diff options
| -rw-r--r-- | ChangeLog | 47 | ||||
| -rw-r--r-- | Makefile.in | 2 | ||||
| -rw-r--r-- | NEWS | 14 | ||||
| -rw-r--r-- | TODO | 205 | ||||
| -rw-r--r-- | awk.h | 1 | ||||
| -rw-r--r-- | builtin.c | 63 | ||||
| -rwxr-xr-x | configure | 20 | ||||
| -rw-r--r-- | configure.ac | 2 | ||||
| -rw-r--r-- | doc/ChangeLog | 12 | ||||
| -rw-r--r-- | doc/gawk.1 | 8 | ||||
| -rw-r--r-- | doc/gawk.info | 1199 | ||||
| -rw-r--r-- | doc/gawk.texi | 41 | ||||
| -rw-r--r-- | doc/gawktexi.in | 41 | ||||
| -rw-r--r-- | main.c | 9 | ||||
| -rw-r--r-- | pc/config.h | 6 | ||||
| -rw-r--r-- | str_array.c | 79 | ||||
| -rw-r--r-- | test/ChangeLog | 11 | ||||
| -rw-r--r-- | test/Makefile.am | 19 | ||||
| -rw-r--r-- | test/Makefile.in | 18 | ||||
| -rw-r--r-- | test/rand.ok | 2 | ||||
| -rw-r--r-- | test/randtest.ok | 0 | ||||
| -rwxr-xr-x | test/randtest.sh | 113 |
22 files changed, 1243 insertions, 669 deletions
@@ -1,3 +1,10 @@ +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@penguin.cs.ucla.edu> Bring in from GNULIB: @@ -118,6 +125,13 @@ 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 predictable + 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 @@ -484,6 +498,11 @@ * 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 @@ -501,6 +520,11 @@ * 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 \s and \S. @@ -520,6 +544,13 @@ * 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 @@ -601,6 +632,12 @@ * 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. @@ -609,6 +646,16 @@ 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_array.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 before initing the array if it was Node_var_new. (null_array): Restore assert, undoing change of 2013-05-27. diff --git a/Makefile.in b/Makefile.in index d243df5b..2abf5b46 100644 --- a/Makefile.in +++ b/Makefile.in @@ -107,7 +107,7 @@ DIST_COMMON = INSTALL NEWS README AUTHORS ChangeLog \ $(srcdir)/Makefile.in $(srcdir)/Makefile.am \ $(top_srcdir)/configure $(am__configure_deps) \ $(srcdir)/configh.in mkinstalldirs ABOUT-NLS awkgram.c \ - command.c depcomp ylwrap $(include_HEADERS) COPYING \ + command.c depcomp ylwrap $(include_HEADERS) COPYING TODO \ config.guess config.rpath config.sub install-sh missing ACLOCAL_M4 = $(top_srcdir)/aclocal.m4 am__aclocal_m4_deps = $(top_srcdir)/m4/arch.m4 \ @@ -4,6 +4,20 @@ are permitted in any medium without royalty provided the copyright notice and this notice are preserved. +Changes from 4.1.x to 4.2.0 +--------------------------- + +1. If not in POSIX mode, changes to ENVIRON are reflected into + gawk's environment, affecting any programs run by system() + or for piped redirections. + +2. The series of numbers returned by rand() should now be "more + random" than previously. Gawk's rand() remains repeatable; you will + get the same series of numbers each time you call rand() repeatedly, + but this will be a different series than previously. + +3. The --pretty-print option no longer runs the program too. + Changes from 4.1.1 to 4.1.2 --------------------------- @@ -0,0 +1,205 @@ +Tue Jun 24 13:11:49 IDT 2014 +============================ + +There were too many files tracking different thoughts and ideas for +things to do, or consider doing. This file merges them into one. As +tasks are completed, they should be moved to the DONE section, below, +or simply removed. + +Upon creation of a release (major or patch release), items from the +previous release should be removed. + +This file should exist only in the master branch or branches based off +of it for development, but not in the stable branch. This may require some +careful work with Git. + +TODO +==== + +Minor Cleanups and Code Improvements +------------------------------------ + + Nuke installing the igawk script and the igawk.1 man page. Just + remove them from the dist. Leave it in the manual though. + + Review the bash source script for working with shared libraries in + order to nuke the use of libtool. [ Partially started in the + nolibtool branch. ] + + Enhance profiling to save comments in a byte-code that does nothing + but that can be used when pretty printing the program. + + API: + ??? #if !defined(GAWK) && !defined(GAWK_OMIT_CONVENIENCE_MACROS) + + ?? Add debugger commands to reference card + + Look at function order within files. + + regex.h - remove underscores in param names + + Consider removing use of and/or need for the protos.h file. + + Recheck if gnulib regex can be dropped in + + Fully synchronize whitespace tests (for \s, \S in Unicode + environment) with those of GNU grep. + +Minor New Features +------------------ + + Add a div() function to do integer division result. Needed + esp for MPFR with large ints. + + Enhance extension/fork.c waitpid to allow the caller to specify + the options. And add an optional array argument to wait and + waitpid in which to return exit status information. + + Consider relaxing the strictness of --posix. + + Make it possible to put print/printf + redirections into + an expression. + + ? Add an optional base to strtonum, allowing 2-36. + + ? Optional third argument for index indicating where to start the + search. + +Major New Features +------------------ + + Think about how to generalize indirect access. Manuel Collado + suggests things like + + foo = 5 + @"foo" += 4 + + Also needed: + + Indirect calls of built-ins + Indirect calls of extension functions + Indirect through array elements, not just scalar variables + + Some way to make regexp constants first class citizens: + - Assign to variables + - Pass to functions + Tawk has this and it would also make indirect calling of builtins + work more reasonably. Probably would use a special syntax like + @/.../ for such objects. + + Consider a typeof() function that returns a string (scalar, array, + regexp). + + Add ability to do decimal arithmetic. + + Rework management of array index storage. (Partially DONE.) + + Consider using an atom table for all string array indices. + + DBM storage of awk arrays. Try to allow multiple dbm packages. + + ?? A RECLEN variable for fixed-length record input. PROCINFO["RS"] + would be "RS" or "RECLEN" depending upon what's in use. + *** Could this be done as an extension? + + ?? Use a new or improved dfa and/or regex library. + + Rewrite in C++. + +Things To Think About That May Never Happen +------------------------------------------- + + Consider making shadowed variables a warning and not + a fatal warning when --lint=fatal. + + Similar for extra parameters in a function call. + + Look at code coverage tools, like S2E: https://s2e.epfl.ch/ + + Try running with diehard. See http://www.diehard-software.org, + https://github.com/emeryberger/DieHard + + Implement namespaces. Arnold suggested the following in an email: + - Extend the definition of an 'identifier' to include "." as a valid + character although an identifier can't start with it. + - Extension libraries install functions and global variables with names + that have a "." in them: XML.parse(), XML.name, whatever. + - Awk code can read/write such variables and call such functions, + but they cannot define such functions + function XML.foo() { .. } # error + or create a variable with such a name if it doesn't exist. This would + be a run-time error, not a parse-time error. + - This last rule may be too restrictive. + I don't want to get into fancy rules a la perl and file-scope visibility + etc, I'd like to keep things simple. But how we design this is going + to be very important. + + Include a sample rpm spec file in a new packaging subdirectory. + (Really needed?) + + Patch lexer for @include and @load to make quotes optional. + (Really needed?) + + ? Have strftime() pay attention to the value of ENVIRON["TZ"] + + Add a lint check if the return value of a function is used but + the function did not supply a value. + + Consider making gawk output +nan for NaN values so that it + will accept its own output as input. + NOTE: Investigated this. GLIBC formats NaN as '-nan' + and -NaN as 'nan'. Dealing with this is not simple. + + Enhance FIELDWIDTHS with some way to indicate "the rest of the record". + E.g., a length of 0 or -1 or something. Maybe "n"? + + +DONE +==== + +Minor Cleanups and Code Improvements +------------------------------------ + +Minor New Features +------------------ + +Major New Features +------------------ + +Things That We Decided We Will Never Do +======================================= + + Consider moving var_value info into Node_var itself to reduce + memory usage. This would break all uses of get_lhs in the + code. It's too sweeping a change. + + Add macros for working with flags instead of using & and | + directly. + + FIX regular field splitting to use FPAT algorithm. + Note: Looked at this. Not sure it's with the trouble: + If it ain't broke... + + Scope IDs for IPv6 addresses + + Gnulib + + Make FIELDWIDTHS be an array? + + "Do an optimization pass over parse tree?" + This isn't relevant now that we are using a byte code engine. + + "Consider integrating Fred Fish's DBUG library into gawk." + I did this once as an experiment. But I don't see a lot of value + to this at this stage of the development. Stepping through things + in a debugger is generally enough. Also, I would have to try to + track down the latest version of this. + + "Make awk '/foo/' files... run at egrep speeds (how?)" + This has been on the list since the early days (gawk 1.x or early + 2.x). But I am not sure how to really do this, nor have I done + timings, nor does there seem to be any real demand for this. + + Change from dlopen to using the libltdl library (i.e. lt_dlopen). + This may support more platforms. If we move off of libtool + then this is the wrong direction. @@ -1361,6 +1361,7 @@ extern NODE *do_aoption(int nargs); extern NODE *do_asort(int nargs); extern NODE *do_asorti(int nargs); extern unsigned long (*hash)(const char *s, size_t len, unsigned long hsize, size_t *code); +extern void init_env_array(NODE *env_node); /* awkgram.c */ extern NODE *variable(int location, char *name, NODETYPE type); extern int parse_program(INSTRUCTION **pcode); @@ -2393,6 +2393,8 @@ static char *const state = (char *const) istate; NODE * do_rand(int nargs ATTRIBUTE_UNUSED) { + double tmprand; +#define RAND_DIVISOR ((double)GAWK_RANDOM_MAX+1.0) if (firstrand) { (void) initstate((unsigned) 1, state, SIZEOF_STATE); /* don't need to srandom(1), initstate() does it for us. */ @@ -2404,7 +2406,66 @@ do_rand(int nargs ATTRIBUTE_UNUSED) * * 0 <= n < 1 */ - return make_number((AWKNUM) (random() % GAWK_RANDOM_MAX) / GAWK_RANDOM_MAX); + /* + * Date: Wed, 28 Aug 2013 17:52:46 -0700 + * From: Bob Jewett <jewett@bill.scs.agilent.com> + * + * Call random() twice to fill in more bits in the value + * of the double. Also, there is a bug in random() such + * that when the values of successive values are combined + * like (rand1*rand2)^2, (rand3*rand4)^2, ... the + * resulting time series is not white noise. The + * following also seems to fix that bug. + * + * The add/subtract 0.5 keeps small bits from filling + * below 2^-53 in the double, not that anyone should be + * looking down there. + * + * Date: Wed, 25 Sep 2013 10:45:38 -0600 (MDT) + * From: "Nelson H. F. Beebe" <beebe@math.utah.edu> + * (4) The code is typical of many published fragments for converting + * from integer to floating-point, and I discuss the serious pitfalls + * in my book, because it leads to platform-dependent behavior at the + * end points of the interval [0,1] + * + * (5) the documentation in the gawk info node says + * + * `rand()' + * Return a random number. The values of `rand()' are uniformly + * distributed between zero and one. The value could be zero but is + * never one.