--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/wp-includes/pomo/mo.php	Wed Dec 23 17:55:33 2009 +0000
@@ -0,0 +1,185 @@
+<?php
+/**
+ * Class for working with MO files
+ *
+ * @version $Id: mo.php 106 2009-04-23 19:48:22Z nbachiyski $
+ * @package pomo
+ * @subpackage mo
+ */
+
+require_once dirname(__FILE__) . '/translations.php';
+require_once dirname(__FILE__) . '/streams.php';
+
+class MO extends Gettext_Translations {
+
+	var $_nplurals = 2;
+
+	/**
+	 * Fills up with the entries from MO file $filename
+	 *
+	 * @param string $filename MO file to load
+	 */
+	function import_from_file($filename) {
+		$reader = new POMO_CachedIntFileReader($filename);
+		if (isset($reader->error)) {
+			return false;
+		}
+		return $this->import_from_reader($reader);
+	}
+	
+	function export_to_file($filename) {
+		$fh = fopen($filename, 'wb');
+		if ( !$fh ) return false;
+		$entries = array_filter($this->entries, create_function('$e', 'return !empty($e->translations);'));
+		ksort($entries);
+		$magic = 0x950412de;
+		$revision = 0;
+		$total = count($entries) + 1; // all the headers are one entry
+		$originals_lenghts_addr = 28;
+		$translations_lenghts_addr = $originals_lenghts_addr + 8 * $total;
+		$size_of_hash = 0;
+		$hash_addr = $translations_lenghts_addr + 8 * $total;
+		$current_addr = $hash_addr;
+		fwrite($fh, pack('V*', $magic, $revision, $total, $originals_lenghts_addr,
+			$translations_lenghts_addr, $size_of_hash, $hash_addr));
+		fseek($fh, $originals_lenghts_addr);
+		
+		// headers' msgid is an empty string
+		fwrite($fh, pack('VV', 0, $current_addr));
+		$current_addr++;
+		$originals_table = chr(0);
+
+		foreach($entries as $entry) {
+			$originals_table .= $this->export_original($entry) . chr(0);
+			$length = strlen($this->export_original($entry));
+			fwrite($fh, pack('VV', $length, $current_addr));
+			$current_addr += $length + 1; // account for the NULL byte after
+		}
+		
+		$exported_headers = $this->export_headers();
+		fwrite($fh, pack('VV', strlen($exported_headers), $current_addr));
+		$current_addr += strlen($exported_headers) + 1;
+		$translations_table = $exported_headers . chr(0);
+		
+		foreach($entries as $entry) {
+			$translations_table .= $this->export_translations($entry) . chr(0);
+			$length = strlen($this->export_translations($entry));
+			fwrite($fh, pack('VV', $length, $current_addr));
+			$current_addr += $length + 1;
+		}
+		
+		fwrite($fh, $originals_table);
+		fwrite($fh, $translations_table);
+		fclose($fh);
+	}
+	
+	function export_original($entry) {
+		//TODO: warnings for control characters
+		$exported = $entry->singular;
+		if ($entry->is_plural) $exported .= chr(0).$entry->plural;
+		if (!is_null($entry->context)) $exported = $entry->context . chr(4) . $exported;
+		return $exported;
+	}
+	
+	function export_translations($entry) {
+		//TODO: warnings for control characters
+		return implode(chr(0), $entry->translations);
+	}
+	
+	function export_headers() {
+		$exported = '';
+		foreach($this->headers as $header => $value) {
+			$exported.= "$header: $value\n";
+		}
+		return $exported;
+	}
+
+	function get_byteorder($magic) {
+
+		// The magic is 0x950412de
+
+		// bug in PHP 5.0.2, see https://savannah.nongnu.org/bugs/?func=detailitem&item_id=10565
+		$magic_little = (int) - 1794895138;
+		$magic_little_64 = (int) 2500072158;
+		// 0xde120495
+		$magic_big = ((int) - 569244523) && 0xFFFFFFFF;
+		
+		if ($magic_little == $magic || $magic_little_64 == $magic) {
+			return 'little';
+		} else if ($magic_big == $magic) {
+			return 'big';
+		} else {
+			return false;
+		}
+	}
+
+	function import_from_reader($reader) {
+		$reader->setEndian('little');
+		$endian = MO::get_byteorder($reader->readint32());
+		if (false === $endian) {
+			return false;
+		}
+		$reader->setEndian($endian);
+
+		$revision = $reader->readint32();
+		$total = $reader->readint32();
+		// get addresses of array of lenghts and offsets for original string and translations
+		$originals_lenghts_addr = $reader->readint32();
+		$translations_lenghts_addr = $reader->readint32();
+
+		$reader->seekto($originals_lenghts_addr);
+		$originals_lenghts = $reader->readint32array($total * 2); // each of 
+		$reader->seekto($translations_lenghts_addr);
+		$translations_lenghts = $reader->readint32array($total * 2);
+
+		$length = create_function('$i', 'return $i * 2 + 1;');
+		$offset = create_function('$i', 'return $i * 2 + 2;');
+
+		for ($i = 0; $i < $total; ++$i) {
+			$reader->seekto($originals_lenghts[$offset($i)]);
+			$original = $reader->read($originals_lenghts[$length($i)]);
+			$reader->seekto($translations_lenghts[$offset($i)]);
+			$translation = $reader->read($translations_lenghts[$length($i)]);
+			if ('' == $original) {
+				$this->set_headers($this->make_headers($translation));
+			} else {
+				$this->add_entry($this->make_entry($original, $translation));
+			}
+		}
+		return true;
+	}
+
+	/**
+	 * @static
+	 */
+	function &make_entry($original, $translation) {
+		$args = array();
+		// look for context
+		$parts = explode(chr(4), $original);
+		if (isset($parts[1])) {
+			$original = $parts[1];
+			$args['context'] = $parts[0];
+		}
+		// look for plural original
+		$parts = explode(chr(0), $original);
+		$args['singular'] = $parts[0];
+		if (isset($parts[1])) {
+			$args['plural'] = $parts[1];
+		}
+		// plural translations are also separated by \0
+		$args['translations'] = explode(chr(0), $translation);
+		$entry = & new Translation_Entry($args);
+		return $entry;
+	}
+
+	function select_plural_form($count) {
+		return $this->gettext_select_plural_form($count);
+	}
+
+	function get_plural_forms_count() {
+		return $this->_nplurals;
+	}
+
+
+}
+?>