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83 lines
2.7 KiB
PHP
83 lines
2.7 KiB
PHP
<?php
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/**
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* Smarty shared plugin
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*
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* @package Smarty
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* @subpackage PluginsShared
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*/
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if(!function_exists('smarty_mb_wordwrap')) {
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/**
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* 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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* @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 $cut ignored parameter, just for the sake of
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* @return string wrapped string
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* @author Rodney Rehm
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*/
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function smarty_mb_wordwrap($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)!uS', $str, -1, PREG_SPLIT_NO_EMPTY + PREG_SPLIT_DELIM_CAPTURE);
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$length = 0;
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$t = '';
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$_previous = false;
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foreach ($tokens as $_token) {
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$token_length = mb_strlen($_token, SMARTY_RESOURCE_CHAR_SET);
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$_tokens = array($_token);
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if ($token_length > $width) {
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// remove last space
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$t = mb_substr($t, 0, -1, SMARTY_RESOURCE_CHAR_SET);
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$_previous = false;
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$length = 0;
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if ($cut) {
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$_tokens = preg_split('!(.{' . $width . '})!uS', $_token, -1, PREG_SPLIT_NO_EMPTY + PREG_SPLIT_DELIM_CAPTURE);
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// broken words go on a new line
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$t .= $break;
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}
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}
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foreach ($_tokens as $token) {
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$_space = !!preg_match('!^\s$!uS', $token);
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$token_length = mb_strlen($token, SMARTY_RESOURCE_CHAR_SET);
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$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 && $token_length < $width) {
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$t = mb_substr($t, 0, -1, SMARTY_RESOURCE_CHAR_SET);
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}
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// add the break before the token
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$t .= $break;
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$length = $token_length;
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// skip space after inserting a break
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if ($_space) {
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$length = 0;
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continue;
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}
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} else if ($token == "\n") {
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// hard break must reset counters
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$_previous = 0;
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$length = 0;
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} else {
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// remember if we had a space or not
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$_previous = $_space;
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}
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// add the token
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$t .= $token;
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}
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}
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return $t;
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}
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}
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?>
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