xref: /dokuwiki/inc/utf8.php (revision 265e3787e12edf6f10be9d7260d20ea1778428cb)
1<?php
2/**
3 * UTF8 helper functions
4 *
5 * @license    GPL 2 (http://www.gnu.org/licenses/gpl.html)
6 * @author     Andreas Gohr <andi@splitbrain.org>
7 */
8
9/**
10 * URL-Encode a filename to allow unicodecharacters
11 *
12 * Slashes are not encoded
13 *
14 * When the second parameter is true the string will
15 * be encoded only if non ASCII characters are detected -
16 * This makes it safe to run it multiple times on the
17 * same string (default is true)
18 *
19 * @author Andreas Gohr <andi@splitbrain.org>
20 * @see    urlencode
21 */
22function utf8_encodeFN($file,$safe=true){
23  if($safe && preg_match('#^[a-zA-Z0-9/_\-.%]+$#',$file)){
24    return $file;
25  }
26  $file = urlencode($file);
27  $file = str_replace('%2F','/',$file);
28  return $file;
29}
30
31/**
32 * URL-Decode a filename
33 *
34 * This is just a wrapper around urldecode
35 *
36 * @author Andreas Gohr <andi@splitbrain.org>
37 * @see    urldecode
38 */
39function utf8_decodeFN($file){
40  $file = urldecode($file);
41  return $file;
42}
43
44/**
45 * Checks if a string contains 7bit ASCII only
46 *
47 * @author Andreas Gohr <andi@splitbrain.org>
48 */
49function utf8_isASCII($str){
50  for($i=0; $i<strlen($str); $i++){
51    if(ord($str{$i}) >127) return false;
52  }
53  return true;
54}
55
56/**
57 * Strips all highbyte chars
58 *
59 * Returns a pure ASCII7 string
60 *
61 * @author Andreas Gohr <andi@splitbrain.org>
62 */
63function utf8_strip($str){
64  $ascii = '';
65  for($i=0; $i<strlen($str); $i++){
66    if(ord($str{$i}) <128){
67      $ascii .= $str{$i};
68    }
69  }
70  return $ascii;
71}
72
73/**
74 * Tries to detect if a string is in Unicode encoding
75 *
76 * @author <bmorel@ssi.fr>
77 * @link   http://www.php.net/manual/en/function.utf8-encode.php
78 */
79function utf8_check($Str) {
80 for ($i=0; $i<strlen($Str); $i++) {
81  if (ord($Str[$i]) < 0x80) continue; # 0bbbbbbb
82  elseif ((ord($Str[$i]) & 0xE0) == 0xC0) $n=1; # 110bbbbb
83  elseif ((ord($Str[$i]) & 0xF0) == 0xE0) $n=2; # 1110bbbb
84  elseif ((ord($Str[$i]) & 0xF8) == 0xF0) $n=3; # 11110bbb
85  elseif ((ord($Str[$i]) & 0xFC) == 0xF8) $n=4; # 111110bb
86  elseif ((ord($Str[$i]) & 0xFE) == 0xFC) $n=5; # 1111110b
87  else return false; # Does not match any model
88  for ($j=0; $j<$n; $j++) { # n bytes matching 10bbbbbb follow ?
89   if ((++$i == strlen($Str)) || ((ord($Str[$i]) & 0xC0) != 0x80))
90   return false;
91  }
92 }
93 return true;
94}
95
96/**
97 * Unicode aware replacement for strlen()
98 *
99 * utf8_decode() converts characters that are not in ISO-8859-1
100 * to '?', which, for the purpose of counting, is alright - It's
101 * even faster than mb_strlen.
102 *
103 * @author <chernyshevsky at hotmail dot com>
104 * @see    strlen()
105 * @see    utf8_decode()
106 */
107function utf8_strlen($string){
108  return strlen(utf8_decode($str));
109}
110
111/**
112 * Unicode aware replacement for substr()
113 *
114 * @todo   Handle negative positions etc.
