/* | |
* Licensed to the Apache Software Foundation (ASF) under one | |
* or more contributor license agreements. See the NOTICE file | |
* distributed with this work for additional information | |
* regarding copyright ownership. The ASF licenses this file | |
* to you 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.apache.uima.ruta.ide.ui.documentation; | |
import org.eclipse.dltk.core.IBuffer; | |
import org.eclipse.dltk.corext.documentation.SingleCharReader; | |
public class RutaCommentReader extends SingleCharReader { | |
private IBuffer fBuffer; | |
private int fCurrPos; | |
private int fStartPos; | |
private int fEndPos; | |
private boolean fWasNewLine; | |
public RutaCommentReader(IBuffer buf, int start, int end) { | |
fBuffer = buf; | |
fStartPos = start; | |
fEndPos = end; | |
reset(); | |
} | |
/** | |
* @see java.io.Reader#read() | |
*/ | |
@Override | |
public int read() { | |
if (fCurrPos < fEndPos) { | |
char ch; | |
if (fWasNewLine) { | |
do { | |
ch = fBuffer.getChar(fCurrPos++); | |
} while (fCurrPos < fEndPos && Character.isWhitespace(ch)); | |
if (ch == '#') { | |
if (fCurrPos < fEndPos) { | |
do { | |
ch = fBuffer.getChar(fCurrPos++); | |
} while (ch == '#'); | |
} else { | |
return -1; | |
} | |
} | |
} else { | |
ch = fBuffer.getChar(fCurrPos++); | |
} | |
fWasNewLine = (ch == '\n' || ch == '\r'); | |
return ch; | |
} | |
return -1; | |
} | |
/** | |
* @see java.io.Reader#close() | |
*/ | |
@Override | |
public void close() { | |
fBuffer = null; | |
} | |
/** | |
* @see java.io.Reader#reset() | |
*/ | |
@Override | |
public void reset() { | |
fCurrPos = fStartPos; | |
fWasNewLine = true; | |
} | |
/** | |
* Returns the offset of the last read character in the passed buffer. | |
*/ | |
public int getOffset() { | |
return fCurrPos; | |
} | |
} |