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[feature/patchwork-utf8] Rely on mbstring, use patchwork/utf8 as fallback
This commit is contained in:
Nicolas Grekas
parent
a2300eb3aa
commit
d1a879a56c
1 changed files with 66 additions and 518 deletions
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@ -21,6 +21,13 @@ if (!defined('IN_PHPBB'))
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// Enforce ASCII only string handling
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setlocale(LC_CTYPE, 'C');
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/**
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* Setup the UTF-8 portability layer
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*/
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Patchwork\Utf8\Bootup::initUtf8Encode();
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Patchwork\Utf8\Bootup::initMbstring();
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Patchwork\Utf8\Bootup::initIntl();
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/**
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* UTF-8 tools
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*
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@ -29,544 +36,85 @@ setlocale(LC_CTYPE, 'C');
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*
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*/
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if (!extension_loaded('xml'))
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/**
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* UTF-8 aware alternative to strrpos
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* @ignore
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*/
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function utf8_strrpos($str, $needle, $offset = null)
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{
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/**
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* Implementation of PHP's native utf8_encode for people without XML support
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* This function exploits some nice things that ISO-8859-1 and UTF-8 have in common
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*
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* @param string $str ISO-8859-1 encoded data
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* @return string UTF-8 encoded data
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*/
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function utf8_encode($str)
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// Emulate behaviour of strrpos rather than raising warning
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if (empty($str))
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{
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$out = '';
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for ($i = 0, $len = strlen($str); $i < $len; $i++)
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{
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$letter = $str[$i];
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$num = ord($letter);
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if ($num < 0x80)
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{
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$out .= $letter;
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}
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else if ($num < 0xC0)
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{
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$out .= "\xC2" . $letter;
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}
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else
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{
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$out .= "\xC3" . chr($num - 64);
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}
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}
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return $out;
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return false;
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}
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/**
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* Implementation of PHP's native utf8_decode for people without XML support
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*
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* @param string $str UTF-8 encoded data
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* @return string ISO-8859-1 encoded data
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*/
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function utf8_decode($str)
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if (is_null($offset))
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{
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$pos = 0;
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$len = strlen($str);
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$ret = '';
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while ($pos < $len)
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{
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$ord = ord($str[$pos]) & 0xF0;
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if ($ord === 0xC0 || $ord === 0xD0)
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{
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$charval = ((ord($str[$pos]) & 0x1F) << 6) | (ord($str[$pos + 1]) & 0x3F);
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$pos += 2;
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$ret .= (($charval < 256) ? chr($charval) : '?');
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}
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else if ($ord === 0xE0)
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{
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$ret .= '?';
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$pos += 3;
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}
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else if ($ord === 0xF0)
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{
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$ret .= '?';
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$pos += 4;
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}
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else
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{
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$ret .= $str[$pos];
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++$pos;
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}
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}
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return $ret;
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return mb_strrpos($str, $needle);
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}
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else
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{
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return mb_strrpos($str, $needle, $offset);
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}
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}
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// mbstring is old and has it's functions around for older versions of PHP.
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// if mbstring is not loaded, we go into native mode.
