diff options
author | mistic100 <mistic@piwigo.org> | 2012-12-26 11:39:32 +0000 |
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committer | mistic100 <mistic@piwigo.org> | 2012-12-26 11:39:32 +0000 |
commit | 69a20717788a577735e840d86447746c4dcb3f94 (patch) | |
tree | 5dc43720d3fba723525f5643c937d1723d5dd8b1 /include/jsmin.class.php | |
parent | 9cc816d364057828cecc26dc1432448a57f261e9 (diff) |
bug:2663 replace JSmin by JShrink
git-svn-id: http://piwigo.org/svn/trunk@19576 68402e56-0260-453c-a942-63ccdbb3a9ee
Diffstat (limited to '')
-rw-r--r-- | include/jsmin.class.php | 291 |
1 files changed, 0 insertions, 291 deletions
diff --git a/include/jsmin.class.php b/include/jsmin.class.php deleted file mode 100644 index 3c2f859df..000000000 --- a/include/jsmin.class.php +++ /dev/null @@ -1,291 +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 http://code.google.com/p/jsmin-php/ - */ - -class JSMin { - const ORD_LF = 10; - const ORD_SPACE = 32; - - protected $a = ''; - protected $b = ''; - protected $input = ''; - protected $inputIndex = 0; - protected $inputLength = 0; - protected $lookAhead = null; - protected $output = ''; - - // -- Public Static Methods -------------------------------------------------- - - public static function minify($js) { - $jsmin = new JSMin($js); - return $jsmin->min(); - } - - // -- Public Instance Methods ------------------------------------------------ - - public function __construct($input) { - $this->input = str_replace("\r\n", "\n", $input); - $this->inputLength = strlen($this->input); - } - - // -- Protected Instance Methods --------------------------------------------- - - protected function action($d) { - switch($d) { - case 1: - $this->output .= $this->a; - - case 2: - $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 3: - $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->output .= $this->a . $this->b; - - for (;;) { - $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 '. - 'literal.'); - } - - $this->output .= $this->a; - } - - $this->b = $this->next(); - } - } - } - - 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 $c; - } - - return ' '; - } - - protected function isAlphaNum($c) { - return ord($c) > 126 || $c === '\\' || preg_match('/^[\w\$]$/', $c) === 1; - } - - protected function min() { - $this->a = "\n"; - $this->action(3); - - while ($this->a !== null) { - switch ($this->a) { - case ' ': - if ($this->isAlphaNum($this->b)) { - $this->action(1); - } else { - $this->action(2); - } - break; - - case "\n": - switch ($this->b) { - case '{': - case '[': - case '(': - case '+': - case '-': - $this->action(1); - break; - - case ' ': - $this->action(3); - break; - - default: - if ($this->isAlphaNum($this->b)) { - $this->action(1); - } - else { - $this->action(2); - } - } - break; - - default: - switch ($this->b) { - case ' ': - if ($this->isAlphaNum($this->a)) { - $this->action(1); - break; - } - - $this->action(3); - break; - - case "\n": - switch ($this->a) { - case '}': - case ']': - case ')': - case '+': - case '-': - case '"': - case "'": - $this->action(1); - break; - - default: - if ($this->isAlphaNum($this->a)) { - $this->action(1); - } - else { - $this->action(3); - } - } - break; - - default: - $this->action(1); - break; - } - } - } - - return $this->output; - } - - 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; - } - - protected function peek() { - $this->lookAhead = $this->get(); - return $this->lookAhead; - } -} - -// -- Exceptions --------------------------------------------------------------- -class JSMinException extends Exception {} -?>
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