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system/helpers/smiley_helper.php
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system/helpers/smiley_helper.php
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<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
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/**
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* CodeIgniter
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*
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* An open source application development framework for PHP 5.1.6 or newer
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*
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* @package CodeIgniter
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* @author ExpressionEngine Dev Team
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* @copyright Copyright (c) 2008 - 2011, EllisLab, Inc.
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* @license http://codeigniter.com/user_guide/license.html
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* @link http://codeigniter.com
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* @since Version 1.0
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* @filesource
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*/
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// ------------------------------------------------------------------------
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/**
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* CodeIgniter Smiley Helpers
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*
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* @package CodeIgniter
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* @subpackage Helpers
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* @category Helpers
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* @author ExpressionEngine Dev Team
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* @link http://codeigniter.com/user_guide/helpers/smiley_helper.html
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*/
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// ------------------------------------------------------------------------
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/**
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* Smiley Javascript
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*
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* Returns the javascript required for the smiley insertion. Optionally takes
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* an array of aliases to loosely couple the smiley array to the view.
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*
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* @access public
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* @param mixed alias name or array of alias->field_id pairs
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* @param string field_id if alias name was passed in
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* @return array
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*/
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if ( ! function_exists('smiley_js'))
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{
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function smiley_js($alias = '', $field_id = '', $inline = TRUE)
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{
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static $do_setup = TRUE;
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$r = '';
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if ($alias != '' && ! is_array($alias))
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{
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$alias = array($alias => $field_id);
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}
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if ($do_setup === TRUE)
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{
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$do_setup = FALSE;
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$m = array();
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if (is_array($alias))
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{
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foreach ($alias as $name => $id)
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{
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$m[] = '"'.$name.'" : "'.$id.'"';
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}
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}
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$m = '{'.implode(',', $m).'}';
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$r .= <<<EOF
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var smiley_map = {$m};
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function insert_smiley(smiley, field_id) {
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var el = document.getElementById(field_id), newStart;
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if ( ! el && smiley_map[field_id]) {
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el = document.getElementById(smiley_map[field_id]);
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if ( ! el)
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return false;
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}
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el.focus();
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smiley = " " + smiley;
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if ('selectionStart' in el) {
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newStart = el.selectionStart + smiley.length;
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el.value = el.value.substr(0, el.selectionStart) +
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smiley +
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el.value.substr(el.selectionEnd, el.value.length);
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el.setSelectionRange(newStart, newStart);
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}
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else if (document.selection) {
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document.selection.createRange().text = smiley;
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}
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}
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EOF;
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}
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else
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{
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if (is_array($alias))
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{
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foreach ($alias as $name => $id)
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{
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$r .= 'smiley_map["'.$name.'"] = "'.$id.'";'."\n";
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}
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}
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}
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if ($inline)
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{
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return '<script type="text/javascript" charset="utf-8">/*<![CDATA[ */'.$r.'// ]]></script>';
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}
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else
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{
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return $r;
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}
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}
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}
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// ------------------------------------------------------------------------
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/**
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* Get Clickable Smileys
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*
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* Returns an array of image tag links that can be clicked to be inserted
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* into a form field.
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*
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* @access public
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* @param string the URL to the folder containing the smiley images
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* @return array
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*/
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if ( ! function_exists('get_clickable_smileys'))
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{
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function get_clickable_smileys($image_url, $alias = '', $smileys = NULL)
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{
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// For backward compatibility with js_insert_smiley
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if (is_array($alias))
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{
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$smileys = $alias;
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}
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if ( ! is_array($smileys))
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{
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if (FALSE === ($smileys = _get_smiley_array()))
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{
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return $smileys;
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}
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}
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// Add a trailing slash to the file path if needed
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$image_url = rtrim($image_url, '/').'/';
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$used = array();
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foreach ($smileys as $key => $val)
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{
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// Keep duplicates from being used, which can happen if the
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// mapping array contains multiple identical replacements. For example:
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// :-) and :) might be replaced with the same image so both smileys
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// will be in the array.
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if (isset($used[$smileys[$key][0]]))
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{
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continue;
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}
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$link[] = "<a href=\"javascript:void(0);\" onclick=\"insert_smiley('".$key."', '".$alias."')\"><img src=\"".$image_url.$smileys[$key][0]."\" width=\"".$smileys[$key][1]."\" height=\"".$smileys[$key][2]."\" alt=\"".$smileys[$key][3]."\" style=\"border:0;\" /></a>";
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$used[$smileys[$key][0]] = TRUE;
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}
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return $link;
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}
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}
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// ------------------------------------------------------------------------
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/**
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* Parse Smileys
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*
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* Takes a string as input and swaps any contained smileys for the actual image
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*
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* @access public
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* @param string the text to be parsed
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* @param string the URL to the folder containing the smiley images
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* @return string
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*/
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if ( ! function_exists('parse_smileys'))
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{
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function parse_smileys($str = '', $image_url = '', $smileys = NULL)
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{
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if ($image_url == '')
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{
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return $str;
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}
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if ( ! is_array($smileys))
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{
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if (FALSE === ($smileys = _get_smiley_array()))
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{
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return $str;
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}
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}
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// Add a trailing slash to the file path if needed
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$image_url = preg_replace("/(.+?)\/*$/", "\\1/", $image_url);
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foreach ($smileys as $key => $val)
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{
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$str = str_replace($key, "<img src=\"".$image_url.$smileys[$key][0]."\" width=\"".$smileys[$key][1]."\" height=\"".$smileys[$key][2]."\" alt=\"".$smileys[$key][3]."\" style=\"border:0;\" />", $str);
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}
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return $str;
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}
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}
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// ------------------------------------------------------------------------
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/**
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* Get Smiley Array
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*
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* Fetches the config/smiley.php file
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*
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* @access private
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* @return mixed
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*/
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if ( ! function_exists('_get_smiley_array'))
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{
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function _get_smiley_array()
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{
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if (defined('ENVIRONMENT') AND file_exists(APPPATH.'config/'.ENVIRONMENT.'/smileys.php'))
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{
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include(APPPATH.'config/'.ENVIRONMENT.'/smileys.php');
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}
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elseif (file_exists(APPPATH.'config/smileys.php'))
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{
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include(APPPATH.'config/smileys.php');
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}
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if (isset($smileys) AND is_array($smileys))
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{
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return $smileys;
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}
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return FALSE;
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}
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}
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// ------------------------------------------------------------------------
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/**
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* JS Insert Smiley
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*
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* Generates the javascript function needed to insert smileys into a form field
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*
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* DEPRECATED as of version 1.7.2, use smiley_js instead
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*
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* @access public
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* @param string form name
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* @param string field name
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* @return string
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*/
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if ( ! function_exists('js_insert_smiley'))
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{
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function js_insert_smiley($form_name = '', $form_field = '')
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{
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return <<<EOF
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<script type="text/javascript">
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function insert_smiley(smiley)
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{
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document.{$form_name}.{$form_field}.value += " " + smiley;
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}
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</script>
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EOF;
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}
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}
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/* End of file smiley_helper.php */
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/* Location: ./system/helpers/smiley_helper.php */
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