albertlast / SMF2.1

Sources/Subs.php

Indentation -2 removed lines

@@ -5370,7 +5370,6 @@ 
 
 /**
  * Tries different modes to make file/dirs writable. Wrapper function for chmod()
-
  * @param string $file The file/dir full path.
  * @param int $value Not needed, added for legacy reasons.
  * @return boolean  true if the file/dir is already writable or the function was able to make it writable, false if the function couldn't make the file/dir writable.
@@ -5410,7 +5409,6 @@ 
 
 /**
  * Wrapper function for json_decode() with error handling.
-
  * @param string $json The string to decode.
  * @param bool $returnAsArray To return the decoded string as an array or an object, SMF only uses Arrays but to keep on compatibility with json_decode its set to false as default.
  * @param bool $logIt To specify if the error will be logged if theres any.

Sources/Class-BrowserDetect.php

Indentation +33 added lines, -33 removed lines

@@ -101,9 +101,9 @@ 
 	}
 
 	/**
-	* Determine if the browser is Opera or not
-	* @return boolean Whether or not this is Opera
-	*/
+	 * Determine if the browser is Opera or not
+	 * @return boolean Whether or not this is Opera
+	 */
 	function isOpera()
 	{
 		if (!isset($this->_browsers['is_opera']))
@@ -112,9 +112,9 @@ 
 	}
 
 	/**
-	* Determine if the browser is IE or not
-	* @return boolean true Whether or not the browser is IE
-	*/
+	 * Determine if the browser is IE or not
+	 * @return boolean true Whether or not the browser is IE
+	 */
 	function isIe()
 	{
 		// I'm IE, Yes I'm the real IE; All you other IEs are just imitating.
@@ -124,9 +124,9 @@ 
 	}
 
 	/**
-	* Determine if the browser is IE11 or not
-	* @return boolean Whether or not the browser is IE11
-	*/
+	 * Determine if the browser is IE11 or not
+	 * @return boolean Whether or not the browser is IE11
+	 */
 	function isIe11()
 	{
 		// IE11 is a bit different than earlier versions
@@ -137,9 +137,9 @@ 
  	}
 
 	/**
-	* Determine if the browser is Edge or not
-	* @return boolean Whether or not the browser is Edge
-	*/
+	 * Determine if the browser is Edge or not
+	 * @return boolean Whether or not the browser is Edge
+	 */
 	function isEdge()
 	{
 		if (!isset($this->_browsers['is_edge']))
@@ -148,9 +148,9 @@ 
 	}
 
 	/**
-	* Determine if the browser is a Webkit based one or not
-	* @return boolean Whether or not this is a Webkit-based browser
-	*/
+	 * Determine if the browser is a Webkit based one or not
+	 * @return boolean Whether or not this is a Webkit-based browser
+	 */
 	function isWebkit()
 	{
 		if (!isset($this->_browsers['is_webkit']))
@@ -159,9 +159,9 @@ 
 	}
 
 	/**
-	* Determine if the browser is Firefox or one of its variants
-	* @return boolean Whether or not this is Firefox (or one of its variants)
-	*/
+	 * Determine if the browser is Firefox or one of its variants
+	 * @return boolean Whether or not this is Firefox (or one of its variants)
+	 */
 	function isFirefox()
 	{
 		if (!isset($this->_browsers['is_firefox']))
@@ -170,9 +170,9 @@ 
 	}
 
 	/**
-	* Determine if the browser is WebTv or not
-	* @return boolean Whether or not this is WebTV
-	*/
+	 * Determine if the browser is WebTv or not
+	 * @return boolean Whether or not this is WebTV
+	 */
 	function isWebTv()
 	{
 		if (!isset($this->_browsers['is_web_tv']))
@@ -181,9 +181,9 @@ 
 	}
 
 	/**
-	* Determine if the browser is konqueror or not
-	* @return boolean Whether or not this is Konqueror
-	*/
+	 * Determine if the browser is konqueror or not
+	 * @return boolean Whether or not this is Konqueror
+	 */
 	function isKonqueror()
 	{
 		if (!isset($this->_browsers['is_konqueror']))
@@ -192,9 +192,9 @@ 
 	}
 
 	/**
-	* Determine if the browser is Gecko or not
-	* @return boolean Whether or not this is a Gecko-based browser
-	*/
+	 * Determine if the browser is Gecko or not
+	 * @return boolean Whether or not this is a Gecko-based browser
+	 */
 	function isGecko()
 	{
 		if (!isset($this->_browsers['is_gecko']))
@@ -203,9 +203,9 @@ 
 	}
 
 	/**
-	* Determine if the browser is Opera Mini or not
-	* @return boolean Whether or not this is Opera Mini
-	*/
+	 * Determine if the browser is Opera Mini or not
+	 * @return boolean Whether or not this is Opera Mini
+	 */
 	function isOperaMini()
 	{
 		if (!isset($this->_browsers['is_opera_mini']))
@@ -216,9 +216,9 @@ 
 	}
 
 	/**
-	* Determine if the browser is Opera Mobile or not
-	* @return boolean Whether or not this is Opera Mobile
-	*/
+	 * Determine if the browser is Opera Mobile or not
+	 * @return boolean Whether or not this is Opera Mobile
+	 */
 	function isOperaMobi()
 	{
 		if (!isset($this->_browsers['is_opera_mobi']))

Sources/Class-CurlFetchWeb.php

Indentation +70 added lines, -70 removed lines

@@ -59,13 +59,13 @@ 
 	);
 
 	/**
-	* Start the curl object
-	* - allow for user override values
-	*
-	* @param array $options An array of cURL options
-	* @param int $max_redirect Maximum number of redirects
-	* @return void
-	*/
+	 * Start the curl object
+	 * - allow for user override values
+	 *
+	 * @param array $options An array of cURL options
+	 * @param int $max_redirect Maximum number of redirects
+	 * @return void
+	 */
 	public function __construct($options = array(), $max_redirect = 3)
 	{
 		// Initialize class variables
@@ -74,16 +74,16 @@ 
 	}
 
 	/**
-	* Main calling function,
-	*  - will request the page data from a given $url
-	*  - optionally will post data to the page form if post data is supplied
-	*  - passed arrays will be converted to a post string joined with &'s
-	*  - calls set_options to set the curl opts array values based on the defaults and user input
-	*
-	* @param string $url the site we are going to fetch
-	* @param array $post_data any post data as form name => value
-	* @return object An instance of the curl_fetch_web_data class
-	*/
+	 * Main calling function,
+	 *  - will request the page data from a given $url
+	 *  - optionally will post data to the page form if post data is supplied
+	 *  - passed arrays will be converted to a post string joined with &'s
+	 *  - calls set_options to set the curl opts array values based on the defaults and user input
+	 *
+	 * @param string $url the site we are going to fetch
+	 * @param array $post_data any post data as form name => value
+	 * @return object An instance of the curl_fetch_web_data class
+	 */
 	public function get_url_data($url, $post_data = array())
 	{
 		// POSTing some data perhaps?
@@ -100,14 +100,14 @@ 
 	}
 
 	/**
-	* Makes the actual cURL call
-	*  - stores responses (url, code, error, headers, body) in the response array
-	*  - detects 301, 302, 307 codes and will redirect to the given response header location
-	*
-	* @param string $url The site to fetch
-	* @param bool $redirect Whether or not this was a redirect request
-	* @return void|bool Sets various properties of the class or returns false if the URL isn't specified
-	*/
+	 * Makes the actual cURL call
+	 *  - stores responses (url, code, error, headers, body) in the response array
+	 *  - detects 301, 302, 307 codes and will redirect to the given response header location
+	 *
+	 * @param string $url The site to fetch
+	 * @param bool $redirect Whether or not this was a redirect request
+	 * @return void|bool Sets various properties of the class or returns false if the URL isn't specified
+	 */
 	private function curl_request($url, $redirect = false)
 	{
 		// we do have a url I hope
@@ -159,12 +159,12 @@ 
 	}
 
 	/**
-	* Used if being redirected to ensure we have a fully qualified address
-	*
-	* @param string $last_url The URL we went to
-	* @param string $new_url The URL we were redirected to
-	* @return string The new URL that was in the HTTP header
-	*/
+	 * Used if being redirected to ensure we have a fully qualified address
+	 *
+	 * @param string $last_url The URL we went to
+	 * @param string $new_url The URL we were redirected to
+	 * @return string The new URL that was in the HTTP header
+	 */
 	private function get_redirect_url($last_url = '', $new_url = '')
 	{
 		// Get the elements for these urls
@@ -182,13 +182,13 @@ 
 	}
 
 	/**
-	* Used to return the results to the calling program
-	*  - called as ->result() will return the full final array
-	*  - called as ->result('body') to just return the page source of the result
-	*
-	* @param string $area Used to return an area such as body, header, error
-	* @return string The response
-	*/
+	 * Used to return the results to the calling program
+	 *  - called as ->result() will return the full final array
+	 *  - called as ->result('body') to just return the page source of the result
+	 *
+	 * @param string $area Used to return an area such as body, header, error
+	 * @return string The response
+	 */
 	public function result($area = '')
 	{
 		$max_result = count($this->response) - 1;
@@ -201,13 +201,13 @@ 
 	}
 
 	/**
-	* Will return all results from all loops (redirects)
-	*  - Can be called as ->result_raw(x) where x is a specific loop results.
-	*  - Call as ->result_raw() for everything.
-	*
-	* @param string $response_number Which response we want to get
-	* @return array|string The entire response array or just the specified response
-	*/
+	 * Will return all results from all loops (redirects)
+	 *  - Can be called as ->result_raw(x) where x is a specific loop results.
+	 *  - Call as ->result_raw() for everything.
+	 *
+	 * @param string $response_number Which response we want to get
+	 * @return array|string The entire response array or just the specified response
+	 */
 	public function result_raw($response_number = '')
 	{
 		if (!is_numeric($response_number))
@@ -220,13 +220,13 @@ 
 	}
 
 	/**
-	* Takes supplied POST data and url encodes it
-	*  - forms the date (for post) in to a string var=xyz&var2=abc&var3=123
-	*  - drops vars with @ since we don't support sending files (uploading)
-	*
-	* @param array|string $post_data The raw POST data
-	* @return string A string of post data
-	*/
+	 * Takes supplied POST data and url encodes it
+	 *  - forms the date (for post) in to a string var=xyz&var2=abc&var3=123
+	 *  - drops vars with @ since we don't support sending files (uploading)
+	 *
+	 * @param array|string $post_data The raw POST data
+	 * @return string A string of post data
+	 */
 	private function build_post_data($post_data)
 	{
 		if (is_array($post_data))
@@ -245,11 +245,11 @@ 
 	}
 
 	/**
-	* Sets the final cURL options for the current call
-	*  - overwrites our default values with user supplied ones or appends new user ones to what we have
-	*  - sets the callback function now that $this is existing
-	* @return void
-	*/
+	 * Sets the final cURL options for the current call
+	 *  - overwrites our default values with user supplied ones or appends new user ones to what we have
+	 *  - sets the callback function now that $this is existing
+	 * @return void
+	 */
 	private function set_options()
 	{
 		// Callback to parse the returned headers, if any
@@ -274,12 +274,12 @@ 
 	}
 
 	/**
-	* Called to initiate a redirect from a 301, 302 or 307 header
-	*  - resets the cURL options for the loop, sets the referrer flag
-	*
-	* @param string $target_url The URL we want to redirect to
-	* @param string $referer_url The URL that we're redirecting from
-	*/
+	 * Called to initiate a redirect from a 301, 302 or 307 header
+	 *  - resets the cURL options for the loop, sets the referrer flag
+	 *
+	 * @param string $target_url The URL we want to redirect to
+	 * @param string $referer_url The URL that we're redirecting from
+	 */
 	private function redirect($target_url, $referer_url)
 	{
 		// no no I last saw that over there ... really, 301, 302, 307
@@ -289,13 +289,13 @@ 
 	}
 
 	/**
-	* Callback function to parse returned headers
-	*  - lowercases everything to make it consistent
-	*
-	* @param type $cr Not sure what this is used for?
-	* @param string $header The header
-	* @return int The length of the header
-	*/
+	 * Callback function to parse returned headers
+	 *  - lowercases everything to make it consistent
+	 *
+	 * @param type $cr Not sure what this is used for?
+	 * @param string $header The header
+	 * @return int The length of the header
+	 */
 	private function header_callback($cr, $header)
 	{
 		$_header = trim($header);

Sources/Xml.php

Indentation +7 added lines, -7 removed lines

@@ -272,13 +272,13 @@
 				$context['post_error']['messages'][] = $txt['mc_warning_template_error_no_body'];
 			// Add in few replacements.
 			/**
-			* These are the defaults:
-			* - {MEMBER} - Member Name. => current user for review
-			* - {MESSAGE} - Link to Offending Post. (If Applicable) => not applicable here, so not replaced
-			* - {FORUMNAME} - Forum Name.
-			* - {SCRIPTURL} - Web address of forum.
-			* - {REGARDS} - Standard email sign-off.
-			*/
+			 * These are the defaults:
+			 * - {MEMBER} - Member Name. => current user for review
+			 * - {MESSAGE} - Link to Offending Post. (If Applicable) => not applicable here, so not replaced
+			 * - {FORUMNAME} - Forum Name.
+			 * - {SCRIPTURL} - Web address of forum.
+			 * - {REGARDS} - Standard email sign-off.
+			 */
 			$find = array(
 				'{MEMBER}',
 				'{FORUMNAME}',

