diff --git a/.gitignore b/.gitignore
index 3b38053..d9969c1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,3 +9,4 @@
 /vendor
 /.php_cs.cache
 /static/[0-9]*
+/tests/compiler.jar
diff --git a/.php_cs b/.php_cs
index ddae094..8f25773 100644
--- a/.php_cs
+++ b/.php_cs
@@ -5,7 +5,7 @@ $finder = Symfony\CS\Finder\DefaultFinder::create()
 ;
 
 return Symfony\CS\Config\Config::create()
-	->level(Symfony\CS\FixerInterface::NONE_LEVEL)
+	->level(Symfony\CS\FixerInterface::PSR2_LEVEL)
 	->setUsingCache(true)
 	->fixers(array(
 		'linefeed',
@@ -21,6 +21,7 @@ return Symfony\CS\Config\Config::create()
 		'controls_spaces',
 		'elseif',
 		'-eof_ending',
+		'-method_argument_space',
 	))
 	->finder($finder)
 ;
diff --git a/.travis.yml b/.travis.yml
index e1a2519..0ef27a3 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,7 +6,6 @@ php:
   - 5.6
   - 5.5
   - 5.4
-  - 5.3
   - hhvm
 
 matrix:
@@ -25,8 +24,14 @@ cache:
 install:
   - composer update --no-interaction --prefer-source
 
+before_script:
+  - wget -c https://dl.google.com/closure-compiler/compiler-latest.zip -O vendor/compiler-latest.zip
+  - unzip -od vendor/closure-compiler vendor/compiler-latest.zip
+  - ln -sfn ../$(echo vendor/closure-compiler/closure-compiler-*.jar) tests/compiler.jar
+  - java -jar tests/compiler.jar --version
+
 script:
   - composer validate
-  - phpunit
+  - phpunit --verbose
 
 # vim:ts=2:sw=2:et
diff --git a/composer.json b/composer.json
index c8fef82..84128f8 100644
--- a/composer.json
+++ b/composer.json
@@ -23,21 +23,24 @@
 		"classmap": ["tests/TestCase.php"]
 	},
 	"require": {
-		"php": ">=5.3.0",
 		"ext-pcre": "*",
-		"firephp/firephp-core": "~0.4.0",
 		"intervention/httpauth": "~2.0",
 		"monolog/monolog": "~1.1",
 		"mrclay/jsmin-php": "~2",
 		"mrclay/props-dic": "^2.2",
+		"php": "^5.3.0 || ^7.0",
 		"tubalmartin/cssmin": "~2.4.8"
 	},
 	"require-dev": {
+		"firephp/firephp-core": "~0.4.0",
 		"leafo/lessphp": "~0.4.0",
+		"leafo/scssphp": "~0.6.6",
 		"meenie/javascript-packer": "~1.1",
-		"phpunit/phpunit": "4.8.*"
+		"phpunit/phpunit": "4.8.*",
+		"tedivm/jshrink": "~1.1.0"
 	},
 	"suggest": {
+		"firephp/firephp-core": "Use FirePHP for Log messages",
 		"leafo/lessphp": "LESS support",
 		"meenie/javascript-packer": "Keep track of the Packer PHP port using Composer"
 	},
diff --git a/docs/UserGuide.wiki.md b/docs/UserGuide.wiki.md
index a572894..6e37e96 100644
--- a/docs/UserGuide.wiki.md
+++ b/docs/UserGuide.wiki.md
@@ -10,7 +10,7 @@ In other words, the "f" argument is set to the file path from root without the i
 
 To combine multiple files, separate the paths given to "f" with commas.
 
-Let's say you have CSS files at these URLs:
+Let's say you have JS files at these URLs:
 
 * http://example.com/scripts/library-1.5.js
 * http://example.com/scripts/site.js
diff --git a/lib/HTTP/ConditionalGet.php b/lib/HTTP/ConditionalGet.php
index 72d11c8..0f251ee 100644
--- a/lib/HTTP/ConditionalGet.php
+++ b/lib/HTTP/ConditionalGet.php
@@ -60,7 +60,8 @@
  * @subpackage HTTP
  * @author Stephen Clay <steve@mrclay.org>
  */
-class HTTP_ConditionalGet {
+class HTTP_ConditionalGet
+{
 
     /**
      * Does the client have a valid copy of the requested resource?
@@ -340,7 +341,8 @@ class HTTP_ConditionalGet {
      *
      * @return string
      */
-    protected function normalizeEtag($etag) {
+    protected function normalizeEtag($etag)
+    {
         $etag = trim($etag);
 
         return $this->_stripEtag
diff --git a/lib/HTTP/Encoder.php b/lib/HTTP/Encoder.php
index 6e236ee..3bd788c 100644
--- a/lib/HTTP/Encoder.php
+++ b/lib/HTTP/Encoder.php
@@ -43,7 +43,8 @@
  * @subpackage HTTP
  * @author Stephen Clay <steve@mrclay.org>
  */
-class HTTP_Encoder {
+class HTTP_Encoder
+{
 
     /**
      * Should the encoder allow HTTP encoding to IE6?
@@ -97,8 +98,7 @@ class HTTP_Encoder {
             $this->_headers['Content-Type'] = $spec['type'];
         }
         if (isset($spec['method'])
-            && in_array($spec['method'], array('gzip', 'deflate', 'compress', '')))
-        {
+            && in_array($spec['method'], array('gzip', 'deflate', 'compress', ''))) {
             $this->_encodeMethod = array($spec['method'], $spec['method']);
         } else {
             $this->_encodeMethod = self::getAcceptedEncoding();
@@ -192,8 +192,7 @@ class HTTP_Encoder {
         // @link http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html
 
         if (! isset($_SERVER['HTTP_ACCEPT_ENCODING'])
-            || self::isBuggyIe())
-        {
+            || self::isBuggyIe()) {
             return array('', '');
         }
         $ae = $_SERVER['HTTP_ACCEPT_ENCODING'];
@@ -259,8 +258,7 @@ class HTTP_Encoder {
         }
         if ('' === $this->_encodeMethod[0]
             || ($compressionLevel == 0)
-            || !extension_loaded('zlib'))
-        {
+            || !extension_loaded('zlib')) {
             return false;
         }
         if ($this->_encodeMethod[0] === 'deflate') {
diff --git a/lib/Minify.php b/lib/Minify.php
index ba5ac4d..7741931 100644
--- a/lib/Minify.php
+++ b/lib/Minify.php
@@ -24,7 +24,8 @@ use Psr\Log\LoggerInterface;
  * @license http://opensource.org/licenses/bsd-license.php  New BSD License
  * @link https://github.com/mrclay/minify
  */
-class Minify {
+class Minify
+{
 
     /**
      * API version
@@ -87,7 +88,8 @@ class Minify {
      * @param Minify_CacheInterface $cache
      * @param LoggerInterface       $logger
      */
-    public function __construct(Minify_CacheInterface $cache, LoggerInterface $logger = null) {
+    public function __construct(Minify_CacheInterface $cache, LoggerInterface $logger = null)
+    {
         $this->cache = $cache;
         $this->logger = $logger;
     }
@@ -272,7 +274,8 @@ class Minify {
                 // depending on what the client accepts, $contentEncoding may be
                 // 'x-gzip' while our internal encodeMethod is 'gzip'. Calling
                 // getAcceptedEncoding(false, false) leaves out compress and deflate as options.
-                list($this->options['encodeMethod'], $contentEncoding) = HTTP_Encoder::getAcceptedEncoding(false, false);
+                $list = HTTP_Encoder::getAcceptedEncoding(false, false);
+                list($this->options['encodeMethod'], $contentEncoding) = $list;
                 $sendVary = ! HTTP_Encoder::isBuggyIe();
             }
         } else {
@@ -492,11 +495,13 @@ class Minify {
      * @param string $content
      * @return string
      */
-    public static function nullMinifier($content) {
+    public static function nullMinifier($content)
+    {
         if (isset($content[0]) && $content[0] === "\xef") {
             $content = substr($content, 3);
         }
         $content = str_replace("\r\n", "\n", $content);
+
         return trim($content);
     }
 
@@ -505,14 +510,14 @@ class Minify {
      */
     protected function setupUriRewrites()
     {
-        foreach($this->sources as $key => $source) {
+        foreach ($this->sources as $key => $source) {
             $file = $this->env->normalizePath($source->getFilePath());
             $minifyOptions = $source->getMinifierOptions();
 
             if ($file
                 && !isset($minifyOptions['currentDir'])
-                && !isset($minifyOptions['prependRelativePath'])
-            ) {
+                && !isset($minifyOptions['prependRelativePath'])) {
+
                 $minifyOptions['currentDir'] = dirname($file);
                 $source->setMinifierOptions($minifyOptions);
             }
@@ -592,9 +597,7 @@ class Minify {
                     ! $source                        // yes, we ran out of sources
                     || $type === self::TYPE_CSS      // yes, to process CSS individually (avoiding PCRE bugs/limits)
                     || $minifier !== $lastMinifier   // yes, minifier changed
-                    || $options !== $lastOptions)    // yes, options changed
-                )
-            {
+                    || $options !== $lastOptions)) { // yes, options changed
                 // minify previous sources with last settings
                 $imploded = implode($implodeSeparator, $groupToProcessTogether);
                 $groupToProcessTogether = array();
@@ -717,10 +720,10 @@ class Minify {
             if (!empty($options['contentType'])) {
                 // just verify sources have null content type or match the options
                 if ($sourceType !== null && $sourceType !== $options['contentType']) {
-
-                    $this->logger && $this->logger->warning('ContentType mismatch');
+                    $this->logger && $this->logger->warning("ContentType mismatch: '{$sourceType}' != '{$options['contentType']}'");
 
                     $this->sources = array();
+
                     return $options;
                 }
 
@@ -730,10 +733,10 @@ class Minify {
             if ($type === null) {
                 $type = $sourceType;
             } elseif ($sourceType !== $type) {
-
-                $this->logger && $this->logger->warning('ContentType mismatch');
+                $this->logger && $this->logger->warning("ContentType mismatch: '{$sourceType}' != '{$type}'");
 
                 $this->sources = array();
+
                 return $options;
             }
         }
diff --git a/lib/Minify/App.php b/lib/Minify/App.php
index d39a639..840f364 100644
--- a/lib/Minify/App.php
+++ b/lib/Minify/App.php
@@ -3,7 +3,6 @@
 namespace Minify;
 
 use Props\Container;
-use Psr\Log\LoggerInterface;
 
 /**
  * @property \Minify_CacheInterface           $cache
@@ -22,7 +21,8 @@ use Psr\Log\LoggerInterface;
  * @property \Minify_Source_Factory           $sourceFactory
  * @property array                            $sourceFactoryOptions
  */
-class App extends Container {
+class App extends Container
+{
 
     /**
      * Constructor
@@ -64,9 +64,10 @@ class App extends Container {
 
             $propNames = array_keys(get_object_vars($config));
 
-            $varNames = array_map(function ($name) {
+            $prefixer = function ($name) {
                 return "min_$name";
-            }, $propNames);
+            };
+            $varNames = array_map($prefixer, $propNames);
 
             $vars = compact($varNames);
 
@@ -104,12 +105,14 @@ class App extends Container {
             if (empty($config->documentRoot)) {
                 return $app->env->getDocRoot();
             }
+
             return $app->env->normalizePath($config->documentRoot);
         };
 
         $this->env = function (App $app) {
             $config = $app->config;
             $envArgs = empty($config->envArgs) ? array() : $config->envArgs;
+
             return new \Minify_Env($envArgs);
         };
 
@@ -117,6 +120,7 @@ class App extends Container {
             $format = "%channel%.%level_name%: %message% %context% %extra%";
             $handler = new \Monolog\Handler\ErrorLogHandler();
             $handler->setFormatter(new \Monolog\Formatter\LineFormatter($format));
+
             return $handler;
         };
 
@@ -142,11 +146,13 @@ class App extends Container {
             if ($value === true || $value instanceof \FirePHP) {
                 $logger->pushHandler($app->errorLogHandler);
                 $logger->pushHandler(new \Monolog\Handler\FirePHPHandler());
+
                 return $logger;
             }
 
             if ($value instanceof \Monolog\Handler\HandlerInterface) {
                 $logger->pushHandler($value);
+
                 return $logger;
             }
 
@@ -154,6 +160,7 @@ class App extends Container {
             if (is_object($value) && is_callable(array($value, 'log'))) {
                 $handler = new \Minify\Logger\LegacyHandler($value);
                 $logger->pushHandler($handler);
+
                 return $logger;
             }
 
@@ -232,6 +239,10 @@ class App extends Container {
                 $ret['allowDirs'] = $serveOptions['minApp']['allowDirs'];
             }
 
+            if (isset($serveOptions['checkAllowDirs'])) {
+                $ret['checkAllowDirs'] = $serveOptions['checkAllowDirs'];
+            }
+
             if (is_numeric($app->config->uploaderHoursBehind)) {
                 $ret['uploaderHoursBehind'] = $app->config->uploaderHoursBehind;
             }
@@ -240,7 +251,8 @@ class App extends Container {
         };
     }
 
-    public function runServer() {
+    public function runServer()
+    {
         if (!$this->env->get('f') && $this->env->get('g') === null) {
             // no spec given
             $msg = '<p>No "f" or "g" parameters were detected.</p>';
@@ -256,8 +268,10 @@ class App extends Container {
      * @param mixed $var
      * @return string
      */
-    private function typeOf($var) {
+    private function typeOf($var)
+    {
         $type = gettype($var);
+
         return $type === 'object' ? get_class($var) : $type;
     }
 }
diff --git a/lib/Minify/Build.php b/lib/Minify/Build.php
index e4428e0..bf9b487 100644
--- a/lib/Minify/Build.php
+++ b/lib/Minify/Build.php
@@ -34,7 +34,8 @@
  * @package Minify
  * @author Stephen Clay <steve@mrclay.org>
  */
-class Minify_Build {
+class Minify_Build
+{
 
     /**
      * Last modification time of all files in the build
@@ -67,15 +68,14 @@ class Minify_Build {
      * append the timestamp to the URI.
      * @return string
      */
-    public function uri($uri, $forceAmpersand = false) {
-        $sep = ($forceAmpersand || strpos($uri, '?') !== false)
-            ? self::$ampersand
-            : '?';
+    public function uri($uri, $forceAmpersand = false)
+    {
+        $sep = ($forceAmpersand || strpos($uri, '?') !== false) ? self::$ampersand : '?';
 
         return "{$uri}{$sep}{$this->lastModified}";
     }
 
-	/**
+    /**
      * Create a build object
      *
      * @param array $sources array of Minify_Source objects and/or file paths
diff --git a/lib/Minify/CSS.php b/lib/Minify/CSS.php
index da389ea..c311f2e 100644
--- a/lib/Minify/CSS.php
+++ b/lib/Minify/CSS.php
@@ -16,7 +16,8 @@
  *
  * @deprecated Use Minify_CSSmin
  */
-class Minify_CSS {
+class Minify_CSS
+{
 
