Switch to goldmark parser

checkeditem.go

@@ -0,0 +1,25 @@
+package gold
+
+import (
+	"io"
+)
+
+type CheckedItemElement struct {
+	Checked bool
+}
+
+func (e *CheckedItemElement) Render(w io.Writer, ctx RenderContext) error {
+	var el *BaseElement
+
+	pre := "✗ "
+	if e.Checked {
+		pre = "✓ "
+	}
+
+	el = &BaseElement{
+		Prefix: pre,
+		Style:  ctx.style[CheckedItem],
+	}
+
+	return el.Render(w, ctx)
+}

elements.go

@@ -1,9 +1,12 @@
 package gold
 
 import (
+	"bytes"
+	"fmt"
 	"io"
 
-	bf "gopkg.in/russross/blackfriday.v2"
+	"github.com/yuin/goldmark/ast"
+	astext "github.com/yuin/goldmark/extension/ast"
 )
 
 type ElementRenderer interface {
@@ -21,210 +24,279 @@ type Element struct {
 	Finisher ElementFinisher
 }
 
-func (tr *TermRenderer) NewElement(node *bf.Node) Element {
+func (tr *TermRenderer) NewElement(node ast.Node, source []byte) Element {
 	ctx := tr.context
+	// fmt.Print(strings.Repeat("  ", ctx.blockStack.Len()), node.Type(), node.Kind())
+	// defer fmt.Println()
 
-	switch node.Type {
-	case bf.Document:
-		de := &DocumentElement{}
+	switch node.Kind() {
+	// Document
+	case ast.KindDocument:
 		return Element{
-			Renderer: de,
-			Finisher: de,
+			Renderer: &DocumentElement{},
+			Finisher: &DocumentElement{},
+		}
+
+	// Heading
+	case ast.KindHeading:
+		n := node.(*ast.Heading)
+		he := &HeadingElement{
+			Level: n.Level,
+			First: node.PreviousSibling() == nil,
+		}
+		return Element{
+			Exiting:  "",
+			Renderer: he,
+			Finisher: he,
+		}
+
+	// Paragraph
+	case ast.KindParagraph:
+		return Element{
+			Renderer: &ParagraphElement{},
+			Finisher: &ParagraphElement{},
+		}
+
+	// Blockquote
+	case ast.KindBlockquote:
+		e := &BlockElement{
+			Block:  &bytes.Buffer{},
+			Style:  cascadeStyle(ctx.blockStack.Current().Style, ctx.style[BlockQuote], true),
+			Margin: true,
 		}
-	case bf.BlockQuote:
 		return Element{
 			Entering: "\n",
-			Exiting:  "\n",
-			Renderer: &BaseElement{
-				Token: string(node.Literal),
-				Style: ctx.style[BlockQuote],
-			},
+			Renderer: e,
+			Finisher: e,
 		}
-	case bf.List:
-		le := &ListElement{
-			Nested: node.Parent.Type == bf.Item,
+
+	// Lists
+	case ast.KindList:
+		e := &BlockElement{
+			Block:  &bytes.Buffer{},
+			Style:  cascadeStyle(ctx.blockStack.Current().Style, ctx.style[List], true),
+			Margin: true,
 		}
 		return Element{
-			Renderer: le,
-			Finisher: le,
+			Entering: "\n",
+			Renderer: e,
+			Finisher: e,
 		}
-	case bf.Item:
+
+	case ast.KindListItem:
 		var l uint
-		if node.ListData.ListFlags&bf.ListTypeOrdered > 0 {
-			l = 1
-			n := node
-			for n.Prev != nil && (n.Prev.Type == bf.Item) {
-				l++
-				n = n.Prev
+		var e uint
+		l = 1
+		n := node
+		for n.PreviousSibling() != nil && (n.PreviousSibling().Kind() == ast.KindListItem) {
+			l++
+			n = n.PreviousSibling()
+		}
+		if node.Parent().(*ast.List).IsOrdered() {
+			e = l
+		}
+
+		post := "\n"
+		if node.LastChild().Kind() == ast.KindList || node.NextSibling() == nil {
+			post = ""
+		}
+
+		if node.FirstChild().FirstChild().Kind() == astext.KindTaskCheckBox {
+			nc := node.FirstChild().FirstChild().(*astext.TaskCheckBox)
+
+			return Element{
+				Exiting: post,
+				Renderer: &CheckedItemElement{
+					Checked: nc.IsChecked,
+				},
 			}
 		}
 