115 * @author Harry Fuecks <hfuecks@gmail.com>
116 * @see    substr()
117 */
118function utf8_substr($str, $start, $length=null){
119  if ( is_null($length) ) {
120    $length = '*';
121  } else {
122    $length = '{0,'.$length.'}';
123  }
124  $pattern = '/^.{'.$start.'}(.'.$length.')/us';
125  preg_match($pattern, $str, $matches);
126
127  if ( isset($matches[1]) ) {
128    return $matches[1];
129  }
130  return false;
131}
132
133/**
134 * Unicode aware replacement for explode
135 *
136 * @TODO   support third limit arg
137 * @author Harry Fuecks <hfuecks@gmail.com>
138 * @see    explode();
139 */
140function utf8_explode($sep, $str) {
141  if ( $sep == '' ) {
142    trigger_error('Empty delimiter',E_USER_WARNING);
143    return FALSE;
144  }
145
146  return preg_split('!'.preg_quote($sep,'!').'!u',$str);
147}
148
149/**
150 * Unicode aware replacement for strrepalce()
151 *
152 * @todo   support PHP5 count (fourth arg)
153 * @author Harry Fuecks <hfuecks@gmail.com>
154 * @see    strreplace();
155 */
156function utf8_str_replace($s,$r,$str){
157  if(!is_array($s)){
158    $s = '!'.preg_quote($s,'!').'!u';
159  }else{
160    foreach ($s as $k => $v) {
161      $s[$k] = '!'.preg_quote($v).'!u';
162    }
163  }
164  return preg_replace($s,$r,$str);
165}
166
167/**
168 * Unicode aware replacement for ltrim()
169 *
170 * @author Andreas Gohr <andi@splitbrain.org>
171 * @see    ltrim()
172 * @return string
173 */
174function utf8_ltrim($str,$charlist=''){
175  if($charlist == '') return ltrim($str);
176
177  //quote charlist for use in a characterclass
178  $charlist = preg_replace('!([\\\\\\-\\]\\[/])!','\\\${1}',$charlist);
179
180  return preg_replace('/^['.$charlist.']+/u','',$str);
181}
182
183/**
184 * Unicode aware replacement for ltrim()
185 *
186 * @author Andreas Gohr <andi@splitbrain.org>
187 * @see    rtrim()
188 * @return string
189 */
190function  utf8_rtrim($str,$charlist=''){
191  if($charlist == '') return rtrim($str);
192
193  //quote charlist for use in a characterclass
194  $charlist = preg_replace('!([\\\\\\-\\]\\[/])!','\\\${1}',$charlist);
195
196  return preg_replace('/['.$charlist.']+$/u','',$str);
197}
198
199/**
200 * Unicode aware replacement for trim()
201 *
202 * @author Andreas Gohr <andi@splitbrain.org>
203 * @see    trim()
204 * @return string
205 */
206function  utf8_trim($str,$charlist='') {
207  if($charlist == '') return trim($str);
208
209  return utf8_ltrim(utf8_rtrim($str));
210}
211
212
213/**
214 * This is a unicode aware replacement for strtolower()
215 *
216 * Uses mb_string extension if available
217 *
218 * @author Andreas Gohr <andi@splitbrain.org>
219 * @see    strtolower()
220 * @see    utf8_strtoupper()
221 */
222function utf8_strtolower($string){
223  if(!defined('UTF8_NOMBSTRING') && function_exists('mb_strtolower'))
224    return mb_strtolower($string,'utf-8');
225
226  global $UTF8_UPPER_TO_LOWER;
227  $uni = utf8_to_unicode($string);
228  $cnt = count($uni);
229  for ($i=0; $i < $cnt; $i++){
230    if($UTF8_UPPER_TO_LOWER[$uni[$i]]){
231      $uni[$i] = $UTF8_UPPER_TO_LOWER[$uni[$i]];
232    }
233  }