     /**
      * Minify a CSS string
@@ -70,32 +71,27 @@ class Minify_CSS {
         if ($options['removeCharsets']) {
             $css = preg_replace('/@charset[^;]+;\\s*/', '', $css);
         }
+
         if ($options['compress']) {
             if (! $options['preserveComments']) {
                 $css = Minify_CSS_Compressor::process($css, $options);
             } else {
-                $css = Minify_CommentPreserver::process(
-                    $css
-                    ,array('Minify_CSS_Compressor', 'process')
-                    ,array($options)
-                );
+                $processor = array('Minify_CSS_Compressor', 'process');
+                $css = Minify_CommentPreserver::process($css, $processor, array($options));
             }
         }
+
         if (! $options['currentDir'] && ! $options['prependRelativePath']) {
             return $css;
         }
+
         if ($options['currentDir']) {
-            return Minify_CSS_UriRewriter::rewrite(
-                $css
-                ,$options['currentDir']
-                ,$options['docRoot']
-                ,$options['symlinks']
-            );
+            $currentDir = $options['currentDir'];
+            $docRoot = $options['docRoot'];
+            $symlinks = $options['symlinks'];
+            return Minify_CSS_UriRewriter::rewrite($css, $currentDir, $docRoot, $symlinks);
         } else {
-            return Minify_CSS_UriRewriter::prepend(
-                $css
-                ,$options['prependRelativePath']
-            );
+            return Minify_CSS_UriRewriter::prepend($css, $options['prependRelativePath']);
         }
     }
 }
diff --git a/lib/Minify/CSS/Compressor.php b/lib/Minify/CSS/Compressor.php
index aa9f81f..ee3c7d6 100644
--- a/lib/Minify/CSS/Compressor.php
+++ b/lib/Minify/CSS/Compressor.php
@@ -26,7 +26,8 @@
  *
  * @deprecated Use CSSmin (tubalmartin/cssmin)
  */
-class Minify_CSS_Compressor {
+class Minify_CSS_Compressor
+{
 
     /**
      * Minify a CSS string
@@ -61,7 +62,8 @@ class Minify_CSS_Compressor {
      *
      * @param array $options (currently ignored)
      */
-    private function __construct($options) {
+    private function __construct($options)
+    {
         $this->_options = $options;
     }
 
@@ -86,8 +88,8 @@ class Minify_CSS_Compressor {
         $css = preg_replace('@:\\s*/\\*\\s*\\*/@', ':/*keep*/', $css);
 
         // apply callback to all valid comments (and strip out surrounding ws
-        $css = preg_replace_callback('@\\s*/\\*([\\s\\S]*?)\\*/\\s*@'
-            ,array($this, '_commentCB'), $css);
+        $pattern = '@\\s*/\\*([\\s\\S]*?)\\*/\\s*@';
+        $css = preg_replace_callback($pattern, array($this, '_commentCB'), $css);
 
         // remove ws around { } and last semicolon in declaration block
         $css = preg_replace('/\\s*{\\s*/', '{', $css);
@@ -97,16 +99,17 @@ class Minify_CSS_Compressor {
         $css = preg_replace('/\\s*;\\s*/', ';', $css);
 
         // remove ws around urls
-        $css = preg_replace('/
+        $pattern = '/
                 url\\(      # url(
                 \\s*
                 ([^\\)]+?)  # 1 = the URL (really just a bunch of non right parenthesis)
                 \\s*
                 \\)         # )
-            /x', 'url($1)', $css);
+            /x';
+        $css = preg_replace($pattern, 'url($1)', $css);
 
         // remove ws between rules and colons
-        $css = preg_replace('/
+        $pattern = '/
                 \\s*
                 ([{;])              # 1 = beginning of block or rule separator
                 \\s*
@@ -115,10 +118,11 @@ class Minify_CSS_Compressor {
                 :
                 \\s*
                 (\\b|[#\'"-])        # 3 = first character of a value
-            /x', '$1$2:$3', $css);
+            /x';
+        $css = preg_replace($pattern, '$1$2:$3', $css);
 
         // remove ws in selectors
-        $css = preg_replace_callback('/
+        $pattern = '/
                 (?:              # non-capture
                     \\s*
                     [^~>+,\\s]+  # selector part
@@ -128,16 +132,16 @@ class Minify_CSS_Compressor {
                 \\s*
                 [^~>+,\\s]+      # selector part
                 {                # open declaration block
-            /x'
-            ,array($this, '_selectorsCB'), $css);
+            /x';
+        $css = preg_replace_callback($pattern, array($this, '_selectorsCB'), $css);
 
         // minimize hex colors
-        $css = preg_replace('/([^=])#([a-f\\d])\\2([a-f\\d])\\3([a-f\\d])\\4([\\s;\\}])/i'
-            , '$1#$2$3$4$5', $css);
+        $pattern = '/([^=])#([a-f\\d])\\2([a-f\\d])\\3([a-f\\d])\\4([\\s;\\}])/i';
+        $css = preg_replace($pattern, '$1#$2$3$4$5', $css);
 
         // remove spaces between font families
-        $css = preg_replace_callback('/font-family:([^;}]+)([;}])/'
-            ,array($this, '_fontFamilyCB'), $css);
+        $pattern = '/font-family:([^;}]+)([;}])/';
+        $css = preg_replace_callback($pattern, array($this, '_fontFamilyCB'), $css);
 
         $css = preg_replace('/@import\\s+url/', '@import url', $css);
 
@@ -145,14 +149,15 @@ class Minify_CSS_Compressor {
         $css = preg_replace('/[ \\t]*\\n+\\s*/', "\n", $css);
 
         // separate common descendent selectors w/ newlines (to limit line lengths)
-        $css = preg_replace('/([\\w#\\.\\*]+)\\s+([\\w#\\.\\*]+){/', "$1\n$2{", $css);
+        $pattern = '/([\\w#\\.\\*]+)\\s+([\\w#\\.\\*]+){/';
+        $css = preg_replace($pattern, "$1\n$2{", $css);
 
         // Use newline after 1st numeric value (to limit line lengths).
-        $css = preg_replace('/
+        $pattern = '/
             ((?:padding|margin|border|outline):\\d+(?:px|em)?) # 1 = prop : 1st numeric value
             \\s+
-            /x'
-            ,"$1\n", $css);
+            /x';
+        $css = preg_replace($pattern, "$1\n", $css);
 
         // prevent triggering IE6 bug: http://www.crankygeek.com/ie6pebug/
         $css = preg_replace('/:first-l(etter|ine)\\{/', ':first-l$1 {', $css);
@@ -189,52 +194,54 @@ class Minify_CSS_Compressor {
         if ($m === 'keep') {
             return '/**/';
         }
+
         if ($m === '" "') {
             // component of http://tantek.com/CSS/Examples/midpass.html
             return '/*" "*/';
         }
+
         if (preg_match('@";\\}\\s*\\}/\\*\\s+@', $m)) {
             // component of http://tantek.com/CSS/Examples/midpass.html
             return '/*";}}/* */';
         }
+
         if ($this->_inHack) {
             // inversion: feeding only to one browser
-            if (preg_match('@
+            $pattern = '@
                     ^/               # comment started like /*/
                     \\s*
                     (\\S[\\s\\S]+?)  # has at least some non-ws content
                     \\s*
                     /\\*             # ends like /*/ or /**/
-                @x', $m, $n)) {
+                @x';
+            if (preg_match($pattern, $m, $n)) {
                 // end hack mode after this comment, but preserve the hack and comment content
                 $this->_inHack = false;
-
                 return "/*/{$n[1]}/**/";
             }
         }
+
         if (substr($m, -1) === '\\') { // comment ends like \*/
             // begin hack mode and preserve hack
             $this->_inHack = true;
-
             return '/*\\*/';
         }
+
         if ($m !== '' && $m[0] === '/') { // comment looks like /*/ foo */
             // begin hack mode and preserve hack
             $this->_inHack = true;
-
             return '/*/*/';
         }
+
         if ($this->_inHack) {
             // a regular comment ends hack mode but should be preserved
             $this->_inHack = false;
-
             return '/**/';
         }
+
         // Issue 107: if there's any surrounding whitespace, it may be important, so
         // replace the comment with a single space
-        return $hasSurroundingWs // remove all other comments
-            ? ' '
-            : '';
+        return $hasSurroundingWs ? ' ' : ''; // remove all other comments
     }
 
     /**
@@ -247,8 +254,10 @@ class Minify_CSS_Compressor {
     protected function _fontFamilyCB($m)
     {
         // Issue 210: must not eliminate WS between words in unquoted families
-        $pieces = preg_split('/(\'[^\']+\'|"[^"]+")/', $m[1], null, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY);
+        $flags = PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY;
+        $pieces = preg_split('/(\'[^\']+\'|"[^"]+")/', $m[1], null, $flags);
         $out = 'font-family:';
+
         while (null !== ($piece = array_shift($pieces))) {
             if ($piece[0] !== '"' && $piece[0] !== "'") {
                 $piece = preg_replace('/\\s+/', ' ', $piece);
diff --git a/lib/Minify/CSS/UriRewriter.php b/lib/Minify/CSS/UriRewriter.php
index 93bf321..acd1a2c 100644
--- a/lib/Minify/CSS/UriRewriter.php
+++ b/lib/Minify/CSS/UriRewriter.php
@@ -10,7 +10,8 @@
  * @package Minify
  * @author Stephen Clay <steve@mrclay.org>
  */
-class Minify_CSS_UriRewriter {
+class Minify_CSS_UriRewriter
+{
 
     /**
      * rewrite() and rewriteRelative() append debugging information here
@@ -51,10 +52,10 @@ class Minify_CSS_UriRewriter {
 
         // normalize symlinks in order to map to link
         foreach ($symlinks as $link => $target) {
-            $link = ($link === '//')
-                ? self::$_docRoot
-                : str_replace('//', self::$_docRoot . '/', $link);
+
+            $link = ($link === '//') ? self::$_docRoot : str_replace('//', self::$_docRoot . '/', $link);
             $link = strtr($link, '/', DIRECTORY_SEPARATOR);
+
             self::$_symlinks[$link] = self::_realpath($target);
         }
 
@@ -70,10 +71,11 @@ class Minify_CSS_UriRewriter {
         $css = self::_owlifySvgPaths($css);
 
         // rewrite
-        $css = preg_replace_callback('/@import\\s+([\'"])(.*?)[\'"]/'
-            ,array(self::$className, '_processUriCB'), $css);
-        $css = preg_replace_callback('/url\\(\\s*([\'"](.*?)[\'"]|[^\\)\\s]+)\\s*\\)/'
-            ,array(self::$className, '_processUriCB'), $css);
+        $pattern = '/@import\\s+([\'"])(.*?)[\'"]/';
+        $css = preg_replace_callback($pattern, array(self::$className, '_processUriCB'), $css);
+
+        $pattern = '/url\\(\\s*([\'"](.*?)[\'"]|[^\\)\\s]+)\\s*\\)/';
+        $css = preg_replace_callback($pattern, array(self::$className, '_processUriCB'), $css);
 
         $css = self::_unOwlify($css);
 
@@ -98,10 +100,11 @@ class Minify_CSS_UriRewriter {
         $css = self::_owlifySvgPaths($css);
         
         // append
-        $css = preg_replace_callback('/@import\\s+([\'"])(.*?)[\'"]/'
-            ,array(self::$className, '_processUriCB'), $css);
-        $css = preg_replace_callback('/url\\(\\s*([\'"](.*?)[\'"]|[^\\)\\s]+)\\s*\\)/'
-            ,array(self::$className, '_processUriCB'), $css);
+        $pattern = '/@import\\s+([\'"])(.*?)[\'"]/';
+        $css = preg_replace_callback($pattern, array(self::$className, '_processUriCB'), $css);
+
+        $pattern = '/url\\(\\s*([\'"](.*?)[\'"]|[^\\)\\s]+)\\s*\\)/';
+        $css = preg_replace_callback($pattern, array(self::$className, '_processUriCB'), $css);
 
         $css = self::_unOwlify($css);
 
@@ -151,8 +154,8 @@ class Minify_CSS_UriRewriter {
     public static function rewriteRelative($uri, $realCurrentDir, $realDocRoot, $symlinks = array())
     {
         // prepend path with current dir separator (OS-independent)
-        $path = strtr($realCurrentDir, '/', DIRECTORY_SEPARATOR)
-            . DIRECTORY_SEPARATOR . strtr($uri, '/', DIRECTORY_SEPARATOR);
+        $path = strtr($realCurrentDir, '/', DIRECTORY_SEPARATOR);
+        $path .= DIRECTORY_SEPARATOR . strtr($uri, '/', DIRECTORY_SEPARATOR);
 
         self::$debugText .= "file-relative URI  : {$uri}\n"
                           . "path prepended     : {$path}\n";
@@ -262,13 +265,14 @@ class Minify_CSS_UriRewriter {
      */
     private static function _trimUrls($css)
     {
-        return preg_replace('/
+        $pattern = '/
             url\\(      # url(
             \\s*
             ([^\\)]+?)  # 1 = URI (assuming does not contain ")")
             \\s*
             \\)         # )
-        /x', 'url($1)', $css);
+        /x';
+        return preg_replace($pattern, 'url($1)', $css);
     }
 
     /**
@@ -286,13 +290,15 @@ class Minify_CSS_UriRewriter {
             $uri = $m[2];
         } else {
             // $m[1] is either quoted or not
-            $quoteChar = ($m[1][0] === "'" || $m[1][0] === '"')
-                ? $m[1][0]
-                : '';
-            $uri = ($quoteChar === '')
-                ? $m[1]
-                : substr($m[1], 1, strlen($m[1]) - 2);
+            $quoteChar = ($m[1][0] === "'" || $m[1][0] === '"') ? $m[1][0] : '';
+
+            $uri = ($quoteChar === '') ? $m[1] : substr($m[1], 1, strlen($m[1]) - 2);
         }
+
+        if ($uri === '') {
+            return $m[0];
+        }
+
         // if not root/scheme relative and not starts with scheme
         if (!preg_match('~^(/|[a-z]+\:)~', $uri)) {
             // URI is file-relative: rewrite depending on options
@@ -312,9 +318,11 @@ class Minify_CSS_UriRewriter {
             }
         }
 
-        return $isImport
-            ? "@import {$quoteChar}{$uri}{$quoteChar}"
-            : "url({$quoteChar}{$uri}{$quoteChar})";
+        if ($isImport) {
+            return "@import {$quoteChar}{$uri}{$quoteChar}";
+        } else {
+            return "url({$quoteChar}{$uri}{$quoteChar})";
+        }
     }
 
     /**
@@ -326,8 +334,10 @@ class Minify_CSS_UriRewriter {
      * @param string $css
      * @return string
      */
-    private static function _owlifySvgPaths($css) {
-        return preg_replace('~\b((?:clip-path|mask|-webkit-mask)\s*\:\s*)url(\(\s*#\w+\s*\))~', '$1owl$2', $css);
+    private static function _owlifySvgPaths($css)
+    {
+        $pattern = '~\b((?:clip-path|mask|-webkit-mask)\s*\:\s*)url(\(\s*#\w+\s*\))~';
+        return preg_replace($pattern, '$1owl$2', $css);
     }
 
     /**
@@ -338,7 +348,9 @@ class Minify_CSS_UriRewriter {
      * @param string $css
      * @return string
      */
-    private static function _unOwlify($css) {
-        return preg_replace('~\b((?:clip-path|mask|-webkit-mask)\s*\:\s*)owl~', '$1url', $css);
+    private static function _unOwlify($css)
+    {
+        $pattern = '~\b((?:clip-path|mask|-webkit-mask)\s*\:\s*)owl~';
+        return preg_replace($pattern, '$1url', $css);
     }
 }
diff --git a/lib/Minify/CSSmin.php b/lib/Minify/CSSmin.php
index 8c3a64f..ad5cdbf 100644
--- a/lib/Minify/CSSmin.php
+++ b/lib/Minify/CSSmin.php
@@ -12,7 +12,8 @@
  * @package Minify
  * @author Stephen Clay <steve@mrclay.org>
  */
-class Minify_CSSmin {
+class Minify_CSSmin
+{
 
     /**
      * Minify a CSS string
diff --git a/lib/Minify/Cache/APC.php b/lib/Minify/Cache/APC.php
index 2e65501..479938d 100644
--- a/lib/Minify/Cache/APC.php
+++ b/lib/Minify/Cache/APC.php
@@ -14,7 +14,8 @@
  * @package Minify
  * @author Chris Edwards
  **/
-class Minify_Cache_APC implements Minify_CacheInterface {
+class Minify_Cache_APC implements Minify_CacheInterface
+{
 
     /**
      * Create a Minify_Cache_APC object, to be passed to
@@ -58,9 +59,11 @@ class Minify_Cache_APC implements Minify_CacheInterface {
             return false;
         }
 
