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Edit File : mo.php \| Size : 9.32 KB
<?php /** * 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( 'MO', false ) ) : class MO extends Gettext_Translations { /* * Number of plural forms. * * @var int / public $_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. / public function import_from_file( $filename ) { $reader = new POMO_FileReader( $filename ); if ( ! $reader->is_resource() ) { return false; } $this->filename = (string) $filename; return $this->import_from_reader( $reader ); } /* * @param string $filename * @return bool / public 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 / public 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 Translation_Entry $entry * @return bool / public 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 / public 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_lengths_addr = 28; $translations_lengths_addr = $originals_lengths_addr + 8 $total; $size_of_hash = 0; $hash_addr = $translations_lengths_addr + 8 * $total; $current_addr = $hash_addr; fwrite( $fh, pack( 'V', $magic, $revision, $total, $originals_lengths_addr, $translations_lengths_addr, $size_of_hash, $hash_addr ) ); fseek( $fh, $originals_lengths_addr ); // Headers' msgid is an empty string. fwrite( $fh, pack( 'VV', 0, $current_addr ) ); ++$current_addr; $originals_table = "\0"; $reader = new POMO_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 Translation_Entry $entry * @return string / public 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 Translation_Entry $entry * @return string / public function export_translations( $entry ) { // TODO: Warnings for control characters. return $entry->is_plural ? implode( "\0", $entry->translations ) : $entry->translations[0]; } /* * @return string / public function export_headers() { $exported = ''; foreach ( $this->headers as $header => $value ) { $exported .= "$header: $value\n"; } return $exported; } /* * @param int $magic * @return string\|false / public 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 POMO_FileReader $reader * @return bool True if the import was successful, otherwise false. / public function import_from_reader( $reader ) { $endian_string = MO::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_lengths_addr/{$endian}translations_lengths_addr/{$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_lengths_addr'] ); // Read originals' indices. $originals_lengths_length = $header['translations_lengths_addr'] - $header['originals_lengths_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_lengths_length = $header['hash_addr'] - $header['translations_lengths_addr']; if ( $translations_lengths_length !== $header['total'] * 8 ) { return false; } $translations = $reader->read( $translations_lengths_length ); if ( $reader->strlen( $translations ) !== $translations_lengths_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 Translation_Entry Entry instance. / public function &make_entry( $original, $translation ) { $entry = new Translation_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 / public function select_plural_form( $count ) { return $this->gettext_select_plural_form( $count ); } /* * @return int */ public function get_plural_forms_count() { return $this->_nplurals; } } endif; Back

Edit File : mo.php | Size : 9.32 KB

<?php
/**
 * 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( 'MO', false ) ) :
	class MO extends Gettext_Translations {

/**
		 * Number of plural forms.
		 *
		 * @var int
		 */
		public $_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.
		 */
		public function import_from_file( $filename ) {
			$reader = new POMO_FileReader( $filename );

if ( ! $reader->is_resource() ) {
				return false;
			}

$this->filename = (string) $filename;

return $this->import_from_reader( $reader );
		}

/**
		 * @param string $filename
		 * @return bool
		 */
		public 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
		 */
		public 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 Translation_Entry $entry
		 * @return bool
		 */
		public 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
		 */
		public 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_lengths_addr    = 28;
			$translations_lengths_addr = $originals_lengths_addr + 8 * $total;
			$size_of_hash              = 0;
			$hash_addr                 = $translations_lengths_addr + 8 * $total;
			$current_addr              = $hash_addr;
			fwrite(
				$fh,
				pack(
					'V*',
					$magic,
					$revision,
					$total,
					$originals_lengths_addr,
					$translations_lengths_addr,
					$size_of_hash,
					$hash_addr
				)
			);
			fseek( $fh, $originals_lengths_addr );

// Headers' msgid is an empty string.
			fwrite( $fh, pack( 'VV', 0, $current_addr ) );
			++$current_addr;
			$originals_table = "\0";

$reader = new POMO_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 Translation_Entry $entry
		 * @return string
		 */
		public 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 Translation_Entry $entry
		 * @return string
		 */
		public function export_translations( $entry ) {
			// TODO: Warnings for control characters.
			return $entry->is_plural ? implode( "\0", $entry->translations ) : $entry->translations[0];
		}

/**
		 * @return string
		 */
		public function export_headers() {
			$exported = '';
			foreach ( $this->headers as $header => $value ) {
				$exported .= "$header: $value\n";
			}
			return $exported;
		}

/**
		 * @param int $magic
		 * @return string|false
		 */
		public 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 POMO_FileReader $reader
		 * @return bool True if the import was successful, otherwise false.
		 */
		public function import_from_reader( $reader ) {
			$endian_string = MO::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_lengths_addr/{$endian}translations_lengths_addr/{$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_lengths_addr'] );

// Read originals' indices.
			$originals_lengths_length = $header['translations_lengths_addr'] - $header['originals_lengths_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_lengths_length = $header['hash_addr'] - $header['translations_lengths_addr'];
			if ( $translations_lengths_length !== $header['total'] * 8 ) {
				return false;
			}

$translations = $reader->read( $translations_lengths_length );
			if ( $reader->strlen( $translations ) !== $translations_lengths_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 Translation_Entry Entry instance.
		 */
		public function &make_entry( $original, $translation ) {
			$entry = new Translation_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
		 */
		public function select_plural_form( $count ) {
			return $this->gettext_select_plural_form( $count );
		}

/**
		 * @return int
		 */
		public function get_plural_forms_count() {
			return $this->_nplurals;
		}
	}
endif;

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