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if (extension_loaded('mbstring'))
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/**
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* UTF-8 aware alternative to strpos
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* @ignore
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*/
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function utf8_strpos($str, $needle, $offset = null)
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{
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mb_internal_encoding('UTF-8');
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/**
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* UTF-8 aware alternative to strrpos
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* Find position of last occurrence of a char in a string
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*/
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/**
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* UTF-8 aware alternative to strrpos
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* @ignore
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*/
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function utf8_strrpos($str, $needle, $offset = null)
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if (is_null($offset))
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{
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// Emulate behaviour of strrpos rather than raising warning
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if (empty($str))
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{
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return false;
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}
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if (is_null($offset))
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{
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return mb_strrpos($str, $needle);
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}
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else
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{
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return mb_strrpos($str, $needle, $offset);
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}
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return mb_strpos($str, $needle);
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}
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/**
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* UTF-8 aware alternative to strpos
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* @ignore
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*/
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function utf8_strpos($str, $needle, $offset = null)
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else
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{
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if (is_null($offset))
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{
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return mb_strpos($str, $needle);
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}
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else
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{
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return mb_strpos($str, $needle, $offset);
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}
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}
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/**
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* UTF-8 aware alternative to strtolower
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* @ignore
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*/
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function utf8_strtolower($str)
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{
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return mb_strtolower($str);
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}
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/**
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* UTF-8 aware alternative to strtoupper
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* @ignore
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*/
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function utf8_strtoupper($str)
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{
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return mb_strtoupper($str);
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}
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/**
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* UTF-8 aware alternative to substr
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* @ignore
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*/
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function utf8_substr($str, $offset, $length = null)
