vendor/phputf8/trim.php

   1 <?php
   2 /**
   3 * @version $Id: trim.php,v 1.1 2006/02/25 13:50:17 harryf Exp $
   4 * @package utf8
   5 * @subpackage strings
   6 */
   7
   8 //---------------------------------------------------------------
   9 /**
  10 * UTF-8 aware replacement for ltrim()
  11 * Note: you only need to use this if you are supplying the charlist
  12 * optional arg and it contains UTF-8 characters. Otherwise ltrim will
  13 * work normally on a UTF-8 string
  14 * @author Andreas Gohr <andi@splitbrain.org>
  15 * @see http://www.php.net/ltrim
  16 * @see http://dev.splitbrain.org/view/darcs/dokuwiki/inc/utf8.php
  17 * @return string
  18 * @package utf8
  19 * @subpackage strings
  20 */
  21 function utf8_ltrim( $str, $charlist = FALSE ) {
  22     if($charlist === FALSE) return ltrim($str);
  23
  24     //quote charlist for use in a characterclass
  25     $charlist = preg_replace('!([\\\\\\-\\]\\[/^])!','\\\${1}',$charlist);
  26
  27     return preg_replace('/^['.$charlist.']+/u','',$str);
  28 }
  29
  30 //---------------------------------------------------------------
  31 /**
  32 * UTF-8 aware replacement for rtrim()
  33 * Note: you only need to use this if you are supplying the charlist
  34 * optional arg and it contains UTF-8 characters. Otherwise rtrim will
  35 * work normally on a UTF-8 string
  36 * @author Andreas Gohr <andi@splitbrain.org>
  37 * @see http://www.php.net/rtrim
  38 * @see http://dev.splitbrain.org/view/darcs/dokuwiki/inc/utf8.php
  39 * @return string
  40 * @package utf8
  41 * @subpackage strings
  42 */
  43 function utf8_rtrim( $str, $charlist = FALSE ) {
  44     if($charlist === FALSE) return rtrim($str);
  45
  46     //quote charlist for use in a characterclass
  47     $charlist = preg_replace('!([\\\\\\-\\]\\[/^])!','\\\${1}',$charlist);
  48
  49     return preg_replace('/['.$charlist.']+$/u','',$str);
  50 }
  51
  52 //---------------------------------------------------------------
  53 /**
  54 * UTF-8 aware replacement for trim()
  55 * Note: you only need to use this if you are supplying the charlist
  56 * optional arg and it contains UTF-8 characters. Otherwise trim will
  57 * work normally on a UTF-8 string
  58 * @author Andreas Gohr <andi@splitbrain.org>
  59 * @see http://www.php.net/trim
  60 * @see http://dev.splitbrain.org/view/darcs/dokuwiki/inc/utf8.php
  61 * @return string
  62 * @package utf8
  63 * @subpackage strings
  64 */
  65 function utf8_trim( $str, $charlist = FALSE ) {
  66     if($charlist === FALSE) return trim($str);
  67     return utf8_ltrim(utf8_rtrim($str, $charlist), $charlist);
  68 }