MWCC/Parameter.c

#include "includes/mwcc_decomp.h"

char curparam[4096];
char *descparam = &curparam[0];
char *helpparam = &curparam[1024];
char *defaultparam = &curparam[2048];

#define copy_8(dst, src) \
do {                              \
((unsigned char *) (dst))[0] = ((unsigned char *) (src))[0]; \
} while (0)

#define copy_16(dst, src) \
do {                              \
((unsigned char *) (dst))[0] = ((unsigned char *) (src))[0]; \
((unsigned char *) (dst))[1] = ((unsigned char *) (src))[1]; \
} while (0)

#define copy_32(dst, src) \
do {                              \
((unsigned char *) (dst))[0] = ((unsigned char *) (src))[0]; \
((unsigned char *) (dst))[1] = ((unsigned char *) (src))[1]; \
((unsigned char *) (dst))[2] = ((unsigned char *) (src))[2]; \
((unsigned char *) (dst))[3] = ((unsigned char *) (src))[3]; \
} while (0)

#define inline_write_32(dst, val) do { \
union {unsigned char bytes[4]; unsigned long lg;} _val, _arg;                     \
copy_32(_arg.bytes, val);              \
_val.lg = _arg.lg;                     \
copy_32(dst, _val.bytes);              \
} while (0)

#define inline_write_16(dst, val) do { \
union {unsigned char bytes[2]; unsigned short sh;} _val, _arg;                     \
copy_16(_arg.bytes, val);              \
_val.sh = _arg.sh;                     \
copy_16(dst, _val.bytes);              \
} while (0)

#define inline_write_8(ptr, val) copy_8(ptr, val)

#define inline_andor_32(dst, and, or) do { \
union {unsigned char bytes[4]; unsigned long lg;} _val, _arg, _arg2; \
copy_32(_val.bytes, dst);              \
copy_32(_arg.bytes, and);              \
copy_32(_arg2.bytes, or);              \
_val.lg = (_val.lg & ~_arg.lg) | _arg2.lg; \
copy_32(dst, _val.bytes);              \
} while(0)

#define inline_andor_16(dst, and, or) do { \
union {unsigned char bytes[2]; unsigned short sh;} _val, _arg, _arg2; \
copy_16(_val.bytes, dst);              \
copy_16(_arg.bytes, and);              \
copy_16(_arg2.bytes, or);              \
_val.sh = (_val.sh & ~_arg.sh) | _arg2.sh; \
copy_16(dst, _val.bytes);              \
} while(0)

#define inline_andor_8(dst, and, or) do { \
((unsigned char *) (dst))[0] = (((unsigned char *) (dst))[0] & ~((unsigned char *) (and))[0]) | ((unsigned char *) (or))[0]; \
} while(0)

#define inline_xor_32(dst, arg) do { \
union {unsigned char bytes[4]; unsigned long lg;} _val, _arg; \
copy_32(_val.bytes, dst);              \
copy_32(_arg.bytes, arg);              \
_val.lg = _val.lg ^ _arg.lg;           \
copy_32(dst, _val.bytes);              \
} while(0)

#define inline_xor_16(dst, arg) do { \
union {unsigned char bytes[2]; unsigned short sh;} _val, _arg; \
copy_16(_val.bytes, dst);              \
copy_16(_arg.bytes, arg);              \
_val.sh = _val.sh ^ _arg.sh;           \
copy_16(dst, _val.bytes);              \
} while(0)

#define inline_xor_8(dst, arg) do { \
((unsigned char *) (dst))[0] = (((unsigned char *) (dst))[0] ^ ((unsigned char *) (arg))[0]); \
} while(0)

// forward declaration
static int Param_GetArgument(PARAM_T *param, const char **cparam, int exec);
static int Param_Parse(PARAM_T *param, const char *cparam, int flags);

static int Param_None(PARAM_T *p, const char *pstr, int flags) {
    return 1;
}

static void DescHelpParam_None(PARAM_T *p, const char **desc, const char **help, const char **defaul) {
    *desc = 0;
    *help = 0;
    *defaul = 0;
}

static int CompareParam_None(PARAM_T *p) {
    return 0;
}

static void DescHelpParam_Number(NUM_T *p, const char **desc, const char **help, const char **defaul) {
    unsigned long value;
    unsigned char value8;
    unsigned short value16;

    value = 0;
    *desc = 0;
    if (p->myname)
        *desc = p->myname;

