Generate the long/short option cross-table.

* build-aux/cross-options.pl: New.
* doc/Makefile.am (cross-options.texi): New.
* doc/bison.texinfo: Use it.

ChangeLog

@@ -1,3 +1,10 @@
+2007-11-04  Akim Demaille  <demaille@gostai.com>
+
+	Generate the long/short option cross-table.
+	* build-aux/cross-options.pl: New.
+	* doc/Makefile.am (cross-options.texi): New.
+	* doc/bison.texinfo: Use it.
+
 2007-11-04  Akim Demaille  <demaille@gostai.com>
 
 	Generate bison.1 using help2man.

build-aux/cross-options.pl

@@ -0,0 +1,32 @@
+#! /usr/bin/env perl
+
+use warnings;
+use 5.005;
+use strict;
+
+my %option;
+while (<>)
+{
+    if (/^\s*(?:(-\w), )?(--[-\w]+)(\[?)(=[-\w]+)?\]?/)
+    {
+	my ($short, $long, $opt, $arg) = ($1, $2, $3, $4);
+	$short = defined $short ? '@option{' . $short . '}' : '';
+	if ($arg)
+	{
+	    $arg =~ s/^=//;
+	    $arg = '@var{' . lc ($arg) . '}';
+	    $arg = '[' . $arg . ']'
+		if defined $opt;
+	    $option{"$long=$arg"} = "$short $arg";
+	}
+	else
+	{
+	    $option{"$long"} = "$short";
+	}
+    }
+}
+
+foreach my $long (sort keys %option)
+{
+    printf "\@item %-40s \@tab %s\n", '@option{' . $long . '}', $option{$long};
+}

doc/bison.texinfo

@@ -7861,20 +7861,7 @@ the corresponding short option.
 
 @multitable {@option{--defines=@var{defines-file}}} {@option{-b @var{file-prefix}XXX}}
 @headitem Long Option @tab Short Option
-@item @option{--debug}                      @tab @option{-t}
+@include cross-options.texi
-@item @option{--defines=@var{defines-file}} @tab @option{-d}
-@item @option{--file-prefix=@var{prefix}}   @tab @option{-b @var{file-prefix}}
-@item @option{--graph=@var{graph-file}}     @tab @option{-d}
-@item @option{--help}                       @tab @option{-h}
-@item @option{--name-prefix=@var{prefix}}   @tab @option{-p @var{name-prefix}}
-@item @option{--no-lines}                   @tab @option{-l}
-@item @option{--output=@var{outfile}}       @tab @option{-o @var{outfile}}
-@item @option{--print-localedir}            @tab
-@item @option{--print-datadir}              @tab
-@item @option{--token-table}                @tab @option{-k}
-@item @option{--verbose}                    @tab @option{-v}
-@item @option{--version}                    @tab @option{-V}
-@item @option{--yacc}                       @tab @option{-y}
 @end multitable
 
 @node Yacc Library