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* Only processes images with `src` **and** `title` attributes (others are ignored). * Processes **all** images in the document (not just the first one). * Wraps the image and its title attribute in a `figure` tag with the title attribute's contents in a `figcaption` tag. Updated xkcd rewriter unit test. Added another xkcd rewriter unit test to check rendering of images without title tags.
59 lines
1.5 KiB
Go
59 lines
1.5 KiB
Go
// Copyright 2017 Frédéric Guillot. All rights reserved.
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// Use of this source code is governed by the Apache 2.0
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// license that can be found in the LICENSE file.
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package rewrite
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import (
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"fmt"
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"regexp"
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"strings"
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"github.com/PuerkitoBio/goquery"
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)
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var (
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youtubeRegex = regexp.MustCompile(`youtube\.com/watch\?v=(.*)`)
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)
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func addImageTitle(entryURL, entryContent string) string {
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doc, err := goquery.NewDocumentFromReader(strings.NewReader(entryContent))
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if err != nil {
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return entryContent
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}
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matches := doc.Find("img[src][title]")
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if matches.Length() > 0 {
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matches.Each(func(i int, img *goquery.Selection) {
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altAttr := img.AttrOr("alt", "")
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srcAttr, _ := img.Attr("src")
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titleAttr, _ := img.Attr("title")
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img.ReplaceWithHtml(`<figure><img src="` + srcAttr + `" alt="` + altAttr + `"/><figcaption><p>` + titleAttr + `</p></figcaption></figure>`)
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})
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output, _ := doc.Find("body").First().Html()
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return output
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}
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return entryContent
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}
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func addYoutubeVideo(entryURL, entryContent string) string {
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matches := youtubeRegex.FindStringSubmatch(entryURL)
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if len(matches) == 2 {
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video := `<iframe width="650" height="350" frameborder="0" src="https://www.youtube-nocookie.com/embed/` + matches[1] + `" allowfullscreen></iframe>`
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return video + "<p>" + entryContent + "</p>"
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}
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return entryContent
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}
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func addPDFLink(entryURL, entryContent string) string {
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if strings.HasSuffix(entryURL, ".pdf") {
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return fmt.Sprintf(`<a href="%s">PDF</a><br>%s`, entryURL, entryContent)
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}
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return entryContent
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}
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