Where can I find the JSLint / js validation parser written in PHP? - php

Question

I have used a PHP version of JSLint for the build script. But I didn't write it.. my ex-coworker did. But now, I can't remember what the name is, and where can I find that PHP library do to JSLint thing for me. Any know? Thaks.

Answer 1

Try:
http://www.overflow.biz/blog/lang/en-us/2010/07/07/jslint-php-class/
With:
http://www.javascriptlint.com/download.htm
Code from first link (credit to z3n)
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.