Sources/Class-Package.php

Indentation +2 added lines, -2 removed lines

@@ -793,7 +793,7 @@ 
 		if (!$this->connection)
 		{
 			$this->error = 'bad_server';
-            		$this->last_message = 'Invalid Server';
+					$this->last_message = 'Invalid Server';
 			return;
 		}
 
@@ -801,7 +801,7 @@ 
 		if (!$this->check_response(220))
 		{
 			$this->error = 'bad_response';
-		        $this->last_message = 'Bad Response';
+				$this->last_message = 'Bad Response';
 			return;
 		}
 

Sources/minify/src/JS.php

Indentation +397 added lines, -397 removed lines

@@ -14,122 +14,122 @@ 
  */
 class JS extends Minify
 {
-    /**
-     * Var-matching regex based on http://stackoverflow.com/a/9337047/802993.
-     *
-     * Note that regular expressions using that bit must have the PCRE_UTF8
-     * pattern modifier (/u) set.
-     *
-     * @var string
-     */
-    const REGEX_VARIABLE = 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-
-    /**
-     * Full list of JavaScript reserved words.
-     * Will be loaded from /data/js/keywords_reserved.txt.
-     *
-     * @see https://mathiasbynens.be/notes/reserved-keywords
-     *
-     * @var string[]
-     */
-    protected $keywordsReserved = array();
-
-    /**
-     * List of JavaScript reserved words that accept a <variable, value, ...>
-     * after them. Some end of lines are not the end of a statement, like with
-     * these keywords.
-     *
-     * E.g.: we shouldn't insert a ; after this else
-     * else
-     *     console.log('this is quite fine')
-     *
-     * Will be loaded from /data/js/keywords_before.txt
-     *
-     * @var string[]
-     */
-    protected $keywordsBefore = array();
-
-    /**
-     * List of JavaScript reserved words that accept a <variable, value, ...>
-     * before them. Some end of lines are not the end of a statement, like when
-     * continued by one of these keywords on the newline.
-     *
-     * E.g.: we shouldn't insert a ; before this instanceof
-     * variable
-     *     instanceof String
-     *
-     * Will be loaded from /data/js/keywords_after.txt
-     *
-     * @var string[]
-     */
-    protected $keywordsAfter = array();
-
-    /**
-     * List of JavaScript operators that accept a <variable, value, ...> after
-     * them. Some end of lines are not the end of a statement, like with these
-     * operators.
-     *
-     * Note: Most operators are fine, we've only removed !, ++ and --.
-     * There can't be a newline separating ! and whatever it is negating.
-     * ++ & -- have to be joined with the value they're in-/decrementing.
-     *
-     * Will be loaded from /data/js/operators_before.txt
-     *
-     * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Expressions_and_Operators
-     *
-     * @var string[]
-     */
-    protected $operatorsBefore = array();
-
-    /**
-     * List of JavaScript operators that accept a <variable, value, ...> before
-     * them. Some end of lines are not the end of a statement, like when
-     * continued by one of these operators on the newline.
-     *
-     * Note: Most operators are fine, we've only removed ), ], ++ and --.
-     * ++ & -- have to be joined with the value they're in-/decrementing.
-     * ) & ] are "special" in that they have lots or usecases. () for example
-     * is used for function calls, for grouping, in if () and for (), ...
-     *
-     * Will be loaded from /data/js/operators_after.txt
-     *
-     * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Expressions_and_Operators
-     *
-     * @var string[]
-     */
-    protected $operatorsAfter = array();
-
-    /**
-     * {@inheritdoc}
-     */
-    public function __construct()
-    {
-        call_user_func_array(array('parent', '__construct'), func_get_args());
-
-        $dataDir = __DIR__.'/../data/js/';
-        $options = FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES;
-        $this->keywordsReserved = file($dataDir.'keywords_reserved.txt', $options);
-        $this->keywordsBefore = file($dataDir.'keywords_before.txt', $options);
-        $this->keywordsAfter = file($dataDir.'keywords_after.txt', $options);
-        $this->operatorsBefore = file($dataDir.'operators_before.txt', $options);
-        $this->operatorsAfter = file($dataDir.'operators_after.txt', $options);
-    }
-
-    /**
-     * Minify the data.
-     * Perform JS optimizations.
-     *
-     * @param string[optional] $path Path to write the data to.
-     *
-     * @return string The minified data.
-     */
-    public function execute($path = null)
-    {
-        $content = '';
-
-        // loop files
-        foreach ($this->data as $source => $js) {
-            /*
+	/**
+	 * Var-matching regex based on http://stackoverflow.com/a/9337047/802993.
+	 *
+	 * Note that regular expressions using that bit must have the PCRE_UTF8
+	 * pattern modifier (/u) set.
+	 *
+	 * @var string
+	 */
+	const REGEX_VARIABLE = 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+
+	/**
+	 * Full list of JavaScript reserved words.
+	 * Will be loaded from /data/js/keywords_reserved.txt.
+	 *
+	 * @see https://mathiasbynens.be/notes/reserved-keywords
+	 *
+	 * @var string[]
+	 */
+	protected $keywordsReserved = array();
+
+	/**
+	 * List of JavaScript reserved words that accept a <variable, value, ...>
+	 * after them. Some end of lines are not the end of a statement, like with
+	 * these keywords.
+	 *
+	 * E.g.: we shouldn't insert a ; after this else
+	 * else
+	 *     console.log('this is quite fine')
+	 *
+	 * Will be loaded from /data/js/keywords_before.txt
+	 *
+	 * @var string[]
+	 */
+	protected $keywordsBefore = array();
+
+	/**
+	 * List of JavaScript reserved words that accept a <variable, value, ...>
+	 * before them. Some end of lines are not the end of a statement, like when
+	 * continued by one of these keywords on the newline.
+	 *
+	 * E.g.: we shouldn't insert a ; before this instanceof
+	 * variable
+	 *     instanceof String
+	 *
+	 * Will be loaded from /data/js/keywords_after.txt
+	 *
+	 * @var string[]
+	 */
+	protected $keywordsAfter = array();
+
+	/**
+	 * List of JavaScript operators that accept a <variable, value, ...> after
+	 * them. Some end of lines are not the end of a statement, like with these
+	 * operators.
+	 *
+	 * Note: Most operators are fine, we've only removed !, ++ and --.
+	 * There can't be a newline separating ! and whatever it is negating.
+	 * ++ & -- have to be joined with the value they're in-/decrementing.
+	 *
+	 * Will be loaded from /data/js/operators_before.txt
+	 *
+	 * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Expressions_and_Operators
+	 *
+	 * @var string[]
+	 */
+	protected $operatorsBefore = array();
+
+	/**
+	 * List of JavaScript operators that accept a <variable, value, ...> before
+	 * them. Some end of lines are not the end of a statement, like when
+	 * continued by one of these operators on the newline.
+	 *
+	 * Note: Most operators are fine, we've only removed ), ], ++ and --.
+	 * ++ & -- have to be joined with the value they're in-/decrementing.
+	 * ) & ] are "special" in that they have lots or usecases. () for example
+	 * is used for function calls, for grouping, in if () and for (), ...
+	 *
+	 * Will be loaded from /data/js/operators_after.txt
+	 *
+	 * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Expressions_and_Operators
+	 *
+	 * @var string[]
+	 */
+	protected $operatorsAfter = array();
+
+	/**
+	 * {@inheritdoc}
+	 */
+	public function __construct()
+	{
+		call_user_func_array(array('parent', '__construct'), func_get_args());
+
+		$dataDir = __DIR__.'/../data/js/';
+		$options = FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES;
+		$this->keywordsReserved = file($dataDir.'keywords_reserved.txt', $options);
+		$this->keywordsBefore = file($dataDir.'keywords_before.txt', $options);
+		$this->keywordsAfter = file($dataDir.'keywords_after.txt', $options);
+		$this->operatorsBefore = file($dataDir.'operators_before.txt', $options);
+		$this->operatorsAfter = file($dataDir.'operators_after.txt', $options);
+	}
+
+	/**
+	 * Minify the data.
+	 * Perform JS optimizations.
+	 *
+	 * @param string[optional] $path Path to write the data to.
+	 *
+	 * @return string The minified data.
+	 */
+	public function execute($path = null)
+	{
+		$content = '';
+
+		// loop files
+		foreach ($this->data as $source => $js) {
+			/*
              * Combine js: separating the scripts by a ;
              * I'm also adding a newline: it will be eaten when whitespace is
              * stripped, but we need to make sure we're not just appending
@@ -137,10 +137,10 @@ 
              * singe-line comment on the last line (in which case it would also
              * be seen as part of that comment)
              */
-            $content .= $js."\n;";
-        }
+			$content .= $js."\n;";
+		}
 
-        /*
+		/*
          * Let's first take out strings, comments and regular expressions.
          * All of these can contain JS code-like characters, and we should make
          * sure any further magic ignores anything inside of these.
@@ -151,159 +151,159 @@ 
          * Comments will be removed altogether, strings and regular expressions
          * will be replaced by placeholder text, which we'll restore later.
          */
-        $this->extractStrings('\'"`');
-        $this->stripComments();
-        $this->extractRegex();
-        $content = $this->replace($content);
+		$this->extractStrings('\'"`');
+		$this->stripComments();
+		$this->extractRegex();
+		$content = $this->replace($content);
 
-        $content = $this->stripWhitespace($content);
-        $content = $this->propertyNotation($content);
-        $content = $this->shortenBools($content);
+		$content = $this->stripWhitespace($content);
+		$content = $this->propertyNotation($content);
+		$content = $this->shortenBools($content);
 
