diff options
author | Pierre Schmitz <pierre@archlinux.de> | 2011-06-22 11:28:20 +0200 |
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committer | Pierre Schmitz <pierre@archlinux.de> | 2011-06-22 11:28:20 +0200 |
commit | 9db190c7e736ec8d063187d4241b59feaf7dc2d1 (patch) | |
tree | 46d1a0dee7febef5c2d57a9f7b972be16a163b3d /includes/JSMin.php | |
parent | 78677c7bbdcc9739f6c10c75935898a20e1acd9e (diff) |
update to MediaWiki 1.17.0
Diffstat (limited to 'includes/JSMin.php')
-rw-r--r-- | includes/JSMin.php | 290 |
1 files changed, 0 insertions, 290 deletions
diff --git a/includes/JSMin.php b/includes/JSMin.php deleted file mode 100644 index 70db7022..00000000 --- a/includes/JSMin.php +++ /dev/null @@ -1,290 +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 {} |