The all mighty regex

We often use regular expressions when programming.
In many occasions they make our live easier and help us avoiding lots of lines of code. I was just navigating around, and by a chance I found a blog that shows probably the one of coolest regex.
Have a look at this regular expression:

                                                                    

Personally I never used this one before. The thing that I find cool about it is, its simplicity.
For those who are not familiar with regex terminology, this one matches a character that is within(inclusive )the characters SPACE and tilde in the ASCII table.

Hehe.. cool, isn't it? I am looking forward to use it somewhere.

I can't resist, let's just give it a quick try :)

1:  import java.util.regex.Matcher;  
2:  import java.util.regex.Pattern;  
3:  public class AllMightyRegex {  
4:       public static void main(String[] args) {  
5:            String someASCIICharacters = "!#$%&\'()*+,-.0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~";  
6:            Pattern pattern = Pattern.compile("[ -~]");  
7:            Matcher matcher;   
8:            for (int variableIndex = 0; variableIndex < someASCIICharacters.length(); variableIndex++) {  
9:                 matcher = pattern.matcher(getCharAt(someASCIICharacters, variableIndex));  
10:                 if(matcher.matches()) {  
11:                      System.out.println("The character: " + getCharAt(someASCIICharacters, variableIndex) + " matches the pattern");  
12:                 }  
13:            }  
14:       }  
15:       private static String getCharAt(String someASCIICharacters,  
16:                 int variableIndex) {  
17:            return someASCIICharacters.charAt(variableIndex) + "";  
18:       }  
19:  }