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{
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if (is_null($length))
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{
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return mb_substr($str, $offset);
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}
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else
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{
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return mb_substr($str, $offset, $length);
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}
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}
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/**
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* Return the length (in characters) of a UTF-8 string
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* @ignore
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*/
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function utf8_strlen($text)
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{
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return mb_strlen($text, 'utf-8');
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return mb_strpos($str, $needle, $offset);
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}
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}
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else
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/**
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* UTF-8 aware alternative to strtolower
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* @ignore
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*/
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function utf8_strtolower($str)
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{
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/**
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* UTF-8 aware alternative to strrpos
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* Find position of last occurrence of a char in a string
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*
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* @author Harry Fuecks
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* @param string $str haystack
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* @param string $needle needle
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* @param integer $offset (optional) offset (from left)
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* @return mixed integer position or FALSE on failure
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*/
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function utf8_strrpos($str, $needle, $offset = null)
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return mb_strtolower($str);
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}
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/**
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* UTF-8 aware alternative to strtoupper
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* @ignore
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*/
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function utf8_strtoupper($str)
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{
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return mb_strtoupper($str);
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}
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/**
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* UTF-8 aware alternative to substr
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* @ignore
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*/
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function utf8_substr($str, $offset, $length = null)
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{
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if (is_null($length))
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{
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if (is_null($offset))
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{
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$ar = explode($needle, $str);
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if (sizeof($ar) > 1)
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{
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// Pop off the end of the string where the last match was made
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array_pop($ar);
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$str = join($needle, $ar);
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return utf8_strlen($str);
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}
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return false;
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}
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else
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{
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if (!is_int($offset))
