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<TITLE>GNU m4 - TODO - Things still to be done</TITLE>
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<H2>TODO - Things still to be done</H2>
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<PRE>* TODO file for GNU m4 -*- indented-text -*-
Tell the maintainers at <bug-m4@gnu.org> if you feel like volunteering
for any of these ideas or if you have others to add.
* Features or problems
+ GMP eval() should be enables if the library is present, maybe by
providing two different versions of eval(). That way users can
choose whether to use gmp on an individual basis.
+ There should be a way ot have m4 discard comments instead of
outputting them.
+ Implement discarding comment delimiters with the syntax table.
+ The module system is still rudimentary (see below)
+ Changes in the syntax_table are not saved to frozen files.
+ Information about loaded modules is not saved to frozen files.
+ m4wrap.1.test fail on Solaris 2.6 using egcs 1.1a compiler (Erick B).
+ The $ used in user defined macros cannot be changed through
changesyntax. It should be handled as a modifier.
+ Make show include dependencies like gcc so targets are updated
when their (included) input files are updated (Erick B).
+ The test case `other-tests/stackovf.test' does not work.
+ Sort out all the weird forms of interaction between changesyntax,
changecom and changequote. What happens if you install a quote with
changequote and removes it with changesyntax and vice versa.
+ Add support for wide character sets.
* Optimization and clean up
+ Have NULs go really undisturbed through GNU m4
GNU m4 is lousy regarding NULs in streams (this would require
maintaining the string lengths, and avoiding strlen, strcpy,
etc.).
* Module specific issues
+ Support for other DL interfaces besides dlopen, such as dld and
hpux is still missing.
+ Modules should be loadable from the command line with something like
`-M module.so' o `--load-module=module.so'. M4 should abort if it
fails.
+ Some way of linking a module statically is needed, for systems
without support for dynamic loading.
Below is the old 1.4 TODO list, several years old. Only a few points
have been kept. Some things are fixed, many others just seem
dated. Write me if I have been to harsh. (René Seindal)
------------------------------------------------------------------------
Tell <pinard@iro.umontreal.ca> if you feel like volunteering for any
of these ideas, listed more or less in decreasing order of priority.
Some TODO items are implicit from received email. See file BACKLOG.
.* Features or problems
. + Update documentation from accumulated mail about it
. + Changeword without arguments should restore default behavior
. + Study synclines at the very beginning of each diverted sequence
. + Make eval work on bignums - the 32 bits limit is artificial
From Krste Asanovic <krste@icsi.berkeley.edu>, 1993-03-20
. + Make show include dependencies like gcc so targets are updated
when their (included) input files are updated (Erick B).
. + Ask FSF to create m4-bugs@gnu.org for bug reports (Erick B).
. + m4wrap.1.test fail on Solaris 2.6 using egcs 1.1a compiler (Erick B).
.* Optimization and clean up
. + Check for memory leaks and uninitialized reads
From Vern Paxson <vern@horse.ee.lbl.gov> on 1993-12-06
. + Simplify format/ecvt code, together with HAVE_EFGCVT
. + Finalize the stdarg vs varargs thing
. + Profile GNU m4 and speed it up
From David J. MacKenzie <djm@eng.umd.edu>, 1993-01-20
GNU m4 should be sped up by a factor of three for competing
with other versions (I think that the lexer is not agressive
enough and too often return single characters; obstacks might
be a little abused, too).
. + Have NULs go really undisturbed through GNU m4
See `dumpdef' and debugging section, which abuses %s
From Thorsten Ohl <ohl@chico.harvard.edu>, 1992-12-21
path.c (add_include_directory): Why the '\0' terminator?
GNU m4 is lousy regarding NULs in streams (this would require
maintaining the string lengths, and avoiding strlen, strcpy,
etc.).
. + Clean up the obstack.[ch] code
. + Use rx.[ch] instead of regex.[ch]
From Hal Peterson <hrp@ironwood.cray.com>, 1994-04-22
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