diff options
Diffstat (limited to 'TODO')
| -rw-r--r-- | TODO | 240 |
1 files changed, 207 insertions, 33 deletions
@@ -1,23 +1,163 @@ -Add debugger commands to reference card -Review all FIXME and TODO comments +Sat Nov 24 20:09:56 IST 2012 +============================ -FIX regular field splitting to use FPAT algorithm. +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. -Look at function order within files. +Upon creation of a release (major or patch release), items from the +previous release should be removed. -regex.h - remove underscores in param names (for 4.1) +TODO +==== -Really make failure to open a socket a non-fatal error (for 4.1). +Minor Cleanups and Code Improvements +------------------------------------ + Fix all *assoc_lookup() = xxx calls. -?? Scope IDs for IPv6 addresses ?? + Make GAWKDEBUG pass the test suite. ------- + API: + DONE: awk_true and awk_false + DONE: Update doc to use gcc -o filefuncs.so -shared filefuncs.o + instead of ld ... + Have check for name not rely on isalpha, isalnum since the locale could botch that up. + ??? #if !defined(GAWK) && !defined(GAWK_OMIT_CONVENIENCE_MACROS) -Code Review: + DONE: Make fflush() and fflush("") both flush all files, as in BWK awk. + + ?? Add debugger commands to reference card + + FIX regular field splitting to use FPAT algorithm. + + Look at function order within files. + + regex.h - remove underscores in param names + + From Andy: Review the following test cases that they work with + make diffout. These look suspicious: mmap8k, fmtspcl (the mpfr + case), clobber, getlnbuf, rtlenmb, profile1, rand (mpfr case). + + Add tests for patches in emails (?? - not sure now what this + referred to) + + DONE: In gawkapi.c - review switch statements and use of default. + + Consider removing use of and/or need for the protos.h file. + + Consider moving var_value info into Node_var itself + to reduce memory usage. + + Add macros for working with flags instead of using & and | directly. + + Review the bash source script for working with shared libraries in + order to nuke the use of libtool. + +Minor New Features +------------------ + + 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. + + ? 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 + + Integration of array_iface branch. + + 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 be done as an extension? + + ?? Use a new or improved dfa and/or regex library. + +Things To Think About That May Never Happen +------------------------------------------- + ?? Scope IDs for IPv6 addresses ?? + + ??? Gnulib + + 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: http://www.diehard-software.org, + https://github.com/emeryberger/DieHard + + Change from dlopen to using the libltdl library (i.e. lt_dlopen). + This may support more platforms. + + 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. + + Patch lexer for @include and @load to make quotes optional. + + Do an optimization pass over parse tree? + + Consider integrating Fred Fish's DBUG library into gawk. + + Make awk '/foo/' files... run at egrep speeds (how?) + + ? 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"? + + Make FIELDWIDTHS be an array? + +Code Review +----------- awkgram.y -awkprintf.h -cmd.h -command.y debug.c eval.c ext.c @@ -25,33 +165,67 @@ field.c floatcomp.c floatmagic.h gawkmisc.c -io.c profile.c protos.h -DONE: -awk.h -array.c -builtin.c -node.c -mbsupport.h -xalloc.h -version.c -re.c -replace.c -msg.c -hard-locale.h -custom.h -main.c +DONE +==== + +Minor Cleanups and Code Improvements +------------------------------------ +Done in 4.1: + + Review all FIXME and TODO comments + +Minor New Features +------------------ +Done in 4.1: + + Merge the chapter and the appendix on floating-point math (for 4.1). + +Major New Features +------------------ +Done in 4.1: ------- + DONE: Design and implement I/O plugin API. -Add in gawk/mp + DONE: Implement designed API for loadable modules -Design and implement I/O plugin API. + DONE: Redo the loadable modules interface from the awk level. -Implement C function call API per man pages + DONE: xgawk features (@load, -l, others) -xgawk features (@load, -l, others) + DONE: Merge gawk/pgawk/dgawk into one executable -Add tests for patches in emails + DONE: Merge xmlgawk XML extensions (via source forge project that + works with new API) + + DONE: Integrate MPFR to provide high precision arithmetic. + + DONE: Consider really implementing BWK awk SYMTAB for seeing what + global variables are defined. + +Things To Think About That May Never Happen +------------------------------------------- + +Things That We Decided We Will Never Do +--------------------------------------- + +Code Review +----------- +array.c +awk.h +builtin.c +cmd.h +command.y +custom.h +hard-locale.h +io.c +main.c +mbsupport.h +msg.c +node.c +re.c +replace.c +version.c +xalloc.h |