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{
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trigger_error('utf8_strrpos expects parameter 3 to be long', E_USER_ERROR);
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return false;
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}
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$str = utf8_substr($str, $offset);
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if (false !== ($pos = utf8_strrpos($str, $needle)))
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{
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return $pos + $offset;
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}
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return false;
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}
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return mb_substr($str, $offset);
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}
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/**
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* UTF-8 aware alternative to strpos
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* Find position of first occurrence of a string
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*
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* @author Harry Fuecks
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* @param string $str haystack
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* @param string $needle needle
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* @param integer $offset offset in characters (from left)
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* @return mixed integer position or FALSE on failure
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*/
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function utf8_strpos($str, $needle, $offset = null)
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else
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{
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if (is_null($offset))
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{
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$ar = explode($needle, $str);
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if (sizeof($ar) > 1)
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{
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return utf8_strlen($ar[0]);
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}
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return false;
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}
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else
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{
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if (!is_int($offset))
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{
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trigger_error('utf8_strpos: Offset must be an integer', E_USER_ERROR);
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return false;
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}
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$str = utf8_substr($str, $offset);
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if (false !== ($pos = utf8_strpos($str, $needle)))
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{
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return $pos + $offset;
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}
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return false;
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}
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return mb_substr($str, $offset, $length);
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}
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}
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/**
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* UTF-8 aware alternative to strtolower
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* Make a string lowercase
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* Note: The concept of a characters "case" only exists is some alphabets
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* such as Latin, Greek, Cyrillic, Armenian and archaic Georgian - it does
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* not exist in the Chinese alphabet, for example. See Unicode Standard
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* Annex #21: Case Mappings
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*
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* @param string
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* @return string string in lowercase
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*/
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function utf8_strtolower($string)
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{
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static $utf8_upper_to_lower = array(
