/*
* return a set that is the union of lhs and rhs
*/
wycc_obj* wyil_set_union(wycc_obj* lhs, wycc_obj* rhs){
WY_OBJ_SANE(lhs, "wyil_set_union lhs");
WY_OBJ_SANE(rhs, "wyil_set_union rhs");
wycc_obj* ans;
struct chunk_ptr lhs_chunk_ptr;
struct chunk_ptr *lptr = & lhs_chunk_ptr;
struct chunk_ptr rhs_chunk_ptr;
struct chunk_ptr *rptr = & rhs_chunk_ptr;
wycc_obj *litm;
wycc_obj *ritm;
int end;
/* **** Tuple? */
if ((lhs->typ == Wy_List) || (rhs->typ == Wy_List)) {
return wyil_set_union_list(lhs, rhs);
}
if (lhs->typ != Wy_Set) {
WY_PANIC("Help needed in wyil_set_union for type %d\n", lhs->typ)
};
if (rhs->typ != Wy_Set) {
WY_PANIC("Help needed in wyil_set_union for type %d\n", rhs->typ)
};
ans = wycc_set_new(-1);
wycc_chunk_ptr_fill(lptr, lhs, 0); /* 0 == this is a set */
wycc_chunk_ptr_fill(rptr, rhs, 0);
wycc_chunk_ptr_inc(lptr);
wycc_chunk_ptr_inc(rptr);
while (1) {
litm = lptr->key;
ritm = rptr->key;
if ((litm == NULL) && (ritm == NULL)) {
return ans;
};
if (litm == NULL) {
end = 1;
} else if (ritm == NULL) {
end = -1;
} else {
end = wycc_comp_gen(litm, ritm);
};
if (end == 0) {
wycc_set_add(ans, litm);
wycc_chunk_ptr_inc(lptr);
wycc_chunk_ptr_inc(rptr);
continue;
};
if (end < 0) {
wycc_set_add(ans, litm);
wycc_chunk_ptr_inc(lptr);
} else {
wycc_set_add(ans, ritm);
wycc_chunk_ptr_inc(rptr);
};
};
}
/*
* given an object that addresses a FILE, close the file.
*/
void wycc__close(wycc_obj *itm) {
WY_OBJ_SANE(itm, "wycc__close");
FILE *fil;
int sts;
if (itm->typ != Wy_Addr) {
WY_PANIC("Help needed in wycc__close for type %d\n", itm->typ)
};
fil = (FILE *) itm->ptr;
sts = fclose(fil);
if (sts != 0) {
WY_PANIC("Failed to close file\n")
};
}
/*
* given a string open a file of that name, to use for reading
*/
wycc_obj *wycc__Reader(wycc_obj *fnam) {
WY_OBJ_SANE(fnam, "wycc__Reader");
wycc_obj* ans = NULL;
FILE *fil;
if ((fnam->typ != Wy_String) && (fnam->typ != Wy_CString)) {
WY_PANIC("Help needed in wycc__Reader for type %d\n", fnam->typ)
};
fil = fopen(fnam->ptr, "r");
if (fil == NULL) {
WY_PANIC("Failed to open '%s' for reading\n", fnam->ptr)
};
ans = wycc_box_new(Wy_Addr, fil);
return ans;
}
/*
* given a char, return a bool
* set to true iff the char is between '0' & '9' inclusive
*/
wycc_obj* wycc__isDigit(wycc_obj* itm) {
WY_OBJ_SANE(itm, "wycc__isDigit");
long val;
int ans;
val = -1;
if (itm->typ == Wy_Int) {
val = (long) itm->ptr;
} else if (itm->typ == Wy_Char) {
val = (long) itm->ptr;
} else if (itm->typ == Wy_Byte) {
val = (long) itm->ptr;
} else {