(1) + * + * The division by RAND_DIVISOR may not guarantee that 1.0 is never + * returned: the programmer forgot the platform-dependent issue of + * rounding. + * + * For points 4 and 5, the safe way is a loop: + * + * double + * rand(void) // return value in [0.0, 1.0) + * { + * value = internal_rand(); + * + * while (value == 1.0) + * value = internal_rand(); + * + * return (value); + * } + */ + + do { + long d1, d2; + /* + * Do the calls in predictable order to avoid + * compiler differences in order of evaluation. + */ + d1 = random(); + d2 = random(); + tmprand = 0.5 + ( (d1/RAND_DIVISOR + d2) / RAND_DIVISOR ); + tmprand -= 0.5; + } while (tmprand == 1.0); + + return make_number((AWKNUM) tmprand); } /* do_srand --- seed the random number generator */ @@ -1,6 +1,6 @@ #! /bin/sh # Guess values for system-dependent variables and create Makefiles. -# Generated by GNU Autoconf 2.69 for GNU Awk 4.1.1a. +# Generated by GNU Autoconf 2.69 for GNU Awk 4.1.60. # # Report bugs to <bug-gawk@gnu.org>. # @@ -580,8 +580,8 @@ MAKEFLAGS= # Identity of this package. PACKAGE_NAME='GNU Awk' PACKAGE_TARNAME='gawk' -PACKAGE_VERSION='4.1.1a' -PACKAGE_STRING='GNU Awk 4.1.1a' +PACKAGE_VERSION='4.1.60' +PACKAGE_STRING='GNU Awk 4.1.60' PACKAGE_BUGREPORT='bug-gawk@gnu.org' PACKAGE_URL='http://www.gnu.org/software/gawk/' @@ -1324,7 +1324,7 @@ if test "$ac_init_help" = "long"; then # Omit some internal or obsolete options to make the list less imposing. # This message is too long to be a string in the A/UX 3.1 sh. cat <<_ACEOF -\`configure' configures GNU Awk 4.1.1a to adapt to many kinds of systems. +\`configure' configures GNU Awk 4.1.60 to adapt to many kinds of systems. Usage: $0 [OPTION]... [VAR=VALUE]... @@ -1394,7 +1394,7 @@ fi if test -n "$ac_init_help"; then case $ac_init_help in - short | recursive ) echo "Configuration of GNU Awk 4.1.1a:";; + short | recursive ) echo "Configuration of GNU Awk 4.1.60:";; esac cat <<\_ACEOF @@ -1512,7 +1512,7 @@ fi test -n "$ac_init_help" && exit $ac_status if $ac_init_version; then cat <<\_ACEOF -GNU Awk configure 4.1.1a +GNU Awk configure 4.1.60 generated by GNU Autoconf 2.69 Copyright (C) 2012 Free Software Foundation, Inc. @@ -2221,7 +2221,7 @@ cat >config.log <<_ACEOF This file contains any messages produced by compilers while running configure, to aid debugging if configure makes a mistake. -It was created by GNU Awk $as_me 4.1.1a, which was +It was created by GNU Awk $as_me 4.1.60, which was generated by GNU Autoconf 2.69. Invocation command line was $ $0 $@ @@ -3104,7 +3104,7 @@ fi # Define the identity of the package. PACKAGE='gawk' - VERSION='4.1.1a' + VERSION='4.1.60' cat >>confdefs.h <<_ACEOF @@ -11506,7 +11506,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1 # report actual input values of CONFIG_FILES etc. instead of their # values after options handling. ac_log=" -This file was extended by GNU Awk $as_me 4.1.1a, which was +This file was extended by GNU Awk $as_me 4.1.60, which was generated by GNU Autoconf 2.69. Invocation command line was CONFIG_FILES = $CONFIG_FILES @@ -11574,7 +11574,7 @@ _ACEOF cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1 ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`" ac_cs_version="\\ -GNU Awk config.status 4.1.1a +GNU Awk config.status 4.1.60 configured by $0, generated by GNU Autoconf 2.69, with options \\"\$ac_cs_config\\" diff --git a/configure.ac b/configure.ac index b0817ba3..e7e2d5f6 100644 --- a/configure.ac +++ b/configure.ac @@ -23,7 +23,7 @@ dnl dnl Process this file with autoconf to produce a configure script. -AC_INIT([GNU Awk], 4.1.1a, bug-gawk@gnu.org, gawk) +AC_INIT([GNU Awk], 4.1.60, bug-gawk@gnu.org, gawk) # This is a hack. Different versions of install on different systems # are just too different. Chuck it and use install-sh. diff --git a/doc/ChangeLog b/doc/ChangeLog index 8c979068..6f50befe 100644 --- a/doc/ChangeLog +++ b/doc/ChangeLog @@ -3,6 +3,11 @@ * gawktexi.in: Update permissions on copyright page per latest maintain.texi. Add GPL to print version of book. +2014-06-24 Arnold D. Robbins <arnold@skeeve.com> + + * gawktexi.in: Document that --pretty-print no longer runs the + program. Remove mention of GAWK_NO_PP_RUN env var. + 2014-06-22 Arnold D. Robbins <arnold@skeeve.com> * gawktexi.in: Typo fixes and minor corrections. @@ -299,7 +304,7 @@ 2013-12-26 Arnold D. Robbins <arnold@skeeve.com> * gawktexi.in: More minor additions / fixes. - (Bugs): Add John Malmberg for VMS. + (Bugs): Add John Malmberg for VMS. Other minor edits. 2013-12-25 Arnold D. Robbins <arnold@skeeve.com> @@ -373,6 +378,11 @@ * gawktexi.in (FN, FFN, DF,DDF, PVERSION, CTL): Remove macros. They have no alternate versions and are just in the way. +2013-08-15 Arnold D. Robbins <arnold@skeeve.com> + + * gawk.1: Document that ENVIRON updates affect the environment. + * gawktexi.in: Ditto. + 2013-06-27 Arnold D. Robbins <arnold@skeeve.com> * texinfo.tex: Update from Karl, fixes a formating problem. @@ -917,11 +917,17 @@ An array containing the values of the current environment. The array is indexed by the environment variables, each element being the value of that variable (e.g., \fBENVIRON["HOME"]\fP might be \fB"/home/arnold"\fR). -Changing this array does not affect the environment seen by programs which +.sp +In POSIX mode, +changing this array does not affect the environment seen by programs which .I gawk spawns via redirection or the .B system() function. +Otherwise, +.I gawk +updates its real environment so that programs it spawns see +the changes. .TP .B ERRNO If a system error occurs either doing a redirection for diff --git a/doc/gawk.info b/doc/gawk.info index 65ac7ab8..88c30646 100644 --- a/doc/gawk.info +++ b/doc/gawk.info @@ -2563,10 +2563,8 @@ The following list describes options mandated by the POSIX standard: different file name for the output. No space is allowed between the `-o' and FILE, if FILE is supplied. - NOTE: Due to the way `gawk' has evolved, with this option - your program is still executed. This will change in the next - major release such that `gawk' will only pretty-print the - program and not run it. + NOTE: In the past, this option would also execute your + program. This is no longer the case. `-O' `--optimize' @@ -2950,11 +2948,6 @@ change. The variables are: supposed to be differences, but occasionally theory and practice don't coordinate with each other.) -`GAWK_NO_PP_RUN' - If this variable exists, then when invoked with the - `--pretty-print' option, `gawk' skips running the program. This - variable will not survive into the next major release. - `GAWK_STACKSIZE' This specifies the amount by which `gawk' should grow its internal evaluation stack, when needed. @@ -10155,10 +10148,18 @@ Options::), they are not special. An associative array containing the values of the environment. The array indices are the environment variable names; the elements are the values of the particular environment variables. For - example, `ENVIRON["HOME"]' might be `"/home/arnold"'. Changing - this array does not affect the environment passed on to any - programs that `awk' may spawn via redirection or the `system()' - function. (In a future version of `gawk', it may do so.) + example, `ENVIRON["HOME"]' might be `/home/arnold'. + + For POSIX `awk', changing this array does not affect the + environment passed on to any programs that `awk' may spawn via + redirection or the `system()' function. + + However, beginning with version 4.2, if not in POSIX compatibility + mode, `gawk' does update its own environment when `ENVIRON' is + changed, thus changing the environment seen by programs that it + creates. You should therefore be especially careful if you modify + `ENVIRON["PATH"]"', which is the search path for finding + executable programs. Some operating systems may not have environment variables. On such systems, the `ENVIRON' array is empty (except for @@ -19627,8 +19628,8 @@ by the `Ctrl-<\>' key. called this way, `gawk' "pretty prints" the program into `awkprof.out', without any execution counts. - NOTE: The `--pretty-print' option still runs your program. This - will change in the next major release. + NOTE: Once upon a time, the `--pretty-print' option would also run + your program. This is is no longer the case. File: gawk.info, Node: Advanced Features Summary, Prev: Profiling, Up: Advanced Features @@ -30976,20 +30977,20 @@ Index * --include option: Options. (line 159) * --lint option <1>: Options. (line 185) * --lint option: Command Line. (line 20) -* --lint-old option: Options. (line 295) +* --lint-old option: Options. (line 293) * --load option: Options. (line 173) * --non-decimal-data option <1>: Nondecimal Data. (line 6) * --non-decimal-data option: Options. (line 211) * --non-decimal-data option, strtonum() function and: Nondecimal Data. (line 36) -* --optimize option: Options. (line 237) -* --posix option: Options. (line 254) -* --posix option, --traditional option and: Options. (line 273) +* --optimize option: Options. (line 235) +* --posix option: Options. (line 252) +* --posix option, --traditional option and: Options. (line 271) * --pretty-print option: Options. (line 224) * --profile option <1>: Profiling. (line 12) -* --profile option: Options. (line 242) -* --re-interval option: Options. (line 279) -* --sandbox option: Options. (line 286) +* --profile option: Options. (line 240) +* --re-interval option: Options. (line 277) +* --sandbox option: Options. (line 284) * --sandbox option, disabling system() function: I/O Functions. (line 97) * --sandbox option, input redirection with getline: Getline. (line 19) @@ -30997,9 +30998,9 @@ Index (line 6) * --source option: Options. (line 117) * --traditional option: Options. (line 81) -* --traditional option, --posix option and: Options. (line 273) +* --traditional option, --posix option and: Options. (line 271) * --use-lc-numeric option: Options. (line 219) -* --version option: Options. (line 300) +* --version option: Options. (line 298) * --with-whiny-user-strftime configuration option: Additional Configuration Options. (line 35) * -b option: Options. (line 68) @@ -31012,26 +31013,26 @@ Index * -f option: Options. (line 25) * -F option: Options. (line 21) * -f option: Long. (line 12) -* -F option, -Ft sets FS to TAB: Options. (line 308) +* -F option, -Ft sets FS to TAB: Options. (line 306) * -F option, command line: Command Line Field Separator. (line 6) -* -f option, multiple uses: Options. (line 313) +* -f option, multiple uses: Options. (line 311) * -g option: Options. (line 147) * -h option: Options. (line 154) * -i option: Options. (line 159) -* -L option: Options. (line 295) +* -L option: Options. (line 293) * -l option: Options. (line 173) * -M option: Options. (line 205) * -N option: Options. (line 219) * -n option: Options. (line 211) -* -O option: Options. (line 237) +* -O option: Options. (line 235) * -o option: Options. (line 224) -* -P option: Options. (line 254) -* -p option: Options. (line 242) -* -r option: Options. (line 279) -* -S option: Options. (line 286) +* -P option: Options. (line 252) +* -p option: Options. (line 240) +* -r option: Options. (line 277) +* -S option: Options. (line 284) * -v option: Assignment Options. (line 12) -* -V option: Options. (line 300) +* -V option: Options. (line 298) * -v option: Options. (line 32) * -W option: Options. (line 46) * . (period), regexp operator: Regexp Operators. (line 44) @@ -31304,7 +31305,7 @@ Index * awf (amazingly workable formatter) program: Glossary. (line 24) * awk debugging, enabling: Options. (line 108) * awk language, POSIX version: Assignment Ops. (line 137) -* awk profiling, enabling: Options. (line 242) +* awk profiling, enabling: Options. (line 240) * awk programs <1>: Two Rules. (line 6) * awk programs <2>: Executable Scripts. (line 6) * awk programs: Getting Started. (line 12) @@ -31711,7 +31712,7 @@ Index * cosine: Numeric Functions. (line 15) * counting: Wc Program. (line 6) * csh utility: Statements/Lines. (line 44) -* csh utility, POSIXLY_CORRECT environment variable: Options. (line 355) +* csh utility, POSIXLY_CORRECT environment variable: Options. (line 353) * csh utility, |& operator, comparison with: Two-way I/O. (line 44) * ctime() user-defined function: Function Example. (line 73) * currency symbols, localization: Explaining gettext. (line 104) @@ -31746,9 +31747,9 @@ Index * dark corner, exit statement: Exit Statement. (line 30) * dark corner, field separators: Field Splitting Summary. (line 46) -* dark corner, FILENAME variable <1>: Auto-set. (line 90) +* dark corner, FILENAME variable <1>: Auto-set. (line 98) * dark