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"\xC3\x80" => "\xC3\xA0", "\xC3\x81" => "\xC3\xA1",
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"\xC3\x82" => "\xC3\xA2", "\xC3\x83" => "\xC3\xA3", "\xC3\x84" => "\xC3\xA4", "\xC3\x85" => "\xC3\xA5",
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"\xC3\x86" => "\xC3\xA6", "\xC3\x87" => "\xC3\xA7", "\xC3\x88" => "\xC3\xA8", "\xC3\x89" => "\xC3\xA9",
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"\xC3\x8A" => "\xC3\xAA", "\xC3\x8B" => "\xC3\xAB", "\xC3\x8C" => "\xC3\xAC", "\xC3\x8D" => "\xC3\xAD",
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"\xC3\x8E" => "\xC3\xAE", "\xC3\x8F" => "\xC3\xAF", "\xC3\x90" => "\xC3\xB0", "\xC3\x91" => "\xC3\xB1",
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"\xC3\x92" => "\xC3\xB2", "\xC3\x93" => "\xC3\xB3", "\xC3\x94" => "\xC3\xB4", "\xC3\x95" => "\xC3\xB5",
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"\xC3\x96" => "\xC3\xB6", "\xC3\x98" => "\xC3\xB8", "\xC3\x99" => "\xC3\xB9", "\xC3\x9A" => "\xC3\xBA",
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"\xC3\x9B" => "\xC3\xBB", "\xC3\x9C" => "\xC3\xBC", "\xC3\x9D" => "\xC3\xBD", "\xC3\x9E" => "\xC3\xBE",
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"\xC4\x80" => "\xC4\x81", "\xC4\x82" => "\xC4\x83", "\xC4\x84" => "\xC4\x85", "\xC4\x86" => "\xC4\x87",
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"\xC4\x88" => "\xC4\x89", "\xC4\x8A" => "\xC4\x8B", "\xC4\x8C" => "\xC4\x8D", "\xC4\x8E" => "\xC4\x8F",
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"\xC4\x90" => "\xC4\x91", "\xC4\x92" => "\xC4\x93", "\xC4\x96" => "\xC4\x97", "\xC4\x98" => "\xC4\x99",
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"\xC4\x9A" => "\xC4\x9B", "\xC4\x9C" => "\xC4\x9D", "\xC4\x9E" => "\xC4\x9F", "\xC4\xA0" => "\xC4\xA1",
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"\xC4\xA2" => "\xC4\xA3", "\xC4\xA4" => "\xC4\xA5", "\xC4\xA6" => "\xC4\xA7", "\xC4\xA8" => "\xC4\xA9",
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"\xC4\xAA" => "\xC4\xAB", "\xC4\xAE" => "\xC4\xAF", "\xC4\xB4" => "\xC4\xB5", "\xC4\xB6" => "\xC4\xB7",
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"\xC4\xB9" => "\xC4\xBA", "\xC4\xBB" => "\xC4\xBC", "\xC4\xBD" => "\xC4\xBE", "\xC5\x81" => "\xC5\x82",
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"\xC5\x83" => "\xC5\x84", "\xC5\x85" => "\xC5\x86", "\xC5\x87" => "\xC5\x88", "\xC5\x8A" => "\xC5\x8B",
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"\xC5\x8C" => "\xC5\x8D", "\xC5\x90" => "\xC5\x91", "\xC5\x94" => "\xC5\x95", "\xC5\x96" => "\xC5\x97",
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"\xC5\x98" => "\xC5\x99", "\xC5\x9A" => "\xC5\x9B", "\xC5\x9C" => "\xC5\x9D", "\xC5\x9E" => "\xC5\x9F",
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"\xC5\xA0" => "\xC5\xA1", "\xC5\xA2" => "\xC5\xA3", "\xC5\xA4" => "\xC5\xA5", "\xC5\xA6" => "\xC5\xA7",
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"\xC5\xA8" => "\xC5\xA9", "\xC5\xAA" => "\xC5\xAB", "\xC5\xAC" => "\xC5\xAD", "\xC5\xAE" => "\xC5\xAF",
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"\xC5\xB0" => "\xC5\xB1", "\xC5\xB2" => "\xC5\xB3", "\xC5\xB4" => "\xC5\xB5", "\xC5\xB6" => "\xC5\xB7",
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"\xC5\xB8" => "\xC3\xBF", "\xC5\xB9" => "\xC5\xBA", "\xC5\xBB" => "\xC5\xBC", "\xC5\xBD" => "\xC5\xBE",
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"\xC6\xA0" => "\xC6\xA1", "\xC6\xAF" => "\xC6\xB0", "\xC8\x98" => "\xC8\x99", "\xC8\x9A" => "\xC8\x9B",
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"\xCE\x86" => "\xCE\xAC", "\xCE\x88" => "\xCE\xAD", "\xCE\x89" => "\xCE\xAE", "\xCE\x8A" => "\xCE\xAF",
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"\xCE\x8C" => "\xCF\x8C", "\xCE\x8E" => "\xCF\x8D", "\xCE\x8F" => "\xCF\x8E", "\xCE\x91" => "\xCE\xB1",
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"\xCE\x92" => "\xCE\xB2", "\xCE\x93" => "\xCE\xB3", "\xCE\x94" => "\xCE\xB4", "\xCE\x95" => "\xCE\xB5",
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"\xCE\x96" => "\xCE\xB6", "\xCE\x97" => "\xCE\xB7", "\xCE\x98" => "\xCE\xB8", "\xCE\x99" => "\xCE\xB9",
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"\xCE\x9A" => "\xCE\xBA", "\xCE\x9B" => "\xCE\xBB", "\xCE\x9C" => "\xCE\xBC", "\xCE\x9D" => "\xCE\xBD",
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"\xCE\x9E" => "\xCE\xBE", "\xCE\x9F" => "\xCE\xBF", "\xCE\xA0" => "\xCF\x80", "\xCE\xA1" => "\xCF\x81",
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"\xCE\xA3" => "\xCF\x83", "\xCE\xA4" => "\xCF\x84", "\xCE\xA5" => "\xCF\x85", "\xCE\xA6" => "\xCF\x86",
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"\xCE\xA7" => "\xCF\x87", "\xCE\xA8" => "\xCF\x88", "\xCE\xA9" => "\xCF\x89", "\xCE\xAA" => "\xCF\x8A",
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"\xCE\xAB" => "\xCF\x8B", "\xD0\x81" => "\xD1\x91", "\xD0\x82" => "\xD1\x92", "\xD0\x83" => "\xD1\x93",