-        return (function_exists('mb_strlen') && ((int)ini_get('mbstring.func_overload') & 2))
-            ? mb_strlen($this->_data, '8bit')
-            : strlen($this->_data);
+        if (function_exists('mb_strlen') && ((int)ini_get('mbstring.func_overload') & 2)) {
+            return mb_strlen($this->_data, '8bit');
+        } else {
+            return strlen($this->_data);;
+        }
     }
 
     /**
@@ -84,9 +87,7 @@ class Minify_Cache_APC implements Minify_CacheInterface {
      */
     public function display($id)
     {
-        echo $this->_fetch($id)
-            ? $this->_data
-            : '';
+        echo $this->_fetch($id) ? $this->_data : '';
     }
 
     /**
@@ -98,9 +99,7 @@ class Minify_Cache_APC implements Minify_CacheInterface {
      */
     public function fetch($id)
     {
-        return $this->_fetch($id)
-            ? $this->_data
-            : '';
+        return $this->_fetch($id) ? $this->_data : '';
     }
 
     private $_exp = null;
@@ -125,9 +124,9 @@ class Minify_Cache_APC implements Minify_CacheInterface {
         $ret = apc_fetch($id);
         if (false === $ret) {
             $this->_id = null;
-
             return false;
         }
+
         list($this->_lm, $this->_data) = explode('|', $ret, 2);
         $this->_id = $id;
 
diff --git a/lib/Minify/Cache/File.php b/lib/Minify/Cache/File.php
index cb3a082..7f57472 100644
--- a/lib/Minify/Cache/File.php
+++ b/lib/Minify/Cache/File.php
@@ -6,7 +6,8 @@
 
 use Psr\Log\LoggerInterface;
 
-class Minify_Cache_File implements Minify_CacheInterface {
+class Minify_Cache_File implements Minify_CacheInterface
+{
 
     /**
      * @var string
@@ -53,17 +54,18 @@ class Minify_Cache_File implements Minify_CacheInterface {
      */
     public function store($id, $data)
     {
-        $flag = $this->locking
-            ? LOCK_EX
-            : null;
+        $flag = $this->locking ? LOCK_EX : null;
         $file = $this->path . '/' . $id;
+
         if (! @file_put_contents($file, $data, $flag)) {
             $this->logger->warning("Minify_Cache_File: Write failed to '$file'");
         }
+
         // write control
         if ($data !== $this->fetch($id)) {
             @unlink($file);
             $this->logger->warning("Minify_Cache_File: Post-write read failed for '$file'");
+
             return false;
         }
 
@@ -105,18 +107,19 @@ class Minify_Cache_File implements Minify_CacheInterface {
      */
     public function display($id)
     {
-        if ($this->locking) {
-            $fp = fopen($this->path . '/' . $id, 'rb');
-            flock($fp, LOCK_SH);
-            fpassthru($fp);
-            flock($fp, LOCK_UN);
-            fclose($fp);
-        } else {
+        if (!$this->locking) {
             readfile($this->path . '/' . $id);
+            return;
         }
+
+        $fp = fopen($this->path . '/' . $id, 'rb');
+        flock($fp, LOCK_SH);
+        fpassthru($fp);
+        flock($fp, LOCK_UN);
+        fclose($fp);
     }
 
-	/**
+    /**
      * Fetch the cached content
      *
      * @param string $id cache id (e.g. a filename)
@@ -125,20 +128,21 @@ class Minify_Cache_File implements Minify_CacheInterface {
      */
     public function fetch($id)
     {
-        if ($this->locking) {
-            $fp = fopen($this->path . '/' . $id, 'rb');
-            if (!$fp) {
-                return false;
-            }
-            flock($fp, LOCK_SH);
-            $ret = stream_get_contents($fp);
-            flock($fp, LOCK_UN);
-            fclose($fp);
-
-            return $ret;
-        } else {
+        if (!$this->locking) {
             return file_get_contents($this->path . '/' . $id);
         }
+
+        $fp = fopen($this->path . '/' . $id, 'rb');
+        if (!$fp) {
+            return false;
+        }
+
+        flock($fp, LOCK_SH);
+        $ret = stream_get_contents($fp);
+        flock($fp, LOCK_UN);
+        fclose($fp);
+
+        return $ret;
     }
 
     /**
@@ -160,6 +164,7 @@ class Minify_Cache_File implements Minify_CacheInterface {
     public static function tmp()
     {
         trigger_error(__METHOD__ . ' is deprecated in Minfy 3.0', E_USER_DEPRECATED);
+
         return sys_get_temp_dir();
     }
 
diff --git a/lib/Minify/Cache/Memcache.php b/lib/Minify/Cache/Memcache.php
index ad6c480..d70dd07 100644
--- a/lib/Minify/Cache/Memcache.php
+++ b/lib/Minify/Cache/Memcache.php
@@ -17,7 +17,8 @@
  * }
  * </code>
  **/
-class Minify_Cache_Memcache implements Minify_CacheInterface {
+class Minify_Cache_Memcache implements Minify_CacheInterface
+{
 
     /**
      * Create a Minify_Cache_Memcache object, to be passed to
@@ -61,9 +62,11 @@ class Minify_Cache_Memcache implements Minify_CacheInterface {
             return false;
         }
 
-        return (function_exists('mb_strlen') && ((int)ini_get('mbstring.func_overload') & 2))
-            ? mb_strlen($this->_data, '8bit')
-            : strlen($this->_data);
+        if (function_exists('mb_strlen') && ((int)ini_get('mbstring.func_overload') & 2)) {
+            return mb_strlen($this->_data, '8bit');
+        } else {
+            return strlen($this->_data);
+        }
     }
 
     /**
@@ -87,12 +90,10 @@ class Minify_Cache_Memcache implements Minify_CacheInterface {
      */
     public function display($id)
     {
-        echo $this->_fetch($id)
-            ? $this->_data
-            : '';
+        echo $this->_fetch($id) ? $this->_data : '';
     }
 
-	/**
+    /**
      * Fetch the cached content
      *
      * @param string $id cache id
@@ -101,9 +102,7 @@ class Minify_Cache_Memcache implements Minify_CacheInterface {
      */
     public function fetch($id)
     {
-        return $this->_fetch($id)
-            ? $this->_data
-            : '';
+        return $this->_fetch($id) ? $this->_data : '';
     }
 
     private $_mc = null;
@@ -114,7 +113,7 @@ class Minify_Cache_Memcache implements Minify_CacheInterface {
     private $_data = null;
     private $_id = null;
 
-	/**
+    /**
      * Fetch data and timestamp from memcache, store in instance
      *
      * @param string $id
@@ -126,12 +125,14 @@ class Minify_Cache_Memcache implements Minify_CacheInterface {
         if ($this->_id === $id) {
             return true;
         }
+
         $ret = $this->_mc->get($id);
         if (false === $ret) {
             $this->_id = null;
 
             return false;
         }
+
         list($this->_lm, $this->_data) = explode('|', $ret, 2);
         $this->_id = $id;
 
diff --git a/lib/Minify/Cache/Null.php b/lib/Minify/Cache/Null.php
index 38c77c7..4f654a6 100644
--- a/lib/Minify/Cache/Null.php
+++ b/lib/Minify/Cache/Null.php
@@ -8,7 +8,8 @@
  *
  * @package Minify
  */
-class Minify_Cache_Null implements Minify_CacheInterface {
+class Minify_Cache_Null implements Minify_CacheInterface
+{
     /**
      * Write data to cache.
      *
diff --git a/lib/Minify/Cache/WinCache.php b/lib/Minify/Cache/WinCache.php
index 4097500..46e285a 100644
--- a/lib/Minify/Cache/WinCache.php
+++ b/lib/Minify/Cache/WinCache.php
@@ -60,7 +60,11 @@ class Minify_Cache_WinCache implements Minify_CacheInterface
             return false;
         }
 
-        return (function_exists('mb_strlen') && ((int) ini_get('mbstring.func_overload') & 2)) ? mb_strlen($this->_data, '8bit') : strlen($this->_data);
+        if (function_exists('mb_strlen') && ((int) ini_get('mbstring.func_overload') & 2)) {
+            return mb_strlen($this->_data, '8bit');
+        } else {
+            return strlen($this->_data);
+        }
     }
 
     /**
@@ -99,12 +103,12 @@ class Minify_Cache_WinCache implements Minify_CacheInterface
         return $this->_fetch($id) ? $this->_data : '';
     }
 
-    private $_exp = NULL;
+    private $_exp = null;
 
     // cache of most recently fetched id
-    private $_lm = NULL;
-    private $_data = NULL;
-    private $_id = NULL;
+    private $_lm = null;
+    private $_data = null;
+    private $_id = null;
 
     /**
      * Fetch data and timestamp from WinCache, store in instance
@@ -118,13 +122,15 @@ class Minify_Cache_WinCache implements Minify_CacheInterface
         if ($this->_id === $id) {
             return true;
         }
+
         $suc = false;
         $ret = wincache_ucache_get($id, $suc);
         if (!$suc) {
-            $this->_id = NULL;
+            $this->_id = null;
 
             return false;
         }
+
         list($this->_lm, $this->_data) = explode('|', $ret, 2);
         $this->_id = $id;
 
diff --git a/lib/Minify/Cache/XCache.php b/lib/Minify/Cache/XCache.php
index 4edd261..f293cb3 100644
--- a/lib/Minify/Cache/XCache.php
+++ b/lib/Minify/Cache/XCache.php
@@ -17,7 +17,8 @@
  * @package Minify
  * @author Elan Ruusamäe <glen@delfi.ee>
  **/
-class Minify_Cache_XCache implements Minify_CacheInterface {
+class Minify_Cache_XCache implements Minify_CacheInterface
+{
 
     /**
      * Create a Minify_Cache_XCache object, to be passed to
@@ -55,9 +56,11 @@ class Minify_Cache_XCache implements Minify_CacheInterface {
             return false;
         }
 
-        return (function_exists('mb_strlen') && ((int)ini_get('mbstring.func_overload') & 2))
-            ? mb_strlen($this->_data, '8bit')
-            : strlen($this->_data);
+        if (function_exists('mb_strlen') && ((int)ini_get('mbstring.func_overload') & 2)) {
+            return mb_strlen($this->_data, '8bit');
+        } else {
+            return strlen($this->_data);
+        }
     }
 
     /**
@@ -79,9 +82,7 @@ class Minify_Cache_XCache implements Minify_CacheInterface {
      */
     public function display($id)
     {
-        echo $this->_fetch($id)
-            ? $this->_data
-            : '';
+        echo $this->_fetch($id) ? $this->_data : '';
     }
 
     /**
@@ -92,9 +93,7 @@ class Minify_Cache_XCache implements Minify_CacheInterface {
      */
     public function fetch($id)
     {
-        return $this->_fetch($id)
-            ? $this->_data
-            : '';
+        return $this->_fetch($id) ? $this->_data : '';
     }
 
     private $_exp = null;
@@ -115,12 +114,14 @@ class Minify_Cache_XCache implements Minify_CacheInterface {
         if ($this->_id === $id) {
             return true;
         }
+
         $ret = xcache_get($id);
         if (false === $ret) {
             $this->_id = null;
 
             return false;
         }
+
         list($this->_lm, $this->_data) = explode('|', $ret, 2);
         $this->_id = $id;
 
diff --git a/lib/Minify/Cache/ZendPlatform.php b/lib/Minify/Cache/ZendPlatform.php
index 9e5d248..76e9920 100644
--- a/lib/Minify/Cache/ZendPlatform.php
+++ b/lib/Minify/Cache/ZendPlatform.php
@@ -16,7 +16,8 @@
  * @package Minify
  * @author Patrick van Dissel
  */
-class Minify_Cache_ZendPlatform implements Minify_CacheInterface {
+class Minify_Cache_ZendPlatform implements Minify_CacheInterface
+{
 
     /**
      * Create a Minify_Cache_ZendPlatform object, to be passed to
@@ -54,9 +55,7 @@ class Minify_Cache_ZendPlatform implements Minify_CacheInterface {
      */
     public function getSize($id)
     {
-        return $this->_fetch($id)
-            ? strlen($this->_data)
-            : false;
+        return $this->_fetch($id) ? strlen($this->_data) : false;
     }
 
     /**
@@ -70,9 +69,7 @@ class Minify_Cache_ZendPlatform implements Minify_CacheInterface {
      */
     public function isValid($id, $srcMtime)
     {
-        $ret = ($this->_fetch($id) && ($this->_lm >= $srcMtime));
-
-        return $ret;
+        return ($this->_fetch($id) && ($this->_lm >= $srcMtime));
     }
 
     /**
@@ -82,9 +79,7 @@ class Minify_Cache_ZendPlatform implements Minify_CacheInterface {
      */
     public function display($id)
     {
-        echo $this->_fetch($id)
-            ? $this->_data
-            : '';
+        echo $this->_fetch($id) ? $this->_data : '';
     }
 
     /**
@@ -96,9 +91,7 @@ class Minify_Cache_ZendPlatform implements Minify_CacheInterface {
      */
     public function fetch($id)
     {
-        return $this->_fetch($id)
-            ? $this->_data
-            : '';
+        return $this->_fetch($id) ? $this->_data : '';
     }
 
     private $_exp = null;
@@ -120,12 +113,14 @@ class Minify_Cache_ZendPlatform implements Minify_CacheInterface {
         if ($this->_id === $id) {
             return true;
         }
+
         $ret = output_cache_get($id, $this->_exp);
         if (false === $ret) {
             $this->_id = null;
 
             return false;
         }
+
         list($this->_lm, $this->_data) = explode('|', $ret, 2);
         $this->_id = $id;
 
diff --git a/lib/Minify/CacheInterface.php b/lib/Minify/CacheInterface.php
index 56b79b8..1b891b1 100644
--- a/lib/Minify/CacheInterface.php
+++ b/lib/Minify/CacheInterface.php
@@ -9,7 +9,8 @@
  *
  * @package Minify
  */
-interface Minify_CacheInterface {
+interface Minify_CacheInterface
+{
     /**
      * Write data to cache.
      *
diff --git a/lib/Minify/ClosureCompiler.php b/lib/Minify/ClosureCompiler.php
index 487cafe..26cbc67 100644
--- a/lib/Minify/ClosureCompiler.php
+++ b/lib/Minify/ClosureCompiler.php
@@ -24,19 +24,12 @@
  *
  * </code>
  *
- * @todo unit tests, $options docs
- * @todo more options support (or should just passthru them all?)
- *
  * @package Minify
  * @author Stephen Clay <steve@mrclay.org>
  * @author Elan Ruusamäe <glen@delfi.ee>
  */
 class Minify_ClosureCompiler
 {
-    const OPTION_CHARSET = 'charset';
-    const OPTION_COMPILATION_LEVEL = 'compilation_level';
-    const OPTION_WARNING_LEVEL = 'warning_level';
-
     public static $isDebug = false;
 
     /**
@@ -61,6 +54,17 @@ class Minify_ClosureCompiler
      */
     public static $javaExecutable = 'java';
 
+    /**
+     * Default command line options passed to closure-compiler
+     *
+     * @var array
+     */
+    public static $defaultOptions = array(
+        'charset' => 'utf-8',
+        'compilation_level' => 'SIMPLE_OPTIMIZATIONS',
+        'warning_level' => 'QUIET',
+    );
+
     /**
      * Minify a Javascript string
      *
@@ -137,7 +141,8 @@ class Minify_ClosureCompiler
         $this->checkJar(self::$jarFile);
         $server = array(
             self::$javaExecutable,
-            '-jar', escapeshellarg(self::$jarFile)
+            '-jar',
+            escapeshellarg(self::$jarFile)
         );
 
         return $server;
@@ -151,24 +156,13 @@ class Minify_ClosureCompiler
     {
         $args = array();
 
-        $o = array_merge(
-            array(
-                self::OPTION_CHARSET => 'utf-8',
-                self::OPTION_COMPILATION_LEVEL => 'SIMPLE_OPTIMIZATIONS',
-                self::OPTION_WARNING_LEVEL => 'QUIET',
-            ),
+        $options = array_merge(
+            static::$defaultOptions,
             $userOptions
         );
 
