diff options
Diffstat (limited to 'modules/getid3/module.lib.iconv_replacement.php')
| -rw-r--r-- | modules/getid3/module.lib.iconv_replacement.php | 415 |
1 files changed, 415 insertions, 0 deletions
diff --git a/modules/getid3/module.lib.iconv_replacement.php b/modules/getid3/module.lib.iconv_replacement.php new file mode 100644 index 00000000..d6f935e8 --- /dev/null +++ b/modules/getid3/module.lib.iconv_replacement.php @@ -0,0 +1,415 @@ +<?php +// +----------------------------------------------------------------------+ +// | PHP version 5 | +// +----------------------------------------------------------------------+ +// | Copyright (c) 2002-2006 James Heinrich, Allan Hansen | +// +----------------------------------------------------------------------+ +// | This source file is subject to version 2 of the GPL license, | +// | that is bundled with this package in the file license.txt and is | +// | available through the world-wide-web at the following url: | +// | http://www.gnu.org/copyleft/gpl.html | +// +----------------------------------------------------------------------+ +// | getID3() - http://getid3.sourceforge.net or http://www.getid3.org | +// +----------------------------------------------------------------------+ +// | Authors: James Heinrich <infoØgetid3*org> | +// | Allan Hansen <ahØartemis*dk> | +// +----------------------------------------------------------------------+ +// | module.lib.iconv_replacement.php | +// | getID3() library file. | +// | dependencies: NONE, required by getid3.php if no iconv() present. | +// +----------------------------------------------------------------------+ +// +// $Id: module.lib.iconv_replacement.php,v 1.4 2006/11/02 10:48:02 ah Exp $ + + +class getid3_iconv_replacement +{ + + public static function iconv($in_charset, $out_charset, $string) { + + if ($in_charset == $out_charset) { + return $string; + } + + static $supported_charsets = array ( + 'ISO-8859-1' => 'iso88591', + 'UTF-8' => 'utf8', + 'UTF-16BE' => 'utf16be', + 'UTF-16LE' => 'utf16le', + 'UTF-16' => 'utf16' + ); + + // Convert + $function_name = 'iconv_' . @$supported_charsets[$in_charset] . '_' . @$supported_charsets[$out_charset]; + + if (is_callable(array('getid3_iconv_replacement', $function_name))) { + return getid3_iconv_replacement::$function_name($string); + } + + // Invalid charset used + if (!@$supported_charsets[$in_charset]) { + throw new getid3_exception('PHP does not have iconv() support - cannot use ' . $in_charset . ' charset.'); + } + + if (!@$supported_charsets[$out_charset]) { + throw new getid3_exception('PHP does not have iconv() support - cannot use ' . $out_charset . ' charset.'); + } + } + + + + public static function iconv_int_utf8($charval) { + if ($charval < 128) { + // 0bbbbbbb + $newcharstring = chr($charval); + } elseif ($charval < 2048) { + // 110bbbbb 10bbbbbb + $newcharstring = chr(($charval >> 6) | 0xC0); + $newcharstring .= chr(($charval & 0x3F) | 0x80); + } elseif ($charval < 65536) { + // 1110bbbb 10bbbbbb 10bbbbbb + $newcharstring = chr(($charval >> 12) | 0xE0); + $newcharstring .= chr(($charval >> 6) | 0xC0); + $newcharstring .