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"\xD0\x84" => "\xD1\x94", "\xD0\x85" => "\xD1\x95", "\xD0\x86" => "\xD1\x96", "\xD0\x87" => "\xD1\x97",
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"\xD0\x88" => "\xD1\x98", "\xD0\x89" => "\xD1\x99", "\xD0\x8A" => "\xD1\x9A", "\xD0\x8B" => "\xD1\x9B",
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"\xD0\x8C" => "\xD1\x9C", "\xD0\x8E" => "\xD1\x9E", "\xD0\x8F" => "\xD1\x9F", "\xD0\x90" => "\xD0\xB0",
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"\xD0\x91" => "\xD0\xB1", "\xD0\x92" => "\xD0\xB2", "\xD0\x93" => "\xD0\xB3", "\xD0\x94" => "\xD0\xB4",
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"\xD0\x95" => "\xD0\xB5", "\xD0\x96" => "\xD0\xB6", "\xD0\x97" => "\xD0\xB7", "\xD0\x98" => "\xD0\xB8",
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"\xD0\x99" => "\xD0\xB9", "\xD0\x9A" => "\xD0\xBA", "\xD0\x9B" => "\xD0\xBB", "\xD0\x9C" => "\xD0\xBC",
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"\xD0\x9D" => "\xD0\xBD", "\xD0\x9E" => "\xD0\xBE", "\xD0\x9F" => "\xD0\xBF", "\xD0\xA0" => "\xD1\x80",
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"\xD0\xA1" => "\xD1\x81", "\xD0\xA2" => "\xD1\x82", "\xD0\xA3" => "\xD1\x83", "\xD0\xA4" => "\xD1\x84",
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"\xD0\xA5" => "\xD1\x85", "\xD0\xA6" => "\xD1\x86", "\xD0\xA7" => "\xD1\x87", "\xD0\xA8" => "\xD1\x88",
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"\xD0\xA9" => "\xD1\x89", "\xD0\xAA" => "\xD1\x8A", "\xD0\xAB" => "\xD1\x8B", "\xD0\xAC" => "\xD1\x8C",
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"\xD0\xAD" => "\xD1\x8D", "\xD0\xAE" => "\xD1\x8E", "\xD0\xAF" => "\xD1\x8F", "\xD2\x90" => "\xD2\x91",
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"\xE1\xB8\x82" => "\xE1\xB8\x83", "\xE1\xB8\x8A" => "\xE1\xB8\x8B", "\xE1\xB8\x9E" => "\xE1\xB8\x9F", "\xE1\xB9\x80" => "\xE1\xB9\x81",
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"\xE1\xB9\x96" => "\xE1\xB9\x97", "\xE1\xB9\xA0" => "\xE1\xB9\xA1", "\xE1\xB9\xAA" => "\xE1\xB9\xAB", "\xE1\xBA\x80" => "\xE1\xBA\x81",
|
||||
"\xE1\xBA\x82" => "\xE1\xBA\x83", "\xE1\xBA\x84" => "\xE1\xBA\x85", "\xE1\xBB\xB2" => "\xE1\xBB\xB3"
|
||||
);
|
||||
|
||||
return strtr(strtolower($string), $utf8_upper_to_lower);
|
||||
}
|
||||
|
||||
/**
|
||||
* UTF-8 aware alternative to strtoupper
|
||||
* Make a string uppercase
|
||||
* Note: The concept of a characters "case" only exists is some alphabets
|
||||
* such as Latin, Greek, Cyrillic, Armenian and archaic Georgian - it does
|
||||
* not exist in the Chinese alphabet, for example. See Unicode Standard
|
||||
* Annex #21: Case Mappings
|
||||
*
|
||||
* @param string
|
||||
* @return string string in uppercase
|
||||
*/
|
||||
function utf8_strtoupper($string)
|
||||
{
|
||||
static $utf8_lower_to_upper = array(
|
||||
"\xC3\xA0" => "\xC3\x80", "\xC3\xA1" => "\xC3\x81",
|
||||
"\xC3\xA2" => "\xC3\x82", "\xC3\xA3" => "\xC3\x83", "\xC3\xA4" => "\xC3\x84", "\xC3\xA5" => "\xC3\x85",
|
||||
"\xC3\xA6" => "\xC3\x86", "\xC3\xA7" => "\xC3\x87", "\xC3\xA8" => "\xC3\x88", "\xC3\xA9" => "\xC3\x89",
|
||||
"\xC3\xAA" => "\xC3\x8A", "\xC3\xAB" => "\xC3\x8B", "\xC3\xAC" => "\xC3\x8C", "\xC3\xAD" => "\xC3\x8D",
|
||||
"\xC3\xAE" => "\xC3\x8E", "\xC3\xAF" => "\xC3\x8F", "\xC3\xB0" => "\xC3\x90", "\xC3\xB1" => "\xC3\x91",
|
||||
"\xC3\xB2" => "\xC3\x92", "\xC3\xB3" => "\xC3\x93", "\xC3\xB4" => "\xC3\x94", "\xC3\xB5" => "\xC3\x95",
|
||||
"\xC3\xB6" => "\xC3\x96", "\xC3\xB8" => "\xC3\x98", "\xC3\xB9" => "\xC3\x99", "\xC3\xBA" => "\xC3\x9A",
|
||||
"\xC3\xBB" => "\xC3\x9B", "\xC3\xBC" => "\xC3\x9C", "\xC3\xBD" => "\xC3\x9D", "\xC3\xBE" => "\xC3\x9E",
|
||||
"\xC3\xBF" => "\xC5\xB8", "\xC4\x81" => "\xC4\x80", "\xC4\x83" => "\xC4\x82", "\xC4\x85" => "\xC4\x84",
|
||||
"\xC4\x87" => "\xC4\x86", "\xC4\x89" => "\xC4\x88", "\xC4\x8B" => "\xC4\x8A", "\xC4\x8D" => "\xC4\x8C",
|
||||
"\xC4\x8F" => "\xC4\x8E", "\xC4\x91" => "\xC4\x90", "\xC4\x93" => "\xC4\x92", "\xC4\x97" => "\xC4\x96",
|
||||
"\xC4\x99" => "\xC4\x98", "\xC4\x9B" => "\xC4\x9A", "\xC4\x9D" => "\xC4\x9C", "\xC4\x9F" => "\xC4\x9E",
|
||||
"\xC4\xA1" => "\xC4\xA0", "\xC4\xA3" => "\xC4\xA2", "\xC4\xA5" => "\xC4\xA4", "\xC4\xA7" => "\xC4\xA6",
|
||||
"\xC4\xA9" => "\xC4\xA8", "\xC4\xAB" => "\xC4\xAA", "\xC4\xAF" => "\xC4\xAE", "\xC4\xB5" => "\xC4\xB4",
|
||||
"\xC4\xB7" => "\xC4\xB6", "\xC4\xBA" => "\xC4\xB9", "\xC4\xBC" => "\xC4\xBB", "\xC4\xBE" => "\xC4\xBD",
|
||||
"\xC5\x82" => "\xC5\x81", "\xC5\x84" => "\xC5\x83", "\xC5\x86" => "\xC5\x85", "\xC5\x88" => "\xC5\x87",
|
||||
"\xC5\x8B" => "\xC5\x8A", "\xC5\x8D" => "\xC5\x8C", "\xC5\x91" => "\xC5\x90", "\xC5\x95" => "\xC5\x94",
|
||||
"\xC5\x97" => "\xC5\x96", "\xC5\x99" => "\xC5\x98", "\xC5\x9B" => "\xC5\x9A", "\xC5\x9D" => "\xC5\x9C",
|
||||
"\xC5\x9F" => "\xC5\x9E", "\xC5\xA1" => "\xC5\xA0", "\xC5\xA3" => "\xC5\xA2", "\xC5\xA5" => "\xC5\xA4",
|
||||
"\xC5\xA7" => "\xC5\xA6", "\xC5\xA9" => "\xC5\xA8", "\xC5\xAB" => "\xC5\xAA", "\xC5\xAD" => "\xC5\xAC",
