From 351c69644bdbdf52c95e322904273657892920b5 Mon Sep 17 00:00:00 2001
From: Titus Wormer <tituswormer@gmail.com>
Date: Mon, 22 Aug 2022 11:50:42 +0200
Subject: Add support for GFM strikethrough

---
 src/compiler.rs | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

(limited to 'src/compiler.rs')

diff --git a/src/compiler.rs b/src/compiler.rs
index 2e13294..abf35c8 100644
--- a/src/compiler.rs
+++ b/src/compiler.rs
@@ -326,6 +326,7 @@ fn enter(context: &mut CompileContext) {
         Name::DefinitionDestinationString => on_enter_definition_destination_string(context),
         Name::Emphasis => on_enter_emphasis(context),
         Name::Frontmatter => on_enter_frontmatter(context),
+        Name::GfmStrikethrough => on_enter_gfm_strikethrough(context),
         Name::HtmlFlow => on_enter_html_flow(context),
         Name::HtmlText => on_enter_html_text(context),
         Name::Image => on_enter_image(context),
@@ -369,6 +370,7 @@ fn exit(context: &mut CompileContext) {
         Name::DefinitionTitleString => on_exit_definition_title_string(context),
         Name::Emphasis => on_exit_emphasis(context),
         Name::Frontmatter => on_exit_frontmatter(context),
+        Name::GfmStrikethrough => on_exit_gfm_strikethrough(context),
         Name::GfmAutolinkLiteralProtocol => on_exit_gfm_autolink_literal_protocol(context),
         Name::GfmAutolinkLiteralWww => on_exit_gfm_autolink_literal_www(context),
         Name::GfmAutolinkLiteralEmail => on_exit_gfm_autolink_literal_email(context),
@@ -467,6 +469,13 @@ fn on_enter_frontmatter(context: &mut CompileContext) {
     context.buffer();
 }
 
+/// Handle [`Enter`][Kind::Enter]:[`GfmStrikethrough`][Name::GfmStrikethrough].
+fn on_enter_gfm_strikethrough(context: &mut CompileContext) {
+    if !context.image_alt_inside {
+        context.push("<del>");
+    }
+}
+
 /// Handle [`Enter`][Kind::Enter]:[`HtmlFlow`][Name::HtmlFlow].
 fn on_enter_html_flow(context: &mut CompileContext) {
     context.line_ending_if_needed();
@@ -898,7 +907,7 @@ fn on_exit_definition_title_string(context: &mut CompileContext) {
     context.media_stack.last_mut().unwrap().title = Some(buf);
 }
 
-/// Handle [`Exit`][Kind::Exit]:[`Strong`][Name::Emphasis].
+/// Handle [`Exit`][Kind::Exit]:[`Emphasis`][Name::Emphasis].
 fn on_exit_emphasis(context: &mut CompileContext) {
     if !context.image_alt_inside {
         context.push("</em>");
@@ -942,6 +951,13 @@ fn on_exit_gfm_autolink_literal_email(context: &mut CompileContext) {
     on_exit_autolink_email(context);
 }
 
+/// Handle [`Exit`][Kind::Exit]:[`GfmStrikethrough`][Name::GfmStrikethrough].
+fn on_exit_gfm_strikethrough(context: &mut CompileContext) {
+    if !context.image_alt_inside {
+        context.push("</del>");
+    }
+}
+
 /// Handle [`Exit`][Kind::Exit]:[`HeadingAtx`][Name::HeadingAtx].
 fn on_exit_heading_atx(context: &mut CompileContext) {
     let rank = context
-- 
cgit