218 lines
8.3 KiB
PHP
218 lines
8.3 KiB
PHP
<?php
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/**
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* GeSHi example script
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*
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* Just point your browser at this script (with geshi.php in the parent directory,
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* and the language files in subdirectory "../geshi/")
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*
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* @author Nigel McNie
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* @version $Id: example.php 1512 2008-07-21 21:05:40Z benbe $
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*/
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header('Content-Type: text/html; charset=utf-8');
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error_reporting(E_ALL);
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// Rudimentary checking of where GeSHi is. In a default install it will be in ../, but
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// it could be in the current directory if the include_path is set. There's nowhere else
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// we can reasonably guess.
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if (is_readable('../geshi.php')) {
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$path = '../';
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} elseif (is_readable('geshi.php')) {
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$path = './';
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} else {
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die('Could not find geshi.php - make sure it is in your include path!');
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}
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require $path . 'geshi.php';
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$fill_source = false;
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if (isset($_POST['submit'])) {
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if (get_magic_quotes_gpc()) {
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$_POST['source'] = stripslashes($_POST['source']);
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}
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if (!strlen(trim($_POST['source']))) {
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$_POST['language'] = preg_replace('#[^a-zA-Z0-9\-_]#', '', $_POST['language']);
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$_POST['source'] = implode('', @file($path . 'geshi/' . $_POST['language'] . '.php'));
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$_POST['language'] = 'php';
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} else {
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$fill_source = true;
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}
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// Here's a free demo of how GeSHi works.
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// First the initialisation: source code to highlight and the language to use. Make sure
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// you sanitise correctly if you use $_POST of course - this very script has had a security
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// advisory against it in the past because of this. Please try not to use this script on a
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// live site.
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$geshi = new GeSHi($_POST['source'], $_POST['language']);
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// Use the PRE_VALID header. This means less output source since we don't have to output
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// everywhere. Of course it also means you can't set the tab width.
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// HEADER_PRE_VALID puts the <pre> tag inside the list items (<li>) thus producing valid HTML markup.
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// HEADER_PRE puts the <pre> tag around the list (<ol>) which is invalid in HTML 4 and XHTML 1
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// HEADER_DIV puts a <div> tag arount the list (valid!) but needs to replace whitespaces with  
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// thus producing much larger overhead. You can set the tab width though.
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$geshi->set_header_type(GESHI_HEADER_PRE_VALID);
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// Enable CSS classes. You can use get_stylesheet() to output a stylesheet for your code. Using
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// CSS classes results in much less output source.
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$geshi->enable_classes();
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// Enable line numbers. We want fancy line numbers, and we want every 5th line number to be fancy
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$geshi->enable_line_numbers(GESHI_FANCY_LINE_NUMBERS, 5);
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// Set the style for the PRE around the code. The line numbers are contained within this box (not
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// XHTML compliant btw, but if you are liberally minded about these things then you'll appreciate
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// the reduced source output).
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$geshi->set_overall_style('font: normal normal 90% monospace; color: #000066; border: 1px solid #d0d0d0; background-color: #f0f0f0;', false);
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// Set the style for line numbers. In order to get style for line numbers working, the <li> element
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// is being styled. This means that the code on the line will also be styled, and most of the time
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// you don't want this. So the set_code_style reverts styles for the line (by using a <div> on the line).
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// So the source output looks like this:
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//
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// <pre style="[set_overall_style styles]"><ol>
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// <li style="[set_line_style styles]"><div style="[set_code_style styles]>...</div></li>
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// ...
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// </ol></pre>
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$geshi->set_line_style('color: #003030;', 'font-weight: bold; color: #006060;', true);
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$geshi->set_code_style('color: #000020;', true);
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// Styles for hyperlinks in the code. GESHI_LINK for default styles, GESHI_HOVER for hover style etc...
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// note that classes must be enabled for this to work.
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$geshi->set_link_styles(GESHI_LINK, 'color: #000060;');
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$geshi->set_link_styles(GESHI_HOVER, 'background-color: #f0f000;');
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// Use the header/footer functionality. This puts a div with content within the PRE element, so it is
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// affected by the styles set by set_overall_style. So if the PRE has a border then the header/footer will
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// appear inside it.
