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76 lines
2.3 KiB
76 lines
2.3 KiB
6 years ago
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<?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 http://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('!(.{' . $width . '})!S' . Smarty::$_UTF8_MODIFIER,
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$_token,
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-1,
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PREG_SPLIT_NO_EMPTY + PREG_SPLIT_DELIM_CAPTURE);
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}
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}
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foreach ($_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 = $token_length;
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}
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} else if ($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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