|
||||
"\xC5\xAF" => "\xC5\xAE", "\xC5\xB1" => "\xC5\xB0", "\xC5\xB3" => "\xC5\xB2", "\xC5\xB5" => "\xC5\xB4",
|
||||
"\xC5\xB7" => "\xC5\xB6", "\xC5\xBA" => "\xC5\xB9", "\xC5\xBC" => "\xC5\xBB", "\xC5\xBE" => "\xC5\xBD",
|
||||
"\xC6\xA1" => "\xC6\xA0", "\xC6\xB0" => "\xC6\xAF", "\xC8\x99" => "\xC8\x98", "\xC8\x9B" => "\xC8\x9A",
|
||||
"\xCE\xAC" => "\xCE\x86", "\xCE\xAD" => "\xCE\x88", "\xCE\xAE" => "\xCE\x89", "\xCE\xAF" => "\xCE\x8A",
|
||||
"\xCE\xB1" => "\xCE\x91", "\xCE\xB2" => "\xCE\x92", "\xCE\xB3" => "\xCE\x93", "\xCE\xB4" => "\xCE\x94",
|
||||
"\xCE\xB5" => "\xCE\x95", "\xCE\xB6" => "\xCE\x96", "\xCE\xB7" => "\xCE\x97", "\xCE\xB8" => "\xCE\x98",
|
||||
"\xCE\xB9" => "\xCE\x99", "\xCE\xBA" => "\xCE\x9A", "\xCE\xBB" => "\xCE\x9B", "\xCE\xBC" => "\xCE\x9C",
|
||||
"\xCE\xBD" => "\xCE\x9D", "\xCE\xBE" => "\xCE\x9E", "\xCE\xBF" => "\xCE\x9F", "\xCF\x80" => "\xCE\xA0",
|
||||
"\xCF\x81" => "\xCE\xA1", "\xCF\x83" => "\xCE\xA3", "\xCF\x84" => "\xCE\xA4", "\xCF\x85" => "\xCE\xA5",
|
||||
"\xCF\x86" => "\xCE\xA6", "\xCF\x87" => "\xCE\xA7", "\xCF\x88" => "\xCE\xA8", "\xCF\x89" => "\xCE\xA9",
|
||||
"\xCF\x8A" => "\xCE\xAA", "\xCF\x8B" => "\xCE\xAB", "\xCF\x8C" => "\xCE\x8C", "\xCF\x8D" => "\xCE\x8E",
|
||||
"\xCF\x8E" => "\xCE\x8F", "\xD0\xB0" => "\xD0\x90", "\xD0\xB1" => "\xD0\x91", "\xD0\xB2" => "\xD0\x92",
|
||||
"\xD0\xB3" => "\xD0\x93", "\xD0\xB4" => "\xD0\x94", "\xD0\xB5" => "\xD0\x95", "\xD0\xB6" => "\xD0\x96",
|
||||
"\xD0\xB7" => "\xD0\x97", "\xD0\xB8" => "\xD0\x98", "\xD0\xB9" => "\xD0\x99", "\xD0\xBA" => "\xD0\x9A",
|
||||
"\xD0\xBB" => "\xD0\x9B", "\xD0\xBC" => "\xD0\x9C", "\xD0\xBD" => "\xD0\x9D", "\xD0\xBE" => "\xD0\x9E",
|
||||
"\xD0\xBF" => "\xD0\x9F", "\xD1\x80" => "\xD0\xA0", "\xD1\x81" => "\xD0\xA1", "\xD1\x82" => "\xD0\xA2",
|
||||
"\xD1\x83" => "\xD0\xA3", "\xD1\x84" => "\xD0\xA4", "\xD1\x85" => "\xD0\xA5", "\xD1\x86" => "\xD0\xA6",
|
||||
"\xD1\x87" => "\xD0\xA7", "\xD1\x88" => "\xD0\xA8", "\xD1\x89" => "\xD0\xA9", "\xD1\x8A" => "\xD0\xAA",
|
||||
"\xD1\x8B" => "\xD0\xAB", "\xD1\x8C" => "\xD0\xAC", "\xD1\x8D" => "\xD0\xAD", "\xD1\x8E" => "\xD0\xAE",
|
||||
"\xD1\x8F" => "\xD0\xAF", "\xD1\x91" => "\xD0\x81", "\xD1\x92" => "\xD0\x82", "\xD1\x93" => "\xD0\x83",
|
||||
"\xD1\x94" => "\xD0\x84", "\xD1\x95" => "\xD0\x85", "\xD1\x96" => "\xD0\x86", "\xD1\x97" => "\xD0\x87",
|
||||
"\xD1\x98" => "\xD0\x88", "\xD1\x99" => "\xD0\x89", "\xD1\x9A" => "\xD0\x8A", "\xD1\x9B" => "\xD0\x8B",
|
||||
"\xD1\x9C" => "\xD0\x8C", "\xD1\x9E" => "\xD0\x8E", "\xD1\x9F" => "\xD0\x8F", "\xD2\x91" => "\xD2\x90",
|
||||
"\xE1\xB8\x83" => "\xE1\xB8\x82", "\xE1\xB8\x8B" => "\xE1\xB8\x8A", "\xE1\xB8\x9F" => "\xE1\xB8\x9E", "\xE1\xB9\x81" => "\xE1\xB9\x80",
|
||||
"\xE1\xB9\x97" => "\xE1\xB9\x96", "\xE1\xB9\xA1" => "\xE1\xB9\xA0", "\xE1\xB9\xAB" => "\xE1\xB9\xAA", "\xE1\xBA\x81" => "\xE1\xBA\x80",
|
||||
"\xE1\xBA\x83" => "\xE1\xBA\x82", "\xE1\xBA\x85" => "\xE1\xBA\x84", "\xE1\xBB\xB3" => "\xE1\xBB\xB2"
|
||||
);
|
||||
|
||||
return strtr(strtoupper($string), $utf8_lower_to_upper);
|
||||
}
|
||||
|
||||
/**
|
||||
* UTF-8 aware alternative to substr
|
||||
* Return part of a string given character offset (and optionally length)
|
||||
*
|
||||
* Note arguments: comparied to substr - if offset or length are
|
||||
* not integers, this version will not complain but rather massages them
|
||||
* into an integer.
|
||||
*
|
||||
* Note on returned values: substr documentation states false can be
|
||||
* returned in some cases (e.g. offset > string length)
|
||||
* mb_substr never returns false, it will return an empty string instead.
|
||||
* This adopts the mb_substr approach
|
||||
*
|
||||
* Note on implementation: PCRE only supports repetitions of less than
|
||||
* 65536, in order to accept up to MAXINT values for offset and length,
|
||||
* we'll repeat a group of 65535 characters when needed.
|
||||
*
|
||||
* Note on implementation: calculating the number of characters in the
|
||||
* string is a relatively expensive operation, so we only carry it out when
|
||||
* necessary. It isn't necessary for +ve offsets and no specified length
|
||||
*
|
||||
* @author Chris Smith<chris@jalakai.co.uk>
|
||||
* @param string $str
|
||||
* @param integer $offset number of UTF-8 characters offset (from left)
|
||||
* @param integer $length (optional) length in UTF-8 characters from offset
|
||||
* @return mixed string or FALSE if failure
|
||||
*/
|
||||
function utf8_substr($str, $offset, $length = NULL)
|
||||
{
|
||||
// generates E_NOTICE
|
||||
// for PHP4 objects, but not PHP5 objects
|
||||
$str = (string) $str;
|
||||
$offset = (int) $offset;
|
||||
if (!is_null($length))
|
||||
{
|
||||
$length = (int) $length;
|
||||
}
|
||||
|
||||
// handle trivial cases
|
||||
if ($length === 0 || ($offset < 0 && $length < 0 && $length < $offset))
|
||||
{
|
||||
return '';
|
||||
}
|
||||
|
||||
// normalise negative offsets (we could use a tail
|
||||
// anchored pattern, but they are horribly slow!)
