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php-e107/e107_handlers/e_parse_class.php

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<?php
/*
+ ----------------------------------------------------------------------------+
| e107 website system
|
| Steve Dunstan 2001-2002
| http://e107.org
| jalist@e107.org
|
| Released under the terms and conditions of the
| GNU General Public License (http://gnu.org).
|
| $Source: /cvs_backup/e107_0.8/e107_handlers/e_parse_class.php,v $
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| $Revision: 1.2 $
| $Date: 2007-01-12 21:05:20 $
| $Author: sweetas $
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+----------------------------------------------------------------------------+
*/
if (!defined('e107_INIT')) { exit; }
define ("E_NL", chr(2));
class e_parse
{
var $e_sc;
var $e_bb;
var $e_pf;
var $e_emote;
var $e_hook;
var $search = array('&#39;', '&#039;', '&quot;', 'onerror', '&gt;', '&amp;#039;', '&amp;quot;');
var $replace = array("'", "'", '"', 'one<i></i>rror', '>', "'", '"');
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var $e_highlighting;
var $e_query;
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function toDB($data, $nostrip = false, $no_encode = false, $original_author = false, $mod = false)
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{
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/**
* $nostrip: toDB() assumes all data is GPC ($_GET, $_POST, $_COOKIE) unless you indicate otherwise by setting this var to true.
* If magic quotes is enabled on the server and you do not tell toDB() that the data is non GPC then slashes will be stripped when they should not be.
* $no_encode: This var should nearly always be false. It is used by the save_prefs() function to preserve html content within prefs even when
* the save_prefs() function has been called by a non admin user / user without html posting permissions.
* $mod: although not used in core, the 'no_html' and 'no_php' modifiers are available for plugins to blanket prevent html and php posting regardless
* of posting permissions.
*/
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global $pref;
if (is_array($data)) {
foreach ($data as $key => $var) {
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$ret[$key] = $this -> toDB($var, $nostrip, $no_encode, $original_author, $mod);
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}
} else {
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if (MAGIC_QUOTES_GPC == true && $nostrip == false) {
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$data = stripslashes($data);
}
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if (isset($pref['post_html']) && check_class($pref['post_html']))
{
$no_encode = true;
}
if (is_numeric($original_author) && !check_class($pref['post_html'], '', $original_author))
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{
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$no_encode = false;
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}
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if ($no_encode === true && strpos($mod, 'no_html') === false)
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{
$search = array('$', '"', "'", '\\', '<?');
$replace = array('&#036;','&quot;','&#039;', '&#092;', '&lt;?');
$ret = str_replace($search, $replace, $data);
} else {
$data = htmlspecialchars($data, ENT_QUOTES, CHARSET);
$data = str_replace('\\', '&#092;', $data);
$ret = preg_replace("/&amp;#(\d*?);/", "&#\\1;", $data);
}
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if (!check_class($pref['php_bbcode']) || (is_numeric($original_author) && !check_class($pref['php_bbcode'], '', $original_author)) || strpos($mod, 'no_php') !== false)
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{
$ret = str_replace(array("[php]", "[/php]"), array("&#91;php&#93;", "&#91;/php&#93;"), $ret);
}
}
return $ret;
}
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function toForm($text)
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{
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if ($text == '') { return ''; }
$search = array('&#036;', '&quot;', '<', '>');
$replace = array('$', '"', '&lt;', '&gt;');
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$text = str_replace($search, $replace, $text);
