| 1 | <?php |
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| 2 | |
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| 3 | /** |
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| 4 | * @version $Id: trim.php,v 1.1 2006/02/25 13:50:17 harryf Exp $ |
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| 5 | * @package utf8 |
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| 6 | * @subpackage strings |
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| 7 | */ |
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| 8 | |
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| 9 | /** |
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| 10 | * UTF-8 aware replacement for ltrim() |
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| 11 | * Note: you only need to use this if you are supplying the charlist |
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| 12 | * optional arg and it contains UTF-8 characters. Otherwise ltrim will |
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| 13 | * work normally on a UTF-8 string |
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| 14 | * @author Andreas Gohr <andi@splitbrain.org> |
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| 15 | * @see http://www.php.net/ltrim |
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| 16 | * @see http://dev.splitbrain.org/view/darcs/dokuwiki/inc/utf8.php |
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| 17 | * @return string |
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| 18 | * @package utf8 |
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| 19 | * @subpackage strings |
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| 20 | */ |
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| 21 | function utf8_ltrim( $str, $charlist=false) |
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| 22 | { |
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| 23 | if($charlist === false) |
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| 24 | return ltrim($str); |
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| 25 | |
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| 26 | // Quote charlist for use in a characterclass |
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| 27 | $charlist = preg_replace('!([\\\\\\-\\]\\[/^])!', '\\\${1}', $charlist); |
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| 28 | |
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| 29 | return preg_replace('/^['.$charlist.']+/u', '', $str); |
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| 30 | } |
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| 31 | |
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| 32 | /** |
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| 33 | * UTF-8 aware replacement for rtrim() |
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| 34 | * Note: you only need to use this if you are supplying the charlist |
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| 35 | * optional arg and it contains UTF-8 characters. Otherwise rtrim will |
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| 36 | * work normally on a UTF-8 string |
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| 37 | * @author Andreas Gohr <andi@splitbrain.org> |
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| 38 | * @see http://www.php.net/rtrim |
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| 39 | * @see http://dev.splitbrain.org/view/darcs/dokuwiki/inc/utf8.php |
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| 40 | * @return string |
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| 41 | * @package utf8 |
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| 42 | * @subpackage strings |
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| 43 | */ |
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| 44 | function utf8_rtrim($str, $charlist=false) |
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| 45 | { |
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| 46 | if($charlist === false) |
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| 47 | return rtrim($str); |
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| 48 | |
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| 49 | // Quote charlist for use in a characterclass |
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| 50 | $charlist = preg_replace('!([\\\\\\-\\]\\[/^])!', '\\\${1}', $charlist); |
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| 51 | |
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| 52 | return preg_replace('/['.$charlist.']+$/u', '', $str); |
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| 53 | } |
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| 54 | |
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| 55 | //--------------------------------------------------------------- |
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| 56 | /** |
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| 57 | * UTF-8 aware replacement for trim() |
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| 58 | * Note: you only need to use this if you are supplying the charlist |
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| 59 | * optional arg and it contains UTF-8 characters. Otherwise trim will |
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| 60 | * work normally on a UTF-8 string |
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| 61 | * @author Andreas Gohr <andi@splitbrain.org> |
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| 62 | * @see http://www.php.net/trim |
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| 63 | * @see http://dev.splitbrain.org/view/darcs/dokuwiki/inc/utf8.php |
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| 64 | * @return string |
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| 65 | * @package utf8 |
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| 66 | * @subpackage strings |
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| 67 | */ |
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| 68 | function utf8_trim( $str, $charlist=false) |
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| 69 | { |
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| 70 | if($charlist === false) |
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| 71 | return trim($str); |
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| 72 | |
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| 73 | return utf8_ltrim(utf8_rtrim($str, $charlist), $charlist); |
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| 74 | } |
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