From: Andrew Dolgov <fox@madoka.volgo-balt.ru>
Date: Mon, 18 Mar 2013 06:45:04 +0000 (+0400)
Subject: replace jsmin with jshrink
X-Git-Tag: 1.7.5~139
X-Git-Url: https://git.wh0rd.org/?a=commitdiff_plain;h=107997e6cb04f5daddb11e631b9866c385f2ca7d;p=tt-rss.git

replace jsmin with jshrink
---

diff --git a/index.php b/index.php
index 3d5b2cc4..49fcfdf9 100644
--- a/index.php
+++ b/index.php
@@ -85,19 +85,19 @@
 
 	<script type="text/javascript">
 	<?php
-		require 'lib/jsmin.php';
+		require 'lib/jshrink/Minifier.php';
 
 		global $pluginhost;
 
 		foreach ($pluginhost->get_plugins() as $n => $p) {
 			if (method_exists($p, "get_js")) {
-				echo JSMin::minify($p->get_js());
+				echo JShrink\Minifier::minify($p->get_js());
 			}
 		}
 
 		foreach (array("tt-rss", "functions", "feedlist", "viewfeed", "FeedTree") as $js) {
 			if (!isset($_GET['debug'])) {
-				echo JSMin::minify(file_get_contents("js/$js.js"));
+				echo JShrink\Minifier::minify(file_get_contents("js/$js.js"));
 			} else {
 				echo file_get_contents("js/$js.js");
 			}
diff --git a/lib/jshrink/LICENSE b/lib/jshrink/LICENSE
new file mode 100644
index 00000000..68caa37c
--- /dev/null
+++ b/lib/jshrink/LICENSE
@@ -0,0 +1,24 @@
+Copyright (c) 2009, Robert Hafner
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+    * Neither the name of the Stash Project nor the
+      names of its contributors may be used to endorse or promote products
+      derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL Robert Hafner BE LIABLE FOR ANY
+DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
\ No newline at end of file
diff --git a/lib/jshrink/Minifier.php b/lib/jshrink/Minifier.php
new file mode 100644
index 00000000..05054988
--- /dev/null
+++ b/lib/jshrink/Minifier.php
@@ -0,0 +1,470 @@
+<?php
+/**
+ * JShrink
+ *
+ * Copyright (c) 2009-2012, Robert Hafner <tedivm@tedivm.com>.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *   * Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in
+ *     the documentation and/or other materials provided with the
+ *     distribution.
+ *
+ *   * Neither the name of Robert Hafner nor the names of his
+ *     contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * @package    JShrink
+ * @author     Robert Hafner <tedivm@tedivm.com>
+ * @copyright  2009-2012 Robert Hafner <tedivm@tedivm.com>
+ * @license    http://www.opensource.org/licenses/bsd-license.php  BSD License
+ * @link       https://github.com/tedivm/JShrink
+ * @version    Release: 0.5.1
+ */
+
+ namespace JShrink;
+
+/**
+ * Minifier
+ *
+ * Usage - Minifier::minify($js);
+ * Usage - Minifier::minify($js, $options);
+ * Usage - Minifier::minify($js, array('flaggedComments' => false));
+ *
+ * @package	JShrink
+ * @author	Robert Hafner <tedivm@tedivm.com>
+ * @license	http://www.opensource.org/licenses/bsd-license.php  BSD License
+ */
+class Minifier
+{
+	/**
+	 * The input javascript to be minified.
+	 *
+	 * @var string
+	 */
+	protected $input;
+
+	/**
+	 * The location of the character (in the input string) that is next to be
+     * processed.
+	 *
+	 * @var int
+	 */
+	protected $index = 0;
+
+	/**
+	 * The first of the characters currently being looked at.
+	 *
+	 * @var string
+	 */
+	protected $a = '';
+
+
+	/**
+	 * The next character being looked at (after a);
+	 *
+	 * @var string
+	 */
+	protected $b = '';
+
+	/**
+	 * This character is only active when certain look ahead actions take place.
+	 *
+	 *  @var string
+	 */
+	protected $c;
+
+	/**
+	 * Contains the options for the current minification process.
+	 *
+	 * @var array
+	 */
+	protected $options;
+
+	/**
+	 * Contains the default options for minification. This array is merged with
+     * the one passed in by the user to create the request specific set of
+     * options (stored in the $options attribute).