-        /*
+		/*
          * Earlier, we extracted strings & regular expressions and replaced them
          * with placeholder text. This will restore them.
          */
-        $content = $this->restoreExtractedData($content);
-
-        return $content;
-    }
-
-    /**
-     * Strip comments from source code.
-     */
-    protected function stripComments()
-    {
-        // single-line comments
-        $this->registerPattern('/\/\/.*$/m', '');
-
-        // multi-line comments
-        $this->registerPattern('/\/\*.*?\*\//s', '');
-    }
-
-    /**
-     * JS can have /-delimited regular expressions, like: /ab+c/.match(string).
-     *
-     * The content inside the regex can contain characters that may be confused
-     * for JS code: e.g. it could contain whitespace it needs to match & we
-     * don't want to strip whitespace in there.
-     *
-     * The regex can be pretty simple: we don't have to care about comments,
-     * (which also use slashes) because stripComments() will have stripped those
-     * already.
-     *
-     * This method will replace all string content with simple REGEX#
-     * placeholder text, so we've rid all regular expressions from characters
-     * that may be misinterpreted. Original regex content will be saved in
-     * $this->extracted and after doing all other minifying, we can restore the
-     * original content via restoreRegex()
-     */
-    protected function extractRegex()
-    {
-        // PHP only supports $this inside anonymous functions since 5.4
-        $minifier = $this;
-        $callback = function ($match) use ($minifier) {
-            $count = count($minifier->extracted);
-            $placeholder = '/'.$count.'/';
-            $minifier->extracted[$placeholder] = $match[1];
-
-            return $placeholder;
-        };
-
-        // it's a regex if we can find an opening and (not escaped) closing /,
-        // include \n because it may be there for a reason
-        // (https://github.com/matthiasmullie/minify/issues/56)
-        $pattern = '(\/.*?(?<!\\\\)(\\\\\\\\)*+\/\n?)';
-
-        // / can't be preceded by variable, value, or similar because then
-        // it's going to be division
-        // checking for that is complex, so we'll do inverse:
-        // * at the beginning of the file, it's not division, but regex
-        $this->registerPattern('/^\s*\K'.$pattern.'/', $callback);
-        // * following another operator, it's not division, but regex
-        $operators = $this->getOperatorsForRegex($this->operatorsBefore, '/');
-        $operators += $this->getKeywordsForRegex($this->keywordsReserved, '/');
-        $this->registerPattern('/(?:'.implode('|', $operators).')\s*\K'.$pattern.'/', $callback);
-    }
-
-    /**
-     * Strip whitespace.
-     *
-     * We won't strip *all* whitespace, but as much as possible. The thing that
-     * we'll preserve are newlines we're unsure about.
-     * JavaScript doesn't require statements to be terminated with a semicolon.
-     * It will automatically fix missing semicolons with ASI (automatic semi-
-     * colon insertion) at the end of line causing errors (without semicolon.)
-     *
-     * Because it's sometimes hard to tell if a newline is part of a statement
-     * that should be terminated or not, we'll just leave some of them alone.
-     *
-     * @param string $content The content to strip the whitespace for.
-     *
-     * @return string
-     */
-    protected function stripWhitespace($content)
-    {
-        // uniform line endings, make them all line feed
-        $content = str_replace(array("\r\n", "\r"), "\n", $content);
-
-        // collapse all non-line feed whitespace into a single space
-        $content = preg_replace('/[^\S\n]+/', ' ', $content);
-
-        // strip leading & trailing whitespace
-        $content = str_replace(array(" \n", "\n "), "\n", $content);
-
-        // collapse consecutive line feeds into just 1
-        $content = preg_replace('/\n+/', "\n", $content);
-
-        $before = $this->getOperatorsForRegex($this->operatorsBefore, '/');
-        $after = $this->getOperatorsForRegex($this->operatorsAfter, '/');
-        $operators = $before + $after;
-
-        // strip whitespace that ends in (or next line begin with) an operator
-        // that allows statements to be broken up over multiple lines
-        unset($before['+'], $before['-'], $after['+'], $after['-']);
-        $content = preg_replace(
-            array(
-                '/('.implode('|', $before).')\s+/',
-                '/\s+('.implode('|', $after).')/',
-            ), '\\1', $content
-        );
-
-        // make sure + and - can't be mistaken for, or joined into ++ and --
-        $content = preg_replace(
-            array(
-                '/(?<![\+\-])\s*([\+\-])(?![\+\-])/',
-                '/(?<![\+\-])([\+\-])\s*(?![\+\-])/',
-            ), '\\1', $content
-        );
-
-        /*
+		$content = $this->restoreExtractedData($content);
+
+		return $content;
+	}
+
+	/**
+	 * Strip comments from source code.
+	 */
+	protected function stripComments()
+	{
+		// single-line comments
+		$this->registerPattern('/\/\/.*$/m', '');
+
+		// multi-line comments
+		$this->registerPattern('/\/\*.*?\*\//s', '');
+	}
+
+	/**
+	 * JS can have /-delimited regular expressions, like: /ab+c/.match(string).
+	 *
+	 * The content inside the regex can contain characters that may be confused
+	 * for JS code: e.g. it could contain whitespace it needs to match & we
+	 * don't want to strip whitespace in there.
+	 *
+	 * The regex can be pretty simple: we don't have to care about comments,
+	 * (which also use slashes) because stripComments() will have stripped those
+	 * already.
+	 *
+	 * This method will replace all string content with simple REGEX#
+	 * placeholder text, so we've rid all regular expressions from characters
+	 * that may be misinterpreted. Original regex content will be saved in
+	 * $this->extracted and after doing all other minifying, we can restore the
+	 * original content via restoreRegex()
+	 */
+	protected function extractRegex()
+	{
+		// PHP only supports $this inside anonymous functions since 5.4
+		$minifier = $this;
+		$callback = function ($match) use ($minifier) {
+			$count = count($minifier->extracted);
+			$placeholder = '/'.$count.'/';
+			$minifier->extracted[$placeholder] = $match[1];
+
+			return $placeholder;
+		};
+
+		// it's a regex if we can find an opening and (not escaped) closing /,
+		// include \n because it may be there for a reason
+		// (https://github.com/matthiasmullie/minify/issues/56)
+		$pattern = '(\/.*?(?<!\\\\)(\\\\\\\\)*+\/\n?)';
+
+		// / can't be preceded by variable, value, or similar because then
+		// it's going to be division
+		// checking for that is complex, so we'll do inverse:
+		// * at the beginning of the file, it's not division, but regex
+		$this->registerPattern('/^\s*\K'.$pattern.'/', $callback);
+		// * following another operator, it's not division, but regex
+		$operators = $this->getOperatorsForRegex($this->operatorsBefore, '/');
+		$operators += $this->getKeywordsForRegex($this->keywordsReserved, '/');
+		$this->registerPattern('/(?:'.implode('|', $operators).')\s*\K'.$pattern.'/', $callback);
+	}
+
+	/**
+	 * Strip whitespace.
+	 *
+	 * We won't strip *all* whitespace, but as much as possible. The thing that
+	 * we'll preserve are newlines we're unsure about.
+	 * JavaScript doesn't require statements to be terminated with a semicolon.
+	 * It will automatically fix missing semicolons with ASI (automatic semi-
+	 * colon insertion) at the end of line causing errors (without semicolon.)
+	 *
+	 * Because it's sometimes hard to tell if a newline is part of a statement
+	 * that should be terminated or not, we'll just leave some of them alone.
+	 *
+	 * @param string $content The content to strip the whitespace for.
+	 *
+	 * @return string
+	 */
+	protected function stripWhitespace($content)
+	{
+		// uniform line endings, make them all line feed
+		$content = str_replace(array("\r\n", "\r"), "\n", $content);
+
+		// collapse all non-line feed whitespace into a single space
+		$content = preg_replace('/[^\S\n]+/', ' ', $content);
+
+		// strip leading & trailing whitespace
+		$content = str_replace(array(" \n", "\n "), "\n", $content);
+
+		// collapse consecutive line feeds into just 1
+		$content = preg_replace('/\n+/', "\n", $content);
+
+		$before = $this->getOperatorsForRegex($this->operatorsBefore, '/');
+		$after = $this->getOperatorsForRegex($this->operatorsAfter, '/');
+		$operators = $before + $after;
+
+		// strip whitespace that ends in (or next line begin with) an operator
+		// that allows statements to be broken up over multiple lines
+		unset($before['+'], $before['-'], $after['+'], $after['-']);
+		$content = preg_replace(
+			array(
+				'/('.implode('|', $before).')\s+/',
+				'/\s+('.implode('|', $after).')/',
+			), '\\1', $content
+		);
+
+		// make sure + and - can't be mistaken for, or joined into ++ and --
+		$content = preg_replace(
+			array(
+				'/(?<![\+\-])\s*([\+\-])(?![\+\-])/',
+				'/(?<![\+\-])([\+\-])\s*(?![\+\-])/',
+			), '\\1', $content
+		);
+
+		/*
          * We didn't strip whitespace after a couple of operators because they
          * could be used in different contexts and we can't be sure it's ok to
          * strip the newlines. However, we can safely strip any non-line feed
          * whitespace that follows them.
          */
-        $content = preg_replace('/([\}\)\]])[^\S\n]+(?!'.implode('|', $operators).')/', '\\1', $content);
+		$content = preg_replace('/([\}\)\]])[^\S\n]+(?!'.implode('|', $operators).')/', '\\1', $content);
 
-        // collapse whitespace around reserved words into single space
-        $before = $this->getKeywordsForRegex($this->keywordsBefore, '/');
-        $after = $this->getKeywordsForRegex($this->keywordsAfter, '/');
-        $content = preg_replace('/(^|[;\}\s])\K('.implode('|', $before).')\s+/', '\\2 ', $content);
-        $content = preg_replace('/\s+('.implode('|', $after).')(?=([;\{\s]|$))/', ' \\1', $content);
+		// collapse whitespace around reserved words into single space
+		$before = $this->getKeywordsForRegex($this->keywordsBefore, '/');
+		$after = $this->getKeywordsForRegex($this->keywordsAfter, '/');
+		$content = preg_replace('/(^|[;\}\s])\K('.implode('|', $before).')\s+/', '\\2 ', $content);
+		$content = preg_replace('/\s+('.implode('|', $after).')(?=([;\{\s]|$))/', ' \\1', $content);
 
-        /*
+		/*
          * Get rid of double semicolons, except where they can be used like:
          * "for(v=1,_=b;;)", "for(v=1;;v++)" or "for(;;ja||(ja=true))".
          * I'll safeguard these double semicolons inside for-loops by
          * temporarily replacing them with an invalid condition: they won't have
          * a double semicolon and will be easy to spot to restore afterwards.
          */
-        $content = preg_replace('/\bfor\(([^;]*);;([^;]*)\)/', 'for(\\1;-;\\2)', $content);
-        $content = preg_replace('/;+/', ';', $content);
-        $content = preg_replace('/\bfor\(([^;]*);-;([^;]*)\)/', 'for(\\1;;\\2)', $content);
+		$content = preg_replace('/\bfor\(([^;]*);;([^;]*)\)/', 'for(\\1;-;\\2)', $content);
+		$content = preg_replace('/;+/', ';', $content);
+		$content = preg_replace('/\bfor\(([^;]*);-;([^;]*)\)/', 'for(\\1;;\\2)', $content);
 
-        /*
+		/*
          * Next, we'll be removing all semicolons where ASI kicks in.
          * for-loops however, can have an empty body (ending in only a
          * semicolon), like: `for(i=1;i<3;i++);`
@@ -313,9 +313,9 @@ 
          * I'm going to double that semicolon (if any) so after the next line,
          * which strips semicolons here & there, we're still left with this one.
          */
-        $content = preg_replace('/(for\([^;]*;[^;]*;[^;\{]*\));(\}|$)/s', '\\1;;\\2', $content);
+		$content = preg_replace('/(for\([^;]*;[^;]*;[^;\{]*\));(\}|$)/s', '\\1;;\\2', $content);
 
-        /*
+		/*
          * We also can't strip empty else-statements. Even though they're
          * useless and probably shouldn't be in the code in the first place, we
          * shouldn't be stripping the `;` that follows it as it breaks the code.
@@ -323,114 +323,114 @@ 
          *
          * @see https://github.com/matthiasmullie/minify/issues/91
          */
-        $content = preg_replace('/else;/s', '', $content);
+		$content = preg_replace('/else;/s', '', $content);
 
-        /*
+		/*
          * We also don't really want to terminate statements followed by closing
          * curly braces (which we've ignored completely up until now) or end-of-
          * script: ASI will kick in here & we're all about minifying.
          * Semicolons at beginning of the file don't make any sense either.
          */
-        $content = preg_replace('/;(\}|$)/s', '\\1', $content);
-        $content = ltrim($content, ';');
-
-        // get rid of remaining whitespace af beginning/end
-        return trim($content);
-    }
-
-    /**
-     * We'll strip whitespace around certain operators with regular expressions.
-     * This will prepare the given array by escaping all characters.
-     *
-     * @param string[] $operators
-     * @param string   $delimiter
-     *
-     * @return string[]
-     */
-    protected function getOperatorsForRegex(array $operators, $delimiter = '/')
-    {
-        // escape operators for use in regex
-        $delimiter = array_fill(0, count($operators), $delimiter);
-        $escaped = array_map('preg_quote', $operators, $delimiter);
-
-        $operators = array_combine($operators, $escaped);
-
-        // ignore + & - for now, they'll get special treatment
-        unset($operators['+'], $operators['-']);
-
-        // dot can not just immediately follow a number; it can be confused for
-        // decimal point, or calling a method on it, e.g. 42 .toString()
-        $operators['.'] = '(?<![0-9]\s)\.';
-
-        // don't confuse = with other assignment shortcuts (e.g. +=)
-        $chars = preg_quote('+-*\=<>%&|');
-        $operators['='] = '(?<!['.$chars.'])\=';
-
-        return $operators;
-    }
-
-    /**
-     * We'll strip whitespace around certain keywords with regular expressions.
-     * This will prepare the given array by escaping all characters.
-     *
-     * @param string[] $keywords
-     * @param string   $delimiter
-     *
-     * @return string[]
-     */
-    protected function getKeywordsForRegex(array $keywords, $delimiter = '/')
-    {
-        // escape keywords for use in regex
-        $delimiter = array_fill(0, count($keywords), $delimiter);
-        $escaped = array_map('preg_quote', $keywords, $delimiter);
-
-        // add word boundaries
-        array_walk($keywords, function ($value) {
-            return '\b'.$value.'\b';
-        });
-
-        $keywords = array_combine($keywords, $escaped);
-
-        return $keywords;
-    }
-
-    /**
-     * Replaces all occurrences of array['key'] by array.key.
-     *
-     * @param string $content
-     *
-     * @return string
-     */
-    protected function propertyNotation($content)
-    {
-        // PHP only supports $this inside anonymous functions since 5.4
-        $minifier = $this;
-        $keywords = $this->keywordsReserved;
-        $callback = function ($match) use ($minifier, $keywords) {
-            $property = trim($minifier->extracted[$match[1]], '\'"');
-
-            /*
+		$content = preg_replace('/;(\}|$)/s', '\\1', $content);
+		$content = ltrim($content, ';');
+
+		// get rid of remaining whitespace af beginning/end
+		return trim($content);
+	}
+
+	/**
+	 * We'll strip whitespace around certain operators with regular expressions.
+	 * This will prepare the given array by escaping all characters.
+	 *
+	 * @param string[] $operators
+	 * @param string   $delimiter
+	 *
+	 * @return string[]
+	 */
+	protected function getOperatorsForRegex(array $operators, $delimiter = '/')
+	{
+		// escape operators for use in regex
+		$delimiter = array_fill(0, count($operators), $delimiter);
+		$escaped = array_map('preg_quote', $operators, $delimiter);
+
+		$operators = array_combine($operators, $escaped);
+
+		// ignore + & - for now, they'll get special treatment
+		unset($operators['+'], $operators['-']);
+
+		// dot can not just immediately follow a number; it can be confused for
+		// decimal point, or calling a method on it, e.g. 42 .toString()
+		$operators['.'] = '(?<![0-9]\s)\.';
+
+		// don't confuse = with other assignment shortcuts (e.g. +=)
+		$chars = preg_quote('+-*\=<>%&|');
+		$operators['='] = '(?<!['.$chars.'])\=';
+
+		return $operators;
+	}
+
+	/**
+	 * We'll strip whitespace around certain keywords with regular expressions.
+	 * This will prepare the given array by escaping all characters.
+	 *
+	 * @param string[] $keywords
+	 * @param string   $delimiter
+	 *
+	 * @return string[]
+	 */
+	protected function getKeywordsForRegex(array $keywords, $delimiter = '/')
+	{
+		// escape keywords for use in regex
+		$delimiter = array_fill(0, count($keywords), $delimiter);
+		$escaped = array_map('preg_quote', $keywords, $delimiter);
+
+		// add word boundaries
+		array_walk($keywords, function ($value) {
+			return '\b'.$value.'\b';
+		});
+
+		$keywords = array_combine($keywords, $escaped);
+
+		return $keywords;
+	}
+
+	/**
+	 * Replaces all occurrences of array['key'] by array.key.
+	 *
+	 * @param string $content
+	 *
+	 * @return string
+	 */
+	protected function propertyNotation($content)
+	{
+		// PHP only supports $this inside anonymous functions since 5.4
+		$minifier = $this;
+		$keywords = $this->keywordsReserved;
+		$callback = function ($match) use ($minifier, $keywords) {
+			$property = trim($minifier->extracted[$match[1]], '\'"');
+
+			/*
              * Check if the property is a reserved keyword. In this context (as
              * property of an object literal/array) it shouldn't matter, but IE8
              * freaks out with "Expected identifier".
              */
-            if (in_array($property, $keywords)) {
-                return $match[0];
-            }
+			if (in_array($property, $keywords)) {
+				return $match[0];
+			}
 
