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Viewing changes to systemtap/org.eclipse.linuxtools.systemtap.ui.ide/src/org/eclipse/linuxtools/internal/systemtap/ui/ide/editors/stp/ScannerContext.java

  • Committer: Package Import Robot
  • Author(s): Jakub Adam
  • Date: 2014-05-12 18:11:40 UTC
  • mfrom: (3.1.2 sid)
  • Revision ID: package-import@ubuntu.com-20140512181140-w237r3vsah1tmybz
Tags: 2.2.1-1
* New upstream release.
* Refreshed d/patches.
* Removed eclipse-cdt-valgrind-remote package, all its functionality
  is now provided by eclipse-cdt-profiling-framework-remote.
* Added remove-license-feature.patch.
* Bump Standards-Version to 3.9.5.
* Enable eclipse-changelog package.
* Enable eclipse-rpm-editor package.

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systemtap/org.eclipse.linuxtools.systemtap.ui.ide/src/org/eclipse/linuxtools/internal/systemtap/ui/ide/editors/stp/ScannerContext.java
 
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/*******************************************************************************
 
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 * Copyright (c) 2004, 2008, 2013 IBM Corporation and others.
 
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 * All rights reserved. This program and the accompanying materials
 
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 * are made available under the terms of the Eclipse Public License v1.0
 
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 * which accompanies this distribution, and is available at
 
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 * http://www.eclipse.org/legal/epl-v10.html
 
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 *
 
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 * Contributors:
 
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 *     IBM Corporation - initial implementation
 
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 *     Anton Leherbauer - adding tokens for preprocessing directives
 
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 *     Markus Schorn - classification of preprocessing directives.
 
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 *     Red Hat Inc. - modified for use in SystemTap
 
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 *******************************************************************************/
 
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package org.eclipse.linuxtools.internal.systemtap.ui.ide.editors.stp;
 
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import java.io.IOException;
 
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import java.io.Reader;
 
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import java.util.Stack;
 
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public class ScannerContext {
 
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        private Reader fReader;
 
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        private int fOffset;
 
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        private Stack<Integer> fUndo = new Stack<Integer>();
 
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        public ScannerContext() {
 
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        }
 
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        public ScannerContext initialize(Reader r) {
 
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                fReader = r;
 
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                fOffset = 0;
 
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                return this;
 
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        }
 
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        public ScannerContext initialize(Reader r, int offset) {
 
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                try {
 
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                        r.skip(offset);
 
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                } catch (IOException exc) {
 
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                        throw new RuntimeException(exc);
 
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                }
 
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                fReader = r;
 
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                fOffset = offset;
 
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                return this;
 
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        }
 
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        public int read() throws IOException {
 
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                ++fOffset;
 
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                return fReader.read();
 
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        }
 
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        /**
 
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         * Returns the offset.
 
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         * @return int
 
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         */
 
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        public final int getOffset() {
 
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                return fOffset;
 
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        }
 
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        /**
 
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         * Returns the reader.
 
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         * @return Reader
 
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         */
 
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        public final Reader getReader() {
 
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                return fReader;
 
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        }
 
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        public final int undoStackSize() {
 
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                return fUndo.size();
 
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        }
 
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        /**
 
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         * Returns the undo.
 
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         * @return int
 
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         */
 
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        public final int popUndo() {
 
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                return fUndo.pop().intValue();
 
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        }
 
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        /**
 
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         * Sets the undo.
 
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         * @param undo The undo to set
 
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         */
 
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        public void pushUndo(int undo) {
 
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                this.fUndo.push(new Integer(undo));
 
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        }
 
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}