old-autovect-branch/libjava/gnu/gcj/convert/Input_ASCII.java

   1 /* Copyright (C) 2000  Free Software Foundation
   2
   3    This file is part of libgcj.
   4
   5 This software is copyrighted work licensed under the terms of the
   6 Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
   7 details.  */
   8
   9 package gnu.gcj.convert;
  10
  11 /**
  12  * Convert ASCII text to Unicode.
  13  * @date October 2000
  14  */
  15
  16 public class Input_ASCII extends BytesToUnicode
  17 {
  18   public String getName() { return "ASCII"; }
  19
  20   public int read (char[] outbuffer, int outpos, int count)
  21   {
  22     int origpos = outpos;
  23     // Make sure fields of this are in registers.
  24     int inpos = this.inpos;
  25     byte[] inbuffer = this.inbuffer;
  26     int inavail = this.inlength - inpos;
  27     int outavail = count;
  28     if (outavail > inavail)
  29       outavail = inavail;
  30     while (--outavail >= 0)
  31       {
  32         outbuffer[outpos++] = (char) (inbuffer[inpos++] & 0x7f);
  33       }
  34     this.inpos = inpos;
  35     return outpos - origpos;
  36   }
  37 }