    if (p->size == 1) {
        if (!*desc)
            *desc = "byte";
        if (p->num) copy_8(&value8, p->num);
        value = value8;
    } else if (p->size == 2) {
        if (!*desc)
            *desc = "short";
        if (p->num) copy_16(&value16, p->num);
        value = value16;
    } else if (p->size == 4) {
        if (!*desc)
            *desc = "long";
        if (p->num) copy_32(&value, p->num);
    }

    if (p->size == 4) {
        if (p->lo != p->hi)
            sprintf(helpparam, "range 0x%x - 0x%x", p->lo, p->hi);
        *help = helpparam;
        if (value <= 0x10000)
            sprintf(defaultparam, "%u", value);
        else
            sprintf(defaultparam, "0x%x", value);
        *defaul = defaultparam;
    } else {
        if (p->lo != p->hi)
            sprintf(helpparam, "range %u - %u", p->lo, p->hi);
        *help = helpparam;
        sprintf(defaultparam, "%u", value);
        *defaul = defaultparam;
    }

    if (!p->num)
        *defaul = 0;
    if (p->lo == p->hi)
        *help = 0;
}

static int CompareParam_Number(NUM_T *p) {
    return 0;
}

static int Param_Number(NUM_T *p, const char *pstr, int flags) {
    unsigned long val;
    unsigned long lo;
    unsigned long hi;
    const char *opstr;

    val = 0;
    opstr = pstr;
    if (!pstr[0]) {
        Param_Error(5, "", pstr);
        return 0;
    }

    if (((*pstr == '0') && my_tolower(pstr[1]) == 'x') || (*pstr == '$')) {
        // 218
        if (pstr[0] == '$')
            pstr += 1;
        else
            pstr += 2;

        while (*pstr) {
            if (!my_isxdigit(*pstr)) {
                Param_Error(5, "hexadecimal ", opstr);
                return 0;
            }

            if (val > 0xFFFFFFF) {
                Param_Error(4, opstr);
                return 0;
            }

            val = (val << 4) | (my_isdigit(*pstr) ? (*pstr - '0') : (my_tolower(*pstr) - 'a' + 10));
            ++pstr;
        }
    } else if (pstr[0] == '0') {
        pstr += 1;

        while (*pstr) {
            if (*pstr < '0' || *pstr >= '8') {
                Param_Error(5, "octal ", opstr);
                return 0;
            }

            if (val > 0x1FFFFFFF) {
                Param_Error(4, opstr);
                return 0;
            }

            val = (val << 3) | (*pstr - '0');
            ++pstr;
        }
    } else {
        while (*pstr) {
            if (!my_isdigit(*pstr)) {
                Param_Error(5, "decimal ", opstr);
                return 0;
            }

            if (val > 0x19999999) {
                Param_Error(4, opstr);
                return 0;
            }

            val = (val * 10) + (*pstr - '0');
            ++pstr;
        }
    }

    if (p->lo == p->hi) {
        if (p->size == 1) {
            lo = 0;
            hi = 0xFF;
        } else if (p->size == 2) {
            lo = 0;
            hi = 0xFFFF;
        } else {
            lo = 0;
            hi = 0xFFFFFFFF;
        }
    } else {
        lo = p->lo;
        hi = p->hi;
    }

    if (!p->fit && (val < lo || val > hi)) {
        Param_Error(6, val, lo, hi);
        return 0;
    }

    if (val < lo) {
        Param_Warning(7, val, lo, hi, lo);
        val = lo;
    } else if (val > hi) {
        Param_Warning(7, val, lo, hi, hi);
        val = hi;
    }

    if (p->size == 1) {
        unsigned char val8 = val;
        inline_write_8(p->num, &val8);
    }

    if (p->size == 2) {
        unsigned short val16 = val;
        inline_write_16(p->num, &val16);
    } else if (p->size == 4) {
        unsigned long val32 = val;
        inline_write_32(p->num, &val32);
    }

    return 1;
}

static void DescHelpParam_FTypeCreator(FTYPE_T *p, const char **desc, const char **help, const char **defaul) {
    if (p->myname)
        *desc = p->myname;
    else if (p->iscreator)
        *desc = "creator";
    else
        *desc = "type";

    if (!p->fc) {
        *defaul = 0;
    } else {
        unsigned long tmp;
        unsigned char *ptr;

        ptr = (unsigned char *) defaultparam;
        tmp = *p->fc;
        ptr[0] = '\'';
        ptr[1] = tmp & 0xFF;
        ptr[2] = (tmp >> 8) & 0xFF;
        ptr[3] = (tmp >> 16) & 0xFF;
        ptr[4] = (tmp >> 24) & 0xFF;
        ptr[5] = '\'';
        ptr[6] = 0;
        *defaul = defaultparam;
    }
}

