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//: strings/StartEnd.java

package strings; /* Added by Eclipse.py */

import java.util.regex.*;

import static net.mindview.util.Print.*;

public class StartEnd {

public static String input =

"As long as there is injustice, whenever a\n" +

"Targathian baby cries out, wherever a distress\n" +

"signal sounds among the stars ... We'll be there.\n" +

"This fine ship, and this fine crew ...\n" +

"Never give up! Never surrender!";

private static class Display {

private boolean regexPrinted = false;

private String regex;

Display(String regex) { this.regex = regex; }

void display(String message) {

if(!regexPrinted) {

print(regex);

regexPrinted = true;

}

print(message);

}

}

static void examine(String s, String regex) {

Display d = new Display(regex);

Pattern p = Pattern.compile(regex);

Matcher m = p.matcher(s);

while(m.find())

d.display("find() '" + m.group() +

"' start = "+ m.start() + " end = " + m.end());

if(m.lookingAt()) // No reset() necessary

d.display("lookingAt() start = "

+ m.start() + " end = " + m.end());

if(m.matches()) // No reset() necessary

d.display("matches() start = "

+ m.start() + " end = " + m.end());

}

public static void main(String[] args) {

for(String in : input.split("\n")) {

print("input : " + in);

for(String regex : new String[]{"\\w*ere\\w*",

"\\w*ever", "T\\w+", "Never.*?!"})

examine(in, regex);

}

}

} /* Output:

input : As long as there is injustice, whenever a

\w*ere\w*

find() 'there' start = 11 end = 16

\w*ever

find() 'whenever' start = 31 end = 39

input : Targathian baby cries out, wherever a distress

\w*ere\w*

find() 'wherever' start = 27 end = 35

\w*ever

find() 'wherever' start = 27 end = 35

T\w+

find() 'Targathian' start = 0 end = 10

lookingAt() start = 0 end = 10

input : signal sounds among the stars ... We'll be there.

\w*ere\w*

find() 'there' start = 43 end = 48

input : This fine ship, and this fine crew ...

T\w+

find() 'This' start = 0 end = 4

lookingAt() start = 0 end = 4

input : Never give up! Never surrender!

\w*ever

find() 'Never' start = 0 end = 5

find() 'Never' start = 15 end = 20

lookingAt() start = 0 end = 5

Never.*?!

find() 'Never give up!' start = 0 end = 14

find() 'Never surrender!' start = 15 end = 31

lookingAt() start = 0 end = 14

matches() start = 0 end = 31

*///:~