= chr(($charval & 0x3F) | 0x80); + } else { + // 11110bbb 10bbbbbb 10bbbbbb 10bbbbbb + $newcharstring = chr(($charval >> 18) | 0xF0); + $newcharstring .= chr(($charval >> 12) | 0xC0); + $newcharstring .= chr(($charval >> 6) | 0xC0); + $newcharstring .= chr(($charval & 0x3F) | 0x80); + } + return $newcharstring; + } + + + + // ISO-8859-1 => UTF-8 + public static function iconv_iso88591_utf8($string, $bom=false) { + if (function_exists('utf8_encode')) { + return utf8_encode($string); + } + // utf8_encode() unavailable, use getID3()'s iconv() conversions (possibly PHP is compiled without XML support) + $newcharstring = ''; + if ($bom) { + $newcharstring .= "\xEF\xBB\xBF"; + } + for ($i = 0; $i < strlen($string); $i++) { + $charval = ord($string{$i}); + $newcharstring .= getid3_iconv_replacement::iconv_int_utf8($charval); + } + return $newcharstring; + } + + + + // ISO-8859-1 => UTF-16BE + public static function iconv_iso88591_utf16be($string, $bom=false) { + $newcharstring = ''; + if ($bom) { + $newcharstring .= "\xFE\xFF"; + } + for ($i = 0; $i < strlen($string); $i++) { + $newcharstring .= "\x00".$string{$i}; + } + return $newcharstring; + } + + + + // ISO-8859-1 => UTF-16LE + public static function iconv_iso88591_utf16le($string, $bom=false) { + $newcharstring = ''; + if ($bom) { + $newcharstring .= "\xFF\xFE"; + } + for ($i = 0; $i < strlen($string); $i++) { + $newcharstring .= $string{$i}."\x00"; + } + return $newcharstring; + } + + + + // ISO-8859-1 => UTF-16 + public static function iconv_iso88591_utf16($string) { + return getid3_lib::iconv_iso88591_utf16le($string, true); + } + + + + // UTF-8 => ISO-8859-1 + public static function iconv_utf8_iso88591($string) { + if (function_exists('utf8_decode')) { + return utf8_decode($string); + } + // utf8_decode() unavailable, use getID3()'s iconv() conversions (possibly PHP is compiled without XML support) + $newcharstring = ''; + $offset = 0; + $stringlength = strlen($string); + while ($offset < $stringlength) { + if ((ord($string{$offset}) | 0x07) == 0xF7) { + // 11110bbb 10bbbbbb 10bbbbbb 10bbbbbb + $charval = ((ord($string{($offset + 0)}) & 0x07) << 18) & + ((ord($string{($offset + 1)}) & 0x3F) << 12) & + ((ord($string{($offset + 2)}) & 0x3F) << 6) & + (ord($string{($offset + 3)}) & 0x3F); + $offset += 4; + } elseif ((ord($string{$offset}) | 0x0F) == 0xEF) { + // 1110bbbb 10bbbbbb 10bbbbbb + $charval = ((ord($string{($offset + 0)}) & 0x0F) << 12) & + ((ord($string{($offset + 1)}) & 0x3F) << 6) & + (ord($string{($offset + 2)}) & 0x3F); + $offset += 3; + } elseif ((ord($string{$offset}) | 0x1F) == 0xDF) { + // 110bbbbb 10bbbbbb + $charval = ((ord($string{($offset + 0)}) & 0x1F) << 6) & + (ord($string{($offset + 1)}) & 0x3F); + $offset += 2; + } elseif ((ord($string{$offset}) | 0x7F) == 0x7F) { + // 0bbbbbbb + $charval = ord($string{$offset}); + $offset += 1; + } else { + // error? throw some kind of warning here? + $charval = false; + $offset += 1; + } + if ($charval !== false) { + $newcharstring .= (($charval < 256) ? chr($charval) : '?'); + } + } + return $newcharstring; + } + + + + // UTF-8 => UTF-16BE + public static function iconv_utf8_utf16be($string, $bom=false) { + $newcharstring = ''; + if ($bom) { + $newcharstring .