static int CompareParam_FTypeCreator(FTYPE_T *p) {
    return 0;
}

static int Param_FTypeCreator(FTYPE_T *p, const char *pstr, int flags) {
    char x[4] = "    ";
    int cnt;
    const char *opstr;

    cnt = 0;
    opstr = pstr;
    while (*pstr && cnt < 4) {
        x[cnt++] = *(pstr++);
    }

    if (*pstr) {
        Param_Error(8, opstr);
        return 0;
    }

    inline_write_32(p->fc, &x);
    return 1;
}

static void DescHelpParam_String(STRING_T *p, const char **desc, const char **help, const char **defaul) {
    if (p->myname)
        *desc = p->myname;
    else
        *desc = "string";

    if (!p->str) {
        *help = 0;
        *defaul = 0;
    } else {
        sprintf(helpparam, "maximum length %d chars", p->maxlen - 1);
        *help = helpparam;

        if (*p->str) {
            sprintf(defaultparam, "'%s'", p->str);
            *defaul = defaultparam;
        } else {
            *defaul = "none";
        }
    }
}

static int CompareParam_String(STRING_T *p) {
    return 0;
}

static int Param_String(STRING_T *p, const char *pstr, int flags) {
    int len;

    len = strlen(pstr);
    strncpy(p->str, pstr, p->maxlen - 1);
    if (p->pstring)
        c2pstr(p->str);

    if (len > p->maxlen) {
        Param_Error(9, pstr, pstr + len - 5, p->maxlen - 1);
        return 0;
    }

    return 1;
}

static void DescHelpParam_ID_or_SYM(STRING_T *p, const char **desc, const char **help, const char **defaul) {
    if (p->myname)
        *desc = p->myname;
    else if (p->which == PARAMWHICH_Id)
        *desc = "identifier";
    else
        *desc = "symbol";

    if (!p->str) {
        *help = *defaul = 0;
    } else {
        sprintf(helpparam, "maximum length %d chars", p->maxlen - 1);
        *help = helpparam;

        if (*p->str) {
            sprintf(defaultparam, "'%s'", p->str);
            *defaul = defaultparam;
        } else {
            *defaul = "none";
        }
    }
}

static int CompareParam_ID_or_SYM(STRING_T *p) {
    return 0;
}

static int Param_ID_or_SYM(STRING_T *p, const char *pstr, int flags) {
    const char *ptr;
    const char *x;

    if (Param_String(p, pstr, flags)) {
        if (p->which == PARAMWHICH_Id) {
            x = "$_";
        } else if (p->which == PARAMWHICH_Sym) {
            x = "_.$@?#";
        }

        for (ptr = pstr; *ptr; ++ptr) {
            if (ptr == pstr && my_isdigit(*ptr))
                Param_Warning(10, pstr);

            if (!my_isalnum(*ptr) && !strchr(x, *ptr))
                Param_Warning(11, pstr, *ptr);
        }

        return 1;
    } else {
        return 0;
    }
}

static void DescHelpParam_OnOff(ONOFF_T *p, const char **desc, const char **help, const char **defaul) {
    unsigned char def;

    if (p->myname)
        *desc = p->myname;
    else
        *desc = "on|off";

    *help = 0;
    if (!p->var) {
        *defaul = 0;
    } else {
        if (p->var)
            *((unsigned char *) &def) = *((unsigned char *) p->var);
        if (def)
            *defaul = "on";
        else
            *defaul = "off";
    }
}

static int CompareParam_OnOff(ONOFF_T *p) {
    return 0;
}

static int Param_OnOff(ONOFF_T *p, const char *pstr, int flags) {
    Boolean mytrue = (flags & PARAMPARSEFLAGS_8) == 0;

    if (!ustrcmp(pstr, "on")) {
        *(p->var) = mytrue;
    } else if (!ustrcmp(pstr, "off")) {
        *(p->var) = mytrue == 0;
    } else {
        Param_Error(12, pstr);
        return 0;
    }

    return 1;
}

static void DescHelpParam_OffOn(ONOFF_T *p, const char **desc, const char **help, const char **defaul) {
    unsigned char def;

    if (p->myname)
        *desc = p->myname;
    else
        *desc = "off|on";

