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package main
// example for https://blog.kowalczyk.info/article/cxn3/advanced-markdown-processing-in-go.html
import (
"fmt"
"io"
"github.com/gomarkdown/markdown"
"github.com/gomarkdown/markdown/ast"
"github.com/gomarkdown/markdown/html"
)
// an actual rendering of Paragraph is more complicated
func renderParagraph(w io.Writer, p *ast.Paragraph, entering bool) {
if entering {
io.WriteString(w, "<div>")
} else {
io.WriteString(w, "</div>")
}
}
func myRenderHook(w io.Writer, node ast.Node, entering bool) (ast.WalkStatus, bool) {
if para, ok := node.(*ast.Paragraph); ok {
renderParagraph(w, para, entering)
return ast.GoToNext, true
}
return ast.GoToNext, false
}
func newCustomizedRender() *html.Renderer {
opts := html.RendererOptions{
Flags: html.CommonFlags,
RenderNodeHook: myRenderHook,
}
return html.NewRenderer(opts)
}
var mds = `foo`
func renderHookExmple() {
md := []byte(mds)
renderer := newCustomizedRender()
html := markdown.ToHTML(md, nil, renderer)
fmt.Printf("--- Markdown:\n%s\n\n--- HTML:\n%s\n", md, html)
}
func main() {
renderHookExmple()
}
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