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if (e_WYSIWYG !== true){
$text = str_replace("&nbsp;", " ", $text); // fix for utf-8 issue with html_entity_decode();
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}
return $text;
}
function post_toForm($text) {
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if (MAGIC_QUOTES_GPC == true) {
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$text = stripslashes($text);
}
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return str_replace(array( "'", '"', "<", ">"), array("&#039;", "&quot;", "&lt;", "&gt;"), $text);
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}
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function post_toHTML($text, $original_author = false, $extra = '', $mod = false) {
$text = $this -> toDB($text, false, false, $original_author, $mod);
return $this -> toHTML($text, true, $extra);
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}
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function parseTemplate($text, $parseSCFiles = TRUE, $extraCodes = "") {
if (!is_object($this->e_sc))
{
require_once(e_HANDLER."shortcode_handler.php");
$this->e_sc = new e_shortcode;
}
return $this->e_sc->parseCodes($text, $parseSCFiles, $extraCodes);
}
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function htmlwrap($str, $width, $break = "\n", $nobreak = "", $nobr = "pre", $utf = false)
{
/*
* htmlwrap() function - v1.1
* Copyright (c) 2004 Brian Huisman AKA GreyWyvern
* http://www.greywyvern.com/code/php/htmlwrap_1.1.php.txt
*
* This program may be distributed under the terms of the GPL
* - http://www.gnu.org/licenses/gpl.txt
*/
$content = preg_split("/([<>])/", $str, -1, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY);
$nobreak = explode(" ", $nobreak);
$nobr = explode(" ", $nobr);
$intag = false;
$innbk = array();
$innbr = array();
$drain = "";
$utf = ($utf || CHARSET == 'utf-8') ? "u" : "";
$lbrks = "/?!%)-}]\\\"':;";
if ($break == "\r")
{
$break = "\n";
}
while (list(, $value) = each($content))
{
switch ($value)
{
case "<": $intag = true; break;
case ">": $intag = false; break;
default:
if ($intag)
{
if ($value{0} != "/")
{
preg_match('/^(.*?)(\s|$)/'.$utf, $value, $t);
if ((!count($innbk) && in_array($t[1], $nobreak)) || in_array($t[1], $innbk)) $innbk[] = $t[1];
if ((!count($innbr) && in_array($t[1], $nobr)) || in_array($t[1], $innbr)) $innbr[] = $t[1];
} else {
if (in_array(substr($value, 1), $innbk)) unset($innbk[count($innbk)]);
if (in_array(substr($value, 1), $innbr)) unset($innbr[count($innbr)]);
}
} else if ($value)
{
if (!count($innbr)) $value = str_replace("\n", "\r", str_replace("\r", "", $value));
if (!count($innbk))
{
do
{
$store = $value;
if (preg_match("/^(.*?\s|^)(([^\s&]|&(\w{2,5}|#\d{2,4});){".$width."})(?!(".preg_quote($break, "/").'|\s))(.*)$/s'.$utf, $value, $match))
{
for ($x = 0, $ledge = 0; $x < strlen($lbrks); $x++) $ledge = max($ledge, strrpos($match[2], $lbrks{$x}));
if (!$ledge) $ledge = strlen($match[2]) - 1;
$value = $match[1].substr($match[2], 0, $ledge + 1).$break.substr($match[2], $ledge + 1).$match[6];
}
}
while ($store != $value);
}
if (!count($innbr)) $value = str_replace("\r", E_NL, $value);
}
}
$drain .= $value;
}
return $drain;
}
function html_truncate ($text, $len = 200, $more = "[more]")
{
$pos = 0;
$curlen = 0;
$tmp_pos = 0;
while($curlen < $len && $curlen < strlen($text))
{
switch($text{$pos})
{
case "<" :
if($text{$pos+1} == "/")
{
$closing_tag = TRUE;
}
$intag = TRUE;
$tmp_pos = $pos-1;
$pos++;
break;
case ">" :
if($text{$pos-1} == "/")
{
$closing_tag = TRUE;
}
if($closing_tag == TRUE)
{
$tmp_pos = 0;
$closing_tag = FALSE;
}
$intag = FALSE;
$pos++;
break;
case "&" :
if($text{$pos+1} == "#")
{
$end = strpos(substr($text, $pos, 7), ";");
if($end !== FALSE)
{
$pos+=($end+1);
if(!$intag) {$curlen++;}
break;
}
}
else
{
$pos++;
if(!$intag) {$curlen++;}
break;
}
default:
$pos++;
if(!$intag) {$curlen++;}
break;
}
}
$ret = ($tmp_pos > 0 ? substr($text, 0, $tmp_pos) : substr($text, 0, $pos));
if($pos < strlen($text))
{
$ret = $ret.$more;
}
return $ret;
}
function text_truncate($text, $len = 200, $more = "[more]") {
if(strlen($text) <= $len) {
return $text;
} else { // utf-8 compatible substr()
return preg_replace('#^(?:[\x00-\x7F]|[\xC0-\xFF][\x80-\xBF]+){0,0}'.