corner, FILENAME variable: Getline Notes. (line 19) -* dark corner, FNR/NR variables: Auto-set. (line 301) +* dark corner, FNR/NR variables: Auto-set. (line 309) * dark corner, format-control characters: Control Letters. (line 18) * dark corner, FS as null string: Single Character Fields. (line 20) @@ -31894,7 +31895,7 @@ Index * debugger, read commands from a file: Debugger Info. (line 96) * debugging awk programs: Debugger. (line 6) * debugging gawk, bug reports: Bugs. (line 9) -* decimal point character, locale specific: Options. (line 270) +* decimal point character, locale specific: Options. (line 268) * decrement operators: Increment Ops. (line 35) * default keyword: Switch Statement. (line 6) * Deifik, Scott <1>: Bugs. (line 71) @@ -31933,12 +31934,12 @@ Index (line 81) * differences in awk and gawk, command line directories: Command line directories. (line 6) -* differences in awk and gawk, ERRNO variable: Auto-set. (line 74) +* differences in awk and gawk, ERRNO variable: Auto-set. (line 82) * differences in awk and gawk, error messages: Special FD. (line 16) * differences in awk and gawk, FIELDWIDTHS variable: User-modified. (line 37) * differences in awk and gawk, FPAT variable: User-modified. (line 43) -* differences in awk and gawk, FUNCTAB variable: Auto-set. (line 115) +* differences in awk and gawk, FUNCTAB variable: Auto-set. (line 123) * differences in awk and gawk, function arguments (gawk): Calling Built-in. (line 16) * differences in awk and gawk, getline command: Getline. (line 19) @@ -31961,7 +31962,7 @@ Index (line 260) * differences in awk and gawk, print/printf statements: Format Modifiers. (line 13) -* differences in awk and gawk, PROCINFO array: Auto-set. (line 128) +* differences in awk and gawk, PROCINFO array: Auto-set. (line 136) * differences in awk and gawk, read timeouts: Read Timeout. (line 6) * differences in awk and gawk, record separators: awk split records. (line 124) @@ -31971,7 +31972,7 @@ Index (line 26) * differences in awk and gawk, RS/RT variables: gawk split records. (line 58) -* differences in awk and gawk, RT variable: Auto-set. (line 257) +* differences in awk and gawk, RT variable: Auto-set. (line 265) * differences in awk and gawk, single-character fields: Single Character Fields. (line 6) * differences in awk and gawk, split() function: String Functions. @@ -31979,7 +31980,7 @@ Index * differences in awk and gawk, strings: Scalar Constants. (line 20) * differences in awk and gawk, strings, storing: gawk split records. (line 77) -* differences in awk and gawk, SYMTAB variable: Auto-set. (line 261) +* differences in awk and gawk, SYMTAB variable: Auto-set. (line 269) * differences in awk and gawk, TEXTDOMAIN variable: User-modified. (line 152) * differences in awk and gawk, trunc-mod operation: Arithmetic Ops. @@ -32019,8 +32020,8 @@ Index * dynamically loaded extensions: Dynamic Extensions. (line 6) * e debugger command (alias for enable): Breakpoint Control. (line 73) * EBCDIC: Ordinal Functions. (line 45) -* effective group ID of gawk user: Auto-set. (line 133) -* effective user ID of gawk user: Auto-set. (line 137) +* effective group ID of gawk user: Auto-set. (line 141) +* effective user ID of gawk user: Auto-set. (line 145) * egrep utility <1>: Egrep Program. (line 6) * egrep utility: Bracket Expressions. (line 24) * egrep.awk program: Egrep Program. (line 54) @@ -32076,13 +32077,13 @@ Index (line 11) * EREs (Extended Regular Expressions): Bracket Expressions. (line 24) * ERRNO variable <1>: TCP/IP Networking. (line 54) -* ERRNO variable: Auto-set. (line 74) +* ERRNO variable: Auto-set. (line 82) * ERRNO variable, with BEGINFILE pattern: BEGINFILE/ENDFILE. (line 26) * ERRNO variable, with close() function: Close Files And Pipes. (line 139) * ERRNO variable, with getline command: Getline. (line 19) * error handling: Special FD. (line 16) -* error handling, ERRNO variable and: Auto-set. (line 74) +* error handling, ERRNO variable and: Auto-set. (line 82) * error output: Special FD. (line 6) * escape processing, gsub()/gensub()/sub() functions: Gory Details. (line 6) @@ -32136,7 +32137,7 @@ Index (line 6) * extension API version: Extension Versioning. (line 6) -* extension API, version number: Auto-set. (line 224) +* extension API, version number: Auto-set. (line 232) * extension example: Extension Example. (line 6) * extension registration: Registration Functions. (line 6) @@ -32215,7 +32216,7 @@ Index * file names, distinguishing: Auto-set. (line 56) * file names, in compatibility mode: Special Caveats. (line 9) * file names, standard streams in gawk: Special FD. (line 46) -* FILENAME variable <1>: Auto-set. (line 90) +* FILENAME variable <1>: Auto-set. (line 98) * FILENAME variable: Reading Files. (line 6) * FILENAME variable, getline, setting with: Getline Notes. (line 19) * filenames, assignments as: Ignoring Assigns. (line 6) @@ -32283,9 +32284,9 @@ Index * flush buffered output: I/O Functions. (line 28) * fnmatch() extension function: Extension Sample Fnmatch. (line 12) -* FNR variable <1>: Auto-set. (line 99) +* FNR variable <1>: Auto-set. (line 107) * FNR variable: Records. (line 6) -* FNR variable, changing: Auto-set. (line 301) +* FNR variable, changing: Auto-set. (line 309) * for statement: For Statement. (line 6) * for statement, looping over arrays: Scanning an Array. (line 20) * fork() extension function: Extension Sample Fork. @@ -32322,7 +32323,7 @@ Index * FS variable, --field-separator option and: Options. (line 21) * FS variable, as null string: Single Character Fields. (line 20) -* FS variable, as TAB character: Options. (line 266) +* FS variable, as TAB character: Options. (line 264) * FS variable, changing value of: Field Separators. (line 35) * FS variable, running awk programs and: Cut Program. (line 68) * FS variable, setting from command line: Command Line Field Separator. @@ -32335,7 +32336,7 @@ Index * FSF (Free Software Foundation): Manual History. (line 6) * fts() extension function: Extension Sample File Functions. (line 61) -* FUNCTAB array: Auto-set. (line 115) +* FUNCTAB array: Auto-set. (line 123) * function calls: Function Calls. (line 6) * function calls, indirect: Indirect Calls. (line 6) * function definition example: Function Example. (line 6) @@ -32385,7 +32386,7 @@ Index * G-d: Acknowledgments. (line 82) * Garfinkle, Scott: Contributors. (line 34) * gawk program, dynamic profiling: Profiling. (line 179) -* gawk version: Auto-set. (line 199) +* gawk version: Auto-set. (line 207) * gawk, ARGIND variable in: Other Arguments. (line 12) * gawk, awk and <1>: This Manual. (line 14) * gawk, awk and: Preface. (line 23) @@ -32406,13 +32407,13 @@ Index * gawk, distribution: Distribution contents. (line 6) * gawk, ERRNO variable in <1>: TCP/IP Networking. (line 54) -* gawk, ERRNO variable in <2>: Auto-set. (line 74) +* gawk, ERRNO variable in <2>: Auto-set. (line 82) * gawk, ERRNO variable in <3>: BEGINFILE/ENDFILE. (line 26) * gawk, ERRNO variable in <4>: Close Files And Pipes. (line 139) * gawk, ERRNO variable in: Getline. (line 19) * gawk, escape sequences: Escape Sequences. (line 124) -* gawk, extensions, disabling: Options. (line 254) +* gawk, extensions, disabling: Options. (line 252) * gawk, features, adding: Adding Code. (line 6) * gawk, features, advanced: Advanced Features. (line 6) * gawk, field separators and: User-modified. (line 71) @@ -32423,7 +32424,7 @@ Index * gawk, FPAT variable in <1>: User-modified. (line 43) * gawk, FPAT variable in: Splitting By Content. (line 27) -* gawk, FUNCTAB array in: Auto-set. (line 115) +* gawk, FUNCTAB array in: Auto-set. (line 123) * gawk, function arguments and: Calling Built-in. (line 16) * gawk, hexadecimal numbers and: Nondecimal-numbers. (line 42) * gawk, IGNORECASE variable in <1>: Array Sorting Functions. @@ -32454,7 +32455,7 @@ Index * gawk, OS/2 version of: PC Using. (line 16) * gawk, PROCINFO array in <1>: Two-way I/O. (line 117) * gawk, PROCINFO array in <2>: Time Functions. (line 47) -* gawk, PROCINFO array in: Auto-set. (line 128) +* gawk, PROCINFO array in: Auto-set. (line 136) * gawk, regexp constants and: Using Constant Regexps. (line 28) * gawk, regular expressions, case sensitivity: Case-sensitivity. @@ -32462,18 +32463,18 @@ Index * gawk, regular expressions, operators: GNU Regexp Operators. (line 6) * gawk, regular expressions, precedence: Regexp Operators. (line 162) -* gawk, RT variable in <1>: Auto-set. (line 257) +* gawk, RT variable in <1>: Auto-set. (line 265) * gawk, RT variable in <2>: Multiple Line. (line 129) * gawk, RT variable in: awk split records. (line 124) * gawk, See Also awk: Preface. (line 36) * gawk, source code, obtaining: Getting. (line 6) * gawk, splitting fields and: Constant Size. (line 88) * gawk, string-translation functions: I18N Functions. (line 6) -* gawk, SYMTAB array in: Auto-set. (line 261) +* gawk, SYMTAB array in: Auto-set. (line 269) * gawk, TEXTDOMAIN variable in: User-modified. (line 152) * gawk, timestamps: Time Functions. (line 6) * gawk, uses for: Preface. (line 36) -* gawk, versions of, information about, printing: Options. (line 300) +* gawk, versions of, information about, printing: Options. (line 298) * gawk, VMS version of: VMS Installation. (line 6) * gawk, word-boundary operator: GNU Regexp Operators. (line 63) @@ -32555,7 +32556,7 @@ Index * Grigera, Juan: Contributors. (line 57) * group database, reading: Group Functions. (line 6) * group file: Group Functions. (line 6) -* group ID of gawk user: Auto-set. (line 172) +* group ID of gawk user: Auto-set. (line 180) * groups, information about: Group Functions. (line 6) * gsub <1>: String Functions. (line 139) * gsub: Using Constant Regexps. @@ -32784,7 +32785,7 @@ Index * lint checking, empty programs: Command Line. (line 16) * lint checking, issuing warnings: Options. (line 185) * lint checking, POSIXLY_CORRECT environment variable: Options. - (line 340) + (line 338) * lint checking, undefined functions: Pass By Value/Reference. (line 88) * LINT variable: User-modified. (line 88) @@ -32798,7 +32799,7 @@ Index * loading, extensions: Options. (line 173) * local variables, in a function: Variable Scope. (line 6) * locale categories: Explaining gettext. (line 81) -* locale decimal point character: Options. (line 270) +* locale decimal point character: Options. (line 268) * locale, definition of: Locales. (line 6) * localization: I18N and L10N. (line 6) * localization, See internationalization, localization: I18N and L10N. @@ -32846,7 +32847,7 @@ Index * mawk utility <3>: Concatenation. (line 36) * mawk utility <4>: Getline/Pipe. (line 62) * mawk utility: Escape Sequences. (line 124) -* maximum precision supported by MPFR library: Auto-set. (line 213) +* maximum precision supported by MPFR library: Auto-set. (line 221) * McIlroy, Doug: Glossary. (line 149) * McPhee, Patrick: Contributors. (line 100) * message object files: Explaining gettext. (line 42) @@ -32859,7 +32860,7 @@ Index * messages from extensions: Printing Messages. (line 6) * metacharacters in regular expressions: Regexp Operators. (line 6) * metacharacters, escape sequences for: Escape Sequences. (line 130) -* minimum precision supported by MPFR library: Auto-set. (line 216) +* minimum precision supported by MPFR library: Auto-set. (line 224) * mktime: Time Functions. (line 25) * modifiers, in format specifiers: Format Modifiers. (line 6) * monetary information, localization: Explaining gettext. (line 104) @@ -32882,7 +32883,7 @@ Index * networks, programming: TCP/IP Networking. (line 6) * networks, support for: Special Network. (line 6) * newlines <1>: Boolean Ops. (line 67) -* newlines <2>: Options. (line 260) +* newlines <2>: Options. (line 258) * newlines: Statements/Lines. (line 6) * newlines, as field separators: Default Field Splitting. (line 6) @@ -32911,7 +32912,7 @@ Index (line 47) * nexti debugger command: Debugger Execution Control. (line 49) -* NF variable <1>: Auto-set. (line 104) +* NF variable <1>: Auto-set. (line 112) * NF variable: Fields. (line 33) * NF variable, decrementing: Changing Fields. (line 107) * ni debugger command (alias for nexti): Debugger Execution Control. @@ -32920,9 +32921,9 @@ Index * non-existent