Add new element style 'enumeration', used for items in ordered lists

listitem.go

@@ -2,6 +2,7 @@ package gold
 
 import (
 	"io"
+	"strconv"
 
 	bf "gopkg.in/russross/blackfriday.v2"
 )
@@ -10,9 +11,27 @@ type ItemElement struct {
 }
 
 func (e *ItemElement) Render(w io.Writer, node *bf.Node, tr *TermRenderer) error {
-	el := &BaseElement{
-		Token: string(node.Literal),
-		Style: Item,
+	var el *BaseElement
+
+	if node.ListData.ListFlags&bf.ListTypeOrdered > 0 {
+		var l int64
+		n := node
+		for n.Prev != nil && (n.Prev.Type == bf.Item) {
+			l++
+			n = n.Prev
+		}
+
+		el = &BaseElement{
+			Token:  string(node.Literal),
+			Style:  Enumeration,
+			Prefix: strconv.FormatInt(l+1, 10),
+		}
+	} else {
+		el = &BaseElement{
+			Token: string(node.Literal),
+			Style: Item,
+		}
 	}
+
 	return el.Render(w, node, tr)
 }

style.go

@@ -11,6 +11,7 @@ const (
 	BlockQuote
 	List
 	Item
+	Enumeration
 	Paragraph
 	Heading
 	HorizontalRule
@@ -90,6 +91,8 @@ func keyToType(key string) (StyleType, error) {
 		return List, nil
 	case "item":
 		return Item, nil
+	case "enumeration":
+		return Enumeration, nil
 	case "paragraph":
 		return Paragraph, nil
 	case "heading":