From 891dff54a92b04cda36da7fbc6634831c3389d29 Mon Sep 17 00:00:00 2001
From: Joseph Adams <jcla1@users.noreply.github.com>
Date: Mon, 24 Jan 2022 19:18:41 +0100
Subject: [PATCH] Adding strikethrough support via the `htmlStrike` highlight
 group

Co-authored-by: Rodrigo Haenggi <rodrigo@codegestalt.com>
---
 syntax/markdown.vim | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/syntax/markdown.vim b/syntax/markdown.vim
index e0a09dc..583767b 100644
--- a/syntax/markdown.vim
+++ b/syntax/markdown.vim
@@ -116,6 +116,7 @@ exe 'syn region markdownBold matchgroup=markdownBoldDelimiter start="\*\*\S\@="
 exe 'syn region markdownBold matchgroup=markdownBoldDelimiter start="\w\@<!__\S\@=" end="\S\@<=__\w\@!\|^$" skip="\\_" contains=markdownLineStart,markdownItalic,@Spell' . s:concealends
 exe 'syn region markdownBoldItalic matchgroup=markdownBoldItalicDelimiter start="\*\*\*\S\@=" end="\S\@<=\*\*\*\|^$" skip="\\\*" contains=markdownLineStart,@Spell' . s:concealends
 exe 'syn region markdownBoldItalic matchgroup=markdownBoldItalicDelimiter start="\w\@<!___\S\@=" end="\S\@<=___\w\@!\|^$" skip="\\_" contains=markdownLineStart,@Spell' . s:concealends
+exe 'syn region markdownStrike matchgroup=markdownStrikeDelimiter start="\~\~\S\@=" end="\S\@<=\~\~\|^$" contains=markdownLineStart,@Spell' . s:concealends
 
 syn region markdownCode matchgroup=markdownCodeDelimiter start="`" end="`" keepend contains=markdownLineStart
 syn region markdownCode matchgroup=markdownCodeDelimiter start="`` \=" end=" \=``" keepend contains=markdownLineStart
@@ -180,6 +181,9 @@ hi def link markdownBold                  htmlBold
 hi def link markdownBoldDelimiter         markdownBold
 hi def link markdownBoldItalic            htmlBoldItalic
 hi def link markdownBoldItalicDelimiter   markdownBoldItalic
+hi def link markdownStrike                htmlStrike
+hi def link markdownStrikeDelimiter       markdownStrike
+
 hi def link markdownCodeDelimiter         Delimiter
 
 hi def link markdownEscape                Special