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2006-11-20 Eric Blake <ebb9@byu.net>
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* configure.ac (AC_INIT): Bump version number.
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* NEWS: Describe changes since 1.4.7.
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2006-11-16 Eric Blake <ebb9@byu.net>
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* doc/m4.texinfo (Include, Search Path, Diversions, Divert):
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Minor tweaks noticed while porting to head.
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2006-11-14 Eric Blake <ebb9@byu.net>
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* src/output.c (cleanup_tmpfile, freeze_diversions): Clean up
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(m4_tmpname): Avoid memory leak.
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2006-11-13 Eric Blake <ebb9@byu.net>
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* src/output.c (cleanup_tmpfile): Avoid double error message when
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(m4_tmpname, m4_tmpopen, m4_tmpclose, m4_tmpremove): New
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(m4_tmpfile): Add parameter, move cloexec action here.
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(make_room_for): Adjust caller. Don't keep too many files open.
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(insert_diversion_helper): Unlink emptied temp files.
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(make_diversion): Don't keep too many files open.
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* doc/m4.texinfo (Diversions): Tweak wording, now that open file
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descriptors are no longer a limiting factor.
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* NEWS: Document this change.
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Backport sparse diversion handling from head.
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* m4/gnulib-cache.m4: Augment with 'gnulib-tool --import
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* src/output.c (struct m4_diversion): Rename from struct
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diversion, and update members. All users changed.
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(diversion_table): Change to an ordered set, instead of an array.
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(div0): New storage for diversion 0.
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(diversions): No longer needed.
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(free_list): New list to allow recycling diversion storage.
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(diversion_storage): New storage to reduce malloc overhead.
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(cmp_diversion_CB, threshold_diversion_CB): New callbacks.
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(output_init, output_exit, cleanup_tmpfile, make_room_for)
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(make_diversion): Handle new diversion storage scheme.
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(insert_diversion_helper): New function.
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(insert_diversion, undivert_all, freeze_diversions): Use it.
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* doc/m4.texinfo (Divert, Diversions): Move hidden test of memory
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exhaustion to visible test of large diversion numbers.
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* NEWS: Document this fix.
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2006-11-11 Eric Blake <ebb9@byu.net>
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* src/builtin.c (m4_translit): Slight optimization.
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* src/m4.h (to_uchar): Depend on HAVE_INLINE.
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* src/builtin.c: Remove unnecessary casts.
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(expand_ranges): Make 8-bit clean.
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* doc/m4.texinfo (Translit): Add tests and wording.
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* NEWS: Document this fix.
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2006-11-07 Eric Blake <ebb9@byu.net>
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* src/m4.h (output_exit): New prototype.
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* src/m4.c (main): Use it.
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* src/output.c (cleanup_tmpfile): Close files before removing
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(insert_diversion): Check for failure.
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(output_exit): Avoid memory leak.
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* doc/m4.texinfo (Diversions): Test this bug.
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* doc/m4.texinfo (Esyscmd, Errprint): Minor touchups.
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2006-11-01 Eric Blake <ebb9@byu.net>
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Allow C++ compilation on Linux, as a safety measure in type
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* m4/gnulib-cache.m4: Augment with 'gnulib-tool --import
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* src/m4.h (hack_symbol, hack_all_symbols): Use full prototype.
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(boolean): Kill this, and use stdbool.h instead.
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* src/debug.c, src/eval.c, src/input.c, src/macro.c, src/m4.c:
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* src/output.c, src/symtab.c: All users changed.
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* src/symtab.c (hack_all_symbols): Update prototype.
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* src/builtin.c (dump_symbol, set_trace): Update signature.
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(m4_dumpdef, m4_traceon, m4_traceoff): Update callers.
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(mkstemp_helper, m4_m4wrap, expand_ranges, m4_translit): Allow
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* src/debug.c (trace_flush): Likewise.
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* src/freeze.c (reload_frozen_state): Likewise.
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* src/input.c (push_file, push_string_finish, push_wrapup):
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(token_bottom, next_token): Likewise.
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* src/m4.c (main): Likewise.
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* doc/m4.texinfo (Invoking m4): Update according to POSIX 200x
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* src/m4.h (m4_path_search): Tweak signature.
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* src/path.c (m4_path_search): Likewise.
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* src/builtin.c (include): Update caller.
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* src/m4.c (main): Allow -D, -U, -t, and -s to be interspersed
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with file names. Don't write to **argv.
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(process_file): New helper method.
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* NEWS: Document this fix.
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2006-10-31 Eric Blake <ebb9@byu.net>
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* m4/gnulib-cache.m4: Augment with 'gnulib-tool --import strstr'.
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* doc/m4.texinfo (Translit): Improve the documentation.
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* src/builtin.c (m4_translit): Optimize to O(n) instead of O(n^2)
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(m4_index): Simplify, and speed up slightly.
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* NEWS: Document this fix.
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2006-10-28 Eric Blake <ebb9@byu.net>
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* src/input.c (set_quotes): Don't allow empty end-quote with
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non-empty start-quote.
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(set_comment): Likewise for end-comment.