-        $charsetOption = $o[self::OPTION_CHARSET];
-        if (preg_match('/^[\\da-zA-Z0-9\\-]+$/', $charsetOption)) {
-            $args[] = "--charset {$charsetOption}";
-        }
-
-        foreach (array(self::OPTION_COMPILATION_LEVEL, self::OPTION_WARNING_LEVEL) as $opt) {
-            if ($o[$opt]) {
-                $args[] = "--{$opt} " . escapeshellarg($o[$opt]);
-            }
+        foreach ($options as $key => $value) {
+            $args[] = "--{$key} " . escapeshellarg($value);
         }
 
         return $args;
diff --git a/lib/Minify/CommentPreserver.php b/lib/Minify/CommentPreserver.php
index 00db9ff..6bdb6f3 100644
--- a/lib/Minify/CommentPreserver.php
+++ b/lib/Minify/CommentPreserver.php
@@ -10,7 +10,8 @@
  * @package Minify
  * @author Stephen Clay <steve@mrclay.org>
  */
-class Minify_CommentPreserver {
+class Minify_CommentPreserver
+{
 
     /**
      * String to be prepended to each preserved comment
@@ -71,21 +72,16 @@ class Minify_CommentPreserver {
      */
     private static function _nextComment($in)
     {
-        if (
-            false === ($start = strpos($in, '/*!'))
-            || false === ($end = strpos($in, '*/', $start + 3))
-        ) {
+        if (false === ($start = strpos($in, '/*!')) || false === ($end = strpos($in, '*/', $start + 3))) {
             return array($in, false, false);
         }
-        $ret = array(
-            substr($in, 0, $start)
-            ,self::$prepend . '/*!' . substr($in, $start + 3, $end - $start - 1) . self::$append
-        );
-        $endChars = (strlen($in) - $end - 2);
-        $ret[] = (0 === $endChars)
-            ? ''
-            : substr($in, -$endChars);
 
-        return $ret;
+        $beforeComment = substr($in, 0, $start);
+        $comment = self::$prepend . '/*!' . substr($in, $start + 3, $end - $start - 1) . self::$append;
+
+        $endChars = (strlen($in) - $end - 2);
+        $afterComment = (0 === $endChars) ? '' : substr($in, -$endChars);
+
+        return array($beforeComment, $comment, $afterComment);
     }
 }
diff --git a/lib/Minify/Controller/Base.php b/lib/Minify/Controller/Base.php
index e95e6e9..54a60c9 100644
--- a/lib/Minify/Controller/Base.php
+++ b/lib/Minify/Controller/Base.php
@@ -15,7 +15,8 @@ use Monolog\Logger;
  * @package Minify
  * @author Stephen Clay <steve@mrclay.org>
  */
-abstract class Minify_Controller_Base implements Minify_ControllerInterface {
+abstract class Minify_Controller_Base implements Minify_ControllerInterface
+{
 
     /**
      * @var Minify_Env
diff --git a/lib/Minify/Controller/Files.php b/lib/Minify/Controller/Files.php
index da22bd3..85a76d0 100644
--- a/lib/Minify/Controller/Files.php
+++ b/lib/Minify/Controller/Files.php
@@ -4,7 +4,6 @@
  * @package Minify
  */
 
-use Psr\Log\LoggerInterface;
 use Monolog\Logger;
 
 /**
@@ -29,7 +28,8 @@ use Monolog\Logger;
  * @package Minify
  * @author Stephen Clay <steve@mrclay.org>
  */
-class Minify_Controller_Files extends Minify_Controller_Base {
+class Minify_Controller_Files extends Minify_Controller_Base
+{
 
     /**
      * Set up file sources
@@ -41,7 +41,8 @@ class Minify_Controller_Files extends Minify_Controller_Base {
      *
      * 'files': (required) array of complete file paths, or a single path
      */
-    public function createConfiguration(array $options) {
+    public function createConfiguration(array $options)
+    {
         // strip controller options
 
         $files = $options['files'];
diff --git a/lib/Minify/Controller/Groups.php b/lib/Minify/Controller/Groups.php
index 5c415e0..8938288 100644
--- a/lib/Minify/Controller/Groups.php
+++ b/lib/Minify/Controller/Groups.php
@@ -23,7 +23,8 @@
  * @package Minify
  * @author Stephen Clay <steve@mrclay.org>
  */
-class Minify_Controller_Groups extends Minify_Controller_Files {
+class Minify_Controller_Groups extends Minify_Controller_Files
+{
 
     /**
      * Set up groups of files as sources
@@ -35,7 +36,8 @@ class Minify_Controller_Groups extends Minify_Controller_Files {
      *
      * @return array Minify options
      */
-    public function createConfiguration(array $options) {
+    public function createConfiguration(array $options)
+    {
         // strip controller options
         $groups = $options['groups'];
         unset($options['groups']);
@@ -43,12 +45,14 @@ class Minify_Controller_Groups extends Minify_Controller_Files {
         $server = $this->env->server();
 
         // mod_fcgid places PATH_INFO in ORIG_PATH_INFO
-        $pathInfo = isset($server['ORIG_PATH_INFO'])
-            ? substr($server['ORIG_PATH_INFO'], 1)
-            : (isset($server['PATH_INFO'])
-                ? substr($server['PATH_INFO'], 1)
-                : false
-            );
+        if (isset($server['ORIG_PATH_INFO'])) {
+            $pathInfo = substr($server['ORIG_PATH_INFO'], 1);
+        } elseif (isset($server['PATH_INFO'])) {
+            $pathInfo = substr($server['PATH_INFO'], 1)
+        } else {
+            $pathInfo = false;
+        }
+
         if (false === $pathInfo || ! isset($groups[$pathInfo])) {
             // no PATH_INFO or not a valid group
             $this->logger->info("Missing PATH_INFO or no group set for \"$pathInfo\"");
diff --git a/lib/Minify/Controller/MinApp.php b/lib/Minify/Controller/MinApp.php
index 80a05c5..e8440fe 100644
--- a/lib/Minify/Controller/MinApp.php
+++ b/lib/Minify/Controller/MinApp.php
@@ -10,7 +10,8 @@
  * @package Minify
  * @author Stephen Clay <steve@mrclay.org>
  */
-class Minify_Controller_MinApp extends Minify_Controller_Base {
+class Minify_Controller_MinApp extends Minify_Controller_Base
+{
 
     /**
      * Set up groups of files as sources
@@ -19,7 +20,8 @@ class Minify_Controller_MinApp extends Minify_Controller_Base {
      *
      * @return array Minify options
      */
-    public function createConfiguration(array $options) {
+    public function createConfiguration(array $options)
+    {
         // PHP insecure by default: realpath() and other FS functions can't handle null bytes.
         $get = $this->env->get();
         foreach (array('g', 'b', 'f') as $key) {
@@ -29,14 +31,14 @@ class Minify_Controller_MinApp extends Minify_Controller_Base {
         }
 
         // filter controller options
-        $localOptions = array_merge(
-            array(
-                'groupsOnly' => false,
-                'groups' => array(),
-                'symlinks' => array(),
-            )
-            ,(isset($options['minApp']) ? $options['minApp'] : array())
+        $defaults = array(
+            'groupsOnly' => false,
+            'groups' => array(),
+            'symlinks' => array(),
         );
+        $minApp = isset($options['minApp']) ? $options['minApp'] : array();
+        $localOptions = array_merge($defaults, $minApp);
+
         unset($options['minApp']);
 
         // normalize $symlinks in order to map to target
@@ -51,7 +53,7 @@ class Minify_Controller_MinApp extends Minify_Controller_Base {
 
         $sources = array();
         $selectionId = '';
-        $firstMissingResource = null;
+        $firstMissing = null;
 
         if (isset($get['g'])) {
             // add group(s)
@@ -81,12 +83,12 @@ class Minify_Controller_MinApp extends Minify_Controller_Base {
                         $sources[] = $source;
                     } catch (Minify_Source_FactoryException $e) {
                         $this->logger->error($e->getMessage());
-                        if (null === $firstMissingResource) {
-                            $firstMissingResource = basename($file);
+                        if (null === $firstMissing) {
+                            $firstMissing = basename($file);
                             continue;
                         } else {
-                            $secondMissingResource = basename($file);
-                            $this->logger->info("More than one file was missing: '$firstMissingResource', '$secondMissingResource'");
+                            $secondMissing = basename($file);
+                            $this->logger->info("More than one file was missing: '$firstMissing', '$secondMissing'");
 
                             return new Minify_ServeConfiguration($options);
                         }
@@ -98,18 +100,18 @@ class Minify_Controller_MinApp extends Minify_Controller_Base {
             // try user files
             // The following restrictions are to limit the URLs that minify will
             // respond to.
-            if (// verify at least one file, files are single comma separated,
-                // and are all same extension
-                ! preg_match('/^[^,]+\\.(css|less|js)(?:,[^,]+\\.\\1)*$/', $get['f'], $m)
-                // no "//"
-                || strpos($get['f'], '//') !== false
-                // no "\"
-                || strpos($get['f'], '\\') !== false
-            ) {
+
+            // verify at least one file, files are single comma separated, and are all same extension
+            $validPattern = preg_match('/^[^,]+\\.(css|less|scss|js)(?:,[^,]+\\.\\1)*$/', $get['f'], $m);
+            $hasComment = strpos($get['f'], '//') !== false;
+            $hasEscape = strpos($get['f'], '\\') !== false;
+
+            if (!$validPattern || $hasComment || $hasEscape) {
                 $this->logger->info("GET param 'f' was invalid");
 
                 return new Minify_ServeConfiguration($options);
             }
+
             $ext = ".{$m[1]}";
             $files = explode(',', $get['f']);
             if ($files != array_unique($files)) {
@@ -117,11 +119,14 @@ class Minify_Controller_MinApp extends Minify_Controller_Base {
 
                 return new Minify_ServeConfiguration($options);
             }
+
             if (isset($get['b'])) {
                 // check for validity
-                if (preg_match('@^[^/]+(?:/[^/]+)*$@', $get['b'])
-                        && false === strpos($get['b'], '..')
-                        && $get['b'] !== '.') {
+                $isValidBase = preg_match('@^[^/]+(?:/[^/]+)*$@', $get['b']);
+                $hasDots = false !== strpos($get['b'], '..');
+                $isDot = $get['b'] === '.';
+
+                if ($isValidBase && !$hasDots && !$isDot) {
                     // valid base
                     $base = "/{$get['b']}/";
                 } else {
@@ -152,12 +157,12 @@ class Minify_Controller_MinApp extends Minify_Controller_Base {
                     $basenames[] = basename($path, $ext);
                 } catch (Minify_Source_FactoryException $e) {
                     $this->logger->error($e->getMessage());
-                    if (null === $firstMissingResource) {
-                        $firstMissingResource = $uri;
+                    if (null === $firstMissing) {
+                        $firstMissing = $uri;
                         continue;
                     } else {
-                        $secondMissingResource = $uri;
-                        $this->logger->info("More than one file was missing: '$firstMissingResource', '$secondMissingResource`'");
+                        $secondMissing = $uri;
+                        $this->logger->info("More than one file was missing: '$firstMissing', '$secondMissing`'");
 
                         return new Minify_ServeConfiguration($options);
                     }
@@ -175,14 +180,14 @@ class Minify_Controller_MinApp extends Minify_Controller_Base {
             return new Minify_ServeConfiguration($options);
         }
 
-        if (null !== $firstMissingResource) {
+        if (null !== $firstMissing) {
             array_unshift($sources, new Minify_Source(array(
-                'id' => 'missingFile'
+                'id' => 'missingFile',
                 // should not cause cache invalidation
-                ,'lastModified' => 0
+                'lastModified' => 0,
                 // due to caching, filename is unreliable.
-                ,'content' => "/* Minify: at least one missing file. See " . Minify::URL_DEBUG . " */\n"
-                ,'minifier' => 'Minify::nullMinifier'
+                'content' => "/* Minify: at least one missing file. See " . Minify::URL_DEBUG . " */\n",
+                'minifier' => 'Minify::nullMinifier',
             )));
         }
 
diff --git a/lib/Minify/Controller/Page.php b/lib/Minify/Controller/Page.php
index 8120479..7001fe0 100644
--- a/lib/Minify/Controller/Page.php
+++ b/lib/Minify/Controller/Page.php
@@ -11,7 +11,8 @@
  * @package Minify
  * @author Stephen Clay <steve@mrclay.org>
  */
-class Minify_Controller_Page extends Minify_Controller_Base {
+class Minify_Controller_Page extends Minify_Controller_Base
+{
 
     /**
      * Set up source of HTML content
@@ -31,7 +32,8 @@ class Minify_Controller_Page extends Minify_Controller_Base {
      * 'minifyAll': should all CSS and Javascript blocks be individually
      * minified? (default false)
      */
-    public function createConfiguration(array $options) {
+    public function createConfiguration(array $options)
+    {
         if (isset($options['file'])) {
             $sourceSpec = array(
                 'filepath' => $options['file']
@@ -40,8 +42,8 @@ class Minify_Controller_Page extends Minify_Controller_Base {
         } else {
             // strip controller options
             $sourceSpec = array(
-                'content' => $options['content']
-                ,'id' => $options['id']
+                'content' => $options['content'],
+                'id' => $options['id'],
             );
             $f = $options['id'];
             unset($options['content'], $options['id']);
@@ -52,8 +54,8 @@ class Minify_Controller_Page extends Minify_Controller_Base {
         if (isset($options['minifyAll'])) {
             // this will be the 2nd argument passed to Minify_HTML::minify()
             $sourceSpec['minifyOptions'] = array(
-                'cssMinifier' => array('Minify_CSSmin', 'minify')
-                ,'jsMinifier' => array('JSMin\\JSMin', 'minify')
+                'cssMinifier' => array('Minify_CSSmin', 'minify'),
+                'jsMinifier' => array('JSMin\\JSMin', 'minify'),
             );
             unset($options['minifyAll']);
         }
diff --git a/lib/Minify/ControllerInterface.php b/lib/Minify/ControllerInterface.php
index ebd71a4..35b4de3 100644
--- a/lib/Minify/ControllerInterface.php
+++ b/lib/Minify/ControllerInterface.php
@@ -1,8 +1,8 @@
 <?php
 
-use Psr\Log\LoggerInterface;
 
-interface Minify_ControllerInterface {
+interface Minify_ControllerInterface
+{
 
     /**
      * Create controller sources and options for Minify::serve()
diff --git a/lib/Minify/DebugDetector.php b/lib/Minify/DebugDetector.php
index 99b6d3c..19d03d0 100644
--- a/lib/Minify/DebugDetector.php
+++ b/lib/Minify/DebugDetector.php
@@ -6,12 +6,14 @@
  * @package Minify
  * @author Stephen Clay <steve@mrclay.org>
  */
-class Minify_DebugDetector {
+class Minify_DebugDetector
+{
     public static function shouldDebugRequest(Minify_Env $env)
     {
         if ($env->get('debug') !== null) {
             return true;
         }
+
         $cookieValue = $env->cookie('minifyDebug');
         if ($cookieValue) {
             foreach (preg_split('/\\s+/', $cookieValue) as $debugUri) {
diff --git a/lib/Minify/Env.php b/lib/Minify/Env.php
index 5727e84..25490bc 100644
--- a/lib/Minify/Env.php
+++ b/lib/Minify/Env.php
@@ -1,6 +1,7 @@
 <?php
 
-class Minify_Env {
+class Minify_Env
+{
 
     /**
      * @return string
@@ -33,6 +34,7 @@ class Minify_Env {
         } else {
             $this->server['DOCUMENT_ROOT'] = rtrim($this->server['DOCUMENT_ROOT'], '/\\');
         }
+
         $this->server['DOCUMENT_ROOT'] = $this->normalizePath($this->server['DOCUMENT_ROOT']);
         $this->get = $options['get'];
         $this->post = $options['post'];
@@ -45,9 +47,7 @@ class Minify_Env {
             return $this->server;
         }
 
