| /* |
| * _gb2312.c: the GB2312 codec |
| * |
| * Written by Hye-Shik Chang <perky@FreeBSD.org> |
| * $CJKCodecs: _gb2312.c,v 1.2 2003/12/31 05:46:55 perky Exp $ |
| */ |
| |
| #include "codeccommon.h" |
| |
| ENCMAP(gbcommon) |
| DECMAP(gb2312) |
| |
| ENCODER(gb2312) |
| { |
| while (inleft > 0) { |
| Py_UNICODE c = IN1; |
| DBCHAR code; |
| |
| if (c < 0x80) { |
| WRITE1((unsigned char)c) |
| NEXT(1, 1) |
| continue; |
| } |
| UCS4INVALID(c) |
| |
| RESERVE_OUTBUF(2) |
| TRYMAP_ENC(gbcommon, code, c); |
| else return 1; |
| |
| if (code & 0x8000) /* MSB set: GBK */ |
| return 1; |
| |
| OUT1((code >> 8) | 0x80) |
| OUT2((code & 0xFF) | 0x80) |
| NEXT(1, 2) |
| } |
| |
| return 0; |
| } |
| |
| DECODER(gb2312) |
| { |
| while (inleft > 0) { |
| unsigned char c = **inbuf; |
| |
| RESERVE_OUTBUF(1) |
| |
| if (c < 0x80) { |
| OUT1(c) |
| NEXT(1, 1) |
| continue; |
| } |
| |
| RESERVE_INBUF(2) |
| TRYMAP_DEC(gb2312, **outbuf, c ^ 0x80, IN2 ^ 0x80) { |
| NEXT(2, 1) |
| } else return 2; |
| } |
| |
| return 0; |
| } |
| |
| #include "codecentry.h" |
| BEGIN_CODEC_REGISTRY(gb2312) |
| MAPOPEN(zh_CN) |
| IMPORTMAP_DEC(gb2312) |
| IMPORTMAP_ENC(gbcommon) |
| MAPCLOSE() |
| END_CODEC_REGISTRY(gb2312) |