public function Analyze() { $info =& $this->getid3->info; $info['fileformat'] = 'rar'; if ($this->option_use_rar_extension === true) { if (function_exists('rar_open')) { if ($rp = rar_open($info['filenamepath'])) { $info['rar']['files'] = array(); $entries = rar_list($rp); foreach ($entries as $entry) { $info['rar']['files'] = getid3_lib::array_merge_clobber($info['rar']['files'], getid3_lib::CreateDeepArray($entry->getName(), '/', $entry->getUnpackedSize())); } rar_close($rp); return true; } else { $info['error'][] = 'failed to rar_open(' . $info['filename'] . ')'; } } else { $info['error'][] = 'RAR support does not appear to be available in this PHP installation'; } } else { $info['error'][] = 'PHP-RAR processing has been disabled (set $getid3_rar->option_use_rar_extension=true to enable)'; } return false; }
static function array_merge_clobber($array1, $array2) { // written by kcØhireability*com // taken from http://www.php.net/manual/en/function.array-merge-recursive.php if (!is_array($array1) || !is_array($array2)) { return false; } $newarray = $array1; foreach ($array2 as $key => $val) { if (is_array($val) && isset($newarray[$key]) && is_array($newarray[$key])) { $newarray[$key] = getid3_lib::array_merge_clobber($newarray[$key], $val); } else { $newarray[$key] = $val; } } return $newarray; }
function ParseDirectoryRecord(&$fd, $directorydata, &$ThisFileInfo) { if (isset($ThisFileInfo['iso']['supplementary_volume_descriptor'])) { $TextEncoding = 'UTF-16BE'; // Big-Endian Unicode } else { $TextEncoding = 'ISO-8859-1'; // Latin-1 } fseek($fd, $directorydata['location_bytes'], SEEK_SET); $DirectoryRecordData = fread($fd, 1); while (ord($DirectoryRecordData[0]) > 33) { $DirectoryRecordData .= fread($fd, ord($DirectoryRecordData[0]) - 1); $ThisDirectoryRecord['raw']['length'] = getid3_lib::LittleEndian2Int(substr($DirectoryRecordData, 0, 1)); $ThisDirectoryRecord['raw']['extended_attribute_length'] = getid3_lib::LittleEndian2Int(substr($DirectoryRecordData, 1, 1)); $ThisDirectoryRecord['raw']['offset_logical'] = getid3_lib::LittleEndian2Int(substr($DirectoryRecordData, 2, 4)); $ThisDirectoryRecord['raw']['filesize'] = getid3_lib::LittleEndian2Int(substr($DirectoryRecordData, 10, 4)); $ThisDirectoryRecord['raw']['recording_date_time'] = substr($DirectoryRecordData, 18, 7); $ThisDirectoryRecord['raw']['file_flags'] = getid3_lib::LittleEndian2Int(substr($DirectoryRecordData, 25, 1)); $ThisDirectoryRecord['raw']['file_unit_size'] = getid3_lib::LittleEndian2Int(substr($DirectoryRecordData, 26, 1)); $ThisDirectoryRecord['raw']['interleave_gap_size'] = getid3_lib::LittleEndian2Int(substr($DirectoryRecordData, 27, 1)); $ThisDirectoryRecord['raw']['volume_sequence_number'] = getid3_lib::LittleEndian2Int(substr($DirectoryRecordData, 28, 2)); $ThisDirectoryRecord['raw']['file_identifier_length'] = getid3_lib::LittleEndian2Int(substr($DirectoryRecordData, 32, 1)); $ThisDirectoryRecord['raw']['file_identifier'] = substr($DirectoryRecordData, 33, $ThisDirectoryRecord['raw']['file_identifier_length']); $ThisDirectoryRecord['file_identifier_ascii'] = getid3_lib::iconv_fallback($TextEncoding, $ThisFileInfo['encoding'], $ThisDirectoryRecord['raw']['file_identifier']); $ThisDirectoryRecord['filesize'] = $ThisDirectoryRecord['raw']['filesize']; $ThisDirectoryRecord['offset_bytes'] = $ThisDirectoryRecord['raw']['offset_logical'] * 2048; $ThisDirectoryRecord['file_flags']['hidden'] = (bool) ($ThisDirectoryRecord['raw']['file_flags'] & 0x1); $ThisDirectoryRecord['file_flags']['directory'] = (bool) ($ThisDirectoryRecord['raw']['file_flags'] & 