 		return Element{
+			Exiting: post,
 			Renderer: &ItemElement{
-				Text:        string(node.Literal),
-				Enumeration: l,
+				Enumeration: e,
 			},
 		}
-	case bf.Paragraph:
-		pe := &ParagraphElement{
-			InsideList: node.Parent != nil && node.Parent.Type == bf.Item,
+
+	// Text Elements
+	case ast.KindText:
+		n := node.(*ast.Text)
+		s := string(n.Segment.Value(source))
+
+		if n.HardLineBreak() || (n.SoftLineBreak()) {
+			s += "\n"
 		}
 		return Element{
-			Renderer: pe,
-			Finisher: pe,
-		}
-	case bf.Heading:
-		return Element{
-			Exiting: "\n",
-			Renderer: &HeadingElement{
-				Text:  string(node.FirstChild.Literal),
-				Level: node.HeadingData.Level,
-				First: node.Prev == nil,
+			Renderer: &BaseElement{
+				Token: ctx.SanitizeHTML(s, false),
+				Style: ctx.style[Text],
 			},
 		}
-	case bf.HorizontalRule:
+
+	case ast.KindEmphasis:
+		n := node.(*ast.Emphasis)
+		s := string(n.Text(source))
+		style := ctx.style[Emph]
+		if n.Level > 1 {
+			style = ctx.style[Strong]
+		}
+
+		return Element{
+			Renderer: &BaseElement{
+				Token: ctx.SanitizeHTML(s, false),
+				Style: style,
+			},
+		}
+
+	case ast.KindThematicBreak:
 		return Element{
 			Entering: "",
-			Exiting:  "\n",
+			Exiting:  "",
 			Renderer: &BaseElement{
 				Style: ctx.style[HorizontalRule],
 			},
 		}
-	case bf.Emph:
-		return Element{
-			Renderer: &BaseElement{
-				Token: string(node.FirstChild.Literal),
-				Style: ctx.style[Emph],
-			},
-		}
-	case bf.Strong:
-		return Element{
-			Renderer: &BaseElement{
-				Token: string(node.FirstChild.Literal),
-				Style: ctx.style[Strong],
-			},
-		}
-	case bf.Del:
-		return Element{
-			Renderer: &BaseElement{
-				Token: string(node.Literal),
-				Style: ctx.style[Del],
-			},
-		}
-	case bf.Link:
-		var text string
-		if node.LastChild != nil {
-			text = string(node.LastChild.Literal)
-		}
+
+	// Links
+	case ast.KindLink:
+		n := node.(*ast.Link)
+		text := string(n.Text(source))
 		return Element{
 			Renderer: &LinkElement{
 				Text:    text,
-				BaseURL: tr.context.options.BaseURL,
-				URL:     string(node.LinkData.Destination),
+				BaseURL: ctx.options.BaseURL,
+				URL:     string(n.Destination),
 			},
 		}
-	case bf.Image:
-		var text string
-		if node.LastChild != nil {
-			text = string(node.LastChild.Literal)
+	case ast.KindAutoLink:
+		n := node.(*ast.AutoLink)
+		text := string(n.Text(source))
+		return Element{
+			Renderer: &LinkElement{
+				Text:    text,
+				BaseURL: ctx.options.BaseURL,
+				URL:     string(n.URL(source)),
+			},
 		}
+
+	// Images
+	case ast.KindImage:
+		n := node.(*ast.Image)
+		text := string(n.Text(source))
 		return Element{
 			Renderer: &ImageElement{
 				Text:    text,
-				BaseURL: tr.context.options.BaseURL,
-				URL:     string(node.LinkData.Destination),
+				BaseURL: ctx.options.BaseURL,
+				URL:     string(n.Destination),
 			},
 		}
-	case bf.Text:
-		return Element{
-			Renderer: &BaseElement{
-				Token: tr.context.SanitizeHTML(string(node.Literal), false),
-				Style: ctx.style[Text],
-			},
+
+	// Code
+	case ast.KindFencedCodeBlock:
+		n := node.(*ast.FencedCodeBlock)
+		l := n.Lines().Len()
+		s := ""
+		for i := 0; i < l; i++ {
+			line := n.Lines().At(i)
+			s += string(line.Value(source))
 		}
-	case bf.HTMLBlock:
-		return Element{
-			Renderer: &BaseElement{
-				Token: tr.context.SanitizeHTML(string(node.Literal), true) + "\n",
-				Style: ctx.style[HTMLBlock],
-			},
-		}
-	case bf.CodeBlock:
 		return Element{
 			Entering: "\n",
 			Renderer: &CodeBlockElement{
-				Code:     string(node.Literal),
-				Language: string(node.CodeBlockData.Info),
+				Code:     s,
+				Language: string(n.Language(source)),
 			},
 		}
-	case bf.Softbreak:
+
+	case ast.KindCodeBlock:
+		n := node.(*ast.CodeBlock)
+		l := n.Lines().Len()
+		s := ""
+		for i := 0; i < l; i++ {
+			line := n.Lines().At(i)
+			s += string(line.Value(source))
+		}
 		return Element{
-			Exiting: "\n",
-			Renderer: &BaseElement{
-				Token: string(node.Literal),
-				Style: ctx.style[Softbreak],
+			Entering: "\n",
+			Renderer: &CodeBlockElement{
+				Code: s,
 			},
 		}
-	case bf.Hardbreak:
+
+	case ast.KindCodeSpan:
+		// n := node.(*ast.CodeSpan)
+		e := &BlockElement{
+			Block: &bytes.Buffer{},
+			Style: cascadeStyle(ctx.blockStack.Current().Style, ctx.style[Code], true),
+		}
 		return Element{
-			Exiting: "\n",
-			Renderer: &BaseElement{
-				Token: string(node.Literal),
-				Style: ctx.style[Hardbreak],
-			},
+			Renderer: e,
+			Finisher: e,
 		}
-	case bf.Code:
-		return Element{
-			Renderer: &BaseElement{
-				Token: string(node.Literal),
-				Style: ctx.style[Code],
-			},
-		}
-	case bf.HTMLSpan:
-		return Element{
-			Renderer: &BaseElement{
-				Token: tr.context.SanitizeHTML(string(node.Literal), true) + "\n",
-				Style: ctx.style[HTMLSpan],
-			},
-		}
-	case bf.Table:
+
+	// Tables
+	case astext.KindTable:
 		te := &TableElement{}
 		return Element{
 			Entering: "\n",
 			Renderer: te,
 			Finisher: te,
 		}
-	case bf.TableCell:
+
+	case astext.KindTableCell:
 		s := ""
-		n := node.FirstChild
+		n := node.FirstChild()
 		for n != nil {
-			s += string(n.Literal)
-			s += string(n.LinkData.Destination)
-			n = n.Next
+			s += string(n.Text(source))
+			// s += string(n.LinkData.Destination)
+			n = n.NextSibling()
 		}
 
