Subversion Repositories Applications.framework

<?php

/**

 * Tokenizes CSS code.

 *

 * PHP version 5

 *

 * @category  PHP

 * @package   PHP_CodeSniffer

 * @author    Greg Sherwood <gsherwood@squiz.net>

 * @copyright 2006 Squiz Pty Ltd (ABN 77 084 670 600)

 * @license   http://matrix.squiz.net/developer/tools/php_cs/licence BSD Licence

 * @version   CVS: $Id: CSS.php 34 2009-04-09 07:34:39Z aurelien $

 * @link      http://pear.php.net/package/PHP_CodeSniffer

 */

if (class_exists('PHP_CodeSniffer_Tokenizers_PHP', true) === false) {

    throw new Exception('Class PHP_CodeSniffer_Tokenizers_PHP not found');

}

/**

 * Tokenizes CSS code.

 *

 * @category  PHP

 * @package   PHP_CodeSniffer

 * @author    Greg Sherwood <gsherwood@squiz.net>

 * @copyright 2006 Squiz Pty Ltd (ABN 77 084 670 600)

 * @license   http://matrix.squiz.net/developer/tools/php_cs/licence BSD Licence

 * @version   Release: 1.2.0RC1

 * @link      http://pear.php.net/package/PHP_CodeSniffer

 */

class PHP_CodeSniffer_Tokenizers_CSS extends PHP_CodeSniffer_Tokenizers_PHP

{

    /**

     * Creates an array of tokens when given some CSS code.

     *

     * Uses the PHP tokenizer to do all the tricky work

     *

     * @param string $string  The string to tokenize.

     * @param string $eolChar The EOL character to use for splitting strings.

     *

     * @return array

     */

    public function tokenizeString($string, $eolChar='\n')

    {

        $tokens      = parent::tokenizeString('<?php '.$string.' ?>', $eolChar);

        $finalTokens = array();

        $newStackPtr = 0;

        $numTokens   = count($tokens);

        for ($stackPtr = 0; $stackPtr < $numTokens; $stackPtr++) {

            $token = $tokens[$stackPtr];

            // Styles like list-style are tokenized as T_LIST-T_STRING

            // so convert the T_LIST to a string.

            if ($token['code'] === T_LIST) {

                $token['code'] = T_STRING;

                $token['type'] = 'T_STRING';

            }

            if ($token['code'] === T_COMMENT

                && (substr($token['content'], 0, 2) === '//'

                || $token['content']{0} === '#')

            ) {

                $content = ltrim($token['content'], '#/');

                $commentTokens

                    = parent::tokenizeString('<?php '.$content.'?>', $eolChar);

                // The first and last tokens are the open/close tags.

                array_shift($commentTokens);

                array_pop($commentTokens);

                if ($token['content']{0} === '#') {

                    // The # character is not a comment in CSS files, so determine

                    // what it means in this context.

                    $firstContent = $commentTokens[0]['content'];

                    // If the first content is just a number, it is probably a

                    // colour like 8FB7DB, which PHP splits into 8 and FB7DB.

                    if ($commentTokens[0]['code'] === T_LNUMBER

                        && $commentTokens[1]['code'] === T_STRING

                    ) {

                        $firstContent .= $commentTokens[1]['content'];

                        array_shift($commentTokens);

                    }

                    // If the first content looks like a colour and not a class

                    // definition, join the tokens together.

                    if (preg_match('/^[ABCDEF0-9]+$/i', $firstContent) === 1) {

                        array_shift($commentTokens);

                        $finalTokens[$newStackPtr] = array(

                                                      'type'    => 'T_COLOUR',

                                                      'code'    => T_COLOUR,

                                                      'content' => '#'.$firstContent,

                                                     );

                    } else {

                        $finalTokens[$newStackPtr] = array(

                                                      'type'    => 'T_HASH',

                                                      'code'    => T_HASH,

                                                      'content' => '#',

                                                     );