234  return unicode_to_utf8($uni);
235}
236
237/**
238 * This is a unicode aware replacement for strtoupper()
239 *
240 * Uses mb_string extension if available
241 *
242 * @author Andreas Gohr <andi@splitbrain.org>
243 * @see    strtoupper()
244 * @see    utf8_strtoupper()
245 */
246function utf8_strtoupper($string){
247  if(!defined('UTF8_NOMBSTRING') && function_exists('mb_strtolower'))
248    return mb_strtolower($string,'utf-8');
249
250  global $UTF8_LOWER_TO_UPPER;
251  $uni = utf8_to_unicode($string);
252  $cnt = count($uni);
253  for ($i=0; $i < $cnt; $i++){
254    if($UTF8_LOWER_TO_UPPER[$uni[$i]]){
255      $uni[$i] = $UTF8_LOWER_TO_UPPER[$uni[$i]];
256    }
257  }
258  return unicode_to_utf8($uni);
259}
260
261/**
262 * Replace accented UTF-8 characters by unaccented ASCII-7 equivalents
263 *
264 * Use the optional parameter to just deaccent lower ($case = -1) or upper ($case = 1)
265 * letters. Default is to deaccent both cases ($case = 0)
266 *
267 * @author Andreas Gohr <andi@splitbrain.org>
268 */
269function utf8_deaccent($string,$case=0){
270  if($case <= 0){
271    global $UTF8_LOWER_ACCENTS;
272    $string = str_replace(array_keys($UTF8_LOWER_ACCENTS),array_values($UTF8_LOWER_ACCENTS),$string);
273  }
274  if($case >= 0){
275    global $UTF8_UPPER_ACCENTS;
276    $string = str_replace(array_keys($UTF8_UPPER_ACCENTS),array_values($UTF8_UPPER_ACCENTS),$string);
277  }
278  return $string;
279}
280
281/**
282 * Removes special characters (nonalphanumeric) from a UTF-8 string
283 *
284 * This function adds the controlchars 0x00 to 0x19 to the array of
285 * stripped chars (they are not included in $UTF8_SPECIAL_CHARS)
286 *
287 * @author Andreas Gohr <andi@splitbrain.org>
288 * @param  string $string The UTF8 string to strip of special chars
289 * @param  string $repl   Replace special with this string
290 */
291function utf8_stripspecials($string,$repl=''){
292  global $UTF8_SPECIAL_CHARS;
293
294  static $specials = null;
295  if(is_null($specials)){
296    $specials = preg_quote(unicode_to_utf8($UTF8_SPECIAL_CHARS), '/');
297  }
298
299  return preg_replace('/[\x00-\x19'.$specials.']/u',$repl,$string);
300}
301
302/**
303 * This is an Unicode aware replacement for strpos
304 *
305 * Uses mb_string extension if available
306 *
307 * @author Harry Fuecks <hfuecks@gmail.com>
308 * @see    strpos()
309 */
310function utf8_strpos($haystack, $needle,$offset=0) {
311  if(!defined('UTF8_NOMBSTRING') && function_exists('mb_strpos'))
312    return mb_strpos($haystack,$needle,$offset,'utf-8');
313
314  if(!$offset){
315    $ar = utf8_explode($needle, $str);
316    if ( count($ar) > 1 ) {
317       return utf8_strlen($ar[0]);
318    }
319    return false;
320  }else{
321    if ( !is_int($offset) ) {
322      trigger_error('Offset must be an integer',E_USER_WARNING);
323      return false;
324    }
325
326    $str = utf8_substr($str, $offset);
327
328    if ( false !== ($pos = utf8_strpos($str,$needle))){
329       return $pos + $offset;
330    }
331    return false;
332  }
333}
334
335/**
336 * This function returns any UTF-8 encoded text as a list of
