parser-parsedown: add markdown support to image captions

Changelog.md

@@ -21,6 +21,7 @@ This file holds the changelog for Pepperminty Wiki. This is the master list of t
  - A command-line interface!
      - Wiki administrators with terminal/console access can now make use of a brand-new CLI by executing `php ./index.php` (warning: strange things will happen if the current working directory is not the directory that contains index.php and peppermint.json)
  - Added new `anoncomments` setting to control whether anonymous users are allowed to make comments (disabled by default) - thanks to @SeanFromIT for suggesting it in #181
+ - Added markdown support for media captions (#184)
 
 ### Fixed
  - Fixed weighted word support on search query analysis debug page

modules/parser-parsedown.php

@@ -1,7 +1,7 @@
 <?php
 register_module([
 	"name" => "Parsedown",
-	"version" => "0.10.1",
+	"version" => "0.10.2",
 	"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 some weight to your installation.",
 	"extra_data" => [
@@ -993,7 +993,8 @@ class PeppermintParsedown extends ParsedownExtreme
 						$result["element"],
 						[
 							"name" => "figcaption",
-							"text" => $altText
+							// rawHtml is fine here 'cause we're using the output of $this->text(), which is safe
+							"rawHtml" => $this->text($altText),
 						],
 					],
 					"handler" => "elements"