1 /* Copyright (C) 1999 Red Hat, Inc.
3 This file is part of libgcj.
5 This software is copyrighted work licensed under the terms of the
6 Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
11 #include <gnu/gcj/convert/Input_SJIS.h>
13 #define ERROR_CHAR 0xFFFD
15 extern unsigned short JIS0208_to_Unicode[84][94];
16 extern unsigned short JIS0212_to_Unicode[76][94];
19 gnu::gcj::convert::Input_SJIS::read(jcharArray outbuffer, jint outpos,
22 jint start_outpos = outpos;
25 if (outpos - start_outpos >= count)
27 if (inpos >= inlength)
29 int b = ((unsigned char*) elements(inbuffer))[inpos++];
35 // Technically, we should translate 0x5c to Yen symbol;
36 // in practice, it is not clear.
38 b = 0x00A5; // Yen sign.
40 elements(outbuffer)[outpos++] = (char) b;
42 else if (b >= 0xA1 && b <= 0xDF)
45 elements(outbuffer)[outpos++] = b;
52 // From Lunde: "CJKV Informatio Processing", O'Reilly, 1999, p 420:
53 bool adjust = b < 159;
54 int rowOffset = first_byte < 160 ? 112 : 176;
55 int cellOffset = adjust ? (b > 127 ? 32 : 31) : 126;
56 first_byte = ((first_byte - rowOffset) << 1) - adjust;
62 if ((unsigned) first_byte >= 84 || (unsigned) b >= 94)
66 b = JIS0208_to_Unicode[first_byte][b];
70 elements(outbuffer)[outpos++] = b;
75 return outpos - start_outpos;