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Improves options in the manual.

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* 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/local.mk (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.
This commit is contained in:
Di-an Jan
2008-11-20 12:36:30 -08:00
parent 6c88b51e83
commit a7c09cba09
6 changed files with 64 additions and 16 deletions
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5
src/getargs.c
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@@ -248,6 +248,11 @@ usage (int status)
program_name);
else
{
/* For ../build-aux/cross-options.pl to work, use the format:
^ -S, --long[=ARGS] (whitespace)
A --long option is required.
Otherwise, add exceptions to ../build-aux/cross-options.pl. */
printf (_("Usage: %s [OPTION]... FILE\n"), program_name);
fputs (_("\
Generate LALR(1) and GLR parsers.\n\

7
src/scan-gram.l
View File

@@ -157,6 +157,13 @@ splice (\\[ \f\t\v]*\n)*
/*----------------------------.
| Scanning Bison directives. |
`----------------------------*/
/* For directives that are also command line options, the regex must be
"%..."
after "[-_]"s are removed, and the directive must match the --long
option name, with a single string argument. Otherwise, add exceptions
to ../build-aux/cross-options.pl. */
<INITIAL>
{
"%binary" return PERCENT_NONASSOC;