mirror of
https://github.com/sbrl/Pepperminty-Wiki.git
synced 2024-12-22 01:35:02 +00:00
176 lines
8.1 KiB
PHP
176 lines
8.1 KiB
PHP
<?php
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
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register_module([
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"name" => "Old Default Parser",
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"version" => "0.10.1",
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"author" => "Johnny Broadway & Starbeamrainbowlabs",
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"description" => "The *old* default parser for Pepperminty Wiki. Based on Johnny Broadway's Slimdown (with more than a few modifications). This parser's features are documented in the help page. Superceded by a customised extension of parsedown extra.",
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"id" => "parser-default-old",
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"optional" => true,
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"code" => function() {
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global $settings;
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add_parser("default", function($markdown) {
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return Slimdown::render($markdown);
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}, function($source) {
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global $version, $settings;
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return str_replace(["+","/"], ["-","_"], base64_encode(hash(
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"sha256",
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"$version|$settings->parser|$source",
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true
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)));
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});
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// Register the help section
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if($settings->parser != "default")
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return; // Don't register the help section if we aren't the currently set parser.
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add_help_section("20-parser-default", "Editor Syntax", "<p>$settings->sitename's editor uses a modified version of slimdown, a flavour of markdown that is implementated using regular expressions. See the credits page for more information and links to the original source for this. A quick reference can be found below:</p>
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<table>
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<tr><th>Type This</th><th>To get this</th>
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<tr><td><code>_italics_</code></td><td><em>italics</em></td></tr>
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<tr><td><code>*bold*</code></td><td><strong>bold</strong></td></tr>
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<tr><td><code>~~Strikethrough~~</code></td><td><del>Strikethough</del></td></tr>
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<tr><td><code>`code`</code></td><td><code>code</code></td></tr>
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<tr><td><code># Heading</code></td><td><h2>Heading</h2></td></tr>
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<tr><td><code>## Sub Heading</code></td><td><h3>Sub Heading</h3></td></tr>
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<tr><td><code>[[Internal Link]]</code></td><td><a href='index.php?page=Internal Link'>Internal Link</a></td></tr>
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<tr><td><code>[[Display Text|Internal Link]]</code></td><td><a href='index.php?page=Internal Link'>Display Text</a></td></tr>
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<tr><td><code>[Display text](//google.com/)</code></td><td><a href='//google.com/'>Display Text</a></td></tr>
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<tr><td><code>> Blockquote<br />> Some text</code></td><td><blockquote> Blockquote<br />Some text</td></tr>
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<tr><td><code> - Apples<br /> * Oranges</code></td><td><ul><li>Apples</li><li>Oranges</li></ul></td></tr>
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<tr><td><code>1. This is<br />2. an ordered list</code></td><td><ol><li>This is</li><li>an ordered list</li></ol></td></tr>
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<tr><td><code>
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---
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</code></td><td><hr /></td></tr>
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<!--<tr><tds><code> - One
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- Two
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- Three</code></td><td><ul><li>One</li><li>Two</li><li>Three</li></ul></td></tr>-->
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<tr><td><code></code></td><td><img src='//starbeamrainbowlabs.com/favicon-small.png' alt='Alt text' /></td></code>
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</table>
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<p>In addition, the following extra syntax is supported for images:</p>
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<pre><code>Size the image to at most 250 pixels wide:
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Size the image to at most 120px wide and have it float at the right ahnd size of the page:
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</code></pre>");
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}
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]);
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/***********************************************************************
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* ███████ ██ ██ ███ ███ ██████ ██████ ██ ██ ███ ██ *
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* ██ ██ ██ ████ ████ ██ ██ ██ ██ ██ ██ ████ ██ *
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* ███████ ██ ██ ██ ████ ██ ██ ██ ██ ██ ██ █ ██ ██ ██ ██ *
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* ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ███ ██ ██ ██ ██ *
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* ███████ ███████ ██ ██ ██ ██████ ██████ ███ ███ ██ ████ *
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***********************************************************************/
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/**
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* Slimdown - A very basic regex-based Markdown parser. Supports the
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* following elements (and can be extended via Slimdown::add_rule()):
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*
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* - Headers
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* - Links
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* - Bold
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* - Emphasis
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* - Deletions
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* - Quotes
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* - Inline code
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* - Blockquotes
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* - Ordered/unordered lists
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* - Horizontal rules
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*
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* Author: Johnny Broadway <johnny@johnnybroadway.com>