337 * Unicode values:
338 *
339 * @author Scott Michael Reynen <scott@randomchaos.com>
340 * @link   http://www.randomchaos.com/document.php?source=php_and_unicode
341 * @see    unicode_to_utf8()
342 */
343function utf8_to_unicode( $str ) {
344  $unicode = array();
345  $values = array();
346  $lookingFor = 1;
347
348  for ($i = 0; $i < strlen( $str ); $i++ ) {
349    $thisValue = ord( $str[ $i ] );
350    if ( $thisValue < 128 ) $unicode[] = $thisValue;
351    else {
352      if ( count( $values ) == 0 ) $lookingFor = ( $thisValue < 224 ) ? 2 : 3;
353      $values[] = $thisValue;
354      if ( count( $values ) == $lookingFor ) {
355  $number = ( $lookingFor == 3 ) ?
356    ( ( $values[0] % 16 ) * 4096 ) + ( ( $values[1] % 64 ) * 64 ) + ( $values[2] % 64 ):
357  	( ( $values[0] % 32 ) * 64 ) + ( $values[1] % 64 );
358  $unicode[] = $number;
359  $values = array();
360  $lookingFor = 1;
361      }
362    }
363  }
364  return $unicode;
365}
366
367/**
368 * This function converts a Unicode array back to its UTF-8 representation
369 *
370 * @author Scott Michael Reynen <scott@randomchaos.com>
371 * @link   http://www.randomchaos.com/document.php?source=php_and_unicode
372 * @see    utf8_to_unicode()
373 */
374function unicode_to_utf8( $str ) {
375  $utf8 = '';
376  foreach( $str as $unicode ) {
377    if ( $unicode < 128 ) {
378      $utf8.= chr( $unicode );
379    } elseif ( $unicode < 2048 ) {
380      $utf8.= chr( 192 +  ( ( $unicode - ( $unicode % 64 ) ) / 64 ) );
381      $utf8.= chr( 128 + ( $unicode % 64 ) );
382    } else {
383      $utf8.= chr( 224 + ( ( $unicode - ( $unicode % 4096 ) ) / 4096 ) );
384      $utf8.= chr( 128 + ( ( ( $unicode % 4096 ) - ( $unicode % 64 ) ) / 64 ) );
385      $utf8.= chr( 128 + ( $unicode % 64 ) );
386    }
387  }
388  return $utf8;
389}
390
391/**
392 * UTF-8 Case lookup table
393 *
394 * This lookuptable defines the upper case letters to their correspponding
395 * lower case letter in UTF-8
396 *
397 * @author Andreas Gohr <andi@splitbrain.org>
398 */
399$UTF8_LOWER_TO_UPPER = array(
400  0x0061=>0x0041, 0x03C6=>0x03A6, 0x0163=>0x0162, 0x00E5=>0x00C5, 0x0062=>0x0042,
401  0x013A=>0x0139, 0x00E1=>0x00C1, 0x0142=>0x0141, 0x03CD=>0x038E, 0x0101=>0x0100,
402  0x0491=>0x0490, 0x03B4=>0x0394, 0x015B=>0x015A, 0x0064=>0x0044, 0x03B3=>0x0393,
403  0x00F4=>0x00D4, 0x044A=>0x042A, 0x0439=>0x0419, 0x0113=>0x0112, 0x043C=>0x041C,
404  0x015F=>0x015E, 0x0144=>0x0143, 0x00EE=>0x00CE, 0x045E=>0x040E, 0x044F=>0x042F,
405  0x03BA=>0x039A, 0x0155=>0x0154, 0x0069=>0x0049, 0x0073=>0x0053, 0x1E1F=>0x1E1E,
406  0x0135=>0x0134, 0x0447=>0x0427, 0x03C0=>0x03A0, 0x0438=>0x0418, 0x00F3=>0x00D3,
407  0x0440=>0x0420, 0x0454=>0x0404, 0x0435=>0x0415, 0x0449=>0x0429, 0x014B=>0x014A,
408  0x0431=>0x0411, 0x0459=>0x0409, 0x1E03=>0x1E02, 0x00F6=>0x00D6, 0x00F9=>0x00D9,
409  0x006E=>0x004E, 0x0451=>0x0401, 0x03C4=>0x03A4, 0x0443=>0x0423, 0x015D=>0x015C,
410  0x0453=>0x0403, 0x03C8=>0x03A8, 0x0159=>0x0158, 0x0067=>0x0047, 0x00E4=>0x00C4,
411  0x03AC=>0x0386, 0x03AE=>0x0389, 0x0167=>0x0166, 0x03BE=>0x039E, 0x0165=>0x0164,
