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<?php
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/*
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Modules Name: Coolfilter
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Modules URI: http://drupal.org/node/61357
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Description: Adds syntax highlighting and line number to your code, base on Text_Highlighter.
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Version: 2.9
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Author: andot,liukan transplant to drupal
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Author URI: http://www.kylinx.net/ & coolcode.cn
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*/
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//include_once 'coolfilter.module';
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//================================================================================
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// Download the code
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//================================================================================
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//================================================================================
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// Get the PEAR path, and include the CoolCode
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//================================================================================
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$pear_dir = "/var/www/localhost/htdocs/drupal5/drupal/modules/coolfilter/pear";
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if(is_dir($pear_dir))
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ini_set("include_path", ini_get("include_path") . PATH_SEPARATOR . $pear_dir);
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require_once 'Text/Highlighter.php';
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//================================================================================
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// Create our custom highlighter, then add the filters
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// We have sets - before and after, which are performed before and
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// after all of the other filters. This is to bypass any filters
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// that do crazy text replacements. It's easier this way, instead of
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// trying to undo what the other filters did.
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//================================================================================
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/*
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$CoolCode = new CoolCode();
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// Showing
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add_filter('the_content', array(&$CoolCode, 'part_one'), -1000);
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add_filter('the_content', array(&$CoolCode, 'part_two'), 1000);
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add_filter('the_excerpt', array(&$CoolCode, 'part_one'), -1000);
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add_filter('the_excerpt', array(&$CoolCode, 'part_two'), 1000);
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add_filter('comment_text', array(&$CoolCode, 'part_one'), -1000);
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add_filter('comment_text', array(&$CoolCode, 'part_two'), 1000);
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add_action('wp_head', array(&$CoolCode, 'add_css'));
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add_action('wp_head', array(&$CoolCode, 'add_js'));
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unset($CoolCode);
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*/
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class CoolCode
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{
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// The languages the Text_Highlighter can accept
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var $acceptable_lang = array('php', 'cpp', 'css', 'diff', 'dtd', 'javascript', 'html',
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'mysql', 'perl', 'python', 'ruby', 'sql', 'xml', 'java', 'actionscript');
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var $hl_class = array('class="hl-default"', 'class="hl-code"', 'class="hl-brackets"',
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'class="hl-comment"', 'class="hl-quotes"', 'class="hl-string"',
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'class="hl-identifier"', 'class="hl-builtin"', 'class="hl-reserved"',
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'class="hl-inlinedoc"', 'class="hl-var"', 'class="hl-url"',
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'class="hl-special"', 'class="hl-number"', 'class="hl-inlinetags"');
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var $hl_style = array('style="color: Black;"', 'style="color: Gray;"', 'style="color: Olive;"',
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'style="color: #ffa500;"', 'style="color: #8b0000;"', 'style="color: Red;"',
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'style="color: Blue;"', 'style="color: Teal;"' ,'style="color: Green;"',
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'style="color: Blue;"', 'style="color: #00008b;"', 'style="color: Blue;"',
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'style="color: Navy;"', 'style="color: Maroon;"', 'style="color: Blue;"');
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// The blocks array that holds the block ID's and their real code blocks
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var $blocks = array();
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/****************************************************************************
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* part_one
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* > Replace the code blocks with the block IDs
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****************************************************************************/
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function part_one($content)
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{
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$search = strtolower($content);
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$pos = 0;
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while (true) {
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$count = 0;
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$pos1 = strpos($search, "<coolcode", $pos);
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$pos2 = strpos($search, "[coolcode", $pos);
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if ($pos1 === false) {
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if ($pos2 === false) {
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return $content;
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}
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else {
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$pos = $pos2;
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$bracket = array('[', ']');
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}
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}
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else {
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if ($pos2 === false) {
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$pos = $pos1;
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$bracket = array('<', '>');
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}
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else if ($pos1 < $pos2) {
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$pos = $pos1;
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$bracket = array('<', '>');
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}
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else {
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$pos = $pos2;
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$bracket = array('[', ']');
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}
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}
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$start = $pos++;
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$count = 1;
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while ($count > 0) {
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$pos1 = strpos($search, $bracket[0] . "coolcode", $pos);
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$pos2 = strpos($search, $bracket[0] . "/coolcode" . $bracket[1], $pos);
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if ($pos1 === false) {
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if ($pos2 === false) {
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return $content;
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}
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else {
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$pos = $pos2;
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$count--;
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}
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}
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else {
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if ($pos2 === false) {
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$pos = $pos1;
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$count++;
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}
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else if ($pos1 < $pos2) {
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$pos = $pos1;
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$count++;
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}
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else {
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$pos = $pos2;
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$count--;
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}
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}
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$pos++;
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}
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$end = $pos + 10;
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$code = substr($content, $start, $end - $start);
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$code = preg_replace('#^\<coolcode(.*?)\>(.*)\</coolcode\>$#sie', '$this->do_CoolCode($code, \'\\2\', \'\\1\');', $code);
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$code = preg_replace('#^\[coolcode(.*?)\](.*)\[/coolcode\]$#sie', '$this->do_CoolCode($code, \'\\2\', \'\\1\');', $code);
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$content = substr($content, 0, $start) . $code . substr($content, $end);
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$search = strtolower($content);
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$pos = $start + strlen($code);
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}
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return $content;
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}
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/****************************************************************************