0x2); $ThisDirectoryRecord['file_flags']['associated'] = (bool) ($ThisDirectoryRecord['raw']['file_flags'] & 0x4); $ThisDirectoryRecord['file_flags']['extended'] = (bool) ($ThisDirectoryRecord['raw']['file_flags'] & 0x8); $ThisDirectoryRecord['file_flags']['permissions'] = (bool) ($ThisDirectoryRecord['raw']['file_flags'] & 0x10); $ThisDirectoryRecord['file_flags']['multiple'] = (bool) ($ThisDirectoryRecord['raw']['file_flags'] & 0x80); $ThisDirectoryRecord['recording_timestamp'] = $this->ISOtime2UNIXtime($ThisDirectoryRecord['raw']['recording_date_time']); if ($ThisDirectoryRecord['file_flags']['directory']) { $ThisDirectoryRecord['filename'] = $directorydata['full_path']; } else { $ThisDirectoryRecord['filename'] = $directorydata['full_path'] . $this->ISOstripFilenameVersion($ThisDirectoryRecord['file_identifier_ascii']); $ThisFileInfo['iso']['files'] = getid3_lib::array_merge_clobber($ThisFileInfo['iso']['files'], getid3_lib::CreateDeepArray($ThisDirectoryRecord['filename'], '/', $ThisDirectoryRecord['filesize'])); } $DirectoryRecord[] = $ThisDirectoryRecord; $DirectoryRecordData = fread($fd, 1); } return $DirectoryRecord; }
function getid3_zip(&$fd, &$ThisFileInfo) { $ThisFileInfo['fileformat'] = 'zip'; $ThisFileInfo['zip']['encoding'] = 'ISO-8859-1'; $ThisFileInfo['zip']['files'] = array(); $ThisFileInfo['zip']['compressed_size'] = 0; $ThisFileInfo['zip']['uncompressed_size'] = 0; $ThisFileInfo['zip']['entries_count'] = 0; if ($ThisFileInfo['filesize'] < pow(2, 31)) { $EOCDsearchData = ''; $EOCDsearchCounter = 0; while ($EOCDsearchCounter++ < 512) { fseek($fd, -128 * $EOCDsearchCounter, SEEK_END); $EOCDsearchData = fread($fd, 128) . $EOCDsearchData; if (strstr($EOCDsearchData, 'PK' . "")) { $EOCDposition = strpos($EOCDsearchData, 'PK' . ""); fseek($fd, -128 * $EOCDsearchCounter + $EOCDposition, SEEK_END); $ThisFileInfo['zip']['end_central_directory'] = $this->ZIPparseEndOfCentralDirectory($fd); fseek($fd, $ThisFileInfo['zip']['end_central_directory']['directory_offset'], SEEK_SET); $ThisFileInfo['zip']['entries_count'] = 0; while ($centraldirectoryentry = $this->ZIPparseCentralDirectory($fd)) { $ThisFileInfo['zip']['central_directory'][] = $centraldirectoryentry; $ThisFileInfo['zip']['entries_count']++; $ThisFileInfo['zip']['compressed_size'] += $centraldirectoryentry['compressed_size']; $ThisFileInfo['zip']['uncompressed_size'] += $centraldirectoryentry['uncompressed_size']; if ($centraldirectoryentry['uncompressed_size'] > 0) { $ThisFileInfo['zip']['files'] = getid3_lib::array_merge_clobber($ThisFileInfo['zip']['files'], getid3_lib::CreateDeepArray($centraldirectoryentry['filename'], '/', $centraldirectoryentry['uncompressed_size'])); } } if ($ThisFileInfo['zip']['entries_count'] == 0) { $ThisFileInfo['error'][] = 'No Central Directory entries found (truncated file?)'; return false; } if (!empty($ThisFileInfo['zip']['end_central_directory']['comment'])) { $ThisFileInfo['zip']['comments']['comment'][] = $ThisFileInfo['zip']['end_central_directory']['comment']; } if (isset($ThisFileInfo['zip']['central_directory'][0]['compression_method'])) { $ThisFileInfo['zip']['compression_method'] = $ThisFileInfo['zip']['central_directory'][0]['compression_method']; } if (isset($ThisFileInfo['zip']['central_directory'][0]['flags']['compression_speed'])) { $ThisFileInfo['zip']['compression_speed'] = $ThisFileInfo['zip']['central_directory'][0]['flags']['compression_speed']; } if (isset($ThisFileInfo['zip']['compression_method']) && $ThisFileInfo['zip']['compression_method'] == 