                    }

                } else {

                    $finalTokens[$newStackPtr] = array(

                                                  'type'    => 'T_STRING',

                                                  'code'    => T_STRING,

                                                  'content' => '//',

                                                 );

                }//end if

                $newStackPtr++;

                foreach ($commentTokens as $tokenData) {

                    $finalTokens[$newStackPtr] = $tokenData;

                    $newStackPtr++;

                }

                continue;

            }//end if

            $finalTokens[$newStackPtr] = $token;

            $newStackPtr++;

        }//end for

        $numTokens = count($finalTokens);

        for ($stackPtr = 0; $stackPtr < $numTokens; $stackPtr++) {

            $token = $finalTokens[$stackPtr];

            switch ($token['code']) {

            case T_MINUS:

                // Minus signs are often used instead of spaces inside

                // class names, IDs and styles.

                if ($finalTokens[($stackPtr + 1)]['code'] === T_STRING) {

                    if ($finalTokens[($stackPtr - 1)]['code'] === T_STRING) {

                        $newContent = $finalTokens[($stackPtr - 1)]['content'].'-'.$finalTokens[($stackPtr + 1)]['content'];

                        $finalTokens[($stackPtr - 1)]['content'] = $newContent;

                        unset($finalTokens[$stackPtr]);

                        unset($finalTokens[($stackPtr + 1)]);

                        $stackPtr -= 2;

                    } else {

                        $newContent = '-'.$finalTokens[($stackPtr + 1)]['content'];

                        $finalTokens[($stackPtr + 1)]['content'] = $newContent;

                        unset($finalTokens[$stackPtr]);

                        $stackPtr--;

                    }

                    $finalTokens = array_values($finalTokens);

                    $numTokens   = count($finalTokens);

                } else if ($finalTokens[($stackPtr + 1)]['code'] === T_LNUMBER) {

                    // They can also be used to provide negative numbers.

                    $finalTokens[($stackPtr + 1)]['content']

                        = '-'.$finalTokens[($stackPtr + 1)]['content'];

                    unset($finalTokens[$stackPtr]);

                    $finalTokens = array_values($finalTokens);

                    $numTokens   = count($finalTokens);

                }

                break;

            case T_COLON:

                // Find the previous content.

                for ($x = ($stackPtr - 1); $x >= 0; $x--) {

                    if (in_array($finalTokens[$x]['code'], PHP_CodeSniffer_Tokens::$emptyTokens) === false) {

                        break;

                    }

                }

                $finalTokens[$x]['type'] = 'T_STYLE';

                $finalTokens[$x]['code'] = T_STYLE;

                break;

            case T_STRING:

                if (strtolower($token['content']) === 'url') {

                    // Find the next content.

                    for ($x = ($stackPtr + 1); $x < $numTokens; $x++) {

                        if (in_array($finalTokens[$x]['code'], PHP_CodeSniffer_Tokens::$emptyTokens) === false) {

                            break;

                        }

                    }

                    // Needs to be in the format url( for it to be a URL.

                    if ($finalTokens[$x]['code'] !== T_OPEN_PARENTHESIS) {

                        continue;

                    }

                    // Join all the content together inside the url() statement.

                    $newContent = '';

                    for ($i = ($x + 2); $i < $numTokens; $i++) {

                        if ($finalTokens[$i]['code'] === T_CLOSE_PARENTHESIS) {

                            break;

                        }

                        $newContent .= $finalTokens[$i]['content'];

                        unset($finalTokens[$i]);

                    }

                    $finalTokens[($x + 1)]['type']     = 'T_URL';

                    $finalTokens[($x + 1)]['code']     = T_URL;

                    $finalTokens[($x + 1)]['content'] .= $newContent;

                    $finalTokens = array_values($finalTokens);

                    $numTokens   = count($finalTokens);

                }//end if

                break;

            default:

                // Nothing special to be done with this token.

                break;

            }//end switch

        }//end for

        return $finalTokens;

    }//end tokenizeString()

}//end class

?>