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/* Copyright (C) 2000  Free Software Foundation

   This file is part of libgcj.

This software is copyrighted work licensed under the terms of the

Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for

details.  */

package gnu.gcj.convert;

/**

 * Convert Unicode ASCII

 * Unrecognized characters are printed as `?'.

 * @date October 2000

 */

public class Output_ASCII extends UnicodeToBytes

{

  public String getName() { return "ASCII"; }

  /**

   * @return number of chars converted. */

  public int write (char[] inbuffer, int inpos, int inlength)

  {

    int count = this.count;

    byte[] buf = this.buf;

    int avail = buf.length - count;

    if (inlength > avail)

      inlength = avail;

    for (int i = inlength;  --i >= 0;  )

      {

        char c = inbuffer[inpos++];

        buf[count++] = (byte) ((c > 0x7f) ? '?' : c);

      }

    this.count = count;

    return inlength;

  }

  public int write (String str, int inpos, int inlength, char[] work)

  {

    int count = this.count;

    byte[] buf = this.buf;

    int avail = buf.length - count;

    if (inlength > avail)

      inlength = avail;

    for (int i = inlength;  --i >= 0;  )

      {

        char c = str.charAt(inpos++);

        buf[count++] = (byte) ((c > 0x7f) ? '?' : c);

      }

    this.count = count;

    return inlength;

  }

}