    *help = 0;
    if (!p->var) {
        *defaul = 0;
    } else {
        if (p->var)
            *((unsigned char *) &def) = *((unsigned char *) p->var);
        if (!def)
            *defaul = "on";
        else
            *defaul = "off";
    }
}

static int CompareParam_OffOn(OFFON_T *p) {
    return 0;
}

static int Param_OffOn(OFFON_T *p, const char *pstr, int flags) {
    Boolean mytrue = (flags & PARAMPARSEFLAGS_8) == 0;

    if (!ustrcmp(pstr, "off")) {
        *(p->var) = mytrue;
    } else if (!ustrcmp(pstr, "on")) {
        *(p->var) = mytrue == 0;
    } else {
        Param_Error(12, pstr);
        return 0;
    }

    return 1;
}

static void DescHelpParam_FilePath(FILEPATH_T *p, const char **desc, const char **help, const char **defaul) {
    if (p->myname)
        *desc = p->myname;
    else
        *desc = "filepath";

    *help = 0;
    *defaul = p->defaultstr;
}

static int CompareParam_FilePath(FILEPATH_T *p) {
    return 0;
}

static int Param_FilePath(FILEPATH_T *p, const char *pstr, int flags) {
    int err;
    OSSpec spec;
    char canon[256];
    int clen;

    if (!pstr[0]) {
        ((unsigned char *) p->filename)[0] = 0;
        return 1;
    }

    err = OS_MakeFileSpec(pstr, &spec);
    if (err) {
        Param_Error(18, pstr, OS_GetErrText(err));
        return 0;
    }

    OS_SpecToString(&spec, canon, sizeof(canon));
    if (p->fflags & 1) {
        c2pstrcpy(p->filename, canon);
    } else {
        clen = strlen(canon);
        if (clen > p->maxlen) {
            Param_Error(13, canon + clen - 32, canon);
            return 0;
        }
        strcpy(p->filename, canon);
    }

    return 1;
}

static void DescHelpParam_Mask(MASK_T *p, const char **desc, const char **help, const char **defaul) {
    *help = 0;
    *desc = 0;
    *defaul = 0;
}

static int CompareParam_Mask(MASK_T *p) {
    if (p->size == 1) {
        unsigned char or8 = p->ormask, and8 = p->andmask, val8;
        if (p->num) copy_8(&val8, p->num);
        return ((val8 & ~and8) | or8) == val8;
    } else if (p->size == 2) {
        unsigned short or16 = p->ormask, and16 = p->andmask, val16;
        if (p->num) copy_16(&val16, p->num);
        return ((val16 & ~and16) | or16) == val16;
    } else {
        unsigned long or32 = p->ormask, and32 = p->andmask, val32;
        if (p->num) copy_32(&val32, p->num);
        return ((val32 & ~and32) | or32) == val32;
    }
}

static int Param_Mask(MASK_T *p, const char *pstr, int flags) {
    if (p->size == 1) {
        unsigned char or8 = p->ormask, and8 = p->andmask, tmp8;
        if (flags & PARAMPARSEFLAGS_8) {
            tmp8 = and8;
            and8 = and8 | or8;
            or8 = tmp8;
        }
        inline_andor_8(p->num, &and8, &or8);
    } else if (p->size == 2) {
        unsigned short or16 = p->ormask, and16 = p->andmask, tmp16;
        if (flags & PARAMPARSEFLAGS_8) {
            tmp16 = and16;
            and16 = and16 | or16;
            or16 = tmp16;
        }
        inline_andor_16(p->num, &and16, &or16);
    } else {
        unsigned long or32 = p->ormask, and32 = p->andmask, tmp32;
        if (flags & PARAMPARSEFLAGS_8) {
            tmp32 = and32;
            and32 = and32 | or32;
            or32 = tmp32;
        }
        inline_andor_32(p->num, &and32, &or32);
    }
    return 1;
}

static void DescHelpParam_Toggle(TOGGLE_T *p, const char **desc, const char **help, const char **defaul) {
    *help = 0;
    *desc = 0;
    *defaul = 0;
}

static int CompareParam_Toggle(TOGGLE_T *p) {
    if (p->size == 1) {
        unsigned char mask8, val8;
        mask8 = (unsigned char) p->mask;
        if (p->num) copy_8(&val8, p->num);
        return (val8 ^ mask8) == val8;
    } else if (p->size == 2) {
        unsigned short mask16, val16;
        mask16 = (unsigned short) p->mask;
        if (p->num) copy_16(&val16, p->num);
        return (val16 ^ mask16) == val16;
    } else {
        unsigned long mask32, val32;
        mask32 = p->mask;
        if (p->num) copy_16(&val32, p->num); // BUG ALERT
        return (val32 ^ mask32) == val32;
    }
}

