Function isSymbol

utils/contentfilter/contentfilter.go:124–126

(char rune)

	return result.String()
}
func isSymbol(char rune) bool {
	return !unicode.IsLetter(char) && !unicode.IsNumber(char) && (char < 0x2E80 || char > 0x9FFF)
}

type TrieNode struct {
	isKeywordEnd bool