array elements: Reference to Elements. (line 23) * not Boolean-logic operator: Boolean Ops. (line 6) -* NR variable <1>: Auto-set. (line 123) +* NR variable <1>: Auto-set. (line 131) * NR variable: Records. (line 6) -* NR variable, changing: Auto-set. (line 301) +* NR variable, changing: Auto-set. (line 309) * null strings <1>: Basic Data Typing. (line 26) * null strings <2>: Truth Values. (line 6) * null strings <3>: Regexp Field Splitting. @@ -33037,7 +33038,7 @@ Index * p debugger command (alias for print): Viewing And Changing Data. (line 36) * Papadopoulos, Panos: Contributors. (line 128) -* parent process ID of gawk process: Auto-set. (line 181) +* parent process ID of gawk process: Auto-set. (line 189) * parentheses (), in a profile: Profiling. (line 146) * parentheses (), regexp operator: Regexp Operators. (line 80) * password file: Passwd Functions. (line 16) @@ -33104,7 +33105,7 @@ Index * portability, NF variable, decrementing: Changing Fields. (line 115) * portability, operators: Increment Ops. (line 60) * portability, operators, not in POSIX awk: Precedence. (line 98) -* portability, POSIXLY_CORRECT environment variable: Options. (line 360) +* portability, POSIXLY_CORRECT environment variable: Options. (line 358) * portability, substr() function: String Functions. (line 510) * portable object files <1>: Translator i18n. (line 6) * portable object files: Explaining gettext. (line 37) @@ -33153,11 +33154,11 @@ Index * POSIX awk, regular expressions and: Regexp Operators. (line 162) * POSIX awk, timestamps and: Time Functions. (line 6) * POSIX awk, | I/O operator and: Getline/Pipe. (line 55) -* POSIX mode: Options. (line 254) +* POSIX mode: Options. (line 252) * POSIX, awk and: Preface. (line 23) * POSIX, gawk extensions not included in: POSIX/GNU. (line 6) * POSIX, programs, implementing in awk: Clones. (line 6) -* POSIXLY_CORRECT environment variable: Options. (line 340) +* POSIXLY_CORRECT environment variable: Options. (line 338) * PREC variable: User-modified. (line 124) * precedence <1>: Precedence. (line 6) * precedence: Increment Ops. (line 60) @@ -33200,24 +33201,24 @@ Index * printing, unduplicated lines of text: Uniq Program. (line 6) * printing, user information: Id Program. (line 6) * private variables: Library Names. (line 11) -* process group idIDof gawk process: Auto-set. (line 175) -* process ID of gawk process: Auto-set. (line 178) +* process group idIDof gawk process: Auto-set. (line 183) +* process ID of gawk process: Auto-set. (line 186) * processes, two-way communications with: Two-way I/O. (line 23) * processing data: Basic High Level. (line 6) * PROCINFO array <1>: Passwd Functions. (line 6) * PROCINFO array <2>: Time Functions. (line 47) -* PROCINFO array: Auto-set. (line 128) +* PROCINFO array: Auto-set. (line 136) * PROCINFO array, and communications via ptys: Two-way I/O. (line 117) * PROCINFO array, and group membership: Group Functions. (line 6) * PROCINFO array, and user and group ID numbers: Id Program. (line 15) * PROCINFO array, testing the field splitting: Passwd Functions. (line 161) -* PROCINFO array, uses: Auto-set. (line 234) +* PROCINFO array, uses: Auto-set. (line 242) * PROCINFO, values of sorted_in: Controlling Scanning. (line 26) * profiling awk programs: Profiling. (line 6) * profiling awk programs, dynamically: Profiling. (line 179) -* program identifiers: Auto-set. (line 146) +* program identifiers: Auto-set. (line 154) * program, definition of: Getting Started. (line 21) * programmers, attractiveness of: Two-way I/O. (line 6) * programming conventions, --non-decimal-data option: Nondecimal Data. @@ -33337,7 +33338,7 @@ Index (line 59) * regular expressions, gawk, command-line options: GNU Regexp Operators. (line 70) -* regular expressions, interval expressions and: Options. (line 279) +* regular expressions, interval expressions and: Options. (line 277) * regular expressions, leftmost longest match: Leftmost Longest. (line 6) * regular expressions, operators <1>: Regexp Operators. (line 6) @@ -33377,7 +33378,7 @@ Index * right shift: Bitwise Functions. (line 52) * right shift, bitwise: Bitwise Functions. (line 32) * Ritchie, Dennis: Basic Data Typing. (line 54) -* RLENGTH variable: Auto-set. (line 244) +* RLENGTH variable: Auto-set. (line 252) * RLENGTH variable, match() function and: String Functions. (line 224) * Robbins, Arnold <1>: Future Extensions. (line 6) * Robbins, Arnold <2>: Bugs. (line 32) @@ -33403,9 +33404,9 @@ Index * RS variable: awk split records. (line 12) * RS variable, multiline records and: Multiple Line. (line 17) * rshift: Bitwise Functions. (line 52) -* RSTART variable: Auto-set. (line 250) +* RSTART variable: Auto-set. (line 258) * RSTART variable, match() function and: String Functions. (line 224) -* RT variable <1>: Auto-set. (line 257) +* RT variable <1>: Auto-set. (line 265) * RT variable <2>: Multiple Line. (line 129) * RT variable: awk split records. (line 124) * Rubin, Paul <1>: Contributors. (line 15) @@ -33418,14 +33419,14 @@ Index (line 68) * sample debugging session: Sample Debugging Session. (line 6) -* sandbox mode: Options. (line 286) +* sandbox mode: Options. (line 284) * save debugger options: Debugger Info. (line 84) * scalar or array: Type Functions. (line 11) * scalar values: Basic Data Typing. (line 13) * scanning arrays: Scanning an Array. (line 6) * scanning multidimensional arrays: Multiscanning. (line 11) * Schorr, Andrew <1>: Contributors. (line 133) -* Schorr, Andrew <2>: Auto-set. (line 284) +* Schorr, Andrew <2>: Auto-set. (line 292) * Schorr, Andrew: Acknowledgments. (line 60) * Schreiber, Bert: Acknowledgments. (line 38) * Schreiber, Rita: Acknowledgments. (line 38) @@ -33510,7 +33511,7 @@ Index (line 110) * sidebar, Changing FS Does Not Affect the Fields: Field Splitting Summary. (line 38) -* sidebar, Changing NR and FNR: Auto-set. (line 299) +* sidebar, Changing NR and FNR: Auto-set. (line 307) * sidebar, Controlling Output Buffering with system(): I/O Functions. (line 138) * sidebar, Escape Sequences for Metacharacters: Escape Sequences. @@ -33673,9 +33674,9 @@ Index * substr: String Functions. (line 479) * substring: String Functions. (line 479) * Sumner, Andrew: Other Versions. (line 64) -* supplementary groups of gawk process: Auto-set. (line 229) +* supplementary groups of gawk process: Auto-set. (line 237) * switch statement: Switch Statement. (line 6) -* SYMTAB array: Auto-set. (line 261) +* SYMTAB array: Auto-set. (line 269) * syntactic ambiguity: /= operator vs. /=.../ regexp constant: Assignment Ops. (line 148) * system: I/O Functions. (line 75) @@ -33853,10 +33854,10 @@ Index * variables, uninitialized, as array subscripts: Uninitialized Subscripts. (line 6) * variables, user-defined: Variables. (line 6) -* version of gawk: Auto-set. (line 199) -* version of gawk extension API: Auto-set. (line 224) -* version of GNU MP library: Auto-set. (line 210) -* version of GNU MPFR library: Auto-set. (line 206) +* version of gawk: Auto-set. (line 207) +* version of gawk extension API: Auto-set. (line 232) +* version of GNU MP library: Auto-set. (line 218) +* version of GNU MPFR library: Auto-set. (line 214) * vertical bar (|): Regexp Operators. (line 70) * vertical bar (|), | operator (I/O) <1>: Precedence. (line 65) * vertical bar (|), | operator (I/O): Getline/Pipe. (line 9) @@ -33890,7 +33891,7 @@ Index * whitespace, as field separators: Default Field Splitting. (line 6) * whitespace, functions, calling: Calling Built-in. (line 10) -* whitespace, newlines as: Options. (line 260) +* whitespace, newlines as: Options. (line 258) * Williams, Kent: Contributors. (line 34) * Woehlke, Matthew: Contributors. (line 79) * Woods, John: Contributors. (line 27) @@ -33984,511 +33985,511 @@ Node: Intro Summary109875 Node: Invoking Gawk110641 Node: Command Line112156 Node: Options112947 -Ref: Options-Footnote-1128776 -Node: Other Arguments128801 -Node: Naming Standard Input131463 -Node: Environment Variables132557 -Node: AWKPATH Variable133115 -Ref: AWKPATH Variable-Footnote-1135987 -Ref: AWKPATH Variable-Footnote-2136032 -Node: AWKLIBPATH Variable136292 -Node: Other Environment Variables137051 -Node: Exit Status140706 -Node: Include Files141381 -Node: Loading Shared Libraries144959 -Node: Obsolete146343 -Node: Undocumented147040 -Node: Invoking Summary147307 -Node: Regexp148887 -Node: Regexp Usage150337 -Node: Escape Sequences152370 -Node: Regexp Operators158037 -Ref: Regexp Operators-Footnote-1165517 -Ref: Regexp Operators-Footnote-2165664 -Node: Bracket Expressions165762 -Ref: table-char-classes167652 -Node: GNU Regexp Operators170175 -Node: Case-sensitivity173898 -Ref: Case-sensitivity-Footnote-1176790 -Ref: Case-sensitivity-Footnote-2177025 -Node: Leftmost Longest177133 -Node: Computed Regexps178334 -Node: Regexp Summary181706 -Node: Reading Files183177 -Node: Records185269 -Node: awk split records186012 -Node: gawk split records190870 -Ref: gawk split records-Footnote-1195391 -Node: Fields195428 -Ref: Fields-Footnote-1198392 -Node: Nonconstant Fields198478 -Ref: Nonconstant Fields-Footnote-1200708 -Node: Changing Fields200910 -Node: Field Separators206864 -Node: Default Field Splitting209566 -Node: Regexp Field Splitting210683 -Node: Single Character Fields214024 -Node: Command Line Field Separator215083 -Node: Full Line Fields218425 -Ref: Full Line Fields-Footnote-1218933 -Node: Field Splitting Summary218979 -Ref: Field Splitting Summary-Footnote-1222078 -Node: Constant Size222179 -Node: Splitting By Content226786 -Ref: Splitting By Content-Footnote-1230536 -Node: Multiple Line230576 -Ref: Multiple Line-Footnote-1236432 -Node: Getline236611 -Node: Plain Getline238827 -Node: Getline/Variable240922 -Node: Getline/File242069 -Node: Getline/Variable/File243453 -Ref: Getline/Variable/File-Footnote-1245052 -Node: Getline/Pipe245139 -Node: Getline/Variable/Pipe247838 -Node: Getline/Coprocess248945 -Node: Getline/Variable/Coprocess250197 -Node: Getline Notes250934 -Node: Getline Summary253738 -Ref: table-getline-variants254146 -Node: Read Timeout255058 -Ref: Read Timeout-Footnote-1258885 -Node: Command line directories258943 -Node: Input Summary259847 -Node: Input Exercises262984 -Node: Printing263717 -Node: Print265439 -Node: Print Examples266780 -Node: Output Separators269559 -Node: OFMT271575 -Node: Printf272933 -Node: Basic Printf273839 -Node: Control Letters275378 -Node: Format Modifiers279230 -Node: Printf Examples285257 -Node: Redirection287721 -Node: Special Files294693 -Node: Special FD295224 -Ref: Special FD-Footnote-1298848 -Node: Special Network298922 -Node: Special Caveats299772 -Node: Close Files And Pipes300568 -Ref: Close Files And Pipes-Footnote-1307729 -Ref: Close Files And Pipes-Footnote-2307877 -Node: Output Summary308027 -Node: Output exercises309024 -Node: Expressions309704 -Node: Values310889 -Node: Constants311565 -Node: Scalar Constants312245 -Ref: Scalar Constants-Footnote-1313104 -Node: Nondecimal-numbers313354 -Node: Regexp Constants316354 -Node: Using Constant Regexps316829 -Node: Variables319899 -Node: Using Variables320554 -Node: Assignment Options322278 -Node: Conversion324153 -Node: Strings And Numbers324677 -Ref: Strings And Numbers-Footnote-1327739 -Node: Locale influences conversions327848 -Ref: table-locale-affects330565 -Node: All Operators331153 -Node: Arithmetic Ops331783 -Node: Concatenation334288 -Ref: Concatenation-Footnote-1337084 -Node: Assignment Ops337204 -Ref: table-assign-ops342187 -Node: Increment Ops343504 -Node: Truth Values and Conditions346942 -Node: Truth Values348025 -Node: Typing and Comparison349074 -Node: Variable Typing349867 -Ref: Variable Typing-Footnote-1353767 -Node: Comparison Operators353889 -Ref: table-relational-ops354299 -Node: POSIX String Comparison357849 -Ref: POSIX String Comparison-Footnote-1358933 -Node: Boolean Ops359071 -Ref: Boolean Ops-Footnote-1363141 -Node: Conditional Exp363232 -Node: Function Calls364959 -Node: Precedence368839 -Node: Locales372508 -Node: Expressions Summary374139 -Node: Patterns and Actions376680 -Node: Pattern Overview377796 -Node: Regexp Patterns379473 -Node: Expression Patterns380016 -Node: Ranges383797 -Node: BEGIN/END386903 -Node: