Java String Normalize normalize(String s)

Description

Normalizes a string by removing features that should not be considered as differentiating between two strings (such as accents and case).

License

Open Source License

Parameter

Parameter	Description
s	The <code>String</code> to normalize.

Return

A canonical representation of String.

Declaration

public static String normalize(String s) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.text.Normalizer;

public class Main {
    /**//  ww w.  ja  v a2 s .co m
     * Normalizes a string by removing features that should not be considered
     * as differentiating between two strings (such as accents and case).
     * @param s The <code>String</code> to normalize.
     * @return A canonical representation of <code>String</code>.
     */
    public static String normalize(String s) {

        s = Normalizer.normalize(s, Normalizer.Form.NFD);

        // remove accents
        s = s.replaceAll("\\p{InCombiningDiacriticalMarks}+", "");

        // make everything lower-case to make all comparisons case-insensitive. 
        s = s.toLowerCase();

        /* only consider alphanumeric characters -- remove all others.  This
         * also has the effect of reducing all word breaks to a single space.
         */
        s = s.replaceAll("[^a-z0-9]+", " ");

        /* add word break at letter-number boundaries.  Model numbers composed
         * of letters and numbers should be treated as being composed of
         * separate words, since in some listings they may be written with
         * or without intervening characters.
         */
        s = s.replaceAll("([a-z])([0-9])", "$1 $2");
        s = s.replaceAll("([0-9])([a-z])", "$1 $2");

        return s;

    }
}

Related

1. normalize(String in)
2. normalize(String name)
3. normalize(String s)
4. normalize(String s)
5. normalize(String s)
6. normalize(String string)
7. normalize(String string)
8. normalize(String string)
9. normalize(String text)