build: add lua-po conversation script

1 files changed, 113 insertions, 0 deletions

diff --git a/build/i18n-lua2po.pl b/build/i18n-lua2po.pl
new file mode 100755
index 000000000..262b427f2
--- /dev/null
+++ b/build/i18n-lua2po.pl
@@ -0,0 +1,113 @@
+#!/usr/bin/perl
+
+@ARGV == 3 || die "Usage: $0 <source-dir> <dest-dir> <target-language>\n";
+
+my $source_dir  = shift @ARGV;
+my $target_dir  = shift @ARGV;
+my $target_lang = shift @ARGV;
+my $master_lang = "en";
+
+
+if( ! -d $target_dir )
+{
+	system('mkdir', '-p', $target_dir);
+}
+
+
+my %target_strings;
+
+
+if( open F, "find $source_dir -path '*/luasrc/i18n/*' -name '*.$target_lang.lua' |" )
+{
+	while( chomp( my $file = readline F ) )
+	{
+		if( open L, "< $file" )
+		{
+			my ( $basename ) = $file =~ m{.+/([^/]+)\.\w+\.lua$};
+			$target_strings{$basename} = { };
+
+			while( chomp( my $entry = readline L ) )
+			{
+				my ( $k, $v );
+				if( $entry =~ /^\s*(\w+)\s*=\s*\[\[(.+)\]\]/ )
+				{
+					( $k, $v ) = ( $1, $2 );
+				}
+				elsif( $entry =~ /^\s*(\w+)\s*=\s*'(.+)'/ )
+				{
+					( $k, $v ) = ( $1, $2 );
+				}
+				elsif( $entry =~ /^\s*(\w+)\s*=\s*"(.+)"/ )
+				{
+					( $k, $v ) = ( $1, $2 );
+				}
+				
+				if( $k && $v )
+				{
+					$v =~ s/"/\\"/g;
+					$target_strings{$basename}{$k} = $v;
+				}
+			}
+
+			close L;
+		}
+	}
+
+	close F;
+}
+
+
+if( open F, "find . -path '*/luasrc/i18n/*' -name '*.$master_lang.lua' |" )
+{
+	while( chomp( my $file = readline F ) )
+	{
+		if( open L, "< $file" )
+		{
+			my ( $basename ) = $file =~ m{.+/([^/]+)\.\w+\.lua$};
+
+			if( open T, "> $target_dir/$basename.$target_lang.po" )
+			{
+				printf "Generating %-40s ",
+					"$target_dir/$basename.$target_lang.po";
+		
+				printf T "#  %s.%s.po\n#  generated from %s\n\nmsgid \"\"\n" .
+				         "msgstr \"Content-Type: text/plain; charset=UTF-8\"\n\n",
+					$basename, $target_lang, $file;
+		
+				while( chomp( my $entry = readline L ) )
+				{
+					my ( $k, $v );
+					if( $entry =~ /^\s*(\w+)\s*=\s*\[\[(.+)\]\]/ )
+					{
+						( $k, $v ) = ( $1, $2 );
+					}
+					elsif( $entry =~ /^\s*(\w+)\s*=\s*'(.+)'/ )
+					{
+						( $k, $v ) = ( $1, $2 );
+					}
+					elsif( $entry =~ /^\s*(\w+)\s*=\s*"(.+)"/ )
+					{
+						( $k, $v ) = ( $1, $2 );
+					}
+				
+					if( $k && $v )
+					{
+						$v =~ s/"/\\"/g;
+						printf T "#: %s:%d\n#. \"%s\"\nmsgid \"%s\"\nmsgstr \"%s\"\n\n",
+							$file, $., $v, $k,
+							( $target_strings{$basename} && $target_strings{$basename}{$k} )
+								? $target_strings{$basename}{$k} : $v;
+					}
+				}
+				
+				close T;
+				
+				print "done\n";
+			}
+
+			close L;
+		}
+	}
+
+	close F;
+}