クラス MO::import_from_reader()
クラス MO::import_from_reader()
定義ファイル :/blog/wp-includes/pomo/mo.php
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 | 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_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 { $entry = &$this->make_entry($original, $translation); $this->entries[$entry->key()] = &$entry; } } return true; } |