= "\xFE\xFF"; + } + $offset = 0; + $stringlength = strlen($string); + while ($offset < $stringlength) { + if ((ord($string{$offset}) | 0x07) == 0xF7) { + // 11110bbb 10bbbbbb 10bbbbbb 10bbbbbb + $charval = ((ord($string{($offset + 0)}) & 0x07) << 18) & + ((ord($string{($offset + 1)}) & 0x3F) << 12) & + ((ord($string{($offset + 2)}) & 0x3F) << 6) & + (ord($string{($offset + 3)}) & 0x3F); + $offset += 4; + } elseif ((ord($string{$offset}) | 0x0F) == 0xEF) { + // 1110bbbb 10bbbbbb 10bbbbbb + $charval = ((ord($string{($offset + 0)}) & 0x0F) << 12) & + ((ord($string{($offset + 1)}) & 0x3F) << 6) & + (ord($string{($offset + 2)}) & 0x3F); + $offset += 3; + } elseif ((ord($string{$offset}) | 0x1F) == 0xDF) { + // 110bbbbb 10bbbbbb + $charval = ((ord($string{($offset + 0)}) & 0x1F) << 6) & + (ord($string{($offset + 1)}) & 0x3F); + $offset += 2; + } elseif ((ord($string{$offset}) | 0x7F) == 0x7F) { + // 0bbbbbbb + $charval = ord($string{$offset}); + $offset += 1; + } else { + // error? throw some kind of warning here? + $charval = false; + $offset += 1; + } + if ($charval !== false) { + $newcharstring .= (($charval < 65536) ? getid3_lib::BigEndian2String($charval, 2) : "\x00".'?'); + } + } + return $newcharstring; + } + + + + // UTF-8 => UTF-16LE + public static function iconv_utf8_utf16le($string, $bom=false) { + $newcharstring = ''; + if ($bom) { + $newcharstring .= "\xFF\xFE"; + } + $offset = 0; + $stringlength = strlen($string); + while ($offset < $stringlength) { + if ((ord($string{$offset}) | 0x07) == 0xF7) { + // 11110bbb 10bbbbbb 10bbbbbb 10bbbbbb + $charval = ((ord($string{($offset + 0)}) & 0x07) << 18) & + ((ord($string{($offset + 1)}) & 0x3F) << 12) & + ((ord($string{($offset + 2)}) & 0x3F) << 6) & + (ord($string{($offset + 3)}) & 0x3F); + $offset += 4; + } elseif ((ord($string{$offset}) | 0x0F) == 0xEF) { + // 1110bbbb 10bbbbbb 10bbbbbb + $charval = ((ord($string{($offset + 0)}) & 0x0F) << 12) & + ((ord($string{($offset + 1)}) & 0x3F) << 6) & + (ord($string{($offset + 2)}) & 0x3F); + $offset += 3; + } elseif ((ord($string{$offset}) | 0x1F) == 0xDF) { + // 110bbbbb 10bbbbbb + $charval = ((ord($string{($offset + 0)}) & 0x1F) << 6) & + (ord($string{($offset + 1)}) & 0x3F); + $offset += 2; + } elseif ((ord($string{$offset}) | 0x7F) == 0x7F) { + // 0bbbbbbb + $charval = ord($string{$offset}); + $offset += 1; + } else { + // error? maybe throw some warning here? + $charval = false; + $offset += 1; + } + if ($charval !== false) { + $newcharstring .= (($charval < 65536) ? getid3_lib::LittleEndian2String($charval, 2) : '?'."\x00"); + } + } + return $newcharstring; + } + + + + // UTF-8 => UTF-16 + public static function iconv_utf8_utf16($string) { + return getid3_lib::iconv_utf8_utf16le($string, true); + } + + + + // UTF-16BE => ISO-8859-1 + public static function iconv_utf16be_iso88591($string) { + if (substr($string, 0, 2) == "\xFE\xFF") { + // strip BOM + $string = substr($string, 2); + } + $newcharstring = ''; + for ($i = 0; $i < strlen($string); $i += 2) { + $charval = getid3_lib::BigEndian2Int(substr($string, $i, 2)); + $newcharstring .