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Don't count HTML markup in auto summaries

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This commit also fixes a bug where a `</picture>` end tag was wrongly used to detect a end paragraph. This should be very rare, though.

Closes #12837
This commit is contained in:
Bjørn Erik Pedersen
2024-09-10 08:54:03 +02:00
parent 84ee00bbc2
commit 3d6baedaec
3 changed files with 77 additions and 2 deletions
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20
resources/page/page_markup.go
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@@ -161,6 +161,16 @@ func (s *HtmlSummary) resolveParagraphTagAndSetWrapper(mt media.Type) tagReStart
return ptag
}
// Avoid counting words that are most likely HTML tokens.
var (
isProbablyHTMLTag = regexp.MustCompile(`^<\/?[A-Za-z]+>?$`)
isProablyHTMLAttribute = regexp.MustCompile(`^[A-Za-z]+=["']`)
)
func isProbablyHTMLToken(s string) bool {
return s == ">" || isProbablyHTMLTag.MatchString(s) || isProablyHTMLAttribute.MatchString(s)
}
// ExtractSummaryFromHTML extracts a summary from the given HTML content.
func ExtractSummaryFromHTML(mt media.Type, input string, numWords int, isCJK bool) (result HtmlSummary) {
result.source = input
@@ -173,6 +183,14 @@ func ExtractSummaryFromHTML(mt media.Type, input string, numWords int, isCJK boo
var count int
countWord := func(word string) int {
word = strings.TrimSpace(word)
if len(word) == 0 {
return 0
}
if isProbablyHTMLToken(word) {
return 0
}
if isCJK {
word = tpl.StripHTML(word)
runeCount := utf8.RuneCountInString(word)
@@ -193,7 +211,7 @@ func ExtractSummaryFromHTML(mt media.Type, input string, numWords int, isCJK boo
for j := result.WrapperStart.High; j < high; {
s := input[j:]
closingIndex := strings.Index(s, "</"+ptag.tagName)
closingIndex := strings.Index(s, "</"+ptag.tagName+">")
if closingIndex == -1 {
break