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* src/builtin.c (m4_changecom): Adjust caller.
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* doc/m4.texinfo (Changequote, Changecom): Update documentation to
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(Incompatibilities): Document another POSIX bug.
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* NEWS: Mention this change.
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2006-10-27 Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
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* examples/Makefile.am (EXTRA_DIST): Distribute recently-added
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2006-10-26 Eric Blake <ebb9@byu.net>
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Silence -Wwrite-strings -Wpointer-arith warnings.
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* src/builtin.c (define_user_macro): Allow NULL argument.
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(m4_builtin, m4_indir): Cast away const of "".
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* src/format.c (format): Likewise.
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* src/macro.c (collect_arguments): Likewise.
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(expand_macro): Avoid math on void*.
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* src/m4.c (main): Adjust caller.
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* src/output.c (freeze_diversions): Detect off_t overflow.
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* src/input.c (pop_input): Remove unnecessary code.
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2006-10-25 Eric Blake <ebb9@byu.net>
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* src/symtab.c (symtab_init): Avoid size_t overflow.
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* src/output.c (make_diversion): Avoid size_t overflow.
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* doc/m4.texinfo (Diversions): Test this fix.
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* src/input.c (input_block): Remove unused member. Reduce size
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(push_file, pop_input): Avoid useless assignment.
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* NEWS: Document the bug fix.
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Redo location tracking. Instead of having just files track the
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line to return to when popping input, now all input blocks track
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* src/input.c (INPUT_STRING_WRAP, INPUT_FILE_INIT): No longer
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(input_block): Have line and file storage for all input types, and
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(input_change): New global flag.
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(push_file, push_macro, push_string_init, push_wrapup): Store
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(push_string_finish, pop_input, pop_wrapup): Notice changes in
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(peek_input): Adjust to new member names.
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(next_char, next_char1): Adjust location if needed.
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(skip_line): Simplify restoring location.
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* doc/m4.texinfo (Location): Augment the test to catch line
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location of expansion of multi-line arguments.
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Reported by Stepan Kasal.
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2006-10-23 Eric Blake <ebb9@byu.net>
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* doc/m4.texinfo (Macro Arguments): Document that leading space
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in argument collection stops at macro expansion.
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(Incompatibilities): Document POSIX whitespace wording issue.
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2006-10-20 Eric Blake <ebb9@byu.net>
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* doc/m4.texinfo: Trailing '@comment' doesn't format nicely in
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TeX, so recognize '@w{ }' instead. Likewise, @code{_name} at the
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end of a TeX line splits incorrectly.
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(Foreach, Improved foreach): Write these sections, borrowing ideas
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from CVS head and from m4sugar.
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* checks/get-them: Accomodate new way to show trailing space in
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* examples/foreach.m4: Make usable in documentation.
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* examples/foreachq.m4: New file.
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* examples/foreachq2.m4: New file.
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* examples/foreach2.m4: New file.
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* NEWS: Document the documentation updates.
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2006-10-19 Eric Blake <ebb9@byu.net>
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* src/builtin.c (mkstemp_helper, m4_mkstemp): New functions.
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(m4_maketemp): Provide traditional behavior.
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* doc/m4.texinfo (Mkstemp): Rename from Maketemp. Document the
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new `mkstemp' macro and the flaws of the old `maketemp'.
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(Incompatibilities): Move maketemp discussion to...
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(Extensions): ...here, since -G now supresses the GNU extension.
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* NEWS: Document this.
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* examples/forloop.m4: Simplify.
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* examples/forloop2.m4: New file.
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* examples/quote.m4: New file.
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* doc/m4.texinfo (Loops): Rename to...
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(Shift): ...this node.
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(Forloop, Foreach, Improved forloop, Improved foreach): New
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2006-10-17 Eric Blake <ebb9@byu.net>
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* m4/gnulib-cache.m4: Update with 'gnulib-tool --import
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* configure.ac (AC_CONFIG_HEADERS): Create config.h alongside
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gnulib headers, rather than in top directory.
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* src/Makefile.am (AUTOMAKE_OPTIONS): Add nostdinc, to reduce make
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2006-10-16 Eric Blake <ebb9@byu.net>
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* doc/m4.texinfo: Backport some minor cleanups from head.
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(Cleardivert): Rename from cleardiv.
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* doc/m4.texinfo (Invoking m4): Promote to a chapter, instead of
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a section of Preliminaries.
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(Operation modes, Preprocessor features, Limits control)
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(Frozen state, Debugging options, Command line files): Subdivide
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(Input processing, Quoting Arguments, Define, Arguments)
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(Cleardiv, Format, M4exit): Fix grammar of references.
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(Inhibiting Invocation, Macro Arguments, Builtin, Trace)
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(Debug Levels, Debug Output, Include, Search Path, Divert)
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(Platform macros, Syscmd, Location, Extensions): Point to new
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(Top, Loops, Include, Undivert, Location, Incompatibilities):
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Improve file references.
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2006-10-14 Eric Blake <ebb9@byu.net>
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* m4/input.c (file_clean): Don't close stdin twice, POSIX says it
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Reported by Ralf Wildenhues.
