~ overflow ~

So today i’ve finally reached 100k spam emails on my gmail account, hurray!

This class is based on jquery’s markitup plugin function, i did some code compressions and added youtube handler to it. If you need base_defines function, just search the site.

class BBCodeParser {
	private $text;

	public function __construct() {
		base_defines(array(
			"EMOTICONS_DIR" => "/img/emoticons/"
		));
	}

	public function escape($s) {
		$this->text = strip_tags($this->text);
		$code = $s[1];
		$code = htmlspecialchars($code);
		$code = str_replace("[", "[", $code);
		$code = str_replace("]", "]", $code);
		return '<pre><code>'.$code.'</code></pre>';
	}	

	public function removeBr($s) {
		return str_replace("<br />", "", $s[0]);
	}

	public function parse($text) {
		$this->text = trim($text);
		$this->text = preg_replace(array(
				'/\[b\](.*?)\[\/b\]/ms',
				'/\[i\](.*?)\[\/i\]/ms',
				'/\[u\](.*?)\[\/u\]/ms',
				'/\[img\](.*?)\[\/img\]/ms',
				'/\[email\](.*?)\[\/email\]/ms',
				'/\[url\="?(.*?)"?\](.*?)\[\/url\]/ms',
				'/\[size\="?(.*?)"?\](.*?)\[\/size\]/ms',
				'/\[youtube\](.*?)\[\/youtube\]/ms',
				'/\[color\="?(.*?)"?\](.*?)\[\/color\]/ms',
				'/\[quote](.*?)\[\/quote\]/ms',
				'/\[list\=(.*?)\](.*?)\[\/list\]/ms',
				'/\[list\](.*?)\[\/list\]/ms',
				'/\[\*\]\s?(.*?)\n/ms'
			),array(
				'<strong>\1</strong>',
				'<em>\1</em>',
				'<u>\1</u>',
				'<img src="\1" alt="\1" />',
				'<a href="mailto:\1">\1</a>',
				'<a href="\1">\2</a>',
				'<span style="font-size:\1%">\2</span>',
				'<object width="450" height="350"><param name="movie" value="\1"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="\1" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="450" height="350"></embed></object>',
				'<span style="color:\1">\2</span>',
				'<blockquote>\1</blockquote>',
				'<ol start="\1">\2</ol>',
				'<ul>\1</ul>',
				'<li>\1</li>'
			),
			str_replace(array(
					':)',
					':D',
					':o',
					':p',
					':P',
					':(',
					';)'
				),array(
					'<img alt=":)" src="'.EMOTICONS_DIR.'emoticon-happy.png" />',
					'<img alt=":D" src="'.EMOTICONS_DIR.'emoticon-smile.png" />',
					'<img alt=":o" src="'.EMOTICONS_DIR.'emoticon-surprised.png" />',
					'<img alt=":p" src="'.EMOTICONS_DIR.'emoticon-tongue.png" />',
					'<img alt=":P" src="'.EMOTICONS_DIR.'emoticon-tongue.png" />',
					'<img alt=":(" src="'.EMOTICONS_DIR.'emoticon-unhappy.png" />',
					'<img alt=";)" src="'.EMOTICONS_DIR.'emoticon-wink.png" />'
				),
				preg_replace_callback(
					'/\[code\](.*?)\[\/code\]/ms',
					array(&$this, "escape"), // http://www.php.net/manual/en/function.preg-replace-callback.php#90849
					//"BBCodeParser::escape", // http://www.php.net/manual/en/function.preg-replace-callback.php#92548
					$this->text
				)
			)
		);

		// paragraphs
		$this->text = str_replace("\r", "", $this->text);
		$this->text = "<p>".preg_replace("/(\n){2,}/", "</p><p>", $this->text)."</p>";
		$this->text = nl2br($this->text);

		// clean some tags to remain strict
		// not very elegant, but it works. No time to do better  

		$this->text = preg_replace_callback('/<pre>(.*?)<\/pre>/ms', array(&$this,"removeBr"), $this->text);
		$this->text = preg_replace('/<p><pre>(.*?)<\/pre><\/p>/ms', "<pre>\\1</pre>", $this->text);

