| /******************************************************************************* |
| * Copyright (c) 2000, 2011 IBM Corporation and others. |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v. 2.0 which is available at |
| * https://www.eclipse.org/legal/epl-2.0 |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.mylyn.internal.commons.core; |
| |
| import java.io.IOException; |
| import java.io.Reader; |
| |
| /** |
| * <p> |
| * Moved into this package from <code>org.eclipse.jface.internal.text.revisions</code>. |
| * </p> |
| * <p> |
| * Based on {@link org.eclipse.mylyn.internal.commons.core.jface.internal.text.html.SingleCharReader}. |
| * </p> |
| */ |
| public abstract class SingleCharReader extends Reader { |
| |
| /** |
| * @see Reader#read() |
| */ |
| @Override |
| public abstract int read() throws IOException; |
| |
| /** |
| * @see Reader#read(char[],int,int) |
| */ |
| @Override |
| public int read(char cbuf[], int off, int len) throws IOException { |
| int end = off + len; |
| for (int i = off; i < end; i++) { |
| int ch = read(); |
| if (ch == -1) { |
| if (i == off) { |
| return -1; |
| } |
| return i - off; |
| } |
| cbuf[i] = (char) ch; |
| } |
| return len; |
| } |
| |
| /** |
| * @see Reader#ready() |
| */ |
| @Override |
| public boolean ready() throws IOException { |
| return true; |
| } |
| |
| /** |
| * Returns the readable content as string. |
| * |
| * @return the readable content as string |
| * @exception IOException |
| * in case reading fails |
| */ |
| public String getString() throws IOException { |
| StringBuffer buf = new StringBuffer(); |
| int ch; |
| while ((ch = read()) != -1) { |
| buf.append((char) ch); |
| } |
| return buf.toString(); |
| } |
| } |