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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/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.
This commit is contained in:
Di-an Jan
2008-11-20 12:36:30 -08:00
committed by Joel E. Denny
parent e80b068ce1
commit 72183df4da
6 changed files with 66 additions and 18 deletions
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5
src/getargs.c
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@@ -246,6 +246,11 @@ 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\

11
src/scan-gram.l
View File

@@ -1,7 +1,7 @@
/* Bison Grammar Scanner -*- C -*-
Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation,
Inc.
Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software
Foundation, Inc.
This file is part of Bison, the GNU Compiler Compiler.
@@ -152,6 +152,13 @@ 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;