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  • <?php
    /* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
    /**
     * HTML renderer
     *
     * PHP versions 4 and 5
     *
     * LICENSE: This source file is subject to version 3.0 of the PHP license
     * that is available through the world-wide-web at the following URI:
     * http://www.php.net/license/3_0.txt.  If you did not receive a copy of
     * the PHP License and are unable to obtain it through the web, please
     * send a note to license@php.net so we can mail you a copy immediately.
     *
     * @category   Text
     * @package    Text_Highlighter
     * @author     Andrey Demenev <demenev@gmail.com>
     * @copyright  2004-2006 Andrey Demenev
     * @license    http://www.php.net/license/3_0.txt  PHP License
     * @version    CVS: $Id: Html.php 48 2006-02-11 03:01:37Z andrey $
     * @link       http://pear.php.net/package/Text_Highlighter
     */
    
    /**
     * @ignore
     */
    
    require_once 'Text/Highlighter/Renderer.php';
    
    /**
     * HTML renderer
     *
     * Elements of $options argument of constructor (each being optional):
     *
     * - 'numbers' - Line numbering style 0 or {@link HL_NUMBERS_LI} or {@link HL_NUMBERS_TABLE}
     * - 'tabsize' - Tab size
     *
     * @author Andrey Demenev <demenev@gmail.com>
     * @category   Text
     * @package    Text_Highlighter
     * @copyright  2004-2006 Andrey Demenev
     * @license    http://www.php.net/license/3_0.txt  PHP License
     * @version    Release: @package_version@
     * @link       http://pear.php.net/package/Text_Highlighter
     */
    
    class Text_Highlighter_Renderer_Array extends Text_Highlighter_Renderer
    {
    
        /**#@+
         * @access private
         */
    
        /**
         * CSS class of last outputted text chunk
         *
         * @var string
         */
        var $_lastClass;
    
        /**
         * Tab size
         *
         * @var integer
         */
        var $_tabsize = 4;
    
        /**
         * Highlighted code
         *
         * @var string
         */
        var $_output = '';
    
        /**#@-*/
    
    
        /**
         * Preprocesses code
         *
         * @access public
         *
         * @param  string $str Code to preprocess
         * @return string Preprocessed code
         */
        function preprocess($str)
        {
            // normalize whitespace and tabs
            $str = str_replace("\r\n","\n", $str);
            // some browsers refuse to display mepty lines
            $str = preg_replace('~^$~m'," ", $str);
            $str = str_replace("\t",str_repeat(' ', $this->_tabsize), $str);
            return rtrim($str);
        }
    
    
        /**
         * Resets renderer state
         *
         * @access protected
         *
         *
         * Descendents of Text_Highlighter call this method from the constructor,
         * passing $options they get as parameter.
         */
        function reset()
        {
            $this->_output = '';
            $this->_lastClass = '';
            if (isset($this->_options['tabsize'])) {
                $this->_tabsize = $this->_options['tabsize'];
            }
        }
    
    
    
        /**
         * Accepts next token
         *
         * @access public
         *
         * @param  string $class   Token class
         * @param  string $content Token content
         */
        function acceptToken($class, $content)
        {
            $theClass = $this->_getFullClassName($class);
            $content = htmlspecialchars($content);
            if (!$this->_output || $class != $this->_lastClass) {
                $tag = '';
                if ($this->_output) {
                    $tag .= '</span>';
                }
                $tag .= '<span class="hl-' . $theClass . '">';
                $this->_output .= $tag;
            } else {
                $class = $this->_lastClass;
                $theClass = $this->_getFullClassName($class);
            }
    
            // Make coloring tags not pass newlines
            $tag = "</span>\n<span class=\"hl-" . $theClass . '">';
            $content = str_replace("  ", '&nbsp; ', $content);
            $content = str_replace("\n", $tag, $content);
    
            $this->_output .= $content;
            $this->_lastClass = $class;
        }
    
        /**
         * Given a CSS class name, returns the class name
         * with language name prepended, if necessary
         *
         * @access private
         *
         * @param  string $class   Token class
         */
        function _getFullClassName($class)
        {
            if (!empty($this->_options['use_language'])) {
                $theClass = $this->_language . '-' . $class;
            } else {
                $theClass = $class;
            }
            return $theClass;
        }
    
        /**
         * Signals that no more tokens are available
         *
         * @access public
         *
         */
        function finalize()
        {
            if ($this->_output) {
                $this->_output .= '</span>';
            }
        }
    
        /**
         * Get generated output
         *
         * @return string Highlighted code
         * @access public
         *
         */
        function getOutput()
        {
            /* Convert this output to an array */
            $resultLines = explode("\n", $this->_output);
            return $resultLines;
        }
    }
    
    /*
     * Local variables:
     * tab-width: 4
     * c-basic-offset: 4
     * c-hanging-comment-ender-p: nil
     * End:
     */
    
    ?>