		$this->text = preg_replace_callback('/<ul>(.*?)<\/ul>/ms', array(&$this,"removeBr"), $this->text);
		$this->text = preg_replace('/<p><ul>(.*?)<\/ul><\/p>/ms', "<ul>\\1</ul>", $this->text);

		return $this->text;
	}
}

Variáveis de markitup em português com youtube

markitup_bbcode = {
  nameSpace:          "bbcode", // Useful to prevent multi-instances CSS conflict
  previewParserPath:  "~/sets/bbcode/preview.php",
  markupSet: [
      {name:'Negrito', key:'B', openWith:'[b]', closeWith:'[/b]'},
      {name:'Italico', key:'I', openWith:'[i]', closeWith:'[/i]'},
      {name:'Sublinhado', key:'U', openWith:'[u]', closeWith:'[/u]'},
      {separator:'---------------' },
      {name:'Imagem', key:'P', replaceWith:'[img][![Url]!][/img]'},
      {name:'YouTube', key:'Y', openWith:'[youtube]', closeWith:'[/youtube]', placeHolder:'[![Url do YouTube]!]'},
      {name:'Link', key:'L', openWith:'[url=[![Url]!]]', closeWith:'[/url]', placeHolder:'Coloque o texto do link aqui...'},
      {separator:'---------------' },
      {name:'Cores', openWith:'[color=[![Cor]!]]', closeWith:'[/color]', dropMenu: [
          {name:'Amarelo', openWith:'[color=yellow]', closeWith:'[/color]', className:"col1-1" },
          {name:'Laranja', openWith:'[color=orange]', closeWith:'[/color]', className:"col1-2" },
          {name:'Vermelho', openWith:'[color=red]', closeWith:'[/color]', className:"col1-3" },
          {name:'Azul', openWith:'[color=blue]', closeWith:'[/color]', className:"col2-1" },
          {name:'Roxo', openWith:'[color=purple]', closeWith:'[/color]', className:"col2-2" },
          {name:'Verde', openWith:'[color=green]', closeWith:'[/color]', className:"col2-3" },
          {name:'Branco', openWith:'[color=white]', closeWith:'[/color]', className:"col3-1" },
          {name:'Cinza', openWith:'[color=gray]', closeWith:'[/color]', className:"col3-2" },
          {name:'Preto', openWith:'[color=black]', closeWith:'[/color]', className:"col3-3" }
      ]},
      {name:'Tamanho', key:'S', openWith:'[size=[![Tamanho do texto]!]]', closeWith:'[/size]', dropMenu :[
          {name:'Grande', openWith:'[size=200]', closeWith:'[/size]' },
          {name:'Normal', openWith:'[size=100]', closeWith:'[/size]' },
          {name:'Pequeno', openWith:'[size=50]', closeWith:'[/size]' }
      ]},
      {separator:'---------------' },
      {name:'Quotes', openWith:'[quote]', closeWith:'[/quote]'},
      {separator:'---------------' },
      {name:'Limpar', className:"clean", replaceWith:function(h) { return h.selection.replace(/\[(.*?)\]/g, "") } }
   ]
};

Problem:

How to validate twitter @your_crap_name using jQuery’s validator plugin?

Solution:

jQuery.validator.addMethod("twitter", function(twitter, element) {
	return this.optional(element) || twitter.match(/^@+\b[A-Z0-9._%-]+\b/i);
}, "Twitter inválido");

Problem:

How to lint check a javascript using php?