+	 *
+	 * @var array
+	 */
+	static protected $defaultOptions = array('flaggedComments' => true);
+
+	/**
+	 * Contains a copy of the JShrink object used to run minification. This is
+     * only used internally, and is only stored for performance reasons. There
+     * is no internal data shared between minification requests.
+	 */
+	static protected $jshrink;
+
+	/**
+	 * Minifier::minify takes a string containing javascript and removes
+     * unneeded characters in order to shrink the code without altering it's
+     * functionality.
+	 */
+	static public function minify($js, $options = array())
+	{
+		try{
+			ob_start();
+			$currentOptions = array_merge(self::$defaultOptions, $options);
+
+			if(!isset(self::$jshrink))
+				self::$jshrink = new Minifier();
+
+			self::$jshrink->breakdownScript($js, $currentOptions);
+			return ob_get_clean();
+
+		}catch(Exception $e){
+			if(isset(self::$jshrink))
+				self::$jshrink->clean();
+
+			ob_end_clean();
+			throw $e;
+		}
+	}
+
+	/**
+	 * Processes a javascript string and outputs only the required characters,
+     * stripping out all unneeded characters.
+	 *
+	 * @param string $js The raw javascript to be minified
+	 * @param array $currentOptions Various runtime options in an associative array
+	 */
+	protected function breakdownScript($js, $currentOptions)
+	{
+		// reset work attributes in case this isn't the first run.
+		$this->clean();
+
+		$this->options = $currentOptions;
+
+		$js = str_replace("\r\n", "\n", $js);
+		$this->input = str_replace("\r", "\n", $js);
+
+
+		$this->a = $this->getReal();
+
+		// the only time the length can be higher than 1 is if a conditional
+        // comment needs to be displayed and the only time that can happen for
+        // $a is on the very first run
+		while(strlen($this->a) > 1)
+		{
+			echo $this->a;
+			$this->a = $this->getReal();
+		}
+
+		$this->b = $this->getReal();
+
+		while($this->a !== false && !is_null($this->a) && $this->a !== '')
+		{
+
+			// now we give $b the same check for conditional comments we gave $a
+            // before we began looping
+			if(strlen($this->b) > 1)
+			{
+				echo $this->a . $this->b;
+				$this->a = $this->getReal();
+				$this->b = $this->getReal();
+				continue;
+			}
+
+			switch($this->a)
+			{
+				// new lines
+				case "\n":
+					// if the next line is something that can't stand alone
+                    // preserve the newline
+					if(strpos('(-+{[@', $this->b) !== false)
+					{
+						echo $this->a;
+						$this->saveString();
+						break;
+					}
+
+					// if its a space we move down to the string test below
+					if($this->b === ' ')
+						break;
+
+					// otherwise we treat the newline like a space
+
+				case ' ':
+					if(self::isAlphaNumeric($this->b))
+						echo $this->a;
+
+					$this->saveString();
+					break;
+
+				default:
+					switch($this->b)
+					{
+						case "\n":
+							if(strpos('}])+-"\'', $this->a) !== false)
+							{
+								echo $this->a;
+								$this->saveString();
+								break;
+							}else{
+								if(self::isAlphaNumeric($this->a))
+								{
+									echo $this->a;
+									$this->saveString();
+								}
+							}
+							break;
+
+						case ' ':
+							if(!self::isAlphaNumeric($this->a))
+								break;
+
+						default:
+							// check for some regex that breaks stuff
+							if($this->a == '/' && ($this->b == '\'' || $this->b == '"'))
+							{
+								$this->saveRegex();
+								continue;
+							}
+
+							echo $this->a;
+							$this->saveString();
+							break;
+					}
+			}
+
+			// do reg check of doom
+			$this->b = $this->getReal();
+
+			if(($this->b == '/' && strpos('(,=:[!&|?', $this->a) !== false))
+				$this->saveRegex();
+		}
+		$this->clean();
+	}
+
+	/**
+	 * Returns the next string for processing based off of the current index.
+	 *
+	 * @return string
+	 */
+	protected function getChar()
+	{
+		if(isset($this->c))
+		{
+			$char = $this->c;
+			unset($this->c);
+		}else{
+			$tchar = substr($this->input, $this->index, 1);
+			if(isset($tchar) && $tchar !== false)
+			{
+				$char = $tchar;
+				$this->index++;
+			}else{
+				return false;
+			}
+		}
+
+		if($char !== "\n" && ord($char) < 32)
+			return ' ';
+
+		return $char;
+	}
+
+	/**
+	 * This function gets the next "real" character. It is essentially a wrapper
+     * around the getChar function that skips comments. This has significant
+     * performance benefits as the skipping is done using native functions (ie,
+     * c code) rather than in script php.
