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Refactor AddImageTitle rewriter.

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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.
This commit is contained in:
dzaikos 2018-06-26 17:39:56 -04:00
parent c9131b0e89
commit 45d7105ed1
2 changed files with 22 additions and 4 deletions
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16
reader/rewrite/rewrite_functions.go
View file

@ -22,9 +22,19 @@ func addImageTitle(entryURL, entryContent string) string {
return entryContent
}
imgTag := doc.Find("img").First()
if titleAttr, found := imgTag.Attr("title"); found {
return entryContent + `<blockquote cite="` + entryURL + `">` + titleAttr + "</blockquote>"
matches := doc.Find("img[src][title]")
if matches.Length() > 0 {
matches.Each(func(i int, img *goquery.Selection) {
altAttr := img.AttrOr("alt", "")
srcAttr, _ := img.Attr("src")
titleAttr, _ := img.Attr("title")
img.ReplaceWithHtml(`<figure><img src="` + srcAttr + `" alt="` + altAttr + `"/><figcaption><p>` + titleAttr + `</p></figcaption></figure>`)
})
output, _ := doc.Find("body").First().Html()
return output
}
return entryContent

10
reader/rewrite/rewriter_test.go
View file

@ -35,7 +35,15 @@ func TestRewriteWithInexistingCustomRule(t *testing.T) {
func TestRewriteWithXkcdLink(t *testing.T) {
description := `<img src="https://imgs.xkcd.com/comics/thermostat.png" title="Your problem is so terrible, I worry that, if I help you, I risk drawing the attention of whatever god of technology inflicted it on you." alt="Your problem is so terrible, I worry that, if I help you, I risk drawing the attention of whatever god of technology inflicted it on you." />`
output := Rewriter("https://xkcd.com/1912/", description, ``)
expected := description + `<blockquote cite="https://xkcd.com/1912/">Your problem is so terrible, I worry that, if I help you, I risk drawing the attention of whatever god of technology inflicted it on you.</blockquote>`
expected := `<figure><img src="https://imgs.xkcd.com/comics/thermostat.png" alt="Your problem is so terrible, I worry that, if I help you, I risk drawing the attention of whatever god of technology inflicted it on you."/><figcaption><p>Your problem is so terrible, I worry that, if I help you, I risk drawing the attention of whatever god of technology inflicted it on you.</p></figcaption></figure>`
if expected != output {
t.Errorf(`Not expected output: got "%s" instead of "%s"`, output, expected)
}
}
func TestRewriteWithXkcdLinkAndImageNoTitle(t *testing.T) {
description := `<img src="https://imgs.xkcd.com/comics/thermostat.png" alt="Your problem is so terrible, I worry that, if I help you, I risk drawing the attention of whatever god of technology inflicted it on you." />`
output := Rewriter("https://xkcd.com/1912/", description, ``)
expected := description
if expected != output {
t.Errorf(`Not expected output: got "%s" instead of "%s"`, output, expected)
}