 		return Element{
 			Renderer: &TableCellElement{
 				Text: s,
-				Head: node.Parent.Parent.Type == bf.TableHead,
+				Head: node.Parent().Kind() == astext.KindTableHeader,
 			},
 		}
-	case bf.TableHead:
+
+	case astext.KindTableHeader:
 		return Element{
 			Finisher: &TableHeadElement{},
 		}
-	case bf.TableBody:
-		return Element{}
-	case bf.TableRow:
+	case astext.KindTableRow:
 		return Element{
 			Finisher: &TableRowElement{},
 		}
 
-	default:
+	// HTML Elements
+	case ast.KindHTMLBlock:
+		n := node.(*ast.HTMLBlock)
 		return Element{
 			Renderer: &BaseElement{
-				Token: string(node.Literal),
+				Token: ctx.SanitizeHTML(string(n.Text(source)), true) + "\n",
+				Style: ctx.style[HTMLBlock],
 			},
 		}
+	case ast.KindRawHTML:
+		n := node.(*ast.RawHTML)
+		return Element{
+			Renderer: &BaseElement{
+				Token: ctx.SanitizeHTML(string(n.Text(source)), true) + "\n",
+				Style: ctx.style[HTMLSpan],
+			},
+		}
+
+	// Handled by parents
+	case astext.KindTaskCheckBox:
+		// handled by KindListItem
+		return Element{}
+	case ast.KindTextBlock:
+		return Element{}
+
+	// Unknown case
+	default:
+		fmt.Println("Warning: unhandled element", node.Kind().String())
+		return Element{}
 	}
 }

