Not pharsing syntax in certan blocks - Custom Syntax Parser

[thetooth]

Hi i am working on my very own cms so far its almost complete but one thing that still has a few issues is the syntax parser. the thing is it works fine but it works to well basicly what i need is to be able to insert say #code[some code here] and any syntax that the parser is designed to parse simply wont be but everything below and above it will function normaly.

 

parser class snippent:

class Parser{
//Wiki Syntax
var $sand = array(
	'===' => 'h2',
	'==' => 'h3'
);
//Link System
var $internal = array(
	'\-' => array('a href')
);
//BBCode Tags
var $tags = array(
	'b' => 'strong',
	'i' => 'em',
	'u' => 'span style="text-decoration:underline"',
	'quote' => 'blockquote',
	's' => 'span style="text-decoration: line-through"',
	'list' => 'ul',
	'\*' => 'li',
	'code' => 'pre'
);
//Tags that must be mapped to diffierent parts
var $mapped = array(
	'url' => array('a','href',true),
	'img' => array('img','src',false)
);
//Tags with atributes
var $tags_with_att = array('color' => array('font','color'),'size' => array('font','size'),'url' => array('a','href'));
//Gotta have smilies
var $smilies = array(
	'' => 'smileys/smile.gif',
	'' => 'smileys/sad.gif',
	'XD' => 'smileys/biggrin.gif',
	':"(' => 'smileys/cry.gif',
	'' => 'smileys/tongue.gif',
	'' => 'smileys/suprised.gif',
	':@' => 'smileys/mad.gif',
	':|' => 'smileys/confused.gif'
);
//Config Variables
//Convert new line charactes to linebreaks?
var $convert_newlines = false;
//Parse For smilies?
var $parse_smilies = true;
//auto link urls(http and ftp), and email addresses?
var $auto_links = true;
//Internal Storage
var $_code = '';
function BB_Code($new=true,$parse=true,$links=true){
	$this->convert_newlines = $new;
	$this->parse_smilies = $parse;
	$this->auto_links = $links;
}
function parse($code){
	$this->_code = $code;
	//$this->_strip_html();// Maybe you will need this...
	$this->_parse_sand();
	$this->_parse_internal();
	$this->_parse_tags();
	$this->_parse_mapped();
	$this->_parse_tags_with_att();
	$this->_parse_smilies();
	$this->_parse_links();
	$this->_convert_nl();
	return $this->_code;
}
function _strip_html(){
	$this->_code = strip_tags($this->_code);
}
function _convert_nl(){
	if($this->convert_newlines){
		$this->_code = nl2br($this->_code);
	}
}
function _parse_sand(){
	foreach($this->sand as $old=>$new){
		$ex = explode(' ',$new);
		$this->_code = preg_replace('/'.$old.'(.+?)'.$old.'/is','<'.$new.'>$1</'.$ex[0].'>',$this->_code);
	}
}
function _parse_internal(){
	foreach($this->internal as $tag=>$data){
		//Use URL rewrite engine?
		$rewrite = false;
		if($rewrite == true){
			$this->_code = preg_replace('/\['.$tag.'(.+?)\|(.+?)\]/is','<'.$data[0].'="/$1">$2</a>',$this->_code);
		}else{
			$this->_code = preg_replace('/\['.$tag.'(.+?)\|(.+?)\]/is','<'.$data[0].'="?page=$1">$2</a>',$this->_code);
		}
		//$this->_code = preg_replace('/\['.$tag.'(.+?)\]/is','<'.$data[0].'="/$1">$1</a>',$this->_code);//FIX ME
	}
}
function _parse_tags(){
	foreach($this->tags as $old=>$new){
		$ex = explode(' ',$new);
		$this->_code = preg_replace('/\['.$old.'\](.+?)\[\/'.$old.'\]/is','<'.$new.'>$1</'.$ex[0].'>',$this->_code);
	}
}
function _parse_mapped(){
	foreach($this->mapped as $tag=>$data){
		$reg = '/\['.$tag.'\](.+?)\[\/'.$tag.'\]/is';
		if($data[2]){
			$this->_code = preg_replace($reg,'<'.$data[0].' '.$data[1].'="$1">$1</'.$data[0].'>',$this->_code);
		}
		else{
			$this->_code = preg_replace($reg,'<'.$data[0].' '.$data[1].'="$1">',$this->_code);
		}
	}
}
function _parse_tags_with_att(){
	foreach($this->tags_with_att as $tag=>$data){
		$this->_code = preg_replace('/\['.$tag.'=(.+?)\](.+?)\[\/'.$tag.'\]/is','<'.$data[0].' '.$data[1].'="$1">$2</'.$data[0].'>',$this->_code);
	}
}
function _parse_smilies(){
	if($this->parse_smilies){
		foreach($this->smilies as $s=>$im){
			$this->_code = str_replace($s,'<img src="'.$im.'" alt="" />',$this->_code);
		}
	}
}
function _parse_links(){
	if($this->auto_links){
		$this->_code = preg_replace('/([^"])(http:\/\/|ftp:\/\/)([^\s,]*)/i','$1<a href="$2$3">$2$3</a>',$this->_code);
		$this->_code = preg_replace('/([^"])([A-Z0-9._%-]+@[A-Z0-9.-]+\.[A-Z]{2,4})/i','$1<a href="mailto:$2">$2</a>',$this->_code);
	}
}
function addSand($old,$new){
	$this->tags[$old] = $new;
}
function addinternal($bb,$html,$att){
	$this->internal[$bb] = array($html,$att);
}
function addTag($old,$new){
	$this->tags[$old] = $new;
}
function addMapped($bb,$html,$att,$end=true){
	$this->mapped[$bb] = array($html,$att,$end);
}
function addTagWithAttribute($bb,$html,$att){
	$this->tags_with_att[$bb] = array($html,$att);
}
function addSmiley($code,$src){
	$this->smilies[$code] = $src;
}
}

