path: root/ChangeLog.1

2019-04-12         Arnold D. Robbins     <arnold@skeeve.com>

        * README: Updated in preparation for a release.

2019-04-07         Arnold D. Robbins     <arnold@skeeve.com>

        * config.sub: Updated from GNULIB.

2019-04-05         Arnold D. Robbins     <arnold@skeeve.com>

        *  eval.c  (load_casetable): Always use the locale's set-
tings.           (set_IGNORECASE):  Don't  call   load_casetable.
        *  main.c (main): Call load_casetable if in a single-byte
locale.

2019-03-22         Arnold D. Robbins     <arnold@skeeve.com>

        * config.guess: Updated from GNULIB.

2019-03-17         Arnold D. Robbins     <arnold@skeeve.com>

        * configure.ac: Fix test for ZOS_FAIL.

2019-03-15         Arnold D. Robbins     <arnold@skeeve.com>

        * Makefile.am (pc/Makefile.tst): Yet another fix for out-
        of-tree  builds.  Thanks  to `make distcheck'.          *
configure.ac: Update version for next tar ball.

2019-03-03         Arnold D. Robbins     <arnold@skeeve.com>

        * main.c (usage): Fix help message.

2019-03-01         Arnold D. Robbins     <arnold@skeeve.com>

        * Makefile.am (pc/Makefile.tst): Make sure pc/  directory
exists          first. Needed for `make distcheck'. Not sure what
changed such         that this is only showing up now.          *
configure.ac: Update version for next test tarball.

2019-02-28         Arnold D. Robbins     <arnold@skeeve.com>

        * README.cvs: Removed. Six years is long enough.

2019-02-25         Arnold D. Robbins     <arnold@skeeve.com>

        * config.guess: Updated from GNULIB.

2019-02-25         Arnold D. Robbins     <arnold@skeeve.com>

        * NEWS: Updated.

2019-02-25         Arnold D. Robbins     <arnold@skeeve.com>

        Small   profiling   improvements.   Suggested   by  mukti
        <ferida.cicatriz@gmail.com>.

        * main.c (parse_args): Add warnings that --profile  over-
rides          --pretty-print.          (main): Move setuid warn-
ing to after all the warnings for conflicting          arguments.
        *  profile.c  (pprint):  Don't print extra trailing space
after return         and exit if no  value  associated  with  the
statement.

2019-02-25         Arnold D. Robbins     <arnold@skeeve.com>

        *  configure.ac:  Set  ZOS_FAIL if on ZOS to improve test
suite on that         platform.          * awk.h  (is_valid_iden-
tifier):  Move declaration outside ifdef DYNAMIC.          * com-
mand.y: Fix test for EBCDIC to use  USE_EBCDIC.           *  cus-
tom.h:  Remove definitions of __builtin_expect.          * eval.c
(update_ERRNO_string): Add untested and disabled  code  for  z/OS
        to  remove  leading  IBM error codes.  This might one day
make more of the         tests pass on z/OS.

2019-02-20         Arnold D. Robbins     <arnold@skeeve.com>

        * awk.h (is_valid_identifier): Move  declaration  outside
of         `#if DYNAMIC'.  Thanks to Daniel Richard G.          *
custom.h (builtin_expect): Remove definitions,  now          han-
dled by support/cdefs.h.

2019-02-17         Arnold D. Robbins     <arnold@skeeve.com>

        Fix  debugger  eval  command so that return from a called
        user-defined function  works.  Thanks  to  Lothar  Langer
        <lotharla@gmail.com> for the report.

        *     awk.h    (Op_K_return_from_eval):    New    opcode.
        (parse_program):   Add    boolean    second    parameter,
`from_eval'.           *  awkgram.y (called_from_eval): New vari-
able         (Grammar): Check it for return statements. If  true,
change     the             opcode    to    Op_K_return_from_eval.
        (parse_program):  Set  called_from_eval   to   value   of
from_eval   parameter.            *  debug.c  (pre_execute_code):
Change  test  for  Op_K_return  to  test           for   Op_K_re-
turn_from_eval.           (do_eval): Call parse_program with sec-
ond parameter true.          * eval.c (optypetab): Add entry  for
Op_K_return_from_eval.          * interpret.h (r_interpret): Dit-
to: can't-happen error.          * main.c (main): Call parse_pro-
gram with second parameter false.          * NEWS: Updated.

2019-02-15         Arnold D. Robbins     <arnold@skeeve.com>

        *  awkgram.y:  If  profiling, correctly turn `print' into
`print $0'.          Thanks to Hermann Peifer for the bug report.
        * TODO: Updated.

2019-02-11         Arnold D. Robbins     <arnold@skeeve.com>

        * configure.ac: Update version for next test tarball.

2019-02-07         Arnold D. Robbins     <arnold@skeeve.com>

        *  NEWS:  Updated.          * config.guess, config.rpath,
config.sub: Updated from GNULIB.

2019-02-05         Arnold D. Robbins     <arnold@skeeve.com>

        * Makefile.am (EXTRA_DIST): Add NEWS.1.

2019-02-04         Arnold D. Robbins     <arnold@skeeve.com>

        * NEWS.1: Rotated in from NEWS.          *  NEWS:  Short-
ened  to  start  over  again  with  5.0 changes.          * ext.c
(is_valid_identifier):   Move   outside   of   ifdefs   so   that
        DJGPP (and other code) can find it.

2019-02-03         Arnold D. Robbins     <arnold@skeeve.com>

        *  awkgram.y  (snode): Disallow @/.../ as second param of
index, also.          * TODO: Updated.

2019-02-02         Arnold D. Robbins     <arnold@skeeve.com>

        *  awkgram.c,  command.c:  Regenerated  with  Bison  3.3.
        * NEWS: Updated.

2019-02-02  Eli Zaretskii  <eliz@gnu.org>

        * debug.c (execvp) [__MINGW32__]: Redirect to w32_execvp.
        (restart): No need for MinGW-specific code anymore.

        * nonposix.h: If setlocale is already  a  defined  macro,
#undef  it          before  redefining.   This avoids compilation
warnings if someone         tries to compile Gawk with  Gettext's
libintl.h, which redirects         setlocale to its own function.
        Reported by Budi <budikusasi@gmail.com>.

        *  debug.c  [__MINGW32__]:  Prototype   for   w32_execvp.
        (restart)  [__MINGW32__]:  Call w32_execvp instead of ex-
ecvp.  Don't         type-cast d_argv anymore.

2019-01-27         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y (qualify_name):  Return  duplicated  strings.
        (yylex):  Qualify  names  before returning either NAME or
FUNC_CALL.          (Grammar): Replace  qualified_name  non-token
with NAME, remove         `qualified_name' production.

2019-01-27         Arnold D. Robbins     <arnold@skeeve.com>

        *  Makefile.am,  NEWS, awkgram.y, cint_array.c, custom.h,
debug.c,         eval.c, ext.c,  gawkapi.c,  int_array.c,  inter-
pret.h,  nonposix.h,          profile.c, re.c, replace.c, str_ar-
ray.c, symbol.c: Update         copyright year.

2019-01-26         Arnold D. Robbins     <arnold@skeeve.com>

        * Makefile.am (pc/Makefile.tst): Fix to work for  out  of
tree builds.

2019-01-25         Arnold D. Robbins     <arnold@skeeve.com>

        *  main.c  (UPDATE_YEAR): Bump to 2019.          (usage):
Revise help message a little bit.          *  configure.ac:  Bump
version to start a release spiral.          * NEWS: Updated.

2019-01-24         Arnold D. Robbins     <arnold@skeeve.com>

        *   awkgram.y   (Grammar):  Add  new  production  `quali-
fied_name' which         is NAME + qualification call. Use it ev-
erywhere  that NAME was         used, except for function parame-
ters.

2019-01-23         Arnold D. Robbins     <arnold@skeeve.com>

        * profile.c (adjust_namespace): Check for all upper  case
        identifiers so we don't get things like awk::NF.

2019-01-23         Arnold D. Robbins     <arnold@skeeve.com>

        *  symbol.c  (lookup): Remove second `do_qualify' parame-
ter.          Remove calls to `fix_up_namespace'.  If name starts
with          "awk::" just lookup the compnent name.          Ad-
just all calls to `lookup' in  other  files.           (install):
Don't use `fix_up_namespace'.          (fix_up_namespace): Remove
function.          * awk.h (lookup): Adjust declaration.

2019-01-23         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y (qualify_name): Don't qualify a name if  it's
        a parameter.

2019-01-21         Arnold D. Robbins     <arnold@skeeve.com>

        *  awkgram.y  (Grammar):  Use qualify_name for array sub-
script         expressions. Fixes  the  last  leak  in  the  test
suite.           * awk.h (is_all_upper): Declare.          * sym-
bol.c  (is_all_upper):  Remove   static.            *   awkgram.y
(is_all_upper):  Remove.           (Grammar):  Clean  up  `#if 0'
code.

2019-01-20         Arnold D. Robbins     <arnold@skeeve.com>

        Restore functionality.

        * awkgram.y (qualify_name): Remove `is_var' param, always
check           for   all   upper   case.   Adjust   all   calls.
        (Grammar): Do qualify_name for function calls also.

2019-01-19         Arnold D. Robbins     <arnold@skeeve.com>

        Continue fixing memory leaks.

        *  awk.h   (set_current_namespace):   Declare   function.
        *  awkgram.y: Change all assignments of current_namespace
to calls         to  set_current_namespace.           (is_all_up-
per, qualify_name): New functions.          (in_function): Change
type to bool, and  fix  usages.           (Grammar):  Use  quali-
fy_name  on  variables  and  function  names.           * main.c:
Change all assignments of current_namespace to  calls          to
set_current_namespace.             (set_current_namespace):   New
function.          * profile.c  (pp_namespace):  Don't  free  old
current_namespace. Add         comment explaining why.

2019-01-18         Arnold D. Robbins     <arnold@skeeve.com>

        Start fixing memory leaks related to namespaces.

        * awkgram.y (Grammar): At simple_variable -> NAME, quali-
fy names          before  lookup/install.           (next_source-
file): Check if need to free current_namespace before         as-
signing to it.          (yylex):  Fix  length  of  string  to  be
dup'ed    before    returning            NAME    or    FUNC_CALL.
        (set_namespace): Always free  ns->lextok,  adjust  memory
allocations           appropriately.           *  main.c  (main):
Check if need to free current_namespace before          assigning
to  it.          * profile.c (pp_namespace): Ditto. (This may not
be necessary.)

2019-01-18         Arnold D. Robbins     <arnold@skeeve.com>

        * debug.c (do_set_var): Add comments before calls to  as-
soc_set.           * interpret.h (r_interpret): For Op_sub_array,
deref the subscript         appropriately. Thanks to Andy  Schorr
for the catch.

2019-01-15         Arnold D. Robbins     <arnold@skeeve.com>

        *  array.c  (asort_actual):  Use  assoc_set  in 2 places.
        * awk.h (assoc_set): Improve leading comment.           *
debug.c  (do_set_var):  Use  assoc_set  in  2  places.          *
field.c (set_element, update_PROCINFO_str,  update_PROCINFO_num):
        Use  assoc_set in each.          * gawkapi.c (api_set_ar-
ray_element): Use  assoc_set.           *  interpret.h  (r_inter-
pret): Use assoc_set.          * main.c (init_args, load_environ,
load_procinfo_argv):         Use assoc_set  in  each.           *
mpfr.c  (do_mpfr_intdiv):  Use  assoc_set in 2 places.          *
str_array.c (str_lookup): Fix leading  comment.           *  sym-
bol.c (install): Use assoc_set.

2019-01-15          Andrew  J. Schorr      <aschorr@telemetry-in-
vestments.com>

        * builtin.c (do_match, do_intdiv):  Remove  unused  `sub'
and  `lhs'         variables, since assoc_set is now doing all of
the work.

2019-01-15         Andrew J.  Schorr       <aschorr@telemetry-in-
vestments.com>

        *  awk.h  (assoc_set): Move the definition lower down be-
cause it         needs to be after unref is declared.           *
builtin.c    (do_match):    Use    assoc_set    in    3   places.
        (do_intdiv):    Use    assoc_set     in     2     places.
        (do_typeof): Use assoc_set in 2 places.

2019-01-14          Andrew  J. Schorr      <aschorr@telemetry-in-
vestments.com>

        * awk.h (assoc_set): Add new inline function  to  set  an
array  element          to  eliminate code duplication and reduce
the chance of memory leaks.

2019-01-14         Andrew J.  Schorr       <aschorr@telemetry-in-
vestments.com>

        *  builtin.c (do_typeof): Fix memory leak when populating
the         optional array, and make  sure  to  call  the  astore
method.

2019-01-14         Arnold D. Robbins     <arnold@skeeve.com>

        *   builtin.c   (do_intdiv):  Add  unref  of  subscripts.
        * mpfr.c (do_mpfr_intdiv): Ditto.          Thanks to Andy
Schorr for noticing.

2019-01-09          Andrew  J. Schorr      <aschorr@telemetry-in-
vestments.com>

        * awkgram.y (tokentab): Indicate that typeof may  take  2
arguments.           (snode):  Add  support for typeof's optional
2nd array argument.          * builtin.c (do_typeof): Add support
for  optional  2nd  array  arg,          returning  flag info for
scalars and backend array type for arrays.

2019-01-09         John E. Malmberg      <wb8tyw@qsl.net>

        * awk.h: For non GCC, have __attribute__ definition match
        support/regex_internal.h exactly.

2019-01-08         Arnold D. Robbins     <arnold@skeeve.com>

        *  interpret.h  (r_interpret): For a translatable string,
only copy         the gettext return value if it's different from
the original.          Otherwise, use the original.

2019-01-07          Andrew  J. Schorr      <aschorr@telemetry-in-
vestments.com>

        Use a struct instead of an array  to  contain  the  array
methods         for improved code clarity and flexibility.

        * awk.h (array_funcs_t): Define new struct to contain the
array          methods.           (NODE):  Change  type  of   ar-
ray_funcs (sub.nodep.l.lp) from `afunc_t *'         to `const ar-
ray_funcs_t  *'  (from  a  pointer  to  an  array   of   function
        methods to a pointer to a struct containing the methods).
        (a*_ind): Remove obsolete  method  array  index  defines.
        (a*):  Redefine  array  methods to use struct members in-
stead  of           array   elements.            (str_array_func,
cint_array_func,  int_array_func): Change type         from array
of  afunc_t  to  'const  array_funcs_t'.            (register_ar-
ray_func):   Remove   global  declaration,  since  this  function
        is  called  only  inside  array.c.            *   array.c
(null_array_func):  Change  from  array  of  methods to a struct.
        (array_types): Now an array of pointers to array_funcs_t.
        (AFUNC):  Remove  obsolete  macro.          (register_ar-
ray_func): Change scope to static, and change argument         to
a  pointer  to  array_funcs_t instead of a pointer to an array of
        methods.          (array_init): Modify  calls  to  regis-
ter_array_func to pass the address         of the new array meth-
od structs.          (make_array): Set array_funcs to &  null_ar-
ray_func.           (null_lookup): Modify to use new array method
structs.           (assoc_list):  Update  cint  check  to  use  &
cint_array_func.           * str_array.c (str_array_func, env_ar-
ray_func):  Change  from  array  of          methods  to  an  ar-
ray_funcs_t struct.          (env_clear, init_env_array): Set ar-
ray_funcs to & env_array_func.           *  int_array.c  (int_ar-
ray_func):  Change  from  array  of  methods  to  an          ar-
ray_funcs_t struct.           *  cint_array.c  (cint_array_func):
Ditto.          (cint_lookup): When setting xn->array_funcs, must
now use &.          (cint_dump):  Compare  xn->array_funcs  to  &
int_array_func.

2019-01-06          Andrew  J. Schorr      <aschorr@telemetry-in-
vestments.com>

        * array.c (do_delete): If the array is now  empty,  reset
it  to the         null implementation to avoid being locked into
the backend         optimization previously selected.

2019-01-06         Andrew J.  Schorr       <aschorr@telemetry-in-
vestments.com>

        Remove  pointless  alength macro/method that uses a need-
less         function call indirection to access  the  table_size
value.

        * awk.h (alength, alength_ind): Remove these defines, and
also renumber         the array_funcs items after that,  and  use
the <blah>_ind define to         define <blah> instead of repeat-
ing the hardcoded numeric  value.           (NUM_AFUNCS):  Remove
unused  define.           (assoc_length):  Redefine to access ta-
ble_size  directly.           (null_length):  Remove   prototype.
        *  array.c  (null_array_func):  Remove null_length entry.
        (null_length):  Remove  obsolete   function.            *
cint_array.c   (cint_array_func):   Remove   null_length   entry.
        * int_array.c (int_array_func): Remove null_length entry.
        *  str_array.c  (str_array_func,  env_array_func): Remove
null_length         entry.          * gawkapi.c  (api_flatten_ar-
ray_typed):  Use  the  assoc_empty  macro to         check for an
empty array instead of comparing table_size to 0.          * sym-
bol.c (lookup, check_param_names): Ditto.

2018-12-31         Arnold D. Robbins     <arnold@skeeve.com>

        Clean up namespace handling for the profiler.

        *  awkgram.y  (make_pp_namespace):  Remove  function, not
needed.          (set_namespace): Use estrdup to save the current
namespace.           * main.c (main): Before dumping the program,
set current_namespace         to awk_namespace.           *  pro-
file.c   (pprint):   Use   "awk"  for  comparison,  not  "awk::".
        (pp_namespace): Just print the  name  in  the  @namespace
line.          (adjust_namespace): Adjust for the fact that name-
spaces no longer         have the trailing "::".

2018-12-30         Arnold D. Robbins     <arnold@skeeve.com>

        *  awk.h  (check_qualified_name):   Remove   declaration.
        *   awkgram.y   (check_qualified_special):  Renamed  from
        check_qualified_name and  made  static.           *  pro-
file.c (pprint): Improve comment on namespace list.

2018-12-21         Arnold D. Robbins     <arnold@skeeve.com>

        * configure.ac: Remove -O only if .developing has 'debug'
in it.

2018-12-18         Arnold D. Robbins     <arnold@skeeve.com>

        * Makefile.am (distclean-local): Remove .deps directory.

2018-12-14         Arnold D. Robbins     <arnold@skeeve.com>

        * config.guess: Updated from GNULIB.

2018-12-12         Arnold D. Robbins     <arnold@skeeve.com>

        * TODO: Updated.

2018-12-12         Andrew J.  Schorr       <aschorr@telemetry-in-
vestments.com>

        *   configure.ac   (AC_CHECK_FUNCS):  Check  for  timegm.
        * builtin.c (mktime_tz): Remove  function;  we  will  use
timegm  instead.          (do_mktime): Replace 'mktime_tz(& then,
"UTC+0")' with 'timegm(& then)'.           *  protos.h  (timegm):
Add  timegm  proto  on  systems  lacking it.          * replace.c
(timegm): Include missing_d/timegm.c if needed.

2018-12-12         Arnold D. Robbins     <arnold@skeeve.com>

        * NEWS: Updated some.

2018-12-12         Arnold D. Robbins     <arnold@skeeve.com>

        * awk.h: Add new Op_K_namespace opcode for pretty  print-
ing.           *  awkgram.y (namespace_chain): New variable, list
of successive         @namespace directives seen, for the  pretty
printer.                   (namespace_comment):          Removed.
        (set_namespace): Takes comment as second argument, builds
the  chain.           (mk_function, append_rule): Adjust to store
the chain.           *  debug.c  (print_ns_list):  New  function.
        (print_instruction):  Adjust  Op_rule  and Op_func to use
print_ns_list.          Add case for  Op_K_namespace.           *
eval.c  (optable):  Add  entry  for Op_K_namespace.          (op-
code2str, op2str): Edit /  add  leading  comments,  respectively.
        *    profile.c    (pp_namespace_list):    New   function.
        (pprint): Adjust code to call pp_namespace_list.

2018-12-06         Arnold D. Robbins     <arnold@skeeve.com>

        * configure.ac: Add -ggdb3 to CFLAGS  if  developing  and
remove          -O2  from  Makefile, extension/Makefile, and sup-
port/Makefile.          * config.guess, config.sub: Updated  from
GNULIB.

2018-12-06         Arnold D. Robbins     <arnold@skeeve.com>

        *    awkgram.y    (namespace_comment):    New   variable.
        (Grammar): Handle comments after  @namespace  statements.
        (mk_function):  Add any comment onto the saved namespace.
        (append_rule):  Ditto.           *  profile.c   (pp_name-
space):  Add  second  argument for a comment.          Adjust all
calls.

2018-12-02         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y (mk_program): Add  in  leading  and  trailing
comments         when program block is empty.

2018-11-29         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y (first_rule, func_first): Remove unused vari-
ables.          (Grammar): Simplify rule for range pattern.

2018-11-28         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y (debug_print_comment): New  macro  and  func-
tion.          (load_library): Rework to not try to open the file
if pretty printing.          (append_rule):  Adjust  handling  of
interblock_comment.

2018-11-27         Arnold D. Robbins     <arnold@skeeve.com>

        *  awkgram.y  (Grammar):  In  rule  for function, set in-
terblock_comment.          (mk_function): Hook interblock_comment
onto  fi->comment,  merge it         with the existing one first,
if any. Append trailing_comment.

2018-11-26         Arnold D. Robbins     <arnold@skeeve.com>

        * main.c (platform_name): Add os390. Treat Cygwin and Mac
OS X         as POSIX, per discussion with the dev team.

        Unrelated:

        *  profile.c (print_comment): Indent for chained comment.
        * awkgram.y (load_library): Return early if  just  pretty
printing.           (yylex): Fix handling of ?: and allow_newline
etc.

2018-11-25         Arnold D. Robbins     <arnold@skeeve.com>

        * main.c (platform_name): New function returning platform
name.           (load_procinfo):  Use  `platform_name()'  to  add
"platform" element.          Thanks to Eli Zaretskii for the sug-
gestion.          * NEWS: Updated with info about PROCINFO["plat-
form"].

2018-11-25         Arnold D. Robbins     <arnold@skeeve.com>

        * config.sub: Updated from GNULIB.

2018-11-24         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y  (interblock_comment,  pending_comment):  New
variables.           (Grammar,  mk_program,  add_rule): Adjust to
use them. Changes         handle comments at the outermost level,
between blocks and functions.

2018-11-24         Arnold D. Robbins     <arnold@skeeve.com>

        *  main.c  (arg_assign):  Allow  assigning strongly typed
regexp         constants to variables on  the  command  line  and
with -v.          Thanks to Peng Yu <pengyu.ut@gmail.com> for the
report.

2018-11-17         Arnold D. Robbins     <arnold@skeeve.com>

        *  awkgram.c,  command.c:   Updated   to   Bison   3.2.1.
        *   NEWS:   Updated.            *  Makefile.am  (pc/Make-
file.tst): Make it work for out-of-tree          builds.   Thanks
to `make distcheck' for the report.

2018-11-17         Arnold D. Robbins     <arnold@skeeve.com>

        * config.guess: Updated from GNULIB.

2018-11-11         Arnold D. Robbins     <arnold@skeeve.com>

        * main.c (usage): Improve output for -Z in the help.

2018-11-11         Arnold D. Robbins     <arnold@skeeve.com>

        *     awkgram.y     (outer_comment):     New    variable.
        (Grammar): More changes. We now get the  simple  case  of
leading         and trailing comments, but not all the cases.

2018-11-11         Arnold D. Robbins     <arnold@skeeve.com>

        *    awkgram.y    (trailing_comment):    New    variable.
        (Grammar): For `action', append both  trailing  comments.
This  may          change.  For `statements', append the value of
`trailing_comment'          if  set.  At  `statement  :=  l_brace
statements  rbrace'  save          trailing_comment from r_brace.
        (make_braced_statements): Don't append the  comment  from
r_brace         to the statement list.

2018-10-30         Arnold D. Robbins     <arnold@skeeve.com>

        *  awk.h  (NODE): New field: sub.nodep.x.cmnt, holds com-
ment for          expressions  being  pretty-printed.           *
awkgram.y  (Grammar):  For  expression  lists,  save  any comment
        that came after a comma in the list.          * profile.c
(pp_push):  Accept a fourth argument which is any         comment
associated with the expression. Either it's there or         it's
NULL.  Save  it in the pp_comment field of the node being pushed.
        (tabs, tabs_len, check_indent_level):  Made  into  static
globals.           (pprint):  Adjust  all calls to pp_push(). Fix
parenthesization         for casts in string  lengthes  when  in-
denting.           (pp_list): If a popped item has a comment, in-
clude it and the         following indentation in  the  formatted
result.

2018-10-28         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y (include_source): Add second parameter to re-
turn         SRCFILE pointer.          (Grammar):  For  @include,
save the comment for later dumping         along with the list of
include  files.           (make_include_comment):   Removed.   No
longer   used.            *  profile.c:  Update  copyright  year.
        (print_include_list): New function.          (dump_prog):
Call it.

2018-10-24         Arnold D. Robbins     <arnold@skeeve.com>

        * main.c (usage): Improve output for -Y and add -Z in the
help.

2018-10-23         Arnold D. Robbins     <arnold@skeeve.com>

        * config.sub: Updated from GNULIB.

2018-10-20         Arnold D. Robbins     <arnold@skeeve.com>

        * awk.h (SRCFILE): Add  comment  field  for  comments  on
@load  statements.           *  awkgram.y  (include_source): Type
change to boolean.          (load_library): Type change to  bool-
ean,  additiona  parameter to         bring the SRCFILE struct up
to where we can  add  the  comment  into  it.           (make_in-
clude_comment):  New  function. Not used yet.          (Grammar):
Add  comment  for   @load   statements.   Start   on   preserving
        @include  statements  and their comments for eventual in-
clusion         into the  pretty-printed  code.           *  pro-
file.c  (print_lib_list):  Made  a  little smarter about printing
        the header and indentation. Print the comment if there is
one.

2018-10-17         Arnold D. Robbins     <arnold@skeeve.com>

        *  awk.h  (commenttype): Add FOR_COMMENT.          * awk-
gram.y (Grammar): Handle all the opt_nls cases in         regular
for statements.          * debug.c (print_instruction): Print the
comments  in  Op_K_for.           *  profile.c  (pprint):  Handle
printing comments.

2018-10-17         Arnold D. Robbins     <arnold@skeeve.com>

        *  NEWS: Updated.          * awkgram.y (Grammar): Distin-
guish `print' and `print $0'  in          what  gets  profiled  /
pretty-printed.           *  profile.c (pprint): For case and de-
fault, add final newline         if there is no comment to print.

2018-10-16         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y (Grammar): Improve comment handling for  many
plain          statements. Improve handling for case and default.
        Handle  comments  in   `for   (iggy   in   foo)'   loops.
        (yylex): After a colon, only allow newline if was part of
?:.          (merge_comments): Improve coding so we don't get two
newlines          at  the end of a merged comment.          * de-
bug.c (print_instruction): Handle comments for case and  default.
        Simplify   printing  of  comments.           *  profile.c
(pprint): Handle comments for case and  default.           Remove
compiler warning in Op_and/Op_or handling.

2018-10-14         Arnold D. Robbins     <arnold@skeeve.com>

        *   awkgram.y   (Grammar):   Add   comment  handling  for
do...while.           Regularize  comments  about   `else   ...'.
        *  debug.c  (print_instruction): Improve handling of com-
ments for         do-while and switch, and in general.          *
profile.c (pprint): Revise for do...while.

2018-10-10         Arnold D. Robbins     <arnold@skeeve.com>

        *   awkgram.y   (make_braced_statements):  New  function.
        (Grammar): Use it in the right places instead  of  inline
code.          * debug.c (print_instruction): For Op_comment, fix
type  string.           *  profile.c  (pprint):  Move  tabs   and
tabs_len  to top of function.          For Op_and and Op_or, han-
dle comments.  Use  new  check_indent_level          for  Op_and,
Op_or and Op_cond_exp.

2018-10-10         Arnold D. Robbins     <arnold@skeeve.com>

        *   debug.c   (print_instruction):  For  Op_comment,  use
print_func         instead of fprintf to print the comment type.

2018-10-10         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y (Grammar): For statement -> {  statements  },
fix  comment          handling.   For  `if' statement add comment
support.          * profile.c (pp_print): Print comments  associ-
ated with `if' and `else'.

2018-10-09         Arnold D. Robbins     <arnold@skeeve.com>

        *  awkgram.y  (Grammar):  Fix handling of empty statement
(just a semi-         colon).           (merge_comments):  If  no
chained comment and no second comment,         just return early.

2018-10-09         Arnold D. Robbins     <arnold@skeeve.com>

        *  awk.h  (enum  commenttype): New enum.          (NODE):
Add it to sub.val.          (EOL_COMMENT, FULL_COMMENT): Replaced
with above enum values.          * awkgram.y (Grammar): Finish up
handling comments in function  headers          and  bodies.  Get
trailing  comments  at end of program         (get_comment): When
doing comments, if we got EOF, push it back so that          mul-
tiple  comments  get  merged together.          (merge_comments):
Allow  second  parameter  to  be   NULL.            *   profile.c
(pp_print):   Change   to   use   above   enum   everywhere.  For
        Op_K_print_rec produce plain `print'  instead  of  `print
$0'. Handle         comments in ?:. Handle printing function com-
ments.          (print_comment): Simplify `after_newline' assign-
ment.  Add assertion         that chaining is only two deep.

2018-10-06         Arnold D. Robbins     <arnold@skeeve.com>

        *  awkgram.y  (action):  Improve handling of comments at-
tached         to braces. Helps with function bodies.

2018-10-04         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y (merge_comments): Change return type to void.
Adjust  calls.           (Grammar): For action, pull comments out
of braces and stick         into the list. For function_prologue,
get  comments  from parameters         and ending newline, merge,
and save.  Wherever nls and opt_nls         are used, be sure  to
pass  their  values up via $$. For various         cases that can
be  empty,  explicitly  set  $$  =  NULL.           *   profile.c
(pprint):     Get    switch    working.     Get    ?:    working.
        (print_comment):    Print    any     chained     comment.
        (pp_func): Start revising.

2018-10-03         Arnold D. Robbins     <arnold@skeeve.com>

        *  awkgram.y:  Range  expressions,  enable comment stuff.
        Switch statement: start on comment handling.

2018-10-01         Nelson H.F. Beebe     <beebe@math.utah.edu>

        * custom.h (__builtin_expect): Define for non-GNU compil-
ers.

2018-09-27          Andrew  J. Schorr      <aschorr@telemetry-in-
vestments.com>

        * mpfr.c (force_mpnum): Check that base is 10 also before
        computing  MPG  integer.   Found based on bug report from
        Luu Vinh Phuc <phuclv90@gmail.com>.

2018-09-26         Arnold D. Robbins     <arnold@skeeve.com>

        Add more lint checks.

        * awk.h (POP_ARRAY): Add boolean parameter to  check  for
untyped         value and include lint warning.          * inter-
pret.h (r_interpret): Adjust all calls to  POP_ARRAY.           *
field.c   (do_split):   Improve   lint  warning  text  for  empty
        third argument.          * re.c (make_regexp):  Add  lint
check for ' ' in contents of         regexp to be matched (dynam-
ic or otherwise).

2018-09-23                         Steven                 Packard
<spackard1@bloomberg.net>

        *  awk.h: Add `#if !defined(__SUNPRO_C)' around check for
non-ANSI         compilers.  Needed for some Solaris systems.

2018-09-21         Arnold D. Robbins     <arnold@skeeve.com>

        *  awk.h  (INSTRUCTION):  Add  comment  field  to   carry
        comment   around  during  parsing.           *  awkgram.y
(merge_comments):    New    function.             (split_comment,
check_comment,  comment,  prior_comment,         comment_to_save,
program_comment,  function_comment,          block_comment):  Re-
moved.           (grammar): Remove old code and start passing the
comment         up via yylval and the newlines in the grammar.

2018-09-21         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y: Undo change of  2016-11-28  to  make  switch
        head  a separate production, in preparation for revamping
        comment handling.

2018-09-21         Arnold D. Robbins     <arnold@skeeve.com>

        *  re.c  (make_regexp):  Handle  backslash  at   end   of
        input  string. Thanks to Anatoly Trosinenko         <ana-
toly.trosinenko@gmail.com> for the report.          Also, improve
the error message when compilation of         the regexp fails.

2018-09-21         Arnold D. Robbins     <arnold@skeeve.com>

        *  io.c  (fork_and_open_slave_pty):  Move an errant close
brace         inside the #endif so that gawk will compile on AIX.
Thanks  to          Fredrik  Laurin <fredrik_laurin@yahoo.se> for
the report.

2018-09-18         Arnold D. Robbins     <arnold@skeeve.com>

        * NEWS: Fix typo in gettext version.

        Unrelated:

        * field.c (get_field): Move lint check for  field  access
in  an          END rule to top level, make wording more general.
        * builtin.c (do_print_rec): Restore check before  calling
get_field()         and add do_lint to the condition.

        Unrelated:

        *  field.c (set_NF): Add lint warning if decrementing NF,
which         doesn't work on older Unix awks.

        Unrelated:

        * config.rpath: Sync to GNULIB.

2018-09-16  gettextize  <bug-gnu-gettext@gnu.org>

        * configure.ac (AM_GNU_GETTEXT_VERSION): Bump to  0.19.8.
        * ABOUT-NLS, config.rpath: Updated by gettext 0.19.8.1.

2018-09-16         Arnold D. Robbins     <arnold@skeeve.com>

        * field.c (get_field): Add lint check if accessing $0 in-
side         an END rule, print a "may not be portable"  warning.
        * builtin.c (do_print_rec): Call get_field() uncondition-
ally         in order to do lint check.

        Unrelated:

        * awkgram.c, command.c: Updated to Bison 3.1.           *
NEWS: Updated.

        Unrelated:

        *  Makefile.in, aclocal.m4, configure: Regenerated, using
        Automake 1.16.1.

        Unrelated:

        * gettext.h: Synced with that from Gettext 0.19.8.1.

2018-09-14         Adrian Bunk           <bunk@debian.org>

        * awk.h (init_debug, debug_prog): Move prototypes to here
from  ...          * main.c: ... here.          Thanks to Michael
Tautschnig for noticing the type mismatch.

2018-09-07         Arnold D. Robbins     <arnold@skeeve.com>

        *  awkgram.y,  debug.c,  ext.c,   gawkapi.c,   gawkapi.h,
        io.c:  Remove  unneeded  in  calls to warning(), fatal(),
        and lintwarn().          * config.guess, config.sub:  Up-
dated from GNULIB.

2018-08-24         Arnold D. Robbins     <arnold@skeeve.com>

        *  NEWS: Updated w.r.t. GNULIB regex routines.          *
config.sub: Updated from GNULIB.

2018-08-17         Arnold D. Robbins     <arnold@skeeve.com>

        * config.sub: Updated from GNULIB.

2018-08-10         Arnold D. Robbins     <arnold@skeeve.com>

        * config.guess, config.sub: Updated from GNULIB.

2018-08-05         John E. Malmberg      <wb8tyw@qsl.net>

        * custom.h: Define macros needed for  building  with  gnu
regex.

2018-08-02         Arnold D. Robbins     <arnold@skeeve.com>

        *  awkgram.y  (yylex): Add lint warning upon encountering
escaped         physical newlines in a string.          *  node.c
(make_str_node): Ditto.

2018-08-01         John E. Malmberg      <wb8tyw@qsl.net>

        *  custom.h: Include fp.h on OpenVMS.          Workaround
for bug in math.h missing some declarations.

2018-07-31         Arnold D. Robbins     <arnold@skeeve.com>

        * interpret.h (unfield): Add a call to force_string()  on
        new   value.   See   test/assignnumfield.awk.  Thanks  to
        Ralph Corderoy <ralph@inputplus.co.uk> for  the  bug  re-
port.

2018-07-31         Arnold D. Robbins     <arnold@skeeve.com>

        Handle  newlines  in  -v  and  fix  -<newline>. Thanks to
        Samy Mahmoudi <samy.mahmoudi@gmail.com> for the report.

        * awk.h [ELIDE_BACK_NL]: New  constant.           *  awk-
gram.y  (yylex):  Disallow  any  physical  newlines  in  a string
        even  if  escaped,  in  POSIX  mode.           *   main.c
(arg_assign):  In POSIX mode disallow physical newline         in
a -v value.  Otherwise call make_str_node()  with  ELIDE_BACK_NL.
        * node.c (make_str_node): Handle ELIDE_BACK_NL.

2018-07-31         Arnold D. Robbins     <arnold@skeeve.com>

        * array.c (cmp_strings): Preserve value of lmin so it can
be passed         to memcmp() if  IGNORECASE  comparison  failed.
Thanks  to          M. Rashid Zamani <rashid.z@gmail.com> for the
report.

2018-07-27         Arnold D. Robbins     <arnold@skeeve.com>

        * re.c (make_regexp): Add warnings for unknown escape se-
quences,          similar  to  what  we  already  do for strings.
        * awkgram.y: Add lint warning about concatenation as tar-
get          of  `>'  redirection.   Always use Op_parens so that
        print "foo" > ("foo" 1) does not warn.

2018-07-26         Arnold D. Robbins     <arnold@skeeve.com>

        * awk.h (_GNU_SOURCE): Don't define it here, it's already
        done in config.h.

2018-07-13         Arnold D. Robbins     <arnold@skeeve.com>

        *  builtin.c  (format_nan_inf):  New function to generate
+nan, -nan,         +inf, -inf, so that gawk output for  NaN  and
INF  always  has  a  sign.           Handles  regular  and  MPFR.
        (out_of_range): New function to check if a value  is  out
of  range,         both regular and MPFR.          (format_tree):
Use them in out of range calculation.  Check for  out          of
range  in  floating  point formats also. Allow new *undocumented*
        'P' flag to not do out of range formantting. Used  mainly
for          the  test  program.           * awk.h (out_of_range,
format_nan_inf): Declare functions.          *  mpfr.c  (mpg_for-
mat_val):  Check  for out of range and format the         the re-
sult appropriately if so.          * node.c (r_format_val):  Dit-
to.

2018-06-27         Arnold D. Robbins     <arnold@skeeve.com>

        * config.guess, config.sub: Updated from GNULIB.

2018-06-22          Andrew  J. Schorr      <aschorr@telemetry-in-
vestments.com>

        * node.c (r_force_number): If strtod returns ERANGE,  ac-
cept  the         value as being numeric instead of forcing it to
zero. The impact         is that huge string values that overflow
IEEE  754 limits will now         be converted to inf or -inf in-
stead of 0. Thanks to Daniel         Pettet  for  reporting  this
issue.

2018-06-17         Arnold D. Robbins     <arnold@skeeve.com>

        Fix   a   corner   case   with  EPIPE  to  stdout/stderr.
        Thanks to Peng Yu for the report.

        * io.c (close_io): Add new parameter for indicating EPIPE
happened,          update  the  code  to set it if so.          *
awk.h  (close_io):   Revise   declaration.            *   debug.c
(close_all):  Change  call  to close_io().          * interpret.h
(interpret):   For   Op_atexit,   if   got   an    EPIPE,    call
        die_via_sigpipe().

2018-05-24         Arnold D. Robbins     <arnold@skeeve.com>

        *  awkgram.y  (add_lint):  For no-effect case, also check
for         Op_push_i.  Makes statements consisting of  a  single
constant         trigger the warning.

2018-05-23         Arnold D. Robbins     <arnold@skeeve.com>

        * config.guess, config.sub: Updated from GNULIB.

2018-05-14         Arnold D. Robbins     <arnold@skeeve.com>

        * NEWS: Minor edits.

2018-05-13         Arnold D. Robbins     <arnold@skeeve.com>

        * config.sub: Update from GNULIB.

2018-05-03         Arnold D. Robbins     <arnold@skeeve.com>

        *     Makefile.am    (pc/Makefile.tst):    New    target.
        (dist-hook): Now depends upon pc/Makefile.tst.

2018-04-30         Arnold D. Robbins     <arnold@skeeve.com>

        * gawkapi.h [dl_load_func]: Minor improvement in  version
mismatch           message   as   suggested   by  Manuel  Collado
        <m-collado@users.sourceforge.net>.

2018-04-18         Arnold D. Robbins     <arnold@skeeve.com>

        * config.sub: Updated from GNULIB.

2018-04-14         Manuel Collado        <m-collado@users.source-
forge.net>

        *  field.c  (reset_record):  Disable  fieldwidth from API
        get_record() if $0 is explicitly assigned a new value.

2018-04-02         Arnold D. Robbins     <arnold@skeeve.com>

        *  config.guess,  config.sub,  install-sh:  Updated  from
GNULIB.

2018-04-01         Arnold D. Robbins     <arnold@skeeve.com>

        Fix  a  nasty  MPFR  bug in r_dupnode. If the value being
copied         is MPFN / MPFR, copy those bits over  too.  Thanks
to         Noah Dean <N.Dean@gaminglabs.com> for the report.

        *  node.c (r_dupnode): Check for MPFN / MPFR and copy the
bits         over as needed.

        Unrelated:

        * interpret.h (UNFIELD): Turn into an inline function and
        let  UNFIELD macro call it, allows stepping in with a de-
bugger.          (unfield): Function holding former body  of  UN-
FIELD macro.

2018-03-26         Arnold D. Robbins     <arnold@skeeve.com>

        Remove the tail recursion optimization. It's fundamental-
ly         broken, in the case where a local var becomes a param-
eter.           Thanks to Denis Shirokov <cosmogen@gmail.com> for
the report.          See test/tailrecurse.awk.

        * awk.h [num_tail_calls, tail_call]: Remove  definitions.
        *  awkgram.y  (grammar, mk_function): Remove code related
to         the tail  recursion  optimization.           *  eval.c
(dump_fcall_stack):   Adjust   dumping   code   since  no  longer
        looping  through  tail  call  recursion.            (set-
up_frame):  Remove  code  related to the tail recursion optimiza-
tion.          (init_interpret): Ditto.

2018-03-22         Arnold D. Robbins     <arnold@skeeve.com>

        * configure.ac: Check for %a support  in  system  printf.
        * builtin.c (format_tree): Add support for %a and %A, in-
cluding         a lint warning.          * NEWS: Add a note about
%a support.

2018-03-13         Arnold D. Robbins     <arnold@skeeve.com>

        * debug.c, nonposix.h: Update copyright year.

2018-03-11         Arnold D. Robbins     <arnold@skeeve.com>

        *  compile,  config.guess, config.sub, configure.ac, dep-
comp,         install-sh, mkinstalldirs: Updated.

2018-03-05         Arnold D. Robbins     <arnold@skeeve.com>

        *  awk.h  [PUSH_BINDING,  POP_BINDING]:  Moved   to   ...
        *  debug.c:  here.           *  awkgram.y  (yylex):  Make
do_etoa_init into a  boolean.           *  io.c  (rs1scan):  Make
found into a boolean.

2018-02-25         Arnold D. Robbins     <arnold@skeeve.com>

        * 4.2.1: Release tar ball made.

2018-02-25         Arnold D. Robbins     <arnold@skeeve.com>

        * config.guess, config.sub: Updated.

2018-02-23         Arnold D. Robbins     <arnold@skeeve.com>

        * configure.ac: Restore checking for PPC Macintosh before
        checking for MPFR. See README_d/README.macosx for info.

2018-02-21         Arnold D. Robbins     <arnold@skeeve.com>

        * configure.ac: Remove checking for PPC Macintosh  before
        checking  for  MPFR.  Installing a newer compiler on that
        system allows things to work.

2018-02-19         Arnold D. Robbins     <arnold@skeeve.com>

        * gawkapi.h, io.c, msg.c: Update copyright year.

2018-02-10         Arnold D. Robbins     <arnold@skeeve.com>

        * main.c, msg.c: Add a call to fflush(NULL)  before  each
call          to  abort(),  since  GLIBC 2.27 doesn't necessarily
flush before         aborting.  Thanks to Nelson H.F.  Beebe  for
the report.

2018-02-09         Arnold D. Robbins     <arnold@skeeve.com>

        * io.c (socketopen): Rearrange assigning the flags to use
        AI_ADDRCONFIG only if  family  is  AF_UNSPEC.  Thanks  to
        Houder  <houder@xs4all.nl>  for  the  report  and initial
        code suggestion.

2018-02-07         Andrew J.  Schorr       <aschorr@telemetry-in-
vestments.com>

        Print +"01" should print "1", not "01".          * inter-
pret.h (Op_unary_plus): Need to make a new number node that  does
        not contain the original string representation. The logic
is copied         from Op_unary_minus.          * mpfr.c (mpg_in-
terpret):  Add  new  case  for Op_unary_plus based on         the
Op_unary_minus logic. We need a fresh number node that  does  not
        contain the string.

2018-01-28         Arnold D. Robbins     <arnold@skeeve.com>

        * config.guess, config.sub: Updated.

2018-01-25         Arnold D. Robbins     <arnold@skeeve.com>

        *  main.c  (main): Add explanatory comment about O_APPEND
stuff.          * NEWS: Updated.

2018-01-22         Arnold D. Robbins     <arnold@skeeve.com>

        Fix the inplace tests on *BSD systems.

        * main.c (main): Add O_APPEND flag to fileno(stderr).

2018-01-17         Arnold D. Robbins     <arnold@skeeve.com>

        * builtin.c (do_isarray):  Check  that  tmp  is  Node_var
        before   calling   DEREF.   Thanks   to   Denis  Shirokov
        <cosmogen@gmail.com> for the report.

2018-01-15         Arnold D. Robbins     <arnold@skeeve.com>

        * NEWS: Small typo fix.          *  config.sub:  Updated.
        * io.c (fork_and_open_slave_pty): Rationalize down to one
        function  with  two  bodies.           (set_slave_pty_at-
tributes,  push_pty_line_disciplines):  Move          into #ifdef
for TERMIOS_H. Helps out with VMS compiling.

2018-01-12         Arnold D. Robbins     <arnold@skeeve.com>

        * gawkapi.h:  Remove  extraneous  '*'  on  parameters  of
        type awk_ext_id. Thanks to Andrew Schorr for the report.

2018-01-11         Arnold D. Robbins     <arnold@skeeve.com>

        *   compile,   config.guess,   config.rpath,  config.sub,
        depcomp: Updated from GNULIB.

2018-01-08         John E. Malmberg      <wb8tyw@qsl.net>

        * io.c (set_slave_pty_attributes): Currently  no  termios
on VMS.          (set_slave_pty_attributes): No fork on VMS.

2018-01-04         Arnold D. Robbins     <arnold@skeeve.com>

        Refactor  handling  of  slave  pty. On AIX and HP-UX open
        slave in the child. Otherwise open slave  in  the  parent
        before forking (restoring code mostly from 4.1.3). Thanks
        to Andrew Schorr for the bug report.

        * io.c (fork_and_open_slave_pty): New routine.  Two  ver-
sions.           (set_slave_pty_attributes):  New routine. Common
code used by         both  versions  of  fork_and_open_slave_pty.
        (push_pty_line_disciplines):  New  routine.  Common  code
used  by          both   versions   of   fork_and_open_slave_pty.
        (two_way_open):  Call  fork_and_open_slave_pty instead of
        doing it inline.

