TODO file for GNU m4 Tell if you feel like volunteering for any of these ideas, listed more or less in decreasing order of priority. * Features or problems - Fix format() builtin to handle %c more like printf(1) in the shell http://lists.gnu.org/archive/html/bug-m4/2007-05/msg00047.html Also, gnulib needs help to overcome mingw bugs related to format(). - Update documentation from accumulated mail about it - Study synclines at the very beginning of each diverted sequence - Make eval work on bignums - the 32 bits limit is artificial From Krste Asanovic , 1993-03-20 * Optimization and clean up - Check for memory leaks and uninitialized reads From Vern Paxson on 1993-12-06 - Profile GNU m4 and speed it up From David J. MacKenzie , 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 , 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.). Local Variables: mode: outline outline-regexp: " *[-+*.] \\| " End: Copyright (C) 2000, 2006-2007, 2009-2014, 2016 Free Software Foundation, Inc. Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, with no Front-Cover Texts, and with no Back-Cover Texts. A copy of the license is included in the ``GNU Free Documentation License'' file as part of this distribution.