= (($charval < 256) ? chr($charval) : '?'); + } + return $newcharstring; + } + + + + // UTF-16BE => UTF-8 + public static function iconv_utf16be_utf8($string) { + if (substr($string, 0, 2) == "\xFE\xFF") { + // strip BOM + $string = substr($string, 2); + } + $newcharstring = ''; + for ($i = 0; $i < strlen($string); $i += 2) { + $charval = getid3_lib::BigEndian2Int(substr($string, $i, 2)); + $newcharstring .= getid3_iconv_replacement::iconv_int_utf8($charval); + } + return $newcharstring; + } + + + + // UTF-16BE => UTF-16LE + public static function iconv_utf16be_utf16le($string) { + return getid3_iconv_replacement::iconv_utf8_utf16le(getid3_iconv_replacement::iconv_utf16be_utf8($string)); + } + + + + // UTF-16BE => UTF-16 + public static function iconv_utf16be_utf16($string) { + return getid3_iconv_replacement::iconv_utf8_utf16(getid3_iconv_replacement::iconv_utf16be_utf8($string)); + } + + + + // UTF-16LE => ISO-8859-1 + public static function iconv_utf16le_iso88591($string) { + if (substr($string, 0, 2) == "\xFF\xFE") { + // strip BOM + $string = substr($string, 2); + } + $newcharstring = ''; + for ($i = 0; $i < strlen($string); $i += 2) { + $charval = getid3_lib::LittleEndian2Int(substr($string, $i, 2)); + $newcharstring .= (($charval < 256) ? chr($charval) : '?'); + } + return $newcharstring; + } + + + + // UTF-16LE => UTF-8 + public static function iconv_utf16le_utf8($string) { + if (substr($string, 0, 2) == "\xFF\xFE") { + // strip BOM + $string = substr($string, 2); + } + $newcharstring = ''; + for ($i = 0; $i < strlen($string); $i += 2) { + $charval = getid3_lib::LittleEndian2Int(substr($string, $i, 2)); + $newcharstring .= getid3_iconv_replacement::iconv_int_utf8($charval); + } + return $newcharstring; + } + + + + // UTF-16LE => UTF-16BE + public static function iconv_utf16le_utf16be($string) { + return getid3_iconv_replacement::iconv_utf8_utf16be(getid3_iconv_replacement::iconv_utf16le_utf8($string)); + } + + + + // UTF-16LE => UTF-16 + public static function iconv_utf16le_utf16($string) { + return getid3_iconv_replacement::iconv_utf8_utf16(getid3_iconv_replacement::iconv_utf16le_utf8($string)); + } + + + + // UTF-16 => ISO-8859-1 + public static function iconv_utf16_iso88591($string) { + $bom = substr($string, 0, 2); + if ($bom == "\xFE\xFF") { + return getid3_lib::iconv_utf16be_iso88591(substr($string, 2)); + } elseif ($bom == "\xFF\xFE") { + return getid3_lib::iconv_utf16le_iso88591(substr($string, 2)); + } + return $string; + } + + + + // UTF-16 => UTF-8 + public static function iconv_utf16_utf8($string) { + $bom = substr($string, 0, 2); + if ($bom == "\xFE\xFF") { + return getid3_iconv_replacement::iconv_utf16be_utf8(substr($string, 2)); + } elseif ($bom == "\xFF\xFE") { + return getid3_iconv_replacement::iconv_utf16le_utf8(substr($string, 2)); + } + return $string; + } + + + + // UTF-16 => UTF-16BE + public static function iconv_utf16_utf16be($string) { + return getid3_iconv_replacement::iconv_utf8_utf16be(getid3_iconv_replacement::iconv_utf16_utf8($string)); + } + + + + // UTF-16 => UTF-16LE + public static function iconv_utf16_utf16le($string) { + return getid3_iconv_replacement::iconv_utf8_utf16le(getid3_iconv_replacement::iconv_utf16_utf8($string)); + } + +} + +?>
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