2018-01-03         Arnold D. Robbins     <arnold@skeeve.com>

        * main.c (UPDATE_YEAR): Move to  2018.  Revise  copyright
year.          * NEWS: Bring up to date.

2018-01-02         Arnold D. Robbins     <arnold@skeeve.com>

        If  ROUNDMODE  changes,  cause  cached string conversions
        to become invalid. Thanks  to  Nethox  <nethox@gmail.com>
        for the report. Day 1 bug from 4.1.0 release.

        In all the below files, bump copyright year, too.

        *  array.c (value_info): Include strndmode in the output.
        *    awk.h     (NODE):     New     member,     strndmode.
        (MPFR_round_mode):      Add      extern      declaration.
        (force_string_fmt):     Check     s->strnmode     against
MPFR_round_mode.           *  awkgram.y  (set_profile_text):  Set
n->strndmode to MPFR_round_mode.          * builtin.c (do_print):
Remove  tests  and just call force_string_fmt.          * field.c
(set_record): Set  n->strndmode  to  MPFR_round_mode.           *
gawkapi.c    (api_sym_update_scalar):    Set    r->strndmode   to
        MPFR_round_mode.           *  interpret.h  (r_interpret):
For     Op_assign_concat,     set     t1->strndmode            to
MPFR_round_mode.          * mpfr.c (MPFR_round_mode): Define  and
initialize.            (mpfr_format_val):   Set  s->strndmode  to
MPFR_round_mode.          (set_ROUNDMODE): Update MPFR_round_mode
when  ROUNDMODE  changes          successfully.          * node.c
(r_format_val):    Set    s->strndmode    to     MPFR_round_mode.
        (make_str_node):  Set  r->strndmode  to  MPFR_round_mode.
        *  str_array.c   (str_kilobytes):   Update   a   comment.
        *   symbol.c   (check_param_names):  Set  n.strndmode  to
MPFR_round_mode.

2017-12-24         Arnold D. Robbins     <arnold@skeeve.com>

        Avoid some compiler warnings. Thanks to Michal Jaegermann
        <michal.jnn@gmail.com> for the report.

        *     builtin.c     (do_strftime):    Initialize    save.
        (do_dcgetttext):    Initialize    save     and     save2.
        (do_dcngettext):   Ditto.            (do_bindtextdomain):
Initialize save and save1.

        Unrelated:

        * main.c (optlist): Make 'L' option's argument  optional,
to          match  --lint.  Thanks  to  Manuel  Collado  <mcolla-
do2011@gmail.com>         for the report.

2017-12-22         Arnold D. Robbins     <arnold@skeeve.com>

        * config.guess, config.sub, depcomp, install-sh:  Updated
        from GNULIB.

2017-12-20         Arnold D. Robbins     <arnold@skeeve.com>

        *  configure.ac:  Add --enable-versioned-dir option for a
        directory with API version in it to hold extensions.

2017-12-19         Arnold D. Robbins     <arnold@skeeve.com>

        * configure.ac: Remove x's  from  `test  "x$something"  =
"xyes"         kinds of things. With correct quoting, the x isn't
needed.          (DYNAMIC): Remove use of -Wl,-export-dynamic  on
Linux          and  FreeBSD.  It  was needed for old-style exten-
sions, which are         no longer supported.

2017-12-10         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y: For '!' optimization on a  string  constant,
don't          apply  the  optimization  if  it's  a translatable
string. Thanks         to Jeremy Feusi <jeremy@feusi.co> for  the
report.

2017-11-25          Andrew  J. Schorr      <aschorr@telemetry-in-
vestments.com>

        *    debug.c    (do_set_var):    As    in     interpret.h
(Op_store_field),  we should         call the assign function be-
fore unref to give it a chance to copy          any  non-malloced
$n string values before freeing $0.

2017-11-14          Andrew  J. Schorr      <aschorr@telemetry-in-
vestments.com>

        * mpfr.c (get_rnd_mode): Fix MPFR_RNDA comment.

2017-11-14         Andrew J.  Schorr       <aschorr@telemetry-in-
vestments.com>

        Fix  corruption  when  $0 is reassigned while other NODEs
have open         references to $n. Thanks to  Eric  Pruitt  <er-
ic.pruitt@gmail.com> for         the bug report.

        *  field.c (purge_record): For each $n field variable, if
valref > 1         and it has not already been malloced,  make  a
copy  of  the  string,  since          $0  is  about to be reset.
        * interpret.h (Op_store_field): We must call  the  assign
function          before  unref,  since we must copy any non-mal-
loced $n string values         before freeing $0.

2017-11-09         Arnold D. Robbins     <arnold@skeeve.com>

        * main.c  (usage):  Add  a  note  to  not  post  bugs  in
comp.lang.awk.          So there.

2017-11-08         Arnold D. Robbins     <arnold@skeeve.com>

        *  gawkapi.h (AWK_NUMBER_TYPE): Move this enum out to the
        top level so that it works correctly with C++.

2017-10-24         Arnold D. Robbins     <arnold@skeeve.com>

        * NEWS: Updated with info about OS/2.

2017-10-21         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y: For string concatenation,  don't  fold  con-
stants          if  one  or  the other is translatable. Thanks to
Harald van Dijk         <harald@gigawatt.nl> for the report.

2017-10-21  KO Myung-Hun <komh78@gmail.com>

        *  nonposix.h  [__KLIBC__]:  Include   dlfcn.h,   declare
os2_dlsym,  and          redirect  dlsym  to  os2_dlsym.  Declare
os2_fixdllname.  Declare         os2_dlopen and  redirect  dlopen
to  os2_dlopen.          * io.h (find_source) [__EMX__]: Truncate
extension file basename         to 8 characters.

2017-10-19         Arnold D. Robbins     <arnold@skeeve.com>

        * 4.2.0: Release tar ball made.

2017-10-17         Andrew J.  Schorr       <aschorr@telemetry-in-
vestments.com>

        *  NEWS:  Actually, isarray is not deprecated in this re-
lease.          * builtin.c  (do_isarray):  Remove  lint  warning
deprecating isarray.

2017-10-14         Arnold D. Robbins     <arnold@skeeve.com>

        *   field.c   (do_split):  Simplify  the  lint  warnings.
        Based   on   suggested   code   by   Eric   Pruitt   <er-
ic.pruitt@gmail.com>.

        Unrelated:

        *  awkgram.y  (check_funcs):  Remove the REALLYMEAN ifdef
and         simplify the lint checking code for function  defined
but not         called or called but not defined.

2017-10-13         Arnold D. Robbins     <arnold@skeeve.com>

        Assume a more C99 environment:

        * awk.h: Assume we have limits.h, stdarg.h and stdbool.h.
        * configure.ac: Remove checks for limits.h and stdarg.h.

2017-10-10         Arnold D. Robbins     <arnold@skeeve.com>

        * configure.ac: Remove --with-whiny-user-strftime option.
        * NEWS: Updated.          * ChangeLog.0: Fix a typo. :-)

2017-10-08         Arnold D. Robbins     <arnold@skeeve.com>

        * command.y: Fix the FSF's address.

2017-10-08         Arnold D. Robbins     <arnold@skeeve.com>

        *  NEWS:  Rationalized  with respect to stuff on the API.
        Also rationalized with  respect  to  the  pretty  printer
changes.

2017-10-04          Andrew  J. Schorr      <aschorr@telemetry-in-
vestments.com>

        * README: Fix grammar by removing a stray word.

2017-10-04         Arnold D. Robbins     <arnold@skeeve.com>

        * NEWS: Add a note about OS/2 not working.

2017-10-02         Arnold D. Robbins     <arnold@skeeve.com>

        Undo change of 2014-09-07:

        * configure.ac: Remove the undocumented option to  enable
locale           letters  in  identifiers.           *  awkgram.y
(is_alpha): Remove related code.

2017-10-02         Arnold D. Robbins     <arnold@skeeve.com>

        * config.guess, config.sub: Updated.

2017-09-28         Arnold D. Robbins     <arnold@skeeve.com>

        * io.c (devopen): Move declaration of `cp' to where  it's
first used.

2017-09-18         Arnold D. Robbins     <arnold@skeeve.com>

        *   README:   Update  required  version  of  texinfo.tex.
        * compile, config.guess, config.sub, depcomp: Updated.

2017-09-17         Arnold D. Robbins     <arnold@skeeve.com>

        * gawkapi.h: Small changes to make it usable with C++.

2017-09-13         Arnold D. Robbins     <arnold@skeeve.com>

        * Makefile.am (command.c): Don't need the  dependency  on
awkgram.c           anymore.           *  bisonfix.awk:  Removed.
        * README: Revised to describe use of Bison exclusively.

2017-09-13         Andrew J.  Schorr       <aschorr@telemetry-in-
vestments.com>

        *  Makefile.am  (awkgram.c):  Use -o option to bison. Get
rid  of          messing  with  y.tab.h,   that   was   obsolete.
        (EXTRA_DIST): Don't need bisonfix.awk anymore.

2017-09-12           Petr   Ovtchenkov        <ptr@void-ptr.info>
                   Andrew J.  Schorr       <aschorr@telemetry-in-
vestments.com>

        * Makefile.am (command.c): Make dependant on awkgram.c so
        that bison is run serially with make -j.  Use  -o  option
so         that we no longer need bisonfix.awk in this rule.

2017-08-28         Arnold D. Robbins     <arnold@skeeve.com>

        *  interpret.h  (r_interpret):  Add  some  casts to avoid
warning         messages in printf statements.

        Unrelated:

        * configure.ac: Add check  for  gai_strerror.           *
io.c  (socketopen):  Use  gai_strerror  to  add  more information
        if getaddrinfo fails.

2017-08-25         Pat Rankin            <r.pat.rankin@gmail.com>

        * builtin.c (TYPE_MINIMUM): Use type  uintmax_t  for  the
calculation,          deferring the cast to the target type until
the final result.

2017-08-27         Juan Manuel Guerrero  <juan.guerrero@gmx.de>

        * mbsupport.h  [__DJGPP_]:  Provide  multi-byte  specific
declarations         and definitions for DJGPP.

2017-08-23         Arnold D. Robbins     <arnold@skeeve.com>

        * README.git: Minor edits to make build steps clearer.

2017-08-21         Daniel Richard G.     <skunk@iSKUNK.ORG>

        *  awk.h  (c_func):  Renamed  to c_function to avoid con-
flict.          with z/OS headers.          * ext.c, interpret.h:
Ditto.            *   configure:   Regenerated  after  update  to
m4/arch.m4.

2017-08-18         Arnold D. Robbins     <arnold@skeeve.com>

        * debug.c (do_set_var):  Fix  typos  in  error  messages.
        Thanks    to    Jean-Philippe    Guerard           <jean-
philippe.guerard@xn--tigreray-i1a.org> for the report.

2017-08-17         Arnold D. Robbins     <arnold@skeeve.com>

        * field.c (rebuild_record): Set new fields valref to 1 if
        original  field's  valref  was  >  1. Update the comment.
Found         by running chem.          * mpfr.c (do_mpfr_compl):
Fix  typo  in  warning  message.          Thanks to Jean-Philippe
Guerard         <jean-philippe.guerard@xn--tigreray-i1a.org>  for
the  report.           * NEWS: Mention the Italian translation of
the manual.

2017-08-16         Arnold D. Robbins     <arnold@skeeve.com>

        * gawkapi.c (assign_number): Clean up  the  code  a  bit.
        (api_get_mpfr,  api_get_mpz): Add return NULL in non-MPFR
case         to avoid compiler warnings.

2017-08-16         Arnold D. Robbins     <arnold@skeeve.com>

        * config.guess:  Update  from  GNULIB.           *  NEWS,
README: Updated in preparation for release.

2017-08-16          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * gawkapi.c (assign_number): Add 'ifdef HAVE_MPFR'  tests
to get this         to build in the absence of MPFR.

2017-08-13         Arnold D. Robbins     <arnold@skeeve.com>

        *  gawkapi.h  (gawk_api_major_version):  Reset to 2 after
merging          in  feature/api-mpfr  branch.           *  NEWS:
`intdiv'  is  not  built-in;  remove  the entry for up and update
        numbering. Add note about API  supporting  GMP  and  MPFR
values.

2017-08-09         Arnold D. Robbins     <arnold@skeeve.com>

        *  gawkapi.h  (check_mpfr_versions):  Define  differently
based on if         MPFR version macro is defined.  Enhance  body
to  use do/while(0).          (dl_load): Call check_mpfr_versions
unconditionally.

2017-08-09         Arnold D. Robbins     <arnold@skeeve.com>

        * main.c (usage): Add URL for Bug reporting info  to  the
help message.

        Unrelated:

        *  str_array.c (str_lookup): Make a copy of the string if
it         came from Nnull_string or a  null  field.   Thanks  to
        Daniel Pettet for the report.

2017-08-04         Arnold D. Robbins     <arnold@skeeve.com>

        *  array.c,  awk.h,  awkgram.y,  builtin.c, cint_array.c,
        cmd.h, debug.c, eval.c, ext.c, field.c, gawkapi.c,  gawk-
misc.c,          gettext.h,  int_array.c,  main.c, mpfr.c, msg.c,
node.c, profile.c,         re.c,  str_array.c,  symbol.c:  Update
copyright years.

2017-08-04         Arnold D. Robbins     <arnold@skeeve.com>

        * config.guess, mkinstalldirs: Updated from GNULIB.

2017-08-01         Juan Manuel Guerrero  <juan.guerrero@gmx.de>

        Bring DJGPP support up to speed.

        *  awk.h:  Add  DJGPP  in  #if  for include of nonposix.h
        * nonposix.h (btowc, putwc): Add declarations for DJGPP.

2017-07-26         Arnold D. Robbins     <arnold@skeeve.com>

        * awk.h (validate_qualified_name): Return  type  back  to
bool.          * awkgram.y (validate_qualified_name): Return type
back to  bool.           (lookup_builtin):  Make  allowances  for
`awk::' prefix on name.          * interpret.h (r_interpret): For
indirect call, always pass true         for  do_qualify  argument
of  lookup.           *  main.c (main): Make note of errors in -v
values, use this         to exit failure  if  any  happen.   Only
change  current_namespace          to  'awk::'  if  doing  pretty
printing.          (arg_assign): If validate_qualified  name  re-
turns false, error out.

2017-07-26         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y (set_namespace): Change return type void, ad-
just         all return statements.          [@namespace]:  Don't
YYABORT on bad namespace so that we can check         the rest of
the program.          (validate_qualified_name): Check tradition-
al / posix first. Return         after printing an error message;
we don't want to print multiple          messages  for  the  same
identifer.           *  interpret.h  (r_interpret):  For indirect
call, set do_qualify         parameter of lookup based  on  pres-
ence of a colon.

2017-07-20         Arnold D. Robbins     <arnold@skeeve.com>

        Make  qualified  names  work with -v and command-line as-
signments.

        * awk.h (validate_qualified_name,  check_qualified_name):
Declare.            *   awkgram.y  (validate_qualified_name):  No
longer static.          (check_qualified_name): Ditto.          *
main.c  (arg_assign):  Allow  colons  in  identifiers.  If  not a
        bad identifier, call validate_qualified_name and  instead
of         check_special use check_qualified_name.

2017-07-17         Arnold D. Robbins     <arnold@skeeve.com>

        Allow  identifiers that are gawk extensions to be used as
plain         identifiers outside the "awk" namespace.  Make  the
real         builtins available via awk::builtin_name(). Standard
awk reserved         words and builtin functions remain reserved.

        * awk.h (getfname):  Add  boolean  parameter  to  prepend
namespace          or  not.           *  awkgram.y  (check_quali-
fied_name): New function. Enforces that         standard awk  re-
served  words  and  functions  aren't allowed, and         allows
awk::gawk_extension  from  non-"awk"   namespace.            [di-
rect_func_call]:   Always   convert   name  to  fully  qualified.
        (getfname): Add boolean parameter  to  prepend  namespace
        or not. Adjust code.          (yylex): Separate out vali-
dation code from  code  building  the          NAME  token.   Use
check_qualified_name  to  decide  if token is         special in-
stead of check_special.          (validate_qualified_name):  Just
checks  the  form of the fully         qualified name.          *
debug.c (print_instruction): Update call to getfname.           *
profile.c (pprint): Update call to getfname.

2017-07-17         Arnold D. Robbins     <arnold@skeeve.com>

        *  awkgram.y  [direct_func_call]: Save full variable name
for         indirect calls too.

2017-07-17         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y [non_post_simp_exp]:  Merge  LEX_BUILTIN  and
        LEX_LENGTH  expansions.           (lookup_builtin):  Move
MPFR test to after test for sub builtin.

        * awkgram.y [non_post_simp_exp]: Unmerge LEX_BUILTIN  and
        LEX_LENGTH  expansions.  This  introduced a reduce/reduce
        conflict, and those are bad.  I don't know why  I  didn't
        notice this earlier. Sigh.

2017-07-15         Arnold D. Robbins     <arnold@skeeve.com>

        Revert  change  of  2016-07-24  that  always runs the dfa
        matcher. Based on  a  bug  report  from  Alexandre  Oliva
        <lxoliva@fsfla.org>,  DFA  can  cause  gawk to hang, even
        in the C locale.

        * re.c (research): Don't use dfa if need_start is true.

2017-07-13         Arnold D. Robbins     <arnold@skeeve.com>

        More rationalization of the namespace code.

        * awk.h (is_valid_identifier): Declare.           *  awk-
gram.y  (grammar:  direct_func_call):  Store  the fully qualified
        name in the op code.          (yylex): Disallow  reserved
words  and  functions as namespace name.          (check_params):
Small code edit         (validate_qualified_name):  Use  is_lset-
ter.           (set_namespace): Check for NULL pointer first! Use
is_valid_identifier         instead of inline code.  Disallow us-
ing  reserved  words as namespace         names.          * ext.c
(is_valid_identifier): No longer static.          (make_builtin):
Check name and namespace against reserved words and         fatal
error if found.          * gawkapi.c (ns_lookup): New function to
look       for       variables               in       namespaces.
        (api_sym_lookup): Check namespace for  validity  and  use
ns_lookup.          (api_sym_update): Ditto.          * profile.c
(pp_print): Correctly print full function name         in a func-
tion call.

2017-07-11         Arnold D. Robbins     <arnold@skeeve.com>

        Continue adding namespace support to the extension API.

        * awk.h (make_builtin): Add leading name_space parameter.
        * ext.c (make_builtin): Add leading name_space parameter.
        Do the appropriate checking and building of a name before
        installing in  the  symbol  table.           *  gawkapi.c
(add_ext_func):  Use  name_space,  not  namespace.          Check
that  the   parameter   isn't   NULL.            (api_sym_lookup,
api_sym_update):   Use   name_space,  not  namespace.           *
gawkapi.h: Use name_space, not namespace, everywhere.

2017-07-11         Arnold D. Robbins     <arnold@skeeve.com>

        * awk.h (is_letter): Add  declaration.           *  ext.c
(is_valid_identifier): New function.          (make_builtin): Use
is_valid_identifier instead of inline code.          (is_letter):
Moved  from  here  ...           *  awkgram.y (is_letter): ... to
here.           (yylex):  Use  is_letter  instead  of   a   test.
        *  command.y  (yylex):  Ditto.          * main.c (arg_as-
sign): Ditto.

2017-07-07         Arnold D. Robbins     <arnold@skeeve.com>

        Remove warnings from GCC 7.1 compilation.

        * awk.h (fatal_tag_valid): Change type to int.          *
awkgram.y  (yylex):  Set did_newline to true instead of using ++.
        * builtin.c (format_tree): Set lj to true instead of  us-
ing  ++.           * cmd.h (pager_quit_tag_valid): Change type to
int.          * debug.c (pager_quit_tag_valid):  Change  type  to
int.           (do_clear):  Make  bp_found  an  int, change uses.
        (do_run): Treat fatal_tag_valid  as  an  int.           *
msg.c (fatal_tag_valid): Change type to int.

2017-07-07         Arnold D. Robbins     <arnold@skeeve.com>

        *  awkgram.y  (yyerror):  Produce  better diagnostics for
source         files that are not whole syntactic units.

        * gawkapi.c (api_sym_lookup, api_sym_update):  Add  name-
space  parameter.          Currently unused.          * gawkapi.h
(api_sym_lookup,  api_sym_update):   Add   namespace   parameter.
        (api_sym_lookup_ns,   api_sym_update_ns):   New   macros.
        (api_sym_lookup, api_sym_update): Adjust macro bodies.

2017-07-07         Arnold D. Robbins     <arnold@skeeve.com>

        * gawapi.h: Bring descriptive comments up to date,  minor
edits.           *  io.c:  Add some initial comments to functions
where they were missing.

2017-07-03         Arnold D. Robbins     <arnold@skeeve.com>

        * gawkapi.h, gawkapi.c: Typo fixes in comments.

2017-07-01         Arnold D. Robbins     <arnold@skeeve.com>

        * symbol.c  (install):  Don't  call  fix_up_namespace  if
        installing parameters.          * profile.c (remove_name-
space): Renamed to         (adjust_namespace): Make  smarter  and
add  boolean parameter for         if return was mallc'ed. Adjust
calls.

2017-06-30         Arnold D. Robbins     <arnold@skeeve.com>

        Add namespace info into Op_Rule and Op_Func.          Fix
memory management problem.          The changes temporarily break
the test suite.

        *   awk.h   (MAX_INSTRUCTION_ALLOC):   Increase   to   4.
        (Op_K_namespace):  Remove,  not needed.          * eval.c
(optypetab):   Remove   Op_K_namespace.            *    awkgram.y
(make_pp_namespace):  New  function.           (yylex): For BEGIN
etc, allocate 4 in the instruction.          (install_func): Save
namespace  name  for  Op_rule.          (append_rule): Save name-
space name for Op_rule.          *  debug.c  (print_instruction):
Print  namespace for Op_rule, Op_func.          Remove Op_K_name-
space.          * profile.c (pp_namespace, remove_namespace): New
functions.            (pprint):  Call  `pp_namespace'.  Use  `re-
move_namespace' on  variable          names.           (pp_func):
Ditto  on  both.           *  symbol.c (lookup): Initialize `mal-
loced' to false.          (install): Ditto.

        Unbreak the test suite:

        * awk.h (namespace_changed): Declare  new  boolean  vari-
able.           * awkgram.y (namespace_changed): Define new bool-
ean variable.          (set_namespace): Set it to true  when  the
namespace is changed.          * main.c (main): Set current_name-
space to "awk::" for the pretty         printer.          *  pro-
file.c (pp_namespace): If namespace_changed is false, return.

2017-06-28         Arnold D. Robbins     <arnold@skeeve.com>

        *  awk.h  [ns_name]:  Add  macro  in preparation for use.
        * debug.c (print_instruction): Add  case  for  Op_K_name-
space.            Not   really   used  yet.           *  symbol.c
(fix_up_namespace): Bug fix to always allocate         memory for
a  full name. Add boolean parameter to indicate         if memory
was  malloc'ed  or  not.           (lookup):   Adjust   call   to
fix_up_namespace  and use make_str_node         if the string was
malloced.          (install): Ditto.

2017-06-26         Arnold D. Robbins     <arnold@skeeve.com>

        * configure.ac: Turn a tab into a space in AC_DEFINE(SUP-
PLY_INTDIV).

2017-06-25          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * gawkmisc.c  (xmalloc):  Remove  function  now  in  sup-
port/xalloc.h.

2017-06-22         Arnold D. Robbins     <arnold@skeeve.com>

        Make  pretty-printing  include  parentheses that were ex-
plicitly         in the source code. Thanks to Hermann Peifer for
the bug report.

        *  awk.h  (OPCODE):  Add  Op_parens.          * awkgram.y
[Grammar]:  If  pretty-printing,  add   Op_parens   ot   end   of
        list for parenthesized expression.          * eval.c (op-
typetab): Add Op_parens.           *  interpret.h  (r_interpret):
Ditto.           *  profile.c  (pprint):  Ditto.   For  ?:, don't
parenthesize it.           (pp_parenthesize):  If  string  starts
with  left  paren,  return  early.          (parenthesize): Don't
call                                    div_on_left_mul_on_right.
        (div_on_left_mul_on_right):        Remove       function.
        (pp_concat): Don't add parentheses if expressions already
have them.          * NEWS: Updated.

2017-06-21          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        Replace malloc/memset combinations with calloc  by  using
the  new  ezalloc          macro.           * awkgram.y (yyerror,
do_add_srcfile,  funcuse):  Replace  emalloc+memset          with
ezalloc.            *   cint_array.c   (cint_lookup,   cint_copy,
tree_lookup, tree_copy,         leaf_lookup,  leaf_copy):  Ditto.
        *   command.y   (mk_cmdarg):  Ditto.           *  debug.c
(add_item):  Ditto.           *  eval.c   (setup_frame):   Ditto.
        *   field.c  (set_record):  Ditto.           *  gawkapi.c
(api_flatten_array_typed):    Ditto.             *    int_array.c
(int_copy, grow_int_table): Ditto.          * io.c (init_awkpath,
iop_alloc):   Ditto.            *   node.c   (str2wstr):   Ditto.
        *   re.c  (make_regexp):  Ditto.           *  str_array.c
(str_copy, grow_table): Ditto.          * symbol.c  (make_params,
new_context): Ditto.

2017-06-19          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * awk.h (ezalloc): Add new macro to allocate memory  ini-
tialized to zero.          (ezalloc_real): New inline function to
call calloc.          * gawkapi.h (ezalloc): Add new API macro to
allocate memory initialized         to zero.

2017-06-18         Arnold D. Robbins     <arnold@skeeve.com>

        *  builtin.c (mbc_char_count): Fix code to correctly tra-
verse         the string. Thanks to Hermann Peifer  for  the  bug
report.           *  config.guess,  config.sub:  Update to latest
from GNULIB.          * gettext.h: Pull in  a  few  nice  changes
from GNULIB version.

2017-06-16         Arnold D. Robbins     <arnold@skeeve.com>

        *  awk.h  (lookup):  Add second parameter.          * ar-
ray.c (assoc_list): Adjust call to lookup.           *  awkgram.y
(grammar, parms_shadow, install_function, variable):         Dit-
to.          * command.y  [Grammar]:  Ditto.           *  debug.c
(find_symbol):  Ditto.           *  ext.c  (make_builtin): Ditto.
        *  gawkapi.c  (api_sym_lookup,  api_sym_update):   Ditto.
        *  interpret.h  (r_interpret):  Ditto.           * main.c
(arg_assign): Ditto.          (main): Reset current_namespace af-
ter  parsing.          * symbol.c (lookup): New second parameter,
do_qualify. Use it         to qualify names or not.          (in-
stall):   Call   fix_up_namespace.           (is_all_upper):  New
helper routine.          (fix_up_namespace): New function.

2017-06-13         Arnold D. Robbins     <arnold@skeeve.com>

        * awk.h (awk_namespace, current_namespace): Move to const
char.           (SRCFILE): Add namespace element.          * awk-
gram.y (awk_namespace, current_namespace): Move  to  const  char.
        (set_namespace):  New  function.          [Grammer]: Call
it.          (tokentab):  Add  "namespace"  entry.           (in-
clude_source): Push the current namespace.          (next_source-
file): Pop the  current  namespace.           (yylex):  Add  lint
warning  if  a reserved word is used as a namespace         name.
        (validate_qualified_name): Make it an error to use a  re-
served         word as the second part of a fully qualified name.

2017-06-11         Arnold D. Robbins     <arnold@skeeve.com>

        *   awk.h  (awk_namespace,  current_namespace):  Declare.
        (opcodeval):  Add  Op_K_namespace.           *  awkgram.y
(awk_namespace,  current_namespace):  Define.          (LEX_NAME-
SPACE):  Add  lexing  and  parsing  of  `@namespace   directive'.
        (tokentab):   Add  "namespace"  entry.           (yylex):
Check if first part of qualified identifier is         a reserved
word  or  function.          * eval.c (optypetab): Add Op_K_name-
space.

2017-06-06         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y (yylex): Allow :: in identifiers (the  "NAME"
token).            Use   validate_qualified_name   to  check  it.
        (validate_qualified_name): New function.

2017-05-30         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y (nextc): Force  -e  chunks  to  be  syntactic
units.          Needed for namespaces to work correctly.

2017-05-30         Arnold D. Robbins     <arnold@skeeve.com>

        * NEWS: Mention PROCINFO["argv"].

2017-05-24          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * field.c (set_FIELDWIDTHS): Add check to protect against
blank         characters after a `:' skip separator.          Fix
field  number  in  error  message,  thanks  to   a   bug   report
        from Michal Jaegermann.

2017-05-23          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * field.c (set_FIELDWIDTHS): Simplify the logic and  con-
sistentify         use of UINT_MAX.  Make sure that negative val-
ue after : is caught.

2017-05-23         Arnold D. Robbins     <arnold@skeeve.com>

        * field.c (fw_parse_field): Stop upon hitting the end  of
the          record;  this enables correct counting of the number
of fields.          (set_FIELDWIDTHS): Add `*' at end as  meaning
``all the rest         of the data on the line.'' Allow skip:* as
well.          * NEWS: Update information about FIELDWIDTHS.

2017-05-20         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y (add_lint): Make ``no effect'' check  smarter
about         reporting line numbers.

2017-05-01         Arnold D. Robbins     <arnold@skeeve.com>

        *  awkgram.y  (nextc):  Fix  to change of 2017-04-24 such
that         @include works in multibyte locales. Thanks to  Her-
mann         Peifer for the bug report.

2017-04-26          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * awkgram.y (make_regnode): Fix bug -- we should not  set
valref  to  1          when  creating  a node of type Node_regex,
since valref is appropriate         only for Node_val nodes. This
fixes  a  bug introduced in commit         687e6594. Also, add an
assert to make it clear that this function         supports  only
Node_regex  and  Node_dynregex.           * awk.h (NODE): Restore
sref to the `val' subportion,  since  it  is  not          really
needed  for  Node_regex,  now  that  the  bug in make_regnode has
        been fixed.          (valref): Restore macro definition.

2017-04-24         Arnold D. Robbins     <arnold@skeeve.com>

        * awk.h (NODE): Additional  cleanups.  Removed  `aq'  and
`param_list'          elements  from  various  unions and removed
'nextp' and         `a_opaque' defines. None  of  these  were  in
use.           Rework the comment for valref, per suggestion from
        Andrew Schorr.

2017-04-23         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y (nextc): Adjust so that 3.1.x behavior is re-
stored           whereby  --source  arguments  are  concatenated.
Thanks to         "Neil  R.  Ormos"  <ormos-gnulists17@ormos.org>
for the report.

2017-04-21         Arnold D. Robbins     <arnold@skeeve.com>

        *  awk.h (NODE): Put the `val' subportion back the way it
        was and move valref (formerly sref)  out  of  the  unions
        entirely.  This  was  the real problem. Rework the corre-
sponding         commentary.          [valref]: Removed the macro
definition.

2017-04-20         Arnold D. Robbins     <arnold@skeeve.com>

        *  configure.ac:  Make  letter  case usage in the various
        AC_ARG_ENABLE messages consistent with the rest  of  con-
figure         output.          (--disable-mpfr): Add this option
to make it easier         to check compiles without  MPFR.  Moti-
vated  by:          *  awk.h  (NODE): Rearrange the layout of the
'val' subportion         of the union to fix  alignment  problems
when  compiling  without         MPFR.  The problem only happened
on 64-bit compiles, not         32-bit compiles.

2017-04-16         Arnold D. Robbins     <arnold@skeeve.com>

        Rename intdiv it intdiv0 and require enabling at  config-
ure time.

        *  awkgram.y  (tokentab):  Bracket intdiv0 in #ifdef SUP-
PLY_INTDIV.           (snode):  Similar.            *   builtin.c
(do_intdiv):  Bracket  in #ifdef SUPPLY_INTDIV.          * mpfr.c
(do_mpfr_intdiv): Bracket  in  #ifdef  SUPPLY_INTDIV.           *
configure.ac:  Add  --enable-builtin-intdiv0  option. If enabled,
        also revise doc/gawktexi.in.

2017-04-16         Arnold D. Robbins     <arnold@skeeve.com>

        * builtin.c (do_intdiv):  Use  DEREF  on  the  arguments.
        Thanks   to   Andrew  Schorr  for  finding  the  problem.
        * mpfr.c (do_mpfr_intdiv): Return -1 if numerator or  de-
nominator          are  not  valid  numbers.   Unref various bits
first.

2017-04-13         Arnold D. Robbins     <arnold@skeeve.com>

        * awk.h (make_number_node): Simplify.           *  mpfr.c
(mpg_node): Change parameter name to `flags'.

2017-04-12         Arnold D. Robbins     <arnold@skeeve.com>

        *  mpfr.c  (mpg_format_val):  Set  STRCUR flag when we're
done.          Fixes a memory leak. Thanks to  valgrind  for  the
report.

        * builtin.c (do_dcgettext): Move declaration of reslen to
        outside the ifdefs. Thanks to Hermann Peifer for the  re-
port.

        *  gawkapi.c  (awk_value_to_node): Initialize ext_ret_val
to NULL         to avoid compiler warnings.

2017-04-12         Manuel Collado        <m-collado@users.source-
forge.net>

        Fix  the  FPAT  bug reported by Ed Morton in the gawk-bug
mailing list.

        * awk.h (Regexp): Remove the non_empty  flag.           *
field.c  (fpat_parse_field):  Restructure the code to reduce com-
plexity         and document the new structure.

        * field.c (fpat_parse_field):  Further  restructuring  to
avoid         invalid reads as reported by valgrind.

2017-04-10          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * awk.h (enum opcodeval): For  the  avoidance  of  doubt,
specify  that         Op_illegal must equal zero.          * sym-
bol.c (bcfree): Improve clarity by setting opcode  to  Op_illegal
        instead of 0.          (free_bc_mempool): Improve clarity
by comparing opcode to Op_illegal         instead of to 0.

        * field.c (set_FIELDWIDTHS): Set use_chars  to  awk_true,
since its         type is awk_bool_t.

2017-04-10         Arnold D. Robbins     <arnold@skeeve.com>

        *  symbol.c (free_bc_mempool): Change `first' from int to
bool.

2017-04-09         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  field.c (fw_parse_field): Edit comment about resetting
shift state.          * gawkapi.h  (awk_fieldwidth_info_t):  Make
white space more uniform.

2017-04-08  Eli Zaretskii  <eliz@gnu.org>

        *  main.c (usage, copyleft) [__MINGW32__]:         * io.c
(non_fatal_flush_std_file,    close_io)    [__MINGW32__]:    Call
        w32_maybe_set_errno  to correctly set errno to EPIPE when
appropriate.

        * awk.h (die_via_sigpipe)  [__MINGW32__]:  MinGW-specific
definition.

2017-04-07          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * awk.h  (INSTRUCTION_POOL):  Redefine  as  an  array  of
structures  so  we         can track allocated blocks.          *
symbol.c  (pools):  Make  it  a   pointer   to   avoid   copying.
        (struct  instruction_block):  Define  structure to hold a
block of         allocated instructions.           (bcfree):  Up-
date  to use new INSTRUCTION_POOL definition.          (bcalloc):
Allocate  an  instruction  by  searching  first   on   the   free
        list,  second  for  free  space  in the current block, or
third by         allocating a new block.           (set_context):
Update    to    reflect    that   pools   is   now   a   pointer.
        (free_bc_mempool): New helper function to free a pool  of
a  certain  size.          (fre_bcpool): Call free_bc_mempool for
each pool.

2017-04-04         Arnold D. Robbins     <arnold@skeeve.com>

        *   awk.h   (INSTRUCTION):    Add    pool_size    member.
        [MAX_INSTRUCTION_ALLOC]:  New  macro.           (INSTRUC-
TION_POOL): New type.           (struct  context):  Use  INSTRUC-
TION_POOL.           * array.c (assoc_list): Reorg the code a bit
to make sure         to always free  the  INSTRUCTIONs  allocated
for  calling  a          user-supplied sorting function. Based on
code by         Andrew Schorr.          * symbol.c (free_bcpool):
Rework  to  use  an INSTRUCTION_POOL.          (bcfree, bcalloc):
Rework to use separate chains in          the  instruction  pool.
        (set_context): Update appropriately.

2017-03-27         Arnold D. Robbins     <arnold@skeeve.com>

        *  field.c  (parse_field_func_t):  New  typedef.  Used as
needed.          (fw_parse_field): Edit comment  about  resetting
shift  state.           (set_parser): Fix leading comment's style
and type of argument.          (set_FIELDWIDTHS): Improve the fa-
tal error message.          * gawkapi.h: Minor edits in some com-
ments.

2017-03-27         Arnold D. Robbins     <arnold@skeeve.com>

        Cause EPIPE errors to stdout to generate a real SIGPIPE.

        *  awk.h   (die_via_sigpipe):   New   macro.            *
builtin.c   (efwrite):   Use   it.            *   io.c   (non_fa-
tal_flush_std_file): Ditto.          * main.c (usage): Ditto.

2017-03-25         Arnold D. Robbins     <arnold@skeeve.com>

        * io.c (flush_io): Use r_fatal and r_warning for message-
func         in the loop.

2017-03-24         Arnold D. Robbins     <arnold@skeeve.com>

        *  builtin.c  (efwrite): Exit successfully upon EPIPE, as
SIGPIPE         done. Improve  error  messages  upon  failure  to
write.           (do_fflush):  Update  ERRNO  for non-fatal flush
failures.          * io.c (non_fatal_flush_std_file): Update  ER-
RNO  when  flush  is         non-fatal.          (flush_io): If a
redirect is marked non-fatal,  only  warning,          not  fatal
message.

2017-03-23         Arnold D. Robbins     <arnold@skeeve.com>

        * config.sub: Updated again.

2017-03-22          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * NEWS: Document new PROCINFO["FS"] value of "API".

2017-03-22         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  NEWS: Document new FIELDWIDTHS skip capability and API
input parser         field parsing enhancement.

2017-03-22         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  gawkapi.h (awk_input_buf_t): Update get_record comment
regarding the         new field_width argument.

2017-03-21         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        * gawkapi.h (awk_fieldwidth_info_t): Define new structure
to contain         API field parsing info, replacing the previous
awk_input_field_info_t             array.             (awk_field-
width_info_size):  Define  macro  to  calculate   size   of   the
        variable-length      awk_fieldwidth_info_t     structure.
        (awk_input_buf_t): Update get_record prototype to  update
the  type          of  the final field_width argument from 'const
awk_input_field_info_t **'         to  'const  awk_fieldwidth_in-
fo_t **'.          * awk.h (set_record): Change 3rd argument from
        'const awk_input_field_info_t  *'  to  'const  awk_field-
width_info_t   *'.            *  io.c  (inrec,  do_getline_redir,
do_getline): Change field_width type         from 'const  awk_in-
put_field_info_t  *'  to         'const awk_fieldwidth_info_t *'.
        (get_a_record): Change  field_width  argument  type  from
        'const  awk_input_field_info_t  **'  to 'const awk_field-
width_info_t **'.          * field.c  (api_parser_override):  De-
fine new boolean to track whether         API parsing is current-
ly overriding default parsing behavior.          (api_fw): Change
type  from  'const  awk_input_field_info_t  *'          to 'const
awk_fieldwidth_info_t  *'.           (FIELDWIDTHS):  Change  type
from 'int *' to 'awk_fieldwidth_info_t *'.          (set_record):
Use new boolean api_parser_override to track whether          API
parsing  override  is  in  effect, since we can no longer discern
        this from the value of parse_field -- FIELDWIDTHS parsing
uses the         same function.          (calc_mbslen): New func-
tion to calculate the  length  of  a  multi-byte          string.
        (fw_parse_field):   Enhance  to  support  the  awk_field-
width_info_t         structure instead of simply using  an  array
of integer field widths.          (api_parse_field): Remove func-
tion no longer needed since fw_parse_field          now  supports
both  FIELDWIDTHS  and  API  parsing.           (set_parser): Use
api_parser_override instead of comparing  parse_field          to
api_parse_field.           (set_FIELDWIDTHS):  Enhance to use new
awk_fieldwidth_info_t structure         and parse new skip prefix
for   each  field.           (current_field_sep):  Use  api_pars-
er_override flag instead of comparing         to api_parse_field.
        (current_field_sep_str): Ditto.

2017-03-20         Arnold D. Robbins     <arnold@skeeve.com>

        Improve   handling   of   EPIPE.   Problems  reported  by
        Alexandre    Ferrieux     <alexandre.ferrieux@orange.com>
        and David Kerns <david.t.kerns@gmail.com>.

        *    awk.h    (ignore_sigpipe,    set_sigpipe_to_default,
        non_fatal_flush_std):     Declare     new      functions.
        (ignore_sigpipe,  set_sigpipe_to_default,         non_fa-
tal_flush_std): New  macros.           *  builtin.c  (do_fflush):
When  nonfatal  not  in force, flush         of stdout/stderr and
EPIPE exits, simulating SIGPIPE, as         in  nawk/mawk.  Flush
of   other  redirections  with  EPIPE  now          also  fatals.
        (do_system): Use ignore_sipipe and set_sigpipe_to_default
        instead  of uglier inline ifdefed code.          * main.c
(main): Ditto.          *  io.c  (redirect_string,  two_way_open,
gawk_popen):  Ditto.          (flush_io): Use non_fatal_flush_std
for stdout and stderr.

        Unrelated:

        *  config.guess,  config.rpath,  config.sub,  install-sh:
        Sync with GNULIB.

2017-03-16         Arnold D. Robbins     <arnold@skeeve.com>

        * configure.ac: Some cleanups.

2017-03-09          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * gawkapi.h (awk_input_field_info_t): Define  new  struc-
ture to contain         API field parsing info.          (awk_in-
put_buf_t): Update  get_record  prototype  to  use  an  array  of
        awk_input_field_info_t  instead  of  integers.          *
awk.h (set_record): Change 3rd argument from  'const  int  *'  to
        'const   awk_input_field_info_t  *'.           *  field.c
(api_fw):  Now  points  to  an  array  of  awk_input_field_info_t
        instead  of  integers.           (set_record): Change 3rd
argument to point to an array of          awk_input_field_info_t.
        (api_parse_field):  Update  parsing  logic to use awk_in-
put_field_info_t         structures instead of an array of  inte-
gers.           *  io.c  (inrec,  do_getline_redir,  do_getline):
Change field_width type         from  'const  int  *'  to  'const
awk_input_field_info_t    *'.            (get_a_record):   Change
field_width argument type from 'const int **'          to  'const
awk_input_field_info_t **'.

2017-03-09         Arnold D. Robbins     <arnold@skeeve.com>

        * field.c: Minor style edits.

2017-03-06          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        *    field.c    (normal_parse_field):    Renamed     from
save_parse_field  to  reflect         better its purpose. Added a
comment  to  explain  more  clearly  what's           going   on.
        (set_record, set_parser): Rename save_parse_field to nor-
mal_parse_field.

2017-03-06         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  gawkapi.h  (awk_input_buf_t): Remove field_width array
and instead         add it as a 6th argument  to  the  get_record
function. This should         not break existing code, since it's
fine to ignore the additional         argument. Document the  be-
havior of the field_width argument.          * io.c (inrec): Pass
pointer to field_width array to  get_a_record,          and  then
hand  it  off  to set_record.          (do_getline_redir): If not
reading into a variable, pass pointer to         field_width  ar-
ray   to  get_a_record  and  then  hand  it  off  to  set_record.
        (do_getline): Ditto.          (get_a_record): Add  a  4th
field_width   argument   to   pass  through  to          the  API
get_record method.

2017-03-05         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  awk.h  (set_record):  Add  a new argument containing a
field-width           array   returned   by   an   API    parser.
        (field_sep_type):   Add   new   enum   value   Using_API.
        (current_field_sep_str): Declare new function.          *
field.c  (save_parse_field):  New  static  variable  to  save the
        parse_field value in cases where it's overridden  by  API
parsing.           (api_fw):  New static variable to hold pointer
to API parser  fieldwidth          array.           (set_record):
Add new field-width array argument. If present, API         pars-
ing   will    override    the    default    parsing    mechanism.
        (api_parse_field):  New  field  parser using field widths
supplied by the         API. This is very similar to the existing
fw_parse_field  function.           (get_field): Fix typo in com-
ment.          (set_parser): New function to set  default  parser
and  check  whether         there's an API parser override in ef-
fect. Update PROCINFO["FS"]  if          something  has  changed.
        (set_FIELDWIDTHS):   Use  set_parser  and  stop  updating
PROCINFO["FS"].           (set_FS):  Ditto.           (set_FPAT):
Ditto.           (current_field_sep): Return Using_API when using
the   API   field    parsing            widths.             (cur-
rent_field_sep_str):  New  function  to  return the proper string
        value for PROCINFO["FS"].          *  gawkapi.h  (awk_in-
put_buf_t):  Add  field_width  array to enable the         parser
get_record function  to  supply  field  widths  to  override  the
        default  gawk  field  parsing  mechanism.          * io.c
(inrec):  Pass  iop->public.field_width  to  set_record  as   the
        3rd  argument  to  enable  API  field  parsing overrides.
        (do_getline_redir, do_getline): Ditto.          *  main.c
(load_procinfo):    Use    new   current_field_sep_str   function
        instead of  switching  on  the  return  value  from  cur-
rent_field_sep.

2017-02-23         Arnold D. Robbins     <arnold@skeeve.com>

        * awk.h (boolval): Return bool instead of int.          *
eval.c (eval_condition):  Same.           *  io.c  (pty_vs_pipe):
Same         Thanks to Andrew Schorr for pointing these out.

2017-02-21          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * NEWS: Document that mktime now takes an  optional  utc-
flag argument.          * awkgram.y (tokentab): Modify mktime en-
try  to  indicate  that  it  may          accept  two  arguments.
        * builtin.c (mktime_tz): New function to run mktime in an
arbitrary         time zone.  Code  was  copied  from  the  Linux
timegm  man  page.           (do_mktime): Add support for new op-
tional 2nd argument utc-flag by         using the  new  mktime_tz
function.           (do_strftime): Change do_gmt type from int to
bool.

2017-02-17         Arnold D. Robbins     <arnold@skeeve.com>

        *  builtin.c  (do_typeof):  Handle  arguments  that  have
        the NULL_FIELD flag set.

2017-02-03          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * awkgram.y (set_profile_text): Improve code  clarity  by
using  emalloc          to allocate the string instead of abusing
estrdup.

2017-02-02         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y (set_profile_next): Allocate an extra byte at
the          end for the NUL in case we add a sign. Thanks to An-
drew Schorr         for making me look at this code.

        And later in the same day:

        * awkgram.y  (set_profile_next):  Undo  previous  change,
since estrdup         handles it, but updated the comments.