-            /*
+			/*
              * See if the property is in a variable-like format (e.g.
              * array['key-here'] can't be replaced by array.key-here since '-'
              * is not a valid character there.
              */
-            if (!preg_match('/^'.$minifier::REGEX_VARIABLE.'$/u', $property)) {
-                return $match[0];
-            }
+			if (!preg_match('/^'.$minifier::REGEX_VARIABLE.'$/u', $property)) {
+				return $match[0];
+			}
 
-            return '.'.$property;
-        };
+			return '.'.$property;
+		};
 
-        /*
+		/*
          * Figure out if previous character is a variable name (of the array
          * we want to use property notation on) - this is to make sure
          * standalone ['value'] arrays aren't confused for keys-of-an-array.
@@ -438,61 +438,61 @@ 
          * regex implementation doesn't allow unfixed-length look-behind
          * assertions.
          */
-        preg_match('/(\[[^\]]+\])[^\]]*$/', static::REGEX_VARIABLE, $previousChar);
-        $previousChar = $previousChar[1];
+		preg_match('/(\[[^\]]+\])[^\]]*$/', static::REGEX_VARIABLE, $previousChar);
+		$previousChar = $previousChar[1];
 
-        /*
+		/*
          * Make sure word preceding the ['value'] is not a keyword, e.g.
          * return['x']. Because -again- PHP's regex implementation doesn't allow
          * unfixed-length look-behind assertions, I'm just going to do a lot of
          * separate look-behind assertions, one for each keyword.
          */
-        $keywords = $this->getKeywordsForRegex($keywords);
-        $keywords = '(?<!'.implode(')(?<!', $keywords).')';
-
-        return preg_replace_callback('/(?<='.$previousChar.'|\])'.$keywords.'\[(([\'"])[0-9]+\\2)\]/u', $callback, $content);
-    }
-
-    /**
-     * Replaces true & false by !0 and !1.
-     *
-     * @param string $content
-     *
-     * @return string
-     */
-    protected function shortenBools($content)
-    {
-        $content = preg_replace('/\btrue\b/', '!0', $content);
-        $content = preg_replace('/\bfalse\b/', '!1', $content);
-
-        // for(;;) is exactly the same as while(true)
-        $content = preg_replace('/\bwhile\(!0\){/', 'for(;;){', $content);
-
-        // now make sure we didn't turn any do ... while(true) into do ... for(;;)
-        preg_match_all('/\bdo\b/', $content, $dos, PREG_OFFSET_CAPTURE | PREG_SET_ORDER);
-
-        // go backward to make sure positional offsets aren't altered when $content changes
-        $dos = array_reverse($dos);
-        foreach ($dos as $do) {
-            $offsetDo = $do[0][1];
-
-            // find all `while` (now `for`) following `do`: one of those must be
-            // associated with the `do` and be turned back into `while`
-            preg_match_all('/\bfor\(;;\)/', $content, $whiles, PREG_OFFSET_CAPTURE | PREG_SET_ORDER, $offsetDo);
-            foreach ($whiles as $while) {
-                $offsetWhile = $while[0][1];
-
-                $open = substr_count($content, '{', $offsetDo, $offsetWhile - $offsetDo);
-                $close = substr_count($content, '}', $offsetDo, $offsetWhile - $offsetDo);
-                if ($open === $close) {
-                    // only restore `while` if amount of `{` and `}` are the same;
-                    // otherwise, that `for` isn't associated with this `do`
-                    $content = substr_replace($content, 'while(!0)', $offsetWhile, strlen('for(;;)'));
-                    break;
-                }
-            }
-        }
-
-        return $content;
-    }
+		$keywords = $this->getKeywordsForRegex($keywords);
+		$keywords = '(?<!'.implode(')(?<!', $keywords).')';
+
+		return preg_replace_callback('/(?<='.$previousChar.'|\])'.$keywords.'\[(([\'"])[0-9]+\\2)\]/u', $callback, $content);
+	}
+
+	/**
+	 * Replaces true & false by !0 and !1.
+	 *
+	 * @param string $content
+	 *
+	 * @return string
+	 */
+	protected function shortenBools($content)
+	{
+		$content = preg_replace('/\btrue\b/', '!0', $content);
+		$content = preg_replace('/\bfalse\b/', '!1', $content);
+
+		// for(;;) is exactly the same as while(true)
+		$content = preg_replace('/\bwhile\(!0\){/', 'for(;;){', $content);
+
+		// now make sure we didn't turn any do ... while(true) into do ... for(;;)
+		preg_match_all('/\bdo\b/', $content, $dos, PREG_OFFSET_CAPTURE | PREG_SET_ORDER);
+
+		// go backward to make sure positional offsets aren't altered when $content changes
+		$dos = array_reverse($dos);
+		foreach ($dos as $do) {
+			$offsetDo = $do[0][1];
+
+			// find all `while` (now `for`) following `do`: one of those must be
+			// associated with the `do` and be turned back into `while`
+			preg_match_all('/\bfor\(;;\)/', $content, $whiles, PREG_OFFSET_CAPTURE | PREG_SET_ORDER, $offsetDo);
+			foreach ($whiles as $while) {
+				$offsetWhile = $while[0][1];
+
+				$open = substr_count($content, '{', $offsetDo, $offsetWhile - $offsetDo);
+				$close = substr_count($content, '}', $offsetDo, $offsetWhile - $offsetDo);
+				if ($open === $close) {
+					// only restore `while` if amount of `{` and `}` are the same;
+					// otherwise, that `for` isn't associated with this `do`
+					$content = substr_replace($content, 'while(!0)', $offsetWhile, strlen('for(;;)'));
+					break;
+				}
+			}
+		}
+
+		return $content;
+	}
 }

Sources/minify/src/Converter.php

Indentation +169 added lines, -169 removed lines

@@ -18,178 +18,178 @@
  */
 class Converter
 {
-    /**
-     * @var string
-     */
-    protected $from;
-
-    /**
-     * @var string
-     */
-    protected $to;
-
-    /**
-     * @param string $from The original base path (directory, not file!)
-     * @param string $to   The new base path (directory, not file!)
-     */
-    public function __construct($from, $to)
-    {
-        $shared = $this->shared($from, $to);
-        if ($shared === '') {
-            // when both paths have nothing in common, one of them is probably
-            // absolute while the other is relative
-            $cwd = getcwd();
-            $from = strpos($from, $cwd) === 0 ? $from : $cwd.'/'.$from;
-            $to = strpos($to, $cwd) === 0 ? $to : $cwd.'/'.$to;
-
-            // or traveling the tree via `..`
-            // attempt to resolve path, or assume it's fine if it doesn't exist
-            $from = realpath($from) ?: $from;
-            $to = realpath($to) ?: $to;
-        }
-
-        $from = $this->normalize($from);
-        $to = $this->normalize($to);
-
-        $from = $this->dirname($from);
-        $to = $this->dirname($to);
-
-        $this->from = $from;
-        $this->to = $to;
-    }
-
-    /**
-     * Normalize path.
-     *
-     * @param string $path
-     *
-     * @return string
-     */
-    protected function normalize($path)
-    {
-        // deal with different operating systems' directory structure
-        $path = rtrim(str_replace(DIRECTORY_SEPARATOR, '/', $path), '/');
-
-        /*
+	/**
+	 * @var string
+	 */
+	protected $from;
+
+	/**
+	 * @var string
+	 */
+	protected $to;
+
+	/**
+	 * @param string $from The original base path (directory, not file!)
+	 * @param string $to   The new base path (directory, not file!)
+	 */
+	public function __construct($from, $to)
+	{
+		$shared = $this->shared($from, $to);
+		if ($shared === '') {
+			// when both paths have nothing in common, one of them is probably
+			// absolute while the other is relative
+			$cwd = getcwd();
+			$from = strpos($from, $cwd) === 0 ? $from : $cwd.'/'.$from;
+			$to = strpos($to, $cwd) === 0 ? $to : $cwd.'/'.$to;
+
+			// or traveling the tree via `..`
+			// attempt to resolve path, or assume it's fine if it doesn't exist
+			$from = realpath($from) ?: $from;
+			$to = realpath($to) ?: $to;
+		}
+
+		$from = $this->normalize($from);
+		$to = $this->normalize($to);
+
+		$from = $this->dirname($from);
+		$to = $this->dirname($to);
+
+		$this->from = $from;
+		$this->to = $to;
+	}
+
+	/**
+	 * Normalize path.
+	 *
+	 * @param string $path
+	 *
+	 * @return string
+	 */
+	protected function normalize($path)
+	{
+		// deal with different operating systems' directory structure
+		$path = rtrim(str_replace(DIRECTORY_SEPARATOR, '/', $path), '/');
+
+		/*
          * Example:
          *     /home/forkcms/frontend/cache/compiled_templates/../../core/layout/css/../images/img.gif
          * to
          *     /home/forkcms/frontend/core/layout/images/img.gif
          */
-        do {
-            $path = preg_replace('/[^\/]+(?<!\.\.)\/\.\.\//', '', $path, -1, $count);
-        } while ($count);
-
-        return $path;
-    }
-
-    /**
-     * Figure out the shared path of 2 locations.
-     *
-     * Example:
-     *     /home/forkcms/frontend/core/layout/images/img.gif
-     * and
-     *     /home/forkcms/frontend/cache/minified_css
-     * share
-     *     /home/forkcms/frontend
-     *
-     * @param string $path1
-     * @param string $path2
-     *
-     * @return string
-     */
-    protected function shared($path1, $path2)
-    {
-        // $path could theoretically be empty (e.g. no path is given), in which
-        // case it shouldn't expand to array(''), which would compare to one's
-        // root /
-        $path1 = $path1 ? explode('/', $path1) : array();
-        $path2 = $path2 ? explode('/', $path2) : array();
-
-        $shared = array();
-
-        // compare paths & strip identical ancestors
-        foreach ($path1 as $i => $chunk) {
-            if (isset($path2[$i]) && $path1[$i] == $path2[$i]) {
-                $shared[] = $chunk;
-            } else {
-                break;
-            }
-        }
-
-        return implode('/', $shared);
-    }
-
-    /**
-     * Convert paths relative from 1 file to another.
-     *
-     * E.g.
-     *     ../images/img.gif relative to /home/forkcms/frontend/core/layout/css
-     * should become:
-     *     ../../core/layout/images/img.gif relative to
-     *     /home/forkcms/frontend/cache/minified_css
-     *
-     * @param string $path The relative path that needs to be converted.
-     *
-     * @return string The new relative path.
-     */
-    public function convert($path)
-    {
-        // quit early if conversion makes no sense
-        if ($this->from === $this->to) {
-            return $path;
-        }
-
-        $path = $this->normalize($path);
-        // if we're not dealing with a relative path, just return absolute
-        if (strpos($path, '/') === 0) {
-            return $path;
-        }
-
-        // normalize paths
-        $path = $this->normalize($this->from.'/'.$path);
-
-        // strip shared ancestor paths
-        $shared = $this->shared($path, $this->to);
-        $path = mb_substr($path, mb_strlen($shared));
-        $to = mb_substr($this->to, mb_strlen($shared));
-
-        // add .. for every directory that needs to be traversed to new path
-        $to = str_repeat('../', mb_substr_count($to, '/'));
-
-        return $to.ltrim($path, '/');
-    }
-
-    /**
-     * Attempt to get the directory name from a path.
-     *
-     * @param string $path
-     *
-     * @return string
-     */
-    public function dirname($path)
-    {
-        if (is_file($path)) {
-            return dirname($path);
-        }
-
-        if (is_dir($path)) {
-            return rtrim($path, '/');
-        }
-
-        // no known file/dir, start making assumptions
-
-        // ends in / = dir
-        if (mb_substr($path, -1) === '/') {
-            return rtrim($path, '/');
-        }
-
-        // has a dot in the name, likely a file
-        if (preg_match('/.*\..*$/', basename($path)) !== 0) {
-            return dirname($path);
-        }
-
-        // you're on your own here!
-        return $path;
-    }
+		do {
+			$path = preg_replace('/[^\/]+(?<!\.\.)\/\.\.\//', '', $path, -1, $count);
+		} while ($count);
+
+		return $path;
+	}
+
+	/**
+	 * Figure out the shared path of 2 locations.
+	 *
+	 * Example:
+	 *     /home/forkcms/frontend/core/layout/images/img.gif
+	 * and
+	 *     /home/forkcms/frontend/cache/minified_css
+	 * share
+	 *     /home/forkcms/frontend
+	 *
+	 * @param string $path1
+	 * @param string $path2
+	 *
+	 * @return string
+	 */
+	protected function shared($path1, $path2)
+	{
+		// $path could theoretically be empty (e.g. no path is given), in which
+		// case it shouldn't expand to array(''), which would compare to one's
+		// root /
+		$path1 = $path1 ? explode('/', $path1) : array();
+		$path2 = $path2 ? explode('/', $path2) : array();
+
+		$shared = array();
+
+		// compare paths & strip identical ancestors
+		foreach ($path1 as $i => $chunk) {
+			if (isset($path2[$i]) && $path1[$i] == $path2[$i]) {
+				$shared[] = $chunk;
+			} else {
+				break;
+			}
+		}
+
+		return implode('/', $shared);
+	}
+
+	/**
+	 * Convert paths relative from 1 file to another.
+	 *
+	 * E.g.
+	 *     ../images/img.gif relative to /home/forkcms/frontend/core/layout/css
+	 * should become:
+	 *     ../../core/layout/images/img.gif relative to
+	 *     /home/forkcms/frontend/cache/minified_css
+	 *
+	 * @param string $path The relative path that needs to be converted.
+	 *
+	 * @return string The new relative path.
+	 */
+	public function convert($path)
+	{
+		// quit early if conversion makes no sense
+		if ($this->from === $this->to) {
+			return $path;
+		}
+
+		$path = $this->normalize($path);
+		// if we're not dealing with a relative path, just return absolute
+		if (strpos($path, '/') === 0) {
+			return $path;
+		}
+
+		// normalize paths
+		$path = $this->normalize($this->from.'/'.$path);
+
+		// strip shared ancestor paths
+		$shared = $this->shared($path, $this->to);
+		$path = mb_substr($path, mb_strlen($shared));
+		$to = mb_substr($this->to, mb_strlen($shared));
+
+		// add .. for every directory that needs to be traversed to new path
+		$to = str_repeat('../', mb_substr_count($to, '/'));
+
+		return $to.ltrim($path, '/');
+	}
+
+	/**
+	 * Attempt to get the directory name from a path.
+	 *
+	 * @param string $path
+	 *
+	 * @return string
+	 */
+	public function dirname($path)
+	{
+		if (is_file($path)) {
+			return dirname($path);
+		}
+
+		if (is_dir($path)) {
+			return rtrim($path, '/');
+		}
+
+		// no known file/dir, start making assumptions
+
+		// ends in / = dir
+		if (mb_substr($path, -1) === '/') {
+			return rtrim($path, '/');
+		}
+
+		// has a dot in the name, likely a file
+		if (preg_match('/.*\..*$/', basename($path)) !== 0) {
+			return dirname($path);
+		}
+
+		// you're on your own here!
+		return $path;
+	}
 }

