Nfd2nfc.java

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package sandbox;

import java.io.File;
import java.text.Normalizer;

/**
 *
 * @author koduki
 */
public class Nfd2nfc {

    static void parse(File root) {
        for (File f : root.listFiles()) {
            String name = f.toString();
            String nfcName = Normalizer.normalize(name, Normalizer.Form.NFC);

            if (f.isDirectory()) {
                parse(f);
            }
            
            if(!name.equals(nfcName)){
                System.out.println("rename from " + name + " to " + nfcName);
                f.renameTo(new File(nfcName));
            }
        }
    }

    public static void main(String[] args) {
        parse(new File("."));
    }
}