'((?:[\x00-\x7F]|[\xC0-\xFF][\x80-\xBF]+){0,'.$len.'}).*#s',
'$1',$text).$more;
}
}
function textclean ($text, $wrap=100)
{
$text = str_replace ("\n\n\n", "\n\n", $text);
$text = $this -> htmlwrap($text, $wrap);
$text = str_replace (array ("<br /> ", " <br />", " <br /> "), "<br />", $text);
/* we can remove any linebreaks added by htmlwrap function as any \n's will be converted later anyway */
return $text;
}
//
// Test for text highlighting, and determine the text highlighting transformation
// Returns TRUE if highlighting is active for this page display
//
function checkHighlighting()
{
global $pref;
if (!defined('e_SELF'))
{
return FALSE; // Still in startup, so can't calculate highlighting
}
if (!isset($this->e_highlighting))
{
$this->e_highlighting = FALSE;
$shr = (isset($_SERVER['HTTP_REFERER']) ? $_SERVER['HTTP_REFERER'] : "");
if ($pref['search_highlight'] && (strpos(e_SELF, 'search.php') === FALSE) && ((strpos($shr, 'q=') !== FALSE) || (strpos($shr, 'p=') !== FALSE)))
{
$this->e_highlighting = TRUE;
if (!isset($this -> e_query))
{
$query = preg_match('#(q|p)=(.*?)(&|$)#', $shr, $matches);
$this -> e_query = str_replace(array('+', '*', '"', ' '), array('', '.*?', '', '\b|\b'), trim(urldecode($matches[2])));
}
}
}
return $this->e_highlighting;
}
function toHTML($text, $parseBB = FALSE, $modifiers = "", $postID = "", $wrap=FALSE) {
if ($text == '')
{
return $text;
}
global $pref, $fromadmin;
$fromadmin = strpos($modifiers, "fromadmin");
//$text = str_replace(array("&#092;&quot;", "&#092;&#039;", "&#092;&#092;"), array("&quot;", "&#039;", "&#092;"), $text);
// support for converting defines(constants) within text. eg. Lan_XXXX - must be the entire text string (i.e. not embedded)
if(strpos($modifiers,"defs") !== FALSE && strlen($text) < 25 && defined(trim($text))){
return constant(trim($text));
}
// replace all {e_XXX} constants with their e107 value
if(strpos($modifiers, "constants") !== FALSE)
{
$text = $this->replaceConstants($text);
}
if(!$wrap && $pref['main_wordwrap']) $wrap = $pref['main_wordwrap'];
$text = " ".$text;
// Prepare for line-break compression. Avoid compressing newlines in embedded scripts and CSS
if (strpos($modifiers, 'nobreak') === FALSE) {
$text = preg_replace("#>\s*[\r]*\n[\r]*#", ">", $text);
preg_match_all("#<(script|style)[^>]+>.*?</(script|style)>#is", $text, $embeds);
$text = preg_replace("#<(script|style)[^>]+>.*?</(script|style)>#is", "<|>", $text);
}
// Convert URL's to clickable links, unless modifiers or prefs override
if($pref['make_clickable'] && strpos($modifiers, 'no_make_clickable') === FALSE) {