go.mod

@@ -14,5 +14,6 @@ require (
 	github.com/rakyll/statik v0.1.6
 	github.com/shurcooL/sanitized_anchor_name v1.0.0 // indirect
 	github.com/spf13/cobra v0.0.5
+	github.com/yuin/goldmark v1.1.14
 	gopkg.in/russross/blackfriday.v2 v2.0.0
 )

go.sum

@@ -87,6 +87,8 @@ github.com/ugorji/go/codec v0.0.0-20181204163529-d75b2dcb6bc8/go.mod h1:VFNgLljT
 github.com/valyala/bytebufferpool v1.0.0/go.mod h1:6bBcMArwyJ5K/AmCkWv1jt77kVWyCJ6HpOuEn7z0Csc=
 github.com/valyala/fasttemplate v1.0.1/go.mod h1:UQGH1tvbgY+Nz5t2n7tXsz52dQxojPUpymEIMZ47gx8=
 github.com/xordataexchange/crypt v0.0.3-0.20170626215501-b2862e3d0a77/go.mod h1:aYKd//L2LvnjZzWKhF00oedf4jCCReLcmhLdhm1A27Q=
+github.com/yuin/goldmark v1.1.14 h1:9/OvYI+gdtQ5EAZY0y4kuVnuKjlE03BRqTw/njWYRNo=
+github.com/yuin/goldmark v1.1.14/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 golang.org/x/crypto v0.0.0-20181203042331-505ab145d0a9/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/net v0.0.0-20181220203305-927f97764cc3 h1:eH6Eip3UpmR+yM/qI9Ijluzb1bNv/cAU/n+6l8tRSis=
 golang.org/x/net v0.0.0-20181220203305-927f97764cc3/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=

gold.go

@@ -1,6 +1,7 @@
 package gold
 
 import (
+	"bytes"
 	"encoding/json"
 	"fmt"
 	"io"
@@ -8,6 +9,13 @@ import (
 	"net/url"
 	"strings"
 
+	"github.com/yuin/goldmark"
+	"github.com/yuin/goldmark/ast"
+	"github.com/yuin/goldmark/extension"
+	astext "github.com/yuin/goldmark/extension/ast"
+	"github.com/yuin/goldmark/parser"
+	"github.com/yuin/goldmark/renderer"
+	"github.com/yuin/goldmark/util"
 	bf "gopkg.in/russross/blackfriday.v2"
 )
 
@@ -83,21 +91,83 @@ func (tr *TermRenderer) Render(in string) string {
 
 // RenderBytes returns the markdown rendered into a byte slice.
 func (tr *TermRenderer) RenderBytes(in []byte) []byte {
-	return bf.Run(in, bf.WithRenderer(tr))
+	md := goldmark.New(
+		goldmark.WithExtensions(extension.GFM),
+		goldmark.WithParserOptions(
+			parser.WithAutoHeadingID(),
+		),
+	)
+	md.SetRenderer(
+		renderer.NewRenderer(
+			renderer.WithNodeRenderers(util.Prioritized(tr, 1000))))
+
+	var buf bytes.Buffer
+	if err := md.Convert(in, &buf); err != nil {
+		panic(err)
+	}
+	return buf.Bytes()
 }
 
