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71 lines
2.3 KiB
71 lines
2.3 KiB
<?php |
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/** |
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* Smarty plugin |
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* |
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* @package Smarty |
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* @subpackage PluginsModifier |
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*/ |
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/** |
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* Smarty wordwrap modifier plugin |
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* Type: modifier |
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* Name: mb_wordwrap |
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* Purpose: Wrap a string to a given number of characters |
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* |
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* @link https://php.net/manual/en/function.wordwrap.php for similarity |
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* |
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* @param string $str the string to wrap |
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* @param int $width the width of the output |
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* @param string $break the character used to break the line |
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* @param boolean $cut ignored parameter, just for the sake of |
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* |
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* @return string wrapped string |
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* @author Rodney Rehm |
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*/ |
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function smarty_modifier_mb_wordwrap($str, $width = 75, $break = "\n", $cut = false) |
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{ |
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// break words into tokens using white space as a delimiter |
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$tokens = preg_split('!(\s)!S' . Smarty::$_UTF8_MODIFIER, $str, -1, PREG_SPLIT_NO_EMPTY + PREG_SPLIT_DELIM_CAPTURE); |
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$length = 0; |
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$t = ''; |
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$_previous = false; |
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$_space = false; |
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foreach ($tokens as $_token) { |
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$token_length = mb_strlen($_token, Smarty::$_CHARSET); |
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$_tokens = array($_token); |
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if ($token_length > $width) { |
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if ($cut) { |
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$_tokens = preg_split( |
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'!(.{' . $width . '})!S' . Smarty::$_UTF8_MODIFIER, |
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$_token, |
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-1, |
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PREG_SPLIT_NO_EMPTY + PREG_SPLIT_DELIM_CAPTURE |
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); |
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} |
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} |
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foreach ($_tokens as $token) { |
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$_space = !!preg_match('!^\s$!S' . Smarty::$_UTF8_MODIFIER, $token); |
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$token_length = mb_strlen($token, Smarty::$_CHARSET); |
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$length += $token_length; |
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if ($length > $width) { |
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// remove space before inserted break |
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if ($_previous) { |
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$t = mb_substr($t, 0, -1, Smarty::$_CHARSET); |
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} |
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if (!$_space) { |
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// add the break before the token |
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if (!empty($t)) { |
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$t .= $break; |
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} |
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$length = $token_length; |
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} |
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} elseif ($token === "\n") { |
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// hard break must reset counters |
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$length = 0; |
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} |
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$_previous = $_space; |
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// add the token |
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$t .= $token; |
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} |
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} |
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return $t; |
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}
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