From 3f92bcc41b23ddd2e6042d6a03a1790fae189f51 Mon Sep 17 00:00:00 2001
From: Andreas <andreas@bocops.de>
Date: Wed, 16 Nov 2022 16:14:34 +0100
Subject: [PATCH] change regex matching potential hashtags

Matches any string starting with '#' and consisting of any number and combination of [A-Za-z0-9_] that is directly followed by whitespace or punctuation. Groups everything after '#' for access in functions using this regex.

This fixes #183 (incomplete links on hashtags containing special characters) by not matching these at all.
---
 activitypub.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/activitypub.php b/activitypub.php
index b05f8b9..290e79e 100644
--- a/activitypub.php
+++ b/activitypub.php
@@ -19,7 +19,7 @@ namespace Activitypub;
  * Initialize plugin
  */
 function init() {
-	\defined( 'ACTIVITYPUB_HASHTAGS_REGEXP' ) || \define( 'ACTIVITYPUB_HASHTAGS_REGEXP', '(?:(?<=\s)|^)#(\w*[A-Za-z_]+\w*)' );
+	\defined( 'ACTIVITYPUB_HASHTAGS_REGEXP' ) || \define( 'ACTIVITYPUB_HASHTAGS_REGEXP', '(?:(?<=\s)|^)#([A-Za-z0-9_]+)(?:(?=\s|[[:punct:]]))' );
 	\defined( 'ACTIVITYPUB_ALLOWED_HTML' ) || \define( 'ACTIVITYPUB_ALLOWED_HTML', '<strong><a><p><ul><ol><li><code><blockquote><pre><img>' );
 	\defined( 'ACTIVITYPUB_CUSTOM_POST_CONTENT' ) || \define( 'ACTIVITYPUB_CUSTOM_POST_CONTENT', "<p><strong>%title%</strong></p>\n\n%content%\n\n<p>%hashtags%</p>\n\n<p>%shortlink%</p>" );
 	\defined( 'ACTIVITYPUB_PLUGIN' ) || \define( 'ACTIVITYPUB_PLUGIN', __FILE__ );