'store' && !isset($ThisFileInfo['zip']['compression_speed'])) { $ThisFileInfo['zip']['compression_speed'] = 'store'; } return true; } } } if ($this->getZIPentriesFilepointer($fd, $ThisFileInfo)) { // central directory couldn't be found and/or parsed // scan through actual file data entries, recover as much as possible from probable trucated file if ($ThisFileInfo['zip']['compressed_size'] > $ThisFileInfo['filesize'] - 46 - 22) { $ThisFileInfo['error'][] = 'Warning: Truncated file! - Total compressed file sizes (' . $ThisFileInfo['zip']['compressed_size'] . ' bytes) is greater than filesize minus Central Directory and End Of Central Directory structures (' . ($ThisFileInfo['filesize'] - 46 - 22) . ' bytes)'; } $ThisFileInfo['error'][] = 'Cannot find End Of Central Directory - returned list of files in [zip][entries] array may not be complete'; foreach ($ThisFileInfo['zip']['entries'] as $key => $valuearray) { $ThisFileInfo['zip']['files'][$valuearray['filename']] = $valuearray['uncompressed_size']; } return true; } else { unset($ThisFileInfo['zip']); $ThisFileInfo['fileformat'] = ''; $ThisFileInfo['error'][] = 'Cannot find End Of Central Directory (truncated file?)'; return false; } }
function getid3_tar(&$fd, &$ThisFileInfo) { $ThisFileInfo['fileformat'] = 'tar'; $ThisFileInfo['tar']['files'] = array(); $unpack_header = 'a100fname/a8mode/a8uid/a8gid/a12size/a12mtime/a8chksum/a1typflag/a100lnkname/a6magic/a2ver/a32uname/a32gname/a8devmaj/a8devmin/a155/prefix'; $null_512k = str_repeat("", 512); // end-of-file marker @fseek($fd, 0); while (!feof($fd)) { $buffer = fread($fd, 512); // check the block $checksum = 0; for ($i = 0; $i < 148; $i++) { $checksum += ord($buffer[$i]); } for ($i = 148; $i < 156; $i++) { $checksum += ord(' '); } for ($i = 156; $i < 512; $i++) { $checksum += ord($buffer[$i]); } $attr = unpack($unpack_header, $buffer); $name = trim(@$attr['fname']); $mode = octdec(trim(@$attr['mode'])); $uid = octdec(trim(@$attr['uid'])); $gid = octdec(trim(@$attr['gid'])); $size = octdec(trim(@$attr['size'])); $mtime = octdec(trim(@$attr['mtime'])); $chksum = octdec(trim(@$attr['chksum'])); $typflag = trim(@$attr['typflag']); $lnkname = trim(@$attr['lnkname']); $magic = trim(@$attr['magic']); $ver = trim(@$attr['ver']); $uname = trim(@$attr['uname']); $gname = trim(@$attr['gname']); $devmaj = octdec(trim(@$attr['devmaj'])); $devmin = octdec(trim(@$attr['devmin'])); $prefix = trim(@$attr['prefix']); if ($checksum == 256 && $chksum == 0) { // EOF Found break; } if ($prefix) { $name = $prefix . '/' . $name; } if (preg_match('#/$#', $name) && !$name) { $typeflag = 5; } if ($buffer == $null_512k) { // it's the end of the tar-file... break; } // Read to the next chunk fseek($fd, $size, SEEK_CUR); $diff = $size % 512; if ($diff != 0) { // Padding, throw away fseek($fd, 512 - $diff, SEEK_CUR); } // Protect against tar-files with garbage at the end if ($name == '') { break; } $ThisFileInfo['tar']['file_details'][$name] = array('name' => $name, 'mode_raw' => $mode, 'mode' => getid3_tar::display_perms($mode), 'uid' => $uid, 'gid' => $gid, 'size' => $size, 'mtime' => $mtime, 'chksum' => $chksum, 'typeflag' => getid3_tar::get_flag_type($typflag), 'linkname' => $lnkname, 'magic' => $magic, 'version' => $ver, 'uname' => $uname, 'gname' => $gname, 'devmajor' => $devmaj, 'devminor' => $devmin); $ThisFileInfo['tar']['files'] = getid3_lib::array_merge_clobber($ThisFileInfo['tar']['files'], getid3_lib::CreateDeepArray($ThisFileInfo['tar']['file_details'][$name]['name'], '/', $size)); } return true; }