-        return isset($this->server[$key])
-            ? $this->server[$key]
-            : null;
+        return isset($this->server[$key]) ? $this->server[$key] : null;
     }
 
     public function cookie($key = null, $default = null)
@@ -92,11 +92,13 @@ class Minify_Env {
         if ($realpath) {
             $path = $realpath;
         }
+
         $path = str_replace('\\', '/', $path);
         $path = rtrim($path, '/');
         if (substr($path, 1, 1) === ':') {
             $path = lcfirst($path);
         }
+
         return $path;
     }
 
@@ -116,11 +118,9 @@ class Minify_Env {
         if (isset($server['SERVER_SOFTWARE']) && 0 !== strpos($server['SERVER_SOFTWARE'], 'Microsoft-IIS/')) {
             throw new InvalidArgumentException('DOCUMENT_ROOT is not provided and could not be computed');
         }
-        $docRoot = substr(
-            $server['SCRIPT_FILENAME']
-            ,0
-            ,strlen($server['SCRIPT_FILENAME']) - strlen($server['SCRIPT_NAME'])
-        );
+
+        $substrLength = strlen($server['SCRIPT_FILENAME']) - strlen($server['SCRIPT_NAME']);
+        $docRoot = substr($server['SCRIPT_FILENAME'], 0, $substrLength);
 
         return rtrim($docRoot, '\\');
     }
diff --git a/lib/Minify/HTML.php b/lib/Minify/HTML.php
index ce01650..0cabbfb 100644
--- a/lib/Minify/HTML.php
+++ b/lib/Minify/HTML.php
@@ -16,7 +16,8 @@
  * @package Minify
  * @author Stephen Clay <steve@mrclay.org>
  */
-class Minify_HTML {
+class Minify_HTML
+{
     /**
      * @var boolean
      */
@@ -40,7 +41,8 @@ class Minify_HTML {
      *
      * @return string
      */
-    public static function minify($html, $options = array()) {
+    public static function minify($html, $options = array())
+    {
         $min = new self($html, $options);
 
         return $min->process();
diff --git a/lib/Minify/HTML/Helper.php b/lib/Minify/HTML/Helper.php
index c67d891..bfded8b 100644
--- a/lib/Minify/HTML/Helper.php
+++ b/lib/Minify/HTML/Helper.php
@@ -10,7 +10,8 @@
  * @package Minify
  * @author Stephen Clay <steve@mrclay.org>
  */
-class Minify_HTML_Helper {
+class Minify_HTML_Helper
+{
     public $rewriteWorks = true;
     public $minAppUri = '/min';
     public $groupsConfigFile = '';
@@ -98,8 +99,7 @@ class Minify_HTML_Helper {
         foreach ($files as $k => $file) {
             if (0 === strpos($file, '//')) {
                 $file = substr($file, 2);
-            } elseif (0 === strpos($file, '/')
-                      || 1 === strpos($file, ':\\')) {
+            } elseif (0 === strpos($file, '/') || 1 === strpos($file, ':\\')) {
                 $file = substr($file, strlen(self::app()->env->getDocRoot()) + 1);
             }
             $file = strtr($file, '\\', '/');
@@ -168,11 +168,13 @@ class Minify_HTML_Helper {
         static $cached;
         if ($app) {
             $cached = $app;
+
             return $app;
         }
         if ($cached === null) {
             $cached = (require __DIR__ . '/../../../bootstrap.php');
         }
+
         return $cached;
     }
 
@@ -188,7 +190,8 @@ class Minify_HTML_Helper {
      * @param int $pos index to check
      * @return mixed a common char or '' if any do not match
      */
-    protected static function _getCommonCharAtPos($arr, $pos) {
+    protected static function _getCommonCharAtPos($arr, $pos)
+    {
         if (!isset($arr[0][$pos])) {
             return '';
         }
@@ -213,7 +216,8 @@ class Minify_HTML_Helper {
      * @param string $minRoot root-relative URI of the "min" application
      * @return string
      */
-    protected static function _getShortestUri($paths, $minRoot = '/min/') {
+    protected static function _getShortestUri($paths, $minRoot = '/min/')
+    {
         $pos = 0;
         $base = '';
         while (true) {
@@ -238,9 +242,7 @@ class Minify_HTML_Helper {
             $base = substr($base, 0, strlen($base) - 1);
             $bUri = $minRoot . 'b=' . $base . '&f=' . implode(',', $basedPaths);
 
-            $uri = strlen($uri) < strlen($bUri)
-                ? $uri
-                : $bUri;
+            $uri = strlen($uri) < strlen($bUri) ? $uri : $bUri;
         }
 
         return $uri;
diff --git a/lib/Minify/ImportProcessor.php b/lib/Minify/ImportProcessor.php
index 715a9bf..09ec64c 100644
--- a/lib/Minify/ImportProcessor.php
+++ b/lib/Minify/ImportProcessor.php
@@ -18,8 +18,8 @@
  * @author Stephen Clay <steve@mrclay.org>
  * @author Simon Schick <simonsimcity@gmail.com>
  */
-class Minify_ImportProcessor {
-
+class Minify_ImportProcessor
+{
     public static $filesIncluded = array();
 
     public static function process($file)
@@ -57,8 +57,7 @@ class Minify_ImportProcessor {
         $file = realpath($file);
         if (! $file
             || in_array($file, self::$filesIncluded)
-            || false === ($content = @file_get_contents($file))
-        ) {
+            || false === ($content = @file_get_contents($file))) {
             // file missing, already included, or failed read
             return '';
         }
@@ -73,8 +72,7 @@ class Minify_ImportProcessor {
         $content = str_replace("\r\n", "\n", $content);
 
         // process @imports
-        $content = preg_replace_callback(
-            '/
+        $pattern = '/
                 @import\\s+
                 (?:url\\(\\s*)?      # maybe url(
                 [\'"]?               # maybe quote
@@ -83,19 +81,14 @@ class Minify_ImportProcessor {
                 (?:\\s*\\))?         # maybe )
                 ([a-zA-Z,\\s]*)?     # 2 = media list
                 ;                    # end token
-            /x'
-            ,array($this, '_importCB')
-            ,$content
-        );
+            /x';
+        $content = preg_replace_callback($pattern, array($this, '_importCB'), $content);
 
         // You only need to rework the import-path if the script is imported
         if (self::$_isCss && $is_imported) {
             // rewrite remaining relative URIs
-            $content = preg_replace_callback(
-                '/url\\(\\s*([^\\)\\s]+)\\s*\\)/'
-                ,array($this, '_urlCB')
-                ,$content
-            );
+            $pattern = '/url\\(\\s*([^\\)\\s]+)\\s*\\)/';
+            $content = preg_replace_callback($pattern, array($this, '_urlCB'), $content);
         }
 
         return $this->_importedContent . $content;
@@ -139,12 +132,10 @@ class Minify_ImportProcessor {
     private function _urlCB($m)
     {
         // $m[1] is either quoted or not
-        $quote = ($m[1][0] === "'" || $m[1][0] === '"')
-            ? $m[1][0]
-            : '';
-        $url = ($quote === '')
-            ? $m[1]
-            : substr($m[1], 1, strlen($m[1]) - 2);
+        $quote = ($m[1][0] === "'" || $m[1][0] === '"') ? $m[1][0] : '';
+
+        $url = ($quote === '') ? $m[1] : substr($m[1], 1, strlen($m[1]) - 2);
+
         if ('/' !== $url[0]) {
             if (strpos($url, '//') > 0) {
                 // probably starts with protocol, do not alter
@@ -173,8 +164,7 @@ class Minify_ImportProcessor {
 
         $arFrom = explode($ps, rtrim($realFrom, $ps));
         $arTo = explode($ps, rtrim($realTo, $ps));
-        while (count($arFrom) && count($arTo) && ($arFrom[0] == $arTo[0]))
-        {
+        while (count($arFrom) && count($arTo) && ($arFrom[0] == $arTo[0])) {
             array_shift($arFrom);
             array_shift($arTo);
         }
@@ -191,28 +181,33 @@ class Minify_ImportProcessor {
     private function truepath($path)
     {
         // whether $path is unix or not
-        $unipath = strlen($path) == 0 || $path{0} != '/';
+        $unipath = (strlen($path) == 0) || ($path{0} != '/');
+
         // attempts to detect if path is relative in which case, add cwd
-        if (strpos($path, ':') === false && $unipath)
+        if (strpos($path, ':') === false && $unipath) {
             $path = $this->_currentDir . DIRECTORY_SEPARATOR . $path;
+        }
 
         // resolve path parts (single dot, double dot and double delimiters)
         $path = str_replace(array('/', '\\'), DIRECTORY_SEPARATOR, $path);
         $parts = array_filter(explode(DIRECTORY_SEPARATOR, $path), 'strlen');
         $absolutes = array();
         foreach ($parts as $part) {
-            if ('.' == $part)
+            if ('.' == $part) {
                 continue;
+            }
             if ('..' == $part) {
                 array_pop($absolutes);
             } else {
                 $absolutes[] = $part;
             }
         }
+
         $path = implode(DIRECTORY_SEPARATOR, $absolutes);
         // resolve any symlinks
-        if (file_exists($path) && linkinfo($path) > 0)
+        if (file_exists($path) && linkinfo($path) > 0) {
             $path = readlink($path);
+        }
         // put initial separator that could have been lost
         $path = !$unipath ? '/' . $path : $path;
 
diff --git a/lib/Minify/JS/ClosureCompiler.php b/lib/Minify/JS/ClosureCompiler.php
index ade3c2f..20381a2 100644
--- a/lib/Minify/JS/ClosureCompiler.php
+++ b/lib/Minify/JS/ClosureCompiler.php
@@ -13,7 +13,8 @@
  *
  * @todo can use a stream wrapper to unit test this?
  */
-class Minify_JS_ClosureCompiler {
+class Minify_JS_ClosureCompiler
+{
 
     /**
      * @var string The option key for the maximum POST byte size
@@ -228,4 +229,6 @@ class Minify_JS_ClosureCompiler {
     }
 }
 
-class Minify_JS_ClosureCompiler_Exception extends Exception {}
+class Minify_JS_ClosureCompiler_Exception extends Exception
+{
+}
diff --git a/lib/Minify/JS/JShrink.php b/lib/Minify/JS/JShrink.php
new file mode 100644
index 0000000..70507a3
--- /dev/null
+++ b/lib/Minify/JS/JShrink.php
@@ -0,0 +1,48 @@
+<?php
+/**
+ * Class Minify\JS\JShrink
+ *
+ * @package Minify
+ */
+
+namespace Minify\JS;
+
+/**
+ * Wrapper to Javascript Minifier built in PHP http://www.tedivm.com
+ *
+ * @package Minify
+ * @author  Elan Ruusamäe <glen@pld-linux.org>
+ * @link    https://github.com/tedious/JShrink
+ *
+ */
+class JShrink
+{
+    /**
+     * Contains the default options for minification. This array is merged with
+     * the one passed in by the user to create the request specific set of
+     * options (stored in the $options attribute).
+     *
+     * @var string[]
+     */
+    protected static $defaultOptions = array('flaggedComments' => true);
+
+    /**
+     * Takes a string containing javascript and removes unneeded characters in
+     * order to shrink the code without altering it's functionality.
+     *
+     * @param  string $js      The raw javascript to be minified
+     * @param  array  $options Various runtime options in an associative array
+     *
+     * @see JShrink\Minifier::minify()
+     * @return string
+     */
+    public static function minify($js, array $options = array())
+    {
+        $options = array_merge(
+            self::$defaultOptions,
+            $options
+        );
+
+        return \JShrink\Minifier::minify($js, $options);
+    }
+}
diff --git a/lib/Minify/LessCssSource.php b/lib/Minify/LessCssSource.php
index e5a4314..8fa2e63 100644
--- a/lib/Minify/LessCssSource.php
+++ b/lib/Minify/LessCssSource.php
@@ -1,6 +1,7 @@
 <?php
 
-class Minify_LessCssSource extends Minify_Source {
+class Minify_LessCssSource extends Minify_Source
+{
     /**
      * @var Minify_CacheInterface
      */
@@ -16,7 +17,8 @@ class Minify_LessCssSource extends Minify_Source {
     /**
      * @inheritdoc
      */
-    public function __construct(array $spec, Minify_CacheInterface $cache) {
+    public function __construct(array $spec, Minify_CacheInterface $cache)
+    {
         parent::__construct($spec);
 
         $this->cache = $cache;
@@ -27,16 +29,11 @@ class Minify_LessCssSource extends Minify_Source {
      *
      * @return int
      */
-    public function getLastModified() {
+    public function getLastModified()
+    {
         $cache = $this->getCache();
 
-        $lastModified = 0;
-        foreach ($cache['files'] as $mtime) {
-            $lastModified = max($lastModified, $mtime);
-
-        }
-
-        return $lastModified;
+        return $cache['lastModified'];
     }
 
     /**
@@ -44,7 +41,8 @@ class Minify_LessCssSource extends Minify_Source {
      *
      * @return string
      */
-    public function getContent() {
+    public function getContent()
+    {
         $cache = $this->getCache();
 
         return $cache['compiled'];
@@ -55,7 +53,8 @@ class Minify_LessCssSource extends Minify_Source {
      *
      * @return array
      */
-    private function getCache() {
+    private function getCache()
+    {
         // cache for single run
         // so that getLastModified and getContent in single request do not add additional cache roundtrips (i.e memcache)
         if (isset($this->parsed)) {
@@ -76,12 +75,29 @@ class Minify_LessCssSource extends Minify_Source {
         $cache = $less->cachedCompile($input);
 
         if (!is_array($input) || $cache['updated'] > $input['updated']) {
+            $cache['lastModified'] = $this->getMaxLastModified($cache);
             $this->cache->store($cacheId, serialize($cache));
         }
 
         return $this->parsed = $cache;
     }
 
+    /**
+     * Calculate maximum last modified of all files,
+     * as the 'updated' timestamp in cache is not the same as file last modified timestamp:
+     * @link https://github.com/leafo/lessphp/blob/v0.4.0/lessc.inc.php#L1904
+     * @return int
+     */
+    private function getMaxLastModified($cache)
+    {
+        $lastModified = 0;
+        foreach ($cache['files'] as $mtime) {
+            $lastModified = max($lastModified, $mtime);
+        }
+
+        return $lastModified;
+    }
+
     /**
      * Make a unique cache id for for this source.
      *
@@ -89,10 +105,11 @@ class Minify_LessCssSource extends Minify_Source {
      *
      * @return string
      */
-    private function getCacheId($prefix = 'minify') {
+    private function getCacheId($prefix = 'minify')
+    {
         $md5 = md5($this->filepath);
 
-        return "{$prefix}_less_{$md5}";
+        return "{$prefix}_less2_{$md5}";
     }
 
     /**
@@ -100,7 +117,8 @@ class Minify_LessCssSource extends Minify_Source {
      *
      * @return lessc
      */
-    private function getCompiler() {
+    private function getCompiler()
+    {
         $less = new lessc();
         // do not spend CPU time letting less doing minify
         $less->setPreserveComments(true);
diff --git a/lib/Minify/Lines.php b/lib/Minify/Lines.php
index e046c59..499a9cc 100644
--- a/lib/Minify/Lines.php
+++ b/lib/Minify/Lines.php
@@ -11,7 +11,8 @@
  * @author Stephen Clay <steve@mrclay.org>
  * @author Adam Pedersen (Issue 55 fix)
  */
-class Minify_Lines {
+class Minify_Lines
+{
 
     /**
      * Add line numbers in C-style comments
@@ -36,16 +37,9 @@ class Minify_Lines {
      */
     public static function minify($content, $options = array())
     {
-        $id = (isset($options['id']) && $options['id'])
-            ? $options['id']
-            : '';
+        $id = (isset($options['id']) && $options['id']) ? $options['id'] : '';
         $content = str_replace("\r\n", "\n", $content);
 
