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Infinispan CLI All-in-One module

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/*
 * JBoss, Home of Professional Open Source
 * Copyright 2014 Red Hat Inc. and/or its affiliates and other contributors
 * as indicated by the @authors tag. All rights reserved.
 * See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * 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.
 */
package org.jboss.aesh.edit.actions;

/**
 * @author Ståle W. Pedersen 
 */
public class PrevSpaceWordAction extends EditAction {

    public PrevSpaceWordAction(int start, Action action) {
        super(start, action);
    }

    @Override
    public void doAction(String buffer) {
        int cursor = getStart();

        //the cursor position in jline might be > the buffer
        if(cursor > buffer.length())
            cursor = buffer.length()-1;

        //move back every potential space first
        while(cursor > 0 && isSpace(buffer.charAt(cursor-1)))
            cursor--;

        while(cursor > 0 && !isSpace(buffer.charAt(cursor-1)))
            cursor--;

        setEnd(cursor);
    }
}