412  0x0117=>0x0116, 0x0109=>0x0108, 0x0076=>0x0056, 0x00FE=>0x00DE, 0x0157=>0x0156,
413  0x00FA=>0x00DA, 0x1E61=>0x1E60, 0x1E83=>0x1E82, 0x00E2=>0x00C2, 0x0119=>0x0118,
414  0x0146=>0x0145, 0x0070=>0x0050, 0x0151=>0x0150, 0x044E=>0x042E, 0x0129=>0x0128,
415  0x03C7=>0x03A7, 0x013E=>0x013D, 0x0442=>0x0422, 0x007A=>0x005A, 0x0448=>0x0428,
416  0x03C1=>0x03A1, 0x1E81=>0x1E80, 0x016D=>0x016C, 0x00F5=>0x00D5, 0x0075=>0x0055,
417  0x0177=>0x0176, 0x00FC=>0x00DC, 0x1E57=>0x1E56, 0x03C3=>0x03A3, 0x043A=>0x041A,
418  0x006D=>0x004D, 0x016B=>0x016A, 0x0171=>0x0170, 0x0444=>0x0424, 0x00EC=>0x00CC,
419  0x0169=>0x0168, 0x03BF=>0x039F, 0x006B=>0x004B, 0x00F2=>0x00D2, 0x00E0=>0x00C0,
420  0x0434=>0x0414, 0x03C9=>0x03A9, 0x1E6B=>0x1E6A, 0x00E3=>0x00C3, 0x044D=>0x042D,
421  0x0436=>0x0416, 0x01A1=>0x01A0, 0x010D=>0x010C, 0x011D=>0x011C, 0x00F0=>0x00D0,
422  0x013C=>0x013B, 0x045F=>0x040F, 0x045A=>0x040A, 0x00E8=>0x00C8, 0x03C5=>0x03A5,
423  0x0066=>0x0046, 0x00FD=>0x00DD, 0x0063=>0x0043, 0x021B=>0x021A, 0x00EA=>0x00CA,
424  0x03B9=>0x0399, 0x017A=>0x0179, 0x00EF=>0x00CF, 0x01B0=>0x01AF, 0x0065=>0x0045,
425  0x03BB=>0x039B, 0x03B8=>0x0398, 0x03BC=>0x039C, 0x045C=>0x040C, 0x043F=>0x041F,
426  0x044C=>0x042C, 0x00FE=>0x00DE, 0x00F0=>0x00D0, 0x1EF3=>0x1EF2, 0x0068=>0x0048,
427  0x00EB=>0x00CB, 0x0111=>0x0110, 0x0433=>0x0413, 0x012F=>0x012E, 0x00E6=>0x00C6,
428  0x0078=>0x0058, 0x0161=>0x0160, 0x016F=>0x016E, 0x03B1=>0x0391, 0x0457=>0x0407,
429  0x0173=>0x0172, 0x00FF=>0x0178, 0x006F=>0x004F, 0x043B=>0x041B, 0x03B5=>0x0395,
430  0x0445=>0x0425, 0x0121=>0x0120, 0x017E=>0x017D, 0x017C=>0x017B, 0x03B6=>0x0396,
431  0x03B2=>0x0392, 0x03AD=>0x0388, 0x1E85=>0x1E84, 0x0175=>0x0174, 0x0071=>0x0051,
432  0x0437=>0x0417, 0x1E0B=>0x1E0A, 0x0148=>0x0147, 0x0105=>0x0104, 0x0458=>0x0408,
433  0x014D=>0x014C, 0x00ED=>0x00CD, 0x0079=>0x0059, 0x010B=>0x010A, 0x03CE=>0x038F,
434  0x0072=>0x0052, 0x0430=>0x0410, 0x0455=>0x0405, 0x0452=>0x0402, 0x0127=>0x0126,
435  0x0137=>0x0136, 0x012B=>0x012A, 0x03AF=>0x038A, 0x044B=>0x042B, 0x006C=>0x004C,
436  0x03B7=>0x0397, 0x0125=>0x0124, 0x0219=>0x0218, 0x00FB=>0x00DB, 0x011F=>0x011E,
437  0x043E=>0x041E, 0x1E41=>0x1E40, 0x03BD=>0x039D, 0x0107=>0x0106, 0x03CB=>0x03AB,
438  0x0446=>0x0426, 0x00FE=>0x00DE, 0x00E7=>0x00C7, 0x03CA=>0x03AA, 0x0441=>0x0421,
439  0x0432=>0x0412, 0x010F=>0x010E, 0x00F8=>0x00D8, 0x0077=>0x0057, 0x011B=>0x011A,
440  0x0074=>0x0054, 0x006A=>0x004A, 0x045B=>0x040B, 0x0456=>0x0406, 0x0103=>0x0102,
441  0x03BB=>0x039B, 0x00F1=>0x00D1, 0x043D=>0x041D, 0x03CC=>0x038C, 0x00E9=>0x00C9,
442  0x00F0=>0x00D0, 0x0457=>0x0407, 0x0123=>0x0122,
443);
444
445/**
446 * UTF-8 Case lookup table
447 *
448 * This lookuptable defines the lower case letters to their correspponding
449 * upper case letter in UTF-8 (it does so by flipping $UTF8_LOWER_TO_UPPER)
450 *
451 * @author Andreas Gohr <andi@splitbrain.org>
452 */
453$UTF8_UPPER_TO_LOWER = @array_flip($UTF8_LOWER_TO_UPPER);
454
455/**
456 * UTF-8 lookup table for lower case accented letters
457 *
458 * This lookuptable defines replacements for accented characters from the ASCII-7
459 * range. This are lower case letters only.
