void add_decomp_data()

in GaiaXAndroidQuickJS/quickjs/gxquickjs/unicode_gen.c [2456:2588]

• 131 lines of code
• 30 McCabe index (conditional complexity)

void add_decomp_data(uint8_t *data_buf, int *pidx, DecompEntry *de)
{
    int i, j, idx, c;
    CCInfo *ci;
    
    idx = *pidx;
    de->data_index = idx;
    if (de->type <= DECOMP_TYPE_C1) {
        ci = &unicode_db[de->code];
        assert(ci->decomp_len == 1);
        de->data_index = ci->decomp_data[0];
    } else if (de->type <= DECOMP_TYPE_L7) {
        for(i = 0; i < de->len; i++) {
            ci = &unicode_db[de->code + i];
            for(j = 0; j < de->c_len; j++) {
                if (ci->decomp_len == 0)
                    c = 0;
                else
                    c = ci->decomp_data[j];
                put16(data_buf, &idx,  c);
            }
        }
    } else if (de->type <= DECOMP_TYPE_LL2) {
        int n, p, k;
        n = (de->len * de->c_len * 18 + 7) / 8;
        p = de->len * de->c_len * 2;
        memset(data_buf + idx, 0, n);
        k = 0;
        for(i = 0; i < de->len; i++) {
            ci = &unicode_db[de->code + i];
            for(j = 0; j < de->c_len; j++) {
                if (ci->decomp_len == 0)
                    c = 0;
                else
                    c = ci->decomp_data[j];
                data_buf[idx + k * 2] = c;
                data_buf[idx + k * 2 + 1] = c >> 8;
                data_buf[idx + p + (k / 4)] |= (c >> 16) << ((k % 4) * 2);
                k++;
            }
        }
        idx += n;
    } else if (de->type <= DECOMP_TYPE_S5) {
        for(i = 0; i < de->len; i++) {
            ci = &unicode_db[de->code + i];
            for(j = 0; j < de->c_len; j++) {
                if (ci->decomp_len == 0)
                    c = 0;
                else
                    c = ci->decomp_data[j];
                c = get_short_code(c);
                assert(c >= 0);
                data_buf[idx++] = c;
            }
        }
    } else if (de->type <= DECOMP_TYPE_I4_2) {
        ci = &unicode_db[de->code];
        assert(ci->decomp_len == de->c_len);
        for(j = 0; j < de->c_len; j++)
            put16(data_buf, &idx, ci->decomp_data[j]);
    } else if (de->type <= DECOMP_TYPE_B18) {
        c = de->c_min;
        data_buf[idx++] = c;
        data_buf[idx++] = c >> 8;
        for(i = 0; i < de->len; i++) {
            ci = &unicode_db[de->code + i];
            for(j = 0; j < de->c_len; j++) {
                assert(ci->decomp_len == de->c_len);
                c = ci->decomp_data[j];
                if (c == 0x20) {
                    c = 0xff;
                } else {
                    c -= de->c_min;
                    assert((uint32_t)c <= 254);
                }
                data_buf[idx++] = c;
            }
        }
    } else if (de->type <= DECOMP_TYPE_LS2) {
        assert(de->c_len == 2);
        for(i = 0; i < de->len; i++) {
            ci = &unicode_db[de->code + i];
            if (ci->decomp_len == 0)
                c = 0;
            else
                c = ci->decomp_data[0];
            put16(data_buf, &idx,  c);

            if (ci->decomp_len == 0)
                c = 0;
            else
                c = ci->decomp_data[1];
            c = get_short_code(c);
            assert(c >= 0);
            data_buf[idx++] = c;
        }
    } else if (de->type <= DECOMP_TYPE_PAT3) {
        ci = &unicode_db[de->code];
        assert(ci->decomp_len == 3);
        put16(data_buf, &idx,  ci->decomp_data[0]);
        put16(data_buf, &idx,  ci->decomp_data[2]);
        for(i = 0; i < de->len; i++) {
            ci = &unicode_db[de->code + i];
            assert(ci->decomp_len == 3);
            put16(data_buf, &idx,  ci->decomp_data[1]);
        }
    } else if (de->type <= DECOMP_TYPE_S2_UL) {
        for(i = 0; i < de->len; i += 2) {
            ci = &unicode_db[de->code + i];
            c = ci->decomp_data[0];
            c = get_short_code(c);
            assert(c >= 0);
            data_buf[idx++] = c;
            c = ci->decomp_data[1];
            c = get_short_code(c);
            assert(c >= 0);
            data_buf[idx++] = c;
        }
    } else if (de->type <= DECOMP_TYPE_LS2_UL) {
        for(i = 0; i < de->len; i += 2) {
            ci = &unicode_db[de->code + i];
            c = ci->decomp_data[0];
            put16(data_buf, &idx,  c);
            c = ci->decomp_data[1];
            c = get_short_code(c);
            assert(c >= 0);
            data_buf[idx++] = c;
        }
    } else {
        abort();
    }
    *pidx = idx;
}