Sources/minify/src/CSS.php

Indentation +412 added lines, -412 removed lines

@@ -17,97 +17,97 @@ 
  */
 class CSS extends Minify
 {
-    /**
-     * @var int
-     */
-    protected $maxImportSize = 5;
-
-    /**
-     * @var string[]
-     */
-    protected $importExtensions = array(
-        'gif' => 'data:image/gif',
-        'png' => 'data:image/png',
-        'jpe' => 'data:image/jpeg',
-        'jpg' => 'data:image/jpeg',
-        'jpeg' => 'data:image/jpeg',
-        'svg' => 'data:image/svg+xml',
-        'woff' => 'data:application/x-font-woff',
-        'tif' => 'image/tiff',
-        'tiff' => 'image/tiff',
-        'xbm' => 'image/x-xbitmap',
-    );
-
-    /**
-     * Set the maximum size if files to be imported.
-     *
-     * Files larger than this size (in kB) will not be imported into the CSS.
-     * Importing files into the CSS as data-uri will save you some connections,
-     * but we should only import relatively small decorative images so that our
-     * CSS file doesn't get too bulky.
-     *
-     * @param int $size Size in kB
-     */
-    public function setMaxImportSize($size)
-    {
-        $this->maxImportSize = $size;
-    }
-
-    /**
-     * Set the type of extensions to be imported into the CSS (to save network
-     * connections).
-     * Keys of the array should be the file extensions & respective values
-     * should be the data type.
-     *
-     * @param string[] $extensions Array of file extensions
-     */
-    public function setImportExtensions(array $extensions)
-    {
-        $this->importExtensions = $extensions;
-    }
-
-    /**
-     * Move any import statements to the top.
-     *
-     * @param string $content Nearly finished CSS content
-     *
-     * @return string
-     */
-    protected function moveImportsToTop($content)
-    {
-        if (preg_match_all('/@import[^;]+;/', $content, $matches)) {
-
-            // remove from content
-            foreach ($matches[0] as $import) {
-                $content = str_replace($import, '', $content);
-            }
-
-            // add to top
-            $content = implode('', $matches[0]).$content;
-        };
-
-        return $content;
-    }
-
-    /**
-     * Combine CSS from import statements.
-     *
-     * @import's will be loaded and their content merged into the original file,
-     * to save HTTP requests.
-     *
-     * @param string   $source  The file to combine imports for.
-     * @param string   $content The CSS content to combine imports for.
-     * @param string[] $parents Parent paths, for circular reference checks.
-     *
-     * @return string
-     *
-     * @throws FileImportException
-     */
-    protected function combineImports($source, $content, $parents)
-    {
-        $importRegexes = array(
-            // @import url(xxx)
-            '/
+	/**
+	 * @var int
+	 */
+	protected $maxImportSize = 5;
+
+	/**
+	 * @var string[]
+	 */
+	protected $importExtensions = array(
+		'gif' => 'data:image/gif',
+		'png' => 'data:image/png',
+		'jpe' => 'data:image/jpeg',
+		'jpg' => 'data:image/jpeg',
+		'jpeg' => 'data:image/jpeg',
+		'svg' => 'data:image/svg+xml',
+		'woff' => 'data:application/x-font-woff',
+		'tif' => 'image/tiff',
+		'tiff' => 'image/tiff',
+		'xbm' => 'image/x-xbitmap',
+	);
+
+	/**
+	 * Set the maximum size if files to be imported.
+	 *
+	 * Files larger than this size (in kB) will not be imported into the CSS.
+	 * Importing files into the CSS as data-uri will save you some connections,
+	 * but we should only import relatively small decorative images so that our
+	 * CSS file doesn't get too bulky.
+	 *
+	 * @param int $size Size in kB
+	 */
+	public function setMaxImportSize($size)
+	{
+		$this->maxImportSize = $size;
+	}
+
+	/**
+	 * Set the type of extensions to be imported into the CSS (to save network
+	 * connections).
+	 * Keys of the array should be the file extensions & respective values
+	 * should be the data type.
+	 *
+	 * @param string[] $extensions Array of file extensions
+	 */
+	public function setImportExtensions(array $extensions)
+	{
+		$this->importExtensions = $extensions;
+	}
+
+	/**
+	 * Move any import statements to the top.
+	 *
+	 * @param string $content Nearly finished CSS content
+	 *
+	 * @return string
+	 */
+	protected function moveImportsToTop($content)
+	{
+		if (preg_match_all('/@import[^;]+;/', $content, $matches)) {
+
+			// remove from content
+			foreach ($matches[0] as $import) {
+				$content = str_replace($import, '', $content);
+			}
+
+			// add to top
+			$content = implode('', $matches[0]).$content;
+		};
+
+		return $content;
+	}
+
+	/**
+	 * Combine CSS from import statements.
+	 *
+	 * @import's will be loaded and their content merged into the original file,
+	 * to save HTTP requests.
+	 *
+	 * @param string   $source  The file to combine imports for.
+	 * @param string   $content The CSS content to combine imports for.
+	 * @param string[] $parents Parent paths, for circular reference checks.
+	 *
+	 * @return string
+	 *
+	 * @throws FileImportException
+	 */
+	protected function combineImports($source, $content, $parents)
+	{
+		$importRegexes = array(
+			// @import url(xxx)
+			'/
             # import statement
             @import
 
@@ -152,8 +152,8 @@ 
 
             /ix',
 
-            // @import 'xxx'
-            '/
+			// @import 'xxx'
+			'/
 
             # import statement
             @import
@@ -192,172 +192,172 @@ 
             ;?
 
             /ix',
-        );
-
-        // find all relative imports in css
-        $matches = array();
-        foreach ($importRegexes as $importRegex) {
-            if (preg_match_all($importRegex, $content, $regexMatches, PREG_SET_ORDER)) {
-                $matches = array_merge($matches, $regexMatches);
-            }
-        }
-
-        $search = array();
-        $replace = array();
-
-        // loop the matches
-        foreach ($matches as $match) {
-            // get the path for the file that will be imported
-            $importPath = dirname($source).'/'.$match['path'];
-
-            // only replace the import with the content if we can grab the
-            // content of the file
-            if ($this->canImportFile($importPath)) {
-                // check if current file was not imported previously in the same
-                // import chain.
-                if (in_array($importPath, $parents)) {
-                    throw new FileImportException('Failed to import file "'.$importPath.'": circular reference detected.');
-                }
-
-                // grab referenced file & minify it (which may include importing
-                // yet other @import statements recursively)
-                $minifier = new static($importPath);
-                $importContent = $minifier->execute($source, $parents);
-
-                // check if this is only valid for certain media
-                if (!empty($match['media'])) {
-                    $importContent = '@media '.$match['media'].'{'.$importContent.'}';
-                }
-
-                // add to replacement array
-                $search[] = $match[0];
-                $replace[] = $importContent;
-            }
-        }
-
-        // replace the import statements
-        $content = str_replace($search, $replace, $content);
-
-        return $content;
-    }
-
-    /**
-     * Import files into the CSS, base64-ized.
-     *
-     * @url(image.jpg) images will be loaded and their content merged into the
-     * original file, to save HTTP requests.
-     *
-     * @param string $source  The file to import files for.
-     * @param string $content The CSS content to import files for.
-     *
-     * @return string
-     */
-    protected function importFiles($source, $content)
-    {
-        $extensions = array_keys($this->importExtensions);
-        $regex = '/url\((["\']?)((?!["\']?data:).*?\.('.implode('|', $extensions).'))\\1\)/i';
-        if ($extensions && preg_match_all($regex, $content, $matches, PREG_SET_ORDER)) {
-            $search = array();
-            $replace = array();
-
-            // loop the matches
-            foreach ($matches as $match) {
-                // get the path for the file that will be imported
-                $path = $match[2];
-                $path = dirname($source).'/'.$path;
-                $extension = $match[3];
-
-                // only replace the import with the content if we're able to get
-                // the content of the file, and it's relatively small
-                if ($this->canImportFile($path) && $this->canImportBySize($path)) {
-                    // grab content && base64-ize
-                    $importContent = $this->load($path);
-                    $importContent = base64_encode($importContent);
-
-                    // build replacement
-                    $search[] = $match[0];
-                    $replace[] = 'url('.$this->importExtensions[$extension].';base64,'.$importContent.')';
-                }
-            }
-
-            // replace the import statements
-            $content = str_replace($search, $replace, $content);
-        }
-
-        return $content;
-    }
-
-    /**
-     * Minify the data.
-     * Perform CSS optimizations.
-     *
-     * @param string[optional] $path    Path to write the data to.
-     * @param string[]         $parents Parent paths, for circular reference checks.
-     *
-     * @return string The minified data.
-     */
-    public function execute($path = null, $parents = array())
-    {
-        $content = '';
-
-        // loop css data (raw data and files)
-        foreach ($this->data as $source => $css) {
-            /*
+		);
+
+		// find all relative imports in css
+		$matches = array();
+		foreach ($importRegexes as $importRegex) {
+			if (preg_match_all($importRegex, $content, $regexMatches, PREG_SET_ORDER)) {
+				$matches = array_merge($matches, $regexMatches);
+			}
+		}
+
+		$search = array();
+		$replace = array();
+
+		// loop the matches
+		foreach ($matches as $match) {
+			// get the path for the file that will be imported
+			$importPath = dirname($source).'/'.$match['path'];
+
+			// only replace the import with the content if we can grab the
+			// content of the file
+			if ($this->canImportFile($importPath)) {
+				// check if current file was not imported previously in the same
+				// import chain.
+				if (in_array($importPath, $parents)) {
+					throw new FileImportException('Failed to import file "'.$importPath.'": circular reference detected.');
+				}
+
+				// grab referenced file & minify it (which may include importing
+				// yet other @import statements recursively)
+				$minifier = new static($importPath);
+				$importContent = $minifier->execute($source, $parents);
+
+				// check if this is only valid for certain media
+				if (!empty($match['media'])) {
+					$importContent = '@media '.$match['media'].'{'.$importContent.'}';
+				}
+
+				// add to replacement array
+				$search[] = $match[0];
+				$replace[] = $importContent;
+			}
+		}
+
+		// replace the import statements
+		$content = str_replace($search, $replace, $content);
+
+		return $content;
+	}
+
+	/**
+	 * Import files into the CSS, base64-ized.
+	 *
+	 * @url(image.jpg) images will be loaded and their content merged into the
+	 * original file, to save HTTP requests.
+	 *
+	 * @param string $source  The file to import files for.
+	 * @param string $content The CSS content to import files for.
+	 *
+	 * @return string
+	 */
+	protected function importFiles($source, $content)
+	{
+		$extensions = array_keys($this->importExtensions);
+		$regex = '/url\((["\']?)((?!["\']?data:).*?\.('.implode('|', $extensions).'))\\1\)/i';
+		if ($extensions && preg_match_all($regex, $content, $matches, PREG_SET_ORDER)) {
+			$search = array();
+			$replace = array();
+
+			// loop the matches
+			foreach ($matches as $match) {
+				// get the path for the file that will be imported
+				$path = $match[2];
+				$path = dirname($source).'/'.$path;
+				$extension = $match[3];
+
+				// only replace the import with the content if we're able to get
+				// the content of the file, and it's relatively small
+				if ($this->canImportFile($path) && $this->canImportBySize($path)) {
+					// grab content && base64-ize
+					$importContent = $this->load($path);
+					$importContent = base64_encode($importContent);
+
+					// build replacement
+					$search[] = $match[0];
+					$replace[] = 'url('.$this->importExtensions[$extension].';base64,'.$importContent.')';
+				}
+			}
+
+			// replace the import statements
+			$content = str_replace($search, $replace, $content);
+		}
+
+		return $content;
+	}
+
+	/**
+	 * Minify the data.
+	 * Perform CSS optimizations.
+	 *
+	 * @param string[optional] $path    Path to write the data to.
+	 * @param string[]         $parents Parent paths, for circular reference checks.
+	 *
+	 * @return string The minified data.
+	 */
+	public function execute($path = null, $parents = array())
+	{
+		$content = '';
+
+		// loop css data (raw data and files)
+		foreach ($this->data as $source => $css) {
+			/*
              * Let's first take out strings & comments, since we can't just remove
              * whitespace anywhere. If whitespace occurs inside a string, we should
              * leave it alone. E.g.:
              * p { content: "a   test" }
              */
-            $this->extractStrings();
-            $this->stripComments();
-            $css = $this->replace($css);
+			$this->extractStrings();
+			$this->stripComments();
+			$css = $this->replace($css);
 
