/* These routines may be quite inefficient, but it's used only to emulate old
 * standards. */

#ifndef EMULATE_JISX0213_2000_ENCODE_INVALID
#  define EMULATE_JISX0213_2000_ENCODE_INVALID 1
#endif

#define EMULATE_JISX0213_2000_ENCODE_BMP(config, assi, c)               \
    if ((config) == (void *)2000 && (                                   \
                    (c) == 0x9B1C || (c) == 0x4FF1 ||                   \
                    (c) == 0x525D || (c) == 0x541E ||                   \
                    (c) == 0x5653 || (c) == 0x59F8 ||                   \
                    (c) == 0x5C5B || (c) == 0x5E77 ||                   \
                    (c) == 0x7626 || (c) == 0x7E6B)) {                  \
        return EMULATE_JISX0213_2000_ENCODE_INVALID;                    \
    }                                                                   \
    else if ((config) == (void *)2000 && (c) == 0x9B1D) {               \
        (assi) = 0x8000 | 0x7d3b;                                       \
    }

#define EMULATE_JISX0213_2000_ENCODE_EMP(config, assi, c)               \
    if ((config) == (void *)2000 && (c) == 0x20B9F) {                   \
        return EMULATE_JISX0213_2000_ENCODE_INVALID;                    \
    }

#ifndef EMULATE_JISX0213_2000_DECODE_INVALID
#  define EMULATE_JISX0213_2000_DECODE_INVALID 2
#endif

#define EMULATE_JISX0213_2000_DECODE_PLANE1(config, assi, c1, c2)       \
    if ((config) == (void *)2000 &&                                     \
                    (((c1) == 0x2E && (c2) == 0x21) ||                  \
                     ((c1) == 0x2F && (c2) == 0x7E) ||                  \
                     ((c1) == 0x4F && (c2) == 0x54) ||                  \
                     ((c1) == 0x4F && (c2) == 0x7E) ||                  \
                     ((c1) == 0x74 && (c2) == 0x27) ||                  \
                     ((c1) == 0x7E && (c2) == 0x7A) ||                  \
                     ((c1) == 0x7E && (c2) == 0x7B) ||                  \
                     ((c1) == 0x7E && (c2) == 0x7C) ||                  \
                     ((c1) == 0x7E && (c2) == 0x7D) ||                  \
                     ((c1) == 0x7E && (c2) == 0x7E))) {                 \
        return EMULATE_JISX0213_2000_DECODE_INVALID;                    \
    }

#define EMULATE_JISX0213_2000_DECODE_PLANE2(config, writer, c1, c2)     \
    if ((config) == (void *)2000 && (c1) == 0x7D && (c2) == 0x3B) {     \
        OUTCHAR(0x9B1D);                                                \
    }

#define EMULATE_JISX0213_2000_DECODE_PLANE2_CHAR(config, assi, c1, c2)  \
    if ((config) == (void *)2000 && (c1) == 0x7D && (c2) == 0x3B) {     \
        (assi) = 0x9B1D;                                                \
    }