-        // Hackily rewrite strings with XPath expressions that are
-        // likely to throw off our dumb parser (for Prototype 1.6.1).
-        $content = str_replace('"/*"', '"/"+"*"', $content);
-        $content = preg_replace('@([\'"])(\\.?//?)\\*@', '$1$2$1+$1*', $content);
-
         $lines = explode("\n", $content);
         $numLines = count($lines);
         // determine left padding
@@ -53,6 +47,7 @@ class Minify_Lines {
         $inComment = false;
         $i = 0;
         $newLines = array();
+
         while (null !== ($line = array_shift($lines))) {
             if (('' !== $id) && (0 == $i % 50)) {
                 if ($inComment) {
@@ -61,24 +56,25 @@ class Minify_Lines {
                     array_push($newLines, '', "/* {$id} */", '');
                 }
             }
+
             ++$i;
             $newLines[] = self::_addNote($line, $i, $inComment, $padTo);
             $inComment = self::_eolInComment($line, $inComment);
         }
+
         $content = implode("\n", $newLines) . "\n";
 
         // check for desired URI rewriting
         if (isset($options['currentDir'])) {
             Minify_CSS_UriRewriter::$debugText = '';
-            $content = Minify_CSS_UriRewriter::rewrite(
-                 $content
-                ,$options['currentDir']
-                ,isset($options['docRoot']) ? $options['docRoot'] : $_SERVER['DOCUMENT_ROOT']
-                ,isset($options['symlinks']) ? $options['symlinks'] : array()
-            );
+            $docRoot = isset($options['docRoot']) ? $options['docRoot'] : $_SERVER['DOCUMENT_ROOT'];
+            $symlinks = isset($options['symlinks']) ? $options['symlinks'] : array();
+
+            $content = Minify_CSS_UriRewriter::rewrite($content, $options['currentDir'], $docRoot, $symlinks);
+
             $content = "/* Minify_CSS_UriRewriter::\$debugText\n\n"
-                     . Minify_CSS_UriRewriter::$debugText . "*/\n"
-                     . $content;
+                 . Minify_CSS_UriRewriter::$debugText . "*/\n"
+                 . $content;
         }
 
         return $content;
@@ -89,33 +85,43 @@ class Minify_Lines {
      *
      * @param string $line current line of code
      *
-     * @param bool $inComment was the parser in a comment at the
-     * beginning of the line?
+     * @param bool $inComment was the parser in a C-style comment at the
+     * beginning of the previous line?
      *
      * @return bool
      */
     private static function _eolInComment($line, $inComment)
     {
-        // crude way to avoid things like // */
-        $line = preg_replace('~//.*?(\\*/|/\\*).*~', '', $line);
-
         while (strlen($line)) {
-            $search = $inComment
-                ? '*/'
-                : '/*';
-            $pos = strpos($line, $search);
-            if (false === $pos) {
-                return $inComment;
-            } else {
-                if ($pos == 0
-                    || ($inComment
-                        ? substr($line, $pos, 3)
-                        : substr($line, $pos-1, 3)) != '*/*')
-                {
-                        $inComment = ! $inComment;
+            if ($inComment) {
+                // only "*/" can end the comment
+                $index = self::_find($line, '*/');
+                if ($index === false) {
+                    return true;
                 }
-                $line = substr($line, $pos + 2);
+
+                // stop comment and keep walking line
+                $inComment = false;
+                @$line = (string)substr($line, $index + 2);
+                continue;
             }
+
+            // look for "//" and "/*"
+            $single = self::_find($line, '//');
+            $multi = self::_find($line, '/*');
+            if ($multi === false) {
+                return false;
+            }
+
+            if ($single === false || $multi < $single) {
+                // start comment and keep walking line
+                $inComment = true;
+                @$line = (string)substr($line, $multi + 2);
+                continue;
+            }
+
+            // a single-line comment preceeded it
+            return false;
         }
 
         return $inComment;
@@ -137,8 +143,67 @@ class Minify_Lines {
      */
     private static function _addNote($line, $note, $inComment, $padTo)
     {
-        return $inComment
-            ? '/* ' . str_pad($note, $padTo, ' ', STR_PAD_RIGHT) . ' *| ' . $line
-            : '/* ' . str_pad($note, $padTo, ' ', STR_PAD_RIGHT) . ' */ ' . $line;
+        if ($inComment) {
+            $line = '/* ' . str_pad($note, $padTo, ' ', STR_PAD_RIGHT) . ' *| ' . $line;
+        } else {
+            $line = '/* ' . str_pad($note, $padTo, ' ', STR_PAD_RIGHT) . ' */ ' . $line;
+        }
+
+        return rtrim($line);
+    }
+
+    /**
+     * Find a token trying to avoid false positives
+     *
+     * @param string $str   String containing the token
+     * @param string $token Token being checked
+     * @return bool
+     */
+    private static function _find($str, $token)
+    {
+        switch ($token) {
+            case '//':
+                $fakes = array(
+                    '://' => 1,
+                    '"//' => 1,
+                    '\'//' => 1,
+                    '".//' => 2,
+                    '\'.//' => 2,
+                );
+                break;
+            case '/*':
+                $fakes = array(
+                    '"/*' => 1,
+                    '\'/*' => 1,
+                    '"//*' => 2,
+                    '\'//*' => 2,
+                    '".//*' => 3,
+                    '\'.//*' => 3,
+                    '*/*' => 1,
+                    '\\/*' => 1,
+                );
+                break;
+            default:
+                $fakes = array();
+        }
+
+        $index = strpos($str, $token);
+        $offset = 0;
+
+        while ($index !== false) {
+            foreach ($fakes as $fake => $skip) {
+                $check = substr($str, $index - $skip, strlen($fake));
+                if ($check === $fake) {
+                    // move offset and scan again
+                    $offset += $index + strlen($token);
+                    $index = strpos($str, $token, $offset);
+                    break;
+                }
+            }
+            // legitimate find
+            return $index;
+        }
+
+        return $index;
     }
 }
diff --git a/lib/Minify/Logger/LegacyHandler.php b/lib/Minify/Logger/LegacyHandler.php
index 07f9991..273413c 100644
--- a/lib/Minify/Logger/LegacyHandler.php
+++ b/lib/Minify/Logger/LegacyHandler.php
@@ -2,7 +2,6 @@
 
 namespace Minify\Logger;
 
-use Monolog\Logger;
 use Monolog\Handler\AbstractProcessingHandler;
 
 class LegacyHandler extends AbstractProcessingHandler
diff --git a/lib/Minify/Packer.php b/lib/Minify/Packer.php
index f6fbcd8..7ddca79 100644
--- a/lib/Minify/Packer.php
+++ b/lib/Minify/Packer.php
@@ -19,7 +19,8 @@
  *
  * @package Minify
  */
-class Minify_Packer {
+class Minify_Packer
+{
     public static function minify($code, $options = array())
     {
         // @todo: set encoding options based on $options :)
diff --git a/lib/Minify/ScssCssSource.php b/lib/Minify/ScssCssSource.php
new file mode 100644
index 0000000..9aa58f0
--- /dev/null
+++ b/lib/Minify/ScssCssSource.php
@@ -0,0 +1,176 @@
+<?php
+use Leafo\ScssPhp\Compiler;
+use Leafo\ScssPhp\Server;
+use Leafo\ScssPhp\Version;
+
+/**
+ * Class for using SCSS files
+ *
+ * @link https://github.com/leafo/scssphp/
+ */
+class Minify_ScssCssSource extends Minify_Source
+{
+    /**
+     * @var Minify_CacheInterface
+     */
+    private $cache;
+
+    /**
+     * Parsed SCSS cache object
+     *
+     * @var array
+     */
+    private $parsed;
+
+    /**
+     * @inheritdoc
+     */
+    public function __construct(array $spec, Minify_CacheInterface $cache)
+    {
+        parent::__construct($spec);
+
+        $this->cache = $cache;
+    }
+
+    /**
+     * Get last modified of all parsed files
+     *
+     * @return int
+     */
+    public function getLastModified()
+    {
+        $cache = $this->getCache();
+
+        return $cache['updated'];
+    }
+
+    /**
+     * Get content
+     *
+     * @return string
+     */
+    public function getContent()
+    {
+        $cache = $this->getCache();
+
+        return $cache['content'];
+    }
+
+    /**
+     * Make a unique cache id for for this source.
+     *
+     * @param string $prefix
+     *
+     * @return string
+     */
+    private function getCacheId($prefix = 'minify')
+    {
+        $md5 = md5($this->filepath);
+
+        return "{$prefix}_scss_{$md5}";
+    }
+
+    /**
+     * Get SCSS cache object
+     *
+     * Runs the compilation if needed
+     *
+     * Implements Leafo\ScssPhp\Server logic because we need to get parsed files without parsing actual content
+     *
+     * @return array
+     */
+    private function getCache()
+    {
+        // cache for single run
+        // so that getLastModified and getContent in single request do not add additional cache roundtrips (i.e memcache)
+        if (isset($this->parsed)) {
+            return $this->parsed;
+        }
+
+        // check from cache first
+        $cache = null;
+        $cacheId = $this->getCacheId();
+        if ($this->cache->isValid($cacheId, 0)) {
+            if ($cache = $this->cache->fetch($cacheId)) {
+                $cache = unserialize($cache);
+            }
+        }
+
+        $input = $cache ? $cache : $this->filepath;
+
+        if ($this->cacheIsStale($cache)) {
+            $cache = $this->compile($this->filepath);
+        }
+
+        if (!is_array($input) || $cache['updated'] > $input['updated']) {
+            $this->cache->store($cacheId, serialize($cache));
+        }
+
+        return $this->parsed = $cache;
+    }
+
+    /**
+     * Determine whether .scss file needs to be re-compiled.
+     *
+     * @param array $cache Cache object
+     *
+     * @return boolean True if compile required.
+     */
+    private function cacheIsStale($cache)
+    {
+        if (!$cache) {
+            return true;
+        }
+
+        $updated = $cache['updated'];
+        foreach ($cache['files'] as $import => $mtime) {
+            $filemtime = filemtime($import);
+
+            if ($filemtime !== $mtime || $filemtime > $updated) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * Compile .scss file
+     *
+     * @param string $filename Input path (.scss)
+     *
+     * @see Server::compile()
+     * @return array meta data result of the compile
+     */
+    private function compile($filename)
+    {
+        $start = microtime(true);
+        $scss = new Compiler();
+
+        // set import path directory the input filename resides
+        // otherwise @import statements will not find the files
+        // and will treat the @import line as css import
+        $scss->setImportPaths(dirname($filename));
+
+        $css = $scss->compile(file_get_contents($filename), $filename);
+        $elapsed = round((microtime(true) - $start), 4);
+
+        $v = Version::VERSION;
+        $ts = date('r', $start);
+        $css = "/* compiled by scssphp $v on $ts (${elapsed}s) */\n\n" . $css;
+
+        $imports = $scss->getParsedFiles();
+
+        $updated = 0;
+        foreach ($imports as $mtime) {
+            $updated = max($updated, $mtime);
+        }
+
+        return array(
+            'elapsed' => $elapsed, // statistic, can be dropped
+            'updated' => $updated,
+            'content' => $css,
+            'files' => $imports,
+        );
+    }
+}
diff --git a/lib/Minify/ServeConfiguration.php b/lib/Minify/ServeConfiguration.php
index a2938a1..12d9d2f 100644
--- a/lib/Minify/ServeConfiguration.php
+++ b/lib/Minify/ServeConfiguration.php
@@ -9,7 +9,8 @@
  *
  * @package Minify
  */
-class Minify_ServeConfiguration {
+class Minify_ServeConfiguration
+{
 
     /**
      * @var Minify_SourceInterface[]
diff --git a/lib/Minify/Source.php b/lib/Minify/Source.php
index b44107e..1769d6e 100644
--- a/lib/Minify/Source.php
+++ b/lib/Minify/Source.php
@@ -13,7 +13,8 @@
  * @package Minify
  * @author Stephen Clay <steve@mrclay.org>
  */
-class Minify_Source implements Minify_SourceInterface {
+class Minify_Source implements Minify_SourceInterface
+{
 
     /**
      * @var int time of last modification
@@ -70,14 +71,15 @@ class Minify_Source implements Minify_SourceInterface {
         if (isset($spec['filepath'])) {
             $ext = pathinfo($spec['filepath'], PATHINFO_EXTENSION);
             switch ($ext) {
-                case 'js'   : $this->contentType = Minify::TYPE_JS;
-                              break;
-                case 'less' : // fallthrough
-                case 'css'  : $this->contentType = Minify::TYPE_CSS;
-                              break;
-                case 'htm'  : // fallthrough
-                case 'html' : $this->contentType = Minify::TYPE_HTML;
-                              break;
+                case 'js': $this->contentType = Minify::TYPE_JS;
+                    break;
+                case 'less': // fallthrough
+                case 'scss': // fallthrough
+                case 'css': $this->contentType = Minify::TYPE_CSS;
+                    break;
+                case 'htm': // fallthrough
+                case 'html': $this->contentType = Minify::TYPE_HTML;
+                    break;
             }
             $this->filepath = $spec['filepath'];
             $this->id = $spec['filepath'];
@@ -96,9 +98,7 @@ class Minify_Source implements Minify_SourceInterface {
             } else {
                 $this->getContentFunc = $spec['getContentFunc'];
             }
-            $this->lastModified = isset($spec['lastModified'])
-                ? $spec['lastModified']
-                : time();
+            $this->lastModified = isset($spec['lastModified']) ? $spec['lastModified'] : time();
         }
         if (isset($spec['contentType'])) {
             $this->contentType = $spec['contentType'];
@@ -203,11 +203,12 @@ class Minify_Source implements Minify_SourceInterface {
     /**
      * {@inheritdoc}
      */
-    public function setupUriRewrites() {
+    public function setupUriRewrites()
+    {
         if ($this->filepath
             && !isset($this->minifyOptions['currentDir'])
-            && !isset($this->minifyOptions['prependRelativePath'])
-        ) {
+            && !isset($this->minifyOptions['prependRelativePath'])) {
+
             $this->minifyOptions['currentDir'] = dirname($this->filepath);
         }
     }
diff --git a/lib/Minify/Source/Factory.php b/lib/Minify/Source/Factory.php
index 7033179..f36d1b2 100644
--- a/lib/Minify/Source/Factory.php
+++ b/lib/Minify/Source/Factory.php
@@ -1,6 +1,7 @@
 <?php
 
-class Minify_Source_Factory {
+class Minify_Source_Factory
+{
 
     /**
      * @var array
@@ -67,9 +68,13 @@ class Minify_Source_Factory {
             throw new InvalidArgumentException("fileChecker option is not callable");
         }
 
-	    $this->setHandler('~\.less$~i', function ($spec) use ($cache) {
-		    return new Minify_LessCssSource($spec, $cache);
-	    });
+        $this->setHandler('~\.less$~i', function ($spec) use ($cache) {
+            return new Minify_LessCssSource($spec, $cache);
+        });
+
+        $this->setHandler('~\.scss~i', function ($spec) use ($cache) {
+            return new Minify_ScssCssSource($spec, $cache);
+        });
 
         $this->setHandler('~\.(js|css)$~i', function ($spec) {
             return new Minify_Source($spec);
diff --git a/lib/Minify/Source/FactoryException.php b/lib/Minify/Source/FactoryException.php
index 0d0ba0e..54567f6 100644
--- a/lib/Minify/Source/FactoryException.php
+++ b/lib/Minify/Source/FactoryException.php
@@ -1,3 +1,5 @@
 <?php
 
-class Minify_Source_FactoryException extends Exception {}
+class Minify_Source_FactoryException extends Exception
+{
+}
diff --git a/lib/Minify/SourceInterface.php b/lib/Minify/SourceInterface.php
index 797d08c..26afc5f 100644
--- a/lib/Minify/SourceInterface.php
+++ b/lib/Minify/SourceInterface.php
@@ -12,7 +12,8 @@
  *
  * @package Minify
  */
-interface Minify_SourceInterface {
+interface Minify_SourceInterface
+{
 