public function Analyze() { $info =& $this->getid3->info; $info['fileformat'] = 'zip'; $info['zip']['encoding'] = 'ISO-8859-1'; $info['zip']['files'] = array(); $info['zip']['compressed_size'] = 0; $info['zip']['uncompressed_size'] = 0; $info['zip']['entries_count'] = 0; if (!getid3_lib::intValueSupported($info['filesize'])) { $info['error'][] = 'File is larger than ' . round(PHP_INT_MAX / 1073741824) . 'GB, not supported by PHP'; return false; } else { $EOCDsearchData = ''; $EOCDsearchCounter = 0; while ($EOCDsearchCounter++ < 512) { $this->fseek(-128 * $EOCDsearchCounter, SEEK_END); $EOCDsearchData = $this->fread(128) . $EOCDsearchData; if (strstr($EOCDsearchData, 'PK' . "")) { $EOCDposition = strpos($EOCDsearchData, 'PK' . ""); $this->fseek(-128 * $EOCDsearchCounter + $EOCDposition, SEEK_END); $info['zip']['end_central_directory'] = $this->ZIPparseEndOfCentralDirectory(); $this->fseek($info['zip']['end_central_directory']['directory_offset']); $info['zip']['entries_count'] = 0; while ($centraldirectoryentry = $this->ZIPparseCentralDirectory($this->getid3->fp)) { $info['zip']['central_directory'][] = $centraldirectoryentry; $info['zip']['entries_count']++; $info['zip']['compressed_size'] += $centraldirectoryentry['compressed_size']; $info['zip']['uncompressed_size'] += $centraldirectoryentry['uncompressed_size']; //if ($centraldirectoryentry['uncompressed_size'] > 0) { zero-byte files are valid if (!empty($centraldirectoryentry['filename'])) { $info['zip']['files'] = getid3_lib::array_merge_clobber($info['zip']['files'], getid3_lib::CreateDeepArray($centraldirectoryentry['filename'], '/', $centraldirectoryentry['uncompressed_size'])); } } if ($info['zip']['entries_count'] == 0) { $info['error'][] = 'No Central Directory entries found (truncated file?)'; return false; } if (!empty($info['zip']['end_central_directory']['comment'])) { $info['zip']['comments']['comment'][] = $info['zip']['end_central_directory']['comment']; } if (isset($info['zip']['central_directory'][0]['compression_method'])) { $info['zip']['compression_method'] = $info['zip']['central_directory'][0]['compression_method']; } if (isset($info['zip']['central_directory'][0]['flags']['compression_speed'])) { $info['zip']['compression_speed'] = $info['zip']['central_directory'][0]['flags']['compression_speed']; } if (isset($info['zip']['compression_method']) && $info['zip']['compression_method'] == 'store' && !isset($info['zip']['compression_speed'])) { $info['zip']['compression_speed'] = 'store'; } // secondary check - we (should) already have all the info we NEED from the Central Directory above, but scanning each // Local File Header entry will foreach ($info['zip']['central_directory'] as $central_directory_entry) { $this->fseek($central_directory_entry['entry_offset']); if ($fileentry = $this->ZIPparseLocalFileHeader()) { $info['zip']['entries'][] = $fileentry; } else { $info['warning'][] = 'Error parsing Local File Header at offset ' . $central_directory_entry['entry_offset']; } } if (!empty($info['zip']['files']['[Content_Types].xml']) && !empty($info['zip']['files']['_rels']['.rels']) && !empty($info['zip']['files']['docProps']['app.xml']) && !empty($info['zip']['files']['docProps']['core.xml'])) { // http://technet.microsoft.com/en-us/library/cc179224.aspx $info['fileformat'] = 'zip.msoffice'; if (!empty($ThisFileInfo['zip']['files']['ppt'])) { $info['mime_type'] = 'application/vnd.openxmlformats-officedocument.presentationml.presentation'; } elseif (!empty($ThisFileInfo['zip']['files']['xl'])) { $info['mime_type'] = 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'; } elseif (!empty($ThisFileInfo['zip']['files']['word'])) { $info['mime_type'] = 'application/vnd.openxmlformats-officedocument.wordprocessingml.document'; } } return true; } } } if (!