Using BEGIN/END387665 -Ref: Using BEGIN/END-Footnote-1390401 -Node: I/O And BEGIN/END390507 -Node: BEGINFILE/ENDFILE392792 -Node: Empty395723 -Node: Using Shell Variables396040 -Node: Action Overview398323 -Node: Statements400650 -Node: If Statement402498 -Node: While Statement403996 -Node: Do Statement406040 -Node: For Statement407196 -Node: Switch Statement410348 -Node: Break Statement412451 -Node: Continue Statement414506 -Node: Next Statement416299 -Node: Nextfile Statement418689 -Node: Exit Statement421344 -Node: Built-in Variables423748 -Node: User-modified424875 -Ref: User-modified-Footnote-1432564 -Node: Auto-set432626 -Ref: Auto-set-Footnote-1445208 -Ref: Auto-set-Footnote-2445413 -Node: ARGC and ARGV445469 -Node: Pattern Action Summary449323 -Node: Arrays451546 -Node: Array Basics453095 -Node: Array Intro453921 -Ref: figure-array-elements455894 -Node: Reference to Elements458301 -Node: Assigning Elements460574 -Node: Array Example461065 -Node: Scanning an Array462797 -Node: Controlling Scanning465812 -Ref: Controlling Scanning-Footnote-1470985 -Node: Delete471301 -Ref: Delete-Footnote-1474066 -Node: Numeric Array Subscripts474123 -Node: Uninitialized Subscripts476306 -Node: Multidimensional477931 -Node: Multiscanning481024 -Node: Arrays of Arrays482613 -Node: Arrays Summary487276 -Node: Functions489381 -Node: Built-in490254 -Node: Calling Built-in491332 -Node: Numeric Functions493320 -Ref: Numeric Functions-Footnote-1497154 -Ref: Numeric Functions-Footnote-2497511 -Ref: Numeric Functions-Footnote-3497559 -Node: String Functions497828 -Ref: String Functions-Footnote-1520839 -Ref: String Functions-Footnote-2520968 -Ref: String Functions-Footnote-3521216 -Node: Gory Details521303 -Ref: table-sub-escapes522972 -Ref: table-sub-posix-92524326 -Ref: table-sub-proposed525677 -Ref: table-posix-sub527031 -Ref: table-gensub-escapes528576 -Ref: Gory Details-Footnote-1529752 -Ref: Gory Details-Footnote-2529803 -Node: I/O Functions529954 -Ref: I/O Functions-Footnote-1537077 -Node: Time Functions537224 -Ref: Time Functions-Footnote-1547688 -Ref: Time Functions-Footnote-2547756 -Ref: Time Functions-Footnote-3547914 -Ref: Time Functions-Footnote-4548025 -Ref: Time Functions-Footnote-5548137 -Ref: Time Functions-Footnote-6548364 -Node: Bitwise Functions548630 -Ref: table-bitwise-ops549192 -Ref: Bitwise Functions-Footnote-1553437 -Node: Type Functions553621 -Node: I18N Functions554763 -Node: User-defined556408 -Node: Definition Syntax557212 -Ref: Definition Syntax-Footnote-1562391 -Node: Function Example562460 -Ref: Function Example-Footnote-1565104 -Node: Function Caveats565126 -Node: Calling A Function565644 -Node: Variable Scope566599 -Node: Pass By Value/Reference569587 -Node: Return Statement573095 -Node: Dynamic Typing576079 -Node: Indirect Calls577008 -Node: Functions Summary586721 -Node: Library Functions589260 -Ref: Library Functions-Footnote-1592878 -Ref: Library Functions-Footnote-2593021 -Node: Library Names593192 -Ref: Library Names-Footnote-1596665 -Ref: Library Names-Footnote-2596885 -Node: General Functions596971 -Node: Strtonum Function597999 -Node: Assert Function600779 -Node: Round Function604105 -Node: Cliff Random Function605646 -Node: Ordinal Functions606662 -Ref: Ordinal Functions-Footnote-1609739 -Ref: Ordinal Functions-Footnote-2609991 -Node: Join Function610202 -Ref: Join Function-Footnote-1611973 -Node: Getlocaltime Function612173 -Node: Readfile Function615909 -Node: Data File Management617748 -Node: Filetrans Function618380 -Node: Rewind Function622449 -Node: File Checking623836 -Ref: File Checking-Footnote-1624968 -Node: Empty Files625169 -Node: Ignoring Assigns627148 -Node: Getopt Function628702 -Ref: Getopt Function-Footnote-1640005 -Node: Passwd Functions640208 -Ref: Passwd Functions-Footnote-1649187 -Node: Group Functions649275 -Ref: Group Functions-Footnote-1657216 -Node: Walking Arrays657429 -Node: Library Functions Summary659032 -Node: Library exercises660420 -Node: Sample Programs661700 -Node: Running Examples662470 -Node: Clones663198 -Node: Cut Program664422 -Node: Egrep Program674290 -Ref: Egrep Program-Footnote-1682261 -Node: Id Program682371 -Node: Split Program686035 -Ref: Split Program-Footnote-1689573 -Node: Tee Program689701 -Node: Uniq Program692508 -Node: Wc Program699938 -Ref: Wc Program-Footnote-1704203 -Node: Miscellaneous Programs704295 -Node: Dupword Program705508 -Node: Alarm Program707539 -Node: Translate Program712353 -Ref: Translate Program-Footnote-1716744 -Ref: Translate Program-Footnote-2717014 -Node: Labels Program717148 -Ref: Labels Program-Footnote-1720519 -Node: Word Sorting720603 -Node: History Sorting724646 -Node: Extract Program726482 -Node: Simple Sed734018 -Node: Igawk Program737080 -Ref: Igawk Program-Footnote-1751391 -Ref: Igawk Program-Footnote-2751592 -Node: Anagram Program751730 -Node: Signature Program754798 -Node: Programs Summary756045 -Node: Programs Exercises757260 -Node: Advanced Features760911 -Node: Nondecimal Data762859 -Node: Array Sorting764436 -Node: Controlling Array Traversal765133 -Node: Array Sorting Functions773413 -Ref: Array Sorting Functions-Footnote-1777320 -Node: Two-way I/O777514 -Ref: Two-way I/O-Footnote-1783030 -Node: TCP/IP Networking783112 -Node: Profiling785956 -Node: Advanced Features Summary793498 -Node: Internationalization795362 -Node: I18N and L10N796842 -Node: Explaining gettext797528 -Ref: Explaining gettext-Footnote-1802668 -Ref: Explaining gettext-Footnote-2802852 -Node: Programmer i18n803017 -Node: Translator i18n807242 -Node: String Extraction808036 -Ref: String Extraction-Footnote-1808997 -Node: Printf Ordering809083 -Ref: Printf Ordering-Footnote-1811865 -Node: I18N Portability811929 -Ref: I18N Portability-Footnote-1814378 -Node: I18N Example814441 -Ref: I18N Example-Footnote-1817163 -Node: Gawk I18N817235 -Node: I18N Summary817873 -Node: Debugger819212 -Node: Debugging820234 -Node: Debugging Concepts820675 -Node: Debugging Terms822531 -Node: Awk Debugging825128 -Node: Sample Debugging Session826020 -Node: Debugger Invocation826540 -Node: Finding The Bug827873 -Node: List of Debugger Commands834355 -Node: Breakpoint Control835687 -Node: Debugger Execution Control839351 -Node: Viewing And Changing Data842711 -Node: Execution Stack846069 -Node: Debugger Info847582 -Node: Miscellaneous Debugger Commands851576 -Node: Readline Support856760 -Node: Limitations857652 -Node: Debugging Summary859926 -Node: Arbitrary Precision Arithmetic861090 -Node: Computer Arithmetic862419 -Ref: Computer Arithmetic-Footnote-1866806 -Node: Math Definitions866863 -Ref: table-ieee-formats869747 -Node: MPFR features870251 -Node: FP Math Caution871893 -Ref: FP Math Caution-Footnote-1872934 -Node: Inexactness of computations873303 -Node: Inexact representation874251 -Node: Comparing FP Values875606 -Node: Errors accumulate876570 -Node: Getting Accuracy878003 -Node: Try To Round880662 -Node: Setting precision881561 -Ref: table-predefined-precision-strings882243 -Node: Setting the rounding mode884036 -Ref: table-gawk-rounding-modes884400 -Ref: Setting the rounding mode-Footnote-1887854 -Node: Arbitrary Precision Integers888033 -Ref: Arbitrary Precision Integers-Footnote-1891036 -Node: POSIX Floating Point Problems891185 -Ref: POSIX Floating Point Problems-Footnote-1895061 -Node: Floating point summary895099 -Node: Dynamic Extensions897316 -Node: Extension Intro898868 -Node: Plugin License900133 -Node: Extension Mechanism Outline900818 -Ref: figure-load-extension901242 -Ref: figure-load-new-function902727 -Ref: figure-call-new-function903729 -Node: Extension API Description905713 -Node: Extension API Functions Introduction907163 -Node: General Data Types912028 -Ref: General Data Types-Footnote-1917721 -Node: Requesting Values918020 -Ref: table-value-types-returned918757 -Node: Memory Allocation Functions919715 -Ref: Memory Allocation Functions-Footnote-1922462 -Node: Constructor Functions922558 -Node: Registration Functions924316 -Node: Extension Functions925001 -Node: Exit Callback Functions927303 -Node: Extension Version String928552 -Node: Input Parsers929202 -Node: Output Wrappers939005 -Node: Two-way processors943521 -Node: Printing Messages945725 -Ref: Printing Messages-Footnote-1946802 -Node: Updating `ERRNO'946954 -Node: Accessing Parameters947693 -Node: Symbol Table Access948923 -Node: Symbol table by name949437 -Node: Symbol table by cookie951413 -Ref: Symbol table by cookie-Footnote-1955546 -Node: Cached values955609 -Ref: Cached values-Footnote-1959113 -Node: Array Manipulation959204 -Ref: Array Manipulation-Footnote-1960302 -Node: Array Data Types960341 -Ref: Array Data Types-Footnote-1963044 -Node: Array Functions963136 -Node: Flattening Arrays967010 -Node: Creating Arrays973862 -Node: Extension API Variables978593 -Node: Extension Versioning979229 -Node: Extension API Informational Variables981130 -Node: Extension API Boilerplate982216 -Node: Finding Extensions986020 -Node: Extension Example986580 -Node: Internal File Description987310 -Node: Internal File Ops991401 -Ref: Internal File Ops-Footnote-11002833 -Node: Using Internal File Ops1002973 -Ref: Using Internal File Ops-Footnote-11005320 -Node: Extension Samples1005588 -Node: Extension Sample File Functions1007112 -Node: Extension Sample Fnmatch1014680 -Node: Extension Sample Fork1016162 -Node: Extension Sample Inplace1017375 -Node: Extension Sample Ord1019050 -Node: Extension Sample Readdir1019886 -Ref: table-readdir-file-types1020742 -Node: Extension Sample Revout1021541 -Node: Extension Sample Rev2way1022132 -Node: Extension Sample Read write array1022873 -Node: Extension Sample Readfile1024752 -Node: Extension Sample API Tests1025852 -Node: Extension Sample Time1026377 -Node: gawkextlib1027692 -Node: Extension summary1030505 -Node: Extension Exercises1034198 -Node: Language History1034920 -Node: V7/SVR3.11036563 -Node: SVR41038883 -Node: POSIX1040325 -Node: BTL1041711 -Node: POSIX/GNU1042445 -Node: Feature History1048044 -Node: Common Extensions1061174 -Node: Ranges and Locales1062486 -Ref: Ranges and Locales-Footnote-11067103 -Ref: Ranges and Locales-Footnote-21067130 -Ref: Ranges and Locales-Footnote-31067364 -Node: Contributors1067585 -Node: History summary1073010 -Node: Installation1074379 -Node: Gawk Distribution1075330 -Node: Getting1075814 -Node: Extracting1076638 -Node: Distribution contents1078280 -Node: Unix Installation1083997 -Node: Quick Installation1084614 -Node: Additional Configuration Options1087056 -Node: Configuration Philosophy1088794 -Node: Non-Unix Installation1091145 -Node: PC Installation1091603 -Node: PC Binary Installation1092914 -Node: PC Compiling1094762 -Ref: PC Compiling-Footnote-11097761 -Node: PC Testing1097866 -Node: PC Using1099042 -Node: Cygwin1103200 -Node: MSYS1104009 -Node: VMS Installation1104523 -Node: VMS Compilation1105319 -Ref: VMS Compilation-Footnote-11106541 -Node: VMS Dynamic Extensions1106599 -Node: VMS Installation Details1107972 -Node: VMS Running1110224 -Node: VMS GNV1113058 -Node: VMS Old Gawk1113781 -Node: Bugs1114251 -Node: Other Versions1118255 -Node: Installation summary1124510 -Node: Notes1125566 -Node: Compatibility Mode1126431 -Node: Additions1127213 -Node: Accessing The Source1128138 -Node: Adding Code1129574 -Node: New Ports1135752 -Node: Derived Files1140233 -Ref: Derived Files-Footnote-11145314 -Ref: Derived Files-Footnote-21145348 -Ref: Derived Files-Footnote-31145944 -Node: Future Extensions1146058 -Node: Implementation Limitations1146664 -Node: Extension Design1147912 -Node: Old Extension Problems1149066 -Ref: Old Extension Problems-Footnote-11150583 -Node: Extension New Mechanism Goals1150640 -Ref: Extension New Mechanism Goals-Footnote-11154000 -Node: Extension Other Design Decisions1154189 -Node: Extension Future Growth1156295 -Node: Old Extension Mechanism1157131 -Node: Notes summary1158893 -Node: Basic Concepts1160079 -Node: Basic High Level1160760 -Ref: figure-general-flow1161032 -Ref: figure-process-flow1161631 -Ref: Basic High Level-Footnote-11164860 -Node: Basic Data Typing1165045 -Node: Glossary1168373 -Node: Copying1193525 -Node: GNU Free Documentation License1231081 -Node: Index1256217 +Ref: Options-Footnote-1128647 +Node: Other Arguments128672 +Node: Naming Standard Input131334 +Node: Environment Variables132428 +Node: AWKPATH Variable132986 +Ref: AWKPATH Variable-Footnote-1135858 +Ref: AWKPATH Variable-Footnote-2135903 +Node: AWKLIBPATH Variable136163 +Node: Other Environment Variables136922 +Node: Exit Status140372 +Node: Include Files141047 +Node: Loading Shared Libraries144625 +Node: Obsolete146009 +Node: Undocumented146706 +Node: Invoking Summary146973 +Node: Regexp148553 +Node: Regexp Usage150003 +Node: Escape Sequences152036 +Node: Regexp Operators157703 +Ref: Regexp Operators-Footnote-1165183 +Ref: Regexp Operators-Footnote-2165330 +Node: Bracket Expressions165428 +Ref: table-char-classes167318 +Node: GNU Regexp Operators169841 +Node: Case-sensitivity173564 +Ref: Case-sensitivity-Footnote-1176456 +Ref: Case-sensitivity-Footnote-2176691 +Node: Leftmost Longest176799 +Node: Computed Regexps178000 +Node: Regexp Summary181372 +Node: Reading Files182843 +Node: Records184935 +Node: awk split records185678 +Node: gawk split records190536 +Ref: gawk split records-Footnote-1195057 +Node: Fields195094 +Ref: Fields-Footnote-1198058 +Node: Nonconstant Fields198144 +Ref: Nonconstant Fields-Footnote-1200374 +Node: Changing Fields200576 +Node: Field Separators206530 +Node: Default Field Splitting209232 +Node: Regexp Field Splitting210349 +Node: Single Character Fields213690 +Node: Command Line Field Separator214749 +Node: Full Line Fields218091 +Ref: Full Line Fields-Footnote-1218599 +Node: Field Splitting Summary218645 +Ref: Field Splitting Summary-Footnote-1221744 +Node: Constant Size221845 +Node: Splitting By Content226452 +Ref: Splitting By Content-Footnote-1230202 +Node: Multiple Line230242 +Ref: Multiple Line-Footnote-1236098 +Node: Getline236277 +Node: Plain Getline238493 +Node: Getline/Variable240588 +Node: Getline/File241735 +Node: Getline/Variable/File243119 +Ref: Getline/Variable/File-Footnote-1244718 +Node: Getline/Pipe244805 +Node: Getline/Variable/Pipe247504 +Node: Getline/Coprocess248611 +Node: Getline/Variable/Coprocess249863 +Node: Getline Notes250600 +Node: Getline Summary253404 +Ref: table-getline-variants253812 +Node: Read Timeout254724 +Ref: Read Timeout-Footnote-1258551 +Node: Command line directories258609 +Node: Input Summary259513 +Node: Input Exercises262650 +Node: Printing263383 +Node: Print265105 +Node: Print Examples266446 +Node: Output Separators269225 +Node: OFMT271241 +Node: Printf272599 +Node: Basic Printf273505 +Node: Control Letters275044 +Node: Format Modifiers278896 +Node: Printf Examples284923 +Node: Redirection287387 +Node: Special Files294359 +Node: Special FD294890 +Ref: Special FD-Footnote-1298514 +Node: Special Network298588 +Node: Special Caveats299438 +Node: Close Files And Pipes300234 +Ref: Close Files And Pipes-Footnote-1307395 +Ref: Close Files And Pipes-Footnote-2307543 +Node: Output Summary307693 +Node: Output exercises308690 +Node: Expressions309370 +Node: Values310555 +Node: Constants311231 +Node: Scalar Constants311911 +Ref: Scalar Constants-Footnote-1312770 +Node: Nondecimal-numbers313020 +Node: Regexp Constants316020 +Node: Using Constant Regexps316495 +Node: Variables319565 +Node: Using Variables320220 +Node: Assignment Options321944 +Node: Conversion323819 +Node: Strings And Numbers324343 +Ref: Strings And Numbers-Footnote-1327405 +Node: Locale influences conversions327514 +Ref: table-locale-affects330231 +Node: All Operators330819 +Node: Arithmetic Ops331449 +Node: Concatenation333954 +Ref: Concatenation-Footnote-1336750 +Node: Assignment Ops336870 +Ref: table-assign-ops341853 +Node: Increment Ops343170 +Node: Truth Values and Conditions346608 +Node: Truth Values347691 +Node: Typing and Comparison348740 +Node: Variable Typing349533 +Ref: Variable Typing-Footnote-1353433 +Node: Comparison Operators353555 +Ref: table-relational-ops353965 +Node: POSIX String Comparison357515 +Ref: POSIX String Comparison-Footnote-1358599 +Node: Boolean Ops358737 +Ref: Boolean Ops-Footnote-1362807 +Node: Conditional Exp362898 +Node: Function Calls364625 +Node: Precedence368505 +Node: Locales372174 +Node: Expressions Summary373805 +Node: Patterns and Actions376346 +Node: Pattern Overview377462 +Node: Regexp Patterns379139 +Node: Expression Patterns379682 +Node: Ranges383463 +Node: BEGIN/END386569 +Node: Using BEGIN/END387331 +Ref: Using BEGIN/END-Footnote-1390067 +Node: I/O And BEGIN/END390173 +Node: BEGINFILE/ENDFILE392458 +Node: Empty395389 +Node: Using Shell Variables395706 +Node: Action Overview397989 +Node: Statements400316 +Node: If Statement402164 +Node: While Statement403662 +Node: Do Statement405706 +Node: For Statement406862 +Node: Switch Statement410014 +Node: Break Statement412117 +Node: Continue Statement414172 +Node: Next Statement415965 +Node: Nextfile Statement418355 +Node: Exit Statement421010 +Node: Built-in Variables423414 +Node: User-modified424541 +Ref: User-modified-Footnote-1432230 +Node: Auto-set432292 +Ref: Auto-set-Footnote-1445211 +Ref: Auto-set-Footnote-2445416 +Node: ARGC and ARGV445472 +Node: Pattern Action Summary449326 +Node: Arrays451549 +Node: Array Basics453098 +Node: Array Intro453924 +Ref: figure-array-elements455897 +Node: Reference to Elements458304 +Node: Assigning Elements460577 +Node: Array Example461068 +Node: Scanning an Array462800 +Node: Controlling Scanning465815 +Ref: Controlling Scanning-Footnote-1470988 +Node: Delete471304 +Ref: Delete-Footnote-1474069 +Node: Numeric Array Subscripts474126 +Node: Uninitialized Subscripts476309 +Node: Multidimensional477934 +Node: Multiscanning481027 +Node: Arrays of Arrays482616 +Node: Arrays Summary487279 +Node: Functions489384 +Node: Built-in490257 +Node: Calling Built-in491335 +Node: Numeric Functions493323 +Ref: Numeric Functions-Footnote-1497157 +Ref: Numeric Functions-Footnote-2497514 +Ref: Numeric Functions-Footnote-3497562 +Node: String Functions497831 +Ref: String Functions-Footnote-1520842 +Ref: String Functions-Footnote-2520971 +Ref: String Functions-Footnote-3521219 +Node: Gory Details521306 +Ref: table-sub-escapes522975 +Ref: table-sub-posix-92524329 +Ref: table-sub-proposed525680 +Ref: table-posix-sub527034 +Ref: table-gensub-escapes528579 +Ref: Gory Details-Footnote-1529755 +Ref: Gory Details-Footnote-2529806 +Node: I/O Functions529957 +Ref: I/O Functions-Footnote-1537080 +Node: Time Functions537227 +Ref: Time Functions-Footnote-1547691 +Ref: Time Functions-Footnote-2547759 +Ref: Time Functions-Footnote-3547917 +Ref: Time Functions-Footnote-4548028 +Ref: Time Functions-Footnote-5548140 +Ref: Time Functions-Footnote-6548367 +Node: Bitwise Functions548633 +Ref: table-bitwise-ops549195 +Ref: Bitwise Functions-Footnote-1553440 +Node: Type Functions553624 +Node: I18N Functions554766 +Node: User-defined556411 +Node: Definition Syntax557215 +Ref: Definition Syntax-Footnote-1562394 +Node: Function Example562463 +Ref: Function Example-Footnote-1565107 +Node: Function Caveats565129 +Node: Calling A Function565647 +Node: Variable Scope566602 +Node: Pass By Value/Reference569590 +Node: Return Statement573098 +Node: Dynamic Typing576082 +Node: Indirect Calls577011 +Node: Functions Summary586724 +Node: Library Functions589263 +Ref: Library Functions-Footnote-1592881 +Ref: Library Functions-Footnote-2593024 +Node: Library Names593195 +Ref: Library Names-Footnote-1596668 +Ref: Library Names-Footnote-2596888 +Node: General Functions596974 +Node: Strtonum Function598002 +Node: Assert Function600782 +Node: Round Function604108 +Node: Cliff Random Function605649 +Node: Ordinal Functions606665 +Ref: Ordinal Functions-Footnote-1609742 +Ref: Ordinal Functions-Footnote-2609994 +Node: Join Function610205 +Ref: Join Function-Footnote-1611976 +Node: Getlocaltime Function612176 +Node: Readfile Function615912 +Node: Data File Management617751 +Node: Filetrans Function618383 +Node: Rewind Function622452 +Node: File Checking623839 +Ref: File Checking-Footnote-1624971 +Node: Empty Files625172 +Node: Ignoring Assigns627151 +Node: Getopt Function628705 +Ref: Getopt Function-Footnote-1640008 +Node: Passwd Functions640211 +Ref: Passwd Functions-Footnote-1649190 +Node: Group Functions649278 +Ref: Group Functions-Footnote-1657219 +Node: Walking Arrays657432 +Node: Library Functions Summary659035 +Node: Library exercises660423 +Node: Sample Programs661703 +Node: Running Examples662473 +Node: Clones663201 +Node: Cut Program664425 +Node: Egrep Program674293 +Ref: Egrep Program-Footnote-1682264 +Node: Id Program682374 +Node: Split Program686038 +Ref: Split Program-Footnote-1689576 +Node: Tee Program689704 +Node: Uniq Program692511 +Node: Wc Program699941 +Ref: Wc Program-Footnote-1704206 +Node: Miscellaneous Programs704298 +Node: Dupword Program705511 +Node: Alarm Program707542 +Node: Translate Program712356 +Ref: Translate Program-Footnote-1716747 +Ref: Translate Program-Footnote-2717017 +Node: Labels Program717151 +Ref: Labels Program-Footnote-1720522 +Node: Word Sorting720606 +Node: History Sorting724649 +Node: Extract Program726485 +Node: Simple Sed734021 +Node: Igawk Program737083 +Ref: Igawk Program-Footnote-1751394 +Ref: Igawk Program-Footnote-2751595 +Node: Anagram Program751733 +Node: Signature Program754801 +Node: Programs Summary756048 +Node: Programs Exercises757263 +Node: Advanced Features760914 +Node: Nondecimal Data762862 +Node: Array Sorting764439 +Node: Controlling Array Traversal765136 +Node: Array Sorting Functions773416 +Ref: Array Sorting Functions-Footnote-1777323 +Node: Two-way I/O777517 +Ref: Two-way I/O-Footnote-1783033 +Node: TCP/IP Networking783115 +Node: Profiling785959 +Node: Advanced Features Summary793510 +Node: Internationalization795374 +Node: I18N and L10N796854 +Node: Explaining gettext797540 +Ref: Explaining gettext-Footnote-1802680 +Ref: Explaining gettext-Footnote-2802864 +Node: Programmer i18n803029 +Node: Translator i18n807254 +Node: String Extraction808048 +Ref: String Extraction-Footnote-1809009 +Node: Printf Ordering809095 +Ref: Printf Ordering-Footnote-1811877 +Node: I18N Portability811941 +Ref: I18N Portability-Footnote-1814390 +Node: I18N Example814453 +Ref: I18N Example-Footnote-1817175 +Node: Gawk I18N817247 +Node: I18N Summary817885 +Node: Debugger819224 +Node: Debugging820246 +Node: Debugging Concepts820687 +Node: Debugging Terms822543 +Node: Awk Debugging825140 +Node: Sample Debugging Session826032 +Node: Debugger Invocation826552 +Node: Finding The Bug827885 +Node: List of Debugger Commands834367 +Node: Breakpoint Control835699 +Node: Debugger Execution Control839363 +Node: Viewing And Changing Data842723 +Node: Execution Stack846081 +Node: Debugger Info847594 +Node: Miscellaneous Debugger Commands851588 +Node: Readline Support856772 +Node: Limitations857664 +Node: Debugging Summary859938 +Node: Arbitrary Precision Arithmetic861102 +Node: Computer Arithmetic862431 +Ref: Computer Arithmetic-Footnote-1866818 +Node: Math Definitions866875 +Ref: table-ieee-formats869759 +Node: MPFR features870263 +Node: FP Math Caution871905 +Ref: FP Math Caution-Footnote-1872946 +Node: Inexactness of computations873315 +Node: Inexact representation874263 +Node: Comparing FP Values875618 +Node: Errors accumulate876582 +Node: Getting Accuracy878015 +Node: Try To Round880674 +Node: Setting precision881573 +Ref: table-predefined-precision-strings882255 +Node: Setting the rounding mode884048 +Ref: table-gawk-rounding-modes884412 +Ref: Setting the rounding mode-Footnote-1887866 +Node: Arbitrary Precision Integers888045 +Ref: Arbitrary Precision Integers-Footnote-1891048 +Node: POSIX Floating Point Problems891197 +Ref: POSIX Floating Point Problems-Footnote-1895073 +Node: Floating point summary895111 +Node: Dynamic Extensions897328 +Node: Extension Intro898880 +Node: Plugin License900145 +Node: Extension Mechanism Outline900830 +Ref: figure-load-extension901254 +Ref: figure-load-new-function902739 +Ref: figure-call-new-function903741 +Node: Extension API Description905725 +Node: Extension API Functions Introduction907175 +Node: General Data Types912040 +Ref: General Data Types-Footnote-1917733 +Node: Requesting Values918032 +Ref: table-value-types-returned918769 +Node: Memory Allocation Functions919727 +Ref: Memory Allocation