shared.mb_wordwrap.php
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shared.mb_wordwrap.php
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	<?php
	/**
	* Smarty shared plugin
	*
	* @package Smarty
	* @subpackage PluginsShared
	*/

	if (!function_exists('smarty_mb_wordwrap')) {

	/**
	* Wrap a string to a given number of characters
	*
	* @link http://php.net/manual/en/function.wordwrap.php for similarity
	* @param string $str the string to wrap
	* @param int $width the width of the output
	* @param string $break the character used to break the line
	* @param boolean $cut ignored parameter, just for the sake of
	* @return string wrapped string
	* @author Rodney Rehm
	*/
	function smarty_mb_wordwrap($str, $width=75, $break="\n", $cut=false)
	{
	// break words into tokens using white space as a delimiter
	$tokens = preg_split('!(\s)!S' . Smarty::$_UTF8_MODIFIER, $str, -1, PREG_SPLIT_NO_EMPTY + PREG_SPLIT_DELIM_CAPTURE);
	$length = 0;
	$t = '';
	$_previous = false;

	foreach ($tokens as $_token) {
	$token_length = mb_strlen($_token, Smarty::$_CHARSET);
	$_tokens = array($_token);
	if ($token_length > $width) {
	// remove last space
	$t = mb_substr($t, 0, -1, Smarty::$_CHARSET);
	$_previous = false;
	$length = 0;

	if ($cut) {
	$_tokens = preg_split('!(.{' . $width . '})!S' . Smarty::$_UTF8_MODIFIER, $_token, -1, PREG_SPLIT_NO_EMPTY + PREG_SPLIT_DELIM_CAPTURE);
	// broken words go on a new line
	$t .= $break;
	}
	}

	foreach ($_tokens as $token) {
	$_space = !!preg_match('!^\s$!S' . Smarty::$_UTF8_MODIFIER, $token);
	$token_length = mb_strlen($token, Smarty::$_CHARSET);
	$length += $token_length;

	if ($length > $width) {
	// remove space before inserted break
	if ($_previous && $token_length < $width) {
	$t = mb_substr($t, 0, -1, Smarty::$_CHARSET);
	}

	// add the break before the token
	$t .= $break;
	$length = $token_length;

	// skip space after inserting a break
	if ($_space) {
	$length = 0;
	continue;
	}
	} elseif ($token == "\n") {
	// hard break must reset counters
	$_previous = 0;
	$length = 0;
	} else {
	// remember if we had a space or not
	$_previous = $_space;
	}
	// add the token
	$t .= $token;
	}
	}

	return $t;
	}

	}

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