static int Param_Toggle(TOGGLE_T *p, const char *pstr, int flags) {
    if (p->size == 1) {
        unsigned char val8;
        val8 = (unsigned char) p->mask;
        inline_xor_8(p->num, &val8);
    } else if (p->size == 2) {
        unsigned short val16;
        val16 = (unsigned short) p->mask;
        inline_xor_16(p->num, &val16);
    } else {
        inline_xor_32(p->num, &p->mask);
    }
    return 1;
}

static void DescHelpParam_Set(SET_T *p, const char **desc, const char **help, const char **defaul) {
    *help = 0;
    *desc = 0;
    *defaul = 0;
}

static int CompareParam_Set(SET_T *p) {
    if (p->size == 1) {
        unsigned char set8, val8;
        set8 = (unsigned char) p->value;
        if (p->num) copy_8(&val8, p->num);
        return set8 == val8;
    } else if (p->size == 2) {
        unsigned short set16, val16;
        set16 = (unsigned short) p->value;
        if (p->num) copy_16(&val16, p->num);
        return set16 == val16;
    } else {
        unsigned long set32, val32;
        set32 = p->value;
        if (p->num) copy_32(&val32, p->num);
        return set32 == val32;
    }
}

static int Param_Set(SET_T *p, const char *pstr, int flags) {
    if (p->size == 1) {
        unsigned char val8;
        val8 = (unsigned char) p->value;
        if ((flags & PARAMPARSEFLAGS_8) && val8 <= 1)
            val8 = (val8 == 0);
        inline_write_8(p->num, &val8);
    } else if (p->size == 2) {
        unsigned short val16;
        val16 = (unsigned short) p->value;
        if ((flags & PARAMPARSEFLAGS_8) && val16 <= 1)
            val16 = (val16 == 0);
        inline_write_16(p->num, &val16);
    } else {
        unsigned long val32;
        val32 = p->value;
        if ((flags & PARAMPARSEFLAGS_8) && val32 <= 1)
            val32 = (val32 == 0);
        inline_write_32(p->num, &val32);
    }
    return 1;
}

static void DescHelpParam_SetString(SETSTRING_T *p, const char **desc, const char **help, const char **defaul) {
    *help = 0;
    *desc = 0;
    *defaul = 0;
}

static int CompareParam_SetString(SETSTRING_T *p, int flags) {
    if (p->pstring)
        return pstrcmp((const unsigned char *) p->var, (const unsigned char *) p->value) == 0;
    else
        return strcmp(p->var, p->value) == 0;
}

static int Param_SetString(SETSTRING_T *p, const char *pstr, int flags) {
    if (p->pstring)
        memcpy(p->var, p->value, p->value[0]);
    else
        strcpy(p->var, p->value);
    return 1;
}

static void DescHelpParam_Generic(GENERIC_T *p, const char **desc, const char **help, const char **defaul) {
    if (p->myname)
        *desc = p->myname;
    else if ((p->flags & PARAMFLAGS_3) != 1)
        *desc = "xxx";
    else
        *desc = 0;
    *help = p->help;
    *defaul = 0;
}

static int CompareParam_Generic(GENERIC_T *p) {
    return 0;
}

static int Param_Generic(GENERIC_T *p, const char *pstr, int flags) {
    return p->parse(curopt, p->var, pstr, flags);
}

static void DescHelpParam_Setting(SETTING_T *p, const char **desc, const char **help, const char **defaul) {
    char *dptr = descparam;

    dptr += sprintf(dptr, "%s", p->myname ? p->myname : "var");
    if ((p->flags & PARAMFLAGS_3) != 1) {
        sprintf(dptr,
                "%s=%s%s",
                (p->flags & PARAMFLAGS_2) ? "[" : "",
                p->valuename ? p->valuename : "...",
                (p->flags & PARAMFLAGS_2) ? "]" : ""
                );
    }
    *desc = descparam;
    *help = 0;
    *defaul = 0;
}

static int CompareParam_Setting(SETTING_T *p) {
    return 0;
}

static int Param_Setting(SETTING_T *p, const char *pstr, int flags) {
    char savevar[256];
    const char *vstr;
    ArgToken *tok;
    Boolean equals = 0;

    if (!pstr) {
        Param_Error(40);
        return 0;
    }

    strncpy(savevar, pstr, sizeof(savevar));
    tok = Arg_PeekToken();
    if (tok && tok->val == ATK_4) {
        Arg_UsedToken();
        equals = 1;
        if (!Param_GetArgument((PARAM_T *) p, &vstr, flags))
            return 0;
    } else {
        vstr = 0;
    }

    if (!vstr && equals)
        vstr = "";

