reorganized code

helper/markdown.go

@@ -0,0 +1,29 @@
+package helper
+
+import (
+	"bytes"
+
+	"github.com/Depado/bfchroma"
+	"gopkg.in/russross/blackfriday.v2"
+)
+
+func RenderMarkdown(input []byte, chromaRenderer bool, chromaStyle string) []byte {
+	var options []blackfriday.Option
+
+	if chromaStyle == "" {
+		chromaStyle = "monokai"
+	}
+	if chromaRenderer {
+		options = []blackfriday.Option{
+			blackfriday.WithRenderer(
+				bfchroma.NewRenderer(
+					bfchroma.Style(chromaStyle),
+				),
+			),
+		}
+	}
+
+	// fix \r from markdown for blackfriday
+	input = bytes.Replace(input, []byte("\r"), []byte(""), -1)
+	return blackfriday.Run(input, options...)
+}