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render.go
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render.go
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package main
import (
"bytes"
"net/http"
"path"
"time"
"github.com/gomarkdown/markdown"
"github.com/gomarkdown/markdown/ast"
"github.com/gomarkdown/markdown/html"
"github.com/gomarkdown/markdown/parser"
"github.com/mmarkdown/mmark/lang"
"github.com/mmarkdown/mmark/mparser"
"github.com/mmarkdown/mmark/render/mhtml"
)
func render(w http.ResponseWriter, r *http.Request, buf []byte, pathname string) {
ext := path.Ext(pathname)
switch ext {
case ".md", ".markdown", ".txt", ".text":
renderer, doc := newRendererMmark(buf, pathname)
x := markdown.Render(doc, renderer)
http.ServeContent(w, r, pathname+".html", time.Now().UTC(), bytes.NewReader(x))
default:
http.ServeContent(w, r, pathname, time.Now().UTC(), bytes.NewReader(buf))
}
}
func newRendererMmark(buf []byte, pathname string) (markdown.Renderer, ast.Node) {
init := mparser.NewInitial(pathname)
p := parser.NewWithExtensions(mparser.Extensions)
parserFlags := parser.FlagsNone
p.Opts = parser.Options{
ReadIncludeFn: init.ReadInclude,
Flags: parserFlags,
}
doc := markdown.Parse(buf, p)
mparser.AddBibliography(doc)
mparser.AddIndex(doc)
mhtmlOpts := mhtml.RendererOptions{
Language: lang.New("en"), // TODO(miek): should come from xdoc.yaml.
}
opts := html.RendererOptions{
Comments: [][]byte{[]byte("//"), []byte("#")},
RenderNodeHook: mhtmlOpts.RenderHook,
Flags: html.CommonFlags | html.FootnoteNoHRTag | html.FootnoteReturnLinks,
Generator: ` <meta name="GENERATOR" content="github.com/mmarkdown/mmark Mmark Markdown Processor - mmark.miek.nl`,
}
opts.Flags |= html.CompletePage
return html.NewRenderer(opts), doc
}