-            $css = $this->stripWhitespace($css);
-            $css = $this->shortenHex($css);
-            $css = $this->shortenZeroes($css);
-            $css = $this->stripEmptyTags($css);
+			$css = $this->stripWhitespace($css);
+			$css = $this->shortenHex($css);
+			$css = $this->shortenZeroes($css);
+			$css = $this->stripEmptyTags($css);
 
-            // restore the string we've extracted earlier
-            $css = $this->restoreExtractedData($css);
+			// restore the string we've extracted earlier
+			$css = $this->restoreExtractedData($css);
 
-            $source = is_int($source) ? '' : $source;
-            $parents = $source ? array_merge($parents, array($source)) : $parents;
-            $css = $this->combineImports($source, $css, $parents);
-            $css = $this->importFiles($source, $css);
+			$source = is_int($source) ? '' : $source;
+			$parents = $source ? array_merge($parents, array($source)) : $parents;
+			$css = $this->combineImports($source, $css, $parents);
+			$css = $this->importFiles($source, $css);
 
-            /*
+			/*
              * If we'll save to a new path, we'll have to fix the relative paths
              * to be relative no longer to the source file, but to the new path.
              * If we don't write to a file, fall back to same path so no
              * conversion happens (because we still want it to go through most
              * of the move code...)
              */
-            $converter = new Converter($source, $path ?: $source);
-            $css = $this->move($converter, $css);
-
-            // combine css
-            $content .= $css;
-        }
-
-        $content = $this->moveImportsToTop($content);
-
-        return $content;
-    }
-
-    /**
-     * Moving a css file should update all relative urls.
-     * Relative references (e.g. ../images/image.gif) in a certain css file,
-     * will have to be updated when a file is being saved at another location
-     * (e.g. ../../images/image.gif, if the new CSS file is 1 folder deeper).
-     *
-     * @param Converter $converter Relative path converter
-     * @param string    $content   The CSS content to update relative urls for.
-     *
-     * @return string
-     */
-    protected function move(Converter $converter, $content)
-    {
-        /*
+			$converter = new Converter($source, $path ?: $source);
+			$css = $this->move($converter, $css);
+
+			// combine css
+			$content .= $css;
+		}
+
+		$content = $this->moveImportsToTop($content);
+
+		return $content;
+	}
+
+	/**
+	 * Moving a css file should update all relative urls.
+	 * Relative references (e.g. ../images/image.gif) in a certain css file,
+	 * will have to be updated when a file is being saved at another location
+	 * (e.g. ../../images/image.gif, if the new CSS file is 1 folder deeper).
+	 *
+	 * @param Converter $converter Relative path converter
+	 * @param string    $content   The CSS content to update relative urls for.
+	 *
+	 * @return string
+	 */
+	protected function move(Converter $converter, $content)
+	{
+		/*
          * Relative path references will usually be enclosed by url(). @import
          * is an exception, where url() is not necessary around the path (but is
          * allowed).
@@ -368,9 +368,9 @@ 
          * recent PCRE version. That's why I'm doing 2 separate regular
          * expressions & combining the matches after executing of both.
          */
-        $relativeRegexes = array(
-            // url(xxx)
-            '/
+		$relativeRegexes = array(
+			// url(xxx)
+			'/
             # open url()
             url\(
 
@@ -402,8 +402,8 @@ 
 
             /ix',
 
-            // @import "xxx"
-            '/
+			// @import "xxx"
+			'/
             # import statement
             @import
 
@@ -432,167 +432,167 @@ 
                 (?P=quotes)
 
             /ix',
-        );
-
-        // find all relative urls in css
-        $matches = array();
-        foreach ($relativeRegexes as $relativeRegex) {
-            if (preg_match_all($relativeRegex, $content, $regexMatches, PREG_SET_ORDER)) {
-                $matches = array_merge($matches, $regexMatches);
-            }
-        }
-
-        $search = array();
-        $replace = array();
-
-        // loop all urls
-        foreach ($matches as $match) {
-            // determine if it's a url() or an @import match
-            $type = (strpos($match[0], '@import') === 0 ? 'import' : 'url');
-
-            // attempting to interpret GET-params makes no sense, so let's discard them for awhile
-            $params = strrchr($match['path'], '?');
-            $url = $params ? substr($match['path'], 0, -strlen($params)) : $match['path'];
-
-            // fix relative url
-            $url = $converter->convert($url);
-
-            // now that the path has been converted, re-apply GET-params
-            $url .= $params;
-
-            // build replacement
-            $search[] = $match[0];
-            if ($type == 'url') {
-                $replace[] = 'url('.$url.')';
-            } elseif ($type == 'import') {
-                $replace[] = '@import "'.$url.'"';
-            }
-        }
-
-        // replace urls
-        $content = str_replace($search, $replace, $content);
-
-        return $content;
-    }
-
-    /**
-     * Shorthand hex color codes.
-     * #FF0000 -> #F00.
-     *
-     * @param string $content The CSS content to shorten the hex color codes for.
-     *
-     * @return string
-     */
-    protected function shortenHex($content)
-    {
-        $content = preg_replace('/(?<![\'"])#([0-9a-z])\\1([0-9a-z])\\2([0-9a-z])\\3(?![\'"])/i', '#$1$2$3', $content);
-
-        return $content;
-    }
-
-    /**
-     * Shorthand 0 values to plain 0, instead of e.g. -0em.
-     *
-     * @param string $content The CSS content to shorten the zero values for.
-     *
-     * @return string
-     */
-    protected function shortenZeroes($content)
-    {
-        // reusable bits of code throughout these regexes:
-        // before & after are used to make sure we don't match lose unintended
-        // 0-like values (e.g. in #000, or in http://url/1.0)
-        // units can be stripped from 0 values, or used to recognize non 0
-        // values (where wa may be able to strip a .0 suffix)
-        $before = '(?<=[:(, ])';
-        $after = '(?=[ ,);}])';
-        $units = '(em|ex|%|px|cm|mm|in|pt|pc|ch|rem|vh|vw|vmin|vmax|vm)';
-
-        // strip units after zeroes (0px -> 0)
-        // NOTE: it should be safe to remove all units for a 0 value, but in
-        // practice, Webkit (especially Safari) seems to stumble over at least
-        // 0%, potentially other units as well. Only stripping 'px' for now.
-        // @see https://github.com/matthiasmullie/minify/issues/60
-        $content = preg_replace('/'.$before.'(-?0*(\.0+)?)(?<=0)px'.$after.'/', '\\1', $content);
-
-        // strip 0-digits (.0 -> 0)
-        $content = preg_replace('/'.$before.'\.0+'.$units.'?'.$after.'/', '0\\1', $content);
-        // strip trailing 0: 50.10 -> 50.1, 50.10px -> 50.1px
-        $content = preg_replace('/'.$before.'(-?[0-9]+\.[0-9]+)0+'.$units.'?'.$after.'/', '\\1\\2', $content);
-        // strip trailing 0: 50.00 -> 50, 50.00px -> 50px
-        $content = preg_replace('/'.$before.'(-?[0-9]+)\.0+'.$units.'?'.$after.'/', '\\1\\2', $content);
-        // strip leading 0: 0.1 -> .1, 01.1 -> 1.1
-        $content = preg_replace('/'.$before.'(-?)0+([0-9]*\.[0-9]+)'.$units.'?'.$after.'/', '\\1\\2\\3', $content);
-
-        // strip negative zeroes (-0 -> 0) & truncate zeroes (00 -> 0)
-        $content = preg_replace('/'.$before.'-?0+'.$units.'?'.$after.'/', '0\\1', $content);
-
-        return $content;
-    }
-
-    /**
-     * Strip comments from source code.
-     *
-     * @param string $content
-     *
-     * @return string
-     */
-    protected function stripEmptyTags($content)
-    {
-        return preg_replace('/(^|\})[^\{\}]+\{\s*\}/', '\\1', $content);
-    }
-
-    /**
-     * Strip comments from source code.
-     */
-    protected function stripComments()
-    {
-        $this->registerPattern('/\/\*.*?\*\//s', '');
-    }
-
-    /**
-     * Strip whitespace.
-     *
-     * @param string $content The CSS content to strip the whitespace for.
-     *
-     * @return string
-     */
-    protected function stripWhitespace($content)
-    {
-        // remove leading & trailing whitespace
-        $content = preg_replace('/^\s*/m', '', $content);
-        $content = preg_replace('/\s*$/m', '', $content);
-
-        // replace newlines with a single space
-        $content = preg_replace('/\s+/', ' ', $content);
-
-        // remove whitespace around meta characters
-        // inspired by stackoverflow.com/questions/15195750/minify-compress-css-with-regex
-        $content = preg_replace('/\s*([\*$~^|]?+=|[{};,>~]|!important\b)\s*/', '$1', $content);
-        $content = preg_replace('/([\[(:])\s+/', '$1', $content);
-        $content = preg_replace('/\s+([\]\)])/', '$1', $content);
-        $content = preg_replace('/\s+(:)(?![^\}]*\{)/', '$1', $content);
-
-        // whitespace around + and - can only be stripped in selectors, like
-        // :nth-child(3+2n), not in things like calc(3px + 2px) or shorthands
-        // like 3px -2px
-        $content = preg_replace('/\s*([+-])\s*(?=[^}]*{)/', '$1', $content);
-
-        // remove semicolon/whitespace followed by closing bracket
-        $content = str_replace(';}', '}', $content);
-
-        return trim($content);
-    }
-
-    /**
-     * Check if file is small enough to be imported.
-     *
-     * @param string $path The path to the file.
-     *
-     * @return bool
-     */
-    protected function canImportBySize($path)
-    {
-        return ($size = @filesize($path)) && $size <= $this->maxImportSize * 1024;
-    }
+		);
+
+		// find all relative urls in css
+		$matches = array();
+		foreach ($relativeRegexes as $relativeRegex) {
+			if (preg_match_all($relativeRegex, $content, $regexMatches, PREG_SET_ORDER)) {
+				$matches = array_merge($matches, $regexMatches);
+			}
+		}
+
+		$search = array();
+		$replace = array();
+
+		// loop all urls
+		foreach ($matches as $match) {
+			// determine if it's a url() or an @import match
+			$type = (strpos($match[0], '@import') === 0 ? 'import' : 'url');
+
+			// attempting to interpret GET-params makes no sense, so let's discard them for awhile
+			$params = strrchr($match['path'], '?');
+			$url = $params ? substr($match['path'], 0, -strlen($params)) : $match['path'];
+
+			// fix relative url
+			$url = $converter->convert($url);
+
+			// now that the path has been converted, re-apply GET-params
+			$url .= $params;
+
+			// build replacement
+			$search[] = $match[0];
+			if ($type == 'url') {
+				$replace[] = 'url('.$url.')';
+			} elseif ($type == 'import') {
+				$replace[] = '@import "'.$url.'"';
+			}
+		}
+
+		// replace urls
+		$content = str_replace($search, $replace, $content);
+
+		return $content;
+	}
+
+	/**
+	 * Shorthand hex color codes.
+	 * #FF0000 -> #F00.
+	 *
+	 * @param string $content The CSS content to shorten the hex color codes for.
+	 *
+	 * @return string
+	 */
+	protected function shortenHex($content)
+	{
+		$content = preg_replace('/(?<![\'"])#([0-9a-z])\\1([0-9a-z])\\2([0-9a-z])\\3(?![\'"])/i', '#$1$2$3', $content);
+
+		return $content;
+	}
+
+	/**
+	 * Shorthand 0 values to plain 0, instead of e.g. -0em.
+	 *
+	 * @param string $content The CSS content to shorten the zero values for.
+	 *
+	 * @return string
+	 */
+	protected function shortenZeroes($content)
+	{
+		// reusable bits of code throughout these regexes:
+		// before & after are used to make sure we don't match lose unintended
+		// 0-like values (e.g. in #000, or in http://url/1.0)
+		// units can be stripped from 0 values, or used to recognize non 0
+		// values (where wa may be able to strip a .0 suffix)
+		$before = '(?<=[:(, ])';
+		$after = '(?=[ ,);}])';
+		$units = '(em|ex|%|px|cm|mm|in|pt|pc|ch|rem|vh|vw|vmin|vmax|vm)';
+
+		// strip units after zeroes (0px -> 0)
+		// NOTE: it should be safe to remove all units for a 0 value, but in
+		// practice, Webkit (especially Safari) seems to stumble over at least
+		// 0%, potentially other units as well. Only stripping 'px' for now.
+		// @see https://github.com/matthiasmullie/minify/issues/60
+		$content = preg_replace('/'.$before.'(-?0*(\.0+)?)(?<=0)px'.$after.'/', '\\1', $content);
+
+		// strip 0-digits (.0 -> 0)
+		$content = preg_replace('/'.$before.'\.0+'.$units.'?'.$after.'/', '0\\1', $content);
+		// strip trailing 0: 50.10 -> 50.1, 50.10px -> 50.1px
+		$content = preg_replace('/'.$before.'(-?[0-9]+\.[0-9]+)0+'.$units.'?'.$after.'/', '\\1\\2', $content);
+		// strip trailing 0: 50.00 -> 50, 50.00px -> 50px
+		$content = preg_replace('/'.$before.'(-?[0-9]+)\.0+'.$units.'?'.$after.'/', '\\1\\2', $content);
+		// strip leading 0: 0.1 -> .1, 01.1 -> 1.1
+		$content = preg_replace('/'.$before.'(-?)0+([0-9]*\.[0-9]+)'.$units.'?'.$after.'/', '\\1\\2\\3', $content);
+
+		// strip negative zeroes (-0 -> 0) & truncate zeroes (00 -> 0)
+		$content = preg_replace('/'.$before.'-?0+'.$units.'?'.$after.'/', '0\\1', $content);
+
+		return $content;
+	}
+
+	/**
+	 * Strip comments from source code.
+	 *
+	 * @param string $content
+	 *
+	 * @return string
+	 */
+	protected function stripEmptyTags($content)
+	{
+		return preg_replace('/(^|\})[^\{\}]+\{\s*\}/', '\\1', $content);
+	}
+
+	/**
+	 * Strip comments from source code.
+	 */
+	protected function stripComments()
+	{
+		$this->registerPattern('/\/\*.*?\*\//s', '');
+	}
+
+	/**
+	 * Strip whitespace.
+	 *
+	 * @param string $content The CSS content to strip the whitespace for.
+	 *
+	 * @return string
+	 */
+	protected function stripWhitespace($content)
+	{
+		// remove leading & trailing whitespace
+		$content = preg_replace('/^\s*/m', '', $content);
+		$content = preg_replace('/\s*$/m', '', $content);
+
+		// replace newlines with a single space
+		$content = preg_replace('/\s+/', ' ', $content);
+
+		// remove whitespace around meta characters
+		// inspired by stackoverflow.com/questions/15195750/minify-compress-css-with-regex
+		$content = preg_replace('/\s*([\*$~^|]?+=|[{};,>~]|!important\b)\s*/', '$1', $content);
+		$content = preg_replace('/([\[(:])\s+/', '$1', $content);
+		$content = preg_replace('/\s+([\]\)])/', '$1', $content);
+		$content = preg_replace('/\s+(:)(?![^\}]*\{)/', '$1', $content);
+
+		// whitespace around + and - can only be stripped in selectors, like
+		// :nth-child(3+2n), not in things like calc(3px + 2px) or shorthands
+		// like 3px -2px
+		$content = preg_replace('/\s*([+-])\s*(?=[^}]*{)/', '$1', $content);
+
+		// remove semicolon/whitespace followed by closing bracket
+		$content = str_replace(';}', '}', $content);
+
+		return trim($content);
+	}
+
+	/**
+	 * Check if file is small enough to be imported.
+	 *
+	 * @param string $path The path to the file.
+	 *
+	 * @return bool
+	 */
+	protected function canImportBySize($path)
+	{
+		return ($size = @filesize($path)) && $size <= $this->maxImportSize * 1024;
+	}
 }