2017-02-01         Arnold D. Robbins     <arnold@skeeve.com>

        *  builtin.c (mbc_char_count): Remove spurious multiplies
by         gawk_mb_cur_max. Thanks to Andrew Schorr for making me
look         at this code.

        Unrelated:

        *   awkgram.y   (make_profile_number):   Renamed  to  ...
        (set_profile_next): New function. All calls adjusted. Al-
so improved         use at MPFR number case.

2017-01-28          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * io.c (inetfile): Replace strncmp with memcmp in  a  few
places,  now          that  we are checking string length before-
hand.

2017-01-27         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  io.c  (redirect_string):  Check explen positive before
accessing *str.          In lintwarn message, use  explen  string
length.  Pass  length  to inetfile.          (devopen): Pass name
length to inetfile.          Stop  assuming  that  remoteport  is
NUL-terminated.           (two_way_open): Pass name length to in-
etfile.          (inetfile): Stop assuming  NUL  string  termina-
tion; add checks to avoid         string overrun.

2017-01-27          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * awk.h (str_terminate_f): New helper function for termi-
nating  a  string          NODE.           (str_terminate): Macro
wrapper  to  call  str_terminate_f.           (str_restore):  New
macro  to restore the string.          * builtin.c (do_strftime):
Use str_terminate and str_restore.          (do_dcgettext):  Dit-
to, and remove saved_end flag since equivalent         to testing
(t2  !=  NULL).   Fix   overrun   bug   in   calculating   result
        length    when    !ENABLE_NLS.            (do_dcngettext,
do_bindtextdomain): Use str_terminate and str_restore.          *
interpret.h   (Op_arrayfor_init,  Op_indirect_func_call):  Ditto.
        * str_array.c (env_remove): Ditto.

2017-01-27         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  interpret.h  [UNFIELD]:  Fix  condition for assignment
from         value with valref == 1. Fixes problems introduced at
gawk 4.1.2.

2017-01-27         Arnold D. Robbins     <arnold@skeeve.com>

        *  interpret.h: Update copyright year.          * debug.c
(do_run):   Rework   error   message   to    ease    translation.
        Thanks  to  Rafael Fontenelle <rafaelff@gnome.org> and to
        Eli Zaretskii <eliz@gnu.org>.

2017-01-26         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  builtin.c  (do_dcgettext):  First  argument also needs
protection         from string overrun.          (do_dcngettext):
Need  to  terminate string1 and string2 also,         and replace
strlen(the_result), which could overrun.          (do_bindtextdo-
main):    Terminate    both    string    args,    and   eliminate
        saved_end boolean which is redundant with (t2 != NULL).

2017-01-26         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  interpret.h (Op_arrayfor_init): Protect against string
overrun            on    sorting    method.             (Op_indi-
rect_func_call): Terminate function name.

2017-01-26          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * str_array.c (env_remove): Terminate string before call-
ing unsetenv.

2017-01-26          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * node.c (is_hex): Add a new argument pointing to the end
of  the  string          so  we  can  check  for  string overrun.
        (r_force_number): Pass string end to is_hex.

2017-01-26         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  awk.h  (get_numbase): Add string length argument so we
can operate          on  unterminated  strings.           *  awk-
gram.y:  Call  get_numbase with string length, and fix off-by-one
        error  in  length  passed  to  nondec2awknum:  should  be
strlen(tokstart)-1          based on surrounding code.          *
builtin.c  (do_strtonum):  Pass  string  length  to  get_numbase.
        (nondec2awknum):  Check  string  length  before accessing
characters.          * mpfr.c (force_mpnum): Pass  string  length
to  get_numbase.           * node.c (r_force_number): Pass string
length to get_numbase.          (get_numbase): Add string  length
argument and honor it.

2017-01-26          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * builtin.c (do_strftime): If format argument is  passed,
we need         to terminate it in case it's a field variable.

2017-01-26          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * node.c (r_format_val): Before we  free  s->stptr,  make
sure  that it         was malloced.          (wstr2str): Add com-
ment explaining why it's safe to  free  n->stptr          without
doing  any checks.          * mpfr.c (mpg_format_val): Ditto. And
no need to reset the STRCUR flag         that we just checked.

2017-01-26         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  awk.h  (enum block_id): Remove BLOCK_INVALID, since it
serves no         useful purpose and seems to slow things down  a
bit.          * node.c (nextfree): Remove first invalid entry.

2017-01-25          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * awk.h (BLOCK): Remove typedef. BLOCK  was  used  for  2
different          purposes:  to  contain a block allocation list
header, and to hold         each individual allocated item.  This
was  confusing,  because the "size"         field was set only in
the header, but not in each element.          (struct block_head-
er): The block header contains a pointer to the first         el-
ement and the element size.          (struct block_item):  Repre-
sent a single allocated item. This contains         only a point-
er to the  next  element.  This  reduces  the  minimum  allocated
        item  size  from  2 pointers to 1 (16 bytes to 8 bytes on
x86_64).          (nextfree): Change array item type  from  BLOCK
to  struct  block_header.           (getblock, freeblock): Change
cast from  'BLOCK'  to  'struct  block_item'.           *  node.c
(nextfree):  Now  an  array  of  'struct block_header' instead of
        BLOCK. Switch the ordering to put the next pointer before
the  size.           (more_blocks):  Replace 'BLOCK' with 'struct
block_item', and add         an assert to ensure that the alloca-
tion  size  is  at least as large         as 'struct block_item',
i.e. 1 pointer.

2017-01-22         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  awk.h  (numtype_choose): New backend macro used to im-
plement         various macros whose calculations depend on how a
number is         actually represented. This improves readability
and should give         a small performance improvement when  not
using extended precision.          (get_number_ui, get_number_si,
get_number_d, get_number_uj, iszero):         Rewrite  using  new
numtype_choose macro.

2017-01-04         Arnold Robbins        <arnold@skeeve.com>

        Trade  space for time for programs that toggle IGNORECASE
a lot.          Brings 25% to 39% speedup.  NODE does not actual-
ly grow in size.

        *   awk.h   (NODE::preg):  Now  an  array  of  size  two.
        [CASE]: Flag no longer needed, so removed.           (IG-
NORECASE):  Change  type  from  int to bool.          * awkgram.y
(make_regnode):  Build  two  copies  of  the   compiled   regexp,
        one  without  ignorecase,  and  one with.          * io.c
(RS_re):  Array  replacing  RS_re_yes_case   and   RS_re_no_case.
        (set_RS):  Use RS_re[IGNORECASE] as appropriate. Free and
recompute          as  needed.           *  main.c  (IGNORECASE):
Change  type  from int to bool.          * re.c (re_update): Sim-
plify the code. No need to check CASE  flag          any  longer.
Recompute  only  if  text  of regexp changed.          * symbol.c
(free_bc_internal):   Adjust   to   free   both    elements    of
        m_re_reg.

2017-01-18          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * interpret.h (r_interpret): Increase robustness  of  the
optimization          logic in Op_assign_concat -- check that the
node has MALLOC set,         and make sure to wipe all flags oth-
er than MALLOC, STRING, STRCUR,         and possibly WSTRCUR. Use
STFMT_UNUSED define.

2017-01-15         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  interpret.h (r_interpret): Fix bug in Op_assign_concat
reported         on Cygwin mailing list. The string concatenation
optimization  was         not updating the node correctly by set-
ting STRING and STRCUR flags         and setting stfmt.

2017-01-06         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        Enhance  API  to  support  extended-precision arithmetic.
        * awk.h (enum block_id): Add new  values  BLOCK_MPFR  and
BLOCK_MPZ.           (make_number_node):  New  inline function to
reduce  code  duplication          for  creating  numeric  nodes.
        *   gawkapi.h   (gawk_api_major_version):   Bump   to  3.
        (awk_number_t): New typedef  to  represent  numbers  with
varying internal         representations.          (awk_value_t):
For numbers, replace double with awk_number_t.          (num_val-
ue):  Redefine.           (num_type,  num_ptr):  New  defines for
awk_number_t union members.          (gawk_api_t): Add  constants
for  version  checking: gmp_major_version,         gmp_minor_ver-
sion, mpfr_major_version,  and  mpfr_minor_version.           Add
functions  api_get_mpfr  and  api_get_mpz  to allocate memory for
        extended-precision   numbers    to    hand    to    gawk.
        (get_mpfr_ptr,   get_mpz_ptr):   Helper  macros  to  wrap
api_get_mpfr  and          api_get_mpz.            (make_number):
Modify  to  populate  awk_number_t correctly.          (make_num-
ber_mpz,  make_number_mpfr):  New  helper  functions  to   create
        extended-precision             numeric             nodes.
        (check_mpfr_version): New macro to check GMP/MPFR version
compatibility          in extensions that want to support extend-
ed-precision math.          * gawkapi.c (getmpfr, freempfr, getm-
pz,  freempz):  New  macros  to          allocate and free memory
blocks for extended-precision math.          (awk_value_to_node):
For  AWK_NUMBER  values, support three different         kinds of
internal  numbers:  double,  mpz_t,  and  mpfr_t.            (as-
sign_number):  New  helper  function to convert a numeric node to
        an  awk_value_t.           (node_to_awk_value):  Use  as-
sign_number  to  pass  numbers properly.          (api_get_mpfr):
Implement new api_get_mpfr hook.          (api_get_mpfz):  Imple-
ment  new  api_get_mpz  hook.          (api_impl): Add GMP & MPFR
versions,  api_get_mpfr,  and  api_get_mpz.            *   node.c
(r_make_number):   Use   new   make_number_node  inline  function
        to  reduce  code  duplication.           (nextfree):  Add
block  allocators  for  mpfr_t and mpz_t.          (more_blocks):
Add  an  assert  to  protect  against  cases  where   the   block
        size  is  too  small  to  hold  our structure.          *
mpfr.c  (mpg_node):  Use  new  make_number_node  inline  function
        to reduce code duplication.

2017-01-04         Arnold Robbins        <arnold@skeeve.com>

        *  config.guess,  config.sub, compile, depcomp: Sync from
latest         in GNULIB.

2016-12-27         Juergen  Kahrs          <Juergen.Kahrs@google-
mail.com>

        * CMakeLists.txt: Updated after adding support library.

2016-12-23         Arnold D. Robbins     <arnold@skeeve.com>

        *  configure.ac (GNUPG_CHECK_MPFR): Don't call on PowerPC
        Macintosh.  C99 and the last version of MPFR  that  works
on         that platform don't get along. Sigh.

2016-12-22         Arnold D. Robbins     <arnold@skeeve.com>

        *  dfa.c:  Sync  with  GNULIB.          * intprops.h: New
file.          * Makefile.am (base_sources): Add intprops.h.

        Unrelated.  Import GNULIB fix  for  regex:  fix  integer-
overflow         bug in never-used code.          Problem report-
ed by Cl'ement  Pit-Claudel  in:          http://lists.gnu.org/ar-
chive/html/emacs-devel/2016-12/msg00654.html          Fix by Paul
Eggert  <eggert@cs.ucla.edu>:

        * regex_internal.h: Include intprops.h.          * regex-
ec.c (re_search_2_stub): Use it to avoid undefined         behav-
ior on integer overflow.

        Unrelated. Set up a support directory for externally  ob-
tained         support files.

        *  Makefile.am  (base_sources,  EXTRA_DIST):  Edit lists.
        (SUBDIRS): Get ordering right.          (LDADD): Add sup-
port/libsupport.a.          (DEFS): Add -I for support directory.
        *   dfa.c,   dfa.h,   getopt.c,   getopt.h,    getopt1.c,
getopt_int.h,           intprops.h,  localeinfo.c,  localeinfo.h,
random.c,   random.h,           regcomp.c,   regex.c,    regex.h,
regex_internal.c,  regex_internal.h,         regexec.c, verify.h,
xalloc.h: Moved to support.

        Unrelated: Totally break binary compatibility in the  API
        after merging in API min/max changes and REGEX and STRNUM
        support in the API:

        *     gawkapi.c     (valtype2str):     New      function.
        (node_to_awk_value):  Minor  simplification  in a switch.
        (api_flatten_array):  Removed.           (api_flatten_ar-
ray_typed):  Use  valtype2str in error message.          (api_im-
pl): Reorder functions to  group  related  ones  together  again.
        *   gawkapi.h   (awk_valtype_t):   Reorder  enum  values.
        (struct gawk_api): Remove api_flatten_array  field.   Re-
order         functions to group related ones together again.

2016-12-17         Arnold D. Robbins     <arnold@skeeve.com>

        *  gawkapi.h  (api_add_ext_func): Add comment about point
to         awk_ext_func_t not being const but  gawk  doesn't  use
it.           *  *  interpret.h  (Op_ext_builtin): Simplify code,
check only         if do_lint and ! f->suppress_lint and num_args
> max_expected.

2016-12-16         Arnold D. Robbins     <arnold@skeeve.com>

        *  gawkapi.h  (awk_ext_func_t):  Put max back before min.
Restores         source compatibility,  although  there  will  be
compile  warnings          because  of the 3rd argument for the C
function being missing.          * interpret.h  (Op_ext_builtin):
Used size_t instead of int for         the various variables. Add
a check that max expected > 0.

2016-12-14         Arnold D. Robbins     <arnold@skeeve.com>

        MAJOR BREAKING API CHANGE.

        * awk.h (INSTRUCTION): Update extension function  pointer
to          take  3rd argument of pointer to struct awk_ext_func.
        * gawkapi.c (api_add_ext_func): Update third arg  to  not
be  const.           * gawkapi.h (awk_ext_func_t): Put min before
max.    Add    suppress_lint            and     data     pointer.
        [gawk_api_major_version]:        Update       to       2.
        [gawk_api_minor_version]:       Reset        to        0.
        (api_add_ext_func):  Update  third  arg  to not be const.
        * interpret.h (Op_ext_symbol): Revise lint check.

2016-12-12         Arnold D. Robbins     <arnold@skeeve.com>

        * awk.h (INSTRUCTION): Replace min_required  and  max_ex-
pected           with   a  pointer  to  the  extension  functions
awk_ext_func_t struct.          * ext.c (make_builtin):  Store  a
pointer  to  the  extension  function         struct into the IN-
STRUCTION instead  of  the  min  and  max.           *  gawkapi.h
(awk_ext_func):   Use   size_t   instead   of   unsigned   short.
        Put min second, which preserves source code  compatibili-
ty.           * interpret.h (Op_ext_builtin): Use the pointer for
the info         directly. If lint and max_expected > 0 and  args
>  max_expected          print  a message and set max_expected to
zero so we only print once         per function.  Remove  special
case  of both min and max being zero.          (Op_ext_func): Ad-
just creation of the data structures.

2016-12-11         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c: Sync with GNULIB.

2016-12-05         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        Add  API  support for strnum values.          * gawkapi.c
(awk_value_to_node):  Add  AWK_STRNUM.           (assign_string):
Add  a type argument so we can use this for AWK_STRING         or
AWK_STRNUM.          (node_to_awk_value): When AWK_NUMBER is  re-
quested,  a  regex  value         should return false, as per the
header file documentation.          Add  support  for  AWK_STRNUM
requests. When AWK_REGEX is requested,         implement the cas-
es  properly  instead  of  always  returning  true.           Fix
AWK_SCALAR  logic.  For  AWK_UNDEFINED,  rewrite  using  a switch
        and support  AWK_STRNUM.           (api_sym_update):  Add
AWK_STRNUM.           (api_sym_update_scalar): Add optimized sup-
port for  updating  AWK_STRNUM.           (valid_subscript_type):
Add   AWK_STRNUM.           (api_create_value):  Add  AWK_STRNUM.
        *    gawkapi.h    (awk_valtype_t):    Add     AWK_STRNUM.
        (strnum_value):  New  macro.          (Value fetching ta-
ble): Updated.

2016-12-04         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  gawkapi.c  (assign_regex):  Do not call assign_string,
since we         know that a REGEX value is not  an  unterminated
field  string.           *  gawkapi.h (make_regex): Delete macro.
        (make_const_regex, make_malloced_regex): Add  new  macros
to  replace          make_regex  with necessary memory management
support.

2016-12-04         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  awk.h  (fixtype):  Remove  conditional checking if the
node type         is Node_val. This is already covered by the as-
sert,  and  if  it's  not          true,  we  have  serious bugs.
        * builtin.c (do_typeof): Do not treat Node_var  the  same
way  as         Node_val, since they are different beasts. In re-
ality, the argument         to this function will never have type
Node_var.

2016-12-04          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        *  gawkapi.h  (awk_element_t):  Remove  obsolete  comment
claiming   that          the  index  will  always  be  a  string.
        (gawk_api_t): Add  new  api_flatten_array_typed  function
and  indicate         that api_flatten_array has been superseded.
        (flatten_array_typed): New macro to call  api_flatten_ar-
ray_typed.          (flatten_array): Redefine using the new flat-
ten_array_typed  macro.           *  gawkapi.c   (api_flatten_ar-
ray_typed):  New  function renamed from         api_flatten_array
to flatten an array with the types requested by the         call-
er.    Also    update    the   comments   and   error   messages.
        (api_flatten_array): Now a wrapper around api_flatten_ar-
ray_typed.           (api_impl):  Add new api_flatten_array_typed
hook.

2016-12-06         Arnold D. Robbins     <arnold@skeeve.com>

        Add minimum required and maximum expected number of argu-
ments         to the API.

        *  awk.h  (INSTRUCTION): Add new members min_required and
max_expected.          * ext.c (make_builtin): Store values  from
extension   function   struct           into   the   INSTRUCTION.
        * gawkapi.h (awk_ext_func): Add min_required  args.  Make
both  it  and          max_expected_args  into  unsigned short to
match    type    in    INSTRUCTION.             *     interpret.h
(Op_ext_builtin):  Store min_required and max_expected         in
instructions.   Add    checking    code    and    lint    checks.
        (Op_ext_func):  Copy  min_required  and max_expected from
function info.

2016-12-04         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  gawkapi.h (r_make_string_type): New inline function to
create strings          of  any  type,  currently  AWK_STRING  or
AWK_REGEX.            (r_make_string):   Now   a  wrapper  around
r_make_string_type.          (make_regex): Convert from an inline
function to a macro that         calls r_make_string_type.

2016-11-30         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c: Sync with fixes in GNULIB.

        Unrelated:

        * gawkapi.h (make_regex): New function.

2016-11-29         Arnold D. Robbins     <arnold@skeeve.com>

        Add support for typed regex variables to the API.

        *  awk.h (make_typed_regex): Declare function.          *
awkgram.y  (typed_regexp):  Call  make_typed_regex   instead   of
        using  inline code.          * gawkapi.h (AWK_REGEX): New
value type.          (regex_value):  New  macro.           (Value
fetching   table):   Updated.            *   gawkapi.c  (awk_val-
ue_to_node,          node_to_awk_value,           api_sym_update,
        api_sym_update_scalar,   valid_subscript_type,   api_cre-
ate_value):          Add  support  for  AWK_REGEX.           (as-
sign_regex):  New  function.          (api_flatten_array): Adjust
comment.           *  node.c  (make_typed_regex):  New  function;
moved code from grammar.

2016-11-29         Arnold D. Robbins     <arnold@skeeve.com>

        Remove redundant flag from dfa:

        *    dfa.c   (dfasyntax):   Use   RE_ICASE   instead   of
DFA_CASE_FOLD.            *   dfa.h   (DFA_CASE_FOLD):   Removed.
        *  re.c  (make_regexp):  Use  RE_ICASE for regex and dfa.
Yay!

        Unrelated: Don't have to  recompute  syntax  stuff  every
time         we compile a regexp.

        *  dfa.c  (dfacopysyntax): New function.          (dfaal-
loc): Zero out the newly allocated memory.          * dfa.h (dfa-
copysyntax):  Declare  it.          * re.c (make_regexp): Declare
two static dfaregs, one for         with and without  ignorecase.
Compute  the syntax once for each,         then use dfacopysyntax
to copy the settings when compiling         a regexp.

2016-11-28         Arnold D. Robbins     <arnold@skeeve.com>

        Make gawk compile on HP-UX 11.33.

        * debug.c  (serialize_list):  Renamed  from  `serialize'.
        (unserialize_list):  Renamed from `unserialize', for con-
sistency.

        Unrelated:

        * dfa.c: Sync with GNULIB. Twice in one day.

        Unrelated:  Start  improving   profiling   comments   for
switch/case.

        * awkgram.y (switch_head): New production.

2016-11-21         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c: Sync with GNULIB.

2016-11-17         Arnold D. Robbins     <arnold@skeeve.com>

        General cleanup for zero termination of strings.

        *  array.c  (do_delete): Use %.*s.          (value_info):
Get length and use %.*s.          (asort_actual):  Save  and  re-
store  character after end.          * awkgram.y (split_comment):
Use  make_string,   not   make_str_node.            *   builtin.c
(do_fflush):  Use  %.*s.          (locale_category_from_argument,
do_dcgettext, do_dcngettext,         do_bindtextdomain): Save and
restore   character   after  end.           *  debug.c  (do_info,
print_array, print_subscript,  do_print_var,          do_set_var,
display,    do_watch,    print_watch_item,   serialize_subscript,
        do_print_f):  Use  %.*s.           *  eval.c  (cmp_nodes,
fmt_index):  Save and restore character after end.          * in-
terpret.h (r_interpret): Fix  computation  for  concatenation  of
        wide  strings.           *  io.c (is_non_fatal_redirect):
Add length parameter; save and          restore  character  after
last.     Adjust    all    other    declarations    and    calls.
        (do_close):  Save  and  restore  character   after   end.
        *   mpfr.c   (ieee_fmts):   Adjust   table   indentation.
        (do_mpfr_strtonum): Clear  wide  string  members  of  the
union.          * msg.c (err): Use %.*s.

2016-11-07         Arnold D. Robbins     <arnold@skeeve.com>

        *  awk.h [USER_INPUT]: Renamed from MAYBE_NUM.          *
builtin.c,   eval.c,   field.c,   int_array.c,   io.c,    main.c,
        mpfr.c, node.c: Change all uses.

2016-11-15         Arnold D. Robbins     <arnold@skeeve.com>

        Finish reworking typed regexes.

        *  awk.h  (typed_re):  Replaces  tre_reg.          * awk-
gram.y (typed_regexp production): Node_val points  to  a  regular
        Node_regex   and   also  has  string  value  and  length.
        (make_regnode): Simplified back  to  its  original  form.
        *  builtin.c (call_sub, call_match, call_split_func): For
REGEX,         get  n->typed_re.           *  field.c  (do_split,
do_patsplit):  Ditto,  for separator regexp.          * profile.c
(pprint): Op_match_rec, handle REGEX correctly.           *  re.c
(re_update): If REGEX, get t->typed_re->re_reg.

2016-11-15         Arnold D. Robbins     <arnold@skeeve.com>

        Start reworking typed regexes.

        *  awk.h  (Node_typedregex): Nuked.          [REGEX]: New
flag.          (tre_reg): New member in val part of  NODE  union.
        (force_string,  force_number,  fixtype):  Remove  use  of
Node_typedregex.          * awkgram.y (grammar): Use  REGEX  flag
instead     of     node    type.             (valinfo);    Ditto.
        (make_regnode):  Adjust  creation  based  on  node  type.
        *  builtin.c  (do_length, do_print, call_sub, call_match,
        call_split_func, do_typeof): Adjust code.          *  de-
bug.c        (watchpoint_triggered,        initialize_watch_item,
        print_memory):  Adjust  code.           *  eval.c  (node-
types):  Remove Node_typedregex.          (flags2str): Add REGEX.
        (setup_frame): Adjust code after  removal  of  Node_type-
dregex.           *  interpret.h (r_interpret): Adjust code after
removal           of   Node_typedregex.            *    profile.c
(pp_typed_regex):       Renamed       from       pp_strong_regex.
        (pp_string_or_strong_regex):         Renamed         from
pp_string_or_strong_regex.           (pprint):  Adjust code after
removal of Node_typedregex.          * re.c  (re_update):  Adjust
code after removal of Node_typedregex.

2016-11-04  Eli Zaretskii  <eliz@gnu.org>

        *     builtin.c     (efwrite)     [__MINGW32__]:     Call
w32_maybe_set_errno if         errno is not set or set to EINVAL.

        *  nonposix.h  (w32_maybe_set_errno)  [__MINGW32__]:  Add
prototype.

2016-11-01         Arnold D. Robbins     <arnold@skeeve.com>

        * eval.c (flags2str): Add NO_EXT_SET and NUMCONSTSTR.

2016-10-31         Arnold D. Robbins     <arnold@skeeve.com>

        Fix valgrind issues.

        * io.c (init_awkpath): Need to allocate max_path+3 point-
ers.          * awkgram.y (make_profile_number): Need to add STR-
CUR  flag  and         set n->stfmt to STFMT_UNUSED. See the com-
ment in the code.

2016-10-26         Arnold D. Robbins     <arnold@skeeve.com>

        * io.c (init_awkpath): Set max path len for leading sepa-
rator.

2016-10-25         Arnold D. Robbins     <arnold@skeeve.com>

        * io.c (init_awkpath): Restore documented behavior where-
by         null elements represent the current directory. Sheesh.
        Bug reported by "Jun T." <takimoto-j@kba.biglobe.ne.jp>.

        Disallow negative arguments to the bitwise functions.

        *  NEWS:  Document this.          * builtin.c (do_lshift,
do_rshift, do_and, do_or, do_xor, do_compl):          Make  nega-
tive  arguments  a fatal error.          * mpfr.c (do_mpfr_compl,
get_intval): Ditto.

2016-10-23         Arnold D. Robbins     <arnold@skeeve.com>

        * General: Remove trailing whitespace from  all  relevant
files.           *  mpfr.c: Replace Unicode sequences with ASCII.
        * cint_array.c: Ditto.

2016-10-16         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y: Typo fix in call to add_sign_to_num.

2016-10-16         Arnold D. Robbins     <arnold@skeeve.com>

        * awk.h (enum opcodeval): Add  Op_unary_plus.           *
awkgram.y  (add_sign_to_num):  New  routine  to  put in a sign on
        profiling constants.  Call it as  necessary.           In
unary  plus  production, use new opcode, or set up a         con-
stant   as   for   unary   minus.            (negate_num):   Call
add_sign_to_num  instead  of doing it directly.          * eval.c
(optypetab): Add entry for Op_unary_plus.          *  interpret.h
(r_interpret):  Add  case for Op_unary_plus.          * profile.c
(pprint, prec_level, is_scalar): Ditto.

2016-10-13         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c: Sync with GNULIB.

2016-10-12         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y (make_profile_number): Allocate an extra byte
for the         string, so there's room for a minus if necessary.
Store ' '         in the right place.          (negate_num):  Use
memmove  to  shift the string up and then         insert a minus,
instead of doing a fresh alloc + copy + free.

2016-10-11         Arnold D. Robbins     <arnold@skeeve.com>

        * awk.h (NUMCONSTSTR): New flag  value.           *  awk-
gram.y  (make_profile_number): New function. Use it         wher-
ever we make a number.   This  calls  make_number  and  then,  if
        pretty  printing, save the original string value and sets
NUMCONSTSTR.          (negate_num): If  NUNCONSTSTR  set,  update
the  saved string value.          * profile.c (pp_number): Assert
NUMCONSSTR set, use that value.          Remove previous code.

2016-09-24  Eli Zaretskii  <eliz@gnu.org>

        * debug.c (restart) [__MINGW32__]: Cast 2nd  argument  of
execvp  to          avoid  compiler warnings about prototype mis-
match.   Reported  by          Marc   de   Bourget   <marcdebour-
get@gmail.com>.

2016-09-09         Norihiro Tanaka      <noritnk@kcn.ne.jp>

        *  awk.h  (struct Regexp): Remove member has_anchor.  All
uses removed.          * re.c (make_regexp,  research):  Use  dfa
matcher for regex with anchor.

2016-09-09         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c: Sync with grep.

2016-09-08  Paul Eggert  <eggert@cs.ucla.edu>

        *   dfa.c,   dfa.h:   Sync  with  grep.           *  re.c
(make_regexp): Adjust to DFA API changes.

2016-09-08         Arnold D. Robbins     <arnold@skeeve.com>

        * command.y: Update license text to version 3. Oops.

2016-09-07         Arnold D. Robbins     <arnold@skeeve.com>

        * cmd.h, debug.c: Update license text to  version  citing
        GPLv3+   and   with   correct   FSF  address.  Thanks  to
        David Kaspar <dkaspar@redhat.com> for  pointing  out  the
need.

2016-09-02         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c: Sync with grep.

2016-09-01         Arnold D. Robbins     <arnold@skeeve.com>

        Merge grep's now thread-safe dfa. Wheee.

        *  dfa.h, dfa.c: Sync with grep.          * localeinfo.h,
localeinfo.c,  verify.h:  New   files.            *   Makefile.am
(base_sources):  Adjust.           *  awk.h (using_utf8): Declare
new function.          * node.c (str2wstr):  Use  using_utf8  in-
stead of now-gone dfa function.          * re.c: Include "locale-
info.h".             (localeinfo):    New    static     variable.
        (make_regexp):  Adjust  call to dfa_syntax.          (re-
setup):  Call  init_localeinfo  on  localeinfo.  Remove  call  to
        now-gone  function  dfa_init.           (using_utf8): New
function.

2016-08-29         Arnold D. Robbins     <arnold@skeeve.com>

        *   configure.ac   (fwrite_unlocked):   Check   for   it.
        *  awk.h  (fwrite):  Define to fwrite_unlocked if we have
it.          * NEWS: Make note of speed improvement.

2016-08-25         Arnold D. Robbins     <arnold@skeeve.com>

        POSIX now says use strcmp for == and !=. Thanks  to  Chet
Ramey         for pointing me at the change.  Make it so:

        * awk.h (cmp_nodes): New 3rd param indicating strcmp, not
strcoll.          * debug.c (cmp_val): Update call to  cmp_nodes.
        *  eval.c  (cmp_nodes):  New 3rd param indicating strcmp,
not   strcoll.            Adjust   code    and    all    callers.
        (scalar_cmp_t):    New    enum    type.   Used   in   ...
        (cmp_scalars): ... in order to call cmp_nodes  correctly.
        * interpret.h: Use the enum type in calls to cmp_scalars.
        * re.c (re_update): Adjust call to cmp_nodes.

2016-08-25         Norihiro Tanaka      <noritnk@kcn.ne.jp>

        * awk.h (struct Regexp): Remove dfa.  Now dfareg  instead
of it.  All         referers changed.          * re.c (research):
Arrange caller of dfaexec and research.           *  (avoid_dfa):
Removed.   All callers changed.          * awk.h (avoid_dfa): Re-
moved.

        Other changes by Arnold Robbins:

        * awk.h (struct Regexp): Change various  boolean  members
to  bool.           (RE_NO_FLAGS): New #define.          * inter-
pret.h: Use RE_NO_FLAGS instead of  zero.           *  re.c  (re-
search): Prettify the logic a little bit.

2016-08-25         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c: Sync with grep.

2016-08-25         Arnold D. Robbins     <arnold@skeeve.com>

        * 4.1.4: Release tar ball made.

2016-08-23         Arnold D. Robbins     <arnold@skeeve.com>

        *  dfa.h:  Sync with grep. API changes.          * dfa.c:
Sync with grep.          * re.c  (make_regexp):  Adjust  for  API
changes, move call to dfasyntax         into stanza that compiles
the regex.          (resetup): Call dfa_init.           *  node.c
(str2wstr): using_utf8 is now called dfa_using_utf8.

        Unrelated:

        *  Makefile.am:  Quote  all uses of $(srcdir) and $(dist-
dir).          (spell): New target.

2016-08-18         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c: Sync with grep.

2016-08-15         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  int_array.c  (is_integer): Fix merge of stable changes
to remove         obsolete string formatting check that has  been
superseded by         the new standard_integer_string check.

2016-08-14         Arnold D. Robbins     <arnold@skeeve.com>

        * re.c (make_regexp): Only call dfasyntax if actually us-
ing          dfa.   Gives   a   14%   speedup   on   this   test:
https://raw.githubusercontent.com/chadbrewbaker/awka/mas-
ter/benchmark/regexp.awk.              From     blathering     in
comp.lang.awk.

2016-08-12         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c: Sync with GNU grep.

        Unrelated:

        * int_array.c: Minor text and formatting edits.

2016-08-09          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * awk.h: Add a comment explaining the NUMINT flag in more
detail.           *  int_array.c  (standard_integer_string):  New
function to test whether         a string matches what  would  be
produced  by  sprintf("%ld", <value>).          (is_integer): Fix
bug -- if NUMBER was set, then the function was         accepting
strnum   values   with  nonstandard  string  representations.  We
        now call standard_integer_string to check that the string
looks OK.          Also added ifdef'ed code to simplify the func-
tion by relying upon         force_number to  parse  the  string,
but this is disabled due to possible         negative performance
impact.

2016-08-03         Arnold D. Robbins     <arnold@skeeve.com>

        Remove typed regexes until they can be done properly.

        * NEWS: Updated.          * awk.h (enum nodevals): Remove
Node_typedregex.           (force_string,  force_number):  Remove
check for Node_typedregex.          *  awkgram.y  (TYPED_REGEXP):
Remove  token.           (grammar): Remove productions related to
typed regexps.          (yylex): Don't find a typed regex or  re-
turn  it.           (valinfo):  Remove  code for Node_typedregex.
        * builtin.c (do_length, do_print,  call_sub,  call_match,
        call_split_func,  do_typeof):  Remove code for Node_type-
dregex.          * debug.c (watchpoint_triggered,  print_memory):
Remove code         for Node_typedregex.          * eval.c (node-
types, setup_frame): Remove code for Node_typedregex.           *
interpret.h   (r_interpret):  Remove  code  for  Node_typedregex.
        * profile.c (pprint): Remove  code  for  Node_typedregex.
        (pp_strong_regex):                               Removed.
        (pp_string_or_strong_regex): Remove code  for  Node_type-
dregex.           *  re.c (re_update): Remove code for Node_type-
dregex.

2016-08-01         Arnold D. Robbins     <arnold@skeeve.com>

        * README, NEWS: Mark DJGPP port as unsupported.

2016-08-01         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  mpfr.c  (mpg_tofloat):  Always  set precision to avoid
hysteresis effects         from previous calculations  using  the
same temporary mpfr variables.

2016-08-01          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * mpfr.c (default_prec): Add new static variable to  show
current  PREC          setting  in  effect.           (init_mpfr,
set_PREC): Save  mpfr_set_default_prec  argument  in          de-
fault_prec.           (do_mpfr_func): If the argument's precision
exceeds the default         precision, boost the result's  preci-
sion  to match it. This fixes a         bug where we used to copy
the argument's precision, regardless of          whether  it  was
higher or lower than the PREC setting.

2016-07-24         Norihiro Tanaka      <noritnk@kcn.ne.jp>

        *  re.c  (research):  Now  that the dfa matcher correctly
runs even          in  multibyte  locales,  try  it  if  even  if
need_start  is  true.           However,  if start > 0, avoid dfa
matcher, since it can't handle         the case where the  search
starts in the middle of a string.

        Unrelated:

        * eval.c (load_casetable): Reset casetable[i] to `i' if i
        should not be mapped to upper case. Fixes inconsistencies
between          dfa  and regex in some single bytes locales; no-
tably el_GR.iso88597.

2016-07-23         Arnold D. Robbins     <arnold@skeeve.com>

        Make result of close on a pipe match  result  of  system.
        Thanks to Mike Brennan for the encouragement.

        *    awk.h   (sanitize_exit_status):   Declare   routine.
        *   builtin.c   (sanitize_exit_status):   New    routine.
        (do_system):  Use  it.          * io.c (close_rp): Use it
on pclose result.          (gawk_pclose): Use it.

2016-07-23         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  builtin.c  (do_print):  Improve  logic  for formatting
        numeric values.

2016-07-19         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        * eval.c (set_LINT): Simplify the code considerably.

2016-07-19         Arnold D. Robbins     <arnold@skeeve.com>

        *  awkgram.y  (shadow_funcs):  Change  test  at end to be
        `lintfunc == r_fatal' instead of `lintfunc  !=  warning'.
        Thank to Andrew Schorr for the suggestion.

2016-07-18         Arnold D. Robbins     <arnold@skeeve.com>

        *  main.c  (locale_dir):  New variable, init to LOCALEDIR
(set  by          configure).           (set_locale_stuff):  Move
calls to bindtextdomain and         textdomain to here; they must
be done after calling setlocale.          Use locale_dir  instead
of LOCALEDIR.          (main): Move call to set_locale_stuff() to
before parsing arguments.          Check for GAWK_LOCALE_DIR  env
var  and use it if there. If doing         locale debugging, call
set_locale_stuff again if arg parsing changed         the locale.

        Unrelated:

        * dfa.c: Sync with GNU grep.

        Unrelated:

        * config.sub: Updated from GNULIB.

2016-07-17         Arnold D. Robbins     <arnold@skeeve.com>

        * eval.c (set_LINT):  Reset  lintfunc  to  `warning'  for
LINT="invalid".          Thanks to Andy Schorr for the report.

2016-07-08          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * awk.h:  Restore  previous  comment  about  unterminated
strings,  since          I  am  removing  the  string termination
patches from  field.c          (free_api_string_copies):  Declare
new  gawkapi  function.           * builtin.c (do_mktime, do_sys-
tem): Restore temporary  string          termination  to  protect
against  unterminated field values.          (nondec2awknum): Re-
move comment about  unnecessary  termination.           *  eval.c
(posix_compare): Restore temporary string termination.          *
field.c   (databuf):   Remove   struct,   no    longer    needed.
        (set_field):  Remove memcpy for string termination, since
we  will  support          unterminated  field   string   values.
        (rebuild_record):  Ditto.  Also no need to allocate space
for    terminated            string    copies.             (allo-
cate_databuf): Remove function, since memory management can again
        be done inside set_record.          (set_record): Restore
inline  buffer  management logic.          (reset_record): Remove
calls to allocate_databuf, since we no longer         need  space
for   making  terminated  copies  of  field  strings.           *
gawkapi.c (free_api_string_copies): New function to free  strings
        that  we  made  to provide terminated copies to API func-
tions.          (assign_string): New function to convert a string
to  an  awk_value,          making  sure to copy it if we need to
terminate it.          (node_to_awk_value): Use assign_string  to
return  string  values  with          NUL termination protection.
        * int_array.c (is_integer): Restore temporary string ter-
mination.              *    interpret.h    (Op_push_i):    Ditto.
        (Op_ext_builtin): After external function  returns,  call
        free_api_string_copies  to  free temporary string copies.
        * mpfr.c (force_mpnum): Restore temporary string termina-
tion.           *  node.c  (r_force_number,  get_ieee_magic_val):
Ditto.

2016-07-08         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c: Sync with GNU grep.

        Unrelated:

        *  builtin.c  (do_print):  Coding  style  change.   (This
change  obsoleted          by  earlier  changes  in  the  fixtype
branch.)

2016-07-06         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  awk.h: Modify comments to indicate that MAYBE_NUM will
now be         left enabled to indicate strnum values by the NUM-
BER|MAYBE_NUM         combination, whereas STRING|MAYBE_NUM indi-
cates a potential strnum.           (fixtype):  Modify  MAYBE_NUM
test  to  avoid calling force_number if         NUMCUR is already
set.          * builtin.c (do_typeof): Call  fixtype  to  resolve
argument  type.           This forces parsing of numeric strings,
so there's a performance         penalty, but we must do this  to
give  a  correct  result. The meaning         of "strnum" changes
from "potential strnum" to  "actual  strnum".           *  eval.c
(set_TEXTDOMAIN):  Remove  some  dead  code  left  over from last
        patch.           *  int_array.c  (is_integer):   When   a
MAYBE_NUM  is  converted  successfully         to a NUMBER, leave
the MAYBE_NUM flag enabled.          * mpfr.c (mpg_force_number):
Ditto.          * node.c (r_force_number): Ditto.

2016-07-06          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * awk.h:  Modify  stptr  comment  to  indicate  that  all
strings  are  now          NUL-terminated.           *  builtin.c
(do_mktime): Remove unnecessary logic  to  terminate          the
string   with   ' '   temporarily.            (do_system)  Ditto.
        (nondec2awknum):  Add  a   comment   about   termination.
        *  eval.c  (posix_compare):  Remove  logic  to  terminate
strings temporarily.          (set_ORS):  No  need  to  terminate
ORS,  since  the  string node is already         terminated. What
gave us the right to modify that node  anyway?           (fmt_in-
dex):  Remove  code  to terminate string. This seems to have been
        invalid  anyway,  since  we  don't   own   that   memory.
        (set_TEXTDOMAIN):  Do  not  terminate  TEXTDOMAIN string,
since the node         is already terminated. We didn't have  the
right  to  modify  that node         anyway.          * gawkapi.c
(node_to_awk_value):  Add  assert  checks  to  confirm  that  the
        string  is  NUL-terminated.           * gawkapi.h: Modify
awk_string comment to indicate that  strings  are          always
terminated  with  ' '.          * int_array.c (isinteger): Remove
unnecessary logic to terminate string         with ' '  temporar-
ily.           *  interpret.h (Op_push_i): Ditto.          * io.c
(nextfile): Remove string termination. We didn't own that  memory
        anyway.           * mpfr.c (force_mpnum): Remove unneces-
sary logic to terminate the         string with ' '  temporarily.
        *  node.c (r_force_number): Remove NUL termination around
strtod call,         since we already know that there is either a
white  space or ' '         character there. Either one will stop
strtod.           (get_ieee_magic_val):  Ditto.           *  pro-
file.c  (pp_number):  No  need  to  terminate  string returned by
        r_format_val.

2016-07-06         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        * interpret.h (Op_field_spec): Now that all $n field val-
ues are         NUL-terminated, there is no reason to call  dupn-
ode  for  $n  where n > 0.          This saves malloc and copying
overhead, thereby more than  offsetting  the          performance
hit   of  the  additional  copying  and  NUL-termination  in  the
        last patch to field.c. It also eliminates repeated  pars-
ing  in cases         where $n, for n > 1, was accessed more than
once in a numeric context,         so the new approach should  be
a performance win.

2016-07-06          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        Make sure  that  all  field  values,  and  therefore  all
strings inside gawk,         are terminated with a ' ' character!

        * field.c (databuf): New static struct to hold info about
our  buffer  to          contain   the   field   string   values.
        (allocate_databuf): New function to make sure the databuf
is large         enough to hold $0 and copies of $1 through  $NF.
        (set_field): Copy $n into free space previously allocated
in databuf         and  add  a  ' '  at  the  end.           (re-
build_record):  Call  allocate_databuf to ensure sufficient space
        for copying non-malloced field values. When copying field
values,          use  databuf  to  create  a NUL-terminated copy.
        (purge_record): New function extracted from  reset_record
to   initialize           $1   through   $NF   to   null  values.
        (set_record):  Buffer  management  moved  to  new   allo-
cate_databuf  function.          Call purge_record instead of re-
set_record, since reset_record contains         some extra  logic
not   needed   in   this   case.            (reset_record):  Call
purge_record to do most  of  the  work,  and  call          allo-
cate_databuf  to make sure we have a big enough buffer to contain
        copies of the $1 through $NF.

2016-07-06         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  awk.h: Renumber flags to remove gap created when FIELD
was removed.

2016-07-05         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        * field.c (rebuild_record): Need to set MALLOC flag if we
allocate         memory for a residual field node with  valref  >
1.

2016-07-05          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * field.c (rebuild_record): Do not bother to  create  new
field  nodes          to  replace malloc'ed nodes when rebuilding
$0.

2016-07-05         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  awk.h (FIELD): Remove unnecessary flag.          (MAL-
LOC): Move definition to join the others, and  improve  the  com-
ment.           *  array.c  (value_info): Replace FIELD test with
MALLOC test.          * eval.c (flags2str):  Remove  FIELD  flag.
        *   field.c   (init_fields):   Remove   FIELD   bit  from
Null_field->flags.          (set_field): Remove  FIELD  bit  from
flags.           (rebuild_record): Test against MALLOC instead of
FIELD. If a field         node has valref > 1, we should  make  a
copy, although I don't think         it is valid for this to hap-
pen.           (set_record):  Remove  FIELD   bit   from   flags.
        *  interpret.h  (UNFIELD):  Add  comment, and test MALLOC
flag instead of         FIELD. Remove probably buggy code to dis-
able  the  FIELD  flag  when         valref is 1; that would have
created a node where neither the FIELD          nor  MALLOC  flag
was  set, which seems invalid.          * node.c (r_dupnode): Re-
move code disabling FIELD flag.

2016-07-04         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  awk.h  (force_string_fmt):  New inline function to get
the  string          representation  in   a   requested   format.
        (force_string):    Reimplement    as    a   macro   using
force_string_fmt  function.            (force_string_ofmt):   New
macro  to get a value's OFMT representation.          * builtin.c
(do_print):  Use   new   force_string_ofmt   macro   instead   of
        duplicating the logic inline.

2016-07-04          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * str_array.c (str_lookup): There is  no  need  to  worry
about the         MAYBE_NUM flag, since the code has been patched
to make sure to         preserve the string value of strnum  val-
ues,  and the integer array         code should no longer mistak-
enly claim a strnum integer  with  a          nonstandard  string
representation.

2016-07-03          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * field.c (rebuild_record): Revert  warning  message  re-
garding  flags,          since I'm not yet totally confident that
it is invalid to have FIELD         and MALLOC set  at  the  same
time.

2016-07-03          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * field.c (rebuild_record): Do not turn  off  the  STRING
flag  when          copying  a FIELD node, and issue a warning if
MALLOC is enabled.

2016-07-01         Arnold D. Robbins     <arnold@skeeve.com>

        * array.c (value_info): Print something  reasonable  when
stfmt          is  -1.           * mpfr.c (mpg_format_val): Don't
cast index to  char.           *  node.c  (r_format_val):  Ditto.
        Thanks to Andrew Schorr for pointing these out.

        Unrelated:

        *   gawkapi.c  (api_warning):  Fix  the  comment  header.
        (api_lintwarn): Factor out the call to  va_end  to  after
the if.

        Unrelated:

        *  symbol.c  (get_symbols): Add FUNCTAB and SYMTAB to the
list         for the -d option.          * awkgram.y (dump_vars):
Allow  "-"  to  mean  print to stdout.          Thanks to Hermann
Peifer for the reports.

2016-06-30         Arnold D. Robbins     <arnold@skeeve.com>

        * node.c (r_force_number): Coding style change.

2016-06-30         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  awk.h  (STFMT_UNUSED):  New define indicating that the
string         representation does not depend on CONVFMT or OFMT.
        (force_string): Use STFMT_UNUSED to improve code clarity.
        *  array.c  (value_info):  Fix  stfmt  logic.           *
builtin.c  (do_print):  Use STFMT_UNUSED to improve code clarity.
        *  field.c  (set_record):  Ditto.           *   gawkapi.c
(api_sym_update_scalar):  Ditto.          * int_array.c (is_inte-
ger): Check stfmt equals STFMT_UNUSED before         bothering to
inspect  the  string.           *  mpfr.c  (mpg_format_val):  Use
STFMT_UNUSED to improve code clarity.          Remove buggy  cast
to  char  in  stfmt assignment.          * node.c (r_format_val):
Ditto.          * str_array.c (str_lookup): Use  STFMT_UNUSED  to
improve  code  clarity.           * symbol.c (check_param_names):
Ditto.

