static int get_unicode(textw_text_enum_t *penum, gs_font *font, gs_glyph glyph, gs_char ch, unsigned short *Buffer)
{
    int code;
    gs_const_string gnstr;
    unsigned short fallback = ch;
    ushort *unicode = NULL;
    int length;

    length = font->procs.decode_glyph((gs_font *)font, glyph, ch, NULL, 0);
    if (length == 0) {
        if (glyph != GS_NO_GLYPH) {
            code = font->procs.glyph_name(font, glyph, &gnstr);
            if (code >= 0 && gnstr.size == 7) {
                if (!memcmp(gnstr.data, "uni", 3)) {
                    static const char *hexdigits = "0123456789ABCDEF";
                    char *d0 = strchr(hexdigits, gnstr.data[3]);
                    char *d1 = strchr(hexdigits, gnstr.data[4]);
                    char *d2 = strchr(hexdigits, gnstr.data[5]);
                    char *d3 = strchr(hexdigits, gnstr.data[6]);

                    if (d0 != NULL && d1 != NULL && d2 != NULL && d3 != NULL) {
                        *Buffer++ = ((d0 - hexdigits) << 12) + ((d1 - hexdigits) << 8) + ((d2 - hexdigits) << 4) + (d3 - hexdigits);
                        return 1;
                    }
                }
            }
            if (length == 0) {
                single_glyph_list_t *sentry = (single_glyph_list_t *)&SingleGlyphList;
                double_glyph_list_t *dentry = (double_glyph_list_t *)&DoubleGlyphList;
                treble_glyph_list_t *tentry = (treble_glyph_list_t *)&TrebleGlyphList;
                quad_glyph_list_t *qentry = (quad_glyph_list_t *)&QuadGlyphList;

                /* Search glyph to single Unicode value table */
                while (sentry->Glyph != 0) {
                    if (sentry->Glyph[0] < gnstr.data[0]) {
                        sentry++;
                        continue;
                    }
                    if (sentry->Glyph[0] > gnstr.data[0]){
                        break;
                    }
                    if (strlen(sentry->Glyph) == gnstr.size) {
                        if(memcmp(gnstr.data, sentry->Glyph, gnstr.size) == 0) {
                            *Buffer = sentry->Unicode;
                            return 1;
                        }
                    }
                    sentry++;
                }

                /* Search glyph to double Unicode value table */
                while (dentry->Glyph != 0) {
                    if (dentry->Glyph[0] < gnstr.data[0]) {
                        dentry++;
                        continue;
                    }
                    if (dentry->Glyph[0] > gnstr.data[0]){
                        break;
                    }
                    if (strlen(dentry->Glyph) == gnstr.size) {
                        if(memcmp(gnstr.data, dentry->Glyph, gnstr.size) == 0) {
                            memcpy(Buffer, dentry->Unicode, 2);
                            return 2;
                        }
                    }
                    dentry++;
                }

                /* Search glyph to triple Unicode value table */
                while (tentry->Glyph != 0) {
                    if (tentry->Glyph[0] < gnstr.data[0]) {
                        tentry++;
                        continue;
                    }
                    if (tentry->Glyph[0] > gnstr.data[0]){
                        break;
                    }
                    if (strlen(tentry->Glyph) == gnstr.size) {
                        if(memcmp(gnstr.data, tentry->Glyph, gnstr.size) == 0) {
                            memcpy(Buffer, tentry->Unicode, 3);
                            return 3;
                        }
                    }
                    tentry++;
                }

                /* Search glyph to quadruple Unicode value table */
                while (qentry->Glyph != 0) {
                    if (qentry->Glyph[0] < gnstr.data[0]) {
                        qentry++;
                        continue;
                    }
                    if (qentry->Glyph[0] > gnstr.data[0]){
                        break;
                    }
                    if (strlen(qentry->Glyph) == gnstr.size) {
                        if(memcmp(gnstr.data, qentry->Glyph, gnstr.size) == 0) {
                            memcpy(Buffer, qentry->Unicode, 4);
                            return 4;
                        }
                    }
                    qentry++;
                }
            }
        }
        *Buffer = fallback;
        return 1;
    } else {
        char *b, *u;
        int l = length - 1;

        unicode = (ushort *)gs_alloc_bytes(penum->dev->memory, length, "temporary Unicode array");
        length = font->procs.decode_glyph((gs_font *)font, glyph, ch, unicode, length);
#if ARCH_IS_BIG_ENDIAN
        memcpy(Buffer, unicode, length);
#else
        b = (char *)Buffer;
        u = (char *)unicode;
        while (l >= 0) {
            *b++ = *(u + l);
            l--;
        }

#endif
        gs_free_object(penum->dev->memory, unicode, "free temporary unicode buffer");
        return length / sizeof(short);
    }
}
Unknown