--- /dev/null
+#!/usr/bin/perl
+
+use strict;
+use warnings;
+use Text::Balanced qw(extract_tagged gen_delimited_pat);
+use POSIX;
+
+POSIX::setlocale(POSIX::LC_ALL, "C");
+
+@ARGV >= 1 || die "Usage: $0 <source directory>\n";
+
+
+my %stringtable;
+
+sub dec_lua_str
+{
+ my $s = shift;
+ $s =~ s/\\n/\n/g;
+ $s =~ s/\\t/\t/g;
+ $s =~ s/\\(.)/$1/sg;
+ $s =~ s/[\s\n]+/ /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 '*.htm' -o -name '*.lua' -o -name '*.js' ')' | sort |" )
+{
+ while( defined( my $file = readline F ) )
+ {
+ chomp $file;
+
+ if( open S, "< $file" )
+ {
+ local $/ = undef;
+ my $raw = <S>;
+ close S;
+
+ my $text = $raw;
+ my $line = 1;
+
+ while ($text =~ s/ ^ (.*?) (?:translate|translatef|i18n|_) ([\n\s]*) \( //sgx)
+ {
+ my ($prefix, $suffix) = ($1, $2);
+ my $code;
+ my $res = "";
+ my $sub = "";
+
+ $line += () = $prefix =~ /\n/g;
+
+ my $position = "$file:$line";
+
+ $line += () = $suffix =~ /\n/g;
+
+ while (defined $sub)
+ {
+ undef $sub;
+
+ if ($text =~ /^ ([\n\s]*(?:\.\.[\n\s]*)?) (\[=*\[) /sx)
+ {
+ my $ws = $1;
+ my $stag = quotemeta $2;
+ (my $etag = $stag) =~ y/[/]/;
+
+ ($sub, $text) = extract_tagged($text, $stag, $etag, q{\s*(?:\.\.\s*)?});
+
+ $line += () = $ws =~ /\n/g;
+
+ if (defined($sub) && length($sub)) {
+ $line += () = $sub =~ /\n/g;
+
+ $sub =~ s/^$stag//;
+ $sub =~ s/$etag$//;
+ $res .= $sub;
+ }
+ }
+ elsif ($text =~ /^ ([\n\s]*(?:\.\.[\n\s]*)?) (['"]) /sx)
+ {
+ my $ws = $1;
+ my $quote = $2;
+ my $re = gen_delimited_pat($quote, '\\');
+
+ if ($text =~ m/\G\s*(?:\.\.\s*)?($re)/gcs)
+ {
+ $sub = $1;
+ $text = substr $text, pos $text;
+ }
+
+ $line += () = $ws =~ /\n/g;
+
+ if (defined($sub) && length($sub)) {
+ $line += () = $sub =~ /\n/g;
+
+ $sub =~ s/^$quote//;
+ $sub =~ s/$quote$//;
+ $res .= $sub;
+ }
+ }
+ }
+
+ if (defined($res))
+ {
+ $res = dec_lua_str($res);
+
+ if ($res) {
+ $stringtable{$res} ||= [ ];
+ push @{$stringtable{$res}}, $position;
+ }
+ }
+ }
+
+
+ $text = $raw;
+ $line = 1;
+
+ while( $text =~ s/ ^ (.*?) <% -? [:_] /<%/sgx )
+ {
+ $line += () = $1 =~ /\n/g;
+
+ ( my $code, $text ) = extract_tagged($text, '<%', '%>');
+
+ if( defined $code )
+ {
+ my $position = "$file:$line";
+
+ $line += () = $code =~ /\n/g;
+
+ $code = dec_tpl_str(substr $code, 2, length($code) - 4);
+
+ $stringtable{$code} ||= [];
+ push @{$stringtable{$code}}, $position;
+ }
+ }
+ }
+ }
+
+ 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 $key )
+ {
+ my @positions = @{$stringtable{$key}};
+
+ $key =~ s/\\/\\\\/g;
+ $key =~ s/\n/\\n/g;
+ $key =~ s/\t/\\t/g;
+ $key =~ s/"/\\"/g;
+
+ printf C "#: %s\nmsgid \"%s\"\nmsgstr \"\"\n\n",
+ join(' ', @positions), $key;
+ }
+ }
+
+ close C;
+}