WY_PANIC("Help needed in wycc__isLetter for type %d\n"
, itm->typ);
exit(-3);
};
if (val < 0) {
return wycc_box_bool(0);
};
ans = 1;
if (val < '0') {
ans = 0;
} else if (val > '9') {
ans = 0;
};
return wycc_box_bool(ans);
}
/*
* given a char, return a bool
* set to true iff the char is space, tab, newline, return
* fails to check for formfeed (\f), vertical tab (\v)
*/
wycc_obj* wycc__isWhiteSpace(wycc_obj* itm) {
WY_OBJ_SANE(itm, "wycc__isWhiteSpace");
int ans;
long val;
val = -1;
if (itm->typ == Wy_Int) {
val = (long) itm->ptr;
} else if (itm->typ == Wy_Char) {
val = (long) itm->ptr;
} else if (itm->typ == Wy_Byte) {
val = (long) itm->ptr;
} else {
WY_PANIC("Help needed in wycc__isWhiteSpace for type %d\n"
, itm->typ);
exit(-3);
};
ans = 0;
if (val == ' ') {
ans = 1;
} else if (val == '\t') {
ans = 1;
} else if (val == '\n') {
ans = 1;
} else if (val == '\r') {
ans = 1;
};
return wycc_box_bool(ans);
}
/*
* given an object that addresses a FILE, and a max count,
* get a list of characters
*/
void wycc__write(wycc_obj *itm, wycc_obj *lst) {
WY_OBJ_SANE(itm, "wycc__write itm");
WY_OBJ_SANE(itm, "wycc__write lst");
FILE *fil;
size_t siz;
char chr;
long tmp;
long cnt = 0;
wycc_obj *alt;
wycc_obj *mbr;
wycc_obj *iter;
if (itm->typ != Wy_Addr) {
WY_PANIC("Help needed in wycc__write for type %d\n", itm->typ)
};
fil = (FILE *) itm->ptr;
iter = wycc_iter_new(lst);
while (mbr = wycc_iter_next(iter)) {
if (mbr->typ == Wy_Byte) {
siz = fwrite((void *) &(mbr->ptr), 1, 1, fil);
} else {
alt = wycc__toString(mbr);
fprintf(fil, "%s", (const char *) alt->ptr);
wycc_deref_box(alt, 0);
};
wycc_deref_box(mbr, 0);
}
wycc_deref_box(iter, 0);
}
/*
* create a list that combines two lists
*/
wycc_obj* wyil_list_sub(wycc_obj* lst, wycc_obj* lhs, wycc_obj* rhs){
WY_OBJ_SANE(lst, "wyil_list_sub lst");
WY_OBJ_SANE(lhs, "wyil_list_sub lhs");
WY_OBJ_SANE(rhs, "wyil_list_sub rhs");
if (lst->typ != Wy_List) {
WY_PANIC("ERROR: list in wyil_list_sub is type %d\n", lst->typ)
};
if (lhs->typ != Wy_Int) {
WY_PANIC("ERROR: low in wyil_list_sub is type %d\n", lhs->typ)
};
if (rhs->typ != Wy_Int) {
WY_PANIC("ERROR: hi in wyil_list_sub is type %d\n", rhs->typ)
};
return wycc_list_slice(lst, (int) lhs->ptr, (int) rhs->ptr);
}
/*
* given an object, return one with absolute value.
*/
wycc_obj* wycc__isqrt(wycc_obj* itm) {
WY_OBJ_SANE(itm, "wycc__isqrt");
if (itm->typ == Wy_Int) {
return wycc__isqrt_int(itm);
};
WY_PANIC("Help needed in wycc__isqrt for type %d\n", itm->typ);
exit(-3);
}
/*
* given a pair of object, return the smaller value.