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$geshi->set_header_content('<SPEED> <TIME> GeSHi © 2004-2007, Nigel McNie, 2007-2008 Benny Baumann. View source of example.php for example of using GeSHi');
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$geshi->set_header_content_style('font-family: sans-serif; color: #808080; font-size: 70%; font-weight: bold; background-color: #f0f0ff; border-bottom: 1px solid #d0d0d0; padding: 2px;');
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// You can use <TIME> and <VERSION> as placeholders
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$geshi->set_footer_content('Parsed in <TIME> seconds at <SPEED>, using GeSHi <VERSION>');
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$geshi->set_footer_content_style('font-family: sans-serif; color: #808080; font-size: 70%; font-weight: bold; background-color: #f0f0ff; border-top: 1px solid #d0d0d0; padding: 2px;');
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} else {
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// make sure we don't preselect any language
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$_POST['language'] = null;
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}
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?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
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<head>
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<title>GeSHi examples</title>
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<style type="text/css">
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<!--
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<?php
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if (isset($_POST['submit'])) {
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// Output the stylesheet. Note it doesn't output the <style> tag
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echo $geshi->get_stylesheet(true);
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}
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?>
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html {
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background-color: #f0f0f0;
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}
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body {
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font-family: Verdana, Arial, sans-serif;
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margin: 10px;
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border: 2px solid #e0e0e0;
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background-color: #fcfcfc;
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padding: 5px;
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}
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h2 {
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margin: .1em 0 .2em .5em;
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border-bottom: 1px solid #b0b0b0;
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color: #b0b0b0;
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font-weight: normal;
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font-size: 150%;
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}
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h3 {
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margin: .1em 0 .2em .5em;
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color: #b0b0b0;
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font-weight: normal;
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font-size: 120%;
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}
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#footer {
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text-align: center;
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font-size: 80%;
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color: #a9a9a9;
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}
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#footer a {
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color: #9999ff;
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}
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textarea {
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border: 1px solid #b0b0b0;
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font-size: 90%;
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color: #333;
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margin-left: 20px;
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}
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select, input {
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margin-left: 20px;
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}
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p {
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font-size: 90%;
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margin-left: .5em;
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}
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-->
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</style>
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</head>
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<body>
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<h2>GeSHi Example Script</h2>
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<p>To use this script, make sure that <strong>geshi.php</strong> is in the parent directory or in your
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include_path, and that the language files are in a subdirectory of GeSHi's directory called <strong>geshi/</strong>.</p>
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<p>Enter your source and a language to highlight the source in and submit, or just choose a language to
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have that language file highlighted in PHP.</p>
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<?php
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if (isset($_POST['submit'])) {
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// The fun part :)
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echo $geshi->parse_code();
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echo '<hr />';
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}
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?>
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<form action="<?php echo basename($_SERVER['PHP_SELF']); ?>" method="post">
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<h3>Source to highlight</h3>
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<p>
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<textarea rows="10" cols="60" name="source" id="source"><?php echo $fill_source ? htmlspecialchars($_POST['source']) : '' ?></textarea>
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</p>
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<h3>Choose a language</h3>
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<p>
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<select name="language" id="language">
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<?php
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if (!($dir = @opendir(dirname(__FILE__) . '/geshi'))) {
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if (!($dir = @opendir(dirname(__FILE__) . '/../geshi'))) {
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echo '<option>No languages available!</option>';
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}
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}
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$languages = array();
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while ($file = readdir($dir)) {
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if ( $file[0] == '.' || strpos($file, '.', 1) === false) {
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continue;
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}
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$lang = substr($file, 0, strpos($file, '.'));
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$languages[] = $lang;
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}
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closedir($dir);
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sort($languages);
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foreach ($languages as $lang) {
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if (isset($_POST['language']) && $_POST['language'] == $lang) {
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$selected = 'selected="selected"';
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} else {
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$selected = '';
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}
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echo '<option value="' . $lang . '" '. $selected .'>' . $lang . "</option>\n";
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}
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?>
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</select>
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</p>
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<p>
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<input type="submit" name="submit" value="Highlight Source" />
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<input type="submit" name="clear" onclick="document.getElementById('source').value='';document.getElementById('language').value='';return false" value="clear" />
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</p>
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</form>
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<div id="footer">GeSHi © Nigel McNie, 2004, released under the GNU GPL<br />
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For a better demonstration, check out the <a href="http://qbnz.com/highlighter/demo.php">online demo</a>
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</div>
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</body>
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</html>
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