package go/token
IsOperator returns true for tokens corresponding to operators and delimiters; it returns false otherwise.
Golang go/token.Token.IsOperator function usage example
// getClass returns the CSS class name associated with tok.
func (h *Highlighter) getClass(tok token.Token) string {
switch {
case tok.IsKeyword():
return h.KeywordClass
case tok.IsLiteral(): // <---- here
if tok == token.IDENT {
return h.IdentClass
} else {
return h.LiteralClass
}
case tok.IsOperator():
return h.OperatorClass
case tok == token.COMMENT:
return h.CommentClass
case tok == token.ILLEGAL:
break
default:
panic(fmt.Sprintf("unknown token type: %v", tok))
}
return ""
}
References :
http://dhconnelly.com/litebrite/litebrite.html
http://golang.org/pkg/go/token/#Token.IsOperator
