package org.json.zip;

import java.io.IOException;

public interface BitReader {

/**

* Read one bit.

*

* @return true if it is a 1 bit.

*/

public boolean bit() throws IOException;

/**

* Returns the number of bits that have been read from this bitreader.

*

* @return The number of bits read so far.

*/

public long nrBits();

/**

* Check that the rest of the block has been padded with zeroes.

*

* @param factor

* The size in bits of the block to pad. This will typically be

* 8, 16, 32, 64, 128, 256, etc.

* @return true if the block was zero padded, or false if the the padding

* contained any one bits.

* @throws IOException

*/

public boolean pad(int factor) throws IOException;

/**

* Read some bits.

*

* @param width

* The number of bits to read. (0..32)

* @throws IOException

* @return the bits

*/

public int read(int width) throws IOException;

}