Sources/minify/src/Minify.php

Indentation +383 added lines, -383 removed lines

@@ -16,326 +16,326 @@ 
  */
 abstract class Minify
 {
-    /**
-     * The data to be minified.
-     *
-     * @var string[]
-     */
-    protected $data = array();
-
-    /**
-     * Array of patterns to match.
-     *
-     * @var string[]
-     */
-    protected $patterns = array();
-
-    /**
-     * This array will hold content of strings and regular expressions that have
-     * been extracted from the JS source code, so we can reliably match "code",
-     * without having to worry about potential "code-like" characters inside.
-     *
-     * @var string[]
-     */
-    public $extracted = array();
-
-    /**
-     * Init the minify class - optionally, code may be passed along already.
-     */
-    public function __construct(/* $data = null, ... */)
-    {
-        // it's possible to add the source through the constructor as well ;)
-        if (func_num_args()) {
-            call_user_func_array(array($this, 'add'), func_get_args());
-        }
-    }
-
-    /**
-     * Add a file or straight-up code to be minified.
-     *
-     * @param string $data
-     */
-    public function add($data /* $data = null, ... */)
-    {
-        // bogus "usage" of parameter $data: scrutinizer warns this variable is
-        // not used (we're using func_get_args instead to support overloading),
-        // but it still needs to be defined because it makes no sense to have
-        // this function without argument :)
-        $args = array($data) + func_get_args();
-
-        // this method can be overloaded
-        foreach ($args as $data) {
-            // redefine var
-            $data = (string) $data;
-
-            // load data
-            $value = $this->load($data);
-            $key = ($data != $value) ? $data : count($this->data);
-
-            // store data
-            $this->data[$key] = $value;
-        }
-    }
-
-    /**
-     * Minify the data & (optionally) saves it to a file.
-     *
-     * @param string[optional] $path Path to write the data to.
-     *
-     * @return string The minified data.
-     */
-    public function minify($path = null)
-    {
-        $content = $this->execute($path);
-
-        // save to path
-        if ($path !== null) {
-            $this->save($content, $path);
-        }
-
-        return $content;
-    }
-
-    /**
-     * Minify & gzip the data & (optionally) saves it to a file.
-     *
-     * @param string[optional] $path  Path to write the data to.
-     * @param int[optional]    $level Compression level, from 0 to 9.
-     *
-     * @return string The minified & gzipped data.
-     */
-    public function gzip($path = null, $level = 9)
-    {
-        $content = $this->execute($path);
-        $content = gzencode($content, $level, FORCE_GZIP);
-
-        // save to path
-        if ($path !== null) {
-            $this->save($content, $path);
-        }
-
-        return $content;
-    }
-
-    /**
-     * Minify the data & write it to a CacheItemInterface object.
-     *
-     * @param CacheItemInterface $item Cache item to write the data to.
-     *
-     * @return CacheItemInterface Cache item with the minifier data.
-     */
-    public function cache(CacheItemInterface $item)
-    {
-        $content = $this->execute();
-        $item->set($content);
-
-        return $item;
-    }
-
-    /**
-     * Minify the data.
-     *
-     * @param string[optional] $path Path to write the data to.
-     *
-     * @return string The minified data.
-     */
-    abstract public function execute($path = null);
-
-    /**
-     * Load data.
-     *
-     * @param string $data Either a path to a file or the content itself.
-     *
-     * @return string
-     */
-    protected function load($data)
-    {
-        // check if the data is a file
-        if ($this->canImportFile($data)) {
-            $data = file_get_contents($data);
-
-            // strip BOM, if any
-            if (substr($data, 0, 3) == "\xef\xbb\xbf") {
-                $data = substr($data, 3);
-            }
-        }
-
-        return $data;
-    }
-
-    /**
-     * Save to file.
-     *
-     * @param string $content The minified data.
-     * @param string $path    The path to save the minified data to.
-     *
-     * @throws IOException
-     */
-    protected function save($content, $path)
-    {
-        $handler = $this->openFileForWriting($path);
-
-        $this->writeToFile($handler, $content);
-
-        @fclose($handler);
-    }
-
-    /**
-     * Register a pattern to execute against the source content.
-     *
-     * @param string          $pattern     PCRE pattern.
-     * @param string|callable $replacement Replacement value for matched pattern.
-     */
-    protected function registerPattern($pattern, $replacement = '')
-    {
-        // study the pattern, we'll execute it more than once
-        $pattern .= 'S';
-
-        $this->patterns[] = array($pattern, $replacement);
-    }
-
-    /**
-     * We can't "just" run some regular expressions against JavaScript: it's a
-     * complex language. E.g. having an occurrence of // xyz would be a comment,
-     * unless it's used within a string. Of you could have something that looks
-     * like a 'string', but inside a comment.
-     * The only way to accurately replace these pieces is to traverse the JS one
-     * character at a time and try to find whatever starts first.
-     *
-     * @param string $content The content to replace patterns in.
-     *
-     * @return string The (manipulated) content.
-     */
-    protected function replace($content)
-    {
-        $processed = '';
-        $positions = array_fill(0, count($this->patterns), -1);
-        $matches = array();
-
-        while ($content) {
-            // find first match for all patterns
-            foreach ($this->patterns as $i => $pattern) {
-                list($pattern, $replacement) = $pattern;
-
-                // no need to re-run matches that are still in the part of the
-                // content that hasn't been processed
-                if ($positions[$i] >= 0) {
-                    continue;
-                }
-
-                $match = null;
-                if (preg_match($pattern, $content, $match)) {
-                    $matches[$i] = $match;
-
-                    // we'll store the match position as well; that way, we
-                    // don't have to redo all preg_matches after changing only
-                    // the first (we'll still know where those others are)
-                    $positions[$i] = strpos($content, $match[0]);
-                } else {
-                    // if the pattern couldn't be matched, there's no point in
-                    // executing it again in later runs on this same content;
-                    // ignore this one until we reach end of content
-                    unset($matches[$i]);
-                    $positions[$i] = strlen($content);
-                }
-            }
-
-            // no more matches to find: everything's been processed, break out
-            if (!$matches) {
-                $processed .= $content;
-                break;
-            }
-
-            // see which of the patterns actually found the first thing (we'll
-            // only want to execute that one, since we're unsure if what the
-            // other found was not inside what the first found)
-            $discardLength = min($positions);
-            $firstPattern = array_search($discardLength, $positions);
-            $match = $matches[$firstPattern][0];
-
-            // execute the pattern that matches earliest in the content string
-            list($pattern, $replacement) = $this->patterns[$firstPattern];
-            $replacement = $this->replacePattern($pattern, $replacement, $content);
-
-            // figure out which part of the string was unmatched; that's the
-            // part we'll execute the patterns on again next
-            $content = substr($content, $discardLength);
-            $unmatched = (string) substr($content, strpos($content, $match) + strlen($match));
-
-            // move the replaced part to $processed and prepare $content to
-            // again match batch of patterns against
-            $processed .= substr($replacement, 0, strlen($replacement) - strlen($unmatched));
-            $content = $unmatched;
-
-            // first match has been replaced & that content is to be left alone,
-            // the next matches will start after this replacement, so we should
-            // fix their offsets
-            foreach ($positions as $i => $position) {
-                $positions[$i] -= $discardLength + strlen($match);
-            }
-        }
-
-        return $processed;
-    }
-
-    /**
-     * This is where a pattern is matched against $content and the matches
-     * are replaced by their respective value.
-     * This function will be called plenty of times, where $content will always
-     * move up 1 character.
-     *
-     * @param string          $pattern     Pattern to match.
-     * @param string|callable $replacement Replacement value.
-     * @param string          $content     Content to match pattern against.
-     *
-     * @return string
-     */
-    protected function replacePattern($pattern, $replacement, $content)
-    {
-        if (is_callable($replacement)) {
-            return preg_replace_callback($pattern, $replacement, $content, 1, $count);
-        } else {
-            return preg_replace($pattern, $replacement, $content, 1, $count);
-        }
-    }
-
-    /**
-     * Strings are a pattern we need to match, in order to ignore potential
-     * code-like content inside them, but we just want all of the string
-     * content to remain untouched.
-     *
-     * This method will replace all string content with simple STRING#
-     * placeholder text, so we've rid all strings from characters that may be
-     * misinterpreted. Original string content will be saved in $this->extracted
-     * and after doing all other minifying, we can restore the original content
-     * via restoreStrings().
-     *
-     * @param string[optional] $chars
-     */
-    protected function extractStrings($chars = '\'"')
-    {
-        // PHP only supports $this inside anonymous functions since 5.4
-        $minifier = $this;
-        $callback = function ($match) use ($minifier) {
-            // check the second index here, because the first always contains a quote
-            if (!$match[2]) {
-                /*
+	/**
+	 * The data to be minified.
+	 *
+	 * @var string[]
+	 */
+	protected $data = array();
+
+	/**
+	 * Array of patterns to match.
+	 *
+	 * @var string[]
+	 */
+	protected $patterns = array();
+
+	/**
+	 * This array will hold content of strings and regular expressions that have
+	 * been extracted from the JS source code, so we can reliably match "code",
+	 * without having to worry about potential "code-like" characters inside.
+	 *
+	 * @var string[]
+	 */
+	public $extracted = array();
+
+	/**
+	 * Init the minify class - optionally, code may be passed along already.
+	 */
+	public function __construct(/* $data = null, ... */)
+	{
+		// it's possible to add the source through the constructor as well ;)
+		if (func_num_args()) {
+			call_user_func_array(array($this, 'add'), func_get_args());
+		}
+	}
+
+	/**
+	 * Add a file or straight-up code to be minified.
+	 *
+	 * @param string $data
+	 */
+	public function add($data /* $data = null, ... */)
+	{
+		// bogus "usage" of parameter $data: scrutinizer warns this variable is
+		// not used (we're using func_get_args instead to support overloading),
+		// but it still needs to be defined because it makes no sense to have
+		// this function without argument :)
+		$args = array($data) + func_get_args();
+
+		// this method can be overloaded
+		foreach ($args as $data) {
+			// redefine var
+			$data = (string) $data;
+
+			// load data
+			$value = $this->load($data);
+			$key = ($data != $value) ? $data : count($this->data);
+
+			// store data
+			$this->data[$key] = $value;
+		}
+	}
+
+	/**
+	 * Minify the data & (optionally) saves it to a file.
+	 *
+	 * @param string[optional] $path Path to write the data to.
+	 *
+	 * @return string The minified data.
+	 */
+	public function minify($path = null)
+	{
+		$content = $this->execute($path);
+
+		// save to path
+		if ($path !== null) {
+			$this->save($content, $path);
+		}
+
+		return $content;
+	}
+
+	/**
+	 * Minify & gzip the data & (optionally) saves it to a file.
+	 *
+	 * @param string[optional] $path  Path to write the data to.
+	 * @param int[optional]    $level Compression level, from 0 to 9.
+	 *
+	 * @return string The minified & gzipped data.
+	 */
+	public function gzip($path = null, $level = 9)
+	{
+		$content = $this->execute($path);
+		$content = gzencode($content, $level, FORCE_GZIP);
+
+		// save to path
+		if ($path !== null) {
+			$this->save($content, $path);
+		}
+
+		return $content;
+	}
+
+	/**
+	 * Minify the data & write it to a CacheItemInterface object.
+	 *
+	 * @param CacheItemInterface $item Cache item to write the data to.
+	 *
+	 * @return CacheItemInterface Cache item with the minifier data.
+	 */
+	public function cache(CacheItemInterface $item)
+	{
+		$content = $this->execute();
+		$item->set($content);
+
+		return $item;
+	}
+
+	/**
+	 * Minify the data.
+	 *
+	 * @param string[optional] $path Path to write the data to.
+	 *
+	 * @return string The minified data.
+	 */
+	abstract public function execute($path = null);
+
+	/**
+	 * Load data.
+	 *
+	 * @param string $data Either a path to a file or the content itself.
+	 *
+	 * @return string
+	 */
+	protected function load($data)
+	{
+		// check if the data is a file
+		if ($this->canImportFile($data)) {
+			$data = file_get_contents($data);
+
+			// strip BOM, if any
+			if (substr($data, 0, 3) == "\xef\xbb\xbf") {
+				$data = substr($data, 3);
+			}
+		}
+
+		return $data;
+	}
+
+	/**
+	 * Save to file.
+	 *
+	 * @param string $content The minified data.
+	 * @param string $path    The path to save the minified data to.
+	 *
+	 * @throws IOException
+	 */
+	protected function save($content, $path)
+	{
+		$handler = $this->openFileForWriting($path);
+
+		$this->writeToFile($handler, $content);
+
+		@fclose($handler);
+	}
+
+	/**
+	 * Register a pattern to execute against the source content.
+	 *
+	 * @param string          $pattern     PCRE pattern.
+	 * @param string|callable $replacement Replacement value for matched pattern.
+	 */
+	protected function registerPattern($pattern, $replacement = '')
+	{
+		// study the pattern, we'll execute it more than once
+		$pattern .= 'S';
+
+		$this->patterns[] = array($pattern, $replacement);
+	}
+
+	/**
+	 * We can't "just" run some regular expressions against JavaScript: it's a
+	 * complex language. E.g. having an occurrence of // xyz would be a comment,
+	 * unless it's used within a string. Of you could have something that looks
+	 * like a 'string', but inside a comment.
+	 * The only way to accurately replace these pieces is to traverse the JS one
+	 * character at a time and try to find whatever starts first.
+	 *
+	 * @param string $content The content to replace patterns in.
+	 *
+	 * @return string The (manipulated) content.
+	 */
+	protected function replace($content)
+	{
+		$processed = '';
+		$positions = array_fill(0, count($this->patterns), -1);
+		$matches = array();
+
+		while ($content) {
+			// find first match for all patterns
+			foreach ($this->patterns as $i => $pattern) {
+				list($pattern, $replacement) = $pattern;
+
+				// no need to re-run matches that are still in the part of the
+				// content that hasn't been processed
+				if ($positions[$i] >= 0) {
+					continue;
+				}
+
+				$match = null;
+				if (preg_match($pattern, $content, $match)) {
+					$matches[$i] = $match;
+
+					// we'll store the match position as well; that way, we
+					// don't have to redo all preg_matches after changing only
+					// the first (we'll still know where those others are)
+					$positions[$i] = strpos($content, $match[0]);
+				} else {
+					// if the pattern couldn't be matched, there's no point in
+					// executing it again in later runs on this same content;
+					// ignore this one until we reach end of content
+					unset($matches[$i]);
+					$positions[$i] = strlen($content);
+				}
+			}
+
+			// no more matches to find: everything's been processed, break out
+			if (!$matches) {
+				$processed .= $content;
+				break;
+			}
+
+			// see which of the patterns actually found the first thing (we'll
+			// only want to execute that one, since we're unsure if what the
+			// other found was not inside what the first found)
+			$discardLength = min($positions);
+			$firstPattern = array_search($discardLength, $positions);
+			$match = $matches[$firstPattern][0];
+
+			// execute the pattern that matches earliest in the content string
+			list($pattern, $replacement) = $this->patterns[$firstPattern];
+			$replacement = $this->replacePattern($pattern, $replacement, $content);
+
+			// figure out which part of the string was unmatched; that's the
+			// part we'll execute the patterns on again next
+			$content = substr($content, $discardLength);
+			$unmatched = (string) substr($content, strpos($content, $match) + strlen($match));
+
+			// move the replaced part to $processed and prepare $content to
+			// again match batch of patterns against
+			$processed .= substr($replacement, 0, strlen($replacement) - strlen($unmatched));
+			$content = $unmatched;
+
+			// first match has been replaced & that content is to be left alone,
+			// the next matches will start after this replacement, so we should
+			// fix their offsets
+			foreach ($positions as $i => $position) {
+				$positions[$i] -= $discardLength + strlen($match);
+			}
+		}
+
+		return $processed;
+	}
+
+	/**
+	 * This is where a pattern is matched against $content and the matches
+	 * are replaced by their respective value.
+	 * This function will be called plenty of times, where $content will always
+	 * move up 1 character.
+	 *
+	 * @param string          $pattern     Pattern to match.
+	 * @param string|callable $replacement Replacement value.
+	 * @param string          $content     Content to match pattern against.
+	 *
+	 * @return string
+	 */
+	protected function replacePattern($pattern, $replacement, $content)
+	{
+		if (is_callable($replacement)) {
+			return preg_replace_callback($pattern, $replacement, $content, 1, $count);
+		} else {
+			return preg_replace($pattern, $replacement, $content, 1, $count);
+		}
+	}
+
+	/**
+	 * Strings are a pattern we need to match, in order to ignore potential
+	 * code-like content inside them, but we just want all of the string
+	 * content to remain untouched.
+	 *
+	 * This method will replace all string content with simple STRING#
+	 * placeholder text, so we've rid all strings from characters that may be
+	 * misinterpreted. Original string content will be saved in $this->extracted
+	 * and after doing all other minifying, we can restore the original content
+	 * via restoreStrings().
+	 *
+	 * @param string[optional] $chars
+	 */
+	protected function extractStrings($chars = '\'"')
+	{
+		// PHP only supports $this inside anonymous functions since 5.4
+		$minifier = $this;
+		$callback = function ($match) use ($minifier) {
+			// check the second index here, because the first always contains a quote
+			if (!$match[2]) {
+				/*
                  * Empty strings need no placeholder; they can't be confused for
                  * anything else anyway.
                  * But we still needed to match them, for the extraction routine
                  * to skip over this particular string.
                  */
-                return $match[0];
-            }
+				return $match[0];
+			}
 