$this->getZIPentriesFilepointer()) { unset($info['zip']); $info['fileformat'] = ''; $info['error'][] = 'Cannot find End Of Central Directory (truncated file?)'; return false; } // central directory couldn't be found and/or parsed // scan through actual file data entries, recover as much as possible from probable trucated file if ($info['zip']['compressed_size'] > $info['filesize'] - 46 - 22) { $info['error'][] = 'Warning: Truncated file! - Total compressed file sizes (' . $info['zip']['compressed_size'] . ' bytes) is greater than filesize minus Central Directory and End Of Central Directory structures (' . ($info['filesize'] - 46 - 22) . ' bytes)'; } $info['error'][] = 'Cannot find End Of Central Directory - returned list of files in [zip][entries] array may not be complete'; foreach ($info['zip']['entries'] as $key => $valuearray) { $info['zip']['files'][$valuearray['filename']] = $valuearray['uncompressed_size']; } return true; }
function read_gzip($fd, &$ThisFileInfo) { $start_length = 10; $unpack_header = 'a1id1/a1id2/a1cmethod/a1flags/a4mtime/a1xflags/a1os'; //+---+---+---+---+---+---+---+---+---+---+ //|ID1|ID2|CM |FLG| MTIME |XFL|OS | //+---+---+---+---+---+---+---+---+---+---+ @fseek($fd, 0); $buffer = @fread($fd, $ThisFileInfo['filesize']); $arr_members = explode("‹", $buffer); while (true) { $is_wrong_members = false; $num_members = intval(count($arr_members)); for ($i = 0; $i < $num_members; $i++) { if (strlen($arr_members[$i]) == 0) { continue; } $buf = "‹" . $arr_members[$i]; $attr = unpack($unpack_header, substr($buf, 0, $start_length)); if (!$this->get_os_type(ord($attr['os']))) { // Merge member with previous if wrong OS type $arr_members[$i - 1] .= $buf; $arr_members[$i] = ''; $is_wrong_members = true; continue; } } if (!$is_wrong_members) { break; } } $ThisFileInfo['gzip']['files'] = array(); $fpointer = 0; $idx = 0; for ($i = 0; $i < $num_members; $i++) { if (strlen($arr_members[$i]) == 0) { continue; } $thisThisFileInfo =& $ThisFileInfo['gzip']['member_header'][++$idx]; $buff = "‹" . $arr_members[$i]; $attr = unpack($unpack_header, substr($buff, 0, $start_length)); $thisThisFileInfo['filemtime'] = getid3_lib::LittleEndian2Int($attr['mtime']); $thisThisFileInfo['raw']['id1'] = ord($attr['cmethod']); $thisThisFileInfo['raw']['id2'] = ord($attr['cmethod']); $thisThisFileInfo['raw']['cmethod'] = ord($attr['cmethod']); $thisThisFileInfo['raw']['os'] = ord($attr['os']); $thisThisFileInfo['raw']['xflags'] = ord($attr['xflags']); $thisThisFileInfo['raw']['flags'] = ord($attr['flags']); $thisThisFileInfo['flags']['crc16'] = (bool) ($thisThisFileInfo['raw']['flags'] & 0x2); $thisThisFileInfo['flags']['extra'] = (bool) ($thisThisFileInfo['raw']['flags'] & 0x4); $thisThisFileInfo['flags']['filename'] = (bool) ($thisThisFileInfo['raw']['flags'] & 0x8); $thisThisFileInfo['flags']['comment'] = (bool) ($thisThisFileInfo['raw']['flags'] & 0x10); $thisThisFileInfo['compression'] = $this->get_xflag_type($thisThisFileInfo['raw']['xflags']); $thisThisFileInfo['os'] = $this->get_os_type($thisThisFileInfo['raw']['os']); if (!$thisThisFileInfo['os']) { $ThisFileInfo['error'][] = 'Read error on gzip file'; return false; } $fpointer = 10; $arr_xsubfield = array(); // bit 2 - FLG.FEXTRA //+---+---+=================================+ //| XLEN |...XLEN bytes of "extra field"...