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,v 1.7 2009/02/23 03:26:19 squiz Exp $
 * @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

?>