Auto Syntext High-Lighter

Some time we need to highlight some code. For this we apply the plugins but my apps create the dynamic syntex highlight with html and css. you can use it on here. The code is as follows

Code:


<?php

function syntax_highlight($code){

    // this matches --> <?php <--
    $code = preg_replace(
        '/<(.*?)/', 
        '<$1', $code
    );

	// this matches --> ? > <--
    $code = preg_replace(
        '/(.*?)>/U', 
        '$1>', $code
    );

    // this matches --> $variable = "value" <--
    $code = preg_replace(
        '/"(.*?)"/U', 
        '"<span style="color: #007F00">$1</span>"', $code
    );
 
    // hightlight functions and other structures like --> function functionNmae() <--- 
    $code = preg_replace(
        '/(\s)\b(.*?)((\b|\s)\()/U', 
        '$1<span style="color: #0000ff">$2</span>$3', 
        $code
    );
 
    // Match comments (like /* */): 
    $code = preg_replace(
        '/(\/\/)(.+)\s/', 
        '<span style="color: #660066; background-color: #FFFCB1;"><i>$0</i></span>', 
        $code
    );
 
    $code = preg_replace(
        '/(\/\*.*?\*\/)/s', 
        '<span style="color: #660066; background-color: #FFFCB1;"><i>$0</i></span>', 
        $code
    );
 
    // hightlight braces:
    $code = preg_replace('/(\(|\[|\{|\}|\]|\)|\->)/', '<strong>$1</strong>', $code);
 
    // hightlight variables $variableName
    $code = preg_replace(
        '/(\$[a-zA-Z0-9_]+)/', '<span style="color: #0000B3">$1</span>', $code
    );
 
    /* The \b in the pattern indicates a word boundary, so only the distinct
    ** word "web" is matched, and not a word partial like "webbing" or "cobweb" 
    */
 
    // special words and functions
    $code = preg_replace(
        '/\b(print|echo|new|function|var|return|script)\b/', 
        '<span style="color: #7F007F">$1</span>', $code
    );
	

 
    return $code;
}
 
//Display the code in language (Example: print display_code($example_php_code);)
function display_code($example_php_code){
	$the_code = '<pre>'.syntax_highlight($example_php_code).'</pre>'; 
	return $the_code;
}

//Generate the html-css of the code (Example: echo display_html_css_code($example_php_code);)
function display_html_css_code($example_php_code){
	$the_code = '<pre>'.syntax_highlight($example_php_code).'</pre>'; 
	if(!empty($the_code)){
		return htmlspecialchars($the_code, ENT_QUOTES);
	}
}

/*Calling process example-start*/
//$example_php_code = $_POST['code']; //Receive the code

//print display_code($example_php_code); //Display in code language

//echo display_html_css_code($example_php_code); //html-css code of the code

?>

Auto Syntext High-Lighter

Saturday, February 23, 2013