if($pref['link_replace'] && strpos($modifiers, 'no_replace') === FALSE) {
$_ext = ($pref['links_new_window'] ? " rel=\"external\"" : "");
$text = preg_replace("#(^|[\n ])([\w]+?://[^ \"\n\r\t<]*)#is", "\\1<a href=\"\\2\" {$_ext}>".$pref['link_text']."</a>", $text);
$text = preg_replace("#(^|[\n ])((www|ftp)\.[^ \"\t\n\r<]*)#is", "\\1<a href=\"http://\\2\" {$_ext}>".$pref['link_text']."</a>", $text);
if(CHARSET != "utf-8" && CHARSET != "UTF-8"){
$email_text = ($pref['email_text']) ? $this->replaceConstants($pref['email_text']) : "\\1\\2&copy;\\3";
}else{
$email_text = ($pref['email_text']) ? $this->replaceConstants($pref['email_text']) : "\\1\\2©\\3";
}
$text = preg_replace("#([\n ])([a-z0-9\-_.]+?)@([\w\-]+\.([\w\-\.]+\.)*[\w]+)#i", "\\1<a rel='external' href='javascript:window.location=\"mai\"+\"lto:\"+\"\\2\"+\"@\"+\"\\3\";self.close();' onmouseover='window.status=\"mai\"+\"lto:\"+\"\\2\"+\"@\"+\"\\3\"; return true;' onmouseout='window.status=\"\";return true;'>".$email_text."</a>", $text);
} else {
$text = preg_replace("#(^|[\n ])([\w]+?://[^ \"\n\r\t<,]*)#is", "\\1<a href=\"\\2\" rel=\"external\">\\2</a>", $text);
$text = preg_replace("#(^|[\n ])((www|ftp)\.[^ \"\t\n\r<,]*)#is", "\\1<a href=\"http://\\2\" rel=\"external\">\\2</a>", $text);
$text = preg_replace("#([\n ])([a-z0-9\-_.]+?)@([\w\-]+\.([\w\-\.]+\.)*[\w]+)#i", "\\1<a rel='external' href='javascript:window.location=\"mai\"+\"lto:\"+\"\\2\"+\"@\"+\"\\3\";self.close();' onmouseover='window.status=\"mai\"+\"lto:\"+\"\\2\"+\"@\"+\"\\3\"; return true;' onmouseout='window.status=\"\";return true;'>-email-</a>", $text);
}
}
// Convert emoticons to graphical icons, unless modifiers override
if (strpos($modifiers, 'emotes_off') === FALSE) {
if ($pref['smiley_activate'] || strpos($modifiers,'emotes_on') !== FALSE) {
if (!is_object($this->e_emote)) {
require_once(e_HANDLER.'emote_filter.php');
$this->e_emote = new e_emoteFilter;
}
$text = $this->e_emote->filterEmotes($text);
}
}
// Reduce multiple newlines in all forms to a single newline character, except for embedded scripts and CSS
if (strpos($modifiers, 'nobreak') === FALSE) {
$text = preg_replace("#[\r]*\n[\r]*#", E_NL, $text);
foreach ($embeds[0] as $embed) {
$text = preg_replace("#<\|>#", $embed, $text, 1);
}
}
// Restore entity form of quotes and such to single characters, except for text destined for tag attributes or JS.
if (strpos($modifiers, 'value') === FALSE) { // output not used for attribute values.
$text = str_replace($this -> search, $this -> replace, $text);
}else{ // output used for attribute values.
