# Is `self` a valid JSON separator ?
	private fun is_json_separator: Bool do
		if self == ':' then return true
		if self == ',' then return true
		if self == '{' then return true
		if self == '}' then return true
		if self == '[' then return true
		if self == ']' then return true
		if self == '"' then return true
		if self.is_whitespace then return true
		return false
	end