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#!/usr/bin/perl
use strict;
use warnings;
use Text::Balanced qw(extract_bracketed extract_delimited extract_tagged);
@ARGV >= 1 || die "Usage: $0 <source directory>\n";
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my %stringtable;
sub dec_lua_str
{
my $s = shift;
$s =~ s/[\s\n]+/ /g;
$s =~ s/\\n/\n/g;
$s =~ s/\\t/\t/g;
$s =~ s/\\(.)/$1/g;
$s =~ s/^ //;
$s =~ s/ $//;
return $s;
}
sub dec_tpl_str
{
my $s = shift;
$s =~ s/-$//;
$s =~ s/[\s\n]+/ /g;
$s =~ s/^ //;
$s =~ s/ $//;
$s =~ s/\\/\\\\/g;
return $s;
}
if( open F, "find @ARGV -type f '(' -name '*.html' -o -name '*.lua' ')' |" )
{
while( defined( my $file = readline F ) )
{
chomp $file;
if( open S, "< $file" )
{
local $/ = undef;
my $raw = <S>;
close S;
my $text = $raw;
while( $text =~ s/ ^ .*? (?:translate|translatef|_) [\n\s]* \( /(/sgx )
{
( my $code, $text ) = extract_bracketed($text, q{('")});
$code =~ s/\\\n/ /g;
$code =~ s/^\([\n\s]*//;
$code =~ s/[\n\s]*\)$//;
my $res = "";
my $sub = "";
if( $code =~ /^['"]/ )
{
while( defined $sub )
{
( $sub, $code ) = extract_delimited($code, q{'"}, q{\s*(?:\.\.\s*)?});
if( defined $sub && length($sub) > 2 )
{
$res .= substr $sub, 1, length($sub) - 2;
}
else
{
undef $sub;
}
}
}
elsif( $code =~ /^(\[=*\[)/ )
{
my $stag = quotemeta $1;
my $etag = $stag;
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( $res ) = extract_tagged($code, $stag, $etag);
$res =~ s/^$stag//;
$res =~ s/$etag$//;
}
$res = dec_lua_str($res);
$stringtable{$res}++ if $res;
}
$text = $raw;
while( $text =~ s/ ^ .*? <% -? [:_] /<%/sgx )
{
( my $code, $text ) = extract_tagged($text, '<%', '%>');
if( defined $code )
{
$code = dec_tpl_str(substr $code, 2, length($code) - 4);
$stringtable{$code}++;
}
}
}
}
close F;
}
if( open C, "| msgcat -" )
{
printf C "msgid \"\"\nmsgstr \"Content-Type: text/plain; charset=UTF-8\"\n\n";
foreach my $key ( sort keys %stringtable )
{
if( length $key )
{
$key =~ s/"/\\"/g;
printf C "msgid \"%s\"\nmsgstr \"\"\n\n", $key;
}
}
close C;
}