$text = str_replace($this -> replace, $this -> search, $text);
}
// Start parse [bb][/bb] codes
if ($parseBB === TRUE) {
if (!is_object($this->e_bb)) {
require_once(e_HANDLER.'bbcode_handler.php');
$this->e_bb = new e_bbcode;
}
$text = $this->e_bb->parseBBCodes($text, $postID);
}
// End parse [bb][/bb] codes
// profanity filter
if ($pref['profanity_filter']) {
if (!is_object($this->e_pf)) {
require_once(e_HANDLER."profanity_filter.php");
$this->e_pf = new e_profanityFilter;
}
$text = $this->e_pf->filterProfanities($text);
}
// Optional short-code conversion
if (strpos($modifiers,'parse_sc') !== FALSE)
{
$text = $this->parseTemplate($text, TRUE);
}
//Run any hooked in parsers
if(isset($pref['tohtml_hook']) && $pref['tohtml_hook'])
{
foreach(explode(",",$pref['tohtml_hook']) as $hook)
{
if (strpos($modifiers, 'no_hook') === FALSE)
{
if (!is_object($this->e_hook[$hook]))
{
require_once(e_PLUGIN.$hook."/".$hook.".php");
$hook_class = "e_".$hook;
$this->e_hook[$hook] = new $hook_class;
}
$text = $this->e_hook[$hook]->$hook($text);
}
}
}
if (strpos($modifiers, 'nobreak') === FALSE) {
$text = $this -> textclean($text, $wrap);
}
// Search Highlight
if (strpos($modifiers, 'emotes_off') === FALSE) {
if ($this->checkHighlighting())
{
$text = $this -> e_highlight($text, $this -> e_query);
}
}
$nl_replace = "<br />";
if (strpos($modifiers, 'nobreak') !== FALSE)
{
$nl_replace = '';
}
elseif (strpos($modifiers, 'retain_nl') !== FALSE)
{
$nl_replace = "\n";
}
$text = str_replace(E_NL, $nl_replace, $text);
return trim($text);
}
function toAttribute($text) {
$text = str_replace("&amp;","&",$text); // URLs posted without HTML access may have an &amp; in them.
$text = htmlspecialchars($text); // Xhtml compliance.
if (!preg_match('/&#|\'|"|\(|\)|<|>/s', $text)) {
$text = $this->replaceConstants($text);
return $text;
} else {
return '';
}
}
function toJS($stringarray) {
$search = array("\r\n","\r","<br />","'");
$replace = array("\\n","","\\n","\'");
$stringarray = str_replace($search, $replace, $stringarray);
$stringarray = strip_tags($stringarray);
$trans_tbl = get_html_translation_table (HTML_ENTITIES);
$trans_tbl = array_flip ($trans_tbl);
return strtr ($stringarray, $trans_tbl);
}
function toRss($text,$tags=FALSE)
{
if($tags != TRUE)
{
$text = $this -> toHTML($text,TRUE);
$text = strip_tags($text);
}
$text = $this->toEmail($text);
$search = array("&amp;#039;", "&amp;#036;", "&#039;", "&#036;"," & ", e_BASE, "href='request.php");
$replace = array("'", '$', "'", '$',' &amp; ', SITEURL, "href='".SITEURL."request.php" );
$text = str_replace($search, $replace, $text);
if($tags == TRUE && ($text))
{
$text = "<![CDATA[".$text."]]>";
}
return $text;
}
//Convert specific characters back to original form, for use in storing code (or regex) values in the db.
