EmbeddedPkg: Extend NvVarStoreFormattedLib LIBRARY_CLASS

[mirror_edk2.git] / AppPkg / Applications / Python / Python-2.7.10 / Modules / cjkcodecs / _codecs_hk.c

/*\r
 * _codecs_hk.c: Codecs collection for encodings from Hong Kong\r
 *\r
 * Written by Hye-Shik Chang <perky@FreeBSD.org>\r
 */\r
\r
#define USING_IMPORTED_MAPS\r
\r
#include "cjkcodecs.h"\r
#include "mappings_hk.h"\r
\r
/*\r
 * BIG5HKSCS codec\r
 */\r
\r
static const encode_map *big5_encmap = NULL;\r
static const decode_map *big5_decmap = NULL;\r
\r
CODEC_INIT(big5hkscs)\r
{\r
    static int initialized = 0;\r
\r
    if (!initialized && IMPORT_MAP(tw, big5, &big5_encmap, &big5_decmap))\r
        return -1;\r
    initialized = 1;\r
    return 0;\r
}\r
\r
/*\r
 * There are four possible pair unicode -> big5hkscs maps as in HKSCS 2004:\r
 *  U+00CA U+0304 -> 8862  (U+00CA alone is mapped to 8866)\r
 *  U+00CA U+030C -> 8864\r
 *  U+00EA U+0304 -> 88a3  (U+00EA alone is mapped to 88a7)\r
 *  U+00EA U+030C -> 88a5\r
 * These are handled by not mapping tables but a hand-written code.\r
 */\r
static const DBCHAR big5hkscs_pairenc_table[4] = {0x8862, 0x8864, 0x88a3, 0x88a5};\r
\r
ENCODER(big5hkscs)\r
{\r
    while (inleft > 0) {\r
        ucs4_t c = **inbuf;\r
        DBCHAR code;\r
        Py_ssize_t insize;\r
\r
        if (c < 0x80) {\r
            REQUIRE_OUTBUF(1)\r
            **outbuf = (unsigned char)c;\r
            NEXT(1, 1)\r
            continue;\r
        }\r
\r
        DECODE_SURROGATE(c)\r
        insize = GET_INSIZE(c);\r
\r
        REQUIRE_OUTBUF(2)\r
\r
        if (c < 0x10000) {\r
            TRYMAP_ENC(big5hkscs_bmp, code, c) {\r
                if (code == MULTIC) {\r
                    if (inleft >= 2 &&\r
                        ((c & 0xffdf) == 0x00ca) &&\r
                        (((*inbuf)[1] & 0xfff7) == 0x0304)) {\r
                        code = big5hkscs_pairenc_table[\r
                            ((c >> 4) |\r
                             ((*inbuf)[1] >> 3)) & 3];\r
                        insize = 2;\r
                    }\r
                    else if (inleft < 2 &&\r
                             !(flags & MBENC_FLUSH))\r
                        return MBERR_TOOFEW;\r
                    else {\r
                        if (c == 0xca)\r
                            code = 0x8866;\r
                        else /* c == 0xea */\r
                            code = 0x88a7;\r
                    }\r
                }\r
            }\r
            else TRYMAP_ENC(big5, code, c);\r
            else return 1;\r
        }\r
        else if (c < 0x20000)\r
            return insize;\r
        else if (c < 0x30000) {\r
            TRYMAP_ENC(big5hkscs_nonbmp, code, c & 0xffff);\r
            else return insize;\r
        }\r
        else\r
            return insize;\r
\r
        OUT1(code >> 8)\r
        OUT2(code & 0xFF)\r
        NEXT(insize, 2)\r
    }\r
\r
    return 0;\r
}\r
\r
#define BH2S(c1, c2) (((c1) - 0x87) * (0xfe - 0x40 + 1) + ((c2) - 0x40))\r
\r
DECODER(big5hkscs)\r
{\r
    while (inleft > 0) {\r
        unsigned char c = IN1;\r
        ucs4_t decoded;\r
\r
        REQUIRE_OUTBUF(1)\r
\r
        if (c < 0x80) {\r
            OUT1(c)\r
            NEXT(1, 1)\r
            continue;\r
        }\r
\r
        REQUIRE_INBUF(2)\r
\r
        if (0xc6 > c || c > 0xc8 || (c < 0xc7 && IN2 < 0xa1)) {\r
            TRYMAP_DEC(big5, **outbuf, c, IN2) {\r
                NEXT(2, 1)\r
                continue;\r
            }\r
        }\r
\r
        TRYMAP_DEC(big5hkscs, decoded, c, IN2)\r
        {\r
            int s = BH2S(c, IN2);\r
            const unsigned char *hintbase;\r
\r
            assert(0x87 <= c && c <= 0xfe);\r
            assert(0x40 <= IN2 && IN2 <= 0xfe);\r
\r
            if (BH2S(0x87, 0x40) <= s && s <= BH2S(0xa0, 0xfe)) {\r
                    hintbase = big5hkscs_phint_0;\r
                    s -= BH2S(0x87, 0x40);\r
            }\r
            else if (BH2S(0xc6,0xa1) <= s && s <= BH2S(0xc8,0xfe)){\r
                    hintbase = big5hkscs_phint_12130;\r
                    s -= BH2S(0xc6, 0xa1);\r
            }\r
            else if (BH2S(0xf9,0xd6) <= s && s <= BH2S(0xfe,0xfe)){\r
                    hintbase = big5hkscs_phint_21924;\r
                    s -= BH2S(0xf9, 0xd6);\r
            }\r
            else\r
                    return MBERR_INTERNAL;\r
\r
            if (hintbase[s >> 3] & (1 << (s & 7))) {\r
                    WRITEUCS4(decoded | 0x20000)\r
                    NEXT_IN(2)\r
            }\r
            else {\r
                    OUT1(decoded)\r
                    NEXT(2, 1)\r
            }\r
            continue;\r
        }\r
\r
        switch ((c << 8) | IN2) {\r
        case 0x8862: WRITE2(0x00ca, 0x0304); break;\r
        case 0x8864: WRITE2(0x00ca, 0x030c); break;\r
        case 0x88a3: WRITE2(0x00ea, 0x0304); break;\r
        case 0x88a5: WRITE2(0x00ea, 0x030c); break;\r
        default: return 2;\r
        }\r
\r
        NEXT(2, 2) /* all decoded code points are pairs, above. */\r
    }\r
\r
    return 0;\r
}\r
\r
\r
BEGIN_MAPPINGS_LIST\r
  MAPPING_DECONLY(big5hkscs)\r
  MAPPING_ENCONLY(big5hkscs_bmp)\r
  MAPPING_ENCONLY(big5hkscs_nonbmp)\r
END_MAPPINGS_LIST\r
\r
BEGIN_CODECS_LIST\r
  CODEC_STATELESS_WINIT(big5hkscs)\r
END_CODECS_LIST\r
\r
I_AM_A_MODULE_FOR(hk)\r