    return p->parse(savevar, vstr);
}

static void DescHelpParam_IfArg(IFARG_T *p, const char **desc, const char **help, const char **defaul) {
    const char *d1 = 0;
    const char *d2 = 0;
    const char *h1 = 0;
    const char *h2 = 0;
    const char *df1 = 0;
    const char *df2 = 0;
    char desclocal[1024];
    char *dptr = desclocal;
    char helplocal[1024];
    char *hptr = helplocal;
    const char *ind;

    desclocal[0] = 0;
    helplocal[0] = 0;

    if (p->parg)
        Param_DescHelp(p->parg, &d1, &h1, &df1);
    if (p->pnone)
        Param_DescHelp(p->pnone, &d2, &h2, &df2);

    if (p->helpa && p->helpn) {
        if (df1)
            hptr += sprintf(hptr, "%s (default is %s), else %s", p->helpa, df1, p->helpn);
        else
            hptr += sprintf(hptr, "%s, else %s", p->helpa, p->helpn);
    } else if (p->helpa) {
        hptr += sprintf(hptr, "%s", p->helpa);
        if (df1)
            hptr += sprintf(hptr, "; default is %s", df1);
    } else if (p->helpn) {
        hptr += sprintf(hptr, "nothing, else %s", p->helpn);
    }

    if (d1) {
        if (p->myname) {
            dptr += sprintf(dptr, "[%s]", p->myname ? p->myname: "param");
        } else if (h1) {
            ind = strchr(d1, '\n');
            if (!ind)
                ind = d1 + strlen(d1);
            dptr += sprintf(dptr, "[%.*s]", ind - d1, d1);
        } else {
            dptr += sprintf(dptr, "[%s]", d1);
            d1 = 0;
        }
    }

    if (h1 || h2) {
        dptr += sprintf(dptr, "\n\t");
        hptr += sprintf(hptr, "\n\t");
        if (h1) {
            if (d1)
                dptr += sprintf(dptr, "%s", d1);
            if (h1)
                hptr += sprintf(hptr, "%s", h1);
            if (h2) {
                dptr += sprintf(dptr, "\b\t");
                hptr += sprintf(hptr, "\b\t");
            }
        }
        if (h2) {
            if (d2)
                dptr += sprintf(dptr, "%s", d2);
            else
                dptr += sprintf(dptr, "(if blank)");
            if (h2)
                hptr += sprintf(hptr, "%s", h2);
            dptr += sprintf(dptr, "\n");
            hptr += sprintf(hptr, "\n");
        }
        dptr += sprintf(dptr, "\b");
        hptr += sprintf(hptr, "\b");
    }

    if (dptr != desclocal) {
        strcpy(descparam, desclocal);
        *desc = descparam;
    } else {
        *desc = 0;
    }

    if (hptr != helplocal) {
        strcpy(helpparam, helplocal);
        *help = helpparam;
    } else {
        *help = 0;
    }

    *defaul = 0;
}

static int CompareParam_IfArg(IFARG_T *p) {
    return 0;
}

static int Param_IfArg(IFARG_T *p, const char *pstr, int flags) {
    if (pstr)
        return Param_Parse(p->parg, pstr, flags);
    else if (p->pnone)
        return Param_Parse(p->pnone, pstr, flags);
    else
        return 1;
}

typedef int (*PARSE_FUNC)(PARAM_T *, const char *, int);
PARSE_FUNC ParamParsers[16] = {
        (PARSE_FUNC) &Param_None,
        (PARSE_FUNC) &Param_FTypeCreator,
        (PARSE_FUNC) &Param_FilePath,
        (PARSE_FUNC) &Param_Number,
        (PARSE_FUNC) &Param_String,
        (PARSE_FUNC) &Param_ID_or_SYM,
        (PARSE_FUNC) &Param_ID_or_SYM,
        (PARSE_FUNC) &Param_OnOff,
        (PARSE_FUNC) &Param_OffOn,
        (PARSE_FUNC) &Param_Mask,
        (PARSE_FUNC) &Param_Toggle,
        (PARSE_FUNC) &Param_Set,
        (PARSE_FUNC) &Param_SetString,
        (PARSE_FUNC) &Param_Generic,
        (PARSE_FUNC) &Param_IfArg,
        (PARSE_FUNC) &Param_Setting
};

static int Param_Parse(PARAM_T *param, const char *cparam, int flags) {
    if (!param)
        CLPFatalError("PARAM_T is NULL");

    if (param->which >= PARAMWHICH_None && param->which < PARAMWHICH_MAX) {
        return ParamParsers[param->which](param, cparam, flags);
    } else {
        CLPFatalError("Unhandled PARAM_T (%d)", param->which);
        return 0;
    }
}

