WordPress/wp-includes/pomo/mo.php

136 lines
3.5 KiB
PHP

<?php
/**
* Class for working with MO files
*
* @version $Id: mo.php 33 2009-02-16 09:33:39Z nbachiyski $
* @package pomo
* @subpackage mo
*/
require_once dirname(__FILE__) . '/translations.php';
require_once dirname(__FILE__) . '/streams.php';
class MO extends Translations {
var $_nplurals = 2;
function set_header($header, $value) {
parent::set_header($header, $value);
if ('Plural-Forms' == $header)
$this->_gettext_select_plural_form = $this->_make_gettext_select_plural_form($value);
}
/**
* 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 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_lo_addr = $reader->readint32();
$translations_lo_addr = $reader->readint32();
$reader->seekto($originals_lo_addr);
$originals_lo = $reader->readint32array($total * 2); // each of
$reader->seekto($translations_lo_addr);
$translations_lo = $reader->readint32array($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_lo[$offset($i)]);
$original = $reader->read($originals_lo[$length($i)]);
$reader->seekto($translations_lo[$offset($i)]);
$translation = $reader->read($translations_lo[$length($i)]);
if ('' == $original) {
$this->set_headers($this->make_headers($translation));
} else {
$this->add_entry($this->make_entry($original, $translation));
}
}
return true;
}
function make_headers($translation) {
$headers = array();
$lines = explode("\n", $translation);
foreach($lines as $line) {
$parts = explode(':', $line, 2);
if (!isset($parts[1])) continue;
$headers[trim($parts[0])] = trim($parts[1]);
}
return $headers;
}
/**
* @static
*/
function &make_entry($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;
}
}
?>