mirror of
https://github.com/sbrl/Pepperminty-Wiki.git
synced 2024-11-29 06:23:01 +00:00
347 lines
12 KiB
PHP
347 lines
12 KiB
PHP
<?php
|
|
register_module([
|
|
"name" => "Parsedown",
|
|
"version" => "0.5.3",
|
|
"author" => "Emanuil Rusev & Starbeamrainbowlabs",
|
|
"description" => "An upgraded (now default!) parser based on Emanuil Rusev's Parsedown Extra PHP library (https://github.com/erusev/parsedown-extra), which is licensed MIT. Please be careful, as this module adds a some weight to your installation, and also *requires* write access to the disk on first load.",
|
|
"id" => "parser-parsedown",
|
|
"code" => function() {
|
|
global $settings;
|
|
|
|
$parser = new PeppermintParsedown();
|
|
$parser->setInternalLinkBase("?page=%s");
|
|
add_parser("parsedown", function($source) use ($parser) {
|
|
$result = $parser->text($source);
|
|
|
|
return $result;
|
|
});
|
|
|
|
add_help_section("20-parser-default", "Editor Syntax",
|
|
"<p>$settings->sitename's editor uses an extended version of <a href='http://parsedown.org/'>Parsedown</a> to render pages, which is a fantastic open source Github flavoured markdown parser. You can find a quick reference guide on Github flavoured markdown <a href='https://github.com/adam-p/markdown-here/wiki/Markdown-Cheatsheet'>here</a> by <a href='https://github.com/adam-p/'>adam-p</a>, or if you prefer a book <a href='https://www.gitbook.com/book/roachhd/master-markdown/details'>Mastering Markdown</a> by KB is a good read, and free too!</p>
|
|
<h3>Extra Syntax</h3>
|
|
<p>$settings->sitename's editor also supports some extra custom syntax, some of which is inspired by <a href='https://mediawiki.org/'>Mediawiki</a>.
|
|
<table>
|
|
<tr><th style='width: 40%'>Type this</th><th style='width: 20%'>To get this</th><th>Comments</th></th>
|
|
<tr><td><code>[[Internal link]]</code></td><td><a href='?page=Internal%20link'>Internal Link</a></td><td>An internal link.</td></tr>
|
|
<tr><td><code>[[Display Text|Internal link]]</code></td><td><a href='?page=Internal%20link'>Display Text</a></td><td>An internal link with some display text.</td></tr>
|
|
<tr><td><code></code></td><td><img src='http://example.com/path/to/image.png' alt='Alt text' style='float: right; max-width: 256px; max-height: 256px;' /></td><td>An image floating to the right of the page that fits inside a 256px x 256px box, preserving aspect ratio.</td></tr>
|
|
</table>
|
|
<h4>Templating</h4>
|
|
<p>$settings->sitename also supports including one page in another page as a <em>template</em>. The syntax is very similar to that of Mediawiki. For example, <code>{{Announcement banner}}</code> will include the contents of the \"Announcement banner\" page, assuming it exists.</p>
|
|
