From f65d5210f892220f637e1c32db53bc35d2501df5 Mon Sep 17 00:00:00 2001
From: Lennard Hofmann <lennard.hofmann@web.de>
Date: Tue, 5 Jan 2021 18:51:37 +0100
Subject: [PATCH 1/2] rc markdown: Prevent underscores in URLs cause italic
 highlighting

Create regions to achieve that. Add support for inline links.
---
 rc/filetype/markdown.kak | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/rc/filetype/markdown.kak b/rc/filetype/markdown.kak
index be7678c97..5a65a5d7c 100644
--- a/rc/filetype/markdown.kak
+++ b/rc/filetype/markdown.kak
@@ -59,9 +59,17 @@ add-highlighter shared/markdown/codeblock region -match-capture \
     ^(\h*)```\h*$ \
     fill meta
 
-add-highlighter shared/markdown/listblock region ^\h*[-*]\s ^\h*((?=[-*])|$) group
-add-highlighter shared/markdown/listblock/ ref markdown/inline
-add-highlighter shared/markdown/listblock/marker regex ^\h*([-*])\s 1:bullet
+add-highlighter shared/markdown/listblock region ^\h*[-*]\s ^\h*((?=[-*])|$) regions
+add-highlighter shared/markdown/listblock/g default-region group
+add-highlighter shared/markdown/listblock/g/ ref markdown/inline
+add-highlighter shared/markdown/listblock/g/marker regex ^\h*([-*])\s 1:bullet
+
+# https://spec.commonmark.org/0.29/#link-destination
+# This repetition is not pretty but shell escaping is worse
+add-highlighter shared/markdown/angle_bracket_url region (?<=<)([a-z]+://|(mailto|magnet|xmpp):) (?!\\).(?=>)|\n fill link
+add-highlighter shared/markdown/url region -recurse \( ([a-z]+://|(mailto|magnet|xmpp):) (?!\\).(?=\))|\s fill link
+add-highlighter shared/markdown/listblock/angle_bracket_url region (?<=<)([a-z]+://|(mailto|magnet|xmpp):) (?!\\).(?=>)|\n fill link
+add-highlighter shared/markdown/listblock/url region -recurse \( ([a-z]+://|(mailto|magnet|xmpp):) (?!\\).(?=\))|\s fill link
 
 add-highlighter shared/markdown/inline/code region -match-capture (`+) (`+) fill mono
 
@@ -76,8 +84,6 @@ add-highlighter shared/markdown/inline/text/ regex (?<!\*)(\*([^\s*]|([^\s*](\n?
 add-highlighter shared/markdown/inline/text/ regex (?<!_)(_([^\s_]|([^\s_](\n?[^\n_])*[^\s_]))_)(?!_) 1:+i
 add-highlighter shared/markdown/inline/text/ regex (?<!\*)(\*\*([^\s*]|([^\s*](\n?[^\n*])*[^\s*]))\*\*)(?!\*) 1:+b
 add-highlighter shared/markdown/inline/text/ regex (?<!_)(__([^\s_]|([^\s_](\n?[^\n_])*[^\s_]))__)(?!_) 1:+b
-add-highlighter shared/markdown/inline/text/ regex <(([a-z]+://.*?)|((mailto:)?[\w+-]+@[a-z]+[.][a-z]+))> 0:link
-add-highlighter shared/markdown/inline/text/ regex ^\[[^\]\n]*\]:\h*([^\n]*) 1:link
 add-highlighter shared/markdown/inline/text/ regex ^\h*(>\h*)+ 0:comment
 add-highlighter shared/markdown/inline/text/ regex "\H( {2,})$" 1:+r@meta
 

From 61fabee03f5b175f85608d3035e84a8ff309cb99 Mon Sep 17 00:00:00 2001
From: Lennard Hofmann <lennard.hofmann@web.de>
Date: Tue, 5 Jan 2021 19:09:33 +0100
Subject: [PATCH 2/2] rc markdown: Highlight HTML tags

---
 rc/filetype/markdown.kak | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/rc/filetype/markdown.kak b/rc/filetype/markdown.kak
index 5a65a5d7c..78d93c985 100644
--- a/rc/filetype/markdown.kak
+++ b/rc/filetype/markdown.kak
@@ -71,6 +71,11 @@ add-highlighter shared/markdown/url region -recurse \( ([a-z]+://|(mailto|magnet
 add-highlighter shared/markdown/listblock/angle_bracket_url region (?<=<)([a-z]+://|(mailto|magnet|xmpp):) (?!\\).(?=>)|\n fill link
 add-highlighter shared/markdown/listblock/url region -recurse \( ([a-z]+://|(mailto|magnet|xmpp):) (?!\\).(?=\))|\s fill link
 
+try %{
+    require-module html
+    add-highlighter shared/markdown/tag region (?i)</?[a-z][a-z0-9-]*\s*([a-z_:]|(?=>)) > ref html/tag
+}
+
 add-highlighter shared/markdown/inline/code region -match-capture (`+) (`+) fill mono
 
 # Setext-style header