 

As you can see all it really dose is gos though the code and replaces the tags with there html alteritives but the thing is i want to be able to add a function to it that will protect certan sections of the code from being parsed.

 

the page is call with file_get_contents so here is what i use to call it below

$full = $config["path"] . $page . $config["ext"];
if (!is_file($full) || is_dir($full) || !file_exists($full)){
echo $fail['404'];
} else { // Send to parser or render page contents //
if(!$_REQUEST['act'] == 'Edit'){
	if($config["syntax"] == 'Enabled'){
    		$raw_syntax = file_get_contents($full);
		$_syntax = new Parser();
		$res = $_syntax->parse($raw_syntax);
		echo $res;
	}else{
		require_once($full);
	}
}
}

 

if you solve this for me many many thanks!!!

 

[thetooth]

*makes it go up in list* please?

[Adam]

Perhaps something along the lines of HTML's <pre> tag? Why not [pre]...[/pre] ??

 

A

[thetooth]

Perhaps something along the lines of HTML's <pre> tag? Why not [pre]...[/pre] ??

 

A

 

<pre> wont work because the parser dosen't listen to html it just maches srtings i need a defenit way of getting it to not do it it vertan areas

[Adam]

Whoops, my post was supposed to say.. "Why not [ pre ]...[ /pre ] ??"

 

.. But I see what you mean now, in a sense the parser is 'greedy' and wants to parse everything. I've never done anything like this so totally going off an idea, but why not extract everything between [pre ][ /pre] tags into an array, replacing with some special identifier such as "::pre::", parsing the rest of the code, then using str_replace() to replace the occurences of ::pre:: with your array?? Technically it should work, but somebody else might have a better idea?

 

A

[thetooth]

Whoops, my post was supposed to say.. "Why not [ pre ]...[ /pre ] ??"

 

.. But I see what you mean now, in a sense the parser is 'greedy' and wants to parse everything. I've never done anything like this so totally going off an idea, but why not extract everything between [pre ][ /pre] tags into an array, replacing with some special identifier such as "::pre::", parsing the rest of the code, then using str_replace() to replace the occurences of ::pre:: with your array?? Technically it should work, but somebody else might have a better idea?

 

A

 

yes thats the answer but i am a noob at php so doing that is almost imposable can you help a little with the coding of such a function?

[Adam]

Bit busy at the moment, but al knock something up for you soon as I can..

 

A

[thetooth]

thanks alot man this has really been doing my head in. i spent weeks learning php so i could throw this together but there so much i don't know yet debugging is really difficult