	peekToken: function() {
		if (this.tokens.length === 0) {
			throw $parseMinErr(
				"ueoe",
				"Unexpected end of expression: {0}",
				this.text
			);
		}
		return this.tokens[0];
	},
The software constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.