* src/getargs.h, src/getargs.c (trace_muscle): New.
(trace_types, trace_args): Support it.
* src/output.c (output_skeleton): Use it.
(cherry picked from commit 5263bea9f7)
* doc/bison.texinfo (-g, -x): Add space before argument.
(Option Cross Key): Implement FIXME: listing directives also.
* build-aux/cross-options.pl: Read from <STDIN> rather than <>.
(Short Option): Special case -d. Put arguments inside @option.
(Bison Directive): Add column, automatically extracted from
src/scan-gram.l (actual name passed as the first argument)
with special case for %define.
* doc/Makefile.am (doc/cross-options.texi): Pass src/scan-gram.l
to build-aux/cross-options.pl.
* src/getargs.c (usage): Document limitations of cross-options.pl.
* src/scan-gram.l: Likewise.
* src/getargs.h, src/getargs.c (skeleton_arg, language_argmatch):
The location argument is now mandatory.
Adjust all dependencies.
(getargs): Use command_line_location.
* src/getargs.c (quotearg.h, muscle_tab.h): Include.
(getargs): Define file_name.
* src/main.c (main): Initialize muscle_tab before calling
getargs.
* src/muscle_tab.c (muscle_init): No longer define file_name, as
its value is not available yet.
* build-aux/cross-options.pl: As in --help output, write optional
arguments as [=ARG] not =[ARG].
* doc/bison.texinfo (Bison Options): Add -W/--warnings argument.
* build-aux/cross-options.pl: As in --help output, write optional
arguments as [=ARG] not =[ARG].
* doc/bison.texinfo (Bison Options): Add -W/--warnings argument.
* build-aux/cross-options.pl: The argument ends at the first
space, not the first non-symbol character.
Use @var for each word appearing the argument description.
(cherry picked from commit 74eae918c3)
If the first m4 in $PATH is wrong, it keeps looking. Moreover, its
requirements for a correct m4 are stricter.
* m4/m4.m4: Replace with Autoconf 2.63's m4/m4.m4.
* configure.ac: Update to use AC_PROG_GNU_M4.
Reported by Eric Blake.
If the first m4 in $PATH is wrong, it keeps looking. Moreover, its
requirements for a correct m4 are stricter.
* m4/m4.m4: Make it a symbolic link to submodules/autoconf/m4/m4.m4.
* configure.ac: Update to use AC_PROG_GNU_M4.
Reported by Eric Blake.
* src/parse-gram.y (PERCENT_DEBUG, PERCENT_ERROR_VERBOSE): Token
definitions and associated rules, replaced by....
(PERCENT_FLAG): this new token type, and rule.
* src/scan-gram.l (RETURN_PERCENT_FLAG): New.
Use it for %debug and %error-verbose.
This allows to pass -Derror_verbose on the command line. Better yet, it
allows to pass -Derror_verbose=$(ERROR_VERBOSE), with ERROR_VERBOSE being
defined as false or true.
* data/bison.m4 (b4_percent_define_if_define): Instead of relying
on b4_percent_define_ifdef, for does not check the defined value,
but only whether the symbol is defined, rely on
b4_percent_define_flag_if, so that a value of "false" is processed
as a false.
If not defined, define the flag to "false".
(b4_error_verbose_if): New.
* data/glr.c, data/lalr1.cc, data/yacc.c: Use it instead of
b4_error_verbose_flag.
* src/getargs.h, src/getargs.c (error_verbose_flag): Remove.
* src/output.c (prepare): Don't output it.
* src/parse-gram.y (%error-verbose): Treat as %define error_verbose.
Reported by Akim Demaille at
<http://lists.gnu.org/archive/html/bug-bison/2007-12/msg00001.html>
and discussed again starting at
<http://lists.gnu.org/archive/html/bison-patches/2008-11/msg00102.html>.
* data/bison.m4 (b4_percent_define_default): Leave syncline blank
because location information is bogus.
Use angle brackets to delimit fake file name because square brackets
look like over-quoted m4. Choose a better fake file name.
Use negative line numbers.
* src/muscle_tab.c (muscle_percent_define_default): Likewise.
* src/location.c (location_print): If line for a boundary is negative,
only print that boundary's file name.
* src/location.h: Document that.
* tests/skeletons.at (%define Boolean variables: invalid skeleton
defaults): Update output.
Reported by Akim Demaille at
<http://lists.gnu.org/archive/html/bug-bison/2007-12/msg00001.html>
and discussed again starting at
<http://lists.gnu.org/archive/html/bison-patches/2008-11/msg00102.html>.
* data/bison.m4 (b4_percent_define_default): Leave syncline blank
because location information is bogus.
Use angle brackets to delimit fake file name because square brackets
look like over-quoted m4. Choose a better fake file name.
Use negative line numbers.
* src/muscle_tab.c (muscle_percent_define_default): Likewise.
* src/location.c (location_print): If line for a boundary is negative,
only print that boundary's file name.
* src/location.h: Document that.
* tests/skeletons.at (%define Boolean variables: invalid skeleton
defaults): Update output.
* Makefile.am (AM_CFLAGS): Remove $(WERROR_CFLAGS) because many files
in lib won't compile with it.
* src/local.mk (src_bison_CFLAGS): Use $(WERROR_CFLAGS) here only.
GCC 4.3 now warns about "a || b && c" and asks for explicit
parentheses.
Reported by Alexandre Duret-Lutz.
* data/location.cc: Update copyright years.
(Position::operator==): Use parens to make precedence explicit.
Compare lines and columns first, as they are more likely to be
different, and they are faster to compare.