-// RenderNode renders a single markdown node.
-func (tr *TermRenderer) RenderNode(w io.Writer, node *bf.Node, entering bool) bf.WalkStatus {
+// RegisterFuncs implements NodeRenderer.RegisterFuncs .
+func (r *TermRenderer) RegisterFuncs(reg renderer.NodeRendererFuncRegisterer) {
+	// blocks
+	reg.Register(ast.KindDocument, r.renderNode)
+	reg.Register(ast.KindHeading, r.renderNode)
+	reg.Register(ast.KindBlockquote, r.renderNode)
+	reg.Register(ast.KindCodeBlock, r.renderNode)
+	reg.Register(ast.KindFencedCodeBlock, r.renderNode)
+	reg.Register(ast.KindHTMLBlock, r.renderNode)
+	reg.Register(ast.KindList, r.renderNode)
+	reg.Register(ast.KindListItem, r.renderNode)
+	reg.Register(ast.KindParagraph, r.renderNode)
+	reg.Register(ast.KindTextBlock, r.renderNode)
+	reg.Register(ast.KindThematicBreak, r.renderNode)
+
+	// inlines
+	reg.Register(ast.KindAutoLink, r.renderNode)
+	reg.Register(ast.KindCodeSpan, r.renderNode)
+	reg.Register(ast.KindEmphasis, r.renderNode)
+	reg.Register(ast.KindImage, r.renderNode)
+	reg.Register(ast.KindLink, r.renderNode)
+	reg.Register(ast.KindRawHTML, r.renderNode)
+	reg.Register(ast.KindText, r.renderNode)
+	reg.Register(ast.KindString, r.renderNode)
+
+	// tables
+	reg.Register(astext.KindTable, r.renderNode)
+	reg.Register(astext.KindTableHeader, r.renderNode)
+	reg.Register(astext.KindTableRow, r.renderNode)
+	reg.Register(astext.KindTableCell, r.renderNode)
+
+	// definitions
+	reg.Register(astext.KindDefinitionList, r.renderNode)
+	reg.Register(astext.KindDefinitionTerm, r.renderNode)
+	reg.Register(astext.KindDefinitionDescription, r.renderNode)
+
+	// footnotes
+	reg.Register(astext.KindFootnote, r.renderNode)
+	reg.Register(astext.KindFootnoteList, r.renderNode)
+	reg.Register(astext.KindFootnoteLink, r.renderNode)
+	reg.Register(astext.KindFootnoteBackLink, r.renderNode)
+
+	// checkboxes
+	reg.Register(astext.KindTaskCheckBox, r.renderNode)
+
+	// strikethrough
+	reg.Register(astext.KindStrikethrough, r.renderNode)
+}
+
+func (tr *TermRenderer) renderNode(w util.BufWriter, source []byte, node ast.Node, entering bool) (ast.WalkStatus, error) {
 	// _, _ = w.Write([]byte(node.Type.String()))
-	writeTo := w
+	writeTo := io.Writer(w)
 	bs := tr.context.blockStack
 
 	// children get rendered by their parent
 	if isChild(node) {
-		return bf.GoToNext
+		return ast.WalkContinue, nil
 	}
 
-	e := tr.NewElement(node)
+	e := tr.NewElement(node, source)
 	if entering {
 		// everything below the Document element gets rendered into a block buffer
 		if bs.Len() > 0 {
@@ -108,8 +178,7 @@ func (tr *TermRenderer) RenderNode(w io.Writer, node *bf.Node, entering bool) bf
 		if e.Renderer != nil {
 			err := e.Renderer.Render(writeTo, tr.context)
 			if err != nil {
-				fmt.Println(err)
-				return bf.Terminate
+				return ast.WalkStop, err
 			}
 		}
 	} else {
@@ -120,21 +189,20 @@ func (tr *TermRenderer) RenderNode(w io.Writer, node *bf.Node, entering bool) bf
 
 		// if we're finished rendering the entire document,
 		// flush to the real writer
-		if node.Type == bf.Document {
+		if node.Type() == ast.TypeDocument {
 			writeTo = w
 		}
 
 		if e.Finisher != nil {
 			err := e.Finisher.Finish(writeTo, tr.context)
 			if err != nil {
-				fmt.Println(err)
-				return bf.Terminate
+				return ast.WalkStop, err
 			}
 		}
-		_, _ = writeTo.Write([]byte(e.Exiting))
+		_, _ = bs.Current().Block.Write([]byte(e.Exiting))
 	}
 
-	return bf.GoToNext
+	return ast.WalkContinue, nil
 }
 
 // RenderHeader renders the markdown's header.
@@ -145,14 +213,14 @@ func (tr *TermRenderer) RenderHeader(w io.Writer, ast *bf.Node) {
 func (tr *TermRenderer) RenderFooter(w io.Writer, ast *bf.Node) {
 }
 
-func isChild(node *bf.Node) bool {
-	if node.Parent == nil {
+func isChild(node ast.Node) bool {
+	if node.Parent() == nil {
 		return false
 	}
 