<p>You can also use variables. Again, the syntax here is very similar to that of Mediawiki - they can be referenced in the included page by surrrounding the variable name in triple curly braces (e.g. <code>{{{Announcement text}}}</code>), and set when including a page with the bar syntax (e.g. <code>{{Announcement banner | importance = high | text = Maintenance has been planned for tonight.}}</code>). Currently the only restriction in templates and variables is that you may not include a closing curly brace (<code>}</code>) in the page name, variable name, or value.</p>");
|
|
}
|
|
]);
|
|
|
|
/*** Parsedown versions ***
|
|
* Parsedown Core: 1.6.0 *
|
|
* Parsedown Extra: 0.7.0 *
|
|
**************************/
|
|
$env->parsedown_paths = new stdClass();
|
|
$env->parsedown_paths->parsedown = "https://cdn.rawgit.com/erusev/parsedown/3ebbd730b5c2cf5ce78bc1bf64071407fc6674b7/Parsedown.php";
|
|
$env->parsedown_paths->parsedown_extra = "https://cdn.rawgit.com/erusev/parsedown-extra/11a44e076d02ffcc4021713398a60cd73f78b6f5/ParsedownExtra.php";
|
|
|
|
// Download parsedown and parsedown extra if they don't already exist
|
|
if(!file_exists("./Parsedown.php") || filesize("./Parsedown.php") === 0)
|
|
file_put_contents("./Parsedown.php", fopen($env->parsedown_paths->parsedown, "r"));
|
|
if(!file_exists("./ParsedownExtra.php") || filesize("./ParsedownExtra.php") === 0)
|
|
file_put_contents("./ParsedownExtra.php", fopen($env->parsedown_paths->parsedown_extra, "r"));
|
|
|
|
require_once("./Parsedown.php");
|
|
require_once("./ParsedownExtra.php");
|
|
|
|
/*
|
|
* ██████ █████ ██████ ███████ ███████ ██████ ██████ ██ ██ ███ ██
|
|
* ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ████ ██
|
|
* ██████ ███████ ██████ ███████ █████ ██ ██ ██ ██ ██ █ ██ ██ ██ ██
|
|
* ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ███ ██ ██ ██ ██
|
|
* ██ ██ ██ ██ ██ ███████ ███████ ██████ ██████ ███ ███ ██ ████
|
|
*
|
|
* ███████ ██ ██ ████████ ███████ ███ ██ ███████ ██ ██████ ███ ██ ███████
|
|
* ██ ██ ██ ██ ██ ████ ██ ██ ██ ██ ██ ████ ██ ██
|
|
* █████ ███ ██ █████ ██ ██ ██ ███████ ██ ██ ██ ██ ██ ██ ███████
|
|
* ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██
|
|
* ███████ ██ ██ ██ ███████ ██ ████ ███████ ██ ██████ ██ ████ ███████
|
|
*/
|
|
class PeppermintParsedown extends ParsedownExtra
|
|
{
|
|
private $internalLinkBase = "./%s";
|
|
|
|
protected $maxParamDepth = 0;
|
|
protected $paramStack = [];
|
|
|
|
function __construct()
|
|
{
|
|
// Prioritise our internal link parsing over the regular link parsing
|
|
array_unshift($this->InlineTypes["["], "InternalLink");
|
|
// Prioritise our image parser over the regular image parser
|
|
array_unshift($this->InlineTypes["!"], "ExtendedImage");
|
|
|
|
$this->inlineMarkerList .= "{";
|
|
if(!isset($this->InlineTypes["{"]) or !is_array($this->InlineTypes["{"]))
|
|
$this->InlineTypes["{"] = [];
|
|
$this->InlineTypes["{"][] = "Template";
|
|
}
|
|
|
|
protected function inlineTemplate($fragment)
|
|
{
|
|
global $env;
|
|
|
|
// Variable parsing
|
|
if(preg_match("/\{\{\{([^}]+)\}\}\}/", $fragment["text"], $matches))
|
|
{
|
|
$stackEntry = array_slice($this->paramStack, -1)[0];
|
|
$params = !empty($stackEntry) ? $stackEntry["params"] : false;
|
|
|
|
$variableKey = trim($matches[1]);
