Index: /trunk/geshi/index.php
===================================================================
--- /trunk/geshi/index.php	(revision 78)
+++ /trunk/geshi/index.php	(revision 78)
@@ -0,0 +1,228 @@
+<?php
+/**
+ * GeSHi example script
+ *
+ * Just point your browser at this script (with geshi.php in the parent directory,
+ * and the language files in subdirectory "../geshi/")
+ *
+ * @author  Nigel McNie
+ * @version $Id: example.php 1512 2008-07-21 21:05:40Z benbe $
+ */
+header('Content-Type: text/html; charset=utf-8');
+
+error_reporting(E_ALL);
+
+// Rudimentary checking of where GeSHi is. In a default install it will be in ../, but
+// it could be in the current directory if the include_path is set. There's nowhere else
+// we can reasonably guess.
+if (is_readable('../geshi.php')) {
+    $path = '../';
+} elseif (is_readable('geshi.php')) {
+    $path = './';
+} else {
+    die('Could not find geshi.php - make sure it is in your include path!');
+}
+require $path . 'geshi.php';
+
+$fill_source = false;
+if (isset($_POST['submit'])) {
+    if (get_magic_quotes_gpc()) {
+        $_POST['source'] = stripslashes($_POST['source']);
+    }
+    if (!strlen(trim($_POST['source']))) {
+        if(! isset($_POST['language'])) { $_POST['language'] = 'php'; }
+        $_POST['language'] = preg_replace('#[^a-zA-Z0-9\-_]#', '', $_POST['language']);
+        $_POST['source'] = implode('', @file($path . 'geshi/' . $_POST['language'] . '.php'));
+        $_POST['language'] = 'php';
+    } else {
+        $fill_source = true;
+    }
+
+    // Here's a free demo of how GeSHi works.
+
+    // First the initialisation: source code to highlight and the language to use. Make sure
+    // you sanitise correctly if you use $_POST of course - this very script has had a security
+    // advisory against it in the past because of this. Please try not to use this script on a
+    // live site.
+    $geshi = new GeSHi($_POST['source'], $_POST['language']);
+
+    // Use the PRE_VALID header. This means less output source since we don't have to output &nbsp;
+    // everywhere. Of course it also means you can't set the tab width.
+    // HEADER_PRE_VALID puts the <pre> tag inside the list items (<li>) thus producing valid HTML markup.
+    // HEADER_PRE puts the <pre> tag around the list (<ol>) which is invalid in HTML 4 and XHTML 1
+    // HEADER_DIV puts a <div> tag arount the list (valid!) but needs to replace whitespaces with &nbsp
+    //            thus producing much larger overhead. You can set the tab width though.
+    $geshi->set_header_type(GESHI_HEADER_PRE_VALID);
+
+    // Enable CSS classes. You can use get_stylesheet() to output a stylesheet for your code. Using
+    // CSS classes results in much less output source.
+    $geshi->enable_classes();
+
+    // Enable line numbers. We want fancy line numbers, and we want every 5th line number to be fancy
+    $geshi->enable_line_numbers(GESHI_FANCY_LINE_NUMBERS, 10);
+
+    // Set the style for the PRE around the code. The line numbers are contained within this box (not
+    // XHTML compliant btw, but if you are liberally minded about these things then you'll appreciate
+    // the reduced source output).
+    $geshi->set_overall_style('font: normal normal 90% monospace; color: #000066; border: 1px solid #d0d0d0; background-color: #ffffff;', false);
+
+    // Set the style for line numbers. In order to get style for line numbers working, the <li> element
+    // is being styled. This means that the code on the line will also be styled, and most of the time
+    // you don't want this. So the set_code_style reverts styles for the line (by using a <div> on the line).
+    // So the source output looks like this:
+    //
+    // <pre style="[set_overall_style styles]"><ol>
+    // <li style="[set_line_style styles]"><div style="[set_code_style styles]>...</div></li>
+    // ...
+    // </ol></pre>
+    $geshi->set_line_style('color: #003030;', 'font-weight: bold; color: #006060;', true);
+    $geshi->set_code_style('color: #000020;', true);
+
+    // Styles for hyperlinks in the code. GESHI_LINK for default styles, GESHI_HOVER for hover style etc...
+    // note that classes must be enabled for this to work.
+    $geshi->set_link_styles(GESHI_LINK, 'color: #000060;');
+    $geshi->set_link_styles(GESHI_HOVER, 'background-color: #f0f000;');
+
+    // Use the header/footer functionality. This puts a div with content within the PRE element, so it is
+    // affected by the styles set by set_overall_style. So if the PRE has a border then the header/footer will
+    // appear inside it.