 	// These types are already rendered by their parent
-	switch node.Parent.Type {
-	case bf.Heading, bf.Link, bf.Image, bf.TableCell, bf.Emph, bf.Strong:
+	switch node.Parent().Kind() {
+	case ast.KindLink, ast.KindImage, ast.KindEmphasis, ast.KindBlockquote, astext.KindTableCell:
 		return true
 	default:
 		return false

heading.go

@@ -1,13 +1,13 @@
 package gold
 
 import (
+	"bytes"
 	"io"
 
 	"github.com/muesli/reflow"
 )
 
 type HeadingElement struct {
-	Text  string
 	Level int
 	First bool
 }
@@ -31,6 +31,25 @@ func (e *HeadingElement) Render(w io.Writer, ctx RenderContext) error {
 		rules = cascadeStyles(false, rules, ctx.style[H6])
 	}
 
+	if !e.First {
+		renderText(w, bs.Current().Style, "\n")
+	}
+
+	be := BlockElement{
+		Block: &bytes.Buffer{},
+		Style: cascadeStyle(bs.Current().Style, rules, true),
+	}
+	bs.Push(be)
+
+	renderText(w, bs.Parent().Style, rules.Prefix)
+	renderText(w, bs.Current().Style, rules.StyledPrefix)
+	return nil
+}
+
+func (e *HeadingElement) Finish(w io.Writer, ctx RenderContext) error {
+	bs := ctx.blockStack
+	rules := bs.Current().Style
+
 	var indent uint
 	var margin uint
 	if rules.Indent != nil {
@@ -43,7 +62,7 @@ func (e *HeadingElement) Render(w io.Writer, ctx RenderContext) error {
 	iw := &IndentWriter{
 		Indent: indent + margin,
 		IndentFunc: func(wr io.Writer) {
-			renderText(w, bs.Current().Style, " ")
+			renderText(w, bs.Parent().Style, " ")
 		},
 		Forward: &AnsiWriter{
 			Forward: w,
@@ -51,22 +70,21 @@ func (e *HeadingElement) Render(w io.Writer, ctx RenderContext) error {
 	}
 
 	flow := reflow.NewReflow(int(bs.Width(ctx) - indent - margin*2))
+	_, err := flow.Write(bs.Current().Block.Bytes())
+	if err != nil {
+		return err
+	}
+	flow.Close()
 
-	var pre string
-	if !e.First {
-		pre = "\n"
-	}
-	el := &BaseElement{
-		Prefix: pre,
-		Token:  e.Text,
-		Style:  rules,
-	}
-	err := el.Render(flow, ctx)
+	_, err = iw.Write(flow.Bytes())
 	if err != nil {
 		return err
 	}
 
-	flow.Close()
-	_, err = iw.Write(flow.Bytes())
-	return err
+	renderText(w, bs.Current().Style, rules.StyledSuffix)
+	renderText(w, bs.Parent().Style, rules.Suffix)
+
+	bs.Current().Block.Reset()
+	bs.Pop()
+	return nil
 }

list.go

@@ -1,46 +0,0 @@
-package gold
-
-import (
-	"bytes"
-	"io"
-
-	"github.com/muesli/reflow"
-)
-
-type ListElement struct {
-	Nested bool
-}
-
-func (e *ListElement) Render(w io.Writer, ctx RenderContext) error {
-	bs := ctx.blockStack
-	rules := ctx.style[List]
-
-	if !e.Nested {
-		_, _ = w.Write([]byte("\n"))
-	}
-
-	be := BlockElement{
-		Block: &bytes.Buffer{},
-		Style: cascadeStyle(bs.Current().Style, rules, true),
-	}
-	bs.Push(be)
-
-	return nil
-}
-
-func (e *ListElement) Finish(w io.Writer, ctx RenderContext) error {
-	bs := ctx.blockStack
-	rules := bs.Current().Style
-
-	renderText(bs.Current().Block, rules, rules.Suffix)
-
-	_, err := NewMarginWriter(ctx, w, rules).Write(
-		reflow.Bytes(bs.Current().Block.Bytes(), int(bs.Width(ctx))))
-	if err != nil {
-		return err
-	}
-
-	bs.Current().Block.Reset()
-	bs.Pop()
-	return nil
-}

paragraph.go

@@ -9,25 +9,19 @@ import (
 )
 
 type ParagraphElement struct {
-	InsideList bool
 }
 
 func (e *ParagraphElement) Render(w io.Writer, ctx RenderContext) error {
 	bs := ctx.blockStack
 	var rules ElementStyle
 
