Function isJSONIdx

dialect/sql/sqljson/sqljson.go:694–699

isJSONIdx reports whether the string represents a JSON index.

(s string)

// isJSONIdx reports whether the string represents a JSON index.
func isJSONIdx(s string) (string, bool) {
	if len(s) > 2 && s[0] == '[' && s[len(s)-1] == ']' && (isNumber(s[1:len(s)-1]) || s[1] == '#' && isNumber(s[2:len(s)-1])) {
		return s[1 : len(s)-1], true
	}
	return "", false
}

// isNumber reports whether the string is a number (category N).
func isNumber(s string) bool {