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<?php /** * This is a modified version of the POMO library included with WordPress. The WordPress copyright has been included * for attribution. */ /* WordPress - Web publishing software Copyright 2011-2020 by the contributors This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA This program incorporates work covered by the following copyright and permission notices: b2 is (c) 2001, 2002 Michel Valdrighi - https://cafelog.com Wherever third party code has been used, credit has been given in the code's comments. b2 is released under the GPL and WordPress - Web publishing software Copyright 2003-2010 by the contributors WordPress is released under the GPL */ /** * Class for working with MO files * * @version $Id: mo.php 1157 2015-11-20 04:30:11Z dd32 $ * @package pomo * @subpackage mo */ require_once __DIR__ . '/translations.php'; require_once __DIR__ . '/streams.php'; if ( ! class_exists( 'wfMO', false ) ) : class wfMO extends wfGettext_Translations { var $_nplurals = 2; /** * Loaded MO file. * * @var string */ private $filename = ''; /** * Returns the loaded MO file. * * @return string The loaded MO file. */ public function get_filename() { return $this->filename; } /** * Fills up with the entries from MO file $filename * * @param string $filename MO file to load * @return bool True if the import from file was successful, otherwise false. */ function import_from_file( $filename ) { $reader = new wfPOMO_FileReader( $filename ); if ( ! $reader->is_resource() ) { return false; } $this->filename = (string) $filename; return $this->import_from_reader( $reader ); } /** * @param string $filename * @return bool */ function export_to_file( $filename ) { $fh = fopen( $filename, 'wb' ); if ( ! $fh ) { return false; } $res = $this->export_to_file_handle( $fh ); fclose( $fh ); return $res; } /** * @return string|false */ 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 ); } /** * @param wfTranslation_Entry $entry * @return bool */ function is_entry_good_for_export( $entry ) { if ( empty( $entry->translations ) ) { return false; } if ( ! array_filter( $entry->translations ) ) { return false; } return true; } /** * @param resource $fh * @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; $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 = "\0"; $reader = new wfPOMO_Reader(); foreach ( $entries as $entry ) { $originals_table .= $this->export_original( $entry ) . "\0"; $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', $reader->strlen( $exported_headers ), $current_addr ) ); $current_addr += strlen( $exported_headers ) + 1; $translations_table = $exported_headers . "\0"; foreach ( $entries as $entry ) { $translations_table .= $this->export_translations( $entry ) . "\0"; $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 ); return true; } /** * @param wfTranslation_Entry $entry * @return string */ function export_original( $entry ) { // TODO: Warnings for control characters. $exported = $entry->singular; if ( $entry->is_plural ) { $exported .= "\0" . $entry->plural; } if ( $entry->context ) { $exported = $entry->context . "\4" . $exported; } return $exported; } /** * @param wfTranslation_Entry $entry * @return string */ function export_translations( $entry ) { // TODO: Warnings for control characters. return $entry->is_plural ? implode( "\0", $entry->translations ) : $entry->translations[0]; } /** * @return string */ function export_headers() { $exported = ''; foreach ( $this->headers as $header => $value ) { $exported .= "$header: $value\n"; } return $exported; } /** * @param int $magic * @return string|false */ 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'; } elseif ( $magic_big == $magic ) { return 'big'; } else { return false; } } /** * @param wfPOMO_FileReader $reader * @return bool True if the import was successful, otherwise false. */ function import_from_reader( $reader ) { $endian_string = wfMO::get_byteorder( $reader->readint32() ); if ( false === $endian_string ) { return false; } $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 ( 0 != $header['revision'] ) { 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 { $entry = &$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 * @return wfTranslation_Entry Entry instance. */ function &make_entry( $original, $translation ) { $entry = new wfTranslation_Entry(); // Look for context, separated by \4. $parts = explode( "\4", $original ); if ( isset( $parts[1] ) ) { $original = $parts[1]; $entry->context = $parts[0]; } // Look for plural original. $parts = explode( "\0", $original ); $entry->singular = $parts[0]; if ( isset( $parts[1] ) ) { $entry->is_plural = true; $entry->plural = $parts[1]; } // Plural translations are also separated by \0. $entry->translations = explode( "\0", $translation ); return $entry; } /** * @param int $count * @return string */ function select_plural_form( $count ) { return $this->gettext_select_plural_form( $count ); } /** * @return int */ function get_plural_forms_count() { return $this->_nplurals; } } endif;
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