|
|
|
|
$variableValue = false;
|
|
switch ($variableKey)
|
|
{
|
|
case "@":
|
|
if(!empty($params))
|
|
{
|
|
$variableValue = "<table>
|
|
<tr><th>Key</th><th>Value</th></tr>\n";
|
|
foreach($params as $key => $value)
|
|
{
|
|
$variableValue .= "\t<tr><td>" . $this->escapeText($key) . "</td><td>" . $this->escapeText($value) . "</td></tr>\n";
|
|
}
|
|
$variableValue .= "</table>";
|
|
}
|
|
break;
|
|
case "#":
|
|
$variableValue = "<ol start=\"0\">\n";
|
|
$variableValue .= "\t<li>$env->page</li>\n";
|
|
foreach($this->paramStack as $curStackEntry)
|
|
{
|
|
$variableValue .= "\t<li>" . $curStackEntry["pagename"] . "</li>\n";
|
|
}
|
|
$variableValue .= "</ol>\n";
|
|
}
|
|
if(isset($params[$variableKey]))
|
|
{
|
|
$variableValue = $params[$variableKey];
|
|
$variableValue = $this->escapeText($variableValue);
|
|
}
|
|
|
|
if($variableValue)
|
|
{
|
|
return [
|
|
"extent" => strlen($matches[0]),
|
|
"markup" => $variableValue
|
|
];
|
|
}
|
|
}
|
|
else if(preg_match("/\{\{([^}]+)\}\}/", $fragment["text"], $matches))
|
|
{
|
|
$templateElement = $this->templateHandler($matches[1]);
|
|
|
|
if(!empty($templateElement))
|
|
{
|
|
return [
|
|
"extent" => strlen($matches[0]),
|
|
"element" => $templateElement
|
|
];
|
|
}
|
|
}
|
|
}
|
|
|
|
protected function templateHandler($source)
|
|
{
|
|
global $pageindex, $paths;
|
|
|
|
|
|
$parts = explode("|", trim($source, "{}"));
|
|
$parts = array_map(trim, $parts);
|
|
|
|
// Extract the name of the temaplate page
|
|
$templatePagename = array_shift($parts);
|
|
// If the page that we are supposed to use as the tempalte doesn't
|
|
// exist, then there's no point in continuing.
|
|
if(empty($pageindex->$templatePagename))
|
|
return false;
|
|
|
|
// Parse the parameters
|
|
$this->maxParamDepth++;
|
|
$params = [];
|
|
$i = 0;
|
|
foreach($parts as $part)
|
|
{
|
|
if(strpos($part, "=") !== false)
|
|
{
|
|
// This param contains an equals sign, so it's a named parameter
|
|
$keyValuePair = explode("=", $part, 2);
|
|
$keyValuePair = array_map(trim, $keyValuePair);
|
|
$params[$keyValuePair[0]] = $keyValuePair[1];
|
|
}
|
|
else
|
|
{
|
|
// This isn't a named parameter
|
|
$params["$i"] = trim($part);
|
|
|
|
$i++;
|
|
}
|
|
}
|
|
// Add the parsed parameters to the parameter stack
|
|
$this->paramStack[] = [
|
|
"pagename" => $templatePagename,
|
|
"params" => $params
|
|
];
|
|
|
|
$templateFilePath = $paths->storage_prefix . $pageindex->$templatePagename->filename;
|
|
|
|
$parsedTemplateSource = $this->text(file_get_contents($templateFilePath));
|
|
|
|
// Remove the parsed parameters from the stack
|
|
array_pop($this->paramStack);
|
|
|
|
return [
|
|
"name" => "div",
|
|
"text" => $parsedTemplateSource,
|
|
"attributes" => [
|
|
"class" => "template"
|
|
]
|
|
];
|
|
}
|
|
|
|
protected function inlineInternalLink($fragment)
|
|
{
|
|
if(preg_match('/^\[\[(.*)\]\]/', $fragment["text"], $matches))
|
|
{
|
|
$display = $linkPage = $matches[1];
|
|
if(strpos($matches[1], "|"))
