public class Demo2_Regex {

	/**
	 * [abc] a、b 或 c（簡單類） 
		[^abc] 任何字元，除了 a、b 或 c（否定） 
		[a-zA-Z] a 到 z 或 A 到 Z，兩頭的字母包括在內（範圍） 
		[a-d[m-p]] a 到 d 或 m 到 p：[a-dm-p]（並集） 
		[a-z&&[def]] d、e 或 f（交集） 
		[a-z&&[^bc]] a 到 z，除了 b 和 c：[ad-z]（減去） 
		[a-z&&[^m-p]] a 到 z，而非 m 到 p：[a-lq-z]（減去） 

	 */
	public static void main(String[] args) {
		//demo1();
		//demo2();
		//demo3();
		//demo4();
		//demo5();
		//demo6();
		String regex = "[a-z&&[^m-p]]";
		System.out.println("m".matches(regex));
		System.out.println("a".matches(regex));
		System.out.println("z".matches(regex));
		System.out.println("n".matches(regex));
	}

	private static void demo6() {
		String regex = "[a-z&&[^bc]]";
		System.out.println("a".matches(regex));
		System.out.println("b".matches(regex));
		System.out.println("1".matches(regex));
	}

	private static void demo5() {
		String regex = "[a-z&&[def]]";						//取交集
		System.out.println("a".matches(regex));
		System.out.println("d".matches(regex));
	}

	private static void demo4() {
		String regex = "[a-d[m-p]]";
		System.out.println("a".matches(regex));
		System.out.println("m".matches(regex));
		System.out.println("n".matches(regex));
	}

	private static void demo3() {
		String regex = "[a-zA-Z]";
		System.out.println("a".matches(regex));
		System.out.println("A".matches(regex));
		System.out.println("z".matches(regex));
		System.out.println("Z".matches(regex));
		System.out.println("1".matches(regex));
		System.out.println("%".matches(regex));
	}

	private static void demo2() {
		String regex = "[^abc]";
		System.out.println("a".matches(regex));
		System.out.println("b".matches(regex));
		System.out.println("c".matches(regex));
		System.out.println("d".matches(regex));
		System.out.println("1".matches(regex));
		System.out.println("%".matches(regex));
		System.out.println("10".matches(regex));		//10代表1字元和0字元,不是單個字元
	}

	private static void demo1() {
		String regex = "[abc]";					//[]代表單個字元
		System.out.println("a".matches(regex));
		System.out.println("b".matches(regex));
		System.out.println("c".matches(regex));
		System.out.println("d".matches(regex));
		System.out.println("1".matches(regex));
		System.out.println("%".matches(regex));
	}

}