| /* |
| |
| Copyright 2002-2003 The Apache Software Foundation |
| |
| 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.apache.batik.util.io; |
| |
| import java.io.IOException; |
| import java.io.Reader; |
| |
| /** |
| * This class represents a reader which normalizes the line break: \n, |
| * \r, \r\n are replaced by \n. The methods of this reader are not |
| * synchronized. The input is buffered. |
| * |
| * @author <a href="mailto:stephane@hillion.org">Stephane Hillion</a> |
| * @version $Id: NormalizingReader.java,v 1.1 2009/12/06 10:40:09 rsternber Exp $ |
| */ |
| public abstract class NormalizingReader extends Reader { |
| |
| /** |
| * Read characters into a portion of an array. |
| * @param cbuf Destination buffer |
| * @param off Offset at which to start writing characters |
| * @param len Maximum number of characters to read |
| * @return The number of characters read, or -1 if the end of the |
| * stream has been reached |
| */ |
| public int read(char cbuf[], int off, int len) throws IOException { |
| if (len == 0) { |
| return 0; |
| } |
| |
| int c = read(); |
| if (c == -1) { |
| return -1; |
| } |
| int result = 0; |
| do { |
| cbuf[result + off] = (char)c; |
| result++; |
| c = read(); |
| } while (c != -1 && result < len); |
| return result; |
| } |
| |
| /** |
| * Returns the current line in the stream. |
| */ |
| public abstract int getLine(); |
| |
| /** |
| * Returns the current column in the stream. |
| */ |
| public abstract int getColumn(); |
| |
| } |