libs/plugins/modifier.escape.php

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<?php
/**
 * Smarty plugin
 * @package Smarty
 * @subpackage plugins
 */


/**
 * Smarty escape modifier plugin
 *
 * Type:     modifier<br>
 * Name:     escape<br>
 * Purpose:  Escape the string according to escapement type
 * @link http://smarty.php.net/manual/en/language.modifier.escape.php
 *          escape (Smarty online manual)
 * @author   Monte Ohrt <monte at ohrt dot com>
 * @param string
 * @param html|htmlall|url|quotes|hex|hexentity|javascript
 * @return string
 */
function smarty_modifier_escape($string, $esc_type = 'html', $char_set = 'ISO-8859-1')
{
    switch ($esc_type) {
        case 'html':
            return htmlspecialchars($string, ENT_QUOTES, $char_set);

        case 'htmlall':
            return htmlentities($string, ENT_QUOTES, $char_set);

        case 'url':
            return rawurlencode($string);

        case 'urlpathinfo':
            return str_replace('%2F','/',rawurlencode($string));
            
        case 'quotes':
            // escape unescaped single quotes
            return preg_replace("%(?<!\\\\)'%", "\\'", $string);

        case 'hex':
            // escape every character into hex
            $return = '';
            for ($x=0; $x < strlen($string); $x++) {
                $return .= '%' . bin2hex($string[$x]);
            }
            return $return;
            
        case 'hexentity':
            $return = '';
            for ($x=0; $x < strlen($string); $x++) {
                $return .= '&#x' . bin2hex($string[$x]) . ';';
            }
            return $return;

        case 'decentity':
            $return = '';
            for ($x=0; $x < strlen($string); $x++) {
                $return .= '&#' . ord($string[$x]) . ';';
            }