460 *
461 * @author Andreas Gohr <andi@splitbrain.org>
462 * @see    utf8_deaccent()
463 */
464$UTF8_LOWER_ACCENTS = array(
465  'à' => 'a', 'ô' => 'o', 'ď' => 'd', 'ḟ' => 'f', 'ë' => 'e', 'š' => 's', 'ơ' => 'o',
466  'ß' => 'ss', 'ă' => 'a', 'ř' => 'r', 'ț' => 't', 'ň' => 'n', 'ā' => 'a', 'ķ' => 'k',
467  'ŝ' => 's', 'ỳ' => 'y', 'ņ' => 'n', 'ĺ' => 'l', 'ħ' => 'h', 'ṗ' => 'p', 'ó' => 'o',
468  'ú' => 'u', 'ě' => 'e', 'é' => 'e', 'ç' => 'c', 'ẁ' => 'w', 'ċ' => 'c', 'õ' => 'o',
469  'ṡ' => 's', 'ø' => 'o', 'ģ' => 'g', 'ŧ' => 't', 'ș' => 's', 'ė' => 'e', 'ĉ' => 'c',
470  'ś' => 's', 'î' => 'i', 'ű' => 'u', 'ć' => 'c', 'ę' => 'e', 'ŵ' => 'w', 'ṫ' => 't',
471  'ū' => 'u', 'č' => 'c', 'ö' => 'oe', 'è' => 'e', 'ŷ' => 'y', 'ą' => 'a', 'ł' => 'l',
472  'ų' => 'u', 'ů' => 'u', 'ş' => 's', 'ğ' => 'g', 'ļ' => 'l', 'ƒ' => 'f', 'ž' => 'z',
473  'ẃ' => 'w', 'ḃ' => 'b', 'å' => 'a', 'ì' => 'i', 'ï' => 'i', 'ḋ' => 'd', 'ť' => 't',
474  'ŗ' => 'r', 'ä' => 'ae', 'í' => 'i', 'ŕ' => 'r', 'ê' => 'e', 'ü' => 'ue', 'ò' => 'o',
475  'ē' => 'e', 'ñ' => 'n', 'ń' => 'n', 'ĥ' => 'h', 'ĝ' => 'g', 'đ' => 'd', 'ĵ' => 'j',
476  'ÿ' => 'y', 'ũ' => 'u', 'ŭ' => 'u', 'ư' => 'u', 'ţ' => 't', 'ý' => 'y', 'ő' => 'o',
477  'â' => 'a', 'ľ' => 'l', 'ẅ' => 'w', 'ż' => 'z', 'ī' => 'i', 'ã' => 'a', 'ġ' => 'g',
478  'ṁ' => 'm', 'ō' => 'o', 'ĩ' => 'i', 'ù' => 'u', 'į' => 'i', 'ź' => 'z', 'á' => 'a',
479  'û' => 'u', 'þ' => 'th', 'ð' => 'dh', 'æ' => 'ae', 'µ' => 'u',
480);
481
482/**
483 * UTF-8 lookup table for upper case accented letters
484 *
485 * This lookuptable defines replacements for accented characters from the ASCII-7
486 * range. This are upper case letters only.
487 *
488 * @author Andreas Gohr <andi@splitbrain.org>
489 * @see    utf8_deaccent()
490 */
491$UTF8_UPPER_ACCENTS = array(
492  'à' => 'A', 'ô' => 'O', 'ď' => 'D', 'ḟ' => 'F', 'ë' => 'E', 'š' => 'S', 'ơ' => 'O',
493  'ß' => 'Ss', 'ă' => 'A', 'ř' => 'R', 'ț' => 'T', 'ň' => 'N', 'ā' => 'A', 'ķ' => 'K',
494  'ŝ' => 'S', 'ỳ' => 'Y', 'ņ' => 'N', 'ĺ' => 'L', 'ħ' => 'H', 'ṗ' => 'P', 'ó' => 'O',
495  'ú' => 'U', 'ě' => 'E', 'é' => 'E', 'ç' => 'C', 'ẁ' => 'W', 'ċ' => 'C', 'õ' => 'O',
496  'ṡ' => 'S', 'ø' => 'O', 'ģ' => 'G', 'ŧ' => 'T', 'ș' => 'S', 'ė' => 'E', 'ĉ' => 'C',
497  'ś' => 'S', 'î' => 'I', 'ű' => 'U', 'ć' => 'C', 'ę' => 'E', 'ŵ' => 'W', 'ṫ' => 'T',
498  'ū' => 'U', 'č' => 'C', 'ö' => 'Oe', 'è' => 'E', 'ŷ' => 'Y', 'ą' => 'A', 'ł' => 'L',
499  'ų' => 'U', 'ů' => 'U', 'ş' => 'S', 'ğ' => 'G', 'ļ' => 'L', 'ƒ' => 'F', 'ž' => 'Z',
500  'ẃ' => 'W', 'ḃ' => 'B', 'å' => 'A', 'ì' => 'I', 'ï' => 'I', 'ḋ' => 'D', 'ť' => 'T',
501  'ŗ' => 'R', 'ä' => 'Ae', 'í' => 'I', 'ŕ' => 'R', 'ê' => 'E', 'ü' => 'Ue', 'ò' => 'O',
502  'ē' => 'E', 'ñ' => 'N', 'ń' => 'N', 'ĥ' => 'H', 'ĝ' => 'G', 'đ' => 'D', 'ĵ' => 'J',
503  'ÿ' => 'Y', 'ũ' => 'U', 'ŭ' => 'U', 'ư' => 'U', 'ţ' => 'T', 'ý' => 'Y', 'ő' => 'O',
504  'â' => 'A', 'ľ' => 'L', 'ẅ' => 'W', 'ż' => 'Z', 'ī' => 'I', 'ã' => 'A', 'ġ' => 'G',
505  'ṁ' => 'M', 'ō' => 'O', 'ĩ' => 'I', 'ù' => 'U', 'į' => 'I', 'ź' => 'Z', 'á' => 'A',
506  'û' => 'U', 'Þ' => 'Th', 'Ð' => 'Dh', 'Æ' => 'Ae',
507);
508
509/**
510 * UTF-8 array of common special characters
511 *
512 * This array should contain all special characters (not a letter or digit)
513 * defined in the various local charsets - it's not a complete list of non-alphanum
514 * characters in UTF-8. It's not perfect but should match most cases of special
515 * chars.
