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/*******************************************************************************
* Copyright (c) 2000, 2005 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.jface.internal.text.link.contentassist;
import java.io.IOException;
import java.io.Reader;
abstract class SingleCharReader extends Reader {
/**
* @see Reader#read()
*/
public abstract int read() throws IOException;
/**
* @see Reader#read(char[],int,int)
*/
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()
*/
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();
}
}
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