| alpha--util

# Source for file AlphaMarkdown.inc Documentation is available at AlphaMarkdown.inc <?php require_once $config->get('sysRoot').'alpha/lib/markdown/markdown.php'; require_once $config->get('sysRoot').'alpha/view/widgets/Image.inc'; /** * * A custom version of the markdown class which uses the geshi library for rendering code * * @package alpha::util * @since 1.0 * @author John Collins <dev@alphaframework.org> * @version $Id: AlphaMarkdown.inc 1341 2011-03-17 15:02:02Z johnc $ * @license http://www.opensource.org/licenses/bsd-license.php The BSD License * @copyright Copyright (c) 2011, John Collins (founder of Alpha Framework). * All rights reserved. * * <pre> * Redistribution and use in source and binary forms, with or * without modification, are permitted provided that the * following conditions are met: * * * Redistributions of source code must retain the above * copyright notice, this list of conditions and the * following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the * following disclaimer in the documentation and/or other * materials provided with the distribution. * * Neither the name of the Alpha Framework nor the names * of its contributors may be used to endorse or promote * products derived from this software without specific * prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * </pre> * */ class AlphaMarkdown extends MarkdownExtra_Parser { /** * Custom version of the _doCodeBlocks_callback method which invokes a Gheshi * object to render code. * * @since 1.0 */ public function _doCodeBlocks_callback($matches) { $codeblock = $matches[1]; $codeblock = $this->outdent($codeblock); // trim leading newlines and trailing whitespace $codeblock = preg_replace(array('/\A\n+/', '/\n+\z/'), '', $codeblock); // find the code block and replace it with a blank $codeTypeTag = array(); preg_match('/codeType=\[.*\]/', $codeblock, $codeTypeTag); $codeblock = preg_replace('/codeType=\[.*\]\n/', '', $codeblock); if(isset($codeTypeTag[0])) { $start = strpos($codeTypeTag[0], '['); $end = strpos($codeTypeTag[0], ']'); $language = substr($codeTypeTag[0], $start+1, $end-($start+1)); }else{ // will use php as a defualt language type when none is provided $language = 'php'; } $geshiInstalled = true; try{ fopen('geshi.php', 'r', true); require_once 'geshi.php'; }catch (Exception $e) { $geshiInstalled = false; } if($geshiInstalled) { $geshi = new GeSHi($codeblock, $language); $codeblock = $geshi->parse_code(); } $result = "\n\n".$this->hashBlock("<pre><code>" . $codeblock . "\n</code></pre>")."\n\n"; return $result; } /** * Custom _doAnchors_inline_callback that renders links to external sites with a * target attribute and an icon. * * @since 1.0 */ public function _doAnchors_inline_callback($matches) { global $config; $whole_match = $matches[1]; $link_text = $this->runSpanGamut($matches[2]); $url = $matches[3]; $title =& $matches[6]; $external = false; $parts = parse_url($url); /* * Only an external link if: * * 1. $url parses to a valid URL * 2. $url has a host part * 3. $url does not contain $config->get('sysURL'), i.e. points to a local resource. */ if(is_array($parts) && isset($parts['host']) && strpos($url, $config->get('sysURL')) === false) $external = true; $url = $this->encodeAmpsAndAngles($url); $result = "<a href=\"$url\""; if (isset($title)) { $title = str_replace('"', '&quot;', $title); $title = $this->encodeAmpsAndAngles($title); $result .= " title=\"$title\""; } if ($external) { $result .= " target=\"$url\""; } $link_text = $this->runSpanGamut($link_text); if (!$external) { $result .= ">$link_text</a>"; }else{ $result .= '>'.$link_text.'<img src="'.$config->get('sysURL').'alpha/images/icons/page_go.png'.'" class="externalLink"/></a>'; } return $this->hashSpan($result); } /** * Custom version of the _doTable_callback(...) method which sets the table border and CSS style * * @since 1.0 */ public function _doTable_callback($matches) { $head = $matches[1]; $underline = $matches[2]; $content = $matches[3]; # Remove any tailing pipes for each line. $head = preg_replace('/[|] *$/m', '', $head); $underline = preg_replace('/[|] *$/m', '', $underline); $content = preg_replace('/[|] *$/m', '', $content); # Reading alignement from header underline. $separators = preg_split('/ *[|] */', $underline); foreach ($separators as $n => $s) { if (preg_match('/^ *-+: *$/', $s)) $attr[$n] = ' align="right"'; else if (preg_match('/^ *:-+: *$/', $s))$attr[$n] = ' align="center"'; else if (preg_match('/^ *:-+ *$/', $s)) $attr[$n] = ' align="left"'; else $attr[$n] = ''; } # Creating code spans before splitting the row is an easy way to # handle a code span containg pipes. $head = $this->doCodeSpans($head); $headers = preg_split('/ *[|] */', $head); $col_count = count($headers); # Write column headers. $text = "<table class=\"bordered\" border=\"1\">\n"; $text .= "<thead>\n"; $text .= "<tr>\n"; foreach ($headers as $n => $header) $text .= " <th$attr[$n]>".$this->runSpanGamut(trim($header))."</th>\n"; $text .= "</tr>\n"; $text .= "</thead>\n"; # Split content by row. $rows = explode("\n", trim($content, "\n")); $text .= "<tbody>\n"; foreach ($rows as $row) { # Creating code spans before splitting the row is an easy way to # handle a code span containg pipes. $row = $this->doCodeSpans($row); # Split row by cell. $row_cells = preg_split('/ *[|] */', $row, $col_count); $row_cells = array_pad($row_cells, $col_count, ''); $text .= "<tr>\n"; foreach ($row_cells as $n => $cell) $text .= " <td$attr[$n]>".$this->runSpanGamut(trim($cell))."</td>\n"; $text .= "</tr>\n"; } $text .= "</tbody>\n"; $text .= "</table>"; return $this->hashBlock($text) . "\n"; } } ?> Documentation generated on Thu, 17 Mar 2011 16:43:35 +0000 by phpDocumentor 1.4.3