+	 *
+	 * @return string Next 'real' character to be processed.
+	 */
+	protected function getReal()
+	{
+		$startIndex = $this->index;
+		$char = $this->getChar();
+
+		if($char == '/')
+		{
+			$this->c = $this->getChar();
+
+			if($this->c == '/')
+			{
+				$thirdCommentString = substr($this->input, $this->index, 1);
+
+				// kill rest of line
+				$char = $this->getNext("\n");
+
+				if($thirdCommentString == '@')
+				{
+					$endPoint = ($this->index) - $startIndex;
+					unset($this->c);
+					$char = "\n" . substr($this->input, $startIndex, $endPoint);
+				}else{
+					$char = $this->getChar();
+					$char = $this->getChar();
+				}
+
+			}elseif($this->c == '*'){
+
+				$this->getChar(); // current C
+				$thirdCommentString = $this->getChar();
+
+				if($thirdCommentString == '@')
+				{
+					// conditional comment
+
+					// we're gonna back up a bit and and send the comment back,
+                    // where the first char will be echoed and the rest will be
+                    // treated like a string
+					$this->index = $this->index-2;
+					return '/';
+
+				}elseif($this->getNext('*/')){
+				// kill everything up to the next */
+
+					$this->getChar(); // get *
+					$this->getChar(); // get /
+
+					$char = $this->getChar(); // get next real character
+
+					// if YUI-style comments are enabled we reinsert it into the stream
+					if($this->options['flaggedComments'] && $thirdCommentString == '!')
+					{
+						$endPoint = ($this->index - 1) - $startIndex;
+						echo "\n" . substr($this->input, $startIndex, $endPoint) . "\n";
+					}
+
+				}else{
+					$char = false;
+				}
+
+				if($char === false)
+					throw new \RuntimeException('Stray comment. ' . $this->index);
+
+				// if we're here c is part of the comment and therefore tossed
+				if(isset($this->c))
+					unset($this->c);
+			}
+		}
+		return $char;
+	}
+
+	/**
+	 * Pushes the index ahead to the next instance of the supplied string. If it
+     * is found the first character of the string is returned.
+	 *
+	 * @return string|false Returns the first character of the string or false.
+	 */
+	protected function getNext($string)
+	{
+		$pos = strpos($this->input, $string, $this->index);
+
+		if($pos === false)
+			return false;
+
+		$this->index = $pos;
+		return substr($this->input, $this->index, 1);
+	}
+
+	/**
+	 * When a javascript string is detected this function crawls for the end of
+     * it and saves the whole string.
+	 *
+	 */
+	protected function saveString()
+	{
+		$this->a = $this->b;
+		if($this->a == "'" || $this->a == '"') // is the character a quote
+		{
+			// save literal string
+			$stringType = $this->a;
+
+			while(1)
+			{
+				echo $this->a;
+				$this->a = $this->getChar();
+
+				switch($this->a)
+				{
+					case $stringType:
+						break 2;
+
+					case "\n":
+						throw new \RuntimeException('Unclosed string. ' . $this->index);
+						break;
+
+					case '\\':
+						echo $this->a;
+						$this->a = $this->getChar();
+				}
+			}
+		}
+	}
+
+	/**
+	 * When a regular expression is detected this funcion crawls for the end of
+     * it and saves the whole regex.
+	 */
+	protected function saveRegex()
+	{
+		echo $this->a . $this->b;
+
+		while(($this->a = $this->getChar()) !== false)
+		{
+			if($this->a == '/')
+				break;
+
+			if($this->a == '\\')
+			{
+				echo $this->a;
+				$this->a = $this->getChar();
+			}
+
+			if($this->a == "\n")
+				throw new \RuntimeException('Stray regex pattern. ' . $this->index);
+
+			echo $this->a;
+		}
+		$this->b = $this->getReal();
+	}
+
+	/**
+	 * Resets attributes that do not need to be stored between requests so that
+     * the next request is ready to go.
