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/*
* Copyright (c) 2007 Henri Sivonen
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
package nu.validator.htmlparser.test;
import java.io.IOException;
import java.io.InputStream;
public class UntilHashInputStream extends InputStream {
private final StringBuilder builder = new StringBuilder();
private final InputStream delegate;
private int buffer = -1;
private boolean closed = false;
/**
* @param delegate
* @throws IOException
*/
public UntilHashInputStream(final InputStream delegate) throws IOException {
this.delegate = delegate;
this.buffer = delegate.read();
if (buffer == '#') {
closed = true;
}
}
public int read() throws IOException {
if (closed) {
return -1;
}
int rv = buffer;
buffer = delegate.read();
if (buffer == '#' && rv == '\n') {
// end of stream
closed = true;
return -1;
} else {
if (rv >= 0x20 && rv < 0x80) {
builder.append(((char)rv));
} else {
builder.append("0x");
builder.append(Integer.toHexString(rv));
}
return rv;
}
}
/**
* @see java.io.InputStream#close()
*/
@Override
public void close() throws IOException {
super.close();
if (closed) {
return;
}
for (;;) {
int b = delegate.read();
if (b == 0x23 || b == -1) {
break;
}
}
closed = true;
}
/**
* @see java.lang.Object#toString()
*/
@Override
public String toString() {
return builder.toString();
}
}
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