2016-06-29         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  node.c  (r_force_number): Optimize by trimming leading
and trailing         white space before  we  inspect  the  string
contents.            (get_ieee_magic_val):   Must  terminate  the
string with ' ' before         calling strtod.

2016-06-27         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        * gawkapi.h (awk_string): Add comment about the potential
lack of         NUL-termination.

2016-06-27         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  awk.h:  Add  a comment regarding the potential lack of
NUL-termination         for Node_val strings.

2016-06-27         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  node.c (r_format_val): Do not free stptr unless STRCUR
is set.          This is safer than testing for  non-NULL  stptr,
since,  for  example,          pp_number  copies a node and calls
r_format_val, but does not bother         to set  stptr  to  NULL
beforehand.

2016-06-26          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * node.c (r_force_number):  When  checking  for  trailing
spaces,  protect          against  running  off  the  end  of the
string.          * mpfr.c (force_mpnum): Ditto.

2016-06-26         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  builtin.c  (do_print):  There's  actually no reason to
test whether a         value is a number, since the  STRCUR  flag
and  stfmt  value  contain  all         the necessary info, as in
awk.h:force_string.

2016-06-26         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  builtin.c  (do_print): Do not use OFMT to print strnum
values. We         accomplish this by calling  format_val  for  a
NUMBER only         if there is no string currently available, or
if stfmt equals         neither -1 nor OFMTidx.

2016-06-26         Arnold D. Robbins     <arnold@skeeve.com>

        * awk.h: Edit some comments.  Add  others.  Minor  coding
style changes.          * builtin.c (format_tree): Restore a com-
ment.          (do_mktime): Restore saving/restoring of byte  af-
ter  format  string.          (do_sub): Coding style. Use %.*s in
warning message.          (nondec2awknum): Restore saving/restor-
ing   of   byte   after  string  value          being  converted.
        * eval.c: Minor coding style  edits.           *  int_ar-
ray.c  (is_integer): Fix order of checks for not         updating
string  value:  check  length  ==  0   before   testing   values.
        Coding style edits.          * mpfr.c (do_mpfr_strtonum):
Coding style edits.          * node.c  (r_force_number):  Restore
saving/restoring  of  byte  after         string value being con-
verted. Edit comments some.

2016-06-26         Arnold D. Robbins     <arnold@skeeve.com>

        Repair change of 2015-08-25  to  handling  of  MAYBE_NUM.
        *   mpfr.c   (mpg_force_number):  Just  clear  MAYBE_NUM.
        * node.c (r_force_number): Clear STRING separately  after
        setting NUMBER.

        Thanks  to  Andrew  Schorr  for  reporting  the  problem.
        A test case will eventually be merged into master.

        Only in stable and master.

2016-06-20         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  builtin.c  (do_strftime): Call fixtype before checking
flags for         STRING type.          (do_print): Call  fixtype
before  checking  whether argument is a NUMBER.          * eval.c
(set_BINMODE):  Call  fixtype   before   checking   value   type.
        No need to call force_number if the flags say it's a num-
ber.          (r_get_field): Fix lint check for non-numeric argu-
ment.           *  io.c  (redirect): Call fixtype before checking
whether it's a string.

2016-06-18         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        * node.c (r_force_number): Fix typo in comment.

2016-06-16         Arnold D. Robbins     <arnold@skeeve.com>

        *  awk.h:  Add  comment  headers  for  several functions.
        * builtin.c (nondec2awknum): Actually set  a  ' '  before
        calling to strtod() so that the save and restore do some-
thing.

2016-06-15         Arnold D. Robbins     <arnold@skeeve.com>

        * config.sub: Update from GNULIB.

2016-06-14         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  awk.h  (boolval):  New  inline function to standardize
testing  whether          a  node's  value  is  true.           *
builtin.c  (do_strftime):  Use  boolval  to  handle 3rd argument.
        *  eval.c  (set_IGNORECASE,  eval_condition):   Use   new
boolval  function.          * io.c (pty_vs_pipe): Use new boolval
function.

2016-06-14         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  builtin.c  (do_strftime): Fix handling of 3rd argument
to work         as a standard boolean: non-null or non-zero.

2016-06-14         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  gawkapi.c  (node_to_awk_value):  When  caller requests
AWK_SCALAR         or AWK_UNDEFINED, we need to call fixtype  be-
fore we check the type.

2016-06-13          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * awkgram.y: Eliminate STRCUR tests. Must use  STRING  to
test whether         a scalar is a string.

2016-06-12          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>                  * awk.h:  Improve  comment  about
STRING  and NUMBER type assignment.          (nondec2awknum): Add
endptr argument.          (fixtype): New inline function to clar-
ify  a  scalar's  type.           * array.c (sort_up_value_type):
Call fixtype before checking the value         types.           *
awkgram.y  (yylex):  Pass  NULL endptr argument to nondec2awknum.
        (valinfo): Remove dead tests: either STRING or NUMBER  or
both          must  be set, so there's no reason to continue with
checks  for  NUMCUR  or          STRCUR.            *   builtin.c
(do_exp,  do_int,  do_log,  do_sqrt,  do_sin,  do_cos, do_srand):
        Fix    lint    check    for     non-numeric     argument.
        (do_string):  Fix  lint  check for 1st and 2nd args being
strings.          (do_length): Fix assert to allow for Node_type-
dregex.            Fix   lint   check  for  non-string  argument.
        (format_tree): Fix type  detection  for  '%c'  arguments.
        (do_strftime):  Fix  lint check for non-numeric 2nd argu-
ment  and          lint  check  for  non-string   1st   argument.
        (do_mktime):  Fix  lint  check  for  non-string argument.
Eliminate useless         logic to save and  restore  terminating
NUL.          (do_system, do_tolower, do_toupper): Fix lint check
for non-string         argument.           (do_atan2,  do_lshift,
do_rshift,  do_and,  do_or, do_xor, do_compl,         do_intdiv):
Fix lint checks for non-numeric args.          (do_sub):  Attempt
to  clean  up treatment of 3rd argument to gensub         despite
vague documentation of expected  behavior.           (do_strnum):
Fix   bug   in  number  detection  logic,  and  pass  new  endptr
        arg to nondec2awknum.          (nondec2awknum): Add endp-
tr  argument  so caller can detect how much         of the string
was consumed. Eliminate unnecessary logic to save         and re-
store terminating NUL char.          (do_typeof): Use a switch to
specify which cases are supported, and          issue  a  warning
message  when  a  corrupt  type  is  detected.          * debug.c
(print_memory):  At  least  one  of  NUMBER  and  STRING   should
        be set, so no need to check for NUMCUR or STRCUR in addi-
tion.          * eval.c (cmp_nodes): Use fixtype function to  fix
arg  types.           (set_IGNORECASE):  Fix  logic for acting on
value type. Note that         setting IGNORECASE to a string val-
ue  of  "0"  with  NUMCUR  set now enables         ignorecase, so
that's  a  subtle  change  in  behavior  that  seems   to   match
        the docs.          (set_LINT): Try to clean up configura-
tion logic based on type.          * ext.c (get_argument): Remove
unused variable pcount.          * gawkapi.c (node_to_awk_value):
Remove pointless test for NUMCUR         after calling force_num-
ber.  Similarly, no need to test for STRCUR         after calling
force_string.          * int_array.c (is_integer):  Reject  cases
where a string value is         present that will not be correct-
ly regenerated from  the  integer;          in  particular,  this
could  happen where blank space padding is present,         lead-
ing zeroes are present, or for hex or octal values.          Also
fix  some  bugs  where a strnum was converted to a NUMBER without
        turning  off  the  STRING  bit.           *  io.c  (redi-
rect_string):   Make   lint   warning   message   more  accurate.
        (redirect): Change not_string test to use STRING bit, not
STRCUR.           (pty_vs_pipe): Use fixtype to correct logic for
detecting whether a         value is anumber.           *  mpfr.c
(mpg_force_number):   If  NUMCUR  is  set,  there's  no  need  to
        test is_mpg_number. If it's not, the NODE is corrupt  and
we've  got          bigger problems. Fix flag manipulation logic.
Always    set     NUMCUR     and             clear     MAYBE_NUM,
        (set_PREC):    Fix    logic   using   fixtype   function.
        (do_mpfr_atan2, do_mpfr_intdiv): Fix lint check for  non-
numeric          arguments.           (do_mpfr_func, do_mpfr_int,
do_mpfr_compl, get_intval, do_mpfr_srand):         Fix lint check
for  non-numeric  argument.          (do_mpfr_strtonum): Use fix-
type  and  stop  testing  for  NUMCUR  bit.            *   node.c
(r_force_number):   Eliminate   pointless  save  and  restore  of
        terminating  NUL  char.  Always  set  NUMCUR  and   clear
MAYBE_NUM,  and          convert STRING to NUMBER if appropriate,
fixing bugs in flag         manipulations. For non-decimal  data,
need  to  consider  whether there         is trailing non-numeric
data in deciding whether a MAYBE_NUM should         be  converted
to  a NUMBER, so take advantage of new endptr arg         to non-
dec2awknum.

2016-06-14         Arnold D. Robbins     <arnold@skeeve.com>

        * builtin.c (do_sub): Fix sub for long runs of backslash-
es.           Thanks  to  Mike  Brennan for the report.
        Unrelated:         * ext.c (get_argument): Remove  unused
variable pcount.

2016-06-10         Arnold D. Robbins     <arnold@skeeve.com>

        *  config.guess,  config.sub: Get latest from Gnulib mas-
ter.          * main.c (UPDATE_YEAR): Bump to 2016.

2016-06-09         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c: Sync with GNU grep.

        Unrelated:

        *  configure.ac:  Move  AM_CONDITIONAL[ENABLE_EXTENSIONS]
outside          the enclosing if. Thanks to Assaf Gordon <assaf-
gordon@gmail.com>         for the report.

2016-06-08         Arnold D. Robbins     <arnold@skeeve.com>

        * symbol.c (lookup): If got Node_val, it's a non-variable
        in SYMTAB, return NULL. Can affect watchpoints in the de-
bugger,         maybe other places. Thanks to Hermann Peifer  for
the         test case and report.

2016-06-05         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c: Sync with GNU grep.

2016-06-01         Arnold D. Robbins     <arnold@skeeve.com>

        *  nonposix.h  (getpgrp): Wrap declaration in ifdef so it
doesn't         mess things up on POSIX systems  (like  Solaris).
Thanks  to         Nelson Beebe for the report.          * node.c
(is_hex): New function to check for 0x  preceded  by          op-
tional  sign.           (r_force_number):  Use it. Thanks to Mike
Brennan for the report.

2016-05-30         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        * gawkapi.h (awk_ext_func_t): Rename num_expected_args to
        max_expected_args, and explain in  the  comment  that  it
doesn't  really          matter.          * ext.c (make_builtin):
Replace   num_expected_args    with            max_expected_args.
        (get_argument):  Do not check whether the argument number
exceeds         the maximum expected by the function.

2016-05-30         Arnold D. Robbins     <arnold@skeeve.com>

        * main.c (arg_assign): Fully bracket ifdefs  around  call
        to force_number. Thanks to Andrew Schorr for pointing out
        that force_number was called only if LC_NUMERIC  was  de-
fined.                   Lots of files: Update copyright date.

        * field.c (set_FS): Handle FS = " " if RS = "". Thanks to
        Janis Papanagnou for the report.

        * getopt.c, getopt.h, getopt1.c, getopt_int.h: Sync  with
GLIBC.

2016-05-26          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * awk.h (get_actual_argument): Remove  unused  "optional"
argument.            (get_scalar_argument,   get_array_argument):
Change macro definition to         remove  3rd  "optional"  argu-
ment.           * ext.c (get_actual_argument): Remove unused "op-
tional"   argument.            *   gawkapi.c   (api_get_argument,
api_set_argument):   Remove   unused  final          argument  to
get_array_argument and get_scalar_argument.

2016-05-26         Arnold D. Robbins     <arnold@skeeve.com>

        * awk.h [fatal]: Make parentheses and use of  indirection
        consistent  with  warning  and lintwarn. Thanks to Andrew
Schorr         for  pointing  this  out.           *  str_array.c
(str_lookup):  Move test for MAYBE_NUM to where         we dupli-
cate the subscript. Removing it across the board is         wrong
if  there are multiple references to the value. Thanks         to
Andrew Schorr for discussion and test case.

2016-05-26         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  awk.h  (get_actual_argument):  Add an initial argument
containing         the (NODE *) previously returned by  get_argu-
ment.  This allows us to         eliminate a call to get_argument
from inside  get_actual_argument.           (get_scalar_argument,
get_array_argument):  Change  macro  definition to         add an
initial node argument to  pass  through  to  get_actual_argument.
        * ext.c (get_actual_argument): Add initial (NODE *) argu-
ment to contain         the value previously returned by  get_ar-
gument.  This  allows  us  to         avoid repeating the call to
get_argument. We can also eliminate the         check for a  NULL
value,  since  the  caller did that already.          * gawkapi.c
(api_get_argument):  Pass  (NODE  *)  returned  by   get_argument
        to     get_array_argument     and    get_scalar_argument.
        (api_set_argument): Pass (NODE *) returned  by  get_argu-
ment to         get_array_argument.

2016-05-25               Manuel      Collado             <mcolla-
do2011@gmail.com>.

        *     gawkapi.c     (api_nonfatal):     New     function.
        (api_impl):  Include  it.           *  gawkapi.h  (struct
gawk_api):  Add  api_nonfatal  member.           (nonfatal):  New
macro.

2016-05-12         Arnold Robbins       <arnold@skeeve.com>

        *  str_array.c  (str_lookup):  Remove MAYBE_NUM from sub-
script  flags.           Bug  reported  by  Andres  Legarra  <An-
dres.Legarra@toulouse.inra.fr>.

        Unrelated:   Fix   issues   with   SIGPIPE.  Reported  by
        Ian Jackson <ijackson@chiark.greenend.org.uk>.

        * builtin.c (do_system):  Reset/restore  SIGPIPE  to/from
default around         call to system.          * io.c (redirect,
gawk_popen [PIPES_SIMULATED]): Same.

2016-05-12  Eli Zaretskii  <eliz@gnu.org>

        * nonposix.h: Add prototypes for POSIX functions emulated
in pc/*         files.

2016-05-09          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * interpret.h (r_interpret): Op_ext_builtin. No  need  to
test  whether          op == Op_ext_builtin, since we wouldn't be
here otherwise.

2016-05-03         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        * builtin.c (format_tree): Do not waste a byte at the end
of a string.

2016-05-03         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        * builtin.c (format_tree): After the string has been ren-
dered, use         realloc to shrink the  buffer  to  the  needed
size. Otherwise, the minimum         buffer size of 512 bytes can
result in lots of wasted memory if many          sprintf  results
are stored in an array.

2016-05-02          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * gawkapi.h (gawk_api_major_version,  gawk_api_minor_ver-
sion): Add         CPP #define values to support conditional com-
pilation.

2016-05-02         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.h, dfa.c: Sync  with  grep.           *  re.c  (re-
search): Adjust type of try_backref.

2016-05-02         Arnold D. Robbins     <arnold@skeeve.com>

        * awk.h (success_node): Declare.          * array.c (suc-
cess_node): Define.          * cint_array.c, int_array.c, str_ar-
ray.c: Use `& success_node'         instead of `(NODE **) ! NULL'
to indicate success throughout.          Thanks to Pat Rankin for
the cleanup suggestion.

2016-04-27         Arnold D. Robbins     <arnold@skeeve.com>

        *  io.c  (set_RS): Use rs1scan if do_traditional, even if
length         of RS is > 1.  Bug  reported  by  Glauco  Ciullini
        <glauco.ciullini6245@gmail.com>.

2016-04-24         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c: Sync with GNU grep.

2016-04-11         Arnold D. Robbins     <arnold@skeeve.com>

        *   regex_internal.c:   Replace  _GL_ATTRIBUTE_PURE  with
        __attribute__.

2016-04-11         Arnold D. Robbins     <arnold@skeeve.com>

        * regexec.c: Stamp out last remaining use of __attribute.
        *  regcomp.c: Undo change of 2016-01-24 when parsing sin-
gle-byte         ranges. Go back to treating them  as  bytes  and
not as characters.          The change broke things on Windows in
non-UTF-8 character sets.          * mbsupport.h (mbstate_t): De-
fine to int.          Update copyright.

2016-04-10         John E. Malmberg      <wb8tyw@qsl.net>

        * regex_internal.c: Use _GL_ATTRIBUTE_PURE macro

2016-04-07         Arnold D. Robbins     <arnold@skeeve.com>

        *   awk.h  (two_way_close_type):  Move  here  from  io.c.
        (close_rp):   Add   declaration.            *   builtin.c
(do_printf):  Call close_rp before fatal message when         at-
tempting to write the  closed  write  end  of  a  two  way  pipe.
        (do_print):    Ditto.            (do_print_rec):   Ditto.
        * io.c (do_getline_redir): Same, for reading closed  read
end.          (close_rp): Make not static.

2016-04-07  Eli Zaretskii  <eliz@gnu.org>

        * nonposix.h (WEXITSTATUS, WIFEXITED, WIFSIGNALED, WTERM-
SIG)         (WIFSTOPPED, WSTOPSIG) [__MINGW32__]: New macros  to
replace the         missing header sys/wait.h.          (w32_sta-
tus_to_termsig): Add prototype.

        * builtin.c (do_system) [__MINGW32__]: Compute  the  exit
status  of          'system'  differently under --traditional, as
the low 8 bits are         the most interesting.

2016-04-06         Arnold D. Robbins     <arnold@skeeve.com>

        * builtin.c (do_printf): Allow  a  write  to  the  closed
write-end of         a two-way pipe to be nonfatal if NONFATAL is
set for it.          (do_print): Ditto.           (do_print_rec):
Ditto.          * io.c (do_getline_redir): Same thing for reading
from a closed         read end of a two-way pipe. Fatal error.

2016-04-04         Arnold D. Robbins     <arnold@skeeve.com>

        * builtin.c (do_fflush): Add warning for flush to two-way
        pipe   where   write  end  was  closed.           *  io.c
(flush_io): Add some braces for the for loop.

2016-04-02         Arnold D. Robbins     <arnold@skeeve.com>

        * builtin.c (do_printf): If the redirection  is  two  way
but  the         fp is NULL, it means we're writing to the closed
write-end of         a two-way pipe. Issue a fatal error message.
        (do_print):    Ditto.            (do_print_rec):   Ditto.
        * io.c (do_getline_redir): Same thing for reading from  a
closed           read   end  of  a  two-way  pipe.  Fatal  error.
        * NEWS: Updated.

2016-03-27         Stephen Davies        <sdavies@sdc.com.au>

        * awkgram.y (get_comment): Strip CRs from comment.  Strip
        off trailing newlines.

2016-03-21         Arnold D. Robbins     <arnold@skeeve.com>

        *  profile.c  (pprint): Improve handling of comment after
        and if statement without an else.

2016-03-19         Arnold D. Robbins     <arnold@skeeve.com>

        Considerable improvements to handling  of  comments  when
pretty         printing, particularly for end-of-line comments.

        *  awkgram.y  (prior_comment, comment_to_save): New vari-
ables.              (add_pending_comment):     New      function.
        (grammar):  Jump  through lots more hoops to capture com-
ments.          Due to shift-reduce parsing, there can be  up  to
two comments         captured and waiting to be saved; be sure to
get them both and         at the right times.  This is  difficult
since  comments  have  no          real syntactic existence. Call
add_pending_comment on most  of          the  simple  statements.
        (get_comment):  Save a pre-existing comment in prior_com-
ment.          (split_comment): Use  comment_to_save  instead  of
`comment'.           * profile.c (end_line): Change to return the
instruction after         the comment that gets  printed;  adjust
return type.          (pprint): Add skip_comment static variable.
Adjust logic for         skipping an end-of-line comment; only do
it if skip_comment is         true. This is set to true in places
where we can't use  the          return  value  from  end_line().
Call  end_line()  in many more places.          (pp_func): Handle
end-of-line comments after a function header.

2016-03-17         Arnold D. Robbins     <arnold@skeeve.com>

        * debug.c (print_instruction):  For  Op_comment,  improve
notation  as          to whether it's a full comment or an end of
line comment.

2016-03-14         Arnold D. Robbins     <arnold@skeeve.com>

        * io.c (socketopen):  For  SOCK_DGRAM,  set  read_len  to
sizeof          remote_addr.  Makes  UDP more or less work again.
        Thanks to Juergen Kahrs for the fix.

2016-03-11         Arnold D. Robbins     <arnold@skeeve.com>

        * debug.c (print_instruction): Normalize printing of com-
ment dump.

2016-03-10         Arnold D. Robbins     <arnold@skeeve.com>

        * builtin.c (do_system): Further improvements. Catch core
dump         flag.

2016-03-11         Arnold D. Robbins     <arnold@skeeve.com>

        * builtin.c (do_system): Improve return  values  of  sys-
tem().

2016-03-08         Arnold D. Robbins     <arnold@skeeve.com>

        *  profile.c  (print_instruction): Fix duplicate case not
caught         by TinyCC. Grrr.

2016-03-07         Arnold D. Robbins     <arnold@skeeve.com>

        * profile.c (print_instruction): Further improvements  in
        instruction  dump,  especially  for when pretty-printing.
        * builtin.c (do_system): Augment the logic for the return
        value so that death-by-signal info is available too.

2016-03-03         Arnold D. Robbins     <arnold@skeeve.com>

        *  profile.c (pp_list): Unconditionally compute delimlen.
Avoids         compiler warning.

2016-03-02         Arnold D. Robbins     <arnold@skeeve.com>

        * debug.c (print_instruction): Improvements  in  instruc-
tion dump         for if and else.

2016-03-01         Arnold D. Robbins     <arnold@skeeve.com>

        *  debug.c (print_instruction): For Op_comment, add nota-
tion as         to whether it's a full comment or an end of  line
comment.

2016-02-29         Arnold D. Robbins     <arnold@skeeve.com>

        *  profile.c (pp_list): Handle the case of nargs equal to
zero.          Thanks to Hermann Peifer for the report.

2016-02-28         Arnold D. Robbins     <arnold@skeeve.com>

        * profile.c (pprint): Fix copy-paste error in  else  han-
dling.          Thanks to Michal Jaegermann for the report.

2016-02-23         Arnold D. Robbins     <arnold@skeeve.com>

        *  config.guess, config.rpath, config.sub: Update to lat-
est         from GNULIB.

2016-02-23         Arnold D. Robbins     <arnold@skeeve.com>

        * NEWS: Update full list of infrastructure tools.

2016-02-22             gettextize                   <bug-gnu-get-
text@gnu.org>

        * configure.ac (AM_GNU_GETTEXT_VERSION): Bump to 0.19.7.

2016-02-21         Nelson H.F. Beebe     <beebe@math.utah.edu>

        * random.c [SHUFFLE_BITS, SHUFFLE_MAX, SHUFFLE_MASK]: New
macros.          (shuffle_init, shuffle_buffer): New static vari-
ables.          (random_old): Renamed from random.          (ran-
dom):  New  function  wrapping   random_old   and   providing   a
        shuffle buffer to increase the period. See the literature
citations         and other notes in the code.

2016-02-21         Arnold D. Robbins     <arnold@skeeve.com>

        * regexec.c  (prune_impossible_nodes):  Remove  attribute
that          keeps  it  from  compiling with 32 bit GCC. Who the
heck knows         why or how. Sigh. Double sigh.

2016-02-20         Arnold D. Robbins     <arnold@skeeve.com>

        *   regcomp.c,   regex.c,   regex.h,    regex_internal.c,
regex_internal.h,         regexec.c: Sync with GLIBC, mostly pro-
totype changes.

2016-02-18         Arnold D. Robbins     <arnold@skeeve.com>

        Fix profile / pretty-printing to chain else-ifs.

        * profile.c (pprint): Change third argument into a set of
flags         for in the for header or in an else if. Adjust case
Op_K_else to         make the right checks and  format  the  code
properly. In Op_K_if         clear the flag so that any following
else gets indented properly.          Adjust all calls.

2016-02-14         Arnold D. Robbins     <arnold@skeeve.com>

        * README, NEWS: Updated to reflect use of Texinfo 6.1.

        Unrelated:

        * configure.ac: Switch to AC_PROG_CC_C99  to  enable  C99
        compilation and features.          * dfa.c: Sync with GNU
grep, go back to C99 style declarations         at point of use.

2016-02-05         Arnold D. Robbins     <arnold@skeeve.com>

        Make optimization (constant folding and tail call  recur-
sion)         be on by default.

        *  awkgram.y  (common_exp):  Only do concatenation of two
strings(!)           *  main.c  (do_optimize):  Init   to   true.
        (optab):  Add  new -s/--no-optimize option.          (us-
age): Update message to include it.          (parse_args):  Parse
it.  Set  do_optimize to false if pretty         printing or pro-
filing.          * NEWS: Updated.

2016-01-28         Arnold D. Robbins     <arnold@skeeve.com>

        * Makefile.am (SUBDIRS): Include extras.  Otherwise  dist
does         doesn't work.

2016-01-27         Arnold D. Robbins     <arnold@skeeve.com>

        *    configure.ac   (GAWK_AC_AIX_TWEAK):   Remove   call.
        * configure:  Regenerated.           *  io.c  (GAWK_AIX):
Check  _AIX  instead.           *  custom.h (_AIX): Add define of
_XOPEN_SOURCE_EXTENDED.

        Unrelated:

        * configure.ac: Remove old stuff for ISC Unix, no  longer
needed.          * configure: Regenerated.

2016-01-25         John E. Malmberg      <wb8tyw@qsl.net>

        *  io.c (redirect): Need to call close_one more than once
after           running out of file handles.

2016-01-25         Arnold D. Robbins     <arnold@skeeve.com>

        * NEWS: Document VMS support updated.

2016-01-24         Arnold D. Robbins     <arnold@skeeve.com>

        Regex: treat [x] as x if x is a unibyte  encoding  error.
        This change removes an ifdef GAWK.

        * regcomp.c (parse_byte) [ !_LIBC && RE_ENABLE_I18N]: New
function.          (build_range_exp) [ !_LIBC && RE_ENABLE_I18N]:
Use it.          From Paul Eggert  <eggert@cs.ucla.edu>.

2016-01-22         Arnold D. Robbins     <arnold@skeeve.com>

        *  regexec.c  (prune_impossible_nodes):  Remove  all  at-
tributes, on         both declaration and  definition.   Fixes  a
Linux  Mint  17  compilation          braino  reported by Antonio
Colombo.          * regex_internal.h (test_malloc): Add  cast  to
silence  a warning         on the same system.          (test_re-
alloc): Ditto.

2016-01-20         Arnold D. Robbins     <arnold@skeeve.com>

        * regex_internal.h [attribute_hidden]: Remove definition.
        *  regcomp.c  [attribute_hidden]: Remove uses. Not needed
since         the variables are static. Thanks to Paul Eggert for
pointing         this out.

2016-01-18         Paul Eggert  <eggert@cs.ucla.edu>

        Diagnose  ERE  '()|1'          Problem  reported by Hanno
Boeck in: http://bugs.gnu.org/21513

        * lib/regcomp.c (parse_reg_exp): While  parsing  alterna-
tives, keep         track of the set of previously-completed sub-
expressions available         before the first  alternative,  and
restore  this set just before         parsing each subsequent al-
ternative.  This lets us diagnose the         invalid back-refer-
ence in the ERE '()|1'.

        Unrelated:   General minor cleanups (spelling, code) from
Gnulib:

        * regex.h, regex_internal.c, regex_internal.h, regexec.c:
Minor         cleanups.

2016-01-14         Arnold D. Robbins     <arnold@skeeve.com>

        * eval.c (r_get_lhs): If original array was Node_var_new,
        assign value that is  dupnode  of  Nnull_string  and  not
        Nnull_string   directly.  Fixes  core  dump  reported  by
        ruyk <Lonely.ruyk@mail.ru>.

        Unrelated:

        * ChangeLog: Cleanup spurious extra whitespace.

2016-01-03         Arnold D. Robbins     <arnold@skeeve.com>

        *  configure.ac   (GAWK_AC_LINUX_ALPHA):   Remove   call.
        *  configure:  Regenerated.          * NEWS: Document re-
moval of support for GNU/Linux on Alpha.

2016-01-02         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c (add_utf8_anychar): Minor change  in  declaration
of          utf8_classes  to keep Tiny CC happy.  Also syncs with
grep.          * dfa.h: Sync with grep (update copyright year).

2015-12-27         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y (mk_condition): Revise  to  correctly  handle
        empty  else  part  for  pretty  printing.  Bug  report by
        ziyunfei <446240525@qq.com>.

2015-12-20         Arnold D. Robbins     <arnold@skeeve.com>

        * io.c (nonfatal): New static constant string.          *
is_non_fatal, is_non_fatal_redirect: Use it.

2015-12-16         Arnold D. Robbins     <arnold@skeeve.com>

        *  io.c (two_way_open): Remove unneeded close of slave in
the         parent.

2015-12-16         Arnold D. Robbins     <arnold@skeeve.com>

        * profile.c (pp_number): Move count into ifdef for  MPFR.
Avoids          an  unused  variable warning if not compiling for
MPFR.

        Unrelated:

        * io.c (two_way_open): If using a pty instead  of  pipes,
open  the          slave in the child. Fixes AIX and doesn't seem
to break GNU/Linux.

2015-11-26         Arnold D. Robbins     <arnold@skeeve.com>

        * command.y (cmdtab): Add "exit" as synonym  for  "quit".
        Suggested  by  Joep  van  Delft <joepvandelft@xs4all.nl>.
        * NEWS: Document this.

2015-11-24         Arnold D. Robbins     <arnold@skeeve.com>

        * debug.c (debug_pre_execute): Fix to  check  watchpoints
before          checking breakpoints. Gives more natural behavior
for the user.          * NEWS: Document this.          Issue  re-
ported by Joep van Delft <joepvandelft@xs4all.nl>.

2015-10-28         Arnold D. Robbins     <arnold@skeeve.com>

        *   awkgram.y   (nextc):   Don't   allow   ' '   even  if
check_for_bad         is false. Fixes a problem reported by Hanno
Boeck <hanno@hboeck.de>.

        Unrelated:

        * dfa.c: Sync with GNU grep.

2015-10-25         Arnold D. Robbins     <arnold@skeeve.com>

        *   awkgram.y   (yylex):   Fix  invalid  write  problems.
        Reported by Hanno Boeck <hanno@hboeck.de>.           Only
appeared in master. Harumph.

2015-10-16         Arnold D. Robbins     <arnold@skeeve.com>

        *   Makefile.am   (SUBDIRS):   Fix   ordering   so   that
        make  check  directly  after  configure  works  properly.
        Thanks   to   Michal   Jaegermann  <michal.jnn@gmail.com>
        for the report.

        Unrelated:

        * dfa.c: Sync with GNU grep.

2015-10-11         Arnold D. Robbins     <arnold@skeeve.com>

        *  awkgram.y  (yylex):   Fix   invalid   read   problems.
        Reported by Hanno Boeck <hanno@hboeck.de>.

2015-10-04         Arnold D. Robbins     <arnold@skeeve.com>

        * configure.ac: Bump version to 4.1.3a.

2015-09-26         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y (yylex): Diagnose multidimensional arrays for
        traditional/posix (fatal) or lint. Thanks  to  Ed  Morton
        for the bug report.

2015-09-25         Arnold D. Robbins     <arnold@skeeve.com>

        * config.guess, config.sub, config.rpath: Updated.

2015-09-18         Arnold D. Robbins     <arnold@skeeve.com>

        *  field.c  (fpat_parse_field):  Always use rp->non_empty
instead         of only if in_middle. The latter can be true even
if  we've         already parsed part of the record. Thanks to Ed
Morton         for the bug report.

2015-09-11      Daniel Richard G.       <skunk@iSKUNK.ORG>

        * regcomp.c: Include strings.h, wrapped in ifdef.  Revise
        defines  for  BTOWC.           * regex_internal.h: Remove
ZOS_USS bracketing ifdefs.

2015-09-04         Arnold D. Robbins     <arnold@skeeve.com>

        * profile.c (pp_num): Use format_val  to  print  integral
values          as integers. Thanks to Hermann Peifer for the re-
port.

2015-08-28      Daniel Richard G.       <skunk@iSKUNK.ORG>

        * Makefile.am, configure.ac: Use an Automake  conditional
to          enable/disable  the "extensions" subdirectory instead
of         producing a stub Makefile therein from  the  configure
script.           *  awk.h,  custom.h,  regex_internal.h: Removed
z/OS-specific code         that is no longer needed  due  to  im-
provements   in   Gawk's   general           Autotools   support.
        * awk.h: Allow <strings.h> to be #included together  with
        <string.h>  as  this  is required on some systems (z/OS).
        * io.c, configure.ac: <sys/select.h> is  needed  for  se-
lect()         and related bits on z/OS.          * awk.h: Handle
the redefinition of EXIT_FAILURE on z/OS in a          more  ele-
gant/general  way.          * awkgram.y, command.y, configure.ac,
eval.c,         helpers/testdfa.c: Define and use the  USE_EBCDIC
cpp  symbol         instead of checking the value of 'a' whenever
we want to know         if we're on an EBCDIC system. Also, don't
assume that z/OS         necessarily means EBCDIC, as the compil-
er does have an ASCII          mode  (-qascii).           *  awk-
gram.y,  command.y, configure.ac: On EBCDIC systems,         con-
vert  singleton  EBCDIC  characters  in  the  input   stream   to
        ASCII  on  the  fly  so that the generated awkgram.c/com-
mand.c in         the distributed sources can be  used,  i.e.  we
don't have to         require the user to build Bison and re-gen-
erate those files         themselves. This implementation uses  a
z/OS-specific function         (__etoa_l()) to do the conversion,
but support for other         systems can be added in the  future
as  necessary.           * io.c: No need to protect this block of
"#if         defined(HAVE_TERMIOS_H)" code from  z/OS;  it  works
just  fine          there.          * configure.ac: Check for the
"struct passwd.pw_passwd"  and          "struct  group.gr_passwd"
fields  and conditionalize their use,         as they don't exist
on z/OS.  Needed for doc/gawktexi.in.

2015-08-25         Arnold D. Robbins     <arnold@skeeve.com>

        * node.c (str2wstr): Upon finding an  invalid  character,
if          using UTF-8, use the replacement character instead of
skipping         it. Helps match() and other functions work  bet-
ter  in the face         of unexpected data.  Make the lint warn-
ing an unconditional         warning.

        Unrelated:

        * awk.h: Add explanatory comment on the flags related  to
        types  and  values.          * mpfr.c (mpg_force_number):
If  setting  NUMBER,  clear  STRING  also          when  clearing
MAYBE_NUM.           (set_PREC):  Check STRCUR instead of STRING.
        *  node.c  (r_force_number):  If  setting  NUMBER,  clear
STRING also         when clearing MAYBE_NUM.

2015-08-15         Arnold D. Robbins     <arnold@skeeve.com>

        *  dfa.c  (dfamust):  Restore  c90  compat by moving some
        variable declarations to the top of the routine.

2015-08-12         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c: Sync with GNU grep. Yet again, again.

2015-08-02         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c: Sync with GNU grep. Yet again.

2015-07-21         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c: Sync with GNU grep.

2015-07-18         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c: Sync with GNU grep.

2015-07-08         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.h, dfa.c: Sync with GNU grep.

2015-06-29         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y (yylex): If gawk extension function is  found
as          a  function in a user-defined function body, treat it
normally.          Makes eval "print and(a, 1)" work in  the  de-
bugger  again.           Thanks,  yet  again,  to Hermann Peifer.
        * interpret.h (r_interpret): Op_subscript. UPREF  if  the
        element  value  is  a  typed  regexp.   Thanks to Hermann
Peifer.

2015-06-28         Arnold D. Robbins     <arnold@skeeve.com>

        Improve memory tracking of typed regexps.

        * awkgram.y (make_regnode): Set valref to  1.           *
interpret.h  (r_interpret):  Have  Op_push_re upref typed regexp.
        *  builtin.c  (do_typeof):  OK  to  deref  typed   regex.
        * awk.h (force_string): Do dupnode on the regexp text.

2015-06-26         Arnold D. Robbins     <arnold@skeeve.com>

        Remove support for old-style extensions.

        *  awk.h  (Node_old_ext_func,  Op_old_ext_func): Removed.
        Remove     all     uses     throughout     the      code.
        (load_old_ext,  make_old_builtin):  Remove  declarations.
        *  ext.c   (load_old_ext,   make_old_builtin):   Removed.
        *   awkgram.y   (tokentab):   Remove  "extension"  entry.
        * eval.c  (Node_old_ext_funci,  Op_old_ext_func):  Remove
from tables.          * interpret.h (interpret): Remove stuff for
old extensions.

        Unrelated:

        * builtin.c (do_typeof): Add support for strnum,  distin-
guish         untyped from unassigned, use "string" and "number".
Thanks to         Hermann Peifer for suggesting inclusion of str-
num.

2015-06-25         Arnold D. Robbins     <arnold@skeeve.com>

        Further  work  straightening  out  memory  management for
typeof.

        * awk.h (DEREF):  Add  an  assert.           *  builtin.c
(do_typeof):  Add  comments, cases where not to deref.          *
debug.c (print_instruction): Add Op_push_arg_untyped.           *
interpret.h  (r_interpret):  Additional  comments  /  tweaks  for
        Op_push_arg_untyped.

        Unrelated. Make `x = @/foo/ ; print x' print something.

        * builtin.c (do_print):  Check  for  Node_typedregex  and
handle it.          Needed for adding test code.

        Unrelated. Typo fix.

        *  debug.c  (initialize_watch_item):  Dupnode  the  right
thing.

2015-06-22         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y (snode): Make isarray not  scalarize  untyped
parameters           also.           *  profile.c  (pprint):  Add
Op_push_arg_untyped.

        Improve   debugger    support    for    typed    regexps.
        Thanks to Hermann Peifer for the bug report.

        *  awkgram.y  (valinfo): Add support for Node_typedregex.
        * debug.c (watchpoint_triggered): Handle Node_typedregex.
        (initialize_watch_item):  Ditto.          (print_memory):
Ditto.

        Fix typeof to work on subarrays.  Thanks, yet  again,  to
        Hermann Peifer for the bug report.

        * builtin.c (do_typeof): Don't deref Node_var_array.

2015-06-21         Arnold D. Robbins     <arnold@skeeve.com>

        Fixes  for  typeof  -  Don't let typeof change an untyped
variable         into a scalar.

        * awk.h (opcodeval): Add Op_push_arg_untyped.           *
awkgram.y   (snode):   Separate   out  case  for  do_typeof,  use
        Op_push_arg_untyped.           *  builtin.c  (do_typeof):
Arg  will  be  equal  to  Nnull_string          if  it's untyped.
        * eval.c (optypes): Add  Op_push_arg_untyped.           *
interpret.h (r_interpret): Add Op_push_arg_untyped handling.

2015-06-19         Arnold D. Robbins     <arnold@skeeve.com>

        *  builtin.c  (do_isarray):  Minor  edit to lint warning.
        * TODO: Updated.

2015-06-14         Arnold D. Robbins     <arnold@skeeve.com>

        *  regcomp.c,  regex_internal.h,  regexec.c:  Sync   with
GLIBC.

        Unrelated:

        *  regex_internal.c,  regexec.c: __attribute --> __attri-
bute__.

        Related:

        * regex_internal.h: Clean up defines for non-GCC for  at-
tribute;         essentially sync it with GLIBC.

2015-06-12         Arnold D. Robbins     <arnold@skeeve.com>

        *  awkgram.y:  Finish  converting "hard" regex to "typed"
regex.

2015-05-31         Arnold D. Robbins     <arnold@skeeve.com>

        *  field.c  (posix_def_parse_field):  Removed.  It's   no
longer         needed after updates to the POSIX standard. Thanks
to         Michael Klement <michael.klement@usa.net> for pointing
this out.

2015-05-26  Paul Eggert  <eggert@Penguin.CS.UCLA.EDU>

        *   floatcomp.c   (count_trailing_zeros):  New  function.
        This compiles  to  a  single  TZCNT  instruction  on  the
x86-64.           (adjust_uint):  Use  it to keep more high-order
bits when         some of the lowest-order bits are  zero.   This
implements         the documented behavior: "If the result cannot
be represented         exactly as a C 'double',  leading  nonzero
bits  are  removed one by         one until it can be represented
exactly."

2015-05-26         Arnold D. Robbins     <arnold@skeeve.com>

        * regcomp.c: Fix offsets so error messages come out  cor-
rect         once again.

2015-05-19         Arnold D. Robbins     <arnold@skeeve.com>

        * 4.1.3: Release tar ball made.

2015-05-15          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * symbol.c (load_symbols):  Plug  minor  memory  leak  by
calling  unref(tmp)          on  "identifiers"  string  after as-
soc_lookup is done with it.

2015-05-15         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  main.c (load_procinfo_argv): New function to save argv
array     values             in      PROCINFO["argv"][0..argc-1].
        (load_procinfo): Call load_procinfo_argv.

2015-05-11         Arnold D. Robbins     <arnold@skeeve.com>

        *  awk.h,  awkgram.y,  builtin.c, eval.c profile.c, re.c:
        Change Node_hardregex to Node_typedregex everywhere.

2015-05-05         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y (yylex): Yet Another Fix for parsing  bracket
        expressions.  Thanks  yet  again  to Andrew Schorr. Maybe
it's         even finally nailed down now.

        Unrelated:

        * config.guess, config.sub: Get latest versions.

        Make profiling for hard regexes work.

        *  profile.c  (pp_string_or_hard_regex):   Renamed   from
pp_string.           Add  bool  param for hard regex and add @ if
so.               (pp_string):      New      function,      calls
pp_string_or_hard_regex.           (pp_hard_regex): New function,
calls pp_string_or_hard_regex.          (pprint): Adjust to print
a hard regex correctly.

2015-05-01         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y: Make sure values are not null in param list.
        Avoids core dump for `function f(func, a) {}'. Thanks  to
        Tibor Palinkas <libmawk@igor2.repo.hu>.

2015-04-30         Arnold D. Robbins     <arnold@skeeve.com>

        *  Makefile.am:  Take  --program-prefix into account when
        installing/uninstalling the symlinks,  especially  'awk'.
        Thanks   to  Steffen  Nurpmeso  <sdaoden@yandex.com>  for
        the report.

        Unrelated:

        * awkgram.y (yylex): Yet Another Fix for parsing  bracket
        expressions. Thanks again to Andrew Schorr.

2015-04-29         Arnold D. Robbins     <arnold@skeeve.com>

        * 4.1.2: Release tar ball made.

2015-04-28         Arnold D. Robbins     <arnold@skeeve.com>

        *  builtin.c  (isarray):  Add lint warning that isarray()
        is deprecated.

2015-04-28         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y (yylex): Rework the bracket handling from ze-
ro.           Thanks  to  Michal  Jaegermann for yet another test
case.

        Unrelated:

        * eval.c (setup_frame):  Restore  call-by-value  for  $0.
This  was          necessitated  by the changes on 2014-11-11 for
conserving         memory use. Thanks to Andrew  Schorr  for  the
report and isolating         the cause of the problem.

2015-04-27         Arnold D. Robbins     <arnold@skeeve.com>

        *  awkgram.y  (yylex):  Make  change of Jan 7 for parsing
regexps         work better. Thanks to Nelson Beebe.

2015-04-26         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c: Sync with grep.

2015-04-16         Arnold D. Robbins     <arnold@skeeve.com>

        * builtin.c (do_strftime): For bad time_t values,  return
"".

2015-04-16          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * node.c (r_force_number): If  strtod  sets  errno,  then
force  the         numeric value in node->numbr to zero. For sub-
normal values, strtod         sets errno but does not return  ze-
ro, and we don't want to retain         those subnormal values.

2015-04-16         Arnold D. Robbins     <arnold@skeeve.com>

        Let  parameter  names shadow the names of gawk additional
built-ins.          Make it actually work.

        * awkgram.y (want_param_names): Now an  enum,  there  are
three    states.            (grammar):   Set   states   properly.
        (yylex): Improve checking logic.

2015-04-16         Arnold D. Robbins     <arnold@skeeve.com>

        * configure.ac: Updated by autoupdate.          * config-
ure, aclocal.m4: Regenerated.          * io.c, main.c, profile.c:
Removed use of RETSIGTYPE.

2015-04-16         Arnold D. Robbins     <arnold@skeeve.com>

        * builtin.c (do_strftime): Use a double for the timestamp
and         check that the value is within range for a time_t.

        Unrelated:

        *  regex_internal.h  (test_malloc, test_realloc): Use %lu
in printf         format for error  messages.  Thanks  to  Michal
Jaegermann for         pointing this out.

        Unrelated:

        * NEWS: Updated.

2015-04-15         Arnold D. Robbins     <arnold@skeeve.com>

        Let  parameter  names shadow the names of gawk additional
built-ins.

        *    awkgram.y    (want_param_names):    New    variable.
        (yylex):  Check  it  before  returning  a built-in token.
        (grammar): Set and clear it in the right places.

2015-04-14         Arnold D. Robbins     <arnold@skeeve.com>

        * builtin.c (do_strftime): Restore checking for  negative
result  and          add check that time_t is > 0 --- means we're
assigning a negative value         to an unsigned time_t.  Thanks
again    to   Glaudiston   Gomes   da   Silva           <glaudis-
tong@gmail.com>.

        If localtime() or gmtime() return  NULL,  return  a  null
string.          Thanks to Andrew Schorr.

        Unrelated:          * builtin.c (call_sub): Fix for indi-
rect gensub, 3 args now works.

        Unrelated:

        * builtin.c (do_sub): Improve  some  variable  names  for
readability         and add / expand some comments.

        Unrelated:

        *  builtin.c (call_sub, call_match, call_split_func): Al-
low for         regex to be Node_hardregex.

2015-04-14         Andrew J.  Schorr       <aschorr@telemetry-in-
vestments.com>                            Arnold    D.    Robbins
<arnold@skeeve.com>

        * builtin.c (do_sub): Make computations smarter;  initial
len          to  malloc,  test for final amount after all matches
done and         need to copy in the final part of  the  original
string.

2015-04-13         Arnold D. Robbins     <arnold@skeeve.com>

        *  regcomp.c  (analyze):  Prevent  malloc(0).           *
regex_internal.h  (test_malloc,  test_realloc):   New   functions
        that  check for zero count.          (re_malloc, re_real-
loc): Adjust to call  the  new  functions  for  gawk.           *
regexec.c  (build_trtable,  match_ctx_clean): Replace malloc/free
        with re_malloc/re_free.

