import java.io.*;
import java.util.regex.*;
/*
* Source: http://java.sun.com/docs/books/tutorial/extra/regex/example-1dot4/RegexTestHarness.java
*/
public final class RegexTestHarness {
private static String REGEX;
private static String INPUT;
private static BufferedReader br;
private static Pattern pattern;
private static Matcher matcher;
private static boolean found;
public static void main(String[] argv) {
initResources();
processTest();
closeResources();
}
private static void initResources() {
try {
br = new BufferedReader(new FileReader("regex.txt"));
}
catch (FileNotFoundException fnfe) {
System.out.println("Cannot locate input file! "+fnfe.getMessage());
System.exit(0);
}
try {
REGEX = br.readLine();
INPUT = br.readLine();
} catch (IOException ioe) {}
pattern = Pattern.compile(REGEX);
matcher = pattern.matcher(INPUT);
System.out.println("Current REGEX is: "+REGEX);
System.out.println("Current INPUT is: "+INPUT);
}
private static void processTest() {
while(matcher.find()) {
System.out.println("I found the text \"" + matcher.group() +
"\" starting at index " + matcher.start() +
" and ending at index " + matcher.end() + ".");
found = true;
}
if(!found){
System.out.println("No match found.");
}
}
private static void closeResources() {
try{
br.close();
}catch(IOException ioe){}
}
}