mirror of
https://github.com/moparisthebest/wget
synced 2024-07-03 16:38:41 -04:00
140 lines
3.0 KiB
Perl
Executable File
140 lines
3.0 KiB
Perl
Executable File
#!/usr/bin/env perl
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# Generate build_info.c.
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# Copyright (C) 2009, 2010, 2011 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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use strict;
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use warnings;
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use Carp qw(croak);
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my $file = shift @ARGV;
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{
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my $data = parse_config();
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output_code($data);
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}
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sub parse_config
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{
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my $features = [];
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my $choice_key;
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my $choice = [];
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my $list = $features;
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open(my $fh, '<', "$file.in") or die "Cannot open $file.in: $!";
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while (<$fh>) {
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next if /^\s*$/;
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if ($list eq $choice) {
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unless (s/^\s+//) {
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$list = $features;
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push @$features, [$choice_key, $choice];
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$choice = [];
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undef $choice_key;
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}
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} elsif (/^([A-Za-z0-9_-]+) \s+ choice:\s*$/x) {
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$choice_key = $1;
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$list = $choice;
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next;
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}
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if (/^([A-Za-z0-9_-]+) \s+ (.*)$/x) {
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push @$list, [$1, $2];
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} else {
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croak "Can't parse line: $_";
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}
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}
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if ($list eq $choice) {
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push @$features, [$choice_key, $choice];
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}
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close($fh);
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return $features;
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}
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sub output_code
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{
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my $features = shift;
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open(my $fh, '>', "$file") or die "Cannot open $file: $!";
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print $fh do { local $/; <DATA> }, "\n";
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print $fh <<EOC;
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const char *compiled_features[] =
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{
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EOC
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foreach my $feature (sort { $a->[0] cmp $b->[0] } @$features) {
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my ($name, $check) = @$feature;
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if (ref $check eq 'ARRAY') {
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my ($ch_name, $ch_check) = @{ shift @$check };
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print $fh <<EOC;
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#if $ch_check
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"+$name/$ch_name",
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EOC
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foreach my $choice (@$check) {
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($ch_name, $ch_check) = @$choice;
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print $fh <<EOC;
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#elif $ch_check
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"+$name/$ch_name",
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EOC
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}
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print $fh <<EOC;
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#else
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"-$name",
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#endif
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EOC
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} else {
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print $fh <<EOC;
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#if $check
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"+$name",
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#else
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"-$name",
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#endif
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EOC
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}
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}
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print $fh <<EOC;
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/* sentinel value */
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NULL
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};
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EOC
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}
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__DATA__
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/* Autogenerated by build_info.pl - DO NOT EDIT */
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/* This stores global variables that are initialized with
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preprocessor declarations for output with the --version flag.
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Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
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2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc. */
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#include "wget.h"
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#include <stdio.h>
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