        Unrelated:

        * builtin.c  (do_strftime):  Disable  checking  timestamp
value  for  less         than zero. Allows times before the epoch
to work with strftime.          Thanks  to  Glaudiston  Gomes  da
Silva <glaudistong@gmail.com>         for raising the issue.

2015-04-12         Arnold D. Robbins     <arnold@skeeve.com>

        *   Makefile.am   (efence):   Make   this   link   again.
        Thanks to Michal Jaegermann for pointing out the problem.

2015-04-09         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  awkgram.y  (yyerror): Rationalize buffer size computa-
tions. Remove         old valgrind  workarounds.           *  de-
bug.c    (gprintf):   Rationalize   buffer   size   computations.
        (serialize_subscript): Ditto.          *  io.c  (iop_fin-
ish):  Rationalize buffer size computations.          * profile.c
(pp_string): Correct space allocation computation.

2015-04-08        John E. Malmberg       <wb8tyw@qsl.net>

        * custom.h: VMS shares some code paths  with  ZOS_USS  in
        building gawkfts extension.

2015-04-08         Arnold D. Robbins     <arnold@skeeve.com>

        Factor   out   opening  of  /dev/XXX  files  from  /inet.
        Enable interpretation of special filenames for  profiling
output.

        *  awk.h  (devopen_simple):  Add  declaration.          *
io.c (devopen_simple): New routine.          (devopen): Call  de-
vopen_simple     as     appropriate.              *     profile.c
(set_prof_file): Call devopen_simple as appropriate,         some
additional logic to handle fd to fp conversion.

        Unrelated:

        * main.c (usage): Add a comment for translators.

2015-04-08  Eli Zaretskii  <eliz@gnu.org>

        * profile.c (set_prof_file): Interpret a file name of "-"
to mean         standard output.

2015-04-06         Arnold D. Robbins     <arnold@skeeve.com>

        * awk.h (force_number): Add `!= 0' check to bitwise oper-
ation.              *     awkgram.y:     Same,    many    places.
        (check_special): Simplify  code  for  checking  extension
flags.

2015-04-05         Arnold D. Robbins     <arnold@skeeve.com>

        *  awkgram.y  (install_builtins):  If  do_traditional  is
true, do not         install gawk extensions flagged with  GAWKX.
Similarly,  if do_posix         is true, do not install functions
flagged with NOT_POSIX.          This fixes a problem with spuri-
ous  lint  complaints  about  shadowing         a global variable
that is not valid in traditional or posix  mode.           Thanks
to   Andrew   Schorr   for  finding  the  problem  and  supplying
        initial code; I did it slightly differently.

2015-04-03         Arnold D. Robbins     <arnold@skeeve.com>

        * awk.h (force_string): If hard_regex, return string text
of   the   regex.            (force_string,   force_number):   If
hard_regex, return Nnull_string.          * awkgram.y: Fix ~  and
!~  with  @/.../.           * eval.c (setup_frame): Handle a hard
regex.          * re.c (avoid_dfa): Ditto.

2015-04-02         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        * NEWS: Rename div to intdiv.

2015-04-02         Arnold D. Robbins     <arnold@skeeve.com>

        Rename div() to intdiv().

        *  builtin.c (do_intdiv): Renamed from do_div.          *
mfpr.c (do_mpfr_intdiv):  Renamed  from  do_mpfr_div.           *
awk.h:   Update  declarations.           *  awkgram.y  (tokentab,
snode): Revise accordingly.

2015-03-31         Arnold D. Robbins     <arnold@skeeve.com>

        *   awk.h   (call_sub):   Renamed   from   call_sub_func.
        (call_match,    call_split_func):   Declare.            *
builtin.c     (call_sub):     Renamed     from     call_sub_func.
        (call_match,  call_split_func): New functions.          *
interpret.h (r_interpret): Call  new  functions  as  appropriate.
        *  node.c  (r_unref): Revert change to handle Node_regex,
not needed.

2015-03-31         Arnold D. Robbins     <arnold@skeeve.com>

        *  awk.h  (r_get_field):  Declare.           *  builtin.c
(call_sub_func):  Rearrange  the  stack  to  be  what         the
buitin function expects.          *  eval.c  (r_get_field):  Make
extern.

2015-03-27         Arnold D. Robbins     <arnold@skeeve.com>

        *  io.c  (redirect):  Change not_string from int to bool.
        * gawkapi.c (api_get_file): Minor stylistic improvements.
        * NEWS: Updated for retryable I/O and new API function.

2015-03-24         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y (make_regnode): Make extern.          * awk.h
(make_regnode): Declare.           *  builtin.c  (call_sub_func):
Start on reworking the stack to         be what do_sub() expects.
Still needs work.          *  interpret.h  (r_interpret):  Add  a
cast  in  comparison  with do_sub().          * node.c (r_unref):
Handle Node_regex nodes.

2015-03-24         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  interpret.h (r_interpret): When Op_K_exit has an argu-
ment of         Nnull_string, do not update  exit_val,  since  no
value was supplied.

2015-03-24         Arnold D. Robbins     <arnold@skeeve.com>

        * awk.h, gawkapi.c, io.c: Minor code reformatting.

2015-03-20         Arnold D. Robbins     <arnold@skeeve.com>

        Start on fixing indirect calls of builtins.

        * awk.h (call_sub_func): Add declaration.          * awk-
gram.y   (lookup_builtin):   Handle   length,   sub    functions.
        (install_builtin):  Handle  length  function.           *
builtin.c (call_sub_func): New function.           *  interpret.h
(r_interpret):    If    calling    do_sub,    do    it    through
        call_sub_func().

2015-03-19         Arnold D. Robbins     <arnold@skeeve.com>

        * re.c (re_update): Handle hard regex - for sub/gsub/gen-
sub.           *  awkgram.y (grammar): Add support for hard_regex
with ~ and !~;         allowed  only  on  the  right  hand  side.
        (mk_rexp): Handle a hard regex.

2015-03-18         Arnold D. Robbins     <arnold@skeeve.com>

        *  builtin.c  (do_typeof):  Be smarter about checking for
uninitialized         values; can now detect and return "untyped"
for such values.          * awkgram.y (yylex): Collect @/.../ en-
tirely  in  the  lexer  and   return           a   new   terminal
(HARD_REGEX).           (regexp):  Reverted to just a regular awk
regexp constant.          (hard_regexp): New nonterminal, can  be
used  only  in  direct          assignment  and as an argument in
function call. New set of nonterminals         for function  call
expression lists.  More work still to do.

2015-03-18         Arnold D. Robbins     <arnold@skeeve.com>

        * config.guess, config.sub: Updated, from libtool 2.4.6.

2015-03-17         Arnold D. Robbins     <arnold@skeeve.com>

        *  profile.c  (pp_number):  Allocate enough room to print
the number         in all cases. Was a  problem  mixing  -M  with
profiling  with  a  really          big number. Thanks to Hermann
Peifer for the bug report.

2015-03-08         Arnold D. Robbins     <arnold@skeeve.com>

        * re.c (regexflags2str): Removed. It was redundant.

        * io.c (devopen): Change the logic such that if  nonfatal
is  true         for the socket, don't do retries.  Also clean up
the formatting         some.  At strictopen, check  if  errno  is
ENOENT  and if so, propagate         the error from getaddrinfo()
up to the caller. Add explanatory         comments.

2015-02-28         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  io.c  (pty_vs_pipe):  Remove  check  for  NULL PROCIN-
FO_node, since         this is now checked inside in_PROCINFO.

2015-02-27         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  io.c (socketopen): New parameter hard_error; set it if
        getaddrinfo()   fails.   Change   fatals   to   warnings.
        (devopen): Pass in address of boolean hard_error variable
        and stop trying to open the file if hard_error  is  true.
        Save  and  restore  errno around call to socketopen() and
        use restored errno if open() fails at strictopen.

2015-02-27         Arnold D. Robbins     <arnold@skeeve.com>

        * symbol.c (check_param_names):  Fix  argument  order  in
memset()  call.           *  configure.ac: Use AC_SEARCH_LIBS in-
stead of AC_CHECK_LIB. This fixes         a long-standing problem
where `-lm' was used twice in the final         compilation line.

2015-02-27         Arnold D. Robbins     <arnold@skeeve.com>

        Start on making regexp a real type.

        *     awk.h     (Node_hardregex):    New    node    type.
        (do_typeof): Add declaration.          * awkgram.y:  Make
@/.../  a hard regex.          (tokentab): New entry for typeof()
function.            (snode):    Try    to    handle    typeof().
        (make_regnode):    Handle    Node_hardregex.            *
builtin.c (do_typeof): New  function.           *  eval.c  (node-
types):  Add  Node_hardregex.           * re.c (re_update): Check
for hardregex too in assert.

2015-02-24         Arnold D. Robbins     <arnold@skeeve.com>

        * POSIX.STD: Upadfatteer cop\yriglhitneyeacro.ntinuation *evaewrkygwrhaemr.ey.
(yylex):   Allow
        Thanks to Scott Rush <scott.rush@honeywell.com>  for  the
report.

2015-02-13         Arnold D. Robbins     <arnold@skeeve.com>

        *  awkgram.y  (yylex): Be more careful about passing true
to         nextc() when collecting a regexp.  Some systems' iscn-
trl()          are  not  as  forgiving as GLIBC's. E.g., Solaris.
        Thanks to Dagobert Michelsen  <dam@baltic-online.de>  for
        the bug report and access to systems to check the fix.

2015-02-12         Arnold D. Robbins     <arnold@skeeve.com>

        *  POSIX.STD: Update with info about function parameters.
        * configure.ac: Remove test for / use of dbug library.

2015-02-11         Arnold D. Robbins     <arnold@skeeve.com>

        * gawkapi.h: Fix spelling error in comment.

2015-02-10         Arnold D. Robbins     <arnold@skeeve.com>

        * profile.c  (pprint):  Restore  printing  of  count  for
rules.          Bug report by Hermann Peifer.

2015-02-08         Arnold D. Robbins     <arnold@skeeve.com>

        * io.c: Make it "NONFATAL" everywhere.

2015-02-08          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * awk.h  (RED_NON_FATAL):  Removed.           (redirect):
Add  new  failure_fatal  parameter.           (is_non_fatal_redi-
rect): Add declaration.          *  builtin.c  (efwrite):  Rework
check  for non-fatal.          (do_printf): Adjust calls to redi-
rect.          (do_print_rec): Ditto. Move check for  redirection
error  up.           * io.c (redflags2str): Remove RED_NON_FATAL.
        (redirect): Add new failure_fatal parameter. Simplify the
code.              (is_non_fatal_redirect):     New     function.
        (do_getline_redir): Adjust calls to redirect.

2014-12-27         Arnold D. Robbins     <arnold@skeeve.com>

        *  awk.h  (is_non_fatal_std):   Declare   new   function.
        *   io.c  (is_non_fatal_std):  New  function.           *
builtin.c (efwrite): Call it.

2015-02-07         Arnold D. Robbins     <arnold@skeeve.com>

        *   regcomp.c,   regex.c,   regex.h,    regex_internal.c,
regex_internal.h,          regexec.c:  Sync  with  GLIBC.  Mostly
copyright date updates.

2015-02-05         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  eval.c  (set_IGNORECASE):  If IGNORECASE has a numeric
value, try         using that before treating  it  as  a  string.
This fixes a problem         where setting -v IGNORECASE=0 on the
command line was not working         properly.

2015-02-01         Arnold D. Robbins     <arnold@skeeve.com>

        Move POSIX requirement for  disallowing  parameter  names
with the         same name as a function into --posix.

        *  NEWS:  Document  it.           * awkgram.y (parse_pro-
gram): Check do_posix before calling         check_param_names().
        *  symbol.c  (check_param_names):  Set up a fake node and
call         in_array() for function parameter names  instead  of
linear          searching the function list a second time. Thanks
to Andrew         Schorr for the motivation.

2015-01-30         Arnold D. Robbins     <arnold@skeeve.com>

        Don't allow function parameter names to be  the  same  as
function         names - required by POSIX. Bug first reported in
comp.lang.awk.

        In addition, don't allow use of a parameter as a function
name         in a call (but it's ok in indirect calls).

        *  NEWS:  Updated.           * awk.h (check_param_names):
Add declaration.          * awkgram.y  (at_seen):  New  variable.
Communicates    between            yylex()    and   the   parser.
        (FUNC_CALL production): Check at_seen and check that  the
identifier          is a function name.          (parse_program):
Call check_param_names() and set errcount.          (yylex):  Set
at_seen    after   seeing   an   at-sign.            *   symbol.c
(check_param_names): New function.

2015-01-24         Arnold D. Robbins     <arnold@skeeve.com>

        Infrastructure updates.

        Bison 3.0.4. Automake 1.15. Gettext 0.19.4.

2015-01-20         Arnold D. Robbins     <arnold@skeeve.com>

        * gawkapi.c (api_set_array_element): Remove useless  call
to         make_aname.          * symbol.c (load_symbols): Ditto.
        Thanks to Andrew Schorr for pointing out the problem.

2015-01-19         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.c: Update to bison 3.0.3.          * command.c:
Ditto.          * NEWS: Note same.

2015-01-16         Stephen Davies        <sdavies@sdc.com.au>

        * awkgram.y (rule): Set first_rule to false. Catches more
cases         for gathering comments. Thanks  to  Hermann  Peifer
for the test case.

2015-01-15         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.h, dfa.c: Sync with grep. Mainly copyright updates.
        * getopt.c, getopt.h, getopt1.c getopt_int.h:  Sync  with
GLIBC.          Mainly copyright updates, one minor code fix.

2015-01-14         Arnold D. Robbins     <arnold@skeeve.com>

        Remove deferred variables.

        * awk.h (register_deferred_variable): Remove declaration.
        *  awkgram.y   (is_deferred_variable,   process_deferred,
        symtab_used,     extensions_used,     deferred_variables,
        process_deferred): Remove declarations, bodies, and uses.
        *   builtin.c  (do_length):  Update  comment.           *
main.c (init_vars): Just  call  load_procinfo()  and  `load_envi-
ron()'.

2015-01-08          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        Revert changes to API deferred variable creation -- these
variables          should  be  created when lookup is called, not
when update is called.          * awk.h (variable_create): Remove
function declaration.          * awkgram.y (variable_create): Re-
move function.          (variable): Restore variable_create func-
tionality  inline.           * gawkapi.c (api_sym_update): Revert
to using  install_symbol,  since  the          deferred  variable
check should be done when lookup is called, not here.

2015-01-07          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * gawkapi.c (api_set_array_element): Remove stray call to
        make_aname.   I  cannot  see  what  purpose  this served.
Maybe I am         missing something.

2015-01-07         Arnold D. Robbins     <arnold@skeeve.com>

        *  configure.ac:  Update  debug  flags   if   developing.
        *  awkgram.y  (yylex):  Regex parsing bug fix for bracket
expressions.          Thanks to  Mike  Brennan  for  the  report.
        *  builtin.c  (format_tree):  Catch non-use of count$ for
dynamic         field width or precision.

        Unrelated:

        Load deferred variables  if  extensions  are  used;  they
might          want  to access PROCINFO and/or ENVIRON. Thanks to
Andrew Schorr         for pointing out the issue.

        * awkgram.y (extensions_used): New variable.  Set  it  on
@load.              (do_add_scrfile):     Set     it    on    -l.
        (process_deferred): Check it also.

2015-01-06         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        * gawkapi.c (api_sym_update): If copying a subarray, must
update         the parent_array pointer.  Also, call  the  astore
hook  if non-NULL.          (api_set_array_element): Call the as-
tore hook if non-NULL.

2015-01-06         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  awk.h  (variable_create):  Now takes a 3rd argument to
tell  caller          whether  this  is  a   deferred   variable.
        *   awkgram.y   (variable_create):  Return  indicator  of
whether this is         a deferred variable in a newly added  3rd
arg.            (variable):  Pass  3rd  arg  to  variable_create.
        * gawkapi.c (api_sym_update): If we  triggered  the  cre-
ation  of  a  deferred         variable, we must merge the exten-
sion's array elements into the deferred          array,  not  the
other way around.  The ENVIRON array has special funcs         to
call setenv and unsetenv.

2015-01-06         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *   awk.h   (variable_create):   Declare   new  function.
        * awkgram.y (variable_create): New function to  create  a
variable         taking the deferred variable list into consider-
ation.          (variable): Call new function variable_create  if
the   variable   is           not   found.           *  gawkapi.c
(api_sym_update): If an array is being created, then         call
new  function variable_create instead of install_symbol.  If this
        is the first reference to a deferred variable,  than  the
new  array          may contain elements that must be merged into
the array provided by         the extension.

2015-01-05         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  io.c (wait_any): If the `interesting' argument is non-
zero, then we         must not return until  that  child  process
has  exited,  since the caller         gawk_pclose depends on our
returning its exit status.  So in that case,         do not  pass
WNOHANG to waitpid.

2015-01-04          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * gawkapi.h: Fix another comment typo.

2015-01-04         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        * gawkapi.h: Fix typo in comment.

2015-01-02          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * gawkapi.h (gawk_api): Modify api_get_file to remove the
typelen         argument.          (get_file): Remove typelen ar-
gument from the macro.          * gawkapi.c  (api_get_file):  Re-
move typelen argument.

2014-12-24         Arnold D. Robbins     <arnold@skeeve.com>

        *  profile.c  (pprint):  Be  sure to set ip2 in all paths
        through the code. Thanks to GCC 4.9 for the warning.

2014-12-18         Arnold D. Robbins     <arnold@skeeve.com>

        * builtin.c (do_sub): Do not waste a byte at the end of a
string.

2014-12-14         Arnold D. Robbins     <arnold@skeeve.com>

        *  awkgram.y (yyerror): Do not waste a byte at the end of
a string.          * builtin.c (do_match): Ditto.          * com-
mand.y  (append_statement):  Ditto.           * debug.c (gprintf,
serialize): Ditto.          * field.c  (set_FIELDWIDTHS):  Ditto.
        *  io.c.c  (grow_iop_buffer): Ditto.          * profile.c
(pp_string, pp_group3): Ditto.

2014-12-14         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        * array.c (concat_exp): Do not waste a byte at the end of
a string.          * awkgram.y  (common_exp):  Ditto.           *
builtin.c (do_substr): Ditto.          * eval.c (set_OFS): Ditto.
        * field.c (rebuild_record): Ditto.           *  gawkapi.h
(r_make_string):  Ditto.           *  interpret.h  (r_interpret):
Ditto  for  Op_assign_concat.           *  node.c  (r_format_val,
r_dupnode,  make_str_node,  str2wstr,  wstr2str):          Ditto.
        * re.c (make_regexp): Ditto.

2014-12-20         Arnold D. Robbins     <arnold@skeeve.com>

        Enable non-fatal output  on  per-file  or  global  basis,
        via PROCINFO.

        * awk.h (RED_NON_FATAL): New redirection flag.          *
builtin.c (efwrite): If RED_NON_FATAL set, just set ERRNO and re-
turn.           (do_printf):  Check  errflg and if set, set ERRNO
and return.          (do_print): Ditto.           (do_print_rec):
Ditto.             *    io.c    (redflags2str):   Update   table.
        (redirect): Check for global PROCINFO["nonfatal"] or  for
        PROCINFO[file, "nonfatal"] and don't fail on open if set.
        Add RED_NON_FATAL to flags.          (in_PROCINFO):  Make
smarter and more general.

2014-12-12        Stephen Davies         <sdavies@sdc.com.au>

        Improve comment handling in pretty printing.

        *   awk.h   (comment_type):   New   field  in  the  node.
        (EOL_COMMENT, FULL_COMMENT): New defines.          * awk-
gram.y  (block_comment):  New variable.          (check_comment):
New function.          (grammar): Add code to handle comments  as
needed.           (get_comment): Now takes a flag indicating kind
of comment.           (yylex):  Collect  comments  appropriately.
        (append_rule):   Ditto.           *  profile.c  (pprint):
Smarten up comment handling.          Have printing take comments
into      account.              (end_line):     New     function.
        (pp_func): Better handling of function comments.

2014-12-10         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c: Sync with GNU grep.

2014-11-26         Arnold D. Robbins     <arnold@skeeve.com>

        * builtin.c (do_sub): Improve wording of gensub warnings.

2014-11-25         Arnold D. Robbins     <arnold@skeeve.com>

        * builtin.c (do_sub): For gensub, add more  warnings  for
invalid         third argument.

2014-11-23         Arnold D. Robbins     <arnold@skeeve.com>

        *  awk.h:  Move all inline functions to the bottom of the
file.          Keeps modern GCC happier.

2014-11-22         Arnold D. Robbins     <arnold@skeeve.com>

        * awk.h (emalloc, realloc):  Redefine  in  terms  of  ...
        (emalloc_real,  erealloc_real):  New  static inline func-
tions.          (fatal): Move  definition  up.           *  gawk-
misc.c  (xmalloc):  If  count  is  zero,  make  it  one for older
        mallocs that require size > 0 (such as z/OS).

2014-11-21         Arnold D. Robbins     <arnold@skeeve.com>

        * main.c:  Remove  a  debugging  //  comment.           *
NOTES: Removed.

        Unrelated:

        Revert  changes  of  2014-11-20  from Paul Eggert. Causes
failures         on z/OS.

        Unrelated: Avoid unnecessary copying of $0.

        * interpret.h (UNFIELD):  New  macro.           (r_inter-
pret): Use it where *lhs is assigned to.

2014-11-20  Paul Eggert  <eggert@cs.ucla.edu>

        Port to systems where malloc (0) and/or realloc(P, 0) re-
turns NULL.          * gawkmisc.c (xmalloc):          *  xalloc.h
(realloc):          Do not fail if malloc(0) or realloc(P, 0) re-
turns NULL.          Fail only when the  allocator  returns  null
when attempting to         allocate a nonzero number of bytes.

2014-11-19         Arnold D. Robbins     <arnold@skeeve.com>

        Infrastructure upgrades:

        *   Automake   1.14.1,  Gettext  0.19.3,  Libtool  2.4.3.
        * compile, extension/build-aux/compile: New files.

2014-11-19  gettextize  <bug-gnu-gettext@gnu.org>

        * configure.ac (AM_GNU_GETTEXT_VERSION): Bump to 0.19.3.

2014-11-16         Arnold D. Robbins     <arnold@skeeve.com>

        * interpret.h:  Revert  change  of  2014-11-11  since  it
breaks         certain uses.

        Unrelated:

        * dfa.c: Sync with GNU grep.

2014-11-15         Arnold D. Robbins     <arnold@skeeve.com>

        *  array.c,  awk.h,  awkgram.y, builtin.c, dfa.c, eval.c,
field.c,         interpret.h, io.c, main.c, mpfr.c, node.c, re.c,
regex_internal.h,          replace.c: Remove all uses of MBS_SUP-
PORT.          * regex_internal.h:  Disable  wide  characters  on
DJGPP.           *  mbsupport.h:  Rework  to  be  needed only for
DJGPP.

2014-11-11         Arnold D. Robbins     <arnold@skeeve.com>

        Don't let memory used increase linearly in  the  size  of
        the    input.    Problem   reported   by   dragan   legic
        <dragan.legic@yandex.ru>.

        *  field.c  (set_record):   NUL-terminate   the   buffer.
        *  interpret.h  (r_interpret): Op_field_spec: if it's $0,
increment         the valref.  Op_store_var: if we got $0, handle
it appropriately.

2014-11-10         Arnold D. Robbins     <arnold@skeeve.com>

        Reorder  main.c activities so that we can set a locale on
the         command line with the new, for now  undocumented,  -Z
option.

        *  main.c  (parse_args, set_locale_stuff): New functions.
        (stopped_early):     Made     file     level      static.
        (optlist,  optab): Add new argument.          (main): Ad-
just ordering and move inline code into new functions.

2014-11-09         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  gawkapi.c (node_to_awk_value): When the type wanted is
AWK_UNDEFINED         and a it's a Node_val set to  Nnull_string,
return AWK_UNDEFINED instead         of AWK_NUMBER 0.

2014-11-06          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * awk.h (redirect_string): First argument should be  con-
st.   Add  a  new          extfd argument to enable extensions to
create   files   with   pre-opened           file    descriptors.
        (after_beginfile):  Declare  function used in both eval.c
and gawkapi.c.          * eval.c (after_beginfile): Remove extern
declaration  now  in  awk.h.          * gawkapi.c (api_get_file):
Implement API changes to  return          awk_input_buf_t  and/or
awk_output_buf_t  info,  as  well as accept an         fd for in-
serting an opened  file  into  the  table.           *  gawkapi.h
(gawk_api): Modify the api_get_file declaration to         return
awk_bool_t  and  add  3  new  arguments  --  a  file   descriptor
        for inserting an already opened file, and awk_input_buf_t
and         awk_output_buf_t to return info about both input  and
output.           (get_file):  Add  new  arguments  to the macro.
        * io.c (redirect_string): First arg should be const,  and
add a new         extfd arg so extensions can pass in a file that
has already  been          opened  by  the  extension.   Use  the
passed-in   fd   when   appropriate,          and  pass  it  into
two_way_open.          (redirect): Pass new fd -1  arg  to  redi-
rect_string.          (two_way_open): Accept new extension fd pa-
rameter and open it         as a socket.

2014-11-05         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  io.c (retryable): New function to indicate whether I/O
can be         retried for this file instead of throwing  a  hard
error.          (get_a_record) Check whether this file is config-
ured for retryable         I/O before returning nonstandard -2.

2014-11-03         Norihiro Tanaka       <noritnk@kcn.ne.jp>

        * re.c (research): Use dfa superset to  improve  matching
speed.

2014-11-02         Arnold D. Robbins     <arnold@skeeve.com>

        *  profile.c  (div_on_left_mul_on_right):  New  function.
        (parenthesize): Call it.

2014-10-30         Arnold D. Robbins     <arnold@skeeve.com>

        * configure: Regenerated after fix to m4/readline.m4.

        Unrelated; fixes to profiling. Thanks to  Hermann  Peifer
and         Manuel Collado for pointing out problems:

        *  profile.c  (pprint):  For Op_unary_minus, parenthesize
-(-x)         correctly.          (prec_level):  Get  the  levels
right (checked the grammar).          (is_unary_minus): New func-
tion.          (pp_concat): Add checks for unary minus; needs  to
be parenthesized.

2014-10-30          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        *    NEWS:    Mention    installation    of     /etc/pro-
file.d/gawk.{csh,sh}.

2014-10-29          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * configure.ac  (AC_CONFIG_FILES):  Add  extras/Makefile.
        *  Makefile.am  (SUBDIRS): Add extras.          * extras:
Add new subdirectory.

2014-10-29         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c: Sync with GNU grep. Again, again.

2014-10-28         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c: Sync with GNU grep. Again.

2014-10-25         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c: Sync with GNU grep.

2014-10-17         John E. Malmberg      <wb8tyw@qsl.net>

        * ext.c (close_extensions): Test for null  pointer  since
        since  this  can  be  called by signal handler before the
        pointers are initialized.

2014-10-15         Arnold D. Robbins     <arnold@skeeve.com>

        Make sane the handling of AWKPATH and AWKLIBPATH:

        1. Don't explicitly search "."; it must be  in  the  path
either          physically  or  as  null element a la the shell's
$PATH         2. If environment's value was empty,  use  built-in
default  value.           3.  Set ENVIRON["AWK*PATH"] to the path
used.

        *    io.c    (path_info):    Remove    try_cwd    member.
        (get_cwd):      Removed,      not     needed     anymore.
        (do_find_source): Don't do explicit check in current  di-
rectory.           It  must  come  from the AWKPATH or AWKLIBPATH
variable.          * main.c (path_environ): If value  from  envi-
ronment  was  empty,          set it to the default.  This is how
gawk has behaved since 2.10.

2014-10-13         Arnold D. Robbins     <arnold@skeeve.com>

        * regcomp.c (__re_error_msgid): Make  error  message  for
REG_EBRACK         more helpful - also used for unmatched [:, [.,
[=.          Thanks to Davide Brini for raising the issue.

2014-10-12         KO Myung-Hun          <komh78@gmail.com>

        Fixes for OS/2:

        * Makefile.am (install-exec-hook,  uninstall-links):  Use
$(EXEEXT).           *  getopt.h:  Redefinitions  if using KLIBC.
        * io.c (_S_IFDIR, _S_IRWXU): Define if the more  standard
versions         are available.

2014-10-12         Arnold D. Robbins     <arnold@skeeve.com>

        *  README: Remove Pat Rankin from VMS duties, per his re-
quest.

2014-10-08         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c: Sync with GNU grep.

2014-10-05         Arnold D. Robbins     <arnold@skeeve.com>

        * profile.c (pprint): Fix typo in header. Sheesh.

        Unrelated:

        * awkgram.y (mk_program): Add a  comment  that  we  don't
need to         clear the comment* variables.

2014-10-04         Arnold D. Robbins     <arnold@skeeve.com>

        *  profile.c (pp_string_fp): Fix breaklines case to actu-
ally         output the current letter. This broke at gawk 4.0.0.
Sigh.          Thanks to Bert Bos (bert@w3.org) for the report.

2014-10-03      Stephen Davies          <sdavies@sdc.com.au>

        *  awkgram.y  (program_comment):  Renamed  from comment0.
        (function_comment): Renamed from commentf.

2014-10-02         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y, profile.c: Minor white space cleanups.

2014-10-01         Arnold D. Robbins     <arnold@skeeve.com>

        Fix a few compile warnings:

        * awkgram.y (split_comment): Make static.          Gener-
al: Remove some unused variables, clean up some whitepace nits.

        * profile.c (indent): Add some braces to turn off compil-
er warnings.

2014-09-29         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        * main.c (main): In optlist, it should say "h", not "h:",
since there         is no argument for the help  option.   Thanks
to Joep van Delft for         the bug report.

2014-09-29         Arnold D. Robbins     <arnold@skeeve.com>

        * gawkapi.h: Minor edits to sync with documentation. Does
not         influence the behavior of the API.

2014-09-28         Arnold D. Robbins     <arnold@skeeve.com>

        * command.y (cmdtab): Add "where" as an alias for  "back-
trace".          Finally!

        Unrelated:

        * dfa.c: Sync with GNU grep.

2014-09-27         Arnold D. Robbins     <arnold@skeeve.com>

        *  awkgram.y (check_for_bad): Bitwise-and the bad charac-
ter with 0xFF         to avoid sign extension into a large  inte-
ger.

        Unrelated:

        * configure.ac: Add an option to enable locale letters in
identifiers.          Undocumented and subject to being rescinded
at any time in the future.          * awkgram.y (is_alpha): Actu-
al code is here.          * NEWS: Mention to  look  at  configure
--help.

        Unrelated:

        * profile.c (pprint): Use "rule(s)" instead of "block(s)"
in the         header.

2014-09-23         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y (yylex): Don't check for junk characters  in-
side         quoted strings.  Caused issues on DJGPP and Solaris.

        Unrelated:

        *  io.c  (devopen): Straighten things out with respect to
        compatibility with BWK awk.

2014-09-19         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y: Further commentary as to the treacherousness
        of isalnum and isalpha.

2014-09-15         Arnold D. Robbins     <arnold@skeeve.com>

        Finish removing use of isalpha and isalnum.

        *  awk.h (is_alpha, is_alnum, is_identchar): Add declara-
tions.             *    awkgram.y    (yylex):    Use    is_alpha.
        (is_alpha,        is_alnum):        New        functions.
        (is_identchar):  Use   is_alnum.            *   builtin.c
(r_format_tree):  Use  is_alpha,  is_alnum.           * command.y
(yylex): Use is_alpha, is_identchar.           *  ext.c  (is_let-
ter):  Use  is_alpha.          (is_identifier_char): Removed; re-
placed uses with is_identchar.           *  main.c  (arg_assign):
Use  is_alpha,  is_alnum.          * node.c (r_force_number): Use
is_alpha.

2014-09-14         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y (is_identchar): Change from simple  macro  to
function          since  use  of  isalnum() let non-ASCII letters
slip through into         identifiers.

2014-09-13      Stephen Davies          <sdavies@sdc.com.au>

        When doing pretty-printing (but not  profiling),  include
the original         comments in the output.

        General rules:

        Pretty printing:                 - Do NOT indent by a tab
                - Do NOT print  the  header  comments  ("#  BEGIN
rules",  etc.)                   - DO print the comments that are
in the program

        Profiling:                  -  DO   indent   by   a   tab
                -  DO print the header comments                 -
Do NOT print the program's original comments

        * awkgram.y (comment0, commentf): New variables that  are
pointers    to            program    and    function    comments.
        (get_comment): New function  that  retrieves  consecutive
comment    lines            and   empty   lines   as   a   unit).
        (split_comment): New function: iff  first  block  in  the
program  is  a          function  and it is preceded by comments,
take the last non-blank         line as function comment and  any
preceding lines as program comment.)

        Following token rules were changed to handle comments:

        *  awkgram.y (pattern, LEX_BEGIN, LEX_END, LEX_BEGINFILE,
LEX_ENDFILE,         action, function_prologue, statements):  Up-
date   to   handle   comments.
        Following functions were changed to handle comments:

        * awkgram.y (mk_program, mk_function,  allow_newline  and
yylex):  Update          to  handle comments. (Also fixed typo in
case '\'.)

        * profile.c (print_comment): New function to format  com-
ment  printing.           (indent,  pprint,  dump_prog, pp_func):
Changed to handle comments and          the  revised  indentation
rules.

2014-09-07         Arnold D. Robbins     <arnold@skeeve.com>

        *  awk.h: Move libsigsegv stuff to ...          * main.c:
here.  Thanks  to  Yehezkel  Bernat  for  motivating          the
cleanup.           * symbol.c (make_symbol, install, install_sym-
bol): Add const to         first parameter. Adjust decls and  fix
up uses.

2014-09-05         Arnold D. Robbins     <arnold@skeeve.com>

        Add builtin functions to FUNCTAB for consistency.

        * awk.h (Node_builtin_func): New node type.          (in-
stall_builtins): Declare new function.          * awkgram.y  [DE-
BUG_USE]:  New flag value for debug functions; they         don't
go  into  FUNCTAB.           (install_builtins):  New   function.
        *  eval.c  (nodetypes): Add Node_builtin_func.          *
interpret.h (r_interpret): Rework  indirect  calls  of  built-ins
        since  they're now in the symbol table.          * main.c
(main): Call `install_builtins'.          *  symbol.c  (install):
Adjust for Node_builtin_func.          (load_symbols): Ditto.

2014-09-04         Arnold D. Robbins     <arnold@skeeve.com>

        *  profile.c (pprint): Case Op_K_for: Improve printing of
        empty for loop header.

        Unrelated: Make indirect function calls work for built-in
and         extension functions.

        *  awkgram.y  (lookup_builtin):  New function.          *
awk.h (builtin_func_t): New  typedef.           (lookup_builtin):
Declare  it.           *  interpret.h (r_interpret): For indirect
calls, add code to         find and call builtin  functions,  and
call extension functions.

2014-09-01         Arnold D. Robbins     <arnold@skeeve.com>

        * builtin.c (do_substr): Return "" instead of null string
in case         result is passed to length() with  --lint.  Based
on discussions in         comp.lang.awk.

        Unrelated:

        *  interpret.h (r_interpret): For indirect function call,
separate         error message if lookup returned NULL. Otherwise
got a core dump.          Thanks to "Kenny McKormack" for the re-
port in comp.lang.awk.

2014-08-27         Arnold D. Robbins     <arnold@skeeve.com>

        * configure.ac: Add test for strcasecmp.          *  reg-
comp.c:  Remove  special  case  code  around use of strcasecmp().
        * replace.c: Include missing/strncasecmp.c if either str-
casecmp()         or strncasecmp() aren't available.

2014-08-26         Arnold D. Robbins     <arnold@skeeve.com>

        * regcomp.c, regex_internal.c: Sync with GBLIC. Why not.

        Unrelated:

        Remove  support for MirBSD. It uglified the code too much
        for no discernible gain.

        * configure.ac: Remove check for  MirBSD  and  define  of
        LIBC_IS_BORKED.           *  dfa.c: Remove code depending
on LIBC_IS_BORKED.           *  main.c:  Ditto.           *  reg-
comp.c: Ditto.          * NEWS: Updated.

2014-08-24         Arnold D. Robbins     <arnold@skeeve.com>

        *  regex.h:  Remove underscores in names of parameters in
function         declarations. Tweak names as needed.

2014-08-20         Arnold D. Robbins     <arnold@skeeve.com>

        * node.c (parse_escape): Max of 2 digits after

2014-08-18         Arnold D. Robbins     <arnold@skeeve.com>

        * symbol.c: General formatting cleanup.

2014-08-15         Arnold D. Robbins     <arnold@skeeve.com>

        * main.c (usage): Adjust whitespace for -L and  add  "in-
valid"         as a possible value for it.  Report from Robert P.
J. Day         <rpjday@crashcourse.ca>.

2014-08-14         Arnold D. Robbins     <arnold@skeeve.com>

        * Makefile.am (SUBDIRS): Put awklib after doc so that ex-
amples         get extracted when the doc changes.

2014-08-13         Arnold D. Robbins     <arnold@skeeve.com>

        *  builtin.c (do_sub): Move initial allocation of the re-
placement         string down towards code to do the replacement,
with  a  (we hope)         better guesstimate of how much to ini-
tially allocate. The idea         is to avoid  unnecessary  real-
loc() calls by making a better guess         at how much to allo-
cate.  This came up in an email discussion         with Tom Dick-
ey about mawk's gsub().

2014-08-12         Juergen Kahrs <jkahrs@users.sourceforge.net>

        *  cmake/configure.cmake:          * cmake/package.cmake:
Copyright    update.             *    README.cmake:             *
README_d/README.cmake: Moved file.

2014-08-12         Arnold D. Robbins     <arnold@skeeve.com>

        OFS  being set should rebuild $0 using previous OFS if $0
        needs to be rebuilt. Thanks to Mike Brennan for  pointing
this out.

        *  awk.h  (rebuild_record):  Declare.           *  eval.c
(set_OFS): If not being called from var_init(), check          if
$0  needs  rebuilding.  If so, parse the record fully and rebuild
it.          Make OFS point to a separate copy of the new OFS for
next  time,  since         OFS_node->var_value->stptr was already
updated at this point.          *  field.c  (rebuild_record):  Is
now extern instead of static.          Use OFS and OFSlen instead
of the value of OFS_node.

        Unrelated:

        * Makefile.am (RM): Define for makes that don't have  it,
        such  as  on OpenBSD.  Thanks to Jeremie Courreges-Anglas
        <jca@wxcvbn.org> for the report.

2014-08-05         Arnold D. Robbins     <arnold@skeeve.com>

        Bug fix: For MPFR sqrt(), need to set precision of result
to be         the same as that of the argument. Doesn't hurt oth-
er functions.           See  test/mpfrsqrt.awk.  Thank  to  Katie
Wasserman <katie@wass.net>         for the bug report.

        * mpfr.c (do_mpfr_func): New function. Runs code for MPFR
functions         while still enabling debugging. Add  call  here
to  mpfr_set_prec().          Original code from SPEC_MATH macro.
        (SPEC_MATH): Change macro to call do_mpfr_func().

        Next MPFR bug fix: The % operator  gave  strange  results
for  negative          numerator. Thanks again to Katie Wasserman
for the bug report.

        *  mpfr.c  (mpg_mod):  Use   mpz_tdiv_qr()   instead   of
mpz_mod().  From          the  GMP  doc,  mpz_mod()  should  have
worked; it's not clear why         it doesn't.

2014-08-03         Arnold D. Robbins     <arnold@skeeve.com>

        * builtin.c (format_tree): Don't  need  to  check  return
value  of          wctombr  for  -2.  Thanks to Eli Zaretskii for
pointing this out.

        Unrelated:

        * gawkapi.h: Fix doc for API get_record -  errcode  needs
to         be greater than zero.          * interpret.h (r_inter-
pret): Move setting of ERRNO to here, from  ...           *  io.c
(inrec): ... here. Makes the code cleaner.

2014-08-03          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * awkgram.y (getfname): Match on either ptr  or  ptr2  so
--profile         will work in -M (MPFR bignum) mode.

2014-07-31         Arnold D. Robbins     <arnold@skeeve.com>

        *  builtin.c (format_tree): Make %c handling more sane on
Windows.          Rework the lint messages.

        Unrelated:

        * dfa.c: Sync with GNU grep. Mainly white  space  differ-
ences.

        Unrelated:

        *  mpfr.c  (cleanup_mpfr):  New  function  to  deallocate
_mpf_t1         and  _mpf_t2;  removes  some  valgrind  warnings.
        *   awk.h  (cleanup_mpfr):  Add  declaration.           *
main.c (main): Add call to `cleanup_mpfr'.

        Fix memory leak:

        * mpfr.c (do_mpfr_div): Add unref to denominator and  nu-
merator          to  not  leak  memory. Thanks to Katie Wasserman
<katie@wass.net>         for isolating the problem to  that  rou-
tine.

2014-07-25         Arnold D. Robbins     <arnold@skeeve.com>

        *  main.c (main): Add a warning message if -M is used and
gawk was         compiled without MPFR/GMP.

2014-07-24         Arnold D. Robbins     <arnold@skeeve.com>

        * main.c (usage): Put text  for  `-n'  *after*  text  for
`-m'.           Report  from  Robert  P.  J.  Day  <rpjday@crash-
course.ca>.

        Fix problems with I/O errors  reported  by  Assaf  Gordon
        <assafgordon@gmail.com>:

        * io.c (inrec): Change type to bool to make calling easi-
er. Add         check in non-EOF case for error, and if  so,  re-
turn  false.           Update  ERRNO  in case there is an ENDFILE
block.          * awk.h  (inrec):  Change  type  in  declaration.
        *  interpret.h  (r_interpret):  Change call of inrec() to
boolean         notation.

2014-07-10         Arnold D. Robbins     <arnold@skeeve.com>

        New `div()' function to do integer division  and  remain-
der;          mainly  useful for use with GMP integers. Thanks to
        Katie Wasserman <katie@wass.net> for the suggestion.

        * awk.h (do_div,  do_mpfr_div):  Declare  new  functions.
        *  builtin.c  (do_div):  New  function.          * mpfr.c
(do_mpfr_div): New function.          * awkgram.y (tokentab): New
entry.          (snode): Add check for do_div/do_mpfr_div to make
3rd arg         be an array.          * NEWS: Updated.          *
TODO: Updated.

2014-07-10         Arnold D. Robbins     <arnold@skeeve.com>

        *  awkgram.y (check_for_bad): New routine to do the fatal
message,         with smarter checking.          (nextc): Call it
as appropriate.

        * builtin.c (format_tree): Add check for bad returns from
mbrlen         to avoid  trying  to  malloc  (size_t)  -1  bytes.
Thanks to         mail.green.fox@gmail.com for the bug report.

2014-07-03         Arnold D. Robbins     <arnold@skeeve.com>

        *  awkgram.y (nextc): Add bool check_for_bad parameter to
check          for  bad  characters  in   the   source   program.
        (yylex): Adjust calls.

2014-06-24         Arnold D. Robbins     <arnold@skeeve.com>

        * main.c (main): The --pretty-print option no longer runs
the           program.    This   removes   the   need   for   the
GAWK_NO_PP_RUN   environment   var.            *  NEWS:  Updated.
        * TODO: Updated.

2014-06-22             Paul     Eggert               <eggert@pen-
guin.cs.ucla.edu>

        Bring in from GNULIB:

        regex: fix memory leak in compiler         Fix by Andreas
Schwab       in:               https://sourceware.org/ml/libc-al-
pha/2014-06/msg00462.html          * lib/regcomp.c (parse_expres-
sion): Deallocate partially         constructed tree  before  re-
turning error.

2014-06-19         Arnold D. Robbins     <arnold@skeeve.com>

        *  builtin.c  (do_sub): Add more info to leading comment.
        Add some whitespace in the code.

2014-06-08         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c: Sync with GNU grep.

2014-06-03         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c (mbs_to_wchar): Define a macro if not MBS.

2014-05-29         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c: Sync with GNU grep.

2014-05-26         Arnold D. Robbins     <arnold@skeeve.com>

        * io.c (inetfile): Change return type to bool.  Wrap code
        with ifdef HAVE_SOCKETS so that it'll compile on DJGPP.

2014-05-22          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        Allow any redirected getline inside BEGINFILE/ENDFILE.

        * awkgram.y (LEX_GETLINE): Only require a redirection and
not  also         a variable if getline is in a BEGINFILE or END-
FILE rule.          *  interpret.h  (Op_K_getline_redir):  Remove
check and fatal error.

2014-05-20         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c (dfaexec): Minor sync with GNU grep.

2014-05-14         Arnold D. Robbins     <arnold@skeeve.com>

        *  custom.h  (_GL_PURE):  Move  definition to here. Sigh.
        * dfa.h, dfa.c: Sync with GNU grep. Sigh.

        Unrelated:

        * custom.h: Remove stuff for Ultrix 4.3. No one has  such
        systems anymore; this just got missed earlier.

2014-05-11         Arnold D. Robbins     <arnold@skeeve.com>

        *  debug.c  (do_eval):  Repair  fix of 2014-05-09 and use
        assoc_remove to take @eval out  of  the  function  table.
        * symbol.c: Fix a comment.  This file needs some work.

2014-05-10         Arnold D. Robbins     <arnold@skeeve.com>

        *  io.c  (get_a_record):  Finish  TERMNEAREND handling in
case         we don't have a regular file but aren't going to get
more data.          Added some additional comments.

2014-05-09         Arnold D. Robbins     <arnold@skeeve.com>

        * debug.c (do_eval): Don't free `f' which points into the
context         that was previously freed. Bug  reported  by  Jan
Chaloupka          <jchaloup@redhat.com>.   Apparently introduced
with move to         SYMTAB and FUNCTAB, but only  showed  up  on
Fedora  20  and  Ubuntu  14.04,         which have a newer glibc.
        (do_eval): Fix a memory leak seen by valgrind  on  Fedora
20 and         Ubuntu 14.04: the new SRCFILE that is added wasn't
released.

        Unrelated:

        * io.c (get_a_record): Handle return of TERMNEAREND  when
the          entire  file has been read into the buffer and we're
using  a          regex  for  RS.  Bug  report  by   Grail   Dane
<grail69@hotmail.com>.

2014-05-04         Arnold D. Robbins     <arnold@skeeve.com>

        *  debug.c (debug_prog): Change check for GAWK_RESTART so
that it         actually works. Bug fix: run command in  debugger
would start         over again but not actually start running the
program.

2014-04-25         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  io.c (two_way_open): In forked child, reset SIGPIPE to
SIG_DFL.          Fixes problems with "broken pipe"  errors  from
child  processes,          restoring  4.1.0 and earlier behavior.
Thanks to Daryl F         <wyatt@prairieturtle.ca>  for  the  re-
port.          (gawk_popen): Ditto.

