tools/inc/lib/jsgettext/: bundle jsgettext library from https://code.google.com/p/jsgettext

tools/inc/lib/jsgettext/jsgettext.php

@@ -0,0 +1,59 @@
+<?php
+
+	require_once 'JSParser.php';
+	require_once 'PoeditParser.php';
+
+	function buildOptions($args) {
+		$options = array(
+			'files' => array(),
+			'-o'	=> null,
+			'-k'	=> '_'
+		);
+		$len = count($args);
+		$i = 0;
+		while ($i < $len) {
+			if (preg_match('#^-[a-z]$#i', $args[$i])) {
+				$options[$args[$i]] = isset($args[$i+1]) ? trim($args[$i+1]) : true;
+				$i += 2;
+			}
+			else {
+				$options['files'][] = $args[$i];
+				$i++;
+			}
+		}
+		return $options;
+	}
+
+	$options = buildOptions($argv);
+
+	if (!file_exists($options['-o']) || !is_writable($options['-o'])) {
+		die("Invalid output file name. Make sure it exists and is writable.");
+	}
+
+	$inputFiles = $options['files'];
+
+	if (empty($inputFiles)) {
+		die("You did not provide any input file.");
+	}
+
+	$poeditParser = new PoeditParser($options['-o']);
+	$poeditParser->parse();
+
+	$errors = array();
+
+	foreach ($inputFiles as $f) {
+		if (!is_readable($f) || !preg_match('#\.js$#', $f)) {
+			$errors[] = ("$f is not a valid javascript file.");
+			continue;
+		}
+		$jsparser = new JSParser($f, explode(' ', $options['-k']));
+		$jsStrings = $jsparser->parse();
+		$poeditParser->merge($jsStrings);
+	}
+
+	if (!empty($errors)) {
+		echo "\nThe following errors occured:\n" . implode("\n", $errors) . "\n";
+	}
+
+	$poeditParser->save();
+?>