+	 */
+	protected function clean()
+	{
+		unset($this->input);
+		$this->index = 0;
+		$this->a = $this->b = '';
+		unset($this->c);
+		unset($this->options);
+	}
+
+	/**
+	 * Checks to see if a character is alphanumeric.
+	 *
+	 * @return bool
+	 */
+	static protected function isAlphaNumeric($char)
+	{
+		return preg_match('/^[\w\$]$/', $char) === 1 || $char == '/';
+	}
+
+}
\ No newline at end of file
diff --git a/lib/jshrink/README.md b/lib/jshrink/README.md
new file mode 100644
index 00000000..4c024b5e
--- /dev/null
+++ b/lib/jshrink/README.md
@@ -0,0 +1,21 @@
+JShrink is a php class that minifies javascript so that it can be delivered to the client quicker. This code can be used by any product looking to minify their javascript on the fly (although caching the results is suggested for performance reasons). Unlike many other products this is not a port into php but a native application, resulting in better performance.
+
+### Usage
+
+Minifying your code is simple call to a static function-
+
+````
+<?php
+// Basic (default) usage.
+$minifiedCode = JShrink\Minifier::minify($js);
+
+// Disable YUI style comment preservation.
+$minifiedCode = JShrink\Minifier::minify($js, array('flaggedComments' => false));
+````
+
+### Results
+
+* Raw - 586,990
+* Gzip - 151,301
+* JShrink - 371,982
+* JShrink and Gzip - 93,507
diff --git a/lib/jsmin.php b/lib/jsmin.php
deleted file mode 100644
index 5c3f8814..00000000
--- a/lib/jsmin.php
+++ /dev/null
@@ -1,375 +0,0 @@
-<?php
-/**
- * jsmin.php - PHP implementation of Douglas Crockford's JSMin.
- *
- * This is pretty much a direct port of jsmin.c to PHP with just a few
- * PHP-specific performance tweaks. Also, whereas jsmin.c reads from stdin and
- * outputs to stdout, this library accepts a string as input and returns another
- * string as output.
- *
- * PHP 5 or higher is required.
- *
- * Permission is hereby granted to use this version of the library under the
- * same terms as jsmin.c, which has the following license:
- *
- * --
- * Copyright (c) 2002 Douglas Crockford  (www.crockford.com)
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy of
- * this software and associated documentation files (the "Software"), to deal in
- * the Software without restriction, including without limitation the rights to
- * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
- * of the Software, and to permit persons to whom the Software is furnished to do
- * so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
- *
- * The Software shall be used for Good, not Evil.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- * --
- *
- * @package JSMin
- * @author Ryan Grove <ryan@wonko.com>
- * @copyright 2002 Douglas Crockford <douglas@crockford.com> (jsmin.c)
- * @copyright 2008 Ryan Grove <ryan@wonko.com> (PHP port)
- * @license http://opensource.org/licenses/mit-license.php MIT License
- * @version 1.1.1 (2008-03-02)
- * @link https://github.com/rgrove/jsmin-php/
- */
-
-class JSMin {
-  const ORD_LF            = 10;
-  const ORD_SPACE         = 32;
-  const ACTION_KEEP_A     = 1;
-  const ACTION_DELETE_A   = 2;
-  const ACTION_DELETE_A_B = 3;
-
-  protected $a           = '';
-  protected $b           = '';
-  protected $input       = '';
-  protected $inputIndex  = 0;
-  protected $inputLength = 0;
-  protected $lookAhead   = null;
-  protected $output      = '';
-
-  // -- Public Static Methods --------------------------------------------------
-
-  /**
-   * Minify Javascript
-   *
-   * @uses __construct()
-   * @uses min()
-   * @param string $js Javascript to be minified
-   * @return string
-   */
-  public static function minify($js) {
-    $jsmin = new JSMin($js);
-    return $jsmin->min();
-  }
-
-  // -- Public Instance Methods ------------------------------------------------
-
-  /**
-   * Constructor
-   *
-   * @param string $input Javascript to be minified
-   */
-  public function __construct($input) {
-    $this->input       = str_replace("\r\n", "\n", $input);
-    $this->inputLength = strlen($this->input);
-  }
-
-  // -- Protected Instance Methods ---------------------------------------------
-
-  /**
-   * Action -- do something! What to do is determined by the $command argument.
-   *
-   * action treats a string as a single character. Wow!
-   * action recognizes a regular expression if it is preceded by ( or , or =.
