new markdown renderer

since TOC has a title now and it can compact toc headers, we can use
header 2 for everything

use the built in goldmark extension for syntax highlighting

1 files changed, 0 insertions, 79 deletions

diff --git a/html/highlight.go b/html/highlight.go
index d198ad0..621abdb 100644
--- a/html/highlight.go
+++ b/html/highlight.go
@@ -1,80 +1 @@
 package html
-
-import (
-	"io"
-
-	"github.com/gomarkdown/markdown/ast"
-	mdhtml "github.com/gomarkdown/markdown/html"
-
-	"github.com/alecthomas/chroma"
-	"github.com/alecthomas/chroma/formatters/html"
-	"github.com/alecthomas/chroma/lexers"
-	"github.com/alecthomas/chroma/styles"
-)
-
-type Highlighter struct {
-	htmlFormatter  *html.Formatter
-	highlightStyle *chroma.Style
-}
-
-func (h Highlighter) htmlHighlight(w io.Writer, source, lang, defaultLang string) error {
-	if lang == "" {
-		lang = defaultLang
-	}
-
-	l := lexers.Get(lang)
-	if l == nil {
-		l = lexers.Analyse(source)
-	}
-	if l == nil {
-		l = lexers.Fallback
-	}
-	l = chroma.Coalesce(l)
-
-	it, err := l.Tokenise(nil, source)
-	if err != nil {
-		return err
-	}
-	return h.htmlFormatter.Format(w, h.highlightStyle, it)
-}
-
-func (h Highlighter) renderCode(w io.Writer, codeBlock *ast.CodeBlock, entering bool) {
-	defaultLang := ""
-	lang := string(codeBlock.Info)
-	h.htmlHighlight(w, string(codeBlock.Literal), lang, defaultLang)
-}
-
-func (h Highlighter) myRenderHook(w io.Writer, node ast.Node, entering bool) (ast.WalkStatus, bool) {
-	if code, ok := node.(*ast.CodeBlock); ok {
-		h.renderCode(w, code, entering)
-		return ast.GoToNext, true
-	}
-	return ast.GoToNext, false
-}
-
-type opts struct {
-}
-
-func newRenderer(hasToc bool) *mdhtml.Renderer {
-
-	htmlFormatter := html.New(html.WithClasses(true), html.TabWidth(2))
-
-	styleName := "monokailight"
-	highlightStyle := styles.Get(styleName)
-
-	h := Highlighter{
-		htmlFormatter:  htmlFormatter,
-		highlightStyle: highlightStyle,
-	}
-
-	flags := mdhtml.CommonFlags | mdhtml.FootnoteReturnLinks
-	if hasToc {
-		flags = flags | mdhtml.TOC
-	}
-
-	opts := mdhtml.RendererOptions{
-		Flags:          flags,
-		RenderNodeHook: h.myRenderHook,
-	}
-	return mdhtml.NewRenderer(opts)
-}