| //+---+---+=================================+ if ($thisThisFileInfo['flags']['extra']) { $w_xlen = substr($buff, $fpointer, 2); $xlen = getid3_lib::LittleEndian2Int($w_xlen); $fpointer += 2; $thisThisFileInfo['raw']['xfield'] = substr($buff, $fpointer, $xlen); // Extra SubFields //+---+---+---+---+==================================+ //|SI1|SI2| LEN |... LEN bytes of subfield data ...| //+---+---+---+---+==================================+ $idx = 0; while (true) { if ($idx >= $xlen) { break; } $si1 = ord(substr($buff, $fpointer + $idx++, 1)); $si2 = ord(substr($buff, $fpointer + $idx++, 1)); if ($si1 == 0x41 && $si2 == 0x70) { $w_xsublen = substr($buff, $fpointer + $idx, 2); $xsublen = getid3_lib::LittleEndian2Int($w_xsublen); $idx += 2; $arr_xsubfield[] = substr($buff, $fpointer + $idx, $xsublen); $idx += $xsublen; } else { break; } } $fpointer += $xlen; } // bit 3 - FLG.FNAME //+=========================================+ //|...original file name, zero-terminated...| //+=========================================+ // GZIP files may have only one file, with no filename, so assume original filename is current filename without .gz $thisThisFileInfo['filename'] = preg_replace('{.gz$}i', '', $ThisFileInfo['filename']); if ($thisThisFileInfo['flags']['filename']) { while (true) { if (ord($buff[$fpointer]) == 0) { $fpointer++; break; } $thisThisFileInfo['filename'] .= $buff[$fpointer]; $fpointer++; } } // bit 4 - FLG.FCOMMENT //+===================================+ //|...file comment, zero-terminated...| //+===================================+ if ($thisThisFileInfo['flags']['comment']) { while (true) { if (ord($buff[$fpointer]) == 0) { $fpointer++; break; } $thisThisFileInfo['comment'] .= $buff[$fpointer]; $fpointer++; } } // bit 1 - FLG.FHCRC //+---+---+ //| CRC16 | //+---+---+ if ($thisThisFileInfo['flags']['crc16']) { $w_crc = substr($buff, $fpointer, 2); $thisThisFileInfo['crc16'] = getid3_lib::LittleEndian2Int($w_crc); $fpointer += 2; } // bit 0 - FLG.FTEXT //if ($thisThisFileInfo['raw']['flags'] & 0x01) { // Ignored... //} // bits 5, 6, 7 - reserved $thisThisFileInfo['crc32'] = getid3_lib::LittleEndian2Int(substr($buff, strlen($buff) - 8, 4)); $thisThisFileInfo['filesize'] = getid3_lib::LittleEndian2Int(substr($buff, strlen($buff) - 4)); $ThisFileInfo['gzip']['files'] = getid3_lib::array_merge_clobber($ThisFileInfo['gzip']['files'], getid3_lib::CreateDeepArray($thisThisFileInfo['filename'], '/', $thisThisFileInfo['filesize'])); if ($this->option_gzip_parse_contents) { // Try to inflate GZip $csize = 0; $inflated = ''; $chkcrc32 = ''; if (function_exists('gzinflate')) { $cdata = substr($buff, $fpointer); $cdata = substr($cdata, 0, strlen($cdata) - 8); $csize = strlen($cdata); $inflated = gzinflate($cdata); // Calculate CRC32 for inflated content $thisThisFileInfo['crc32_valid'] = (bool) (sprintf('%u', crc32($inflated)) == $thisThisFileInfo['crc32']); // determine format $formattest = substr($inflated, 0, 32774); $newgetID3 = new getID3(); $determined_format = $newgetID3->GetFileFormat($formattest); unset($newgetID3); // file format is determined switch (@$determined_format['module']) { case 'tar': // view TAR-file info if (file_exists(GETID3_INCLUDEPATH . $determined_format['include']) && @(include_once GETID3_INCLUDEPATH . $determined_format['include'])) { getid3_tar::read_tar($inflated, $ThisFileInfo['gzip']['member_header'][$idx]); } break; case '': default: // unknown or unhandled format break; } } } } return true; }