|
|
{
|
|
// We have a bar character
|
|
$parts = explode("|", $matches[1], 2);
|
|
$linkPage = $parts[0];
|
|
$display = $parts[1];
|
|
}
|
|
|
|
// Construct the full url
|
|
$linkUrl = str_replace(
|
|
"%s", rawurlencode($linkPage),
|
|
$this->internalLinkBase
|
|
);
|
|
|
|
return [
|
|
"extent" => strlen($matches[0]),
|
|
"element" => [
|
|
"name" => "a",
|
|
"text" => $display,
|
|
"attributes" => [
|
|
"href" => $linkUrl
|
|
]
|
|
]
|
|
];
|
|
}
|
|
return;
|
|
}
|
|
|
|
protected function inlineExtendedImage($fragment)
|
|
{
|
|
if(preg_match('/^!\[(.*)\]\(([^ |)]+)\s*\|([^|)]*)(?:\|([^)]*))?\)/', $fragment["text"], $matches))
|
|
{
|
|
/*
|
|
* 0 - Everything
|
|
* 1 - Alt text
|
|
* 2 - Url
|
|
* 3 - First param
|
|
* 4 - Second Param (optional)
|
|
*/
|
|
|
|
var_dump($matches);
|
|
|
|
$altText = $matches[1];
|
|
$imageUrl = $matches[2];
|
|
$param1 = strtolower(trim($matches[3]));
|
|
$param2 = empty($matches[4]) ? false : strtolower(trim($matches[4]));
|
|
$floatDirection = false;
|
|
$imageSize = false;
|
|
|
|
if($this->isFloatValue($param1))
|
|
{
|
|
$floatDirection = $param1;
|
|
$imageSize = $this->parseSizeSpec($param2);
|
|
}
|
|
else if($this->isFloatValue($param2))
|
|
{
|
|
$floatDirection = $param2;
|
|
$imageSize = $this->parseSizeSpec($param1);
|
|
}
|
|
else
|
|
{
|
|
$imageSize = $this->parseSizeSpec($param1);
|
|
}
|
|
|
|
// If they are both invalid then something very strange is going on
|
|
// Let the built in parsedown image handler deal with it
|
|
if($imageSize === false && $floatDirection === false)
|
|
return;
|
|
|
|
$style = "";
|
|
if($imageSize !== false)
|
|
$style .= " max-width: " . $imageSize["x"] . "px; max-height: " . $imageSize["y"] . "px;";
|
|
if($floatDirection)
|
|
$style .= " float: $floatDirection;";
|
|
|
|
return [
|
|
"extent" => strlen($matches[0]),
|
|
"element" => [
|
|
"name" => "img",
|
|
"attributes" => [
|
|
"src" => $imageUrl,
|
|
"alt" => $altText,
|
|
"style" => trim($style)
|
|
]
|
|
]
|
|
];
|
|
}
|
|
}
|
|
|
|
# ~
|
|
# Utility Methods
|
|
# ~
|
|
|
|
private function isFloatValue($value)
|
|
{
|
|
return in_array(strtolower($value), [ "left", "right" ]);
|
|
}
|
|
|
|
private function parseSizeSpec($text)
|
|
{
|
|
if(strpos($text, "x") === false)
|
|
return false;
|
|
$parts = explode("x", $text, 2);
|
|
|
|
if(count($parts) != 2)
|
|
return false;
|
|
|
|
array_map("trim", $parts);
|
|
array_map("intval", $parts);
|
|
|
|
if(in_array(0, $parts))
|
|
return false;
|
|
|
|
return [
|
|
"x" => $parts[0],
|
|
"y" => $parts[1]
|
|
];
|
|
}
|
|
|
|
protected function escapeText($text)
|
|
{
|
|
return htmlentities($text, ENT_COMPAT | ENT_HTML5);
|
|
}
|
|
|
|
/**
|
|
* Sets the base url to be used for internal links. '%s' will be replaced
|
|
* with a URL encoded version of the page name.
|
|
* @param string $url The url to use when parsing internal links.
|
|
*/
|
|
public function setInternalLinkBase($url)
|
|
{
|
|
$this->internalLinkBase = $url;
|
|
}
|
|
}
|
|
|
|
?>
|