     /**
      * Get the minifier
diff --git a/lib/Minify/SourceSet.php b/lib/Minify/SourceSet.php
index 970ae08..3d1af7d 100644
--- a/lib/Minify/SourceSet.php
+++ b/lib/Minify/SourceSet.php
@@ -7,7 +7,8 @@
 /**
  * @package Minify
  */
-class Minify_SourceSet {
+class Minify_SourceSet
+{
 
     /**
      * Get unique string for a set of sources
diff --git a/lib/Minify/YUICompressor.php b/lib/Minify/YUICompressor.php
index 17d5e20..4c3c53b 100644
--- a/lib/Minify/YUICompressor.php
+++ b/lib/Minify/YUICompressor.php
@@ -29,7 +29,8 @@
  * @package Minify
  * @author Stephen Clay <steve@mrclay.org>
  */
-class Minify_YUICompressor {
+class Minify_YUICompressor
+{
 
     /**
      * Filepath of the YUI Compressor jar file. This must be set before
@@ -92,6 +93,7 @@ class Minify_YUICompressor {
         if (! ($tmpFile = tempnam(self::$tempDir, 'yuic_'))) {
             throw new Exception('Minify_YUICompressor : could not create temp file in "'.self::$tempDir.'".');
         }
+
         file_put_contents($tmpFile, $content);
         exec(self::_getCmd($options, $type, $tmpFile), $output, $result_code);
         unlink($tmpFile);
@@ -104,23 +106,20 @@ class Minify_YUICompressor {
 
     private static function _getCmd($userOptions, $type, $tmpFile)
     {
-        $o = array_merge(
-            array(
-                'charset' => ''
-                ,'line-break' => 5000
-                ,'type' => $type
-                ,'nomunge' => false
-                ,'preserve-semi' => false
-                ,'disable-optimizations' => false
-	            ,'stack-size' => ''
-            )
-            ,$userOptions
+        $defaults = array(
+            'charset' => '',
+            'line-break' => 5000,
+            'type' => $type,
+            'nomunge' => false,
+            'preserve-semi' => false,
+            'disable-optimizations' => false,
+            'stack-size' => '',
         );
+        $o = array_merge($defaults, $userOptions);
+
         $cmd = self::$javaExecutable
-	         . (!empty($o['stack-size'])
-	            ? ' -Xss' . $o['stack-size']
-	            : '')
-	         . ' -jar ' . escapeshellarg(self::$jarFile)
+             . (!empty($o['stack-size']) ? ' -Xss' . $o['stack-size'] : '')
+             . ' -jar ' . escapeshellarg(self::$jarFile)
              . " --type {$type}"
              . (preg_match('/^[\\da-zA-Z0-9\\-]+$/', $o['charset'])
                 ? " --charset {$o['charset']}"
diff --git a/lib/MrClay/Cli.php b/lib/MrClay/Cli.php
index f382c82..e9ef3b3 100644
--- a/lib/MrClay/Cli.php
+++ b/lib/MrClay/Cli.php
@@ -18,7 +18,8 @@ use InvalidArgumentException;
  * @author Steve Clay <steve@mrclay.org>
  * @license http://www.opensource.org/licenses/mit-license.php  MIT License
  */
-class Cli {
+class Cli
+{
 
     /**
      * @var array validation errors
diff --git a/lib/MrClay/Cli/Arg.php b/lib/MrClay/Cli/Arg.php
index 9c8b0e3..b7a46e9 100644
--- a/lib/MrClay/Cli/Arg.php
+++ b/lib/MrClay/Cli/Arg.php
@@ -43,7 +43,8 @@ use BadMethodCallException;
  * @author Steve Clay <steve@mrclay.org>
  * @license http://www.opensource.org/licenses/mit-license.php  MIT License
  */
-class Arg {
+class Arg
+{
     /**
      * @return array
      */
diff --git a/min_extras/tools/minifyTextarea.php b/min_extras/tools/minifyTextarea.php
index fbdfcef..a5b5926 100644
--- a/min_extras/tools/minifyTextarea.php
+++ b/min_extras/tools/minifyTextarea.php
@@ -55,7 +55,7 @@ if ($env->post('method') === 'Minify and serve') {
 }
 
 $tpl = array();
-$tpl['classes'] = array('Minify_HTML', 'JSMin\\JSMin', 'Minify_CSS');
+$tpl['classes'] = array('Minify_HTML', 'JSMin\\JSMin', 'Minify_CSS', 'Minify_Lines');
 
 if (in_array($env->post('method'), $tpl['classes'])) {
 
diff --git a/server-info.php b/server-info.php
index 20b1312..c829f9b 100644
--- a/server-info.php
+++ b/server-info.php
@@ -5,7 +5,7 @@
  *
  * Change to true to expose this info.
  */
-$enabled = true;
+$enabled = false;
 
 ///////////////////////
 
diff --git a/tests/LessSourceTest.php b/tests/LessSourceTest.php
index f61045c..a2b5158 100644
--- a/tests/LessSourceTest.php
+++ b/tests/LessSourceTest.php
@@ -24,9 +24,7 @@ class LessSourceTest extends TestCase
         touch($includedLess);
 
         $mtime1 = filemtime($mainLess);
-        var_dump($mtime1);
         $mtime2 = filemtime($includedLess);
-        var_dump($mtime2);
 
         $max = max($mtime1, $mtime2);
 
diff --git a/tests/MinifyClosureCompilerTest.php b/tests/MinifyClosureCompilerTest.php
index ea93eea..84dc1e3 100644
--- a/tests/MinifyClosureCompilerTest.php
+++ b/tests/MinifyClosureCompilerTest.php
@@ -63,7 +63,7 @@ class MinifyClosureCompilerTest extends TestCase
         $src = "function unused() {};";
         $minExpected = '';
         $options = array(
-            Minify_ClosureCompiler::OPTION_COMPILATION_LEVEL => 'ADVANCED_OPTIMIZATIONS'
+            'compilation_level' => 'ADVANCED_OPTIMIZATIONS'
         );
         $minOutput = Minify_ClosureCompiler::minify($src, $options);
         $this->assertSame($minExpected, $minOutput, 'advanced optimizations');
@@ -80,12 +80,36 @@ class MinifyClosureCompilerTest extends TestCase
     {
         $this->assertHasJar();
 
-        $src = file_get_contents(self::$test_files . '/bug-513.js');
+        $src = $this->getDataFile('bug-513.js');
         $minExpected = 'var a=4;';
         $minOutput = Minify_ClosureCompiler::minify($src);
         $this->assertSame($minExpected, $minOutput, 'advanced optimizations');
     }
 
+    /**
+     * Test that language_in parameter has effect.
+     */
+    public function testLanguageOptions()
+    {
+        $this->assertHasJar();
+
+        $src = $this->getDataFile('js/jscomp.polyfill.js');
+        $exp = $this->getDataFile('js/jscomp.polyfill.min.js');
+        $options = array(
+            'language_in' => 'ECMASCRIPT3',
+        );
+
+        $res = Minify_ClosureCompiler::minify($src, $options);
+        $this->assertSame($exp, $res);
+
+        $options = array(
+            'language_in' => 'ECMASCRIPT6',
+        );
+        $exp = $this->getDataFile('js/jscomp.polyfilled.min.js');
+        $res = Minify_ClosureCompiler::minify($src, $options);
+        $this->assertSame($exp, $res);
+    }
+
     protected function assertHasJar()
     {
         $this->assertNotEmpty(Minify_ClosureCompiler::$jarFile);
diff --git a/tests/MinifyLinesTest.php b/tests/MinifyLinesTest.php
index 6e93434..87f27c5 100644
--- a/tests/MinifyLinesTest.php
+++ b/tests/MinifyLinesTest.php
@@ -4,8 +4,6 @@ class MinifyLinesTest extends TestCase
 {
     public function test_lines()
     {
-        $exp = file_get_contents(self::$test_files . "/minify/lines_output.js");
-
         $env = new Minify_Env(array(
             'server' => array(
                 'DOCUMENT_ROOT' => dirname(__DIR__),
@@ -15,15 +13,27 @@ class MinifyLinesTest extends TestCase
         $controller = new Minify_Controller_Files($env, $sourceFactory);
         $minify = new Minify(new Minify_Cache_Null());
 
-        $ret = $minify->serve($controller, array(
-            'debug' => true
-            ,'quiet' => true
-            ,'encodeOutput' => false
-            ,'files' => array(
-                self::$test_files . "/js/before.js"
-            )
-        ));
+        $files = glob(self::$test_files . "/lines/*.in.js");
 
