Add GitHub style code fence support to mmark

Fixes #1258.

1 files changed, 17 insertions, 0 deletions

diff --git a/helpers/content_renderer.go b/helpers/content_renderer.go
index bb5b810ae..77db6833c 100644
--- a/helpers/content_renderer.go
+++ b/helpers/content_renderer.go
@@ -6,9 +6,11 @@ import (
 
 	"github.com/russross/blackfriday"
 	"github.com/spf13/viper"
+	"github.com/miekg/mmark"
 )
 
 // Wraps a blackfriday.Renderer, typically a blackfriday.Html
+// Enabling Hugo to customise the rendering experience
 type HugoHtmlRenderer struct {
 	blackfriday.Renderer
 }
@@ -21,3 +23,18 @@ func (renderer *HugoHtmlRenderer) BlockCode(out *bytes.Buffer, text []byte, lang
 		renderer.Renderer.BlockCode(out, text, lang)
 	}
 }
+
+// Wraps a mmark.Renderer, typically a mmark.html
+// Enabling Hugo to customise the rendering experience
+type HugoMmarkHtmlRenderer struct {
+	mmark.Renderer
+}
+
+func (renderer *HugoMmarkHtmlRenderer) BlockCode(out *bytes.Buffer, text []byte, lang string, caption []byte, subfigure bool, callouts bool) {
+	if viper.GetBool("PygmentsCodeFences") {
+		str := html.UnescapeString(string(text))
+		out.WriteString(Highlight(str, lang, ""))
+	} else {
+		renderer.Renderer.BlockCode(out, text, lang, caption, subfigure, callouts)
+	}
+}