Solution:

// (c) z3n - R1V1@100707 - www.overflow.biz - rodrigo.orph@gmail.com
// Based on the original by Matthias Miller (http://www.JavaScriptLint.com/)

class JSLEngine {
	private $_binarypath;							// jlint exec
	private $_confpath;								// config path
	private $fn;											// temp filename (not used outside class)
	private $r;												// jlint output
	private $has_errors=0;						// error flag

	public function __construct($binarypath="", $confpath="") {

		// default paths
		base_defines(array(
			"jslint_binary_path" => _fn_fix(dirname(dirname(dirname(__FILE__)))."/3rd/jsl-0.3.0/jsl.exe"),
			"jslint_conf_path" => _fn_fix(dirname(dirname(dirname(__FILE__)))."/3rd/jsl-0.3.0/jsl.default.conf")
		));

		// startup
	  $this->_binarypath = $binarypath == "" ? jslint_binary_path : $binarypath;
	  $this->_confpath = $confpath == "" ? jslint_conf_path : $confpath;
	}

	public function __destruct() {
		if ($this->fn != null && file_exists($this->fn))
			unlink($this->fn);
	}

	/* returns error on failure; returns true on success */
	public function Lint($code) {
	  if (!$this->_launchLintBinary($code, $output))
	      die('The JavaScript Lint online service is currently unavailable.');

	  // store lint
	  $this->r=$output;
	  $output=explode("\n",$output); // break lines
	  $x=$output[count($output)-2]; // X error(s), X warning(s) (total lines -2)
	  $x=trim(substr($x,0,strpos($x," ")));
	  if ($x > 0) { // has errors
	  	$this->has_errors=1;
	  	return false;
	  } else { // clean
	  	$this->has_errors=0;
	  	return true;
	  }
	}

	/* assumes path and that SERVER_SOFTWARE env is set */
	private function _launchLintBinary($input, &$output) {
    $descriptorspec = array(
        0 => array("pipe", "r"),  // stdin is a pipe that the child will read from
        1 => array("pipe", "w"),  // stdout is a pipe that the child will write to
        2 => array("pipe", "w")
    );

    $this->fn=_fn_fix(dirname(__FILE__).'/tmp.js');

    file_put_contents($this->fn,$input);
    /* launch process */
    $path = PHP_OS == "WINNT" ? $this->_binarypath : escapeshellcmd($this->_binarypath);
    $path.= ' --nologo --conf '.escapeshellarg($this->_confpath).' --process '.escapeshellarg($this->fn);

    $process = proc_open($path, $descriptorspec, $pipes);
    if (!is_resource($process))
        return false;

    $output = '';
    while (!feof($pipes[1]))
       $output .= fgets($pipes[1], 1024);
    fclose($pipes[1]);
    fclose($pipes[2]);

    // It is important that you close any pipes before calling
    // proc_close in order to avoid a deadlock
    $return_value = proc_close($process);
    return true;
	}

	public function output() {
		return $this->r;
	}
}

Helper functions:

function _fn_fix($fn,$force="") { // v1.02
	if (strpos($fn,"://") === false) {
		if ((PHP_OS == "WINNT" && $force == "") || $force == "WINNT")
			$fn=str_replace("/","\\",$fn);
		else
			$fn=str_replace("\\","/",$fn);
	}
	if (strpos($fn,":/") !== false && strpos($fn,"://") === false)
		$fn=substr($fn,2);

	return $fn;
}

function base_defines($x) { // define default
	foreach ($x as $k => $v) {
		if (!defined($k)) {
			define($k,$v);
		}
	}
}

Usage:

$lint=new JSLEngine();
if (!$lint->Lint($js)) {
    echo "bad js code! full output:\n";
    echo $lint->output();
}

Required:

jslint binaries from http://www.JavaScriptLint.com/

Make sure you set the default path on the __construct, so you don’t need to keep setting it on every call.

Problem:

How to programatically validade a single non keyup field with jquery validator?

Solution:

$("input[name=YOUR_FIELD_NAME]").valid()

Problem:

I wanted to change the default mounts at /etc/fstab, but i couldn’t find the disks UUID.

Solution:

blkid /dev/DEVNAME

Problem:

How to find out the absolute count of sectors on a disk at linux?

Solution:

hdparm /dev/YOURDEV

Problem:

How to do a 1:1 copy of a disk on linux?

Solution:

dd bs=4k if=/dev/SOURCE of=/dev/DESTINATION conv=noerror,sync

Make sure you know which one is the source and destination in order to avoid catastrophic fail.

Source:

E-How