-        $this->assertEquals($exp, $ret['content']);
+        // uncomment to debug one
+        //$files = array(self::$test_files . "/lines/basic.in.js");
+
+        foreach ($files as $file) {
+            $ret = $minify->serve($controller, array(
+                'debug' => true,
+                'quiet' => true,
+                'encodeOutput' => false,
+                'files' => array($file),
+            ));
+
+            $outFile = str_replace('.in.js', '.out.js', $file);
+
+            $exp = file_get_contents($outFile);
+
+            // uncomment to set up expected output
+            //file_put_contents($outFile, $ret['content']);
+
+            $this->assertEquals($exp, $ret['content'], "Did not match: " . basename($outFile));
+        }
     }
 }
diff --git a/tests/MinifyNailgunClosureCompilerTest.php b/tests/MinifyNailgunClosureCompilerTest.php
index caeeb70..572ed5f 100644
--- a/tests/MinifyNailgunClosureCompilerTest.php
+++ b/tests/MinifyNailgunClosureCompilerTest.php
@@ -20,7 +20,7 @@ class MinifyNailgunClosureCompilerTest extends TestCase
     /**
      * Test minimisation with the minimum necessary settings
      */
-    public function test2()
+    public function test1()
     {
         $this->assertHasJar();
         $src = "
@@ -40,8 +40,10 @@ class MinifyNailgunClosureCompilerTest extends TestCase
     protected function assertHasJar()
     {
         $this->assertNotEmpty(Minify_ClosureCompiler::$jarFile);
+        $this->assertNotEmpty(Minify_NailgunClosureCompiler::$ngJarFile);
         try {
             $this->assertFileExists(Minify_ClosureCompiler::$jarFile, "Have closure compiler compiler.jar");
+            $this->assertFileExists(Minify_NailgunClosureCompiler::$ngJarFile, "Have nailgun.jar");
         } catch (Exception $e) {
             $this->markTestSkipped($e->getMessage());
         }
diff --git a/tests/ScssSourceTest.php b/tests/ScssSourceTest.php
new file mode 100644
index 0000000..a8123dd
--- /dev/null
+++ b/tests/ScssSourceTest.php
@@ -0,0 +1,42 @@
+<?php
+
+class ScssSourceTest extends TestCase
+{
+    public function setUp()
+    {
+        if (version_compare(PHP_VERSION, '5.4.0', '<')) {
+            $this->markTestSkipped('scssphp is not compatible with this PHP version.');
+        }
+
+        $this->realDocRoot = $_SERVER['DOCUMENT_ROOT'];
+        $_SERVER['DOCUMENT_ROOT'] = self::$document_root;
+    }
+
+    /**
+     * @link https://github.com/mrclay/minify/issues/500
+     */
+    public function testTimestamp()
+    {
+        $baseDir = self::$test_files;
+
+        $mainLess = "$baseDir/main.scss";
+        $includedLess = "$baseDir/_included.scss";
+
+        // touch timestamp with 1s difference
+        touch($mainLess);
+        sleep(1);
+        touch($includedLess);
+
+        $mtime1 = filemtime($mainLess);
+        $mtime2 = filemtime($includedLess);
+
+        $max = max($mtime1, $mtime2);
+
+        $options = array(
+            'groupsConfigFile' => "$baseDir/htmlHelper_groupsConfig.php",
+        );
+        $res = Minify_HTML_Helper::getUri('scss', $options);
+
+        $this->assertEquals("/min/g=scss&amp;{$max}", $res);
+    }
+}
\ No newline at end of file
diff --git a/tests/TestCase.php b/tests/TestCase.php
index a871461..f763412 100644
--- a/tests/TestCase.php
+++ b/tests/TestCase.php
@@ -47,4 +47,23 @@ class TestCase extends PHPUnit_Framework_TestCase
         $this->assertSame($data, $displayed, "$id display");
         $this->assertEquals($data, $cache->fetch($id), "$id fetch");
     }
+
+    /**
+     * Read data file, assert that it exists and is not empty.
+     * As a side effect calls trim() to fight against different Editors that insert or strip final newline.
+     *
+     * @param string $filename
+     * @return string
+     */
+    protected function getDataFile($filename)
+    {
+        $path = self::$test_files . '/' . $filename;
+        $this->assertFileExists($path);
+        $contents = file_get_contents($path);
+        $this->assertNotEmpty($contents);
+        $contents = trim($contents);
+        $this->assertNotEmpty($contents);
+
+        return $contents;
+    }
 }
\ No newline at end of file
diff --git a/tests/_test_files/_included.scss b/tests/_test_files/_included.scss
new file mode 100644
index 0000000..df8d371
--- /dev/null
+++ b/tests/_test_files/_included.scss
@@ -0,0 +1,8 @@
+/* lesstest2.scss */
+
+
+a.included {
+  color: $primary-color;
+  font-size: 13px;
+  text-decoration: none;
+}
diff --git a/tests/_test_files/css_uriRewriter/exp.css b/tests/_test_files/css_uriRewriter/exp.css
index 3296c26..5ce7667 100644
--- a/tests/_test_files/css_uriRewriter/exp.css
+++ b/tests/_test_files/css_uriRewriter/exp.css
@@ -8,6 +8,7 @@
 @import url("/css/foo.css"); /* abs, should not alter */
 @import url(/css2/foo.css); /* abs, should not alter */
 @import url(foo:bar); /* scheme, should not alter */
+@import url(); /* empty, should not alter */
 foo {clip-path:url(#c1)} /* inline clip path, should not alter */
 foo {clip-path:url(/_test_files/css_uriRewriter/foo.svg#c1)}
 foo {mask: url(#c1)} /* should not alter */
@@ -17,5 +18,6 @@ foo {background:url('http://foo.com/css/foo.css');} /* scheme, should not alter
 foo {background:url("//foo.com/css/foo.css");} /* protocol relative, should not alter */
 foo {background:url(foo:bar);} /* scheme, should not alter */
 foo {background:url("/_test_files/css_uriRewriter/foo bar.jpg");}
+foo {background:url("");} /* empty, should not alter */
 @import url('/_test_files/css_uriRewriter/foo bar.css');
 @import "/_test_files/css_uriRewriter/foo bar.css";
diff --git a/tests/_test_files/css_uriRewriter/exp_prepend.css b/tests/_test_files/css_uriRewriter/exp_prepend.css
index bc09c44..a56103d 100644
--- a/tests/_test_files/css_uriRewriter/exp_prepend.css
+++ b/tests/_test_files/css_uriRewriter/exp_prepend.css
@@ -8,6 +8,7 @@
 @import url("/css/foo.css"); /* abs, should not alter */
 @import url(/css2/foo.css); /* abs, should not alter */
 @import url(foo:bar); /* scheme, should not alter */
+@import url(); /* empty, should not alter */
 foo {clip-path:url(#c1)} /* inline clip path, should not alter */
 foo {clip-path:url(http://cnd.com/A/B/foo.svg#c1)}
 foo {mask: url(#c1)} /* should not alter */
@@ -17,5 +18,6 @@ foo {background:url('http://foo.com/css/foo.css');} /* scheme, should not alter
 foo {background:url("//foo.com/css/foo.css");} /* protocol relative, should not alter */
 foo {background:url(foo:bar);} /* scheme, should not alter */
 foo {background:url("http://cnd.com/A/B/foo bar.jpg");}
+foo {background:url("");} /* empty, should not alter */
 @import url('http://cnd.com/A/B/foo bar.css');
 @import "http://cnd.com/A/B/foo bar.css";
diff --git a/tests/_test_files/css_uriRewriter/exp_prepend2.css b/tests/_test_files/css_uriRewriter/exp_prepend2.css
index c8f7c61..f9398a5 100644
--- a/tests/_test_files/css_uriRewriter/exp_prepend2.css
+++ b/tests/_test_files/css_uriRewriter/exp_prepend2.css
@@ -8,6 +8,7 @@
 @import url("/css/foo.css"); /* abs, should not alter */
 @import url(/css2/foo.css); /* abs, should not alter */
 @import url(foo:bar); /* scheme, should not alter */
+@import url(); /* empty, should not alter */
 foo {clip-path:url(#c1)} /* inline clip path, should not alter */
 foo {clip-path:url(//cnd.com/A/B/foo.svg#c1)}
 foo {mask: url(#c1)} /* should not alter */
@@ -17,5 +18,6 @@ foo {background:url('http://foo.com/css/foo.css');} /* scheme, should not alter
 foo {background:url("//foo.com/css/foo.css");} /* protocol relative, should not alter */
 foo {background:url(foo:bar);} /* scheme, should not alter */
 foo {background:url("//cnd.com/A/B/foo bar.jpg");}
+foo {background:url("");} /* empty, should not alter */
 @import url('//cnd.com/A/B/foo bar.css');
 @import "//cnd.com/A/B/foo bar.css";
diff --git a/tests/_test_files/css_uriRewriter/in.css b/tests/_test_files/css_uriRewriter/in.css
index 0200450..e5c4858 100644
--- a/tests/_test_files/css_uriRewriter/in.css
+++ b/tests/_test_files/css_uriRewriter/in.css
@@ -8,6 +8,7 @@
 @import url("/css/foo.css"); /* abs, should not alter */
 @import url(/css2/foo.css); /* abs, should not alter */
 @import url(foo:bar); /* scheme, should not alter */
+@import url(); /* empty, should not alter */
 foo {clip-path:url(#c1)} /* inline clip path, should not alter */
 foo {clip-path:url(foo.svg#c1)}
 foo {mask: url( #c1 )} /* should not alter */
@@ -17,5 +18,6 @@ foo {background:url('http://foo.com/css/foo.css');} /* scheme, should not alter
 foo {background:url("//foo.com/css/foo.css");} /* protocol relative, should not alter */
 foo {background:url(foo:bar);} /* scheme, should not alter */
 foo {background:url("foo bar.jpg");}
+foo {background:url("");} /* empty, should not alter */
 @import url('foo bar.css');
 @import "foo bar.css";
diff --git a/tests/_test_files/htmlHelper_groupsConfig.php b/tests/_test_files/htmlHelper_groupsConfig.php
index cf67275..cbf8a9d 100644
--- a/tests/_test_files/htmlHelper_groupsConfig.php
+++ b/tests/_test_files/htmlHelper_groupsConfig.php
@@ -9,4 +9,8 @@ return array(
     'less' => array(
         '//_test_files/main.less',
     ),
+
+    'scss' => array(
+        '//_test_files/main.scss',
+    ),
 );
diff --git a/tests/_test_files/js/jscomp.polyfill.js b/tests/_test_files/js/jscomp.polyfill.js
new file mode 100644
index 0000000..f1da735
--- /dev/null
+++ b/tests/_test_files/js/jscomp.polyfill.js
@@ -0,0 +1,7 @@
+(function() {
+    /**
+     * @type {string}
+     */
+    var $array = jQuery.find('#div');
+    print($array.find('a'));
+})();
\ No newline at end of file
diff --git a/tests/_test_files/js/jscomp.polyfill.min.js b/tests/_test_files/js/jscomp.polyfill.min.js
new file mode 100644
index 0000000..6146151
--- /dev/null
+++ b/tests/_test_files/js/jscomp.polyfill.min.js
@@ -0,0 +1 @@
+(function(){var a=jQuery.find("#div");print(a.find("a"))})();
\ No newline at end of file
diff --git a/tests/_test_files/js/jscomp.polyfilled.min.js b/tests/_test_files/js/jscomp.polyfilled.min.js
new file mode 100644
index 0000000..faa4d04
--- /dev/null
+++ b/tests/_test_files/js/jscomp.polyfilled.min.js
@@ -0,0 +1,3 @@
+var $jscomp={scope:{},findInternal:function(a,c,b){a instanceof String&&(a=String(a));for(var d=a.length,e=0;e<d;e++){var f=a[e];if(c.call(b,f,e,a))return{i:e,v:f}}return{i:-1,v:void 0}}};$jscomp.defineProperty="function"==typeof Object.defineProperties?Object.defineProperty:function(a,c,b){if(b.get||b.set)throw new TypeError("ES3 does not support getters and setters.");a!=Array.prototype&&a!=Object.prototype&&(a[c]=b.value)};
+$jscomp.getGlobal=function(a){return"undefined"!=typeof window&&window===a?a:"undefined"!=typeof global&&null!=global?global:a};$jscomp.global=$jscomp.getGlobal(this);$jscomp.polyfill=function(a,c,b,d){if(c){b=$jscomp.global;a=a.split(".");for(d=0;d<a.length-1;d++){var e=a[d];e in b||(b[e]={});b=b[e]}a=a[a.length-1];d=b[a];c=c(d);c!=d&&null!=c&&$jscomp.defineProperty(b,a,{configurable:!0,writable:!0,value:c})}};
+$jscomp.polyfill("Array.prototype.find",function(a){return a?a:function(a,b){return $jscomp.findInternal(this,a,b).v}},"es6-impl","es3");(function(){var a=jQuery.find("#div");print(a.find("a"))})();
\ No newline at end of file
diff --git a/tests/_test_files/lines/basic.in.js b/tests/_test_files/lines/basic.in.js
new file mode 100644
index 0000000..4158b3c
--- /dev/null
+++ b/tests/_test_files/lines/basic.in.js
@@ -0,0 +1,66 @@
+/*! is.js
+
+ (c) 2001 Douglas Crockford
+ 2001 June 3
+*/
+
+// is
+
+// The -is- object is used to identify the browser.  Every browser edition
+// identifies itself, but there is no standard way of doing it, and some of
+// the identification is deceptive. This is because the authors of web
+// browsers are liars. For example, Microsoft's IE browsers claim to be
+// Mozilla 4. Netscape 6 claims to be version 5.
+
+var is = {
+    ie:      navigator.appName == 'Microsoft Internet Explorer',
+    java:    navigator.javaEnabled(),
+    ns:      navigator.appName == 'Netscape',
+    ua:      navigator.userAgent.toLowerCase(),
+    version: parseFloat(navigator.appVersion.substr(21)) ||
+             parseFloat(navigator.appVersion),
+    win:     navigator.platform == 'Win32'
+}
+/*!*
+ * preserve this comment, too
+ */
+is.mac = is.ua.indexOf('mac') >= 0;
+if (is.ua.indexOf('opera') >= 0) {
+    is.ie = is.ns = false;
+    is.opera = true;
+}
+if (is.ua.indexOf('gecko') >= 0) {
+    is.ie = is.ns = false;
+    is.gecko = true;
+}
+
+/*@cc_on
+   /*@if (@_win32)
+    if (is.ie && is.win)
+        document.write("PASS: IE/win honored conditional comment.<br>");
+   @else @*/
+    if (is.ie && is.win)
+        document.write("FAIL: IE/win did not honor multi-line conditional comment.<br>");
+    else
+        document.write("PASS: Non-IE/win browser ignores multi-line conditional comment.<br>");
+   /*@end
+@*/
+
+var recognizesCondComm = true;
+//@cc_on/*
+recognizesCondComm = false;
+//@cc_on*/
+
+if ((is.ie && is.win) == recognizesCondComm)
+    document.write("PASS: IE/win honored single-line conditional comment.<br>");
+else
+    document.write("FAIL: Non-IE/win browser did not ignore single-line conditional comment.<br>");
+
+// hello
+//@cc_on/*
+// world
+//@cc_on*/
+//@cc_on/*
+'hello';
+/*!* preserved */
+/*!* preserved */
\ No newline at end of file
diff --git a/tests/_test_files/minify/lines_output.js b/tests/_test_files/lines/basic.out.js
similarity index 93%
rename from tests/_test_files/minify/lines_output.js
rename to tests/_test_files/lines/basic.out.js
index 5565867..ad0d845 100644
--- a/tests/_test_files/minify/lines_output.js
+++ b/tests/_test_files/lines/basic.out.js
@@ -1,20 +1,20 @@
 
-/* before.js */
+/* basic.in.js */
 
 /* 1  */ /*! is.js
-/* 2  *| 
+/* 2  *|
 /* 3  *|  (c) 2001 Douglas Crockford
 /* 4  *|  2001 June 3
 /* 5  *| */
-/* 6  */ 
+/* 6  */
 /* 7  */ // is
-/* 8  */ 
+/* 8  */
 /* 9  */ // The -is- object is used to identify the browser.  Every browser edition
 /* 10 */ // identifies itself, but there is no standard way of doing it, and some of
 /* 11 */ // the identification is deceptive. This is because the authors of web
 /* 12 */ // browsers are liars. For example, Microsoft's IE browsers claim to be
 /* 13 */ // Mozilla 4. Netscape 6 claims to be version 5.
-/* 14 */ 
+/* 14 */
 /* 15 */ var is = {
 /* 16 */     ie:      navigator.appName == 'Microsoft Internet Explorer',
 /* 17 */     java:    navigator.javaEnabled(),
@@ -36,7 +36,7 @@
 /* 33 */     is.ie = is.ns = false;
 /* 34 */     is.gecko = true;
 /* 35 */ }
-/* 36 */ 
+/* 36 */
 /* 37 */ /*@cc_on
 /* 38 *|    /*@if (@_win32)
 /* 39 *|     if (is.ie && is.win)
@@ -44,24 +44,24 @@
 /* 41 *|    @else @*/
 /* 42 */     if (is.ie && is.win)
 /* 43 */         document.write("FAIL: IE/win did not honor multi-line conditional comment.<br>");
-/* 44 */     else 
+/* 44 */     else
 /* 45 */         document.write("PASS: Non-IE/win browser ignores multi-line conditional comment.<br>");
 /* 46 */    /*@end
 /* 47 *| @*/
-/* 48 */ 
+/* 48 */
 /* 49 */ var recognizesCondComm = true;
 /* 50 */ //@cc_on/*
 
-/* before.js */
+/* basic.in.js */
 
 /* 51 */ recognizesCondComm = false;
 /* 52 */ //@cc_on*/
-/* 53 */ 
+/* 53 */
 /* 54 */ if ((is.ie && is.win) == recognizesCondComm)
 /* 55 */     document.write("PASS: IE/win honored single-line conditional comment.<br>");
-/* 56 */ else 
+/* 56 */ else
 /* 57 */     document.write("FAIL: Non-IE/win browser did not ignore single-line conditional comment.<br>");
-/* 58 */ 
+/* 58 */
 /* 59 */ // hello
 /* 60 */ //@cc_on/*
 /* 61 */ // world
diff --git a/tests/_test_files/minify/lines_bugs.js b/tests/_test_files/lines/misc.in.js
similarity index 53%
rename from tests/_test_files/minify/lines_bugs.js
rename to tests/_test_files/lines/misc.in.js
index cf56b58..6ac5d6d 100644
--- a/tests/_test_files/minify/lines_bugs.js
+++ b/tests/_test_files/lines/misc.in.js
@@ -1,10 +1,14 @@
-// sections from Prototype 1.6.1
-var xpath = ".//*[local-name()='ul' or local-name()='UL']" +
-          "//*[local-name()='li' or local-name()='LI']";
-this.matcher = ['.//*'];
-xpath = {
-    descendant:   "//*",
-    child:        "/*",
-    f: 0
-};
-document._getElementsByXPath('.//*' + cond, element);
\ No newline at end of file
+// sections from Prototype 1.6.1
+var xpath = ".//*[local-name()='ul' or local-name()='UL']" +
+          "//*[local-name()='li' or local-name()='LI']";
+this.matcher = ['.//*'];
+xpath = {
+    descendant:   "//*",
+    child:        "/*",
+    f: 0
+};
+document._getElementsByXPath('.//*' + cond, element);
+
+// from angular 1.4.8
+var URL_REGEXP = /^[a-z][a-z\d.+-]*:\/*(?:[^:@]+(?::[^@]+)?@)?(?:[^\s:/?#]+|\[[a-f\d:]+\])(?::\d+)?(?:\/[^?#]*)?(?:\?[^#]*)?(?:#.*)?$/i;
+
diff --git a/tests/_test_files/lines/misc.out.js b/tests/_test_files/lines/misc.out.js
new file mode 100644
index 0000000..b888683
--- /dev/null
+++ b/tests/_test_files/lines/misc.out.js
@@ -0,0 +1,18 @@
+
+/* misc.in.js */
+
+/* 1  */ // sections from Prototype 1.6.1
+/* 2  */ var xpath = ".//*[local-name()='ul' or local-name()='UL']" +
+/* 3  */           "//*[local-name()='li' or local-name()='LI']";
+/* 4  */ this.matcher = ['.//*'];
+/* 5  */ xpath = {
+/* 6  */     descendant:   "//*",
+/* 7  */     child:        "/*",
+/* 8  */     f: 0
+/* 9  */ };
+/* 10 */ document._getElementsByXPath('.//*' + cond, element);
+/* 11 */
+/* 12 */ // from angular 1.4.8
+/* 13 */ var URL_REGEXP = /^[a-z][a-z\d.+-]*:\/*(?:[^:@]+(?::[^@]+)?@)?(?:[^\s:/?#]+|\[[a-f\d:]+\])(?::\d+)?(?:\/[^?#]*)?(?:\?[^#]*)?(?:#.*)?$/i;
+/* 14 */
+/* 15 */
diff --git a/tests/_test_files/lines/url.in.js b/tests/_test_files/lines/url.in.js
new file mode 100644
index 0000000..eb5d779
--- /dev/null
+++ b/tests/_test_files/lines/url.in.js
@@ -0,0 +1,13 @@
+foo; /* http://example.com */
+bar;
+
+foo; /*
+    http://example.com */
+bar;
+
+foo = "http://example.com"; /* hello */
+bar;
+
+foo = "http://example.com"; /*
+hello */
+bar;
diff --git a/tests/_test_files/lines/url.out.js b/tests/_test_files/lines/url.out.js
new file mode 100644
index 0000000..dc43a7c
--- /dev/null
+++ b/tests/_test_files/lines/url.out.js
@@ -0,0 +1,17 @@
+
+/* url.in.js */
+
+/* 1  */ foo; /* http://example.com */
+/* 2  */ bar;
+/* 3  */
+/* 4  */ foo; /*
+/* 5  *|     http://example.com */
+/* 6  */ bar;
+/* 7  */
+/* 8  */ foo = "http://example.com"; /* hello */
+/* 9  */ bar;
+/* 10 */
+/* 11 */ foo = "http://example.com"; /*
+/* 12 *| hello */
+/* 13 */ bar;
+/* 14 */
diff --git a/tests/_test_files/main.scss b/tests/_test_files/main.scss
new file mode 100644
index 0000000..80bc0ea
--- /dev/null
+++ b/tests/_test_files/main.scss
@@ -0,0 +1,29 @@
+/*! preserving comment */
+
+// Variable
+$primary-color: hotpink;
+
+// Mixin
+@mixin border-radius($radius) {
+  -webkit-border-radius: $radius;
+  -moz-border-radius: $radius;
+  border-radius: $radius;
+}
+
+.my-element {
+  color: $primary-color;
+  width: 100%;
+  overflow: hidden;
+}
+
+.my-other-element {
+  @include border-radius(6px);
+}
+
+/* import include -> */
+@import "_included";
+/* <- import included */
+
+/*
+ a normal comment.
+*/
\ No newline at end of file