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* Website: https://gist.github.com/jbroadway/2836900
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* License: MIT
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*/
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/**
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* Modified by Starbeamrainbowlabs (starbeamrainbowlabs)
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*
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* Changed bold to use single asterisks
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* Changed italics to use single underscores
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* Added one to add the heading levels (no <h1> tags allowed)
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* Added wiki style internal link parsing
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* Added wiki style internal link parsing with display text
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* Added image support
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*/
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class Slimdown {
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public static $rules = array (
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'/\r\n/' => "\n", // new line normalisation
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'/^(#+)(.*)/' => 'self::header', // headers
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'/(\*+)(.*?)\1/' => '<strong>\2</strong>', // bold
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'/(_)(.*?)\1/' => '<em>\2</em>', // emphasis
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'/!\[(.*)\]\(([^\s]+)\s(\d+.+)\s(left|right)\)/' => '<img src="\2" alt="\1" style="max-width: \3; float: \4;" />', // images with size
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'/!\[(.*)\]\(([^\s]+)\s(\d+.+)\)/' => '<img src="\2" alt="\1" style="max-width: \3;" />', // images with size
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'/!\[(.*)\]\((.*)\)/' => '<img src="\2" alt="\1" />', // basic images
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'/\[\[([a-zA-Z0-9\_\- ]+)\|([a-zA-Z0-9\_\- ]+)\]\]/' => '<a href=\'index.php?page=\1\'>\2</a>', //internal links with display text
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'/\[\[([a-zA-Z0-9\_\- ]+)\]\]/' => '<a href=\'index.php?page=\1\'>\1</a>', //internal links
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'/\[([^\[]+)\]\(([^\)]+)\)/' => '<a href=\'\2\' target=\'_blank\'>\1</a>', // links
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'/\~\~(.*?)\~\~/' => '<del>\1</del>', // del
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'/\:\"(.*?)\"\:/' => '<q>\1</q>', // quote
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'/`(.*?)`/' => '<code>\1</code>', // inline code
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'/\n\s*(\*|-)(.*)/' => 'self::ul_list', // ul lists
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'/\n[0-9]+\.(.*)/' => 'self::ol_list', // ol lists
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'/\n(>|\>)(.*)/' => 'self::blockquote', // blockquotes
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'/\n-{3,}/' => "\n<hr />", // horizontal rule
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'/\n([^\n]+)\n\n/' => 'self::para', // add paragraphs
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'/<\/ul>\s?<ul>/' => '', // fix extra ul
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'/<\/ol>\s?<ol>/' => '', // fix extra ol
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'/<\/blockquote><blockquote>/' => "\n" // fix extra blockquote
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);
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private static function para ($regs) {
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$line = $regs[1];
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$trimmed = trim ($line);
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if (preg_match ('/^<\/?(ul|ol|li|h|p|bl)/', $trimmed)) {
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return "\n" . $line . "\n";
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}
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return sprintf ("\n<p>%s</p>\n", $trimmed);
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}
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private static function ul_list ($regs) {
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$item = $regs[2];
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return sprintf ("\n<ul>\n\t<li>%s</li>\n</ul>", trim($item));
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}
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private static function ol_list ($regs) {
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$item = $regs[1];
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return sprintf ("\n<ol>\n\t<li>%s</li>\n</ol>", trim($item));
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}
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private static function blockquote ($regs) {
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$item = $regs[2];
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return sprintf ("\n<blockquote>%s</blockquote>", trim($item));
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}
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private static function header ($regs) {
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list ($tmp, $chars, $header) = $regs;
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$level = strlen ($chars);
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return sprintf ('<h%d>%s</h%d>', $level + 1, trim($header), $level + 1);
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}
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/**
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* Add a rule.
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*/
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public static function add_rule ($regex, $replacement) {
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self::$rules[$regex] = $replacement;
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}
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/**
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* Render some Markdown into HTML.
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*/
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public static function render ($text) {
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foreach (self::$rules as $regex => $replacement) {
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if (is_callable ( $replacement)) {
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$text = preg_replace_callback ($regex, $replacement, $text);
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} else {
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$text = preg_replace ($regex, $replacement, $text);
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}
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}
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return trim ($text);
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}
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}
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///////////////////////////////////////////////////////////////////////////////
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///////////////////////////////////////////////////////////////////////////////
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?>
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