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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

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:

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

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;

Nama File / Folder	Size	Action
entry.php	4.214KB	Edit File Delete File Rename
mo.php	10.463KB	Edit File Delete File Rename
po.php	15.783KB	Edit File Delete File Rename
translations.php	10.727KB	Edit File Delete File Rename