-   *
-   * @uses next()
-   * @uses get()
-   * @throws JSMinException If parser errors are found:
-   *         - Unterminated string literal
-   *         - Unterminated regular expression set in regex literal
-   *         - Unterminated regular expression literal
-   * @param int $command One of class constants:
-   *      ACTION_KEEP_A      Output A. Copy B to A. Get the next B.
-   *      ACTION_DELETE_A    Copy B to A. Get the next B. (Delete A).
-   *      ACTION_DELETE_A_B  Get the next B. (Delete B).
-  */
-  protected function action($command) {
-    switch($command) {
-      case self::ACTION_KEEP_A:
-        $this->output .= $this->a;
-
-      case self::ACTION_DELETE_A:
-        $this->a = $this->b;
-
-        if ($this->a === "'" || $this->a === '"') {
-          for (;;) {
-            $this->output .= $this->a;
-            $this->a       = $this->get();
-
-            if ($this->a === $this->b) {
-              break;
-            }
-
-            if (ord($this->a) <= self::ORD_LF) {
-              throw new JSMinException('Unterminated string literal.');
-            }
-
-            if ($this->a === '\\') {
-              $this->output .= $this->a;
-              $this->a       = $this->get();
-            }
-          }
-        }
-
-      case self::ACTION_DELETE_A_B:
-        $this->b = $this->next();
-
-        if ($this->b === '/' && (
-            $this->a === '(' || $this->a === ',' || $this->a === '=' ||
-            $this->a === ':' || $this->a === '[' || $this->a === '!' ||
-            $this->a === '&' || $this->a === '|' || $this->a === '?' ||
-            $this->a === '{' || $this->a === '}' || $this->a === ';' ||
-            $this->a === "\n" )) {
-
-          $this->output .= $this->a . $this->b;
-
-          for (;;) {
-            $this->a = $this->get();
-
-            if ($this->a === '[') {
-              /*
-                inside a regex [...] set, which MAY contain a '/' itself. Example: mootools Form.Validator near line 460:
-                  return Form.Validator.getValidator('IsEmpty').test(element) || (/^(?:[a-z0-9!#$%&'*+/=?^_`{|}~-]\.?){0,63}[a-z0-9!#$%&'*+/=?^_`{|}~-]@(?:(?:[a-z0-9](?:[a-z0-9-]{0,61}[a-z0-9])?\.)*[a-z0-9](?:[a-z0-9-]{0,61}[a-z0-9])?|\[(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\])$/i).test(element.get('value'));
-              */
-              for (;;) {
-                $this->output .= $this->a;
-                $this->a = $this->get();
-
-                if ($this->a === ']') {
-                    break;
-                } elseif ($this->a === '\\') {
-                  $this->output .= $this->a;
-                  $this->a       = $this->get();
-                } elseif (ord($this->a) <= self::ORD_LF) {
-                  throw new JSMinException('Unterminated regular expression set in regex literal.');
-                }
-              }
-            } elseif ($this->a === '/') {
-              break;
-            } elseif ($this->a === '\\') {
-              $this->output .= $this->a;
-              $this->a       = $this->get();
-            } elseif (ord($this->a) <= self::ORD_LF) {
-              throw new JSMinException('Unterminated regular expression literal.');
-            }
-
-            $this->output .= $this->a;
-          }
-
-          $this->b = $this->next();
-        }
-    }
-  }
-
-  /**
-   * Get next char. Convert ctrl char to space.
-   *
-   * @return string|null
-   */
-  protected function get() {
-    $c = $this->lookAhead;
-    $this->lookAhead = null;
-
-    if ($c === null) {
-      if ($this->inputIndex < $this->inputLength) {
-        $c = substr($this->input, $this->inputIndex, 1);
-        $this->inputIndex += 1;
-      } else {
-        $c = null;
-      }
-    }
-
-    if ($c === "\r") {
-      return "\n";
-    }
-
-    if ($c === null || $c === "\n" || ord($c) >= self::ORD_SPACE) {
-      return $c;
-    }
-
-    return ' ';
-  }
-
-  /**
-   * Is $c a letter, digit, underscore, dollar sign, or non-ASCII character.
