SlugTool.java

package com.mozilla.grouperfish.base;

import java.text.Normalizer;
import java.text.Normalizer.Form;
import java.util.Locale;
import java.util.regex.Pattern;


public class SlugTool {

	/**
	 * http://stackoverflow.com/questions/1657193/
	 * @param input
	 * @return A representation of the input string, containing only non-whitespace, latin characters.
	 */
	public static String toSlug(String input) {
	    String nowhitespace = WHITESPACE.matcher(input).replaceAll("-");
	    String normalized = Normalizer.normalize(nowhitespace, Form.NFD);
	    String slug = NONLATIN.matcher(normalized).replaceAll("");
	    return slug.toLowerCase(Locale.ENGLISH);
	}

	private static final Pattern NONLATIN = Pattern.compile("[^\\w-]");
	private static final Pattern WHITESPACE = Pattern.compile("[\\s]");

}