Functions-Footnote-1922474 +Node: Constructor Functions922570 +Node: Registration Functions924328 +Node: Extension Functions925013 +Node: Exit Callback Functions927315 +Node: Extension Version String928564 +Node: Input Parsers929214 +Node: Output Wrappers939017 +Node: Two-way processors943533 +Node: Printing Messages945737 +Ref: Printing Messages-Footnote-1946814 +Node: Updating `ERRNO'946966 +Node: Accessing Parameters947705 +Node: Symbol Table Access948935 +Node: Symbol table by name949449 +Node: Symbol table by cookie951425 +Ref: Symbol table by cookie-Footnote-1955558 +Node: Cached values955621 +Ref: Cached values-Footnote-1959125 +Node: Array Manipulation959216 +Ref: Array Manipulation-Footnote-1960314 +Node: Array Data Types960353 +Ref: Array Data Types-Footnote-1963056 +Node: Array Functions963148 +Node: Flattening Arrays967022 +Node: Creating Arrays973874 +Node: Extension API Variables978605 +Node: Extension Versioning979241 +Node: Extension API Informational Variables981142 +Node: Extension API Boilerplate982228 +Node: Finding Extensions986032 +Node: Extension Example986592 +Node: Internal File Description987322 +Node: Internal File Ops991413 +Ref: Internal File Ops-Footnote-11002845 +Node: Using Internal File Ops1002985 +Ref: Using Internal File Ops-Footnote-11005332 +Node: Extension Samples1005600 +Node: Extension Sample File Functions1007124 +Node: Extension Sample Fnmatch1014692 +Node: Extension Sample Fork1016174 +Node: Extension Sample Inplace1017387 +Node: Extension Sample Ord1019062 +Node: Extension Sample Readdir1019898 +Ref: table-readdir-file-types1020754 +Node: Extension Sample Revout1021553 +Node: Extension Sample Rev2way1022144 +Node: Extension Sample Read write array1022885 +Node: Extension Sample Readfile1024764 +Node: Extension Sample API Tests1025864 +Node: Extension Sample Time1026389 +Node: gawkextlib1027704 +Node: Extension summary1030517 +Node: Extension Exercises1034210 +Node: Language History1034932 +Node: V7/SVR3.11036575 +Node: SVR41038895 +Node: POSIX1040337 +Node: BTL1041723 +Node: POSIX/GNU1042457 +Node: Feature History1048056 +Node: Common Extensions1061186 +Node: Ranges and Locales1062498 +Ref: Ranges and Locales-Footnote-11067115 +Ref: Ranges and Locales-Footnote-21067142 +Ref: Ranges and Locales-Footnote-31067376 +Node: Contributors1067597 +Node: History summary1073022 +Node: Installation1074391 +Node: Gawk Distribution1075342 +Node: Getting1075826 +Node: Extracting1076650 +Node: Distribution contents1078292 +Node: Unix Installation1084009 +Node: Quick Installation1084626 +Node: Additional Configuration Options1087068 +Node: Configuration Philosophy1088806 +Node: Non-Unix Installation1091157 +Node: PC Installation1091615 +Node: PC Binary Installation1092926 +Node: PC Compiling1094774 +Ref: PC Compiling-Footnote-11097773 +Node: PC Testing1097878 +Node: PC Using1099054 +Node: Cygwin1103212 +Node: MSYS1104021 +Node: VMS Installation1104535 +Node: VMS Compilation1105331 +Ref: VMS Compilation-Footnote-11106553 +Node: VMS Dynamic Extensions1106611 +Node: VMS Installation Details1107984 +Node: VMS Running1110236 +Node: VMS GNV1113070 +Node: VMS Old Gawk1113793 +Node: Bugs1114263 +Node: Other Versions1118267 +Node: Installation summary1124522 +Node: Notes1125578 +Node: Compatibility Mode1126443 +Node: Additions1127225 +Node: Accessing The Source1128150 +Node: Adding Code1129586 +Node: New Ports1135764 +Node: Derived Files1140245 +Ref: Derived Files-Footnote-11145326 +Ref: Derived Files-Footnote-21145360 +Ref: Derived Files-Footnote-31145956 +Node: Future Extensions1146070 +Node: Implementation Limitations1146676 +Node: Extension Design1147924 +Node: Old Extension Problems1149078 +Ref: Old Extension Problems-Footnote-11150595 +Node: Extension New Mechanism Goals1150652 +Ref: Extension New Mechanism Goals-Footnote-11154012 +Node: Extension Other Design Decisions1154201 +Node: Extension Future Growth1156307 +Node: Old Extension Mechanism1157143 +Node: Notes summary1158905 +Node: Basic Concepts1160091 +Node: Basic High Level1160772 +Ref: figure-general-flow1161044 +Ref: figure-process-flow1161643 +Ref: Basic High Level-Footnote-11164872 +Node: Basic Data Typing1165057 +Node: Glossary1168385 +Node: Copying1193537 +Node: GNU Free Documentation License1231093 +Node: Index1256229 End Tag Table diff --git a/doc/gawk.texi b/doc/gawk.texi index 08fca873..15c4fb97 100644 --- a/doc/gawk.texi +++ b/doc/gawk.texi @@ -3858,10 +3858,8 @@ No space is allowed between the @option{-o} and @var{file}, if @var{file} is supplied. @quotation NOTE -Due to the way @command{gawk} has evolved, with this option -your program is still executed. This will change in the -next major release such that @command{gawk} will only -pretty-print the program and not run it. +In the past, this option would also execute your program. +This is no longer the case. @end quotation @item @option{-O} @@ -4347,11 +4345,6 @@ two regexp matchers that @command{gawk} uses internally. (There aren't supposed to be differences, but occasionally theory and practice don't coordinate with each other.) -@item GAWK_NO_PP_RUN -If this variable exists, then when invoked with the @option{--pretty-print} -option, @command{gawk} skips running the program. This variable will -not survive into the next major release. - @item GAWK_STACKSIZE This specifies the amount by which @command{gawk} should grow its internal evaluation stack, when needed. @@ -14513,10 +14506,18 @@ next file is opened. An associative array containing the values of the environment. The array indices are the environment variable names; the elements are the values of the particular environment variables. For example, -@code{ENVIRON["HOME"]} might be @code{"/home/arnold"}. Changing this array -does not affect the environment passed on to any programs that -@command{awk} may spawn via redirection or the @code{system()} function. -(In a future version of @command{gawk}, it may do so.) +@code{ENVIRON["HOME"]} might be @code{/home/arnold}. + +For POSIX @command{awk}, changing this array does not affect the +environment passed on to any programs that @command{awk} may spawn via +redirection or the @code{system()} function. + +However, beginning with version 4.2, if not in POSIX +compatibility mode, @command{gawk} does update its own environment when +@code{ENVIRON} is changed, thus changing the environment seen by programs +that it creates. You should therefore be especially careful if you +modify @code{ENVIRON["PATH"]"}, which is the search path for finding +executable programs. Some operating systems may not have environment variables. On such systems, the @code{ENVIRON} array is empty (except for @@ -27511,8 +27512,8 @@ When called this way, @command{gawk} ``pretty prints'' the program into @file{awkprof.out}, without any execution counts. @quotation NOTE -The @option{--pretty-print} option still runs your program. -This will change in the next major release. +Once upon a time, the @option{--pretty-print} option would also run +your program. This is is no longer the case. @end quotation @c ENDOFRANGE awkp @c ENDOFRANGE proawk @@ -37695,9 +37696,10 @@ mail at the Internet address noted previously. If you find bugs in one of the non-Unix ports of @command{gawk}, please send an electronic mail message to the person who maintains that port. They -are named in the following list, as well as in the @file{README} file in the @command{gawk} -distribution. Information in the @file{README} file should be considered -authoritative if it conflicts with this @value{DOCUMENT}. +are named in the following list, as well as in the @file{README} file +in the @command{gawk} distribution. Information in the @file{README} +file should be considered authoritative if it conflicts with this +@value{DOCUMENT}. The people maintaining the non-Unix ports of @command{gawk} are as follows: @@ -37725,7 +37727,8 @@ John Malmberg, @EMAIL{wb8tyw@@qsl.net,wb8tyw at qsl.net}. @end multitable If your bug is also reproducible under Unix, please send a copy of your -report to the @EMAIL{bug-gawk@@gnu.org,bug-gawk at gnu dot org} email list as well. +report to the @EMAIL{bug-gawk@@gnu.org,bug-gawk at gnu dot org} email +list as well. @c ENDOFRANGE dbugg @c ENDOFRANGE tblgawb diff --git a/doc/gawktexi.in b/doc/gawktexi.in index e1c157b4..339865ce 100644 --- a/doc/gawktexi.in +++ b/doc/gawktexi.in @@ -3786,10 +3786,8 @@ No space is allowed between the @option{-o} and @var{file}, if @var{file} is supplied. @quotation NOTE -Due to the way @command{gawk} has evolved, with this option -your program is still executed. This will change in the -next major release such that @command{gawk} will only -pretty-print the program and not run it. +In the past, this option would also execute your program. +This is no longer the case. @end quotation @item @option{-O} @@ -4275,11 +4273,6 @@ two regexp matchers that @command{gawk} uses internally. (There aren't supposed to be differences, but occasionally theory and practice don't coordinate with each other.) -@item GAWK_NO_PP_RUN -If this variable exists, then when invoked with the @option{--pretty-print} -option, @command{gawk} skips running the program. This variable will -not survive into the next major release. - @item GAWK_STACKSIZE This specifies the amount by which @command{gawk} should grow its internal evaluation stack, when needed. @@ -13864,10 +13857,18 @@ next file is opened. An associative array containing the values of the environment. The array indices are the environment variable names; the elements are the values of the particular environment variables. For example, -@code{ENVIRON["HOME"]} might be @code{"/home/arnold"}. Changing this array -does not affect the environment passed on to any programs that -@command{awk} may spawn via redirection or the @code{system()} function. -(In a future version of @command{gawk}, it may do so.) +@code{ENVIRON["HOME"]} might be @code{/home/arnold}. + +For POSIX @command{awk}, changing this array does not affect the +environment passed on to any programs that @command{awk} may spawn via +redirection or the @code{system()} function. + +However, beginning with version 4.2, if not in POSIX +compatibility mode, @command{gawk} does update its own environment when +@code{ENVIRON} is changed, thus changing the environment seen by programs +that it creates. You should therefore be especially careful if you +modify @code{ENVIRON["PATH"]"}, which is the search path for finding +executable programs. Some operating systems may not have environment variables. On such systems, the @code{ENVIRON} array is empty (except for @@ -26626,8 +26627,8 @@ When called this way, @command{gawk} ``pretty prints'' the program into @file{awkprof.out}, without any execution counts. @quotation NOTE -The @option{--pretty-print} option still runs your program. -This will change in the next major release. +Once upon a time, the @option{--pretty-print} option would also run +your program. This is is no longer the case. @end quotation @c ENDOFRANGE awkp @c ENDOFRANGE proawk @@ -36810,9 +36811,10 @@ mail at the Internet address noted previously. If you find bugs in one of the non-Unix ports of @command{gawk}, please send an electronic mail message to the person who maintains that port. They -are named in the following list, as well as in the @file{README} file in the @command{gawk} -distribution. Information in the @file{README} file should be considered -authoritative if it conflicts with this @value{DOCUMENT}. +are named in the following list, as well as in the @file{README} file +in the @command{gawk} distribution. Information in the @file{README} +file should be considered authoritative if it conflicts with this +@value{DOCUMENT}. The people maintaining the non-Unix ports of @command{gawk} are as follows: @@ -36840,7 +36842,8 @@ John Malmberg, @EMAIL{wb8tyw@@qsl.net,wb8tyw at qsl.net}. @end multitable If your bug is also reproducible under Unix, please send a copy of your -report to the @EMAIL{bug-gawk@@gnu.org,bug-gawk at gnu dot org} email list as well. +report to the @EMAIL{bug-gawk@@gnu.org,bug-gawk at gnu dot org} email +list as well. @c ENDOFRANGE dbugg @c ENDOFRANGE tblgawb @@ -739,9 +739,8 @@ out: if (do_debug) debug_prog(code_block); - else if (do_pretty_print && ! do_debug && getenv("GAWK_NO_PP_RUN") != NULL) - /* hack to run pretty printer only. need a better solution */ - ; + else if (do_pretty_print && ! do_profile) + ; /* run pretty printer only. */ else interpret(code_block); @@ -1120,6 +1119,10 @@ load_environ() */ path_environ("AWKPATH", defpath); path_environ("AWKLIBPATH", deflibpath); + + /* set up array functions */ + init_env_array(ENVIRON_node); + return ENVIRON_node; } diff --git a/pc/config.h b/pc/config.h index 85389eb2..c5d78a96 100644 --- a/pc/config.h +++ b/pc/config.h @@ -423,7 +423,7 @@ #define PACKAGE_NAME "GNU Awk" /* Define to the full name and version of this package. */ -#define PACKAGE_STRING "GNU Awk 4.1.1a" +#define PACKAGE_STRING "GNU Awk 4.1.60" /* Define to the one symbol short name of this package. */ #define PACKAGE_TARNAME "gawk" @@ -432,7 +432,7 @@ #define PACKAGE_URL "http://www.gnu.org/software/gawk/" /* Define to the version of this package. */ -#define PACKAGE_VERSION "4.1.1a" +#define PACKAGE_VERSION "4.1.60" /* Define to 1 if *printf supports %F format */ #undef PRINTF_HAS_F_FORMAT @@ -494,7 +494,7 @@ /* Version number of package */ -#define VERSION "4.1.1a" +#define VERSION "4.1.60" /* Enable large inode numbers on Mac OS X 10.5. */ #ifndef _DARWIN_USE_64_BIT_INODE diff --git a/str_array.c b/str_array.c index aa82d71b..33c9ddcc 100644 --- a/str_array.c +++ b/str_array.c @@ -69,6 +69,25 @@ afunc_t str_array_func[] = { (afunc_t) 0, }; +static NODE **env_remove(NODE *symbol, NODE *subs); +static NODE **env_store(NODE *symbol, NODE *subs); +static NODE **env_clear(NODE *symbol, NODE *subs); + +/* special case for ENVIRON */ +afunc_t env_array_func[] = { + str_array_init, + (afunc_t) 0, + null_length, + str_lookup, + str_exists, + env_clear, + env_remove, + str_list, + str_copy, + str_dump, + env_store, +}; + static inline NODE **str_find(NODE *symbol, NODE *s1, size_t code1, unsigned long hash1); static void grow_table(NODE *symbol); @@ -737,3 +756,63 @@ scramble(unsigned long x) return x; } + +/* env_remove --- for ENVIRON, remove value from real environment */ + +static NODE ** +env_remove(NODE *symbol, NODE *subs) +{ + NODE **val = str_remove(symbol, subs); + + if (val != NULL) + (void) unsetenv(subs->stptr); + + return val; +} + +/* env_clear --- clear out the environment when ENVIRON is deleted */ + +static NODE ** +env_clear(NODE *symbol, NODE *subs) +{ + extern char **environ; + NODE **val = str_clear(symbol, subs); + + environ = NULL; /* ZAP! */ + + /* str_clear zaps the vtable, reset it */ + symbol->array_funcs = env_array_func; + + return val; +} + +/* env_store --- post assign function for ENVIRON, put new value into env */ + +static NODE ** +env_store(NODE *symbol, NODE *subs) +{ + NODE **val = str_exists(symbol, subs); + const char *newval; + + assert(val != NULL); + + newval = (*val)->stptr; + if (newval == NULL) + newval = ""; + + (void) setenv(subs->stptr, newval, 1); + + return val; +} + +/* init_env_array --- set up the pointers for ENVIRON. A bit hacky. */ + +void +init_env_array(NODE *env_node) +{ + /* If POSIX simply don't reset the vtable and things work as before */ + if (do_posix) + return; + + env_node->array_funcs = env_array_func; +} diff --git a/test/ChangeLog b/test/ChangeLog index 5674ec67..cb330593 100644 --- a/test/ChangeLog +++ b/test/ChangeLog @@ -1,3 +1,8 @@ +2014-06-24 Arnold D. Robbins <arnold@skeeve.com> + + * Makefile.am (profile1, profile4, profile5): Adjust for change to + --pretty-print option. + 2014-06-19 Michael Forney <forney@google.com> * Makefile.am (poundbang): Fix relative path of AWKPROG. @@ -214,6 +219,12 @@ * Makefile.am (badassign1): New test. * badassign1.awk, badassign1.ok: New files. +2013-09-25 Arnold D. Robbins <arnold@skeeve.com> + + * Makfile.am (randtest): New test. + * randtest.sh, randtest.ok: New files. + * rand.ok: Updated to reflect new results based on code change. + 2013-09-13 Arnold D. Robbins <arnold@skeeve.com> * Makefile.am: Fix quoting for generation of Maketests file so diff --git a/test/Makefile.am b/test/Makefile.am index 904553b8..05c88501 100644 --- a/test/Makefile.am +++ b/test/Makefile.am @@ -705,6 +705,8 @@ EXTRA_DIST = \ rand-mpfr.ok \ rand.awk \ rand.ok \ + randtest.sh \ + randtest.ok \ range1.awk \ range1.in \ range1.ok \ @@ -979,7 +981,7 @@ BASIC_TESTS = \ paramdup paramres paramtyp paramuninitglobal parse1 parsefld parseme \ pcntplus posix2008sub prdupval prec printf0 printf1 prmarscl prmreuse \ prt1eval prtoeval \ - rand range1 rebt8b1 redfilnm regeq regexprange regrange reindops \ + rand randtest range1 rebt8b1 redfilnm regeq regexprange regrange reindops \ reparse resplit rri1 rs rsnul1nl rsnulbig rsnulbig2 rstest1 rstest2 \ rstest3 rstest4 rstest5 rswhite \ scalar sclforin sclifin sortempty splitargv splitarr splitdef \ @@ -1657,10 +1659,11 @@ dumpvars:: profile1: @echo $@ - @$(AWK) --pretty-print=ap-$@.out -f "$(srcdir)"/xref.awk "$(srcdir)"/dtdgport.awk > _$@.out1 + @$(AWK) -f "$(srcdir)"/xref.awk "$(srcdir)"/dtdgport.awk > _$@.out1 + @$(AWK) --pretty-print=ap-$@.out -f "$(srcdir)"/xref.awk @$(AWK) -f ap-$@.out "$(srcdir)"/dtdgport.awk > _$@.out2 ; rm ap-$@.out @$(CMP) _$@.out1 _$@.out2 && rm _$@.out[12] || { echo EXIT CODE: $$? >>_$@ ; \ - cp "$(srcdir)"/dtdgport.awk > $@.ok ; } + cp "$(srcdir)"/dtdgport.awk $@.ok ; } profile2: @@ -1677,13 +1680,13 @@ profile3: profile4: @echo $@ - @GAWK_NO_PP_RUN=1 $(AWK) --profile=ap-$@.out -f "$(srcdir)"/$@.awk > /dev/null + @$(AWK) --pretty-print=ap-$@.out -f "$(srcdir)"/$@.awk > /dev/null @sed 1,2d < ap-$@.out > _$@; rm ap-$@.out @-$(CMP) "$(srcdir)"/$@.ok _$@ && rm -f _$@ profile5: @echo $@ - @GAWK_NO_PP_RUN=1 $(AWK) --profile=ap-$@.out -f "$(srcdir)"/$@.awk > /dev/null + @$(AWK) --pretty-print=ap-$@.out -f "$(srcdir)"/$@.awk > /dev/null @sed 1,2d < ap-$@.out > _$@; rm ap-$@.out @-$(CMP) "$(srcdir)"/$@.ok _$@ && rm -f _$@ @@ -1916,6 +1919,12 @@ dfamb1: AWKPATH="$(srcdir)" $(AWK) -f $@.awk "$(srcdir)"/$@.in >_$@ 2>&1 || echo EXIT CODE: $$? >>_$@ @-$(CMP) "$(srcdir)"/$@.ok _$@ && rm -f _$@ + +randtest:: + @echo $@ + @GAWK="$(AWKPROG)" "$(srcdir)"/randtest.sh >_$@ + @-$(CMP) "$(srcdir)"/$@.ok _$@ && rm -f _$@ + backbigs1: @echo $@ @[ -z "$$GAWKLOCALE" ] && GAWKLOCALE=en_US.UTF-8; \ diff --git a/test/Makefile.in b/test/Makefile.in index 15c95345..70e7981b 100644 --- a/test/Makefile.in +++ b/test/Makefile.in @@ -951,6 +951,8 @@ EXTRA_DIST = \ rand-mpfr.ok \ rand.awk \ rand.ok \ + randtest.sh \ + randtest.ok \ range1.awk \ range1.in \ range1.ok \ @@ -1224,7 +1226,7 @@ BASIC_TESTS = \ paramdup paramres paramtyp paramuninitglobal parse1 parsefld parseme \ pcntplus posix2008sub prdupval prec printf0 printf1 prmarscl prmreuse \ prt1eval prtoeval \ - rand range1 rebt8b1 redfilnm regeq regexprange regrange reindops \ + rand randtest range1 rebt8b1 redfilnm regeq regexprange regrange reindops \ reparse resplit rri1 rs rsnul1nl rsnulbig rsnulbig2 rstest1 rstest2 \ rstest3 rstest4 rstest5 rswhite \ scalar sclforin sclifin sortempty splitargv splitarr splitdef \ @@ -2082,10 +2084,11 @@ dumpvars:: profile1: @echo $@ - @$(AWK) --pretty-print=ap-$@.out -f "$(srcdir)"/xref.awk "$(srcdir)"/dtdgport.awk > _$@.out1 + @$(AWK) -f "$(srcdir)"/xref.awk "$(srcdir)"/dtdgport.awk > _$@.out1 + @$(AWK) --pretty-print=ap-$@.out -f "$(srcdir)"/xref.awk @$(AWK) -f ap-$@.out "$(srcdir)"/dtdgport.awk > _$@.out2 ; rm ap-$@.out @$(CMP) _$@.out1 _$@.out2 && rm _$@.out[12] || { echo EXIT CODE: $$? >>_$@ ; \ - cp "$(srcdir)"/dtdgport.awk > $@.ok ; } + cp "$(srcdir)"/dtdgport.awk $@.ok ; } profile2: @echo $@ @@ -2101,13 +2104,13 @@ profile3: profile4: @echo $@ - @GAWK_NO_PP_RUN=1 $(AWK) --profile=ap-$@.out -f "$(srcdir)"/$@.awk > /dev/null + @$(AWK) --pretty-print=ap-$@.out -f "$(srcdir)"/$@.awk > /dev/null @sed 1,2d < ap-$@.out > _$@; rm ap-$@.out @-$(CMP) "$(srcdir)"/$@.ok _$@ && rm -f _$@ profile5: @echo $@ - @GAWK_NO_PP_RUN=1 $(AWK) --profile=ap-$@.out -f "$(srcdir)"/$@.awk > /dev/null + @$(AWK) --pretty-print=ap-$@.out -f "$(srcdir)"/$@.awk > /dev/null @sed 1,2d < ap-$@.out > _$@; rm ap-$@.out @-$(CMP) "$(srcdir)"/$@.ok _$@ && rm -f _$@ @@ -2340,6 +2343,11 @@ dfamb1: AWKPATH="$(srcdir)" $(AWK) -f $@.awk "$(srcdir)"/$@.in >_$@ 2>&1 || echo EXIT CODE: $$? >>_$@ @-$(CMP) "$(srcdir)"/$@.ok _$@ && rm -f _$@ +randtest:: + @echo $@ + @GAWK="$(AWKPROG)" "$(srcdir)"/randtest.sh >_$@ + @-$(CMP) "$(srcdir)"/$@.ok _$@ && rm -f _$@ + backbigs1: @echo $@ @[ -z "$$GAWKLOCALE" ] && GAWKLOCALE=en_US.UTF-8; \ diff --git a/test/rand.ok b/test/rand.ok index 60432b95..1df4ba39 100644 --- a/test/rand.ok +++ b/test/rand.ok @@ -1 +1 @@ - 62 67 88 6 35 77 3 68 30 96 90 26 35 8 88 93 49 53 37 + 67 6 77 68 96 26 8 93 53 74 53 95 78 74 96 77 33 58 91 diff --git a/test/randtest.ok b/test/randtest.ok new file mode 100644 index 00000000..e69de29b --- /dev/null +++ b/test/randtest.ok diff --git a/test/randtest.sh b/test/randtest.sh new file mode 100755 index 00000000..b17fda73 --- /dev/null +++ b/test/randtest.sh @@ -0,0 +1,113 @@ +# THIS PURPOSELY DOES NOT HAVE A !# LINE !!!! +# +# Date: Mon, 9 Sep 2013 14:49:43 -0700 +# From: Bob Jewett <jewett@bill.scs.agilent.com> +# Message-Id: <201309092149.r89Lnh94010909@bill.scs.agilent.com> +# To: arnold@skeeve.com +# Subject: Re: [bug-gawk] Bug in random() in builtin.c +# +# Hi Arnold, +# +# Attached below is a script that tests gawk for this particular +# rand() problem. The pair-wise combinations show a strong +# autocorrelation for a delay of 31 pairs of rand() samples. +# +# The script prints out the measured autocorrelation for a record +# of NSAMPLES pairs. It also prints a fail message at the end if +# it fails. +# +# If you want to see the autocorrelation values, there is a print +# statement that if uncommented will save them to a file. +# +# Please let me know if the mailer screws up the transfer or +# if you have any questions about the test. +# +# Best regards, +# Bob +# +# -------------- test_pair_power_autocorrelation ----------------------- +# +#!/bin/ksh + +#GAWK=/bin/gawk + +# ADR: Get GAWK from the environment. +# Additional note: This wants ksh/bash for the use of $RANDOM below to +# seed the generator. However, shells that don't provide it won't be +# a problem since gawk will then seed the generator with the time of day, +# as srand() will be called without an argument. + +# large NSAMPLES and NRUNS will bring any correlation out of the noise better +NSAMPLES=1024; MAX_ALLOWED_SIGMA=5; NRUNS=50; + +$GAWK 'BEGIN{ + srand('$RANDOM'); + nsamples=('$NSAMPLES'); + max_allowed_sigma=('$MAX_ALLOWED_SIGMA'); + nruns=('$NRUNS'); + for(tau=0;tau<nsamples/2;tau++) corr[tau]=0; + + for(run=0;run<nruns;run++) { + sum=0; + + # Fill an array with a sequence of samples that are a + # function of pairs of rand() values. + + for(i=0;i<nsamples;i++) { + samp[i]=((rand()-0.5)*(rand()-0.5))^2; + sum=sum+samp[i]; + } + + # Subtract off the mean of the sequence: + + mean=sum/nsamples; + for(i=0;i<nsamples;i++) samp[i]=samp[i]-mean; + + # Calculate an autocorrelation function on the sequence. + # Because the values of rand() should be independent, there + # should be no peaks in the autocorrelation. + + for(tau=0;tau<nsamples/2;tau++) { + sum=0; + for(i=0;i<nsamples/2;i++) sum=sum+samp[i]*samp[i+tau]; + corr[tau]=corr[tau]+sum; + } + + } + # Normalize the autocorrelation to the tau=0 value. + + max_corr=corr[0]; + for(tau=0;tau<nsamples/2;tau++) corr[tau]=corr[tau]/max_corr; + + # OPTIONALLY Print out the autocorrelation values: + + # for(tau=0;tau<nsamples/2;tau++) print tau, corr[tau] > "pairpower_corr.data"; + + # Calculate the sigma for the non-zero tau values: + + power_sum=0; + + for(tau=1;tau<nsamples/2;tau++) power_sum=power_sum+(corr[tau])^2; + + sigma=sqrt(power_sum/(nsamples/2-1)); + + # See if any of the correlations exceed a reasonable number of sigma: + + passed=1; + for(tau=1;tau<nsamples/2;tau++) { + if ( abs(corr[tau])/sigma > max_allowed_sigma ) { + print "Tau=", tau ", Autocorr=", corr[tau]/sigma, "sigma"; + passed=0; + } + } + if(!passed) { + print "Test failed." + exit(1); + } + else exit (0); + } + +function abs(abs_input) { return(sqrt(abs_input^2)) ; } +' + +exit 0 |