Source for gnu.gcj.convert.Input_UnicodeLittle

   1: /* Copyright (C) 2004  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: public class Input_UnicodeLittle extends BytesToUnicode
  12: {
  13:   /** 0, 8, or 16 bits of a partially constructed character. */
  14:   char partial;
  15:   /** How many bytes of partial are valid. */
  16:   int partial_count;
  17: 
  18:   public String getName() { return "UnicodeLittle"; }
  19: 
  20:   public int read (char[] outbuffer, int outpos, int count)
  21:   {
  22:     int origcount = count;
  23:     for (;;)
  24:       {
  25:     if (partial_count == 2)
  26:       {
  27:         if (count == 0)
  28:           break;
  29:         if (partial == 0xFEFF)
  30:           ; // drop byte order mark
  31:         // else if (partial >= 0xFFFe)  ERROR;
  32:         else
  33:           outbuffer[outpos++] = partial;
  34:         count--;
  35:         partial_count = 0;
  36:         partial = 0;
  37:       }
  38:     else if (inpos >= inlength)
  39:       break;
  40:     else
  41:       {
  42:         int b = inbuffer[inpos++] & 0xFF;
  43:         partial = (char) (partial | (b << (8 * partial_count)));
  44:         partial_count++;
  45:       }
  46:       }
  47:     return origcount - count;
  48:   }
  49: }