mirror of
https://git.savannah.gnu.org/git/bison.git
synced 2026-03-09 20:33:03 +00:00
34d4193815
* NEWS (2.5): Add documentation to -D/--define entry. * build-aux/cross-options.pl: Hard-code association of --force-define with %define. * doc/bison.texinfo (Decl Summary): In %define entry, cross-reference command-line options. (Bison Options): Add documentation to -D/--define entry. (Option Cross Key): Widen column for --force-define row. * src/getargs.c (usage): Document -F/--force-define. Realign options in output. (short_options, long_options, getargs): Parse -F/--force-define, and update muscle_percent_define_insert invocation. * src/muscle_tab.h (muscle_percent_define_how): New enum type. (muscle_percent_define_insert): Add argument with that type. * src/muscle_tab.c (muscle_percent_define_insert): Implement -F/--force-define behavior and priorities. * src/parse-gram.y (prologue_declaration): Update muscle_percent_define_insert invocations. * tests/input.at (`%define, --define'): Rename to... (`%define, --define, --force-define'): ... this and extend.
80 lines
2.2 KiB
Perl
Executable File
80 lines
2.2 KiB
Perl
Executable File
#! /usr/bin/env perl
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use warnings;
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use 5.005;
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use strict;
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my %option;
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my %directive;
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my $scanner = `grep -i '"%[a-z]' $ARGV[0]`;
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$scanner =~ s/"\[-_\]"/-/g;
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while (<STDIN>)
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{
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if (/^\s* # Initial spaces.
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(?:(-\w),\s+)? # $1: $short: Possible short option.
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(--[-\w]+) # $2: $long: Long option.
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(\[?) # $3: $opt: '[' iff the argument is optional.
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(?:=(\S+))? # $4: $arg: Possible argument name.
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\s # Spaces.
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/x)
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{
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my ($short, $long, $opt, $arg) = ($1, $2, $3, $4);
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$short = '' if ! defined $short;
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$short = '-d' if $long eq '--defines' && ! $short;
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my $dir = '%' . substr($long, 2);
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if (index ($scanner, "\"$dir\"") < 0)
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{
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if ($long eq '--force-define') { $dir = '%define'; }
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else { $dir = ''; }
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}
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if ($arg)
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{
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# if $opt, $arg contains the closing ].
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substr ($arg, -1) = ''
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if $opt eq '[';
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$arg =~ s/^=//;
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$arg = lc ($arg);
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my $dir_arg = $arg;
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# If the argument is compite (e.g., for --define[=NAME[=VALUE]]),
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# put each word in @var, to build @var{name}[=@var{value}], not
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# @var{name[=value]}].
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$arg =~ s/(\w+)/\@var{$1}/g;
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my $long_arg = "=$arg";
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if ($opt eq '[') {
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$long_arg = "[$long_arg]";
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$arg = "[$arg]";
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}
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# For arguments of directives: this only works if all arguments
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# are strings and have the same syntax as on the command line.
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if ($dir_arg eq 'name[=value]')
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{
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$dir_arg = '@var{name} ["@var{value}"]';
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}
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else
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{
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$dir_arg =~ s/(\w+)/\@var{"$1"}/g;
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$dir_arg = '[' . $dir_arg . ']'
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if $opt eq '[';
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}
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$long = "$long$long_arg";
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$short = "$short $arg" if $short && $short ne '-d';
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$dir = "$dir $dir_arg" if $dir;
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}
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$option{$long} = $short;
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$directive{$long} = $dir;
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}
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}
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my $sep = '';
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foreach my $long (sort keys %option)
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{
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# Avoid trailing spaces.
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print $sep;
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$sep = "\n";
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print '@item @option{', $long, "}\n\@tab";
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print ' @option{', $option{$long}, '}' if $option{$long};
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print "\n\@tab";
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print ' @code{', $directive{$long}, '}' if $directive{$long};
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print "\n";
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}
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