org.jboss.as.cli.parsing.LineBreakHandler Maven / Gradle / Ivy
/*
* JBoss, Home of Professional Open Source.
* Copyright 2011, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.as.cli.parsing;
import org.jboss.as.cli.CommandFormatException;
import org.jboss.as.cli.Util;
/**
*
* @author Alexey Loubyansky
*/
public class LineBreakHandler implements CharacterHandler {
private final boolean fallbackToEscape;
private final boolean leaveOnLnBreak;
public LineBreakHandler(boolean leaveOnLnBreak, boolean fallbackToEscape) {
this.leaveOnLnBreak = leaveOnLnBreak;
this.fallbackToEscape = fallbackToEscape;
}
@Override
public void handle(ParsingContext ctx) throws CommandFormatException {
if(ctx.getCharacter() == '\\') {
if(ctx.getInput().length() > ctx.getLocation() + Util.LINE_SEPARATOR.length() &&
ctx.getInput().startsWith(Util.LINE_SEPARATOR, ctx.getLocation() + 1)) {
if(leaveOnLnBreak) {
ctx.leaveState();
ctx.advanceLocation(Util.LINE_SEPARATOR.length());
}
} else if(fallbackToEscape){
ctx.enterState(EscapeCharacterState.INSTANCE);
} else {
doHandle(ctx);
}
} else {
doHandle(ctx);
}
}
protected void doHandle(ParsingContext ctx) throws CommandFormatException {}
}