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Add attention blocks within quote blocks for Note and Warning (#21711)

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For each quote block, the first `**Note**` or `**Warning**` gets an icon
prepended to it and its text is colored accordingly. GitHub does this
(community/community#16925). [Initially requested on
Discord.](1038816475)

### Before

![image](https://user-images.githubusercontent.com/20454870/200408558-bd318302-6ff9-4d56-996f-9190e89013ec.png)

### After

![image](https://user-images.githubusercontent.com/20454870/200658863-1bac6461-dae7-4bf2-abd2-672d209574e4.png)

Signed-off-by: Yarden Shoham <hrsi88@gmail.com>
Co-authored-by: delvh <dev.lh@web.de>
Co-authored-by: silverwind <me@silverwind.io>
This commit is contained in:
Yarden Shoham 2022-11-09 02:11:26 +02:00 • committed by GitHub
parent 2ebab42934
commit cb83288530
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7
modules/markup/sanitizer.go
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@ -58,6 +58,13 @@ func createDefaultPolicy() *bluemonday.Policy {
// For color preview
policy.AllowAttrs("class").Matching(regexp.MustCompile(`^color-preview$`)).OnElements("span")
// For attention
policy.AllowAttrs("class").Matching(regexp.MustCompile(`^attention-\w+$`)).OnElements("strong")
policy.AllowAttrs("class").Matching(regexp.MustCompile(`^attention-icon attention-\w+$`)).OnElements("span", "strong")
policy.AllowAttrs("class").Matching(regexp.MustCompile(`^svg octicon-\w+$`)).OnElements("svg")
policy.AllowAttrs("viewBox", "width", "height", "aria-hidden").OnElements("svg")
policy.AllowAttrs("fill-rule", "d").OnElements("path")
// For Chroma markdown plugin
policy.AllowAttrs("class").Matching(regexp.MustCompile(`^(chroma )?language-[\w-]+( display)?( is-loading)?$`)).OnElements("code")