*/
wycc_obj* wycc__min(wycc_obj* lhs, wycc_obj* rhs) {
WY_OBJ_SANE(lhs, "wycc__min lhs");
WY_OBJ_SANE(rhs, "wycc__min rhs");
if ((lhs->typ == Wy_Int) && (rhs->typ == Wy_Int)) {
return wycc__min_int(lhs, rhs);
};
WY_PANIC("Help needed in wycc__min for types %d:%d\n"
, lhs->typ, rhs->typ);
exit(-3);
}
/*
* given an object that addresses a FILE, and a max count,
* get a list of characters
*/
static wycc_obj* my_read(wycc_obj *itm, int max) {
WY_OBJ_SANE(itm, "my_read");
FILE *fil;
size_t siz;
char chr;
long tmp;
long cnt = 0;
wycc_obj *mbr;
wycc_obj *lst;
if (itm->typ != Wy_Addr) {
WY_PANIC("Help needed in my_read for type %d\n", itm->typ)
};
fil = (FILE *) itm->ptr;
lst = wycc_list_new(10);
while (feof(fil) == 0) { /* could be skipped */
siz = fread(&chr, 1, 1, fil);
if (siz != 1) {
if (feof(fil)) {
break;
};
WY_PANIC("Failed to read byte from file\n")
};
tmp = (long) chr;
mbr = wycc_box_new(Wy_Char, (void *) tmp);
wycc_list_add(lst, mbr);
cnt++;
if (cnt == max) {
break;
};
}
return lst;
}
/*
* given an object that addresses a FILE, get a list of characters
*/
wycc_obj* wycc__read_max(wycc_obj *itm, wycc_obj *max) {
WY_OBJ_SANE(itm, "wycc__read_max itm");
WY_OBJ_SANE(max, "wycc__read_max max");
if (max->typ == Wy_Int) {
return my_read(itm, (int) max->ptr);
};
if (max->typ == Wy_WInt) {
return my_read(itm, 0); // too big to matter
};
WY_PANIC("Help needed in wycc__read_max for type %d\n", max->typ)
}
/*
* given a int, byte, or char, return an int with the same value.
*/
wycc_obj* wycc__toUnsignedInt(wycc_obj* itm) {
WY_OBJ_SANE(itm, "wycc__toUnsignedInt");
long val;
if (itm->typ == Wy_Int) {
val = (long) itm->ptr;
} else if (itm->typ == Wy_Char) {
val = (long) itm->ptr;
} else if (itm->typ == Wy_Byte) {
val = (long) itm->ptr;
} else {
WY_PANIC("Help needed in wycc__toUnsignedByte for type %d\n"
, itm->typ);
exit(-3);
};
return wycc_box_long(val);
}
/*
* given a int, byte, or char, return a bool.
* true if the code is for lower case ASCII letter.
*/
wycc_obj* wycc__isLowerCase(wycc_obj* itm) {
WY_OBJ_SANE(itm, "wycc__isLowerCase");
long val;
int ans;
val = -1;
if (itm->typ == Wy_Int) {
val = (long) itm->ptr;
} else if (itm->typ == Wy_Char) {
val = (long) itm->ptr;
} else if (itm->typ == Wy_Byte) {
val = (long) itm->ptr;
} else {
WY_PANIC("Help needed in wycc__isLowerCase for type %d\n"
, itm->typ);
exit(-3);
};
ans = 0;
if ((val >= 'a') && (val <= 'z')) {
ans = 1;
};
return wycc_box_bool(ans);
}
/*
* return a string extracted from the given string
*/
wycc_obj* wyil_substring(wycc_obj* str, wycc_obj* loo, wycc_obj* hio){
WY_OBJ_SANE(str, "wyil_substrin str");
WY_OBJ_SANE(loo, "wyil_substrin loo");
WY_OBJ_SANE(hio, "wyil_substrin hio");
wycc_obj* ans;
size_t siz;
long lo, hi, max;
char *buf;
char *sptr;
if ((str->typ != Wy_String) && (str->typ != Wy_CString)) {
WY_PANIC("Help needed in wyil_substring for type %d\n", str->typ)
};
if (loo->typ != Wy_Int) {
WY_PANIC("Help needed in wyil_substring for type %d\n", loo->typ)
};
if (hio->typ != Wy_Int) {
WY_PANIC("Help needed in wyil_substring for type %d\n", hio->typ)
};
lo = (long) loo->ptr;
hi = (long) hio->ptr;
if (lo > hi) {
WY_PANIC("Help needed in wyil_substring for limits %d:%d\n", lo, hi)
};
siz = hi - lo;
sptr = (char *) str->ptr;
max = strlen(sptr);
if (hi > max) {
WY_PANIC("Help needed in wyil_substring for max %d:%d\n", hi, max)
};
if (lo < 0) {
WY_PANIC("Help needed in wyil_substring for min %d\n", lo)
};
buf = (char *) malloc(siz + 3);
if (siz > 0) {
strncpy(buf, (sptr+lo), siz);
}
buf[siz] = 0;
return wycc_box_str(buf);
}