typedef void (*DESC_HELP_FUNC)(PARAM_T *, const char **, const char **, const char **);
DESC_HELP_FUNC DescHelpParams[16] = {
        (DESC_HELP_FUNC) &DescHelpParam_None,
        (DESC_HELP_FUNC) &DescHelpParam_FTypeCreator,
        (DESC_HELP_FUNC) &DescHelpParam_FilePath,
        (DESC_HELP_FUNC) &DescHelpParam_Number,
        (DESC_HELP_FUNC) &DescHelpParam_String,
        (DESC_HELP_FUNC) &DescHelpParam_ID_or_SYM,
        (DESC_HELP_FUNC) &DescHelpParam_ID_or_SYM,
        (DESC_HELP_FUNC) &DescHelpParam_OnOff,
        (DESC_HELP_FUNC) &DescHelpParam_OffOn,
        (DESC_HELP_FUNC) &DescHelpParam_Mask,
        (DESC_HELP_FUNC) &DescHelpParam_Toggle,
        (DESC_HELP_FUNC) &DescHelpParam_Set,
        (DESC_HELP_FUNC) &DescHelpParam_SetString,
        (DESC_HELP_FUNC) &DescHelpParam_Generic,
        (DESC_HELP_FUNC) &DescHelpParam_IfArg,
        (DESC_HELP_FUNC) &DescHelpParam_Setting
};
void Param_DescHelp(PARAM_T *param, const char **desc, const char **help, const char **defaul) {
    *desc = 0;
    *help = 0;
    *defaul = 0;

    if (!param) {
        CLPFatalError("PARAM_T is NULL");
        return;
    }

    if (param->which >= PARAMWHICH_None && param->which < PARAMWHICH_MAX) {
        DescHelpParams[param->which](param, desc, help, defaul);
    } else {
        CLPFatalError("Unhandled PARAM_T (%d)", param->which);
    }
}

typedef int (*COMPARE_FUNC)(PARAM_T *);
COMPARE_FUNC CompareParams[16] = {
        (COMPARE_FUNC) &CompareParam_None,
        (COMPARE_FUNC) &CompareParam_FTypeCreator,
        (COMPARE_FUNC) &CompareParam_FilePath,
        (COMPARE_FUNC) &CompareParam_Number,
        (COMPARE_FUNC) &CompareParam_String,
        (COMPARE_FUNC) &CompareParam_ID_or_SYM,
        (COMPARE_FUNC) &CompareParam_ID_or_SYM,
        (COMPARE_FUNC) &CompareParam_OnOff,
        (COMPARE_FUNC) &CompareParam_OffOn,
        (COMPARE_FUNC) &CompareParam_Mask,
        (COMPARE_FUNC) &CompareParam_Toggle,
        (COMPARE_FUNC) &CompareParam_Set,
        (COMPARE_FUNC) &CompareParam_SetString,
        (COMPARE_FUNC) &CompareParam_Generic,
        (COMPARE_FUNC) &CompareParam_IfArg,
        (COMPARE_FUNC) &CompareParam_Setting
};
int Param_Compare(PARAM_T *param) {
    if (!param)
        CLPFatalError("PARAM_T is NULL");

    if (param->which >= PARAMWHICH_None && param->which < PARAMWHICH_MAX) {
        return CompareParams[param->which](param);
    } else {
        CLPFatalError("Unhandled PARAM_T (%d)", param->which);
        return 0;
    }
}

static void Param_PushParam(const char *param) {
    Args_Push(4, (void *) param, 0);
}

static void Param_PopParam() {
    Args_Pop(4);
}

static Boolean Param_IsNonTextFile(const char *fname, Boolean warn) {
    OSSpec tmp;
    CWDataType mactype;
    Boolean isfile;

    if (!OS_MakeSpec(fname, &tmp, &isfile)) {
        if (isfile) {
            if (!OS_Status(&tmp)) {
                if (!OS_GetMacFileType(&tmp, &mactype)) {
                    if (mactype != 'TEXT') {
                        if (warn)
                            Param_Warning(77, fname);
                        return 1;
                    }
                }
            }
        }
    }

    return 0;
}

static int Param_GetArgument(PARAM_T *param, const char **cparam, int exec) {
    int subparse;
    short nextOpt;
    short nextParam;
    short lastOpt;
    ArgToken *tok;

    subparse = (exec & PARAMPARSEFLAGS_4) != 0;
    nextOpt = !subparse ? ATK_1 : ATK_5;
    nextParam = !subparse ? ATK_5 : ATK_4;
    lastOpt = !subparse ? ATK_0 : ATK_1;

