CharMatcher example

CharMatcher.java

package testting.testinggggg;

import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import com.google.common.base.CharMatcher;
import com.google.common.base.Splitter;
import com.google.common.collect.Collections2;
import com.google.common.collect.Iterables;
import com.google.common.collect.Lists;

/**
 * Hello world!
 *
 */
public class App {
    public static void main( String[] args ){
        
    	System.out.println("testing world!!");	
    	 String test1 = "{key:core.localizations.search}  {key:configuration}";
    	 String test2 = "{key:core.localizations.search}{key:configuration}";
    	 
    	 String test3 = "blablaneggpajga eagagaega {key:core.localizations.search} afagadg afafasfa{key:configuration}afafga fasaf";
    	 
    	 extractKeys(test1);
    	 extractKeys(test2);
    	 extractKeys(test3);
    	
    	 System.out.println("finish :)");
    }
    
    
    public static Iterable<String> extractKeys(String target) {
    	
    	String regexp = "\\{\\s*(((?!\\{|\\}).)+)\\s*\\}";
    	
    	List<String> result = Lists.newArrayList();
    	
    	 Pattern p = Pattern.compile(regexp);
         Matcher m = p.matcher(target); // get a matcher object
         int count = 0;
         while(m.find()) {
             String expression = m.group();
             CharMatcher charMatcher = CharMatcher.anyOf("{}");
             String trimmed = charMatcher.replaceFrom(expression, " ");
             Iterables.addAll(result, Splitter.on(CharMatcher.WHITESPACE).trimResults().omitEmptyStrings().split(trimmed.replace("key:", "")));
        	               
         }
    	
    	       	
    	
    	// test
    	for (String value : result) {
    		System.out.println("=>" + value);			
		}
    	
    	
    	    	
    	
    	
    	
    	return result;
    	
    	
    }
}