function toText($text)
{
$search = array("&amp;#039;", "&amp;#036;", "&#039;", "&#036;", "&#092;", "&amp;#092;");
$replace = array("'", '$', "'", '$', "\\", "\\");
$text = str_replace($search, $replace, $text);
return $text;
}
//
// $nonrelative:
// "full" = produce absolute URL path, e.g. http://sitename.com/e107_plugins/etc
// TRUE = produce truncated URL path, e.g. e107plugins/etc
// "" (default) = URL's get relative path e.g. ../e107_plugins/etc
// AND all other e107 constants are replaced
//
// only an ADMIN user can convert {e_ADMIN}
//
function replaceConstants($text, $nonrelative = "", $all = false)
{
if($nonrelative != "")
{
global $IMAGES_DIRECTORY, $PLUGINS_DIRECTORY, $FILES_DIRECTORY, $THEMES_DIRECTORY,$DOWNLOADS_DIRECTORY,$ADMIN_DIRECTORY;
$replace_relative = array("",$IMAGES_DIRECTORY,$PLUGINS_DIRECTORY,$FILES_DIRECTORY,$THEMES_DIRECTORY,$DOWNLOADS_DIRECTORY);
$replace_absolute = array(SITEURL,SITEURL.$IMAGES_DIRECTORY,SITEURL.$PLUGINS_DIRECTORY,SITEURL.$FILES_DIRECTORY,SITEURL.$THEMES_DIRECTORY,SITEURL.$DOWNLOADS_DIRECTORY);
$search = array("{e_BASE}","{e_IMAGE}","{e_PLUGIN}","{e_FILE}","{e_THEME}","{e_DOWNLOAD}");
if (ADMIN) {
$replace_relative[] = $ADMIN_DIRECTORY;
$replace_absolute[] = SITEURL.$ADMIN_DIRECTORY;
$search[] = "{e_ADMIN}";
}
$replace = ((string)$nonrelative == "full" ) ? $replace_absolute : $replace_relative;
return str_replace($search,$replace,$text);
}
$pattern = ($all ? "#\{([A-Za-z_0-9]*)\}#s" : "#\{(e_[A-Z]*)\}#s");
$text = preg_replace_callback($pattern, array($this, 'doReplace'), $text);
$theme_path = (defined("THEME")) ? constant("THEME") : "";
$text = str_replace("{THEME}",$theme_path,$text);
return $text;
}
function doReplace($matches)
{
if(defined($matches[1]) && ($matches[1] != 'e_ADMIN' || ADMIN))
{
return constant($matches[1]);
}
return $matches[1];
}
function createConstants($url,$mode=0){
global $IMAGES_DIRECTORY,$PLUGINS_DIRECTORY,$FILES_DIRECTORY,$THEMES_DIRECTORY,$DOWNLOADS_DIRECTORY,$ADMIN_DIRECTORY;
if($mode == 0) // folder name only.
{
$tmp = array(
"{"."e_IMAGE"."}"=>$IMAGES_DIRECTORY,
"{"."e_PLUGIN"."}"=>$PLUGINS_DIRECTORY,
"{"."e_FILE"."}"=>$FILES_DIRECTORY,
"{"."e_THEME"."}"=>$THEMES_DIRECTORY,
"{"."e_DOWNLOAD"."}"=>$DOWNLOADS_DIRECTORY,
"{"."e_ADMIN"."}"=>$ADMIN_DIRECTORY,
);
}
elseif($mode == 1) // relative path
{
$tmp = array(
"{"."e_IMAGE"."}"=>e_IMAGE,
"{"."e_PLUGIN"."}"=>e_PLUGIN,
"{"."e_FILE"."}"=>e_FILE,
"{"."e_THEME"."}"=>e_THEME,
"{"."e_DOWNLOAD"."}"=>e_DOWNLOAD,
"{"."e_ADMIN"."}"=>e_ADMIN
);
}
foreach($tmp as $key=>$val)
{
$len = strlen($val);
if(substr($url,0,$len) == $val)
{
return str_replace($val,$key,$url);
}
}
return $url;
}
function e_highlight($text, $match) {
preg_match_all("#<[^>]+>#", $text, $tags);
$text = preg_replace("#<[^>]+>#", "<|>", $text);
$text = preg_replace("#(\b".$match."\b)#i", "<span class='searchhighlight'>\\1</span>", $text);
foreach ($tags[0] as $tag) {
$text = preg_replace("#<\|>#", $tag, $text, 1);
}
return $text;
}
function toEmail($text,$posted="")
{
if ($posted === TRUE && MAGIC_QUOTES_GPC) {
$text = stripslashes($text);
}
$text = $this->replaceConstants($text,"full");
$text = $this->toHTML($text,TRUE,"parse_sc");
return $text;
}
}
?>
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