-            $count = count($minifier->extracted);
-            $placeholder = $match[1].$count.$match[1];
-            $minifier->extracted[$placeholder] = $match[1].$match[2].$match[1];
+			$count = count($minifier->extracted);
+			$placeholder = $match[1].$count.$match[1];
+			$minifier->extracted[$placeholder] = $match[1].$match[2].$match[1];
 
-            return $placeholder;
-        };
+			return $placeholder;
+		};
 
-        /*
+		/*
          * The \\ messiness explained:
          * * Don't count ' or " as end-of-string if it's escaped (has backslash
          * in front of it)
@@ -347,75 +347,75 @@ 
          * considered as escape-char (times 2) and to get it in the regex,
          * escaped (times 2)
          */
-        $this->registerPattern('/(['.$chars.'])(.*?(?<!\\\\)(\\\\\\\\)*+)\\1/s', $callback);
-    }
-
-    /**
-     * This method will restore all extracted data (strings, regexes) that were
-     * replaced with placeholder text in extract*(). The original content was
-     * saved in $this->extracted.
-     *
-     * @param string $content
-     *
-     * @return string
-     */
-    protected function restoreExtractedData($content)
-    {
-        if (!$this->extracted) {
-            // nothing was extracted, nothing to restore
-            return $content;
-        }
-
-        $content = strtr($content, $this->extracted);
-
-        $this->extracted = array();
-
-        return $content;
-    }
-
-    /**
-     * Check if the path is a regular file and can be read.
-     *
-     * @param string $path
-     *
-     * @return bool
-     */
-    protected function canImportFile($path)
-    {
-        return strlen($path) < PHP_MAXPATHLEN && is_file($path) && is_readable($path);
-    }
-
-    /**
-     * Attempts to open file specified by $path for writing.
-     *
-     * @param string $path The path to the file.
-     *
-     * @return resource Specifier for the target file.
-     *
-     * @throws IOException
-     */
-    protected function openFileForWriting($path)
-    {
-        if (($handler = @fopen($path, 'w')) === false) {
-            throw new IOException('The file "'.$path.'" could not be opened for writing. Check if PHP has enough permissions.');
-        }
-
-        return $handler;
-    }
-
-    /**
-     * Attempts to write $content to the file specified by $handler. $path is used for printing exceptions.
-     *
-     * @param resource $handler The resource to write to.
-     * @param string   $content The content to write.
-     * @param string   $path    The path to the file (for exception printing only).
-     *
-     * @throws IOException
-     */
-    protected function writeToFile($handler, $content, $path = '')
-    {
-        if (($result = @fwrite($handler, $content)) === false || ($result < strlen($content))) {
-            throw new IOException('The file "'.$path.'" could not be written to. Check your disk space and file permissions.');
-        }
-    }
+		$this->registerPattern('/(['.$chars.'])(.*?(?<!\\\\)(\\\\\\\\)*+)\\1/s', $callback);
+	}
+
+	/**
+	 * This method will restore all extracted data (strings, regexes) that were
+	 * replaced with placeholder text in extract*(). The original content was
+	 * saved in $this->extracted.
+	 *
+	 * @param string $content
+	 *
+	 * @return string
+	 */
+	protected function restoreExtractedData($content)
+	{
+		if (!$this->extracted) {
+			// nothing was extracted, nothing to restore
+			return $content;
+		}
+
+		$content = strtr($content, $this->extracted);
+
+		$this->extracted = array();
+
+		return $content;
+	}
+
+	/**
+	 * Check if the path is a regular file and can be read.
+	 *
+	 * @param string $path
+	 *
+	 * @return bool
+	 */
+	protected function canImportFile($path)
+	{
+		return strlen($path) < PHP_MAXPATHLEN && is_file($path) && is_readable($path);
+	}
+
+	/**
+	 * Attempts to open file specified by $path for writing.
+	 *
+	 * @param string $path The path to the file.
+	 *
+	 * @return resource Specifier for the target file.
+	 *
+	 * @throws IOException
+	 */
+	protected function openFileForWriting($path)
+	{
+		if (($handler = @fopen($path, 'w')) === false) {
+			throw new IOException('The file "'.$path.'" could not be opened for writing. Check if PHP has enough permissions.');
+		}
+
+		return $handler;
+	}
+
+	/**
+	 * Attempts to write $content to the file specified by $handler. $path is used for printing exceptions.
+	 *
+	 * @param resource $handler The resource to write to.
+	 * @param string   $content The content to write.
+	 * @param string   $path    The path to the file (for exception printing only).
+	 *
+	 * @throws IOException
+	 */
+	protected function writeToFile($handler, $content, $path = '')
+	{
+		if (($result = @fwrite($handler, $content)) === false || ($result < strlen($content))) {
+			throw new IOException('The file "'.$path.'" could not be written to. Check your disk space and file permissions.');
+		}
+	}
 }