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* part_two
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* > Replace the block ID's from part one with the actual code blocks
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****************************************************************************/
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function part_two($content)
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{
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if (count($this->blocks)) {
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$content = str_replace(array_keys($this->blocks), array_values($this->blocks), $content);
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$this->blocks = array();
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}
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return $content;
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}
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/****************************************************************************
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* do_CoolCode
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* > Perform the code highlighting that is to be replaced with a block ID
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****************************************************************************/
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function do_CoolCode($content, $txt, $options)
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{
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//global $post;
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$options = str_replace(array("\\\"", "\\\'"), array("\"", "\'"), $options);
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if (preg_match('/lang="(\w*?)"/i', $options, $match)) {
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$lang = $match[1];
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}
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else {
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$lang = "";
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}
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if (preg_match('/linenum="(\w*?)"/i', $options, $match)) {
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$linenum = $match[1];
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}
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else {
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$linenum = "on";
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}
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if (preg_match('/download="(.*?)"/i', $options, $match)) {
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$download = $match[1];
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}
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else {
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$download = "";
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}
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$txt = str_replace("\\\"", "\"", $txt);
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$txt = trim($txt);
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$txt = str_replace("\r\n", "\n", $txt);
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$txt = str_replace("\r", "\n", $txt);
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$blockID = $this->getBlockID($content);
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if ($download == "") {
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$this->blocks[$blockID] = '';
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}
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else {
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//global $nid;
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$this->blocks[$blockID] = '<div class="hl-title">Download Code: <a href="#coolcode_download">' . htmlspecialchars($download) . '</a></div>';
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}
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$hackphp = false;
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if (strtolower($lang) == 'php') {
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if (strpos($txt, '<' . '?') === false) {
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$txt = '<' . "?php\n" . $txt . "\n?" . '>';
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$hackphp = true;
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}
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}
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if ((strtolower($linenum) == 'on') or (strtolower($linenum) == 'open')) {
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if(!in_array(strtolower($lang), $this->acceptable_lang)) {
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$this->blocks[$blockID] .= '<div class="hl-surround"><ol class="hl-main ln-show" '
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. 'title="Double click to hide line number." '
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. 'ondblclick = "linenumber(this)"><li class="hl-firstline">'
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. str_replace("\n", "</li>\n<li>", htmlspecialchars($txt))
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. '</li></ol></div>';
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$this->blocks[$blockID] = str_replace("<li></li>", "<li> </li>", $this->blocks[$blockID]);
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$this->blocks[$blockID] = str_replace('<li> ', '<li> ', $this->blocks[$blockID]);
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}
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else
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{
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$options = array(
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'numbers' => HL_NUMBERS_LI,
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);
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$hl =& Text_Highlighter::factory($lang, $options);
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$this->blocks[$blockID] .= '<div class="hl-surround">' . str_replace($this->hl_class, $this->hl_style, $hl->highlight($txt)) . '</div>';
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$this->blocks[$blockID] = preg_replace('/<span style=\"[^\"]*?\"><\/span>/', '', $this->blocks[$blockID]);
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$this->blocks[$blockID] = str_replace('<ol class="hl-main">',
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'<ol class="hl-main ln-show" title="Double click to hide line number." ondblclick = "linenumber(this)">',
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$this->blocks[$blockID]);
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$this->blocks[$blockID] = str_replace("\"> </span></li>", "\"> </span></li>", $this->blocks[$blockID]);
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$this->blocks[$blockID] = preg_replace('/<li><span style=(.*?)> </si', '<li><span style=\\1> <', $this->blocks[$blockID]);
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if ($hackphp) {
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$this->blocks[$blockID] = str_replace("<span style=\"color: Blue;\"><?php</span></li>\n<li>", '', $this->blocks[$blockID]);
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$this->blocks[$blockID] = str_replace('<li><span style="color: Blue;">?></span></li>', '', $this->blocks[$blockID]);
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}
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}
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}
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else {
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if(!in_array(strtolower($lang), $this->acceptable_lang)) {
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$this->blocks[$blockID] .= '<div class="hl-surround"><div class="hl-main">'
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. str_replace("\n", "<br />", htmlspecialchars($txt))
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. '</div></div>';
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}
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else
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{
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$hl =& Text_Highlighter::factory($lang);
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$this->blocks[$blockID] .= '<div class="hl-surround">' . str_replace("\n", "<br />", str_replace("</pre>", "", str_replace("<pre>", "", str_replace($this->hl_class, $this->hl_style, $hl->highlight($txt))))) . '</div>';
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if ($hackphp) {
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$this->blocks[$blockID] = str_replace('<span style="color: Blue;"><?php</span><span style="color: Gray;"><br /></span>', '', $this->blocks[$blockID]);
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$this->blocks[$blockID] = str_replace('<br /></span><span style="color: Blue;">?></span>', '</span>', $this->blocks[$blockID]);
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}
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}
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$this->blocks[$blockID] = str_replace('<br /> ', '<br /> ', $this->blocks[$blockID]);
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}
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// correct the indent
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$this->blocks[$blockID] = str_replace(" ", ' ', $this->blocks[$blockID]);
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$this->blocks[$blockID] = str_replace(" ", ' ', $this->blocks[$blockID]);
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return $blockID;
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}
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/****************************************************************************
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* getBlockID
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* > Generate a block ID that will be replaced at the end (after all that
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* crazy WP text work!) with the right code
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****************************************************************************/
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function getBlockID($content)
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{
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static $num = 0;
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// Just do a check to make sure the user
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// hasn't (however unlikely) input block replacements
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// as legit text
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do
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{
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++$num;
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$blockID = "<p>++CoolCode_BLOCK_$num++</p>";
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}
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while(strpos($content, $blockID) !== false);
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return $blockID;
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}
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}
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?>
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