/*

  * Copyright 2008 - 2008 JEuclid, http://jeuclid.sf.net

  *

  * Licensed under the Apache License, Version 2.0 (the "License");

  * you may not use this file except in compliance with the License.

  * You may obtain a copy of the License at

  *

  *      http://www.apache.org/licenses/LICENSE-2.0

  *

  * Unless required by applicable law or agreed to in writing, software

  * distributed under the License is distributed on an "AS IS" BASIS,

  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

  * See the License for the specific language governing permissions and

  * limitations under the License.

  */

 /* $Id: OperatorForm.java,v cae99f384592 2009/06/03 12:42:28 maxberger $ */

 package net.sourceforge.jeuclid.elements.support.operatordict;

 import java.util.Locale;

 /**

  * @version $Revision: cae99f384592 $

  */

 public enum OperatorForm {

     /** Prefix form, e.g. +a. */

     PREFIX,

     /** Infix form, e.g. a+a. */

     INFIX,

     /** Postfix form, e.g. a+. */

     POSTFIX;

     private OperatorForm() {

         // Empty on purpose.

     }

     /**

      * Parse a String into an OperatorForm.

      * 

      * @param form

      *            the string to parse

      * @return an OperatorForm

      */

     public static OperatorForm parseOperatorForm(final String form) {

         try {

             return OperatorForm.valueOf(form.toUpperCase(Locale.US));

         } catch (final IllegalArgumentException iae) {

             return OperatorForm.INFIX;

         }

     }

 }