Add code highlighting in issue titles (#21432)

This changes the rendering logic of issue titles. If a substring in an
issue title is enclosed with a pair of backticks, it'll be rendered with
a monospace font (HTML `code` tag).

* Closes #20887

Signed-off-by: Yarden Shoham <hrsi88@gmail.com>
Co-authored-by: Gusted <williamzijl7@hotmail.com>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
Co-authored-by: 6543 <6543@obermui.de>
This commit is contained in:
Yarden Shoham 2022-10-15 21:24:41 +03:00 committed by GitHub
parent 671c609c46
commit b9cd6fb703
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6 changed files with 24 additions and 9 deletions

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@ -161,6 +161,7 @@ func NewFuncMap() []template.FuncMap {
"RenderCommitMessageLink": RenderCommitMessageLink,
"RenderCommitMessageLinkSubject": RenderCommitMessageLinkSubject,
"RenderCommitBody": RenderCommitBody,
"RenderCodeBlock": RenderCodeBlock,
"RenderIssueTitle": RenderIssueTitle,
"RenderEmoji": RenderEmoji,
"RenderEmojiPlain": emoji.ReplaceAliases,
@ -795,6 +796,16 @@ func RenderCommitBody(ctx context.Context, msg, urlPrefix string, metas map[stri
return template.HTML(renderedMessage)
}
// Match text that is between back ticks.
var codeMatcher = regexp.MustCompile("`([^`]+)`")
// RenderCodeBlock renders "`…`" as highlighted "<code>" block.
// Intended for issue and PR titles, these containers should have styles for "<code>" elements
func RenderCodeBlock(htmlEscapedTextToRender template.HTML) template.HTML {
htmlWithCodeTags := codeMatcher.ReplaceAllString(string(htmlEscapedTextToRender), "<code>$1</code>") // replace with HTML <code> tags
return template.HTML(htmlWithCodeTags)
}
// RenderIssueTitle renders issue/pull title with defined post processors
func RenderIssueTitle(ctx context.Context, text, urlPrefix string, metas map[string]string) template.HTML {
renderedText, err := markup.RenderIssueTitle(&markup.RenderContext{