2014-04-25         Arnold D. Robbins     <arnold@skeeve.com>

        *  dfa.h, dfa.c: Merge with GNU grep; lots of forward mo-
tion.

2014-04-24         Arnold D. Robbins     <arnold@skeeve.com>

        Update xalloc.h for pending merge with dfa.

        * xalloc.h (xstrdup): Implement this.           (x2nreal-
loc): Incorporate changed logic from GNULIB.

2014-04-20          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * io.c (struct inet_socket_info):  Define  new  structure
        for    use   in   parsing   special   socket   filenames.
        (inetfile): Parse all components of  the  special  socket
filename          into the struct inet_socket_info.  Returns true
only if it is a         valid socket fliename, unlike the  previ-
ous  version  which  checked         for the '/inet[46]?/' prefix
only.          (redirect): Patch to use updated inetfile()  func-
tion.          (devopen): Remove logic to parse socket filenames,
since this has         been moved into the  inetfile()  function.
        (two_way_open): Update args to inetfile().

2014-04-20         Arnold D. Robbins     <arnold@skeeve.com>

        * builtin.c (do_rand): Make calls to random() in predict-
able         order  to  avoid  order  of  evaluation  differences
amongst    compilers.            Thanks   to   Anders   Magnusson
<ragge@ludd.ltu.se> (of the PCC team)         for the suggestion.

2014-04-18         Arnold D. Robbins     <arnold@skeeve.com>

        * configure.ac: Change adding of -export-dynamic for  GCC
to be         -Wl,-export-dynamic, which then works for PCC also.

2014-04-11         Arnold D. Robbins     <arnold@skeeve.com>

        *  io.c  (closemaybesocket):  Define if not defined, e.g.
building         without socket code. Thanks to  dave.gma@google-
mail.com (Dave Sines)         for the report.

2014-04-08         Arnold D. Robbins     <arnold@skeeve.com>

        * 4.1.1: Release tar ball made.

2014-04-08         Arnold D. Robbins     <arnold@skeeve.com>

        * README: Update.          * configure.ac: Bump version.

2014-04-03         Arnold D. Robbins     <arnold@skeeve.com>

        * regcomp.c (parse_bracket_exp): Move a call to `re_free'
inside         an ifdef. Makes the code marginally cleaner.

2014-03-30         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c: Sync with GNU grep.

2014-03-28         Arnold D. Robbins     <arnold@skeeve.com>

        * configure.ac: Remove duplicate AC_HEADER_TIME  and  re-
arrange         order of macros some. May help on older systems.

2014-03-23         Arnold D. Robbins     <arnold@skeeve.com>

        *  dfa.c: Move include of dfa.h around for correct build-
ing         on Irix. Thanks to Nelson H.F. Beebe for the report.

        Unrelated:

        * .gitignore: Simplify .dSYM pattern for Mac OS X.

2014-03-21         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c (using_simple_locale): Add ifdefs in  case  there
is  no          locale support at all. Thanks to Scott Deifik for
the report.

        Unrelated:

        * main.c (UPDATE_YEAR): Set to 2014.

2014-03-17         Arnold D. Robbins     <arnold@skeeve.com>

        *  .gitignore:  Add  .dSYM  directories  for  Mac  OS  X.
        Thanks to Hermann Peifer for the suggestion.

2014-03-10         Arnold D. Robbins     <arnold@skeeve.com>

        *  dfa.h,  dfa.c:  Sync  with grep. Yet again.          *
regex_internal.c  (built_wcs_upper_buffer,   build_upper_buffer):
        Fixes from GNULIB for mixed case matching on Mac OS X.

        Unrelated:

        *  builtin.c  (format_tree): Smarten handling of %' flag.
Always         pass it in for floating point formats.  Then  only
add  the          thousands_sep  if there is one. Also, allow for
thousands_sep         to be a string,  not  just  one  character.
Thanks to Michal Jaegermann         for the report.

2014-03-08          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * gawkapi.c (api_impl): Add  memory  allocation  function
pointers.           *  gawkapi.h  (GAWK_API_MINOR_VERSION): Bump.
        (gawk_api_t): Add  memory  allocation  function  pointers
api_malloc,           api_calloc,   api_realloc,   and  api_free.
        (gawk_malloc, gawk_calloc, gawk_realloc, gawk_free):  New
macros.           (emalloc):  Replace  malloc  with  gawk_malloc.
        (erealloc): Replace erealloc with gawk_erealloc.

2014-03-05         Arnold D. Robbins     <arnold@skeeve.com>

        Straighten out enumerated types some more.

        * awk.h  (add_srcfile):  Fix  type  of  first  parameter.
        *   awkgram.y   (add_srcfile,   do_add_srcfile):   Ditto.
        * cmd.h (A_NONE): New enum nametypeval.           *  com-
mand.y   (argtab):  Use  it  in  final  value.           *  ext.c
(make_builtin):  Use   awk_false,   awk_true.            *   io.c
(init_output_wrapper): Use awk_false.

        Unrelated:

        *  debug.c (do_commands): Initialize num to silence warn-
ings.          Thanks to Michal Jaegermann.

        Unrelated:

        * builtin.c (do_mktime): Change lint warning for  minutes
to          check  against  59, not 60.  Thanks to Hermann Peifer
for the report.

2014-03-03         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c: Sync with grep. Yet again.

2014-02-28         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c: Sync with grep. Looks like good improvement with
        respect to bracket expressions.

2014-02-27         Arnold D. Robbins     <arnold@skeeve.com>

        Fixes  for  enum/int mismatches as warned by some compil-
ers.

        * awk.h (ANONE): New enum for array  sorting.           *
array.c (assoc_list): Use it.          * builtin.c (format_tree):
New  MP_NONE  value.           *  gawkapi.c:  Use  awk_false  and
awk_true everywhere instead of         false and true.

2014-02-26         Arnold D. Robbins     <arnold@skeeve.com>

        *  configure.ac:  Set up do-nothing extension/Makefile on
        MirBSD also.

2014-02-21         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.h, dfa.c (parse_bracket_exp): Sync with grep.

2014-02-20         Arnold D. Robbins     <arnold@skeeve.com>

        * regex.h, regex.c,  regex_internal.c,  regex_internal.h:
Sync          with  GLIBC.  Mainly  copyright updates.          *
getopt.c, getopt.h, getopt1.c,  getopt_int.h:  Ditto.           *
dfa.c  (parse_bracket_exp):  Sync  with grep, where they restored
        the buggy code.  Sigh.

        Unrelated:

        * NEWS: Typo fix.          *  interpret.h  (r_interpret):
Init a variable for BEGINFILE to avoid         compiler warnings.
Thanks to Michal Jaegermann.

2014-02-15         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.c, command.c: Regenerated - Bison 3.0.2.

2014-02-04         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c (to_uchar): Make use  of  this.  Syncs  with  GNU
grep.

2014-02-03         Arnold D. Robbins     <arnold@skeeve.com>

        *  awkgram.y  (negate_num): Bracket `tval' in #ifdef MPFR
since it's         only used in that code.

2014-01-31         Arnold D. Robbins     <arnold@skeeve.com>

        * Makefile.am (dist-hook): Improve  creation  of  pc/con-
fig.h.  We          have to jump through a lot of hoops for 'make
distcheck' to         actually work.

2014-01-30         Arnold D. Robbins     <arnold@skeeve.com>

        * Makefile.am (dist-hook): Improve  creation  of  pc/con-
fig.h to copy         the new file into the distribution directo-
ry being created.          Also, put  the  temporary  files  into
/tmp.

2014-01-28         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y (negate_num): If just a double, return. Fixes
a bug         that showed up on 32-bit systems with MPFR.  Thanks
to  Eli  Zaretskii          and  Corinna Vinschen for the report.
Also, free the MPZ integer.          Thanks to valgrind  for  the
report.

        Unrelated:

        *  dfa.c: Sync with GNU grep - removed some special cased
code         for grep.

2014-01-24         Arnold D. Robbins     <arnold@skeeve.com>

        * configure.ac, field.c: Update copyright year.

2014-01-19         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y (negate_num): Handle the case of -0 for MPFR;
the  sign          was getting lost. Thanks to Hermann Peifer for
the report.

2014-01-18         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c (parse_bracket_exp): Sync with  GNU  grep,  which
now  uses          gawk's  code  for  RRI in single-byte locales!
Hurray.

2014-01-16         Arnold D. Robbins     <arnold@skeeve.com>

        * configure.ac: For z/OS, restore creation of  do-nothing
        Makefile in extension directory.

2014-01-14         Arnold D. Robbins     <arnold@skeeve.com>

        *  field.c (do_split): Make sure split() gets FS value if
no         third arg even after FPAT was set. Thanks to Janis Pa-
panagnou         for the report.

2014-01-13         Arnold D. Robbins     <arnold@skeeve.com>

        * README: Fix John Malmberg's email address.

2014-01-12         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y:  Update copyright year.          (func_use):
Simplify code.           *  command.y:   Update  copyright  year.
        * ext.c:  Update copyright year.          (make_builtin):
Small simplification.          (make_old_builtin): Make code con-
sistent     with     make_builtin(),    add            call    to
track_ext_func().          * bootstrap.sh: Update copyright year.
Remove  touch  of  version.c         since that file is no longer
autogenerated.

2014-01-07         Arnold D. Robbins     <arnold@skeeve.com>

        * command.y (next_word): Move  into  ifdef  for  HAVE_LI-
BREADLINE,          since it's only used by that code.          *
ext.c (load_old_ext): Minor improvements.

2014-01-03         Arnold D. Robbins     <arnold@skeeve.com>

        *  config.guess,   config.rpath,   config.sub,   depcomp,
        install-sh:  Updated.           * dfa.h, dfa.c: Sync with
GNU grep; comment fix and copyright year.          * NEWS: Updat-
ed some, including copyright year.

2013-12-26         Arnold D. Robbins     <arnold@skeeve.com>

        * README: Add John Malmberg for VMS.

2013-12-24         Arnold D. Robbins     <arnold@skeeve.com>

        *  getopt.h:  Add `defined(__sun)' to list of system that
do get to         include stdlib.h.  Needed for  Illumos.  Thanks
to         Richard Palo <richard.palo@free.fr> for the report.

2013-12-21         Mike Frysinger        <vapier@gentoo.org>

        *  configure.ac: Add --disable-extensions flag to control
        compiling  extensions.    Better   for   cross-compiling.
        (AC_CANONICAL_HOST):  Added.  Changed case statements ap-
propriately.           *  Makefile.am  (check-for-shared-lib-sup-
port):  Removed.           (check-recursive,  all-recursive): Re-
moved.

2013-12-21         Arnold D. Robbins     <arnold@skeeve.com>

        *  config.guess:  Updated.           *  configure,  aclo-
cal.m4: Updated based on automake 1.13.4.

2013-12-19         Arnold D. Robbins     <arnold@skeeve.com>

        * regexec.c (re_search_internal): Make sure `dfa' pointer
is         not NULL before trying to dereference it.

2013-12-16         Arnold D. Robbins     <arnold@skeeve.com>

        * configure.ac (AC_FUNC_VPRINTF): Remove. Not  needed  on
current          systems.          * awk.h (HAVE_VPRINTF): Remove
check.

2013-12-12         John E. Malmberg      <wb8tyw@qsl.net>

        *  io.c  (redirect):  Add  additional  VMS  error  codes.
        (nextfile): Retry open after closing some files.

2013-12-10          Scott  Deifik           <scottd.mail@sbcglob-
al.net>

        * io.c (closemaybesocket): Add definition for DJGPP.

2013-12-10         Arnold D. Robbins     <arnold@skeeve.com>

        * awk.h (Floor, Ceil): Remove declarations and VMS redef-
initions.           *  floatcomp.c  (Floor,  Ceil):  Removed, not
needed. Move bracketing         ifdef to the  top  of  the  file.
        * builtin.c (double_to_int): Use floor() and ceil().

2013-12-07         Arnold D. Robbins     <arnold@skeeve.com>

        *  regex_internal.h  (__attribute__):  Define to empty if
not GCC.          * custom.h (__attribute__): Remove the  defini-
tion from here; the         right place was regex_internal.h.

2013-12-06         Arnold D. Robbins     <arnold@skeeve.com>

        No   need   to   generate   version.c   from  version.in.
        Thanks to John E. Malmberg <wb8tyw@qsl.net> for the  sug-
gestion.

        *  version.in:  Removed.           * version.c: Use PACK-
AGE_STRING directly.          * Makefile.am (EXTRA_DIST):  Remove
version.in.            (distcleancheck_listfiles):   Remove  this
rule.          (MAINTAINERCLEANFILES):  Remove  this  definition.
        (version.c): Remove the rule to create it.

2013-12-05         Arnold D. Robbins     <arnold@skeeve.com>

        Fixes for Z/OS.

        *  custom.h  (__attribute__): Define to empty.          *
dfa.c  (parse_bracket_exp):  Add  a  cast  to  quiet  a  warning.
        * regex.c: Correctly bracket include of <sys/param.h>.

        Unrelated:

        * debug.c (find_rule): Add a FIXME comment.

2013-12-03         John E. Malmberg     <wb8tyw@qsl.net>

        *  io.c  (redirect):  Add  additional  VMS  error code to
check.          (do_find_source): Append "/" if not a  VMS  file-
name.

2013-12-01          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * main.c (optab): Sort by long option name.

2013-11-27         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        * main.c (optab): Add entry for --include.

2013-11-23         Arnold D. Robbins     <arnold@skeeve.com>

        *  dfa.c:  Merge  from grep; minor fixes in how bit twid-
dling         is done.

2013-11-01         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c (lex): Reset laststart so that stuff like  works.
        Fix from grep.

2013-10-31         Arnold D. Robbins     <arnold@skeeve.com>

        * builtin.c (efwrite): If write error to stdout is EPIPE,
        die silently.  Thanks to Hermann Peifer for helping  find
this.

2013-10-22         Arnold D. Robbins     <arnold@skeeve.com>

        Revise  error messages when writing to standard output or
standard         error to ignore EPIPE.  Add the ability based on
an  environment          variable to get the source file and line
number.

        *    awk.h    (r_warning):    Renamed    from    warning.
        (warning):  New  macro  to set location and call warning.
        * io.c  (flush_io):  Print  errors  only  if  not  EPIPE.
        (close_io):  Ditto.          * main.c (lintfunc): Init to
r_warning.            (main):   Enhance   explanatory    comment.
        (usage):  Print errors only if not EPIPE.          (copy-
left): Ditto.          * msg.c (err): Make printing  srcfile  and
srcline  depend  upon          GAWK_MSG_SRC environment variable.
        (r_warning): Renamed from warning.

2013-10-17         Arnold D. Robbins     <arnold@skeeve.com>

        * main.c (main): Ignore SIGPIPE. See the comment  in  the
code.          Thanks to Alan Broder for reporting the issue.

        Unrelated:

        *  rand.c  (do_rand):  Fix  computation and loop checking
against         1.0 to use do..while.

2013-10-16         Arnold D. Robbins     <arnold@skeeve.com>

        Make -O work again.  Turns out that  C99  bool  variables
        are clamped to zero or one.

        *  main.c  (do_optimize): Init to false.          (main):
Set do_optimize to true on -O.          *  eval.c  (setup_frame):
Change  all uses of do_optimize to be         a boolean check in-
stead of a test > 1.          * awkgram.y: Ditto.          (opti-
mize_assignment):   Remove   check   against   do_optimize  since
        it was inited to true anyway.

        Unrelated:

        * re.c (resetup): Add a comment about the joy  of  syntax
bits.

        Unrelated:

        *  builtin.c  (do_rand):  If  result is exactly 1.0, keep
trying.          Thanks to Nelson Beebe.

2013-10-10         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c (lex): Sync with GNU grep. Handle multibyte and

        Unrelated:

        * awk.h [ARRAY_MAXED]: Fix value of this  and  subsequent
flags          after  addition  of  NULL_FIELD.          * eval.c
(flags2str): Add NULL_FIELD. Duh.

2013-10-09         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y  (mk_assignment):  Rework  switch  to  handle
Op_assign,         and to provide a better error message upon un-
known opcode.

2013-09-28         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c: Sync with GNU grep.

2013-09-25         Arnold D. Robbins     <arnold@skeeve.com>

        * builtin.c (do_rand): Make the  result  more  random  by
calling          random()  twice.  See  the  comment in the code.
Thanks to         Bob  Jewett  <jewett@bill.scs.agilent.com>  for
the report and         the fix.

2013-09-24         Arnold D. Robbins     <arnold@skeeve.com>

        *  debug.c (find_rule): Handle case where lineno is zero.
Can happen         if break is given without a line number  on  a
current  line.  Thanks         to Ray Song <i@maskray.me> for the
report.

2013-09-19         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c (parse_bracket_exp): Use code from grep  to  keep
things  within          range (updates change of 2013-09-08). Fix
whitespace in one of the         gawk-only additions.

2013-09-13         Arnold D. Robbins     <arnold@skeeve.com>

        Fix  use  of   NF   after   it's   extended,   e.g.   see
test/nfloop.awk.

        *   awk.h  (NULL_FIELD):  New  flag          *  builtin.c
(do_print_rec): Check f0->flags instead of  if          equal  to
Nnull_string.              *    eval.c    (r_get_field):    Check
(*lhs)->flags instead of  if          equal  to  Nnull_string  or
Null_field.          * field.c (init_fields): Init field zero and
Null_field with         NULL_FIELD flag.           (set_NF):  Set
parse_high_water  =  NF in case NF extended past the         end.
This is the actual bug fix.

2013-09-08         Arnold D. Robbins     <arnold@skeeve.com>

        Fixes based on reports from a static code checker. Thanks
to         Anders Wallin for sending in the list.

        *  array.c  (asort_actual):  Free  list if it's not NULL.
        * builtin.c (do_sub): Set buf to NULL and  assert  on  it
before   using           it.           *  cint_array.c  (cint_ar-
ray_init): Clamp any value of NHAT from  the          environment
such   that  it  won't  overflow  power_two_table  when  used  as
        an index.           *  dfa.c  (parse_bracket_exp):  Check
that  len  is  in  range  before  using  it         to index buf.
        * getopt.c (_getopt_internal_r): Change call to alloca to
use malloc.          * io.c (socket_open): Init read_len to zero.
        (two_way_open): Upon failure to fork, close the slave  fd
also.           *  re.c  (research):  Init  try_backref to false.
        * regcomp.c (build_range_exp): Free any items  that  were
allocated   in           the  case  where  not  all  items  were.
        (build_charclass_op): Same. Init br_token  to  zero  with
memset.          (create_tree): Init token t to zero with memset.
        * regex_internal.c (re_dfa_add_node): Free any items that
were          allocated  in  the  case  where not all items were.
        * symbol.c (destroy_symbol): On default, break,  to  fall
into releasing         of resources.

2013-08-29         Arnold D. Robbins     <arnold@skeeve.com>

        * debug.c (HAVE_HISTORY_LIST): Move checks and defines to
the top.          (do_save, serialize): Adjust #if checks to  de-
pend  on  having both         readline and the history functions.
Needed for Mac OS X whose         native readline is a  very  old
version.  Sigh.          * configh.in, configure: Regenerated due
to change in m4/readline.m4.          Issue reported  by  Hermann
Peifer and Larry Baker.

        Unrelated:

        * getopt.c: Sync with GLIBC, changes are minor.

        Unrelated:

        *  dfa.c: Sync with version in grep. Primarily whitespace
/ comment         wording changes.

2013-08-26         Arnold D. Robbins     <arnold@skeeve.com>

        * regcomp.c (parse_dup_op): Remove RE_TOKEN_INIT_BUG code
(change of         Feb 19 2005) since it's no longer needed.

        *  regcomp.c (re_fastmap_iter): Undo addition of volatile
from         Jan 18 2007; no longer needed and is one less change
to have to         maintain against the upstream.

        * regcomp.c, regex.h, regex_internal.h: Sync with GLIBC.

2013-08-22         Arnold D. Robbins     <arnold@skeeve.com>

        *  str_array.c (env_store): If the new value being stored
is NULL,         pass in "" instead. Avoids core dump on  Mac  OS
X.          Thanks to Hermann Peifer for the bug report.

2013-08-20         Arnold D. Robbins     <arnold@skeeve.com>

        *   nonposix.h:   New   file.   Contains   FAKE_FD_VALUE.
        * awk.h: Include it if MinGW  or  EMX.           *  Make-
file.am (base_sources): Add nonposix.h.

2013-08-18         Arnold D. Robbins     <arnold@skeeve.com>

        Reflect updates to ENVIRON into the real environment.

        *  awk.h  (init_env_array):  Add  declaration.          *
main.c (load_environ): Call  init_env_array.           *  str_ar-
ray.c   (env_remove,   env_store,   env_clear,   init_env_array):
        New  functions.           (env_array_func):   New   array
vtable.

2013-08-18         Arnold D. Robbins     <arnold@skeeve.com>

        *  array.c  (force_array): Set symbol->xarray to NULL be-
fore          initing  the  array   if   it   was   Node_var_new.
        (null_array):   Restore   assert,   undoing   change   of
2013-05-27.

2013-08-15         Arnold D. Robbins     <arnold@skeeve.com>

        * debug.c (print_memory): Fix whitespace / indentation.

2013-08-02         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y (append_rule): Add attempt to insert any com-
ment         before a rule. Commented out at the moment.

2013-07-30         Arnold D. Robbins     <arnold@skeeve.com>

        * awk.h (enum opcodeval): Add Op_comment.          * awk-
gram.y  (comment):   New   variable   to   hold   comment   text.
        (statement):  Add  saved  comments  to lists being built.
        (allow_newline): Save comment text if  necessary.  Append
if   have           existing   text.            (yylex):   Ditto.
        *   debug.c   (print_instruction):   Handle   Op_comment.
        *  eval.c (optypes): Add entry for Op_comment.          *
interpret.h (r_interpret): Ditto.          * profile.c  (pprint):
For Op_comment, print the comment text.

2013-07-24         Arnold D. Robbins     <arnold@skeeve.com>

        *  io.c  (FAKE_FD_VALUE):  Move  definition from here ...
        * awk.h (FAKE_FD_VALUE): ... to here.  Fixes  compilation
on MinGW.

2013-07-08         Arnold D. Robbins     <arnold@skeeve.com>

        *  io.c (get_a_record): Change `min' to `MIN' for consis-
tency with         other files and general practice.

2013-07-07         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  configure.ac  (AC_CHECK_FUNCS): Check for sigprocmask.
        * io.c (wait_any): If  sigprocmask  is  available,  block
signals instead         of ignoring them temporarily.

2013-07-05          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * gawkapi.h (gawk_api): Document  that  the  api_get_file
function  will  not         access the file type and length argu-
ments if the file name is empty.

2013-07-04         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        * configure.ac (AC_CHECK_FUNCS): Add a check for waitpid.
        * io.c (wait_any): Enhance comment to explain why we loop
reaping  all          exited  children when the argument is zero.
When available, use waitpid         with WNOHANG to avoid  block-
ing.   Remove  my  previous incorrect patch to         exit after
reaping  the  first  child.   The   function   is   intended   to
        wait  for  all  children,  since we are not careful about
reaping children         as soon as they die.

2013-07-02         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  gawkapi.h  (gawk_api):  Remove  unused api_lookup_file
hook.          (lookup_file): Remove associated macro.          *
gawkapi.c     (api_lookup_file):    Remove    unused    function.
        (api_impl):  Remove unused api_lookup_file hook.

2013-07-02         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        * awkgram.y (main_beginfile): Declare new global INSTRUC-
TION *.          (parse_program): Set main_beginfile to point  to
the  BEGINFILE          instruction  block.           * gawkapi.c
(api_get_file): After nextfile starts a new file,         we need
to  run  the BEGINFILE actions.  We retrieve the         instruc-
tion pointer from main_beginfile and execute it until          we
reach the Op_after_beginfile opcode.  We then run after_beginfile
        manually and restore the value of currule and source.

2013-07-04         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  gawkapi.h (awk_element_t): Add comment indicating that
the  array          element  index  will  always  be  a   string!
        *  gawkapi.c (api_flatten_array): When converting the in-
dex to an awk         value, request a string  conversion,  since
we  want  the  indices to         appear as strings to the exten-
sions.  This makes the call  to          force_string  redundant,
since  node_to_awk_value does that internally         when we re-
quest a string.

2013-07-02         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  eval.c (update_ERRNO_string): Set PROCINFO["errno"] to
0.          * io.c (inrec): Since get_a_record may now return -2,
be  sure          to  throw  an  error  in  that  case  as  well.
        (wait_any): Fix what appears to be a bug.  The old  logic
repeatedly          called  wait until it failed.  When a process
has multiple children,         this causes it to stall until  all
of  them  have exited.  Instead,         we now exit the function
after the first successful wait call.          (do_getline_redir,
do_getline):  Handle  case where get_a_record         returns -2.
        (errno_io_retry): New function to decide whether  an  I/O
operation  should          be  retried.           (get_a_record):
When read returns an error, call errno_io_retry to         decide
whether  the  operation  should  be  retried.   If  so, return -2
        instead of setting the IOP_AT_EOF flag.

2013-07-01         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  eval.c (update_ERRNO_int, unset_ERRNO): Update PROCIN-
FO["errno"].

2013-06-30         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        * awk.h (redirect_string): Declare new function that pro-
vides API access         to the redirection mechanism.          *
gawkapi.h  (GAWK_API_MINOR_VERSION): Bump from 0 to 1 since 2 new
        hooks were added to the api.          (gawk_api_t): Add 2
new      functions      api_lookup_file     and     api_get_file.
        (lookup_file, get_file): New macros to wrap the  new  API
functions.           *  gawkapi.c (curfile): Declare this extern,
since  it  is  needed          by   lookup_file   and   get_flie.
        (api_lookup_file): Find an open file using curfile or ge-
tredirect().          (api_get_file): Find or open a  file  using
curfile    or    redirect_string().             (api_impl):   Add
api_lookup_file  and   api_get_file.            *   io.c   (redi-
rect_string):   Renamed   from  redirect  and  changed  arguments
        to take a string instead of a 'NODE *'.  This  allows  it
to  be  called          through  the  API's  new  get_file  hook.
        (redirect): Now implemented  by  calling  redirect_string
backend function.

2013-07-04         Arnold D. Robbins     <arnold@skeeve.com>

        *  builtin.c  (format_tree):  Fixes for %c with multibyte
characters         and field width > 1. Bugs reported  by  Nethox
<nethox@gmail.com>.

2013-07-02         Arnold D. Robbins     <arnold@skeeve.com>

        *  profile.c  (pp_string):  Add a call to chksize and fix
another.          Avoids valgrind errors on profile5 test. Thanks
to Andrew         Schorr for the report.

2013-06-27         Arnold D. Robbins     <arnold@skeeve.com>

        *  awkgram.y:  Minor whitespace cleanup, remove redundant
ifdef.

2013-06-24         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c (copytoks): Rewrite to call addtok_mb() directly.
Avoids          problems with multibyte characters inside charac-
ter   sets.            Thanks   to   Steven   Daniels    <steven-
daniels88@gmail.com>  for  reporting          the  problem.  Much
thanks to Mike Haertel <mike@ducky.net> for the          analysis
and fix.

2013-06-24  Eli Zaretskii  <eliz@gnu.org>

        *  io.c:  Move #include "popen.h" out of the HAVE_SOCKETS
condition,         as this is needed for  non-sockets  builds  as
well.      See             http://lists.gnu.org/archive/html/bug-
gawk/2013-06/msg00014.html         for the details of the problem
this caused.

2013-06-15         Arnold D. Robbins     <arnold@skeeve.com>

        * io.c: Add ifdefs for VMS so that it will compile again.
        Thanks to Anders Wallin.

2013-06-11         Arnold D. Robbins     <arnold@skeeve.com>

        * debug.c (print_lines): Move setting of binary  mode  to
after  all         the messing with the fd. Simplifies code some.
        * io.c (srcopen): Rearrange so that can add call to  set-
binmode         here too. This fixes the debugger and makes read-
ing source         files a little faster. Thanks again to Corinna
Vinschen.

2013-06-10         Arnold D. Robbins     <arnold@skeeve.com>

        * debug.c (print_lines): Set binary mode so that calcula-
tion of the         byte offsets will be right. Thanks to Corinna
Vinschen for the         direction.

2013-06-10         Arnold D. Robbins     <arnold@skeeve.com>

        *  re.c  (check_bracket_exp): Remove warning about ranges
being         locale dependent, since they aren't anymore.

2013-06-09         Arnold D. Robbins     <arnold@skeeve.com>

        * io.c (iop_finish): Change fstat call  to  fcntl/F_GETFL
per         Eli Z., for Windows.

2013-06-03         Arnold D. Robbins     <arnold@skeeve.com>

        *  eval.c  (unwind_stack):  If exiting, don't worry about
strange stuff         on the stack.

        Unrelated:

        *  awk.h   (init_sockets):   Declare.            *   io.c
(init_io): Remove ifdef around call.

2013-06-01  Eli Zaretskii  <eliz@gnu.org>

        *  io.c  (SHUT_RD)  [SD_RECEIVE]:  Define  to SD_RECEIVE.
        (SHUT_WR)     [SD_SEND]:     Define      to      SD_SEND.
        (SHUT_RDWR)     [SD_BOTH]:     Define     to     SD_BOTH.
        (FD_TO_SOCKET,  closemaybesocket)  [!FD_TO_SOCKET]:   New
macros.            (SOCKET_TO_FD,  SOCKET)  [!SOCKET_TO_FD]:  New
macros.           (PIPES_SIMULATED):  Define  only   for   DJGPP.
        (pipe)   [__MINGW32__]:  Define  to  call  _pipe,  unless
PIPES_SIMULATED            is     defined.              (init_io)
[HAVE_SOCKETS]:  Call  init_sockets.           (iop_close, socke-
topen): Call closemaybesocket instead of  close.           (redi-
rect)  [__MINGW32__]:  Call  wait_any  with  a non-zero argument.
        (devopen) [__EMX__ || __MINGW32__]: Don't  call  stat  on
network             pseudo-filenames.              (two_way_open)
[HAVE_SOCKETS]: Switch input and output to binary         mode if
appropriate.           (two_way_open) [!PIPES_SIMULATED]: Use the
__EMX__ code for MinGW          as  well.           [__MINGW32__]
Call  spawnl  to  invoke  $ComSpec and pass it a         suitably
quoted command line.          (two_way_open) [__MINGW32__]:  Wait
only  for  a specified process         ID.  If successful, update
the exit status of the exited process.          Don't use signals
that are undefined on MinGW.          (two_way_open) [!PIPES_SIM-
ULATED]:  Use  the  __EMX__  code  for  MinGW          as   well.
        (min):    Define    only    if   not   already   defined.
        (read_with_timeout)  [__MINGW32__]:  Allow  reading  from
sockets      with             timeout.              (gawk_fclose)
[__MINGW32__]: Close the underlying socket as well.

        * getopt.c: Include stdlib.h for MinGW as well.

2013-05-30         Arnold D. Robbins     <arnold@skeeve.com>

        More profiling fixes:

        * profile.c (pprint): For Op_in_array, parenthesize  sub-
script  if          the  precedence  is lower. E.g.:  (c = tolow-
er(foo)) in ARRAY.          (prec_level): Merge cases for  prece-
dence  of  5.           (parenthesize):  Simplify,  as  in 3.1.8.
Avoids stuff like         `(x == 1 && (z ==2 && (q == 4 &&  w  ==
7)))'.

        Unrelated:

        *  io.c  (iop_finish):  fstat the fd before closing it to
avoid         errors on some operating  systems.  Thanks  to  Eli
Zaretskii         for the report.

2013-05-29         Arnold D. Robbins     <arnold@skeeve.com>

        *  profile.c  (pp_group3): Renamed from pp_concat. Change
all calls.          (is_binary):  Change  return  type  to  bool.
        (is_scalar):   New  function.           (pp_concat):  New
function    to    handle    concatenation    operator     better.
        (pprint):  Call  it at case Op_concat. Fix Op_K_delete if
multiple         indexes to separate with "][".          General:
Add leading comments as needed.

2013-05-28         Arnold D. Robbins     <arnold@skeeve.com>

        * main.c (main): Add minor hack to not run code if pretty
printing         and undocumented env var GAWK_NO_PP_RUN  exists.
        *  profile.c  (pp_string):  Explicitly print NUL chars as
 00.

2013-05-27         Arnold D. Robbins     <arnold@skeeve.com>

        * configure.ac (AM_INIT_AUTOMAKE): Add dist-lzip to quiet
        outside maintainer warnings.

        Unrelated:

        * configure.ac (AC_STRUCT_ST_BLKSIZE): Replaced with call
to         AC_CHECK_MEMBERS.

        Unrelated:

        * array.c (null_array): Remove the assert and just  clear
        symbol->xarray.

2013-05-26         Arnold D. Robbins     <arnold@skeeve.com>

        *  getopt.c:  For  Mac  OS  X, also include <stdlib.h> to
avoid         some compiler warnings.

2013-05-20         Arnold D. Robbins     <arnold@skeeve.com>

        * gawkapi.h  [FAKE_FD_VALUE]:  Moved  from  here  to  ...
        * io.c [FAKE_FD_VALUE]: here.

2013-05-14  Eli Zaretskii  <eliz@gnu.org>

        * io.c (devopen) [__EMX__ || __MINGW32__]: Produce EISDIR
on MinGW         when an attempt to  open()  a  directory  fails.
        (two_way_open)  [__EMX__  || __MINGW32__]: When trying to
open() a         directory fails with EISDIR, assign FAKE_FD_VAL-
UE  to  the file         descriptor and attributes of a directory
to its mode bits.  This         is needed to support the  readdir
extension.

        *  gawkapi.h (FAKE_FD_VALUE): New macro, used in io.h and
in         extension/gawkdirfd.h.

2013-05-09         Arnold D. Robbins     <arnold@skeeve.com>

        * 4.1.0: Release tar ball made.

2013-05-09         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y (snode): Make it a fatal error to use a  reg-
exp constant         as the second argument of index(). Thanks to
Christopher Durant         <christopher.durant@marquesa.net>  and
Brian Kernighan for the report         and the advice.

2013-04-28  Eli Zaretskii  <eliz@gnu.org>

        *  io.c (redirect): Remove the HACK that called close_one
when         errno was zero in the MinGW  build.   This  prevents
failure  in         several tests in the test suite, e.g., close-
bad.

2013-04-28         Arnold D. Robbins     <arnold@skeeve.com>

        * bootstrap.sh: Fix a comment.

2013-04-24         Arnold D. Robbins     <arnold@skeeve.com>

        * io.c (do_getline_redir): Fix the leading comment.

2013-04-23         Arnold D. Robbins     <arnold@skeeve.com>

        * main.c (load_procinfo): Add PROCINFO  entries  for  API
major         and minor versions.

2013-04-21         Arnold D. Robbins     <arnold@skeeve.com>

        * missing: Update from Automake 1.13.1.

2013-04-18         Arnold D. Robbins     <arnold@skeeve.com>

        * configure.ac: Fix a typo.

2013-04-17         Corinna Vinschen      <vinschen@redhat.com>

        *  configure.ac: Remove special casing for cygwin for li-
biconv         and libintl.

2013-04-16         Arnold D. Robbins     <arnold@skeeve.com>

        * bootstrap.sh: Touch gawk.texi too. Update copyright.

2013-04-16         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.c: Regenerated  from  bison  2.7.1.           *
command.c:  Ditto.           *  dfa.h, dfa.c: Minor edits to sync
with GNU grep.          * gettext.h: Sync with gettext  0.18.2.1.
        *  random.h:  Remove  obsolete  __P macro and use. Update
copyright  year.           *  Makefile.am,  array.c,   builtin.c,
cint_array.c,  cmd.h,  debug.c,          eval.c,  ext.c, field.c,
gawkapi.c,  gawkapi.h,  gettext.h,  int_array.c,           inter-
pret.h,  msg.c,  node.c, profile.c, re.c, replace.c, str_array.c,
        symbol.c: Update copyright year.

        Update to automake 1.13.1:

        *  configure.ac   (AM_INIT_AUTOMAKE):   Update   version.
        * configure, Makefile.in, aclocal.m4, awklib/Makefile.in,
        doc/Makefile.in, test/Makefile.in: Regenerated.

        * getopt.c, getopt.h, getopt1.c, getopt_int.h: Sync  with
GLIBC.

2013-04-14         Arnold D. Robbins     <arnold@skeeve.com>

        *  awkgram.y  (check_funcs): Fix logic of test for called
but         not defined warning. Thanks to Scott Deifik  for  the
bug report.

2013-04-02         Arnold D. Robbins     <arnold@skeeve.com>

        *  profile.c  (print_lib_list):  Send  final  newline  to
prof_fp         instead of stdout.  Thanks to Hermann Peifer  for
the bug report.

2013-03-27         Arnold D. Robbins     <arnold@skeeve.com>

        *  Makefile.am  (SUBDIRS):  Move  extension back into the
middle of         the list so that `make check' without  a  prior
`make' works.

        Unrelated:

        *   main.c   (main):   Move   env_lc   into   ifdef   for
LIBC_IS_BORKED.

2013-03-20         Arnold D. Robbins     <arnold@skeeve.com>

        For systems where libc is borked (MirBSD, maybe others).

        *  dfa.c:  Force  use  of  gawk_mb_cur_max   instead   of
MB_CUR_MAX  and  make          mbrtowc a macro that always fails.
        (using_utf8): Force utf8 to  be  0  if  libc  borked  and
gawk_mb_cur_max         is one.          * main.c (main): If libc
is borked and LC_ALL or LANG exist in the         environment and
are set to "C" or "c", force gawk_mb_cur_max to one.

2013-03-11         Arnold D. Robbins     <arnold@skeeve.com>

        *  re.c  (check_bracket_exp): Make handling of embedded ]
in         regexp smarter. Thanks to Ed  Morton  <mortoneccc@com-
cast.net>         for reporting the bug.

2013-03-01         Arnold D. Robbins     <arnold@skeeve.com>

        Don't build extensions if API isn't supported:

        * Makefile.am (SUBDIRS): Move extension directory to last
in  case          building  the  extensions  is  not   supported.
        *  configure.ac:  Add check for MirBSD and don't even try
to run the         checks for DYNAMIC if so.

        Check for systems (MirBSD) where libc doesn't  understand
not         to use UTF-8 for LC_ALL=C.

        *  configure.ac  (LIBC_IS_BORKED):  AC_DEFINE  if needed.
        *  regcomp.c  (init_dfa):  Change  logic  as  needed   if
LIBC_IS_BORKED.

2013-02-28         Arnold D. Robbins     <arnold@skeeve.com>

        Cause  profiling  /  pretty printing to include a list of
        loaded extensions. Thanks to Hermann Peifer for  the  bug
report.

        * awk.h (srcfiles): Add declaration.          * profile.c
(print_lib_list): New function.          (dump_prog): Call it.

2013-02-26         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y (expression_list): In case  of  error  return
the  list         instead of NULL so that snode gets something it
can count.

2013-02-12         Arnold D. Robbins     <arnold@skeeve.com>

        * bisonfix.awk: Comment out code for fixing continued #if
        statements.  It  is  likely  not needed anymore. Leave it
there in         case I'm wrong.

2013-02-06         Arnold D. Robbins     <arnold@skeeve.com>

        * builtin.c (printf_common): Move nargs >  0  check  into
assert.           (do_sprintf): Add nargs check and fatal message
to here.

2013-02-04         Arnold D. Robbins     <arnold@skeeve.com>

        * main.c (main): Remove undocumented -m option which  was
for          compatibility  with BWK awk. His awk dropped it back
in 2007.

2013-02-03         Arnold D. Robbins     <arnold@skeeve.com>

        * configure.ac: Add Automake test for cross compiling.

2013-01-31         Arnold D. Robbins     <arnold@skeeve.com>

        * regcomp.c, regex.c, regex_internal.c, regexec.c: Update
        copyright years to sync with GLIBC.

        From:               http://www.sourceware.org/ml/libc-al-
pha/2013-01/msg00967.html,             by     Andreas      Schwab
<schwab@suse.de>:

        *  regexec.c  (extend_buffers):  Add  parameter  min_len.
        (check_matching):    Pass    minimum    needed    length.
        (clean_state_log_if_needed):                    Likewise.
        (get_subexp): Likewise.`

2013-01-31         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c: Include "dfa.h"  which  includes  regex.h  after
limits.h         so that RE_DUP_MAX gets the correct value. Espe-
cially needed on         OpenVMS. Thanks to Anders Wallin.

        * main.c (version): Print out API version numbers if  DY-
NAMIC.           Helpful  also  for  knowing  if to run the shlib
tests.

        * configure: Regenerated after change in m4/readline.m4.

2013-01-31         Arnold D. Robbins     <arnold@skeeve.com>

        * PROBLEMS: Removed. It is no longer  needed.           *
Makefile.am (EXTRA_DIST): Remove PROBLEMS from list.

2013-01-31          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * configure.ac: Remove  TEST_MPFR  conditional  added  in
last  patch.          We will instead test for MPFR capability by
looking at the output         from gawk --version.

2013-01-27         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  configure.ac:  Add  MPFR  test  for  use in test/Make-
file.am.

2013-01-25         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y (parms_shadow): Change  int  param  to  bool.
        *  cmd.h (output_is_tty): Sync type with rest of code (is
bool).           *  dfa.c  (MALLOC):  Undef  first,   for   Irix.
        *  Makefile.am  (LDADD):  Use LIBREADLINE and LIBMPFR in-
stead of         automake substitutions.          *  configure.ac
(AC_INIT):  Version bump.          (GAWK_CHECK_READLINE): Renamed
from GNUPG_CHECK_READLINE.

2013-01-23         Arnold D. Robbins     <arnold@skeeve.com>

        *  awk.h  (list_functions):  Change  parameter  to  bool.
        *  symbol.c  (list_functions):  Ditto.          (get_sym-
bols): Change sort parameter  to  bool.  Additional          code
cleanup.

2013-01-22         Arnold D. Robbins     <arnold@skeeve.com>

        *  symbol.c (get_symbols): Reset count after each loop to
only         sort the actual items retrieved. Thanks  to  Hermann
Peifer  (by          way of Andrew Schorr) for reporting the bug.
Also add some         commentary and fix function name in emalloc
calls.

2013-01-20         Arnold D. Robbins     <arnold@skeeve.com>

        * re.c (regexflags2str): New routine.          (resetup):
If do_intervals, also turn on RE_NO_BK_BRACES.          Thanks to
Yan Lei <yanl.fnst@cn.fujitsu.com> for the         bug report.

2013-01-18         Arnold D. Robbins     <arnold@skeeve.com>

        Fix a problem with include ordering to get ptrdiff_t def-
inition,         showed up on Debian Lenny.  Reported  by  Manuel
Collado.          Fix brought over from grep.

        *   dfa.h:   Include   regex.h   and  stddef.h  directly.
        * dfa.c: Adjust includes.

2013-01-11         John Haque            <j.eh@mchsi.com>

        * awk.h  (do_mpfr_rshift):  Renamed  from  do_mpfr_rhift.
        * awkgram.y (do_mpfr_rshift): Renamed from do_mpfr_rhift.
        *  mpfr.c  (_tz1,  _tz2,  _mpz1,   _mpz2,   mpz1,   mpz2,
get_bit_ops,                    free_bit_ops):           Removed.
        (init_mpfr): Remove calls to mpz_init.          (get_int-
val,   free_intval):   New  functions.           (do_mpfr_rshift,
do_mpfr_lshift): Rework code.          (do_mpfr_and,  do_mpfr_or,
do_mpfr_xor): Accept two or more arguments         to match regu-
lar functions.

2013-01-11         Arnold D. Robbins     <arnold@skeeve.com>

        * bisonfix.awk: Adjust ARGV / ARGC to  force  reading  of
standard         input; apparently needed for Mac OS X. Thanks to
Akim Demaille         for the report.

2013-01-06         Arnold D. Robbins     <arnold@skeeve.com>

        * io.c (redirect, two_way_open): Set the  name  field  in
the          awk_input_buf_t  and awk_output_buf_t structures, as
needed.          Thanks to Manuel Collado for the report.

2013-01-05         Arnold D. Robbins     <arnold@skeeve.com>

        *  regex_internal.h  (struct  re_dfa_t):  Restore  ifdefs
around           __libc_lock_define,  they  really  were  needed.
Bleah.

2013-01-01         Arnold D. Robbins     <arnold@skeeve.com>

        Sync with GLIBC regex files.

        *  regex_internal.h  (struct  re_dfa_t):  Remove   ifdefs
around          __libc_lock_define  since it's already defined to
empty   in   non-LIBC            case.             *    regexec.c
(check_node_accept_bytes):    Restore    decl   with   use   from
        GLIBC code since this is LIBC case.

2012-12-27         Arnold D. Robbins     <arnold@skeeve.com>

        * builtin.c (do_print, do_printf): Use output_fp  as  de-
fault          output  for print/printf only if running under the
debugger.          Otherwise use stdout as Brian, Peter,  and  Al
intended.

2012-12-25         Arnold D. Robbins     <arnold@skeeve.com>

        Remove  sym-constant from API after discussions with John
        Haque and Andrew Schorr.

        * gawkapi.h  (api_sym_constant):  Removed  field  in  API
struct.            (sym_constant):   Remove   macro.            *
gawkapi.c (set_constant, api_sym_update,  api_sym_constant):  Re-
moved.           (sym_update_real):  Renamed to api_sym_update().
is_const parameter         removed and code adjusted.

2012-12-24         Arnold D. Robbins     <arnold@skeeve.com>

        * 4.0.2: Release tar ball made.

2012-12-23         John Haque      <j.eh@mchsi.com>

        * eval.c  (r_get_lhs):  Node_array_ref.  If  original  is
Node_var,          don't  assign null-string as value.          *
ext.c (get_argument): Node_array_ref. Check if already a scalar.

2011-12-23         John Haque      <j.eh@mchsi.com>

        *   awkgram.y   (is_deferred_variable):   New   function.
        (func_install): Call it.          * eval.c (r_interpret):
Op_push_arg. Check for uninitialized scalar.

2012-12-23         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y (tokentab):  Whitespace  fix  for  "include".
        *  builtin.c (printf_common): Do a fatal error if no args
to printf()         or sprintf().

2012-12-19         Arnold D. Robbins     <arnold@skeeve.com>

        * bootstrap.sh: Touch extension/aclocal.m4 also.

        Unrelated: Extend input parser API:

        * awk.h (IOBUF):  Remove  read_func  pointer.           *
gawkapi.h  (awk_input_buf_t):  Move  it  to here.          * io.c
(iop_alloc, get_a_record, get_read_timeout): Adjust code.

        Unrelated: Make sure that variables like NF, NR, FNR  are
        accessable correctly both through SYMTAB and through API.

        *  gawkapi.c  (api_sym_lookup):  Call  update_global_val-
ues().          (api_sym_lookup_scalar): Ditto.          * inter-
pret.h (Op_subscript, Op_subscript_lhs): Ditto.          * main.c
(update_global_values): Adjust comment.