    tok = Arg_PeekToken();
#line 1467
    OPTION_ASSERT(tok);

    if ((param->flags & PARAMFLAGS_3) == 0) {
        if (tok->val == nextParam || tok->val == ATK_4)
            tok = Arg_UsedToken();
        if (tok->val == nextOpt || tok->val == nextParam || tok->val == lastOpt) {
            Param_Error(34);
            return 0;
        }
        if (tok->val != ATK_2) {
            Param_Error(57, "parameter", Arg_GetTokenName(tok));
            return 0;
        }
        Arg_GetTokenText(tok, curparam, sizeof(curparam), 1);
        Arg_UsedToken();
        *cparam = curparam;

        if (param->flags & PARAMFLAGS_8) {
            tok = Arg_PeekToken();
            if (tok->val == ATK_4)
                Arg_UsedToken();
        }
    } else if (param->flags & PARAMFLAGS_1) {
        *cparam = 0;
        if (tok->val == ATK_4 && !subparse) {
            if (!(exec & PARAMPARSEFLAGS_40)) {
                Param_Error(37);
                return 0;
            }
            Arg_UsedToken();
        }
    } else if (param->flags & PARAMFLAGS_2) {
        if (tok->val == nextOpt || tok->val == lastOpt) {
            *cparam = 0;
        } else if (tok->val == nextParam) {
            tok = Arg_UsedToken();
            if (tok->val == ATK_2) {
                Arg_GetTokenText(tok, curparam, sizeof(curparam), 1);
                if ((param->flags & PARAMFLAGS_12) && Param_IsNonTextFile(curparam, !(exec & PARAMPARSEFLAGS_1))) {
                    *cparam = 0;
                } else {
                    Arg_UsedToken();
                    *cparam = curparam;
                }
            } else {
                *cparam = 0;
            }
        } else if (tok->val == ATK_2 && !tok->text[0]) {
            tok = Arg_UsedToken();
            if (tok->val == nextParam)
                Arg_UsedToken();
            *cparam = 0;
        } else if ((exec & PARAMPARSEFLAGS_4) && tok->val != ATK_4) {
            *cparam = 0;
        } else {
            if (tok->val == ATK_4)
                tok = Arg_UsedToken();
            if (tok->val == ATK_2) {
                Arg_GetTokenText(tok, curparam, sizeof(curparam), 1);
                if ((param->flags & PARAMFLAGS_12) && Param_IsNonTextFile(curparam, !(exec & PARAMPARSEFLAGS_1))) {
                    *cparam = 0;
                } else {
                    Arg_UsedToken();
                    *cparam = curparam;
                }
            } else {
                *cparam = 0;
            }
        }
    } else {
        CLPFatalError("Unknown parameter type");
    }

    if (pTool->TYPE == CWDROPINCOMPILERTYPE && (exec & PARAMPARSEFLAGS_2) && *cparam) {
        if (!(exec & PARAMPARSEFLAGS_10)) {
            if (subparse)
                Arg_AddToToolArgs(&linkargs, ATK_4, 0);
            else
                Arg_AddToToolArgs(&linkargs, ATK_5, 0);
        }
        Param_PushParam(*cparam);
        Args_AddToToolArgs(&linkargs);
        Param_PopParam();
    }

    return 1;
}

int Params_Parse(PARAM_T *param, int flags) {
    const char *cparam;
    flags |= PARAMPARSEFLAGS_10;

    if (param) {
        while (param) {
            if (flags & PARAMPARSEFLAGS_20)
                flags |= PARAMPARSEFLAGS_40;

            if (!Param_GetArgument(param, &cparam, flags))
                return 0;

            if (!(flags & PARAMPARSEFLAGS_1)) {
                if (!Param_Parse(param, cparam, flags | (short) ((param->flags & PARAMFLAGS_4) ? PARAMPARSEFLAGS_20 : 0)))
                    return 0;
            } else if (param->flags & PARAMFLAGS_4) {
                if (!Param_GetArgument(param, &cparam, flags | PARAMPARSEFLAGS_4))
                    return 0;
            }

            if (cparam)
                flags &= ~PARAMPARSEFLAGS_10;
            flags &= ~PARAMPARSEFLAGS_40;
            param = param->next;
        }
    }

    return 1;
}

void Param_Error(short id, ...) {
    va_list va;
    va_start(va, id);
    Option_ParamError(id, va);
    va_end(va);
}

void Param_Warning(short id, ...) {
    va_list va;
    va_start(va, id);
    Option_ParamWarning(id, va);
    va_end(va);
}