X-Git-Url: https://scripts.mit.edu/gitweb/autoinstalls/wordpress.git/blobdiff_plain/98a4d31e52bd56c908617df281730bd4ba58d110..7f1521bf193b382565eb753043c161f4cb3fcda7:/wp-includes/pomo/mo.php diff --git a/wp-includes/pomo/mo.php b/wp-includes/pomo/mo.php index 0630ef28..e8eecc19 100644 --- a/wp-includes/pomo/mo.php +++ b/wp-includes/pomo/mo.php @@ -2,7 +2,7 @@ /** * Class for working with MO files * - * @version $Id: mo.php 106 2009-04-23 19:48:22Z nbachiyski $ + * @version $Id: mo.php 718 2012-10-31 00:32:02Z nbachiyski $ * @package pomo * @subpackage mo */ @@ -10,6 +10,7 @@ require_once dirname(__FILE__) . '/translations.php'; require_once dirname(__FILE__) . '/streams.php'; +if ( !class_exists( 'MO' ) ): class MO extends Gettext_Translations { var $_nplurals = 2; @@ -20,17 +21,42 @@ class MO extends Gettext_Translations { * @param string $filename MO file to load */ function import_from_file($filename) { - $reader = new POMO_CachedIntFileReader($filename); - if (isset($reader->error)) { + $reader = new POMO_FileReader($filename); + if (!$reader->is_resource()) 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);')); + $res = $this->export_to_file_handle( $fh ); + fclose($fh); + return $res; + } + + function export() { + $tmp_fh = fopen("php://temp", 'r+'); + if ( !$tmp_fh ) return false; + $this->export_to_file_handle( $tmp_fh ); + rewind( $tmp_fh ); + return stream_get_contents( $tmp_fh ); + } + + function is_entry_good_for_export( $entry ) { + if ( empty( $entry->translations ) ) { + return false; + } + + if ( !array_filter( $entry->translations ) ) { + return false; + } + + return true; + } + + function export_to_file_handle($fh) { + $entries = array_filter( $this->entries, array( $this, 'is_entry_good_for_export' ) ); ksort($entries); $magic = 0x950412de; $revision = 0; @@ -43,36 +69,38 @@ class MO extends Gettext_Translations { fwrite($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); + $reader = new POMO_Reader(); + foreach($entries as $entry) { $originals_table .= $this->export_original($entry) . chr(0); - $length = strlen($this->export_original($entry)); + $length = $reader->strlen($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), $current_addr)); + fwrite($fh, pack('VV', $reader->strlen($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)); + $length = $reader->strlen($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); + return true; } - + function export_original($entry) { //TODO: warnings for control characters $exported = $entry->singular; @@ -80,12 +108,12 @@ class MO extends Gettext_Translations { if (!is_null($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 => $value) { @@ -95,15 +123,13 @@ class MO extends Gettext_Translations { } function get_byteorder($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; - + $magic_big = ((int) - 569244523) & 0xFFFFFFFF; if ($magic_little == $magic || $magic_little_64 == $magic) { return 'little'; } else if ($magic_big == $magic) { @@ -113,62 +139,118 @@ class MO extends Gettext_Translations { } } + /** + * @param POMO_FileReader $reader + */ function import_from_reader($reader) { - $reader->setEndian('little'); - $endian = MO::get_byteorder($reader->readint32()); - if (false === $endian) { + $endian_string = MO::get_byteorder($reader->readint32()); + if (false === $endian_string) { 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) { + $reader->setEndian($endian_string); + + $endian = ('big' == $endian_string)? 'N' : 'V'; + + $header = $reader->read(24); + if ($reader->strlen($header) != 24) + return false; + + // parse header + $header = unpack("{$endian}revision/{$endian}total/{$endian}originals_lenghts_addr/{$endian}translations_lenghts_addr/{$endian}hash_length/{$endian}hash_addr", $header); + if (!is_array($header)) + return false; + + // support revision 0 of MO format specs, only + if ( $header['revision'] != 0 ) { + return false; + } + + // seek to data blocks + $reader->seekto( $header['originals_lenghts_addr'] ); + + // read originals' indices + $originals_lengths_length = $header['translations_lenghts_addr'] - $header['originals_lenghts_addr']; + if ( $originals_lengths_length != $header['total'] * 8 ) { + return false; + } + + $originals = $reader->read($originals_lengths_length); + if ( $reader->strlen( $originals ) != $originals_lengths_length ) { + return false; + } + + // read translations' indices + $translations_lenghts_length = $header['hash_addr'] - $header['translations_lenghts_addr']; + if ( $translations_lenghts_length != $header['total'] * 8 ) { + return false; + } + + $translations = $reader->read($translations_lenghts_length); + if ( $reader->strlen( $translations ) != $translations_lenghts_length ) { + return false; + } + + // transform raw data into set of indices + $originals = $reader->str_split( $originals, 8 ); + $translations = $reader->str_split( $translations, 8 ); + + // skip hash table + $strings_addr = $header['hash_addr'] + $header['hash_length'] * 4; + + $reader->seekto($strings_addr); + + $strings = $reader->read_all(); + $reader->close(); + + for ( $i = 0; $i < $header['total']; $i++ ) { + $o = unpack( "{$endian}length/{$endian}pos", $originals[$i] ); + $t = unpack( "{$endian}length/{$endian}pos", $translations[$i] ); + if ( !$o || !$t ) return false; + + // adjust offset due to reading strings to separate space before + $o['pos'] -= $strings_addr; + $t['pos'] -= $strings_addr; + + $original = $reader->substr( $strings, $o['pos'], $o['length'] ); + $translation = $reader->substr( $strings, $t['pos'], $t['length'] ); + + if ('' === $original) { $this->set_headers($this->make_headers($translation)); } else { - $this->add_entry($this->make_entry($original, $translation)); + $entry = &$this->make_entry($original, $translation); + $this->entries[$entry->key()] = &$entry; } } return true; } /** + * Build a Translation_Entry from original string and translation strings, + * found in a MO file + * * @static + * @param string $original original string to translate from MO file. Might contain + * 0x04 as context separator or 0x00 as singular/plural separator + * @param string $translation translation string from MO file. Might contain + * 0x00 as a plural translations separator */ function &make_entry($original, $translation) { - $args = array(); + $entry = new Translation_Entry(); // look for context $parts = explode(chr(4), $original); if (isset($parts[1])) { $original = $parts[1]; - $args['context'] = $parts[0]; + $entry->context = $parts[0]; } // look for plural original $parts = explode(chr(0), $original); - $args['singular'] = $parts[0]; + $entry->singular = $parts[0]; if (isset($parts[1])) { - $args['plural'] = $parts[1]; + $entry->is_plural = true; + $entry->plural = $parts[1]; } // plural translations are also separated by \0 - $args['translations'] = explode(chr(0), $translation); - $entry = & new Translation_Entry($args); + $entry->translations = explode(chr(0), $translation); return $entry; } @@ -179,7 +261,5 @@ class MO extends Gettext_Translations { function get_plural_forms_count() { return $this->_nplurals; } - - } -?> +endif; \ No newline at end of file