516 *
517 * The controlchars 0x00 to 0x19 are _not_ included in this array. The space 0x20 is!
518 * These chars are _not_ in the array either:  _ (0x5f), : 0x3a, . 0x2e, - 0x2d
519 *
520 * @author Andreas Gohr <andi@splitbrain.org>
521 * @see    utf8_stripspecials()
522 */
523$UTF8_SPECIAL_CHARS = array(
524  0x001a, 0x001b, 0x001c, 0x001d, 0x001e, 0x001f, 0x0020, 0x0021, 0x0022, 0x0023,
525  0x0024, 0x0025, 0x0026, 0x0027, 0x0028, 0x0029, 0x002a, 0x002b, 0x002c,
526          0x002f,         0x003b, 0x003c, 0x003d, 0x003e, 0x003f, 0x0040, 0x005b,
527  0x005c, 0x005d, 0x005e,         0x0060, 0x007b, 0x007c, 0x007d, 0x007e,
528  0x007f, 0x0080, 0x0081, 0x0082, 0x0083, 0x0084, 0x0085, 0x0086, 0x0087, 0x0088,
529  0x0089, 0x008a, 0x008b, 0x008c, 0x008d, 0x008e, 0x008f, 0x0090, 0x0091, 0x0092,
530	0x0093, 0x0094, 0x0095, 0x0096, 0x0097, 0x0098, 0x0099, 0x009a, 0x009b, 0x009c,
531	0x009d, 0x009e, 0x009f, 0x00a0, 0x00a1, 0x00a2, 0x00a3, 0x00a4, 0x00a5, 0x00a6,
532	0x00a7, 0x00a8, 0x00a9, 0x00aa, 0x00ab, 0x00ac, 0x00ad, 0x00ae, 0x00af, 0x00b0,
533	0x00b1, 0x00b2, 0x00b3, 0x00b4, 0x00b5, 0x00b6, 0x00b7, 0x00b8, 0x00b9, 0x00ba,
534	0x00bb, 0x00bc, 0x00bd, 0x00be, 0x00bf, 0x00d7, 0x00f7, 0x02c7, 0x02d8, 0x02d9,
535	0x02da, 0x02db, 0x02dc, 0x02dd, 0x0300, 0x0301, 0x0303, 0x0309, 0x0323, 0x0384,
536	0x0385, 0x0387, 0x03b2, 0x03c6, 0x03d1, 0x03d2, 0x03d5, 0x03d6, 0x05b0, 0x05b1,
537	0x05b2, 0x05b3, 0x05b4, 0x05b5, 0x05b6, 0x05b7, 0x05b8, 0x05b9, 0x05bb, 0x05bc,
538	0x05bd, 0x05be, 0x05bf, 0x05c0, 0x05c1, 0x05c2, 0x05c3, 0x05f3, 0x05f4, 0x060c,
539	0x061b, 0x061f, 0x0640, 0x064b, 0x064c, 0x064d, 0x064e, 0x064f, 0x0650, 0x0651,
540	0x0652, 0x066a, 0x0e3f, 0x200c, 0x200d, 0x200e, 0x200f, 0x2013, 0x2014, 0x2015,
541	0x2017, 0x2018, 0x2019, 0x201a, 0x201c, 0x201d, 0x201e, 0x2020, 0x2021, 0x2022,
542	0x2026, 0x2030, 0x2032, 0x2033, 0x2039, 0x203a, 0x2044, 0x20a7, 0x20aa, 0x20ab,
543	0x20ac, 0x2116, 0x2118, 0x2122, 0x2126, 0x2135, 0x2190, 0x2191, 0x2192, 0x2193,
544	0x2194, 0x2195, 0x21b5, 0x21d0, 0x21d1, 0x21d2, 0x21d3, 0x21d4, 0x2200, 0x2202,
545	0x2203, 0x2205, 0x2206, 0x2207, 0x2208, 0x2209, 0x220b, 0x220f, 0x2211, 0x2212,
546	0x2215, 0x2217, 0x2219, 0x221a, 0x221d, 0x221e, 0x2220, 0x2227, 0x2228, 0x2229,
