mirror of
git://gcc.gnu.org/git/gcc.git
synced 2024-12-27 11:08:58 +08:00
2ba5f77454
* All files: Updated copyright information. * COPYING: New file. * COPYING.LIB: Removed. * LIBGCJ_LICENSE: We now use GPL + special exception. From-SVN: r32387
77 lines
1.7 KiB
C++
77 lines
1.7 KiB
C++
/* Copyright (C) 1999 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. */
|
|
|
|
#include <config.h>
|
|
#include <gcj/cni.h>
|
|
#include <gnu/gcj/convert/Input_SJIS.h>
|
|
|
|
#define ERROR_CHAR 0xFFFD
|
|
|
|
extern unsigned short JIS0208_to_Unicode[84][94];
|
|
extern unsigned short JIS0212_to_Unicode[76][94];
|
|
|
|
jint
|
|
gnu::gcj::convert::Input_SJIS::read(jcharArray outbuffer, jint outpos,
|
|
jint count)
|
|
{
|
|
jint start_outpos = outpos;
|
|
for (;;)
|
|
{
|
|
if (outpos - start_outpos >= count)
|
|
break;
|
|
if (inpos >= inlength)
|
|
break;
|
|
int b = ((unsigned char*) elements(inbuffer))[inpos++];
|
|
if (first_byte == 0)
|
|
{
|
|
if (b < 128)
|
|
{
|
|
#if 1
|
|
// Technically, we should translate 0x5c to Yen symbol;
|
|
// in practice, it is not clear.
|
|
if (b == 0x5c)
|
|
b = 0x00A5; // Yen sign.
|
|
#endif
|
|
elements(outbuffer)[outpos++] = (char) b;
|
|
}
|
|
else if (b >= 0xA1 && b <= 0xDF)
|
|
{
|
|
b += 0xFF61 - 0xA1;
|
|
elements(outbuffer)[outpos++] = b;
|
|
}
|
|
else
|
|
first_byte = b;
|
|
}
|
|
else
|
|
{
|
|
// From Lunde: "CJKV Informatio Processing", O'Reilly, 1999, p 420:
|
|
bool adjust = b < 159;
|
|
int rowOffset = first_byte < 160 ? 112 : 176;
|
|
int cellOffset = adjust ? (b > 127 ? 32 : 31) : 126;
|
|
first_byte = ((first_byte - rowOffset) << 1) - adjust;
|
|
b -= cellOffset;
|
|
|
|
first_byte -= 33;
|
|
b -= 33;
|
|
|
|
if ((unsigned) first_byte >= 84 || (unsigned) b >= 94)
|
|
b = ERROR_CHAR;
|
|
else
|
|
{
|
|
b = JIS0208_to_Unicode[first_byte][b];
|
|
if (b == 0)
|
|
b = ERROR_CHAR;
|
|
}
|
|
elements(outbuffer)[outpos++] = b;
|
|
|
|
first_byte = 0;
|
|
}
|
|
}
|
|
return outpos - start_outpos;
|
|
}
|