+    //$geshi->set_header_content('<SPEED> <TIME> GeSHi &copy; 2004-2007, Nigel McNie, 2007-2008 Benny Baumann. View source of example.php for example of using GeSHi');
+    //$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;');
+
+    // You can use <TIME> and <VERSION> as placeholders
+    $geshi->set_footer_content('Parsed in <TIME> seconds at <SPEED>, using GeSHi <VERSION>');
+    $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;');
+} else {
+    // make sure we don't preselect any language
+    $_POST['language'] = null;
+}
+?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
+     "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
+<head>
+    <title>GeSHi - Generic Syntax Highlighter</title>
+    <style type="text/css">
+    <!--
+    <?php
+    if (isset($_POST['submit'])) {
+        // Output the stylesheet. Note it doesn't output the <style> tag
+        echo $geshi->get_stylesheet(true);
+    }
+    ?>
+    html {
+        background-color: #f0f0f0;
+    }
+    body {
+        font-family: Verdana, Arial, sans-serif;
+        margin: 10px;
+        border: 2px solid #e0e0e0;
+        background-color: #fcfcfc;
+        padding: 5px;
+    }
+    h2 {
+        margin: .1em 0 .2em .5em;
+        border-bottom: 1px solid #b0b0b0;
+        color: #b0b0b0;
+        font-weight: normal;
+        font-size: 150%;
+    }
+    h3 {
+        margin: .1em 0 .2em .5em;
+        color: #b0b0b0;
+        font-weight: normal;
+        font-size: 120%;
+    }
+    #footer {
+        text-align: center;
+        font-size: 80%;
+        color: #a9a9a9;
+    }
+    #footer a {
+        color: #9999ff;
+    }
+    textarea {
+        border: 1px solid #b0b0b0;
+        font-size: 90%;
+        color: #333;
+        margin-left: 20px;
+    }
+    select, input {
+        margin-left: 20px;
+    }
+    p {
+        font-size: 90%;
+        margin-left: .5em;
+    }
+    -->
+    </style>
+</head>
+<body>
+<!--
+<h2>GeSHi Example Script</h2>
+<p>To use this script, make sure that <strong>geshi.php</strong> is in the parent directory or in your
+include_path, and that the language files are in a subdirectory of GeSHi's directory called <strong>geshi/</strong>.</p>
+<p>Enter your source and a language to highlight the source in and submit, or just choose a language to
+have that language file highlighted in PHP.</p>
+-->
+<?php
+if (isset($_POST['submit'])) {
+    // The fun part :)
+    echo $geshi->parse_code();
+    echo '<hr />';
+    echo '</body>';
+    echo '</html>';
+    exit;
+}
+?>
+<h2>GeSHi - Generic Syntax Highlighter</h2>
+<ul>
+  <li><a href="docs/geshi-doc.html">GeSHi Documentation</a></li>
+  <li><a href="docs/api/">GeSHi API</a></li>
+</ul>
+<form action="<?php echo basename($_SERVER['PHP_SELF']); ?>" method="post">
+<h3>Source to highlight</h3>
+<p>
+<textarea rows="30" cols="120" name="source" id="source"><?php echo $fill_source ? htmlspecialchars($_POST['source']) : '' ?></textarea>
+</p>
+<h3>Choose a language</h3>
+<p>
+<select name="language" id="language">
+<?php
+if (!($dir = @opendir(dirname(__FILE__) . '/geshi'))) {
+    if (!($dir = @opendir(dirname(__FILE__) . '/../geshi'))) {
+        echo '<option>No languages available!</option>';
+    }
+}
+$languages = array();
+while ($file = readdir($dir)) {
+    if ( $file[0] == '.' || strpos($file, '.', 1) === false) {
+        continue;
+    }
+    $lang = substr($file, 0,  strpos($file, '.'));
+    $languages[] = $lang;
+}
+closedir($dir);
+sort($languages);
+foreach ($languages as $lang) {
+    if (isset($_POST['language']) && $_POST['language'] == $lang) {
+        $selected = 'selected="selected"';
+    } else {
+        $selected = '';
+    }
+    echo '<option value="' . $lang . '" '. $selected .'>' . $lang . "</option>\n";
+}
+
+?>
+</select>
+</p>
+<p>
+<input type="submit" name="submit" value="Highlight Source" />
+<input type="submit" name="clear" onclick="document.getElementById('source').value='';document.getElementById('language').value='';return false" value="clear" />
+</p>
+</form>
+<div id="footer">GeSHi &copy; Nigel McNie, 2004, released under the GNU GPL<br />
+For a better demonstration, check out the <a href="http://qbnz.com/highlighter/demo.php">online demo</a>
+</div>
+</body>
+</html>