-   *
-   * @return bool
-   */
-  protected function isAlphaNum($c) {
-    return ord($c) > 126 || $c === '\\' || preg_match('/^[\w\$]$/', $c) === 1;
-  }
-
-  /**
-   * Perform minification, return result
-   *
-   * @uses action()
-   * @uses isAlphaNum()
-   * @return string
-   */
-  protected function min() {
-    $this->a = "\n";
-    $this->action(self::ACTION_DELETE_A_B);
-
-    while ($this->a !== null) {
-      switch ($this->a) {
-        case ' ':
-          if ($this->isAlphaNum($this->b)) {
-            $this->action(self::ACTION_KEEP_A);
-          } else {
-            $this->action(self::ACTION_DELETE_A);
-          }
-          break;
-
-        case "\n":
-          switch ($this->b) {
-            case '{':
-            case '[':
-            case '(':
-            case '+':
-            case '-':
-              $this->action(self::ACTION_KEEP_A);
-              break;
-
-            case ' ':
-              $this->action(self::ACTION_DELETE_A_B);
-              break;
-
-            default:
-              if ($this->isAlphaNum($this->b)) {
-                $this->action(self::ACTION_KEEP_A);
-              }
-              else {
-                $this->action(self::ACTION_DELETE_A);
-              }
-          }
-          break;
-
-        default:
-          switch ($this->b) {
-            case ' ':
-              if ($this->isAlphaNum($this->a)) {
-                $this->action(self::ACTION_KEEP_A);
-                break;
-              }
-
-              $this->action(self::ACTION_DELETE_A_B);
-              break;
-
-            case "\n":
-              switch ($this->a) {
-                case '}':
-                case ']':
-                case ')':
-                case '+':
-                case '-':
-                case '"':
-                case "'":
-                  $this->action(self::ACTION_KEEP_A);
-                  break;
-
-                default:
-                  if ($this->isAlphaNum($this->a)) {
-                    $this->action(self::ACTION_KEEP_A);
-                  }
-                  else {
-                    $this->action(self::ACTION_DELETE_A_B);
-                  }
-              }
-              break;
-
-            default:
-              $this->action(self::ACTION_KEEP_A);
-              break;
-          }
-      }
-    }
-
-    return $this->output;
-  }
-
-  /**
-   * Get the next character, skipping over comments. peek() is used to see
-   *  if a '/' is followed by a '/' or '*'.
-   *
-   * @uses get()
-   * @uses peek()
-   * @throws JSMinException On unterminated comment.
-   * @return string
-   */
-  protected function next() {
-    $c = $this->get();
-
-    if ($c === '/') {
-      switch($this->peek()) {
-        case '/':
-          for (;;) {
-            $c = $this->get();
-
-            if (ord($c) <= self::ORD_LF) {
-              return $c;
-            }
-          }
-
-        case '*':
-          $this->get();
-
-          for (;;) {
-            switch($this->get()) {
-              case '*':
-                if ($this->peek() === '/') {
-                  $this->get();
-                  return ' ';
-                }
-                break;
-
-              case null:
-                throw new JSMinException('Unterminated comment.');
-            }
-          }
-
-        default:
-          return $c;
-      }
-    }
-
-    return $c;
-  }
-
-  /**
-   * Get next char. If is ctrl character, translate to a space or newline.
-   *
-   * @uses get()
-   * @return string|null
-   */
-  protected function peek() {
-    $this->lookAhead = $this->get();
-    return $this->lookAhead;
-  }
-}
-
-// -- Exceptions ---------------------------------------------------------------
-class JSMinException extends Exception {}
-?>
\ No newline at end of file
diff --git a/prefs.php b/prefs.php
index 6c109184..4027fd1f 100644
--- a/prefs.php
+++ b/prefs.php
@@ -44,19 +44,19 @@
 
 	<script type="text/javascript">
 	<?php
-		require 'lib/jsmin.php';
+		require 'lib/jshrink/Minifier.php';
 
 		global $pluginhost;
 
 		foreach ($pluginhost->get_plugins() as $n => $p) {
 			if (method_exists($p, "get_prefs_js")) {
-				echo JSMin::minify($p->get_prefs_js());
+				echo JShrink\Minifier::minify($p->get_prefs_js());
 			}
 		}
 
 		foreach (array("functions", "deprecated", "prefs") as $js) {
 			if (!isset($_GET['debug'])) {
-				echo JSMin::minify(file_get_contents("js/$js.js"));
+				echo JShrink\Minifier::minify(file_get_contents("js/$js.js"));
 			} else {
 				echo file_get_contents("js/$js.js");
 			}