-	if e.InsideList {
-		// list item
-		rules = ctx.style[List]
-	} else {
-		rules = ctx.style[Paragraph]
-		_, _ = w.Write([]byte("\n"))
-		be := BlockElement{
-			Block: &bytes.Buffer{},
-			Style: cascadeStyle(bs.Current().Style, rules, true),
-		}
-		bs.Push(be)
+	rules = ctx.style[Paragraph]
+	_, _ = w.Write([]byte("\n"))
+	be := BlockElement{
+		Block: &bytes.Buffer{},
+		Style: cascadeStyle(bs.Current().Style, rules, true),
 	}
+	bs.Push(be)
 
 	renderText(w, bs.Current().Style, rules.Prefix)
 	return nil
@@ -38,11 +32,6 @@ func (e *ParagraphElement) Finish(w io.Writer, ctx RenderContext) error {
 	rules := bs.Current().Style
 
 	keepNewlines := false
-	if e.InsideList {
-		// remove indent & margin for list items
-		rules = bs.Current().Style
-		keepNewlines = true
-	}
 
 	renderText(bs.Current().Block, rules, rules.Suffix)
 
@@ -61,8 +50,6 @@ func (e *ParagraphElement) Finish(w io.Writer, ctx RenderContext) error {
 	}
 
 	bs.Current().Block.Reset()
-	if !e.InsideList {
-		bs.Pop()
-	}
+	bs.Pop()
 	return nil
 }

style.go

@@ -16,38 +16,54 @@ type StyleType int
 
 const (
 	Document StyleType = iota
+
+	// Block elements
+	Heading
+	Paragraph
 	BlockQuote
 	List
+
+	// Text elements
+	Text
+	Emph
+	Strong
+	HorizontalRule
+
+	// ListItem styles
 	Item
+	CheckedItem
 	Enumeration
-	Paragraph
-	Heading
+
+	// Links
+	Link
+	LinkText
+
+	// Images
+	Image
+	ImageText
+
+	// Code styles
+	CodeBlock
+	Code
+
+	// Table styles
+	Table
+	TableCell
+	TableHead
+	TableBody
+	TableRow
+
+	// HTML styles
+	HTMLBlock
+	HTMLSpan
+
+	// Style definitions for individual heading levels
 	H1
 	H2
 	H3
 	H4
 	H5
 	H6
-	HorizontalRule
-	Emph
-	Strong
-	Del
-	Link
-	LinkText
-	Image
-	ImageText
-	Text
-	HTMLBlock
-	CodeBlock
-	Softbreak
-	Hardbreak
-	Code
-	HTMLSpan
-	Table
-	TableCell
-	TableHead
-	TableBody
-	TableRow
 )
 
 type ElementStyle struct {
@@ -67,6 +83,8 @@ type ElementStyle struct {
 	Theme           string  `json:"theme"`
 	Prefix          string  `json:"prefix"`
 	Suffix          string  `json:"suffix"`
+	StyledPrefix    string  `json:"styled_prefix"`
+	StyledSuffix    string  `json:"styled_suffix"`
 	Format          string  `json:"format"`
 }
 
@@ -235,6 +253,8 @@ func keyToType(key string) (StyleType, error) {
 		return List, nil
 	case "item":
 		return Item, nil
+	case "checked_item":
+		return CheckedItem, nil
 	case "enumeration":
 		return Enumeration, nil
 	case "paragraph":
@@ -259,8 +279,6 @@ func keyToType(key string) (StyleType, error) {
 		return Emph, nil
 	case "strong":
 		return Strong, nil
-	case "del":
-		return Del, nil
 	case "link":
 		return Link, nil
 	case "link_text":
@@ -275,10 +293,6 @@ func keyToType(key string) (StyleType, error) {
 		return HTMLBlock, nil
 	case "code_block":
 		return CodeBlock, nil
-	case "softbreak":
-		return Softbreak, nil
-	case "hardbreak":
-		return Hardbreak, nil
 	case "code":
 		return Code, nil
 	case "html_span":