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* src/builtin.c (m4_undivert): Check for read error.
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2006-10-13 Eric Blake <ebb9@byu.net>
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* src/m4.h (UNIX, W32_NATIVE, OS2): Move platform checks after
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header files are included, since <unistd.h> can affect the tests.
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Reported by Martin Koeppe.
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Backport head's usage of clean-temp module, as it is cleaner than
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* m4/gnulib-cache.m4: Augment with 'gnulib-tool --import
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clean-temp closeout', and remove tmpfile-safer.
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* src/m4.h (includes): Adjust.
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(m4_path_search): Rename from path_search, to avoid collision
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* src/m4.c (main): Install closeout handler. Adjust caller.
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(usage): Now done by closeout module.
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* src/builtin.c (m4_m4exit): Likewise.
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(m4_undivert, include): Adjust callers.
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* src/freeze.c (reload_frozen_state): Likewise.
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* src/path.c (m4_path_search): Rename from path_search.
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* src/output.c (output_temp_dir): New variable.
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(cleanup_tmpfile, m4_tmpfile): New functions, from head.
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(insert_diversion, make_room_for): Use them.
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* doc/m4.texinfo (Diversions): Document this, and add a test.
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(Improved fatal_error): Fix typo.
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(Maketemp): Port test to mingw, and no longer hide from
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* NEWS: Document the change in TMPDIR behavior.
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* configure.ac (m4_pattern_forbid): Narrow the range of forbidden
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macros, to work with recent gnulib-tool update.
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* src/builtin.c (m4_builtin, m4_indir): Allow transparent
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handling of defn results.
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* doc/m4.texinfo (Builtin, Indir): Add test cases.
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* NEWS: Document this.
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2006-10-12 Eric Blake <ebb9@byu.net>
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* doc/m4.texinfo (Location): Fix typo in previous commit.
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(Changeword): Catch one more case.
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* src/input.c (skip_line): Fix case when outer file used macro to
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2006-10-11 Eric Blake <ebb9@byu.net>
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* src/input.c (enum input_type): Add additional types, to shave
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time off the common case.
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(push_wrapup): Wrapped strings remember location.
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(push_string_finish): Normal strings carry no location.
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(push_file): Start new files uninitialized.
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(peek_input, next_char_1): Optimize common cases by updating
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location only on new input types.
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(pop_input): Update to honor new input types.
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(skip_line, push_string_finish): Fix regression in previous patch
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when dnl is not followed by newline in included file.
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(push_string_init): Initialize all fields of INPUT_STRING sooner.
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(peek_token): Simplify.
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(peek_input): Don't pop input files on peek, so that __file__ and
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__line__ as last token of include file work correctly.
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* doc/m4.texinfo (History): Mention 1.4.8.
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(Answers): Split into sections, one per answer.
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(Improved exch, Improved cleardivert, Improved fatal_error): New
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(Dnl, M4wrap, Location, M4exit, Improved fatal_error): Update to
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new m4wrap location semantics.
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(Changeword): Add test that caught the regression.
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* NEWS: Document this.
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* src/macro.c (expand_macro): In macro expansion errors, report
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line number at open parenthesis.
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* src/input.c (next_token): Fix off-by-one bug in reporting end
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of file in unterminated comment and string.
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(file_names): New obstack, necessary since expand_macro now hangs
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on to file names longer than the files remain open.
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(input_init): Initialize new obstack.
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(push_file): Use new obstack. Delay updates to current_file
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until after expand_macro has restored state.
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(peek_input, next_char_1): Update current_file if necessary.
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(pop_wrapup): Release memory.
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* doc/m4.texinfo (Macro Arguments, Changequote, Changecom): Catch
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(Dnl): Update to the new location reporting rules.
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* NEWS: Document these changes.
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2006-10-10 Eric Blake <ebb9@byu.net>
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* src/macro.c (argc_stack, argv_stack): New variables for sharing
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obstacks across multiple macro calls.
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(expand_input): Initialize and tear down stack once per input
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file, instead of once per macro.
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(expand_macro): Reuse existing stacks when possible.
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(collect_arguments): Simplify slightly.
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* src/path.c (include_env_init): Fix botched patch application.
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Reported by Ralf Wildenhues.
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2006-10-09 Eric Blake <ebb9@byu.net>
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* src/m4.c (usage, main): Detect write failures to stderr.
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* src/builtin.c (m4_m4exit): Likewise.
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* NEWS: Document this.
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* src/macro.c (expand_macro): Allow --nesting-limit=0 to remove
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* NEWS: Document this.
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* doc/m4.texinfo (Invoking m4): Likewise.
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2006-10-09 Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
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* src/path.c (include_env_init): Copy the string returned
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by getenv before overwriting it; POSIX disallows this.
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2006-10-09 Eric Blake <ebb9@byu.net>
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* src/m4.c (main): Defer debugfile until after --help.
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* configure.ac (AC_INIT): Bump version number.
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* NEWS: Start changes of 1.4.7a.
1
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2006-09-25 Eric Blake <ebb9@byu.net>
added
removed
ChangeLog
