regex

[Ankur kothari]

are there any gud articles on regex and greedy quantifiers?

[Henry Wong]

ankur kothari wrote:are there any [good] articles on regex and greedy quantifiers?

The sun tutorial is a good place to start...

http://java.sun.com/docs/books/tutorial/essential/regex/

Personally, I learn regex from Perl, and found their tutorial to be more complete -- although not related to Java...

http://perldoc.perl.org/perlretut.html

And of course, there is a website devoted to all things regex...

http://www.regular-expressions.info/tutorial.html

Henry

[little baby]

[Spam remvoved.]

[Ankit Garg]

"little baby" please check your private messages for some administrative matter...

[Minhaj Mehmood]

import java.util.regex.*;
class Regex{
	public static void main(String... args){
		String pattern = "\\d\\w";
		String matcher = "ab4 56_7ab";
		Pattern p = Pattern.compile(pattern);
		Matcher m = p.matcher(matcher);

		System.out.println("Pattern is: " + m.pattern());

		while(m.find()){
			System.out.println(m.start() + " " + m.group());
		}
	}
}

out put
Pattern is: \d\w
4 56
7 7a

anyone can explain the output please?
I read the above expression as "match any digit followed by 1 white space".

[Minhaj Mehmood]

Minhaj kaimkhani wrote:

import java.util.regex.*;
class Regex{
	public static void main(String... args){
		String pattern = "\\d\\w";
		String matcher = "ab4 56_7ab";
		Pattern p = Pattern.compile(pattern);
		Matcher m = p.matcher(matcher);

		System.out.println("Pattern is: " + m.pattern());

		while(m.find()){
			System.out.println(m.start() + " " + m.group());
		}
	}
}

out put
Pattern is: \d\w
4 56
7 7a

anyone can explain the output please?
I read the above expression as "match any digit followed by 1 white space".

AH I got the answer \w = any character not white space!!