        Unrelated: Fix --disable-lint  so  that  everything  com-
piles.

        * main.c (main): Move case label inside ifdef.          *
awkgram.y  (isnoeffect):  Add  ifdefs  around  declaration,  use,
        and function body.

        Unrelated: Restore building with tcc.

        *  awk.h (AFUNC): Move to array.c which is the only place
its used.          (ainit_ind, atypeof_ind, etc.): New macros for
use  in array.c         * array.c (AFUNC): Change to use F##_ind.
Works with tcc and other          compilers.           *  config-
ure.ac: Only add -export-dynamic flag if compiling with gcc.

2012-12-18          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * gawkapi.c (sym_update_real): If setting a scalar  vari-
able  that exists         already in an undefined state with type
set to Node_var_new, we must         update the type to  Node_var
if the new value is not undefined.

2012-12-18         Arnold D. Robbins     <arnold@skeeve.com>

        *  awkgram.y  (tokentab):  "extension" needs to be inside
ifdef DYNAMIC.          Thanks to Anders Wallin for finding this.

2012-12-16         Arnold D. Robbins     <arnold@skeeve.com>

        *  debug.c  (do_set_var):  Fix   last   remaining   `*as-
soc_lookup() = x'.

2012-12-15         Arnold D. Robbins     <arnold@skeeve.com>

        Infrastructure Updates:

        *  awkgram.c,  command.c:  Regenerated  with  bison  2.7.
        * config.guess, config.sub,  depcomp:  Updated  from  au-
tomake 1.12.6.

2012-12-09         Arnold D. Robbins     <arnold@skeeve.com>

        Clean up BINMODE to use symbolic values.

        *  awk.h  (enum  binmode_values):  New  enum.           *
eval.c  (set_BINMODE):  Use  them.           *   io.c   (binmode,
close_rp,  gawk_popen):  Ditto.           * main.c (main): Ditto.
        * builtin.c (do_system): Ditto.

        Unrelated:

        * configure.ac:  Look  for  posix_openpt          *  io.c
(two_way_open):    Use    posix_openpt    if    it's   available.
        Thanks to Christian Weisgerber  <naddy@mips.inka.de>  for
        the changes.

        Also unrelated:

        *  regex.c: Don't include <sys/param.h> on VMS. Thanks to
        Anders Wallin.

        Also unrelated:

        * ext.c (is_letter, is_identifier_char):  New  functions.
Don't  use          <ctype.h> functions since those could rely on
the locale.          (make_builtin): Adjust test for  valid  name
to  call  the  new          functions and return false instead of
throwing a fatal error.          (make_old_builtin): Adjust  test
for valid name to call the new         function.          * awk.h
(is_identchar):  Move  from  here,   ...            *   awkgram.y
(is_identchar):  ... to here. This is safe, since         the lo-
cale is C during parsing the program.

        Also unrelated: Make all checks for  bitflags  being  set
consistent         in case we should wish to switch them to macro
calls:

        * awkgram.y, builtin.c,  cint_array.c,  debug.c,  eval.c,
gawkapi.c,          int_array.c, io.c, mpfr.c, node.c, profile.c,
str_array.c: Fix         as needed.

2012-12-07         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y (tokentab): `fflush()' is now in  POSIX,  re-
move  the         RESX flag. This was the last use, so delete the
flag.          (yylex): Don't check RESX.

        Thanks to Nathan Weeks  <weeks@iastate.edu>  for  helping
make this         happen.

2012-12-01         Arnold D. Robbins     <arnold@skeeve.com>

        *  interpret.h:  For  op_assign_concat,  if  both strings
        have WSTRCUR, then do the realloc() and  append  for  the
        wide string too.  Thanks to Janis Papanagnou         <ja-
nis_papanagnou@hotmail.com>     for     the     discussion     in
        comp.lang.awk.

2012-11-30         Arnold D. Robbins     <arnold@skeeve.com>

        *  regcomp.c,  regex.c, regex_internal.h, regexec.c: Sync
        with GLIBC.  Why not.

        *  gawkapi.c  (awk_bool_t):  Change  into  an  enum  with
awk_false and         awk_true values.

2012-01-30          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        Further cleanups of macros in awk.h

        * awk.h (_r, _t): Remove  declarations.           (unref,
m_force_string): Remove macros.          (r_unref): Move declara-
tion.              (r_force_string):     Remove      declaration.
        (DEREF,  force_string,  force_number,  unref): Now inline
functions.          (POP_STRING,  TOP_STRING):  Back  to  macros.
        * eval.c (_t): Remove definition.          * main.c (_r):
Remove definition.          * node.c (r_force_string): Remove.

2012-11-27         Arnold D. Robbins     <arnold@skeeve.com>

        * builtin.c (do_fflush):  Make  fflush()  and  fflush("")
both         flush everything. See the comment in the code.

2012-11-26         Arnold D. Robbins     <arnold@skeeve.com>

        *  awk.h  (Node_old_ext_func,  Op_old_ext_func): New enum
values.          * configure.ac: Use -export-dynamic if supported
for  old  extension         mechanism.          * eval.c (nodeyt-
pes):   Add    Node_old_ext_func.             (optypetab):    Add
Op_old_ext_func.           *  ext.c (make_old_ext_builtin): "New"
function.              *      interpret.h:      Special      case
Op_old_ext_builtin.  Add  checks  for          Node_old_ext_func.
        * msg.c: Adjust placement of a comment.

2012-05-02         John Haque      <j.eh@mchsi.com>

        * str_array.c (str_copy): Initialize next pointer in  the
linked   list          to  avoid  memory  corruption.           *
int_array.c (int_copy): Ditto.

2012-04-21         John Haque      <j.eh@mchsi.com>

        Shutdown routine for a dynamic extension.

        * awk.h (SRCFILE): New field fini_func.          *  ext.c
(load_ext):   Takes   an  additional  argument  to  look  up  and
        save  the   clean   up   routine   in   SRCFILE   struct.
        (INIT_FUNC, FINI_FUNC): Defines for default init and fini
routine         names.          (do_ext):  Use  default  for  the
name  of the init or fini routine if         one is not supplied.
Adjust call to load_ext().           (close_extensions):  Execute
fini   routines.            *   interpret.h   (Op_at_exit):  Call
close_extensions().            *   msg.c   (gawk_exit):    Ditto.
        *  debug.c  (close_all): Ditto.          * main.c (main):
Adjust call to load_ext().          * awkgram.y (tokentab): Spec-
ify  2nd  and  3rd optional arguments         for the extension()
built-in.

        Unrelated:

        * interpret.h (Op_arrayfor_init):  Use  assoc_length  for
array size.

2012-04-19         John Haque      <j.eh@mchsi.com>

        Enhanced array interface to support transparent implemen-
tation         using external storage and ...

        * awk.h (astore): Optional post-assignment store  routine
for         array subscripts.          (Op_subscript_assign): New
opcode to support the store routine.          (alength): New  ar-
ray  interface routine for array length.          (assoc_length):
New  macro.           (assoc_empty):  Renamed  from  array_empty.
        * awkgram.y (snode): Append Op_subscript_assign opcode if
        (g)sub variable is an  array  element.           (mk_get-
line):  Same for getline variable.          (mk_assignment): Same
if assigning to an array element.           *  field.c  (set_ele-
ment):   Call  store  routine  if  needed.           *  builtin.c
(do_match): Ditto.          (do_length): Use length  routine  for
array  size.           * symbol.c (print_vars): Ditto.          *
array.c (null_length): Default function for array  length  inter-
face.           (asort_actual): Call  store  routine  if defined.
        (asort_actual, assoc_list): Use length routine for  array
size.           (null_array_func):  Add  length and store routine
entries.            *   str_array.c    (str_array_func):    Same.
        *   cint_array.c   (cint_array_func):   Same.           *
int_array.c (int_array_func): Same.           *  eval.c  (optype-
tab): Add Op_subscript_assign.          * profile.c (pprint): Add
case  Op_subscript_assign.           *  interpret.h   (set_array,
set_idx): New variables to keep track         of an array element
with  store  routine.           (Op_sub_array,  Op_subscript_lhs,
Op_store_sub,  Op_subscript_assign):          Add  code to handle
array store routine.          * debug.c (print_symbol,  print_ar-
ray,      cmp_val,     watchpoint_triggered,             initial-
ize_watch_item): Use length routine for array size.

        *  awk.h  (assoc_kind_t):  New  typedef  for   enum   as-
soc_list_flags.          (sort_context_t): Renamed from SORT_CON-
TEXT.           *  array.c  (asort_actual,  assoc_sort):  Adjust.
        * cint_array.c (cint_list, tree_list, leaf_list): Adjust.
        * int_array.c (int_list): Adjust.          *  str_array.c
(str_list): Adjust.

2012-04-18         John Haque      <j.eh@mchsi.com>

        * awk.h (atypeof, AFUNC): New macros.          (afunc_t):
Renamed typedef from array_ptr.          * array.c  (register_ar-
ray_func,  null_lookup): Use AFUNC macro         instead of hard-
coded index for array functions.           (asort_actual):  Unref
null  array  elements before overwriting.          (force_array):
Renamed  from  get_array.           (null_array):  Renamed   from
init_array.  Also  initialize flags to 0.          (array_types):
Renamed from  atypes.           (num_array_types):  Renamed  from
num_atypes.            *   interpret.h   (r_interpret):  In  case
Op_sub_array, unref null array  element.           *  str_array.c
(str_array_init):   Reworked  for  (re)initialization  of  array.
        *   int_array.c   (int_array_init):   Ditto.            *
cint_array.c (cint_array_init): Ditto.

2012-11-24         Arnold D. Robbins     <arnold@skeeve.com>

        Directory cleanup.

        * TODO.xgawk, FUTURES: Merged into TODO.          * TODO:
More stuff added.          * Makefile.am (EXTRA_DIST): Updated.

2012-11-22         Arnold D. Robbins     <arnold@skeeve.com>

        Cleanup of awk.h.

        * array.c (r_in_array): Removed.          *  awk.h  (MAL-
LOC_ARG_T):  Replaced  with size_t everywhere.          (S_ISREG,
setsid):  Moved  to  io.c.            (__extension__):   Removed.
        (INT32_BIT): Moved to cint_array.c.          (_t): Always
declare.          (DO_LINT_INVALID, et al): Moved into  an  enum.
        (POP_ARRAY,  POP_PARAM,  POP_SCALAR, TOP_SCALAR, dupnode,
in_array):             Moved     into      inline      functions.
        (force_number,         force_string):         Simplified.
        (ZOS_USS): Remove undef of DYNAMIC, it's handled in  con-
figure.ac.           *  io.c  (S_ISREG,  setsid):  Moved to here.
        * cint_array.c (INT32_BIT):  Moved  to  here.           *
eval.c  (_t):  Always define.          * protos.h: Use size_t di-
rectly instead of MALLOC_ARG_T.

        Unrelated:

        * gawkapi.h: Add `awk_' prefix to  structure  tags  where
they          were  missing.   Document  the full list of include
files needed.

2012-11-14         Arnold D. Robbins     <arnold@skeeve.com>

        * io.c (do_find_source): On VMS, don't add the `/'  sepa-
rator.          Thanks to Anders Wallin.

        MPFR minor cleanup:

        *  awk.h  (mpfr_unset):  Declare new function.          *
mpfr.c (mpfr_unset): New function.          *  node.c  (r_unref):
Call   it   instead   of   inline   code.           *  gawk_api.c
(api_sym_update_scalar): Call it instead of inline code.

2012-11-13         Arnold D. Robbins     <arnold@skeeve.com>

        * symbol.c (get_symbols): Check type,  not  vname.  Keeps
        valgrind  happy. Thanks to Andrew Schorr for noticing the
problem.

2012-11-10         Arnold D. Robbins     <arnold@skeeve.com>

        * Update  to  bison  2.6.5.  Various  files  regenerated.
        *  io.c  (find_source): Add a default value for SHLIBEXT.
        (read_with_timeout): For VMS also, just use read().

2012-11-10         John Haque      <j.eh@mchsi.com>

        * int_array.c  (int_copy):  Initialize  next  pointer  of
newchain  to  null.           *  eval.c  (eval_condition):  Force
string context for an integer used         as array index.

2012-11-10         Arnold D. Robbins     <arnold@skeeve.com>

        *    gawkapi.c     (api_add_ext_func,     api_awk_atexit,
api_clear_array,            api_create_array,   api_create_value,
api_register_ext_version,           api_release_value,    api_up-
date_ERRNO_string,   node_to_awk_value,           remove_element,
run_ext_exit_handlers): Add null pointer checks.           Every-
where: Add / fixup leading comments.

        *  interpret.h  (Op_store_sub): If assigning to an unini-
tialized variable         through SYMTAB, change it to  Node_var.
Add  explanatory  comments.          * symbol.c (get_symbol): Ra-
tionalized. Skip non-variables in SYMTAB.

2012-11-04         Arnold D. Robbins     <arnold@skeeve.com>

        * gawkapi.h: Minor documentation edit.

2012-10-31         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y (want_regexp): Use as a bool, not as an  int.
        *  field.c: Fix a comment.          * gawkapi.h: Add com-
ment to include <errno.h>.           *  symbol.c  (load_symbols):
``No  automatic  aggregate  initialization.''           Here too.
Sigh again.

        * gawkapi.h: Minor documentation edits.

2012-11-27         Arnold D. Robbins     <arnold@skeeve.com>

        * builtin.c (do_fflush):  Make  fflush()  and  fflush("")
both         flush everything. See the comment in the code.

2012-10-28         Arnold D. Robbins     <arnold@skeeve.com>

        * Update to bison 2.6.4. Various files regenerated.

2012-10-27         Arnold D. Robbins     <arnold@skeeve.com>

        *  gawkapi.h:  Continuing  the  minor  formatting  /  doc
cleanups.

2012-10-26         Arnold D. Robbins     <arnold@skeeve.com>

        *  gawkapi.h:  Continuing  the  minor  formatting  /  doc
cleanups.

2012-10-24         Arnold D. Robbins     <arnold@skeeve.com>

        * gawkapi.h: Still more minor formatting / doc cleanups.

2012-10-23         Arnold D. Robbins     <arnold@skeeve.com>

        * gawkapi.h: More minor formatting / doc cleanups.

2012-10-21         Arnold D. Robbins     <arnold@skeeve.com>

        Fixes for z/OS from Dave Pitts.

        *  awk.h  (assoc_list_flags):  No  trailing comma on last
enum  value.            *   gawkapi.h   (awk_valtype_t):   Ditto.
        * symbol.c (lookup): ``No automatic aggregate initializa-
tion.'' Sigh.

        Unrelated:

        * gawkapi.h: Minor formatting / doc cleanups.

2012-10-19         Arnold D. Robbins     <arnold@skeeve.com>

        If SYMTAB is used, make sure  ENVIRON  and  PROCINFO  get
loaded too.

        *  awkgram.y  (process_deferred):  New  function. Call it
when      program               is       completely       parsed.
        (symtab_used):  New variable.          (variable): Set it
to true if SYMTAB is looked up.          * main.c  (load_environ,
load_procinfo):  Make  sure  the routines are         only called
once.

        Unrelated fixes:

        * awkgram.y (yylex): Check continue_allowed and break_al-
lowed  as         soon as they are seen in the scanner; the rules
that check them         can not be reduced until  after  a  token
that  allows them is seen,         leading to errors at execution
time.          * interpret.h (Op_K_break, Op_K_continue, Op_jmp):
Add assertion         that pc->target_jmp is not NULL.

        * symbol.c (lookup): Correct a comment.

2012-10-14         Arnold D. Robbins     <arnold@skeeve.com>

        *   gawkapi.h  (IOBUF_PUBLIC):  Renamed  awk_input_buf_t.
        (struct   iobuf_public):   Renamed   struct    awk_input.
        * awk.h: Adjust.

2012-10-13         Arnold D. Robbins     <arnold@skeeve.com>

        * Update to Automake 1.12.4. Various files regenerated.

2012-10-11         Arnold D. Robbins     <arnold@skeeve.com>

        *   awk.h  (dup_ent):  New  member  for  Node_param_list.
        * symbol.c (install): For parameters, if this is a dupli-
cate,  chain         it off the original using the dup_ent point-
er.          (remove_params): If there's a duplicate,  remove  it
from the list.

        * awk.h: Fix flags to have unique numeric values. Oops.

2012-10-10         Arnold D. Robbins     <arnold@skeeve.com>

        *  gawkapi.h:  Add  considerably  more documentation. Re-
arrange order         of functions in the  struct  to  make  more
sense, grouping related         functions together in a more log-
ical order.          * gawkapi.c: Adjust  as  needed.           *
ext.c (make_builtin): Adjust for name change in struct member.

2012-10-05         Arnold D. Robbins     <arnold@skeeve.com>

        * mbsupport.h: Add a bunch of undefs for z/OS.

2012-10-04         Arnold D. Robbins     <arnold@skeeve.com>

        *  TODO.xgawk:  Update.          * awk.h (make_str_node):
Removed   macro.            (make_string):   Modified   to   call
make_str_node.              (r_make_str_node):     Renamed     to
make_str_node.          * gawkapi.c: Changed  r_make_str_node  to
make_str_node  everywhere.          * node.c (make_str_node): Re-
named from make_str_node.

        Update to automake 1.12.4.

        * Makefile.in, aclocal.m4, awklib/Makefile.in,  doc/Make-
file.in,           extension/Makefile.in,   extension/aclocal.m4,
test/Makefile.in:         Regenerated.

        * interpret.h (Op_Subscript):  Added  lint  warnings  for
FUNCTAB         and SYMTAB.

2012-10-02         Arnold D. Robbins     <arnold@skeeve.com>

        *  awk.h  (func_table): Declare.          * awkgram.y: If
do_posix or do_traditional,  then  check  for          delete  on
SYMTAB.  Add check for delete on FUNCTAB, also.          * inter-
pret.h (Op_Subscript):  For  FUNCTAB,  return  the  element  name
        as  its  value  too.  Avoids lots of weirdness and allows
indirect calls         after assignment  from  FUNCTAB["foo"]  to
work.          (Op_store_sub): Disallow assignment to elements of
FUNCTAB.          (Op_indirect_func_all): Turn assert into  check
and  fatal  error.           *  symbol.c  (func_table): No longer
static.          (lookup): If do_posix  or  do_traditional,  skip
the  global  table.          (release_all_vars): Clear func_table
too.

2012-09-25         Arnold D. Robbins     <arnold@skeeve.com>

        First cut at SYMTAB and FUNCTAB. This does the following:
        -  Change  symbol  table  handling  to  use  gawk arrays.
        - Store symbols in SYMTAB array and allow indirect access
           through SYMTAB to variables, both getting and setting.
        - List function names in FUNCTAB indexes;  Values  cannot
be           used at the moment.          - No documentation yet.

        *  awk.h  (Node_hashnode,  hnext,  hname, hlength, hcode,
hvalue):            Removed,     not     needed     any     more.
        (init_symbol_table,   symbol_table):   Add  declarations.
        * awkgram.y: Disallow delete on SYMTAB, fix  warning  for
tawk          extension  if traditional.          * eval.c (node-
types):  Remove  Node_hashnode  element.           *  interpret.h
(Op_subscript,    Op_store_sub):    Handle    SYMTAB    and    go
        through to the actual value.           *  main.c  (main):
Init  Nnull_string  earlier.  Add call to         init_symbol_ta-
ble().          * profile.c (pp_str, pp_len): Change definitions.
        (pp_next):  New macro.          (pp_push, pp_pop): Adjust
uses.          * symbol.c (variables):  Removed.           (glob-
al_table,   param_table,  func_table,  symbol_table,          in-
stalling_specials): New variables.          (lookup, make_params,
install_params,  remove_params,  remove_symbol,         make_sym-
bol,  install,  get_symbols,   release_all_vars,   append_symbol,
        release_symbols,  load_symbols):  Rework  logic consider-
ably.          (init_symbol_table): New function.

2012-09-23         Arnold D. Robbins     <arnold@skeeve.com>

        `delete  array'  and  `nextfile'  are   now   in   POSIX.
        Thanks   to  Nathan  Weeks  <weeks@iastate.edu>  for  the
        initiative and letting us know about it.

        * awkgram.y: Make the right code changes for `delete  ar-
ray'          and  `nextfile'.           (tokentab): Set flags to
zero for nextfile.

2012-09-19         Arnold D. Robbins     <arnold@skeeve.com>

        * symbol.c (load_symbols): Zero out the  new  node.  Pre-
vents assertion         failure on PPC Mac OS X.

2012-09-14         Arnold D. Robbins     <arnold@skeeve.com>

        Allow  read-only access to built-in variables from exten-
sions.

        * awk.h  (NO_EXT_SET):  New  flag.           *  gawkapi.c
(api_sym_lookup,    api_sym_update_real):   Set   flag   if   off
        limits  variable  instead  of  failing.   Adjust   logic.
        (api_sym_update_scalar,            api_set_array_element,
api_del_array_element,         api_release_flattened_array):  Ad-
just logic.          * gawkapi.h: Adjust documentation.

        Provide PROCINFO["identifiers"]. Undocumented for now.

        *  awk.h (load_symbols): Add declaration.          * awk-
gram.y (variable): Adjust comment formatting.           *  main.c
(main):  Call load_symbols().          * symbol.c (load_symbols):
New function.

2012-09-13         Arnold D. Robbins     <arnold@skeeve.com>

        * configure.ac: Determination of DYNAMIC adjusted.  Hope-
fully is         smarter for z/OS.

2012-09-13         Dave Pitts            <dpitts@cozx.com>

        * awk.h: Add defines for z/OS for newer types.

2012-08-31         Arnold D. Robbins     <arnold@skeeve.com>

        *  gawkapi.c: Wrap various bits in #ifdef DYNAMIC so that
        gawk will compile on systems without dynamic loading.

2012-08-24         Arnold D. Robbins     <arnold@skeeve.com>

        Add version facility to API.  Thanks  to  Manuel  Collado
        for the idea.

        * awk.h (print_ext_versions): Declare.          Rearrange
includes and decls to make more sense.          * gawkapi.h (reg-
ister_ext_version):  New  API.           (dl_load_func): Add code
for ext_version.          * gawkapi.c  (api_register_ext_version,
print_ext_versions):          New  functions.           *  main.c
(do_version): New variable.          (optab): Set  it  for  -v  /
--version.           (main):  Set  it in arg parsing switch. Call
version() after the         extensions have been loaded.

2012-08-22         Arnold D. Robbins     <arnold@skeeve.com>

        Add output wrapper and  two-way  processor  to  extension
API.

        *  awk.h  (struct  redirect):  Replace output FILE * with
awk_output_buf_t.             (register_output_wrapper,    regis-
ter_two_way_processor):  Declare.          * builtin.c (efwrite):
Adjust logic to use rp->output data and         functions  if  rp
is   not   NULL.   Remove   redundant  declaration  of  function.
        (do_fflush, do_printf, do_print, do_print_rec): Same  ad-
justment.          * ext.c (make_builtin): Adjust error messages.
        *         gawkapi.c         (api_register_output_wrapper,
        api_register_two_way_processor):      New      functions.
        (sym_update_real):  Adjust  code  formatting.           *
gawkapi.h  (awk_input_parser_t):  Make  next  pointer  awk_const.
        (awk_output_buf_t, awk_two_way_processor_t): New structs.
        (api_register_output_wrapper,   api_register_two_way_pro-
cessor): New APIs.          (dl_load_func): Allow for empty func-
tion table (NULL elements).          * io.c (find_output_wrapper,
init_output_wrapper,   find_two_processor,           gawk_fwrite,
gawk_ferror,    gawk_fflush,    gawk_fclose):    New   functions.
        (redirect): Call init_output_wrapper, find_output_wrapper
as needed.          Adjust use of rp->fp to rp->output.fp and al-
so function calls.           (close_rp,  close_redir,  flush_io):
Same  adjustment.           (two_way_open): Same adjustment. Call
find_two_way_processor, and         find_output_wrapper, as need-
ed.

2012-08-17         Arnold D. Robbins     <arnold@skeeve.com>

        * Update infrastructure: Automake 1.12.3 and bison 2.6.2.

2012-08-15         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c: Sync w/GNU grep.

2012-08-12         Arnold D. Robbins     <arnold@skeeve.com>

        *  gawkapi.h: Make the versions enum constants instead of
defines.

2012-08-11         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  awkgram.y  (add_srcfile):  It  is now a fatal error to
load  the          same  file  with  -f  and  -i  (or  @include).
        * TODO.xgawk: Update to reflect this change.

2012-08-10         Arnold D. Robbins     <arnold@skeeve.com>

        * FUTURES, TODO.xgawk: Updates.

2012-08-08         Arnold D. Robbins     <arnold@skeeve.com>

        * configure.ac: Add -DNDEBUG to remove asserts if not de-
veloping.

        * gawkapi.h: Document how to build up arrays.           *
gawkapi.c  (api_sym_update):  For  an  array, pass the new cookie
        back out to the extension.

        * awk.h (IOBUF):  Move  struct  stat  into  IOBUF_PUBLIC.
        (os_isreadable):   Change   to   take   an  IOBUF_PUBLIC.
        *  gawkapi.h  (IOBUF_PUBLIC):   Received   struct   stat.
        (INVALID_HANDLE): Moves to here.          * io.c (iop_al-
loc): Stat the fd and fill in  stat  buf.           (iop_finish):
Use passed in stat info.

2012-08-05         Arnold D. Robbins     <arnold@skeeve.com>

        * README.git: More stuff added.

2012-08-01         Arnold D. Robbins     <arnold@skeeve.com>

        *  io.c (iop_finish): New function.          (iop_alloc):
Add errno_val parameter. Move code into iop_finish.           Add
large  explanatory  leading  comment.          (after_beginfile):
Rework logic. Check for input parser  first,  then          check
for  invalid iop.          (nextfile): Organize code better. Call
iop_alloc then iop_finish.          (redirect):  Call  iop_alloc,
find_input_parser,   iop_finish.            (two_way_open):  Call
iop_alloc, find_input_parser, iop_finish.           (gawk_popen):
Call iop_alloc, find_input_parser, iop_finish.          (find_in-
put_parser):  Set  iop->valid  if  input  parser  takes  control.
        (get_a_record): Rework setting RT to use macros.

2012-07-29          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * awk.h  (set_RT_to_null,  set_RT):  Removed.           *
gawkapi.h (api_set_RT): Removed.          (get_record): Signature
changed   in   input   parser   struct.            *    gawkapi.c
(api_set_RT):  Removed.          * io.c (set_RT_to_null, set_RT):
Removed.          (get_a_record): Adjustments for new API for in-
put parser.

2012-07-29         Arnold D. Robbins     <arnold@skeeve.com>

        *     awk.h    (os_isreadable):    Adjust    declaration.
        (struct iobuf): Add new member `valid'.           *  io.c
(iop_alloc):  Remove do_input_parsers parameter, it's         al-
ways true. Adjust logic to set things to  invalid  if  could  not
        find  an  input  parser.           (after_beginfile): Use
valid member to check if iobuf  is  valid.           Don't  clear
iop->errcode.           (nextfile): Adjust logic to clear errcode
if valid is true and         also to update ERRNO.           (re-
direct):  Check  iop->valid  and  cleanup as necessary, including
        setting    ERRNO.              (two_way_open):     Ditto.
        (gawk_popen): Ditto.          (devopen): Remove check for
directory.

2012-07-27         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  io.c (find_input_parser): Issue a warning if take_con-
trol_of fails.

2012-07-27         Arnold D. Robbins     <arnold@skeeve.com>

        * awk.h (set_RT): Change to  take  a  NODE  *  parameter.
        *  io.c  (set_RT):  Change  to  take  a NODE * parameter.
        * gawkapi.h: Change open hook to input parser in comment.
        * gawkapi.c (api_set_RT): Adjust call to set_RT.

2012-07-26         Arnold D. Robbins     <arnold@skeeve.com>

        *  awk.h  (set_RT_to_null,  set_RT):  Declare  functions.
        (os_isreadable):  Declare   function.            *   io.c
(set_RT_to_null,  set_RT):  New  functions.          (iop_close):
Init ret to zero.          * gawkapi.c  (api_register_input_pars-
er): Check for null pointer.          (api_set_RT): New function.
        * gawkapi.h (api_set_RT): New function.

2012-07-26         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  gawkapi.h  (IOBUF_PUBLIC): Document the get_record and
close_func          API.            (awk_input_parser_t)   Change
can_take_file  argument  to  const, and         document the API.
        * io.c (get_a_record): Document that the caller  initial-
izes  *errcode         to 0, and remote the test for non-NULL er-
rcode.

2012-07-26         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        * gawkapi.c (api_sym_update_scalar): Fix some minor bugs.
Was         not  updating  AWK_NUMBER  when  valref  !=  1.   And
strings were not         freeing MPFR values.

2012-07-25         Arnold D. Robbins     <arnold@skeeve.com>

        Start refactoring of IOBUF handling and turn "open hooks"
        into "input parsers".

        * awk.h (IOP_NOFREE_OBJ): Flag removed.           (regis-
ter_input_parser):  Renamed  from  register_open_hook.          *
ext.c (load_ext): Make sure  lib_name  is  not  NULL.           *
gawk_api.c      (api_register_input_parser):     Renamed     from
        api_register_open_hook.          * gawk_api.h (api_regis-
ter_input_parser):  Renamed  from         api_register_open_hook.
Rework structure to have "do you want it"         and "take  con-
trol  of it" functions.          * io.c (iop_alloc): Remove third
argument which is IOBUF pointer.          Always malloc  it.  Re-
move use of IOP_NOFREE_OBJ everywhere.          (find_input_pars-
er): Renamed from find_open_hook.          (nextfile): Don't  use
static  IOBUF.           (iop_close): Call close_func first. Then
close fd or remap it         if it's  still  not  INVALID_HANDLE.
        (register_input_parser): Renamed from register_open_hook.
        Use a FIFO list and check if more than  one  parser  will
accept the         file. If so, fatal error.

2012-07-25          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * configure.ac: Instead of  using  acl_shlibext  for  the
shared  library          extension, define our own variable GAWK-
LIBEXT with a  hack  to  work          correctly  on  Mac  OS  X.
        * Makefile.am (SHLIBEXT): Use the value of GAWKLIBEXT in-
stead of         acl_shlibext.

2012-07-24         Arnold D. Robbins     <arnold@skeeve.com>

        * configure.ac: Add crude but small hack to make plug-ins
work         on Mac OS X.

2012-07-20         Arnold D. Robbins     <arnold@skeeve.com>

        *  gawkapi.h:  Rework table to not take up so much space.
        * gawkapi.c (api_sym_update_scalar): Rework  optimization
code         to clean up the function.

2012-07-17          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * gawkapi.h: Add comments explaining new api_create_value
and          api_release_value  functions.           *  gawkapi.c
(sym_update_real):   Allow   updates    with    AWK_SCALAR    and
        AWK_VALUE_COOKIE  types.   After creating a regular vari-
able,         remove the call  to  unref(node->var_value),  since
this is not         done elsewhere in the code (see, for example,
main.c:init_vars).          If the  update  is  for  an  existing
variable, allow any val_type         except AWK_ARRAY (was previ-
ously disallowing AWK_SCALAR and         AWK_VALUE_COOKIE for  no
apparent  reason).           (api_sym_update_scalar):  The switch
should return false for an          invalid  val_type  value,  so
change   the  AWK_ARRAY  case  to  default.           (valid_sub-
script_type): Any scalar value  is  good,  so  accept  any  valid
        type  except  AWK_ARRAY.          (api_create_value): Ac-
cept only AWK_NUMBER  and  AWK_STRING  values.           Anything
else should fail.

2012-07-17         Arnold D. Robbins     <arnold@skeeve.com>

        Speedup:

        *    awk.h   (r_free_wstr):   Renamed   from   free_wstr.
        (free_wstr):  Macro  to  test  the  WSTRCUR  flag  first.
        * node.c (r_free_wstr): Renamed from free_wstr.

        Support value cookies:

        *   gawkapi.h   (awk_val_type_t):  Add  AWK_VALUE_COOKIE.
        (awk_value_cookie_t): New  type.           (awk_value_t):
Support   AWK_VALUE_COOKIE.           (api_create_value,  api_re-
lease_value):  New  function   pointers.            *   gawkapi.c
(awk_value_to_node,   api_sym_update_scalar,           valid_sub-
script_type): Handle AWK_VALUE_COOKIE.           (api_create_val-
ue, api_release_value): New functions.

2012-07-16         Arnold D. Robbins     <arnold@skeeve.com>

        *   gawkapi.c  (awk_value_to_node):  Support  AWK_SCALAR.
        (api_sym_update_scalar): Performance improvements.

2012-07-12         Arnold D. Robbins     <arnold@skeeve.com>

        Allow creation of constants. Thanks to John Haque for the
        implementation concept.

        *   gawk_api.h  (api_sym_constant):  Create  a  constant.
        *   gawk_api.h   (api_sym_update_real):   Renamed    from
api_sym_update.           Add is_const parameter and do the right
thing if true.          (api_sym_update, api_sym_constant):  Call
api_sym_update_real              in      the     correct     way.
        (set_constant): New function.

2012-07-11         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        * gawkapi.h: Fix typo in comment.          (awk_value_t):
Type  for  scalar_cookie  should  be  awk_scalar_t,           not
awk_array_t.           (gawk_api):  Add new api_sym_lookup_scalar
function.          (sym_lookup_scalar):  New  wrapper  macro  for
api_sym_lookup_scalar       hook.                *      gawkapi.c
(api_sym_lookup_scalar):   New   function   for   faster   scalar
        lookup.              (api_impl):     Add     entry    for
api_sym_lookup_scalar.

2012-07-11         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  gawkapi.c  (awk_value_to_node):  Change  to  a  switch
statement         so AWK_SCALAR or other invalid type is  handled
properly.           (valid_subscript_type):  Test whether a value
type is acceptable         for use as  an  array  subscript  (any
scalar    value    will   do).            (api_get_array_element,
api_set_array_element,  api_del_array_element):          Use  new
valid_subscript_type instead of restricting to string values.

2012-07-11         Arnold D. Robbins     <arnold@skeeve.com>

        Lots of API work.

        * gawkapi.h: Function pointer members renamed api_XXX and
        macros adjusted. More  documentation.           (awk_val-
type_t):    New    AWK_SCALAR    enum    for    scalar   cookies.
        (awk_scalar_t):  New  type.           (awk_value_t):  New
member  scalar_cookie.           (api_sym_update_scalar): New API
function.           (erealloc):  New  macro.           (make_con-
st_string):     New     macro,     renamed    from    dup_string.
        (make_malloced_string):   New   macro,    renamed    from
make_string.           (make_null_string):  New  inline function.
        (dl_load_func): Add call to init routine through  pointer
if         not NULL.

        *  gawkapi.c (awk_value_to_node): Assume that string val-
ues came         from malloc.          (node_to_awk_value):  Han-
dle       AWK_SCALAR.               (api_sym_update):      Ditto.
        (api_sym_update_scalar):           New           routine.
        (api_get_array_element):  Return  false  if  the  element
doesn't exist.          Always unref the subscript.          (re-
move_element):  New  helper routine.          (api_del_array_ele-
ment):  Use  it.           (api_release_flattened_array):  Ditto.
        (api_impl): Add the new routine.

2012-07-11          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        *  gawkapi.c  (api_sym_update):  Allow  val_type  to   be
AWK_UNDEFINED          for  setting  a variable to "", i.e. dupn-
ode(Nnull_string).

2012-07-10         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  awkgram.y  (add_srcfile):  Lint  warning message for a
previously loaded          shared  library  should  say  "already
loaded  shared  library"  instead          of  "already  included
source file".

2012-07-08         Arnold D. Robbins     <arnold@skeeve.com>

        * gawkapi.h (set_array_element): Use index  +  value  in-
stead          of  element  structure. Matches get_array_element.
        (set_array_element_by_elem): New macro to use an element.
        *  gawkapi.c  (api_set_array_element): Make the necessary
adjustments.

2012-07-04         Arnold D. Robbins     <arnold@skeeve.com>

        * awkgram.y (tokentab): Remove limit on number  of  argu-
ments          for  "and",  "or", and "xor".          * builtin.c
(do_and, do_or, do_xor): Modify code to perform  the          re-
spective  operation  on  any  number  of arguments. There must be
        at least two.

2012-06-29         Arnold D. Robbins     <arnold@skeeve.com>

        * gawkapi.h: Improve the documentation of the return val-
ues         per Andrew Schorr.

2012-06-25         Arnold D. Robbins     <arnold@skeeve.com>

        * TODO.xgawk: Updated.          * awk.h (track_ext_func):
Declared.          * awkgram.y (enum defref): Add option for  ex-
tension  function.          (struct fdesc): Add member for exten-
sion function.          (func_use):  Handle  extension  function,
mark  as  extension  and  defined.          (track_ext_func): New
function.           (check_funcs):  Update  logic  for  extension
functions.          * ext.c (make_builtin): Call track_ext_func.

2012-06-24          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * TODO.xgawk: Most of IOBUF has been  hidden.           *
gawkapi.h  (IOBUF):  Remove  declaration  (now  back  in  awk.h).
        (IOBUF_PUBLIC): Declare new structure defining subset  of
IOBUF  fields          that  should  be  exposed  to  extensions.
        (gawk_api): Update register_open_hook argument from IOBUF
to         IOBUF_PUBLIC.          * awk.h (IOBUF): Restore decla-
ration with 5 fields moved to new         IOBUF_PUBLIC structure.
        (register_open_hook):   Update  open_func  argument  from
IOBUF to         IOBUF_PUBLIC.          *  gawkapi.c  (api_regis-
ter_open_hook):    Ditto.            *   io.c   (after_beginfile,
nextfile, iop_close, gawk_pclose): Some fields         such as fd
and   name   are   now   inside   the   IOBUF  public  structure.
        (struct open_hook): Update open_func argument from  IOBUF
to                      (register_open_hook):              Ditto.
        (find_open_hook):   opaque   now   inside   IOBUF_PUBLIC.
        (iop_alloc):   fd   and   name   now   in   IOBUF_PUBLIC.
        (get_a_record): If the get_record hook returns  EOF,  set
the  IOP_AT_EOF          flag.   Access  fd  inside IOBUF_PUBLIC.
        (get_read_timeout): File name  now  inside  IOBUF_PUBLIC.
        *   interpret.h   (r_interpret):  File  name  now  inside
IOBUF_PUBLIC.          * ext.c (load_ext): No need to call return
at the end of a void         function.

2012-06-24         Arnold D. Robbins     <arnold@skeeve.com>

        *  ext.c  (load_ext):  Don't  return  a value from a void
function.          * gawkapi.c  (api_set_array_element):  Set  up
vname and parent_array.

2012-06-21         Arnold D. Robbins     <arnold@skeeve.com>

        More API and cleanup:

        *  awk.h  (stopme): Make signature match other built-ins.
        * awkgram.y (stopme): Make signature match  other  built-
ins.            (regexp):   Minor   edit.            *  gawkapi.c
(api_set_argument): Remove  unused  variable.           Set  par-
ent_array  field  of  array  value.          * TODO.xgawk: Update
some.

        Remove extension() builtin.

        * awk.h (do_ext): Removed.          (load_ext): Signature
changed.            *   awkgram.y   (tokentab):   Remove  do_ext.
        Change calls to do_ext.          * ext.c (load_ext): Make
init  function a constant.          * main.c (main): Change calls
to do_ext.

2012-06-20         Arnold D. Robbins     <arnold@skeeve.com>

        Restore lost debugging function:

        * awkgram.y (stopme): Restore long lost  debugging  func-
tion.          * awk.h (stopme): Add declaration.

        API work:

        *  ext.c  (get_argument):  Make  extern.          * awk.h
(get_argument): Declare it.          *  gawkapi.c  (api_set_argu-
ment):  Call  it.  Finish  off the logic.          (api_get_argu-
ment): Refine logic to  use  get_argument.           *  gawkapi.h
(set_argument): New API.

2012-06-19         Arnold D. Robbins     <arnold@skeeve.com>

        Remove code duplication in gawkapi.c from msg.c:

        *  awk.h (err): Add `isfatal' first parameter.          *
awkgram.y (err): Adjust all calls.          * msg.c (err): Adjust
all  calls.  Move fatal code to here ...          (r_fatal): From
here.          * gawkapi.c: Remove code  duplication  and  adjust
calls to `err'.

        Handle deleting elements of flattened array:

        *  awk.h  (get_argument):  Remove declaration.          *
ext.c   (get_argument):   Make   static.            *   gawkapi.h
(awk_flat_array_t):  Make  opaque  fields const. Add         more
descriptive comments.          * gawkapi.c (release_flattened_ar-
ray):  Delete  elements  flagged          for  deletion. Free the
flattened array also.

        Add additional debugging when developing:

        *   configure.ac:   Add   additional   debugging   flags.
        * configure: Regenerated.

2012-06-18         Arnold D. Robbins     <arnold@skeeve.com>

        * gawkapi.h (get_array_element): Restore `wanted' parame-
ter.          (awk_element_t): Use  awk_value_t  for  index.  Add
awk_flat_array_t.           (flatten_array):  Change signature to
use awk_flat_array_t;          (release_flattened_array):  Change
signature    to   use   awk_flat_array_t;           *   gawkapi.c
(api_sym_update): Handle  case  where  variable  exists  already.
        (api_get_array_element):  Restore  `wanted' parameter and
pass it         on  to  node_to_awk_value.           (api_set_ar-
ray_element):    Revisse   to   match   changed   element   type.
        (api_flatten_array):   Revise    signature,    implement.
        (api_release_flattened_array):  Revise  signature, imple-
ment.

2012-06-17         Arnold D. Robbins     <arnold@skeeve.com>

        API Work:

        * gawkapi.h (get_array_element): Remove `wanted'  parame-
ter.           (r_make_string):  Comment  the  need for `api' and
`ext_id' parameters.          * gawkapi.c (api_sym_update):  Move
checks to front.          Initial code for handling arrays. Still
needs   work.            (api_get_array_element):    Implemented.
        (api_set_array_element):    Additional   checking   code.
        (api_del_array_element): Implemented.           (api_cre-
ate_array):  Implemented.           (init_ext_api):  Force do_xxx
values to be 1 or 0.          (update_ext_api): Ditto.

2012-06-12         Arnold D. Robbins     <arnold@skeeve.com>

        API Work:

        *     gawkapi.h     (awk_value_t):     Restore     union.
        (get_curfunc_param): Renamed to get_argument. Return type
changed         to awk_bool_t. Semantics better thought  out  and
documented.          (awk_atexit, get_array_element): Return type
now void.          (sym_lookup): Return type now  void.  Argument
order rationalized.          * gawkapi.c (node_to_awk_value): Re-
turn type is now awk_bool_t.          Semantics now  match  table
in  gawkawpi.h.           (api_awk_atexit): Return type now void.
        (api_sym_lookup): Return type is now  awk_bool_t.  Change
parameter         order.          (api_get_array_element): Return
type is now awk_bool_t.

        Further API implementations and fixes for  extension/tes-
text.c:

        *  awk.h  (final_exit): Add declaration.          * ext.c
(load_ext): Change `func' to install_func.          *  gawkapi.c:
Add   casts   to   void   for   id   param   in   all  functions.
        (api_sym_update):         Finish          implementation.
        (api_get_array_element):       Start      implementation.
        (api_set_array_element):     Add     error      checking.
        (api_get_element_count):  Add  error checking, return the
right value.          * main.c (main): Call final_exit instead of
exit.           (arg_assign):  Ditto.          * msg.c (final_ex-
it):  New  routine  to  run   the   exit   handlers   and   exit.
        (gawk_exit):  Call it.          * profile.c (dump_and_ex-
it): Ditto.

2012-06-10         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  TODO.xgawk: Addition of time extension moved to "done"
section.

2012-06-10         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        * gawkapi.c (api_update_ERRNO_string): Treat boolean true
as a request         for TRANSLATE, and false as DONT_TRANSLATE.

2012-06-06         Arnold D. Robbins     <arnold@skeeve.com>

        * cint_array.c (tree_print, leaf_print):  Add  additional
casts         for printf warnings.

        *  awk.h  (update_ext_api):  Add  declaration.          *
gawkapi.c  (update_ext_api):  New  function.           *   eval.c
(set_LINT):   Call   update_ext_api()   at  the  end.           *
gawkapi.h: Document that do_XXX could change on the fly.

        *   awk.h   (run_ext_exit_handlers):   Add   declaration.
        * msg.c (gawk_exit): Call it.

2012-06-05         Arnold D. Robbins     <arnold@skeeve.com>

        * ext.c (load_ext): Remove use of RTLD_GLOBAL. Not needed
in new         scheme. Clean up error messages.

2012-06-04         Arnold D. Robbins     <arnold@skeeve.com>

        * configure.ac: Remove use of  -export-dynamic  for  GCC.
        * configure: Regenerated.

2012-05-30         Arnold D. Robbins     <arnold@skeeve.com>

        *  main.c  (is_off_limits_var):  Minor coding style edit.
        *   gawkapi.c    (awk_value_to_node):    More    cleanup.
        (node_to_awk_value):  Use  `wanted'  for decision making.
        (api_sym_update): Start implementation. Needs more  work.
        General:  More  cleanup,  comments.           * gawkapi.h
(api_sym_update): Add additional comments.

2012-05-29         Arnold D. Robbins     <arnold@skeeve.com>

        * gawkapi.c (node_to_awk_value): Add third parameter  in-
dicating  type          of  value  desired.  Based  on  that,  do
force_string or force_number         to  get  the  "other"  type.
        (awk_value_to_node):   Clean   up   the   code   a   bit.
        (get_curfunc_param):  Move   forcing   of   values   into
node_to_awk_value.          (api_sym_lookup): Add third parameter
indicating type  of  value  wanted.           (api_get_array_ele-
ment):  Ditto.           *  gawk_api.h:  Additional  comments and
clarifications. Revise APIs         to take third 'wanted'  argu-
ment  as above.          (awk_value_t): No longer a union so that
both values may be accessed.          All  macros:  Parenthesized
the bodies.          * bootstrap.sh: Rationalize a bit.

2012-05-26          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * Makefile.am (include_HEADERS): Add so gawkapi.h will be
installed.           (base_sources):  Add gawkapi.h so that it is
in dist tarball.          * TODO.xgawk: Update.          * main.c
(is_off_limits_var):   Stop   returning   true   for   everything
        except PROCINFO.

2012-05-25         Arnold D. Robbins     <arnold@skeeve.com>

        * main.c (is_off_limits_var): New function to check if  a
variable          is  one  that  an  extension  function  may not
change.           *  awk.h   (is_off_limits_var):   Declare   it.
        * gawkapi.c (api_sym_lookup): Use it.

        *  bootstrap.sh: Touch various files in the extension di-
rectory also.

