//: c12:StartEnd.java // From 'Thinking in Java, 3rd ed.' (c) Bruce Eckel 2002 // www.BruceEckel.com. See copyright notice in CopyRight.txt. import java.util.regex.*; import com.bruceeckel.simpletest.*; public class StartEnd { private static Test monitor = new Test(); public static void main(String[] args) { String[] input = new String[] { "Java has regular expressions in 1.4", "regular expressions now expressing in Java", "Java represses oracular expressions" }; Pattern p1 = Pattern.compile("re\\w*"), p2 = Pattern.compile("Java.*"); for(int i = 0; i < input.length; i++) { System.out.println("input " + i + ": " + input[i]); Matcher m1 = p1.matcher(input[i]), m2 = p2.matcher(input[i]); while(m1.find()) System.out.println("m1.find() '" + m1.group() + "' start = "+ m1.start() + " end = " + m1.end()); while(m2.find()) System.out.println("m2.find() '" + m2.group() + "' start = "+ m2.start() + " end = " + m2.end()); if(m1.lookingAt()) // No reset() necessary System.out.println("m1.lookingAt() start = " + m1.start() + " end = " + m1.end()); if(m2.lookingAt()) System.out.println("m2.lookingAt() start = " + m2.start() + " end = " + m2.end()); if(m1.matches()) // No reset() necessary System.out.println("m1.matches() start = " + m1.start() + " end = " + m1.end()); if(m2.matches()) System.out.println("m2.matches() start = " + m2.start() + " end = " + m2.end()); } monitor.expect(new String[] { "input 0: Java has regular expressions in 1.4", "m1.find() 'regular' start = 9 end = 16", "m1.find() 'ressions' start = 20 end = 28", "m2.find() 'Java has regular expressions in 1.4'" + " start = 0 end = 35", "m2.lookingAt() start = 0 end = 35", "m2.matches() start = 0 end = 35", "input 1: regular expressions now " + "expressing in Java", "m1.find() 'regular' start = 0 end = 7", "m1.find() 'ressions' start = 11 end = 19", "m1.find() 'ressing' start = 27 end = 34", "m2.find() 'Java' start = 38 end = 42", "m1.lookingAt() start = 0 end = 7", "input 2: Java represses oracular expressions", "m1.find() 'represses' start = 5 end = 14", "m1.find() 'ressions' start = 27 end = 35", "m2.find() 'Java represses oracular expressions' " + "start = 0 end = 35", "m2.lookingAt() start = 0 end = 35", "m2.matches() start = 0 end = 35" }); } } ///:~