|
||||
if ($offset < 0)
|
||||
{
|
||||
// see notes
|
||||
$strlen = utf8_strlen($str);
|
||||
$offset = $strlen + $offset;
|
||||
if ($offset < 0)
|
||||
{
|
||||
$offset = 0;
|
||||
}
|
||||
}
|
||||
|
||||
$op = '';
|
||||
$lp = '';
|
||||
|
||||
// establish a pattern for offset, a
|
||||
// non-captured group equal in length to offset
|
||||
if ($offset > 0)
|
||||
{
|
||||
$ox = (int) ($offset / 65535);
|
||||
$oy = $offset % 65535;
|
||||
|
||||
if ($ox)
|
||||
{
|
||||
$op = '(?:.{65535}){' . $ox . '}';
|
||||
}
|
||||
|
||||
$op = '^(?:' . $op . '.{' . $oy . '})';
|
||||
}
|
||||
else
|
||||
{
|
||||
// offset == 0; just anchor the pattern
|
||||
$op = '^';
|
||||
}
|
||||
|
||||
// establish a pattern for length
|
||||
if (is_null($length))
|
||||
{
|
||||
// the rest of the string
|
||||
$lp = '(.*)$';
|
||||
}
|
||||
else
|
||||
{
|
||||
if (!isset($strlen))
|
||||
{
|
||||
// see notes
|
||||
$strlen = utf8_strlen($str);
|
||||
}
|
||||
|
||||
// another trivial case
|
||||
if ($offset > $strlen)
|
||||
{
|
||||
return '';
|
||||
}
|
||||
|
||||
if ($length > 0)
|
||||
{
|
||||
// reduce any length that would
|
||||
// go passed the end of the string
|
||||
$length = min($strlen - $offset, $length);
|
||||
|
||||
$lx = (int) ($length / 65535);
|
||||
$ly = $length % 65535;
|
||||
|
||||
// negative length requires a captured group
|
||||
// of length characters
|
||||
if ($lx)
|
||||
{
|
||||
$lp = '(?:.{65535}){' . $lx . '}';
|
||||
}
|
||||
$lp = '(' . $lp . '.{'. $ly . '})';
|
||||
}
|
||||
else if ($length < 0)
|
||||
{
|
||||
if ($length < ($offset - $strlen))
|
||||
{
|
||||
return '';
|
||||
}
|
||||
|
||||
$lx = (int) ((-$length) / 65535);
|
||||
$ly = (-$length) % 65535;
|
||||
|
||||
// negative length requires ... capture everything
|
||||
// except a group of -length characters
|
||||
// anchored at the tail-end of the string
|
||||
if ($lx)
|
||||
{
|
||||
$lp = '(?:.{65535}){' . $lx . '}';
|
||||
}
|
||||
$lp = '(.*)(?:' . $lp . '.{' . $ly . '})$';
|
||||
}
|
||||
}
|
||||
|
||||
if (!preg_match('#' . $op . $lp . '#us', $str, $match))
|
||||
{
|
||||
return '';
|
||||
}
|
||||
|
||||
return $match[1];
|
||||
}
|
||||
|
||||
/**
|
||||
* Return the length (in characters) of a UTF-8 string
|
||||
*
|
||||
* @param string $text UTF-8 string
|
||||
* @return integer Length (in chars) of given string
|
||||
*/
|
||||
function utf8_strlen($text)
|
||||
{
|
||||
// Since utf8_decode is replacing multibyte characters to ? strlen works fine
|
||||
return strlen(utf8_decode($text));
|
||||
}
|
||||
/**
|
||||
* Return the length (in characters) of a UTF-8 string
|
||||
* @ignore
|
||||
*/
|
||||
function utf8_strlen($text)
|
||||
{
|
||||
return mb_strlen($text, 'utf-8');
|
||||
}
|
||||
|
||||
/**
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue