9d99f6ab19
* Refactor renders * Some performance optimization * Fix comment * Transform reader * Fix csv test * Fix test * Fix tests * Improve optimaziation * Fix test * Fix test * Detect file encoding with reader * Improve optimaziation * reduce memory usage * improve code * fix build * Fix test * Fix for go1.15 * Fix render * Fix comment * Fix lint * Fix test * Don't use NormalEOF when unnecessary * revert change on util.go * Apply suggestions from code review Co-authored-by: zeripath <art27@cantab.net> * rename function * Take NormalEOF back Co-authored-by: zeripath <art27@cantab.net>
124 lines
3 KiB
Go
124 lines
3 KiB
Go
// Copyright 2017 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package markup
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import (
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"bytes"
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"fmt"
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"html"
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"io"
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"strings"
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"code.gitea.io/gitea/modules/markup"
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"code.gitea.io/gitea/modules/util"
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"github.com/niklasfasching/go-org/org"
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)
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func init() {
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markup.RegisterRenderer(Renderer{})
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}
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// Renderer implements markup.Renderer for orgmode
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type Renderer struct {
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}
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// Name implements markup.Renderer
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func (Renderer) Name() string {
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return "orgmode"
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}
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// NeedPostProcess implements markup.Renderer
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func (Renderer) NeedPostProcess() bool { return true }
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// Extensions implements markup.Renderer
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func (Renderer) Extensions() []string {
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return []string{".org"}
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}
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// Render renders orgmode rawbytes to HTML
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func Render(ctx *markup.RenderContext, input io.Reader, output io.Writer) error {
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htmlWriter := org.NewHTMLWriter()
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w := &Writer{
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HTMLWriter: htmlWriter,
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URLPrefix: ctx.URLPrefix,
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IsWiki: ctx.IsWiki,
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}
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htmlWriter.ExtendingWriter = w
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res, err := org.New().Silent().Parse(input, "").Write(w)
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if err != nil {
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return fmt.Errorf("orgmode.Render failed: %v", err)
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}
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_, err = io.Copy(output, strings.NewReader(res))
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return err
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}
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// RenderString renders orgmode string to HTML string
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func RenderString(ctx *markup.RenderContext, content string) (string, error) {
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var buf strings.Builder
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if err := Render(ctx, strings.NewReader(content), &buf); err != nil {
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return "", err
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}
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return buf.String(), nil
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}
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// Render renders orgmode string to HTML string
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func (Renderer) Render(ctx *markup.RenderContext, input io.Reader, output io.Writer) error {
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return Render(ctx, input, output)
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}
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// Writer implements org.Writer
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type Writer struct {
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*org.HTMLWriter
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URLPrefix string
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IsWiki bool
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}
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var byteMailto = []byte("mailto:")
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// WriteRegularLink renders images, links or videos
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func (r *Writer) WriteRegularLink(l org.RegularLink) {
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link := []byte(html.EscapeString(l.URL))
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if l.Protocol == "file" {
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link = link[len("file:"):]
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}
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if len(link) > 0 && !markup.IsLink(link) &&
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link[0] != '#' && !bytes.HasPrefix(link, byteMailto) {
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lnk := string(link)
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if r.IsWiki {
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lnk = util.URLJoin("wiki", lnk)
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}
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link = []byte(util.URLJoin(r.URLPrefix, lnk))
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}
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description := string(link)
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if l.Description != nil {
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description = r.WriteNodesAsString(l.Description...)
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}
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switch l.Kind() {
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case "image":
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imageSrc := getMediaURL(link)
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fmt.Fprintf(r, `<img src="%s" alt="%s" title="%s" />`, imageSrc, description, description)
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case "video":
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videoSrc := getMediaURL(link)
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fmt.Fprintf(r, `<video src="%s" title="%s">%s</video>`, videoSrc, description, description)
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default:
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fmt.Fprintf(r, `<a href="%s" title="%s">%s</a>`, link, description, description)
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}
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}
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func getMediaURL(l []byte) string {
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srcURL := string(l)
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// Check if link is valid
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if len(srcURL) > 0 && !markup.IsLink(l) {
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srcURL = strings.Replace(srcURL, "/src/", "/media/", 1)
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}
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return srcURL
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}
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