2012-05-24         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        * gawkapi.h (awk_param_type_t): Remove (use awk_valtype_t
instead).          (awk_ext_func_t): Pass a result argument,  and
return  an  awk_value_t *.          (gawk_api.get_curfunc_param):
Add a result argument.          (gawk_api.set_return_value):  Re-
move     obsolete     function.             (gawk_api.sym_lookup,
gawk_api.get_array_element):  Add  a   result           argument.
        (gawk_api.api_make_string, gawk_api.api_make_number): Re-
move hooks,         since access to gawk internal  state  is  not
required to do this.          (set_return_value): Remove obsolete
macro.           (get_curfunc_param,  sym_lookup,  get_array_ele-
ment):  Add  result  argument.          (r_make_string, make_num-
ber):  New  static   inline   functions.            (make_string,
dup_string):  Revise  macro definitions.          (dl_load_func):
Remove global_api_p and global_ext_id args,         and fix  SEGV
by   setting   api   prior   to  checking  its  version  members.
        (GAWK): Expand ifdef to include  more  stuff.           *
gawkapi.c     (node_to_awk_value):     Add    result    argument.
        (api_get_curfunc_param): Add  result  argument,  and  use
awk_valtype_t.           (api_set_return_value):  Remove obsolete
function.          (awk_value_to_node): New  global  function  to
convert       back       into       internal              format.
        (api_add_ext_func):     Simply     call     make_builtin.
        (node_to_awk_value):  Add  result  argument,  and  handle
Node_val case.          (api_sym_lookup,  api_get_array_element):
Add result argument.          (api_set_array_element): Implement.
        (api_make_string, api_make_number): Remove functions that
belong  on         client side.          (api_impl): Remove 3 ob-
solete  entries.           *  TODO.xgawk:   Update   to   reflect
progress.           *  Makefile.am (base_sources): Add gawkapi.c.
        * awk.h: Include gawkapi.h  earlier.           (api_impl,
init_ext_api,  awk_value_to_node): Add declarations         so we
can hook in new API.          (INSTRUCTION): Add new  union  type
efptr  for external functions.          (extfunc): New define for
d.efptr.          (load_ext): Remove 3rd obj  argument  that  was
never  used  for anything.          (make_builtin): Change signa-
ture for new API.          * awkgram.y (load_library): Change 2nd
argument  to  load_ext         from dlload to dl_load, and remove
pointless  3rd   argument.            *   main.c   (main):   Call
init_ext_api()  before  loading shared libraries.          Change
2nd argument to load_ext  from  dlload  to  dl_load,  and  remove
        pointless 3rd argument.          * ext.c (do_ext): Remove
pointless 3rd argument to load_ext.           (load_ext):  Remove
3rd   argument.    Port   to   new   API  (change  initialization
        function signature).  If initialization  function  fails,
issue   a   warning           and   return  -1,  else  return  0.
        (make_builtin): Port to new API.           *  interpret.h
(r_interpret):   For   Op_ext_builtin,  call  external  functions
        with an awk_value_t result buffer, and  convert  the  re-
turned value         to a NODE *.  For Node_ext_func, code now in
extfunc instead of builtin.

2012-05-21         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        * configure.ac: Remove libtool, and call configure in the
        extension subdirectory.  Change pkgextensiondir to remove
the         version number, since the new API has builtin version
checks.          * TODO.xgawk: Update.          * ltmain.sh:  Re-
moved, since libtool no longer used here.

2012-05-19          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * TODO.xgawk: Update to reflect progress and new  issues.
        * main.c (main): Add -i (--include) option.          (us-
age): Ditto.          * awkgram.y (add_srcfile): Eliminate dupli-
cates  only  for  SRC_INC         and SRC_EXTLIB sources (i.e. -f
duplicates should not be removed).          * io.c (find_source):
Set DEFAULT_FILETYPE to ".awk" if not defined         elsewhere.

2012-05-15         Arnold D. Robbins     <arnold@skeeve.com>

        *  awk.h:  Include  "gawkapi.h"  to get IOBUF.          *
gawkapi.h: Considerable updates.          * gawkapi.c: New  file.
Start at implementing the APIs.

2012-05-13          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * TODO.xgawk: Update to reflect  recent  discussions  and
deletion of         extension/xreadlink.[ch].

2012-05-11         Arnold D. Robbins     <arnold@skeeve.com>

        Sweeping  change:  Use `bool', `true', and `false' every-
where.

2012-04-09         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        * eval.c (unset_ERRNO): Fix memory management bug -- need
to use         dupnode with Nnull_string.

2012-04-08         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  Makefile.am (valgrind): Define VALGRIND instead of re-
defining AWK.          This allows test/Makefile.am to set up the
command   environment   as          desired.           (valgrind-
noleak):  Ditto,  plus  set  --leak-check=no   instead   of   the
        default summary setting.

2012-04-07          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * TODO.xgawk: Update to reflect progress.

2012-04-01         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  TODO.xgawk: Move valgrind-noleak item into "done" sec-
tion.          * Makefile.am (valgrind-noleak): Add new  valgrind
rule  that  omits          the "--leak-check=full" option to help
spot more serious problems.

2012-04-01         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  TODO.xgawk:  Move  ERRNO  item  into  "done"  section.
        * awk.h (update_ERRNO, update_ERRNO_saved): Remove decla-
rations.           (update_ERRNO_int,  enum  errno_translate, up-
date_ERRNO_string,         unset_ERRNO):  Add  new  declarations.
        *  eval.c  (update_ERRNO_saved):  Renamed  to  update_ER-
RNO_int.          (update_ERRNO_string, unset_ERRNO):  New  func-
tions.           *  ext.c  (do_ext):  Use new update_ERRNO_string
function.          * io.c (ERRNO_node): Remove  redundant  extern
declaration (in awk.h).          (after_beginfile, nextfile): Re-
place   update_ERRNO()   with            update_ERRNO_int(errno).
        (inrec):   Replace   update_ERRNO_saved  with  update_ER-
RNO_int.           (do_close):  Use   new   function   update_ER-
RNO_string.          (close_redir, do_getline_redir, do_getline):
Replace update_ERRNO_saved         with update_ERRNO_int.

2012-03-27         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  TODO.xgawk: Update to reflect debate about how to sup-
port Cygwin         and other platforms that cannot  link  shared
libraries  with  unresolved          references.           * awk-
gram.y (add_srcfile):  Minor  bug  fix:  reverse  sense  of  test
        added  by  Arnold in last patch.          * configure.ac:
AC_DISABLE_STATIC must come before AC_PROG_LIBTOOL.

2012-03-26         Arnold D. Robbins     <arnold@skeeve.com>

        Some cleanups.

        * awkgram.y (add_srcfile): Use whole messages, better for
        translations.          * io.c (init_awkpath): Small style
tweak.          * main.c (path_environ): Straighten  out  initial
comment,  fix         compiler warning by making `val' const char
*.

2012-03-25         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  configure.ac  (AC_DISABLE_STATIC):  Add  this to avoid
building useless         static extension libraries.

2012-03-25         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  TODO.xgawk:  New  file  listing  completed and pending
xgawk enhancements.

2012-03-24         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *  io.c  (path_info):  Fix white space.          (pi_awk-
path,    pi_awklibpath):    Avoid     structure     initializers.
        (do_find_source):    Eliminate   pointless   parentheses.
        (find_source): Leave a space after "&".          * main.c
(load_environ): Fix typo in comment.

2012-03-21          Andrew  J.  Schorr     <aschorr@telemetry-in-
vestments.com>

        * awkgram.y  (LEX_LOAD):  New  token  to  support  @load.
        (grammar):  Add  rules  to  support  @load.          (to-
kentab): Add "load".          (add_srcfile): Improve  error  mes-
sage  to  distinguish between source files         and shared li-
braries.          (load_library): New function to load  libraries
specified  with @load.          (yylex): Add support for LEX_LOAD
(treated the same way as LEX_INCLUDE).

2012-03-20         Andrew  J.  Schorr      <aschorr@telemetry-in-
vestments.com>

        *    Makefile.am    (EXTRA_DIST):    Remove    extension.
        (SUBDIRS): Add extension  so  libraries  will  be  built.
        (DEFS):  Define  DEFLIBPATH  and  SHLIBEXT so we can find
shared libraries.          * awk.h (deflibpath): New extern  dec-
laration.           *  configure.ac:  Add  support  for  building
shared libraries by adding         AC_PROG_LIBTOOL  and  AC_SUBST
for acl_shlibext and pkgextensiondir.          (AC_CONFIG_FILES):
Add extension/Makefile.          * io.c  (pi_awkpath,  pi_awklib-
path): New static structures to contain         path information.
        (awkpath, max_pathlen): Remove static variables  now  in-
side  pi_awkpath.           (init_awkpath):  Operate on path_info
structure to support both          AWKPATH  and  AWKLIBPATH.   No
need  for  max_path  to  be  static, since         this should be
called    only    once    for    each    environment    variable.
        (do_find_source):  Add  a  path_info arg to specify which
path to search.          Check the try_cwd  parameter  to  decide
whether  to  search  the current         directory (not desirable
for  AWKLIBPATH).           (find_source):   Choose   appropriate
path_info structure based on value         of the is_extlib argu-
ment.  Set EXTLIB_SUFFIX using SHLIBEXT define         instead of
hardcoding  ".so".          * main.c (path_environ): New function
to add  AWKPATH  or  AWKLIBPATH          to  the  ENVIRON  array.
        (load_environ): Call path_environ for AWKPATH and AWKLIB-
PATH.

2012-06-19         Arnold D. Robbins     <arnold@skeeve.com>

        * main.c (main): Do setlocale to "C" if  --characters-as-
bytes.          Thanks to "SP" for the bug report.

2012-05-09         Arnold D. Robbins     <arnold@skeeve.com>

        *  configure.ac: Added AC_HEADER_STDBOOL         * awk.h,
dfa.c, regex.c: Reworked to use results         of test  and  in-
clude missing_d/gawkbool.h.

2012-05-07         Arnold D. Robbins     <arnold@skeeve.com>

        *  array.c  (prnode):  Add  casts to void* for %p format.
        *   debug.c   (print_instruction):   Ditto.             *
builtin.c: Fix %lf format to be %f everywhere.

        Unrelated:

        *  replace.c: Don't include "config.h", awk.h gets it for
us.

2012-05-04         Arnold D. Robbins     <arnold@skeeve.com>

        * getopt.c [DJGPP]: Change to __DJGPP__.           *  mb-
support.h [DJGPP]: Change to __DJGPP__.

        Unrelated:

        * awk.h: Workarounds for _TANDEM_SOURCE.

2012-05-01         Arnold D. Robbins     <arnold@skeeve.com>

        *  dfa.c:  Sync with GNU grep. RRI code now there, needed
additional         change for gawk.          * configure.ac:  Add
check  for  stdbool.h.           *  regex.c: Add check for if not
have stdbool.h, then define the         bool stuff.

2012-04-27         Arnold D. Robbins     <arnold@skeeve.com>

        *  dfa.c:  Sync  with  GNU  grep.            *   xalloc.h
(xmemdup): Added, from grep, for dfa.c. Sigh.

2012-04-27         Arnold D. Robbins     <arnold@skeeve.com>

        Update to autoconf 2.69, automake 1.12.

        *  INSTALL,  aclocal.m4, configh.in, depcomp, install-sh,
missing,         mkinstalldirs, ylwrap: Updated.          *  con-
figure.ac (AC_TYPE_LONG_LONG_INT, AC_TYPE_UNSIGNED_LONG_LONG_INT,
        AC_TYPE_INTMAX_T, AC_TYPE_UINTMAX_T): Renamed  from  gl_*
versions.          * configure: Regenerated.

2012-04-24         Arnold D. Robbins     <arnold@skeeve.com>

        *    cmd.h    (dPrompt,   commands_Prompt,   eval_Prompt,
dgawk_Prompt): Changed          to  dbg_prompt,  commands_prompt,
eval_prompt,  dgawk_prompt.          * debug.c: Ditto.          *
command.y: Ditto.  Some minor whitespace and comments cleanup.

2012-04-24         Arnold D. Robbins     <arnold@skeeve.com>

        io.c cleanup and some speedup for RS as regexp parsing.

        * awk.h (Regexp): New members  has_meta  and  maybe_long.
        (enum   redirval):   Add   redirect_none   as   value  0.
        (remaybelong): Remove  function  declaration.           *
awkgram.y:  Use redirect_none instead of 0 for no redirect cases.
        * io.c (go_getline_redir): Second arg now  of  type  enum
redirval.             Changed    intovar    into   into_variable.
        (comments  and  whitespace):  Lots  of  general  cleanup.
        (socket_open):     readle     changed     to    read_len.
        (two_way_open): Add additional calls to os_close_on_exec.
        (rsrescan):  Simplify  code a bit and use RS->maybe_long.
        * re.c  (make_regexp):  Set  up  new  members  in  Regexp
struct.           (remaybelong): Remove function.          (reis-
string): Simplified code.

2012-04-16  Eli Zaretskii  <eliz@gnu.org>

        * io.c (read_with_timeout) [__MINGW32__]: Just  call  the
blocking          'read', as 'select' is only available for sock-
ets.          * mpfr.c (set_ROUNDMODE) [!HAVE_MPFR]: Renamed from
set_RNDMODE.           *  main.c  (load_procinfo): Declare name[]
also when HAVE_MPFR is         defined even though HAVE_GETGROUPS
etc. are not.

2012-04-12         John Haque      <j.eh@mchsi.com>

        *  array.c,  awk.h,  awkgram.y, builtin.c, command.y, de-
bug.c,         field.c, mpfr.c,  profile.c:  Change  RND_MODE  to
ROUND_MODE.

2012-04-11         John Haque      <j.eh@mchsi.com>

        * main.c (varinit): Change RNDMODE to ROUNDMODE.

2012-04-11         Arnold D. Robbins     <arnold@skeeve.com>

        * main.c: Change --arbitrary-precision to --bignum.

2012-04-02         John Haque      <j.eh@mchsi.com>

        Add support for arbitrary-precision arithmetic.

        *  mpfr.c:  New file.          * awk.h (struct exp_node):
Add union  to  handle  different  number  types.           (MPFN,
MPZN): New flag values.          (DO_MPFR, do_mpfr): New defines.
        (PREC_node,     RNDMODE_node):     Add      declarations.
        (PRECISION,  RND_MODE,  MNR,  MFNR, mpzval, do_ieee_fmt):
Add declarations.          (make_number, str2number,  format_val,
cmp_numbers):  Ditto.          (force_number): Change definition.
        (Func_pre_exec,    Func_post_exec):     New     typedefs.
        (POP_NUMBER,     TOP_NUMBER):     Change     definitions.
        (get_number_ui,  get_number_si,  get_number_d,   get_num-
ber_uj,           iszero,   IEEE_FMT,   mpg_float,   mpg_integer,
mpg_float,         mpg_integer):  New  defines.           *  awk-
gram.y   (tokentab):    Add   alternate   function   entries  for
MPFR/GMP.           (snode):  Choose  the  appropriate  function.
        (negate_num):   New   function   to   negate   a  number.
        (grammar): Use it.          (yylex): Adjust  number  han-
dling   code.            *   array.c  (value_info,  asort_actual,
sort_user_func):    Adjust    for            MPFR/GMP    numbers.
        (do_adump,  indent): Minor changes.          (sort_up_in-
dex_number,   sort_up_value_number,   sort_up_value_type):    Use
        cmp_numbers()   for   numeric   comparisons.            *
builtin.c (mpz2mpfr): New function.           (format_tree):  Ad-
just  to  handle  MPFR and GMP numbers.          * eval.c (regis-
ter_exec_hook):  New  function  to  manage   interpreter   hooks.
        (num_exec_hook,  pre_execute,  post_execute): New and ad-
justed  definitions.           (h_interpret):  Renamed  from  de-
bug_interpret.           (init_interpret): Changed to use the new
name.           (flags2str):  New  entries  for  MPFN  and  MPZN.
        (cmp_nodes): Reworked to use separate routine for numeric
comparisons.          (set_IGNORECASE, set_BINMODE, set_LINT, up-
date_NR,  update_FNR,          update_NF):  Adjust  code and some
cleanup.          * field.c (rebuild_record): Field copying  code
reworked  to  handle         MPFR/GMP numbers.          (set_NF):
Minor adjustment.          *  io.c  (INCREMENT_REC):  New  macro.
        (inrec,     do_getline):     Use     the    new    macro.
        (nextfile,     set_NR,     set_FNR,     get_read_timeout,
pty_vs_pipe):  Adjust  code          to  handle MPFR/GMP numbers.
        * interpret.h (r_interpret): Adjust TOP_NUMBER/POP_NUMBER
usage.             (EXEC_HOOK):   New   macro   and   definition.
        (DEBUGGING): Removed.           *  main.c  (DEFAULT_PREC,
DEFAULT_RNDMODE):  New  defines.          (opttab): New entry for
option arbitrary-precision.          (main): Handle the  new  op-
tion.          (usage): Add to usage message.          (varinit):
Add PREC and RNDMODE.          (load_procinfo): Install MPFR  and
GMP  related  items.          (version): Append MPFR and GMP ver-
sions to message.          * msg.c (err) :  Adjust  FNR  handling
with  MPFR/GMP.           *  node.c  (r_format_val): Renamed from
format_val.          (r_force_number): Return NODE *  instead  of
AWKNUM.              (make_number,     str2number,    format_val,
cmp_numpers: Defined and  initialized.           (r_unref):  Free
MPFR/MPZ numbers.          (get_numbase): Renamed from isnondeci-
mal and return the base.          (cmp_awknums): New function  to
compare  two AWKNUMs.          * command.y (yylex): Adjust number
handling code.          (grammar): Minor  adjustments  to  handle
negative  numbers.          * debug.c (init_debug): New function.
        (do_info,  do_set_var,  watchpoint_triggered,  serialize,
        initialize_watch_item, do_watch, print_watch_item): Minor
adjustments.           (debug_pre_execute):  Adjusted  to  handle
MPFR and GMP numbers.

2012-04-09         Arnold D. Robbins     <arnold@skeeve.com>

        * INSTALL, config.guess, config.sub, depcomp, install-sh,
        missing, mkinstalldirs, ylwrap: Update to latest from au-
tomake 1.11.4.

2012-04-08         Arnold D. Robbins     <arnold@skeeve.com>

        * Update various files to automake 1.11.4.

2012-03-30         Arnold D. Robbins     <arnold@skeeve.com>

        * configure.ac (GAWK_AC_NORETURN): Do as macro instead of
inline.

2012-03-29         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.h, dfa.c: Sync with grep. Major cleanups  and  some
changes          there.           * re.c (research): Pass size_t*
to dfaexec to match type change.          * configure.ac (AH_VER-
BATIM[_Noreturn]): Added from Paul Eggert to         ease compil-
ing.          (AC_INIT): Bump version.          * configure, con-
figh.in, version.c: Regenerated.

2012-03-28         Arnold D. Robbins     <arnold@skeeve.com>

        * 4.0.1: Release tar ball made.

2012-03-28         Arnold D. Robbins     <arnold@skeeve.com>

        *  getopt.c: Add DJGPP to list of platforms where it's ok
        to include <stdlib.h>.          *  awkgram.y,  builtin.c,
ext.c, mbsupport.h, re.c: Update         copyright year.

2012-03-21         Corinna Vinschen      <vinschen@redhat.com>

        * getopt.c: Add Cygwin to list of platforms where it's ok
        to include <stdlib.h>.

2012-03-20         Arnold D. Robbins     <arnold@skeeve.com>

        Get new getopt to work on Linux and C90 compilers:

        *    getopt.c:     Undef     ELIDE_CODE     for     gawk.
        (_getopt_internal_r): Init first.needs_free to 0. In test
for -W         move executable code to after declarations for C90
compilers.          * getopt1.c: Undef ELIDE_CODE for gawk.

        Minor bug fix with printf, thanks to John Haque:

        * builtin.c (format_tree): Initialize base to zero at the
top         of the while loop.

        Getting next tar ball ready:

        *  configure.ac:  Remove  duplicate  check  for  wcscoll.
Thanks         to Stepan Kasal.

2012-03-16         Arnold D. Robbins     <arnold@skeeve.com>

        * getopt.c, getopt.h, getopt1.c, getopt_int.h, regcomp.c,
        regex.c,  regex.h,  regex_internal.c,   regex_internal.h,
        regexec.c: Sync with GLIBC, what the heck.

2012-03-14         Eli Zaretskii  <eliz@gnu.org>

        *  mbsupport.h  (btowc): Change for non-DJGPP.          *
re.c (dfaerror): Add call to exit for DJGPP.

2012-03-14         Arnold D. Robbins     <arnold@skeeve.com>

        * regex_internal.c (re_string_skip_chars):  Fix  calcula-
tion  of          remain_len with m.b. chars. Thanks to Stanislav
Brabec         <sbrabec@suse.cz>.

2012-02-28         Arnold D. Robbins     <arnold@skeeve.com>

        * main.c (init_groupset): Make `getgroups' failing a non-
fatal          error.   After  all,  what's the big deal?  Should
help on Plan 9.

2012-02-27         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c (parse_bracket_exp): Revert changes 2012-02-15 to
stay         in sync with grep.          * dfa.h (dfarerror): Add
__attribute__ from grep.

2012-02-15         Arnold D. Robbins     <arnold@skeeve.com>

        Fix warnings from GCC 4.6.2 -Wall option.

        * awkgram.y (newline_eof): New function to  replace  body
of          NEWLINE_EOF  macro.          (yylex): Replace body of
NEWLINE_EOF macro.           *  dfa.c  (parse_bracket_exp):  Init
variables  to  zero.           *  ext.c  (dummy,  junk):  Remove.
        * regex_internal.c  (re_string_reconstruct):  Remove  buf
array. It was         set but not used.

2012-02-10         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c: Sync with GNU grep.

2012-02-07         Arnold D. Robbins     <arnold@skeeve.com>

        * main.c (main): Move init of `output_fp' to before pars-
ing of         program so that error messages  from  msg.c  don't
dump core.          Thanks to Michael Haardt <michael@moria.de>.

2012-01-13         Arnold D. Robbins     <arnold@skeeve.com>

        *  dfa.c  [is_valid_unibtye_character]: Fix from GNU grep
to         bug reported by me from Scott Deifik for DJGPP.

2012-01-03         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c: Sync with GNU grep.

2012-01-02         Arnold D. Robbins     <arnold@skeeve.com>

        *   io.c   (Read_can_timeout,   Read_timeout,    Read_de-
fault_timeout):         Renamed to use lower case.          Other
minor stylistic edits.

2012-01-01         John Haque      <j.eh@mchsi.com>

        * awk.h (struct iobuf): New entry  read_func.           *
io.c   (Read_can_timeout,   Read_timeout,  Read_default_timeout):
        New variables.          (init_io): New  routine  to  ini-
tialize  the variables.          (in_PROCINFO): New "clever" rou-
tine to  parse  elements  with  indices          separated  by  a
SUPSEP.           (get_read_timeout): New routine to read timeout
value for an IOBUF.          (read_with_timeout): New routine  to
read  from  a  fd  with  a  timeout.           (pty_vs_pipe): Use
in_PROCINFO().          (get_a_record): Set the timeout value and
the  read  routine  as  necessary.          * main.c (main): Call
init_io().

2011-12-31         Arnold D. Robbins     <arnold@skeeve.com>

        * profile_p.c: Remove the file.          *  msg.c  (err):
Remove check for name being dgawk.

2011-12-31         Arnold D. Robbins     <arnold@skeeve.com>

        *  awk.h  [STREQ, STREQN]: Remove macros.          * awk-
gram.y,  builtin.c,  command.y,  debug.c,  eval.c,          io.c,
msg.c: Change all uses to call strcmp, strncmp.

2011-12-28         Arnold D. Robbins     <arnold@skeeve.com>

        *  int_array.c,  str_array.c:  Fix some compiler warnings
32/64         bit system differences.

2011-12-26         John Haque      <j.eh@mchsi.com>

        Merge gawk, pgawk and  dgawk  into  a  single  executable
gawk.

        *    awk.h    (DO_PRETTY_PRINT,   DO_PROFILE,   DO_DEBUG,
        do_pretty_print, do_debug): New defines.          (inter-
pret):  New  variable,  a  pointer  to  an  interpreter  routine.
        (enum exe_mode): Nuked.          * main.c  (opttab):  New
options  --pretty-print and --debug;         Remove option --com-
mand.          (usage): Update usage messages.          *  inter-
pret.h:  New  file.           * eval.c (r_interpret): Move to the
new file.           (debug_interpret):  New  interpreter  routine
when  debugging.           (init_interpret):  New routine to ini-
tialize   interpreter   related           variables.            *
eval_d.c, eval_p.c: Delete files.          * debug.c (interpret):
Renamed to  debug_prog.           (DEFAULT_PROMPT,  DEFAULT_HIST-
FILE,  DEFAULT_OPTFILE):  Remove prefix 'd'.          * profile.c
(init_profiling): Nuked.          * Makefile.am: Adjusted.

        Add command line option --load for loading extensions.

        *  awk.h  (srctype):  Add  new  source  type  SRC_EXTLIB.
        *   ext.c(load_ext):   New  routine  to  load  extension.
        (do_ext): Adjust to  use  load_ext().           *  main.c
(opttab): Add new option --load.          (main): Call load_ext()
to load extensions.          (usage): Add usage message  for  the
new    option.             *   io.c   (get_cwd):   New   routine.
        (do_find_source):     Use      the      new      routine.
        (find_source):  Handle  new  type  SRC_EXTLIB.          *
awkgram.y (parse_program, next_sourcefile): Skip type SRC_EXTLIB.
        (add_srcfile): Adjust call to find_source.          * de-
bug.c (source_find): Same.

        Unrelated:

        *   ext.c   (get_argument):   Fixed   argument   parsing.
        *  array.c (null_array_func): Reworked array routines for
an empty array.          *  str_array.c,  int_array.c:  Make  GCC
happy,  use  %u instead of %lu         printf formats.          *
eval.c (node_Boolean):  New  array  for  TRUE  and  FALSE  nodes.
        (init_interpret):      Create      the     new     nodes.
        (eval_condition):   Add   test   for   the   new   nodes.
        (setup_frame):  Disable  tail-recursion optimization when
profiling.          * interpret.h (r_interpret): Use the  boolean
nodes instead of making         new ones when needed.

2011-12-26         Arnold D. Robbins     <arnold@skeeve.com>

        Finish Rational Range Interpretation (!)

        *  dfa.c  (match_mb_charset): Compare wide characters di-
rectly         instead of using wcscoll().           *  regexec.c
(check_node_accept_byte): Ditto.

        Thanks to Paolo Bonzini for pointing these out.

2011-12-06         John Haque      <j.eh@mchsi.com>

        *  debug.c  (source_find):  Fix  misplaced call to efree.
        * profile.c (redir2str):  Add  a  missing  comma  in  the
redirtab array.          * eval.c (r_interpret): Disallow call to
exit if currule is undefined.          This avoids the possibili-
ty  of  running  END blocks more than once when         used in a
user-defined sorted-in comparison  function.           *  array.c
(sort_user_func): Adjust appropriately.

2011-12-06         Arnold D. Robbins     <arnold@skeeve.com>

        *  awk.h,  mbsupport.h:  Changes for MBS support on DJGPP
        and z/OS.          * io.c: Disable pty support on z/OS.

2011-11-27         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c:  Sync  with  GNU  grep.           *  dfa.h:  Add
_GL_ATTRIBUTE_PURE macro. Bleah.

2011-11-14         John Haque      <j.eh@mchsi.com>

        *  debug.c  (set_breakpoint_at): Fix problem with setting
        breakpoints in a switch statement. Thanks to Giorgio  Pa-
landri         <giorgio.palandri@gmail.com> for the bug report.

2011-11-14         Arnold D. Robbins     <arnold@skeeve.com>

        * mbsupport.h: Add check for HAVE_BTOWC, per Pat Rankin.

2011-11-12         Eli Zaretskii  <eliz@gnu.org>

        * mbsupport.h: Additional glop for dfa.c in Windows envi-
ronment.

2011-11-01         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c: Move glop for ! MBS_SUPPORT  to  ...           *
mbsupport.h:   ...  here.           *  replace.c:  Include  miss-
ing_d/wcmisc.c if  !  MBS_SUPPORT.           *  regex_internal.h:
Move  include of mbsupport.h up and add         additional checks
to avoid inclusion of wctype.h and wchar.h.

2011-10-27         Arnold D. Robbins     <arnold@skeeve.com>

        * builtin.c (do_strftime): Per  Pat  Rankin,  instead  of
casting          fclock,  use a long variable and check for nega-
tive or overflow.

2011-10-25         Arnold D. Robbins     <arnold@skeeve.com>

        Merge with gawk_performance branch done. Additionally:

        * cint_array.c, int_array.c,  str_array.c:  Fix  compiler
complaints         about printf formats (signed / unsigned vs. %d
/ %u).          * eval.c (setup_frame): Add a missing return val-
ue.

2011-10-25         Arnold D. Robbins     <arnold@skeeve.com>

        *  Makefile.am (dist-hook): Use `cd $(srcdir)/pc' so that
        `make distcheck' works completely.           *  builtin.c
(do_strftime): Add cast to long int in check         for fclock <
0 for systems where time_t is unsigned (e.g., VMS).

2011-10-25  Stefano Lattarini  <stefano.lattarini@gmail.com>

        dist: generated file `version.c' is not removed by  "make
distclean"

        *  Makefile.am  (distcleancheck_listfiles): Define to ig-
nore the         generated `version.c' file.

2011-10-24         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c (wcscoll): Create for VMS.          * Makefile.am
(dist-hook): Run sed scripts to make pc/config.h.

2011-10-24  Eli Zaretskii  <eliz@gnu.org>

        * builtin.c [HAVE_POPEN_H]: Include "popen.h".          *
README.git: Update for pc/ systems.

2011-10-21         Arnold D. Robbins     <arnold@skeeve.com>

        * Makefile.am (distcleancheck_listfiles): Added, per  ad-
vice    from            Stefano    Lattarini    <stefano.lattari-
ni@gmail.com>.          * dfa.c: Additional faking  of  mbsupport
for systems without it;         mainly VMS.

2011-10-21  Stefano Lattarini  <stefano.lattarini@gmail.com>

        *  configure.ac  (AM_C_PROTOTYPES):  Remove  call to this
macro.          The comments in configure.ac said that  the  call
to  AM_C_PROTOTYPES         was needed for dfa.h, synced from GNU
grep; but this statement is          not  true  anymore  in  grep
since  commit v2.5.4-24-g9b5e7d4 "replace         AC_CHECK_* with
gnulib modules", dating back to  2009-11-26.   Also,          the
support  for  automatic  de-ANSI-fication  has been deprecated in
        automake 1.11.2, and will be removed  altogether  in  au-
tomake  1.12.           *  vms/vms-conf.h  (PROTOTYPES,  __PROTO-
TYPES): Remove these #define,         they are not used  anymore.
        * pc/config.h (PROTOTYPES): Likewise.

2011-10-18         Dave Pitts            <dpitts@cozx.com>

        *  dfa.c:  Move  some decls to the top of their functions
for         C90 compilers.

2011-10-18         Arnold D. Robbins     <arnold@skeeve.com>

        * builtin.c (do_strftime): Add check for negative / over-
flowed          time_t  value with fatal error. Thanks to Hermann
Peifer         <peifer@gmx.eu> for  the  bug  report.           *
dfa.c   (setbit_wc):   Non-MBS   version.   Add  a  return  false
        since VMS compiler doesn't understand that abort  doesn't
return.

2011-10-10         Arnold D. Robbins     <arnold@skeeve.com>

        *  builtin.c (do_sub): Init textlen to zero to avoid "may
be         used uninitialized" warning. Thanks  to  Corinna  Vin-
schen  for          pointing  this  out.           *  eval.c (un-
wind_stack): Add parentheses around condition in while         to
avoid overzealous warning from GCC.

2011-09-30  Eli Zaretskii  <eliz@gnu.org>

        *  io.c  (remap_std_file):  Fix  non-portable  code  that
caused         redirected "print" to fail if a previous read from
standard  input          returned  EOF.  Reported by David Millis
<tvtronix@yahoo.com>.          (remap_std_file): Per  Eli's  sug-
gestion,  removed the leading close         of oldfd and will let
dup2 do the close for us.

2011-10-11         John Haque     <j.eh@mchsi.com>

        *  symbol.c:  Add  licence  notice.           *   array.c
(PREC_NUM, PREC_STR): Define as macros.

2011-10-09         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c: Sync with GNU grep.

2011-10-07         John Haque     <j.eh@mchsi.com>

        Tail  recursion optimization.          * awkgram.y (gram-
mar,  mk_function):   Recognize   tail-recursive           calls.
        *   awk.h   (tail_call,   num_tail_calls):  New  defines.
        * eval.c (setup_frame): Reuse  function  call  stack  for
        tail-recursive  calls.           (dump_fcall_stack):  Re-
worked.

2011-10-04         Arnold D. Robbins     <arnold@skeeve.com>

        * awk.h, main.c (gawk_mb_cur_max): Make it a  constant  1
when          MBS_SUPPORT  isn't available to allow GCC dead code
constant         expression computation and dead code elimination
to help out.

2011-10-02         Arnold D. Robbins     <arnold@skeeve.com>

        *  io.c  (rsnullscan,  get_a_record): Fix the cases where
terminators         are incomplete when RS == "".  Also  fix  the
case  where  the  new  value         is shorter than the old one.
Based on patch from Rogier         <rogier777@gmail.com> as  sub-
mitted by Jeroen Schot         <schot@A-Eskwadraat.nl>.

2011-09-24         Arnold D. Robbins     <arnold@skeeve.com>

        * eval.c, io.c, re.c: Fix some spelling errors. Thanks to
        Jeroen Schot <schot@A-Eskwadraat.nl>.

2011-09-21         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c, mbsupport.h: Sync with GNU grep. Large amount of
changes          that  remove many ifdefs, moving many conditions
for multibyte         support into regular  C  code  and  relying
GCC's dead code optimization         to eliminate code that won't
be needed.          * dfa.c: For gawk, add a number of additional
defines  so that things         will compile if MBS_SUPPORT is 0.
        * array.c, awk.h, awkgram.y, builtin.c, eval.c,  field.c,
main.c,         node.c, re.c: Change `#ifdef MBS_SUPPORT' to `#if
MBS_SUPPORT'.          * awk.h, regex_internal.h: Move  NO_MBSUP-
PORT handling to ...          * mbsupport.h: ...here.

2011-09-16         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c: Sync with GNU grep.

2011-09-08         John Haque     <j.eh@mchsi.com>

        Optimization   for  compound  assignment,  increment  and
        decrement operators; Avoid unref  and  make_number  calls
        when there is no extra references to the value NODE.

2011-09-03         Arnold D. Robbins     <arnold@skeeve.com>

        * dfa.c: Sync with GNU grep.

2011-08-31         John Haque     <j.eh@mchsi.com>

        Grammar  related  changes:  Simplify grammar for user-de-
fined         functions and general cleanups.

        * symbol.c: New file.          * awkgram.y:  Move  symbol
table  related  routines to the         new file.          (rule,
func_name,     function_prologue,     param_list):      Reworked.
        (install_function,  check_params):  Do  all  error checks
        for the function name and parameters before installing in
        the  symbol table.          (mk_function): Finalize func-
tion    definition.              (func_install,     append_param,
dup_params):  Nuked.           * symbol.c (make_params): allocate
function parameter nodes         for the symbol  table.  Use  the
hash  node  as Node_param_list;         Saves a NODE for each pa-
rameter.          (install_params): Install  function  parameters
into  the  symbol         table.          (remove_params): Remove
parameters out of the symbol table.          *  awk.h  (parmlist,
FUNC): Nuked.          (fparms): New define.

        Dynamically  loaded  function  parameters are now handled
like         those for a builtin.

        *  awk.h  (Node_ext_func,  Op_ext_builtin):  New   types.
        (Op_ext_func):  Nuked.           *  ext.c (make_builtin):
Simplified.          (get_curfunc_arg_count): Nuked; Use the  ar-
gument   'nargs'   of          the  extension  function  instead.
        (get_argument, get_actual_argument):  Adjust.           *
eval.c  (r_interpret):  Update  case  Op_func_call  for a dynamic
        extension function. Handle the new opcode Op_ext_builtin.
        * pprint (profile.c): Adjust.

        Use a single variable to process gawk options.

        *  awk.h  (do_flags): New variable.          (DO_LINT_IN-
VALID,      DO_LINT_ALL,       DO_LINT_OLD,       DO_TRADITIONAL,
        DO_POSIX,    DO_INTL,    DO_NON_DEC_DATA,   DO_INTERVALS,
        DO_PROFILING, DO_DUMP_VARS, DO_TIDY_MEM,         DO_SAND-
BOX):  New defines.          (do_traditional, do_posix, do_inter-
vals,   do_intl,            do_non_decimal_data,    do_profiling,
do_dump_vars,             do_tidy_mem,    do_sandbox,    do_lint,
        do_lint_old): Defined as macros.          *  main.c:  Re-
move  definitions  of  the  do_XX variables. Add         do_flags
definition.          * debug.c (execute_code, do_eval, parse_con-
dition):  Save          do_flags before executing/parsing and re-
store afterwards.

        Nuke PERM flag. Always increment/decrement the  reference
        count  for  a  Node_val.  Simplifies  macros  and  avoids
        occasional memory leaks, specially in the debugger.

        *  awk.h  (UPREF,  DEREF,  dupnode,  unref):  Simplified.
        (mk_number):  Nuked.          * (*.c): Increment the ref-
erence count of Nnull_string before         assigning as a value.

        Revamped array handling  mechanism  for  more  speed  and
        less memory consumption.

        *  awk.h  (union  bucket_item,  BUCKET): New definitions.
Used as         bucket elements for the  hash  table  implementa-
tions  of  arrays;          40%  space  saving  in  32  bit  x86.
        (buckets, nodes, array_funcs, array_base, array_capacity,
        xarray,   alookup,   aexists,   aclear,  aremove,  alist,
        acopy, adump,  NUM_AFUNCS):  New  defines.           (ar-
ray_empty):  New  macro to test for an empty array.          (as-
soc_lookup, in_array):  Defined  as  macros.           (enum  as-
soc_list_flags):  New declaration.          (Node_ahash, NUMIND):
Nuked.          *  eval.c  (r_interpret):  Adjust  cases  Op_sub-
script,           Op_subscript_lhs,  Op_store_var  and  Op_array-
for_incr.          * node.c (dupnode, unref): Removed code relat-
ed  to Node_ahash.          * str_array.c: New file to handle ar-
ray with string indices.          * int_array.c: New file to han-
dle  array  with  integer  indices.           * cint_array.c: New
file. Special handling of arrays with          (mostly)  consecu-
tive integer indices.

        Memory  pool management reworked to handle NODE and BUCK-
ET.

        * awk.h (struct block_item, BLOCK, block_id): New defini-
tions.          (getblock, freeblock): New macros.          (get-
bucket,  freebucket):  New  macros  to  allocate  and  deallocate
        a   BUCKET.            (getnode,   freenode):   Adjusted.
        * node.c (more_nodes): Nuked.          (more_blocks): New
routine to allocate blocks of memory.

2011-08-24         Arnold D. Robbins     <arnold@skeeve.com>

        Fix pty co-process communication on Ubuntu GNU/Linux.

        * io.c: Add include of <sys/ioctl.h> to get definition of
TIOCSCTTY.          (two_way_open): Move call for this  ioctl  to
after setsid() call.

2011-08-23         Arnold D. Robbins     <arnold@skeeve.com>

        *  regex_internal.c  (re_string_fetch_byte_case):  Remove
        __attribute((pure)) since it causes failures with gcc -O2
        -fno-inline.   Thanks  to  Neil  Cahill  <ncahill_alt@ya-
hoo.com>         for reporting the bug.

2011-08-10         John Haque      <j.eh@mchsi.com>

        BEGINFILE/ENDFILE related code redone.

        * awk.h (prev_frame_size, has_endfile, target_get_record,
        target_newfile):   New   defines.            *  awkgram.y
(mk_program):   Initialize    has_endfile    appropriately    for
        Op_get_record.           (parse_program):  Initialize new
jump targets for         Op_get_record and Op_newfile.          *
eval.c (unwind_stack): Change argument to number of         items
to be  left  in  the  stack.  Adjust  code.           (pop_fcall,
pop_stack):   New   defines.           (setup_frame):  Initialize
prev_frame_size.          (exec_state, EXEC_STATE): New structure
and    typedef.             (exec_state_stack):   New   variable.
        (push_exec_state, pop_exec_state): New functions to  save
and         later retrieve an execution state.          (r_inter-
pret): Use the new functions and  the  defines  in          cases
Op_K_getline,        Op_after_beginfile,        Op_after_endfile,
        Op_newfile and Op_K_exit.          *  io.c  (after_begin-
file):  When  skipping a file using nextfile,         return zero
in case there was an error opening the  file.           (has_end-
file): Nuke global variable.          (inrec): Add a second argu-
ment to pass errno to the calling         routine.          * de-
bug.c (print_instruction): Update cases.

2011-08-10         Arnold D. Robbins     <arnold@skeeve.com>

        Fix  (apparently long-standing) problem with FIELDWIDTHS.
        Thanks to Johannes Meixner <jsmeix@suse.de>.

        * field.c (set_FIELDWIDTHS): Adjust calculations.

        Fix problem with FPAT, reported by "T.  X.  G."  <leopar-
die333@yahoo.com>

        *  awk.h (Regexp): Add new member 'non_empty'.          *
field.c (fpat_parse_field): Save/restore local variable non_empty
        from member in Regexp struct.

2011-08-09         Arnold D. Robbins     <arnold@skeeve.com>

        Fix  pty  issue  reported by "T. X. G." <leopardie333@ya-
hoo.com>

        * configure.ac: Check for setsid.           *  awk.h:  If
not  HAVE_SETSID  define  it  as  an empty macro.          * io.c
(two_way_open): Call setsid if using pty's.

2011-07-29  Eli Zaretskii  <eliz@gnu.org>

        * builtin.c (format_tree): Rename  small  ->  small_flag,
        big  -> big_flag, bigbig -> bigbig_flag.  Solves compila-
tion errors         when building Gawk with libsigsegv on MS-Win-
dows,     see             https://lists.gnu.org/archive/html/bug-
gawk/2011-07/msg00029.html.

2011-07-28         Arnold D. Robbins     <arnold@skeeve.com>

        * builtin.c (do_sub): Revert to  gawk  3.1  behavior  for
backslash          handling. It was stupid to think I could break
compatibility.           Thanks  to   John   Ellson   <ellson@re-
search.att.com> for raising         the issue.

2011-07-26         John Haque      <j.eh@mchsi.com>

        *   eval.c  (r_interpret):  In  cases  Op_var_assign  and
Op_field_assign,         include Op_K_getline_redir in  the  test
for skipping the routine.

2011-07-26         John Haque      <j.eh@mchsi.com>

        Fix  handling  of  assign  routines  for  'getline  var'.
        Rework the previous fix for (g)sub.

        * awk.h: New define assign_ctxt for use in  Op_var_assign
        and  Op_field_assign opcodes. Remove define AFTER_ASSIGN.
        * awkgram.y (snode, mk_getline): Initialize  assign_ctxt.
        *  builtin.c  (do_sub): Adjust to take only the first two
        arguments.           *  eval.c  (r_interpret):  In  cases
Op_var_assign  and  Op_field_assign,          skip the routine as
appropriate.  Adjust  case  Op_sub_builtin.            *   main.c
(get_spec_varname):  New  function.          * debug.c (print_in-
struction): Use the new function to get         special  variable
name.

2011-07-17         Arnold D. Robbins     <arnold@skeeve.com>

        *  main.c (varinit): Mark FPAT as NON_STANDARD. Thanks to
        Wolfgang Seeberg <wolfgang.seeberg@yahoo.com> for the re-
port.          * Makefile.am (EXTRA_DIST): Add po/README, per ad-
vice from         Bruno Haible.          * dfa.c: Sync  with  GNU
grep.          * xalloc.h (xzalloc): New function, from GNU grep,
for dfa.c.          * README: Note that bug list is really a real
mailing list.

2011-07-16         Arnold D. Robbins     <arnold@skeeve.com>

        *  Makefile.am  (AUTOMAKE_OPTIONS):  Removed.           *
configure.ac (AM_INIT_AUTOMAKE): Removed  dist-bzip2  option,  on
        advice from Karl Berry.

2011-07-15         John Haque      <j.eh@mchsi.com>

        *  awk.h  (Op_sub_builtin):  New  opcode.          (GSUB,
GENSUB,     AFTER_ASSIGN,     LITERAL):     New     flags     for
        Op_sub_builtin.           *  awkgram.y (struct tokentab):
Change opcode to        Op_sub_builtin         for sub, gsub  and
gensub.          (snode): Update processing of sub, gsub and gen-
sub.          * builtin.c  (do_sub,  do_gsub,  do_gensub):  Nuke.
        (sub_common): Renamed to do_sub. Relocate gensub argument
        handling code from do_gensub to here; Simplify the code a
        little   bit.           *  eval.c  (r_interpret):  Handle
Op_sub_builtin. Avoid field         re-splitting or $0 rebuilding
if  (g)sub  target string is         a field and no substitutions
were done.          * pprint (profile.c): Add case  for  the  new
opcode.          * print_instruction (debug.c): Ditto.

        Take  out  translation for errno strings; extensions will
        need to use their own domain.

        * awk.h (enum  errno_translate):  Removed.           (up-
date_ERRNO_string): Remove second translate parameter.          *
eval.c (update_ERRNO_string): Remove second  translate  parameter
        and  code  that  used  it.           * gawkapi.h (api_up-
date_ERRNO_string):  Remove  third  translate          parameter.
        *   gawkapi.c   (api_update_ERRNO_string):  Remove  third
translate          parameter  and  change  call   to   update_ER-
RNO_string.           *  io.c  (do_close): Fix call to update_ER-
RNO_string.

2011-07-15         Arnold D. Robbins     <arnold@skeeve.com>

        * awk.h: Typo fix: "loner" --> longer. Thanks  to  Nelson
Beebe.           * builtin.c (efwrite): Fix flushing test back to
what it was         in 3.1.8.  Thanks  to  Strefil  <strefil@yan-
dex.ru>  for the problem         report.          * configure.ac:
Bump version to 4.0.0a for stable branch.

2011-06-24         Arnold D. Robbins     <arnold@skeeve.com>

        * Makefile.am (EXTRA_DIST): Add  ChangeLog.0.           *
4.0.0: Remake the tar ball.

2011-06-23         Arnold D. Robbins     <arnold@skeeve.com>

        *  configure.ac: Update version to 4.0.0.          * con-
figure: Regenerated.          *  ChangeLog.0:  Rotated  ChangeLog
into this file.          * ChangeLog: Created anew for gawk 4.0.0
and on.          * README:  Bump  version  to  4.0.0.           *
4.0.0: Release tar ball made.