<?php
/**
* Smarty plugin
*
* @package Smarty
* @subpackage PluginsModifier
*/
/**
* Smarty wordwrap modifier plugin
* Type: modifier<br>
* Name: mb_wordwrap<br>
* Purpose: 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 $cut ignored parameter, just for the sake of
*
* @return string wrapped string
* @author Rodney Rehm
*/
function smarty_modifier_mb_wordwrap($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;
$_space = false;
foreach ($tokens as $_token) {
$token_length = mb_strlen($_token, Smarty::$_CHARSET);
$_tokens = array($_token);
if ($token_length > $width) {
if ($cut) {
$_tokens = preg_split('!(.{' . $width . '})!S' . Smarty::$_UTF8_MODIFIER,
$_token,
-1,
PREG_SPLIT_NO_EMPTY + PREG_SPLIT_DELIM_CAPTURE);
}
}
foreach ($_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) {
$t = mb_substr($t, 0, -1, Smarty::$_CHARSET);
}
if (!$_space) {
// add the break before the token
if (!empty($t)) {
$t .= $break;
}
$length = $token_length;
}
} else if ($token === "\n") {
// hard break must reset counters
$length = 0;
}
$_previous = $_space;
// add the token
$t .= $token;
}
}
return $t;
}
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