package html/template
CSS encapsulates known safe content that matches any of:
The CSS3 stylesheet production, such as p { color: purple }.
The CSS3 rule production, such as a[href=~"https:"].foo#bar.
CSS3 declaration productions, such as color: red; margin: 2px.
The CSS3 value production, such as rgba(0, 0, 255, 127).
Golang html/template.CSS type usage examples
Example 1:
func colorNick(s string) template.CSS { // <-- here
hue := uint(0)
for _, c := range s {
hue *= 17
hue += uint(c)
}
style := fmt.Sprintf("color: hsl(%d, 40%%, 50%%)", hue%360)
return template.CSS(style)
}
Example 2:
inputs := []interface{}{
"\x00\x01\x02\x03\x04\x05\x06\x07\x08\t\n\x0b\x0c\r\x0e\x0f" +
"\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19\x1a\x1b\x1c\x1d\x1e\x1f" +
` !"#$%&'()*+,-./` +
`0123456789:;<=>?` +
`@ABCDEFGHIJKLMNO` +
`PQRSTUVWXYZ[\]^_` +
"`abcdefghijklmno" +
"pqrstuvwxyz{|}~\x7f" +
"\u00A0\u0100\u2028\u2029\ufeff\ufdec\ufffd\uffff\U0001D11E" +
"&%22\\",
CSS(`a[href =~ "//example.com"]#foo`), // <---- here
HTML(`Hello, <b>World</b> &tc!`),
HTMLAttr(` dir="ltr"`),
JS(`c && alert("Hello, World!");`),
JSStr(`Hello, World & O'Reilly\x21`),
URL(`greeting=H%69&addressee=(World)`),
}
References :
https://github.com/remyoudompheng/go-misc/blob/master/webtoys/irc/irc.go
http://golang.org/pkg/html/template/#CSS
