--- /dev/null
+<?php
+/**
+ * Convert Language files to .po files !
+ *
+ * Todo:
+ * - generate .po header
+ * - fix escaping of \
+ */
+
+/** This is a command line script */
+require_once('commandLine.inc');
+require_once('languages.inc');
+
+define('ALL_LANGUAGES', true);
+define('XGETTEXT_BIN', 'xgettext');
+define('XGETTEXT_OPTIONS', '-n --keyword=wfMsg');
+
+define('LOCALE_OUTPUT_DIR', $IP.'/locale');
+
+
+if( isset($options['help']) ) { usage(); die(); }
+// default output is WikiText
+if( !isset($options['lang']) ) { $options['lang'] = ALL_LANGUAGES; }
+
+function usage() {
+print <<<END
+Usage: php lang2po.php [--help] [--lang=<langcode>] [--stdout]
+ --help: this message.
+ --lang: a lang code you want to generate a .po for (default: all languages).
+
+END;
+}
+
+
+/**
+ * generate and write a file in .po format.
+ *
+ * @param string $langcode Code of a language it will process.
+ * @param array &$messages Array containing the various messages.
+ * @return string Filename where stuff got saved or false.
+ */
+function generatePo($langcode, &$messages) {
+ $data = ''; // TODO a .po header ?
+
+ // Generate .po entries
+ foreach($messages as $identifier => $content) {
+ $data .= "msgid \"$identifier\"\n";
+
+ // Double quotes escaped for $content:
+ $tmp = 'msgstr "'.str_replace('"', '\"', $content)."\"";
+ // New line should end with "\n not \n
+ $data .= str_replace("\n", "\"\n\"", $tmp);
+ $data .= "\n\n";
+ }
+
+ // Write the content to a file in locale/XX/messages.po
+ $dir = LOCALE_OUTPUT_DIR.'/'.$langcode;
+ if( !is_dir($dir) ) { mkdir( $dir, 0770 ); }
+ $filename = $dir.'/fromlanguagefile.po';
+
+ $file = fopen( $filename , 'wb' );
+ if( fwrite( $file, $data ) ) {
+ fclose( $file );
+ return $filename;
+ } else {
+ fclose( $file );
+ return false;
+ }
+}
+
+$langTool = new languages();
+
+// Do all languages
+foreach ( $langTool->getList() as $langcode) {
+ echo "Loading messages for $langcode:\t";
+ require_once( 'languages/Language' . $langcode . '.php' );
+ $arr = 'wgAllMessages'.$langcode;
+ if(!@is_array($$arr)) {
+ echo "NONE FOUND\n";
+ } else {
+ echo "ok\n";
+ if( ! generatePo($langcode, $$arr) ) {
+ echo "ERROR: Failed to wrote file.\n";
+ }
+ }
+}
+
+// Generate a default .po based source tree
+echo "Getting 'gettext' default messages from sources\n";
+exec( XGETTEXT_BIN
+ .' '.XGETTEXT_OPTIONS
+ .' -o '.$IP.'/locale/wfMsg.po'
+ .' '.$IP.'/includes/*php'
+ );
+
+
+?>