547	0x222a, 0x222b, 0x2234, 0x223c, 0x2245, 0x2248, 0x2260, 0x2261, 0x2264, 0x2265,
548	0x2282, 0x2283, 0x2284, 0x2286, 0x2287, 0x2295, 0x2297, 0x22a5, 0x22c5, 0x2310,
549	0x2320, 0x2321, 0x2329, 0x232a, 0x2469, 0x2500, 0x2502, 0x250c, 0x2510, 0x2514,
550	0x2518, 0x251c, 0x2524, 0x252c, 0x2534, 0x253c, 0x2550, 0x2551, 0x2552, 0x2553,
551	0x2554, 0x2555, 0x2556, 0x2557, 0x2558, 0x2559, 0x255a, 0x255b, 0x255c, 0x255d,
552	0x255e, 0x255f, 0x2560, 0x2561, 0x2562, 0x2563, 0x2564, 0x2565, 0x2566, 0x2567,
553	0x2568, 0x2569, 0x256a, 0x256b, 0x256c, 0x2580, 0x2584, 0x2588, 0x258c, 0x2590,
554	0x2591, 0x2592, 0x2593, 0x25a0, 0x25b2, 0x25bc, 0x25c6, 0x25ca, 0x25cf, 0x25d7,
555	0x2605, 0x260e, 0x261b, 0x261e, 0x2660, 0x2663, 0x2665, 0x2666, 0x2701, 0x2702,
556	0x2703, 0x2704, 0x2706, 0x2707, 0x2708, 0x2709, 0x270c, 0x270d, 0x270e, 0x270f,
557	0x2710, 0x2711, 0x2712, 0x2713, 0x2714, 0x2715, 0x2716, 0x2717, 0x2718, 0x2719,
558	0x271a, 0x271b, 0x271c, 0x271d, 0x271e, 0x271f, 0x2720, 0x2721, 0x2722, 0x2723,
559	0x2724, 0x2725, 0x2726, 0x2727, 0x2729, 0x272a, 0x272b, 0x272c, 0x272d, 0x272e,
560	0x272f, 0x2730, 0x2731, 0x2732, 0x2733, 0x2734, 0x2735, 0x2736, 0x2737, 0x2738,
561	0x2739, 0x273a, 0x273b, 0x273c, 0x273d, 0x273e, 0x273f, 0x2740, 0x2741, 0x2742,
562	0x2743, 0x2744, 0x2745, 0x2746, 0x2747, 0x2748, 0x2749, 0x274a, 0x274b, 0x274d,
563	0x274f, 0x2750, 0x2751, 0x2752, 0x2756, 0x2758, 0x2759, 0x275a, 0x275b, 0x275c,
564	0x275d, 0x275e, 0x2761, 0x2762, 0x2763, 0x2764, 0x2765, 0x2766, 0x2767, 0x277f,
565	0x2789, 0x2793, 0x2794, 0x2798, 0x2799, 0x279a, 0x279b, 0x279c, 0x279d, 0x279e,
566	0x279f, 0x27a0, 0x27a1, 0x27a2, 0x27a3, 0x27a4, 0x27a5, 0x27a6, 0x27a7, 0x27a8,
567	0x27a9, 0x27aa, 0x27ab, 0x27ac, 0x27ad, 0x27ae, 0x27af, 0x27b1, 0x27b2, 0x27b3,
568	0x27b4, 0x27b5, 0x27b6, 0x27b7, 0x27b8, 0x27b9, 0x27ba, 0x27bb, 0x27bc, 0x27bd,
569	0x27be, 0xf6d9, 0xf6da, 0xf6db, 0xf8d7, 0xf8d8, 0xf8d9, 0xf8da, 0xf8db, 0xf8dc,
570	0xf8dd, 0xf8de, 0xf8df, 0xf8e0, 0xf8e1, 0xf8e2, 0xf8e3, 0xf8e4, 0xf8e5, 0xf8e6,
571	0xf8e7, 0xf8e8, 0xf8e9, 0xf8ea, 0xf8eb, 0xf8ec, 0xf8ed, 0xf8ee, 0xf8ef, 0xf8f0,
572	0xf8f1, 0xf8f2, 0xf8f3, 0xf8f4, 0xf8f5, 0xf8f6, 0xf8f7, 0xf8f8, 0xf8f9, 0xf8fa,
573	0xf8fb, 0xf8fc, 0xf8fd, 0xf8fe, 0xfe7c, 0xfe7d,
574);
575
576
577//Setup VIM: ex: et ts=2 enc=utf-8 :
578