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added is_number(), is_list() and is_string() functions

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git-svn-id: https://svn.code.sf.net/p/acme-crossass/code-0/trunk@248 4df02467-bbd4-4a76-a152-e7ce94205b78
This commit is contained in:
marcobaye 2020-06-21 15:25:37 +00:00
parent ceabdfb4a0
commit b8679e7f06
1 changed files with 79 additions and 26 deletions
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105
src/alu.c
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@ -71,6 +71,10 @@ enum op_id {
OPID_ARCCOS, // arccos(v)
OPID_ARCTAN, // arctan(v)
OPID_LEN, // len(v)
OPID_ISNUMBER, // is_number(v)
OPID_ISLIST, // is_list(v)
OPID_ISSTRING, // is_string(v)
// add CHR function to create 1-byte string? or rather add \xAB escape sequence?
// dyadic operators:
OPID_POWEROF, // v^w
OPID_MULTIPLY, // v*w
@ -155,6 +159,9 @@ static struct op ops_arcsin = {42, OPGROUP_MONADIC, OPID_ARCSIN, "arcsin()" };
static struct op ops_arccos = {42, OPGROUP_MONADIC, OPID_ARCCOS, "arccos()" };
static struct op ops_arctan = {42, OPGROUP_MONADIC, OPID_ARCTAN, "arctan()" };
static struct op ops_len = {42, OPGROUP_MONADIC, OPID_LEN, "len()" };
static struct op ops_isnumber = {42, OPGROUP_MONADIC, OPID_ISNUMBER, "is_number()" };
static struct op ops_islist = {42, OPGROUP_MONADIC, OPID_ISLIST, "is_list()" };
static struct op ops_isstring = {42, OPGROUP_MONADIC, OPID_ISSTRING, "is_string()" };
// variables
@ -199,6 +206,9 @@ static struct ronode function_list[] = {
PREDEFNODE("int", &ops_int),
PREDEFNODE("float", &ops_float),
PREDEFNODE("len", &ops_len),
PREDEFNODE("is_number", &ops_isnumber),
PREDEFNODE("is_list", &ops_islist),
PREDEFNODE("is_string", &ops_isstring),
PREDEFNODE("arcsin", &ops_arcsin),
PREDEFNODE("arccos", &ops_arccos),
PREDEFNODE("arctan", &ops_arctan),
@ -1444,9 +1454,6 @@ static void warn_float_to_int(void)
static void undef_handle_monadic_operator(struct object *self, const struct op *op)
{
switch (op->id) {
case OPID_ADDRESS:
self->u.number.addr_refs = 1; // result now is an address
break;
case OPID_INT:
case OPID_FLOAT:
self->u.number.addr_refs = 0;
@ -1490,9 +1497,6 @@ static void int_handle_monadic_operator(struct object *self, const struct op *op
int refs = 0; // default for "addr_refs", shortens this fn
switch (op->id) {
case OPID_ADDRESS:
refs = 1; // result now is an address
break;
case OPID_INT:
break;
case OPID_FLOAT:
@ -1563,9 +1567,6 @@ static void float_handle_monadic_operator(struct object *self, const struct op *
int refs = 0; // default for "addr_refs", shortens this fn
switch (op->id) {
case OPID_ADDRESS:
refs = 1; // result now is an address
break;
case OPID_INT:
float_to_int(self);
break;
@ -1622,6 +1623,25 @@ static void float_handle_monadic_operator(struct object *self, const struct op *
// handle monadic operator (includes functions)
static void number_handle_monadic_operator(struct object *self, const struct op *op)
{
// first check operators where we don't care about number type or value
switch (op->id) {
case OPID_ADDRESS:
self->u.number.addr_refs = 1; // result now is an address
return;
case OPID_ISNUMBER:
int_create_byte(self, TRUE);
return;
case OPID_ISLIST:
case OPID_ISSTRING:
int_create_byte(self, FALSE);
return;
default:
break;
}
// it's none of those, so split according to number type
switch (self->u.number.ntype) {
case NUMTYPE_UNDEFINED:
undef_handle_monadic_operator(self, op);
@ -1643,7 +1663,8 @@ static void list_handle_monadic_operator(struct object *self, const struct op *o
{
int length;
if (op->id == OPID_LEN) {
switch (op->id) {
case OPID_LEN:
length = self->u.listhead->u.listinfo.length;
self->u.listhead->u.listinfo.refs--; // FIXME - call some list_decrement_refs() instead...
self->type = &type_number;
@ -1651,7 +1672,15 @@ static void list_handle_monadic_operator(struct object *self, const struct op *o
self->u.number.flags = 0;
self->u.number.val.intval = length;
self->u.number.addr_refs = 0;
} else {
break;
case OPID_ISLIST:
int_create_byte(self, TRUE);
break;
case OPID_ISNUMBER:
case OPID_ISSTRING:
int_create_byte(self, FALSE);
break;
default:
unsupported_operation(NULL, op, self);
}
}
@ -1662,7 +1691,8 @@ static void string_handle_monadic_operator(struct object *self, const struct op
{
int length;
if (op->id == OPID_LEN) {
switch (op->id) {
case OPID_LEN:
length = self->u.string->length;
self->u.string->refs--; // FIXME - call some string_decrement_refs() instead...
self->type = &type_number;
@ -1670,7 +1700,15 @@ static void string_handle_monadic_operator(struct object *self, const struct op
self->u.number.flags = 0;
self->u.number.val.intval = length;
self->u.number.addr_refs = 0;
} else {
break;
case OPID_ISNUMBER:
case OPID_ISLIST:
int_create_byte(self, FALSE);
break;
case OPID_ISSTRING:
int_create_byte(self, TRUE);
break;
default:
unsupported_operation(NULL, op, self);
}
}
@ -2105,10 +2143,11 @@ static void list_handle_dyadic_operator(struct object *self, const struct op *op
case OPID_LIST_APPEND:
list_append_object(self->u.listhead, other);
// no need to check/update ref count of "other": it loses the ref on the stack and gains one in the list
break;
return;
case OPID_ATINDEX:
if (get_valid_index(&index, length, self, op, other))
return; // error
return; // error has been thrown
item = self->u.listhead->next;
while (index) {
@ -2117,12 +2156,11 @@ static void list_handle_dyadic_operator(struct object *self, const struct op *op
}
self->u.listhead->u.listinfo.refs--; // FIXME - call some fn for this (and do _after_ next line)
*self = item->u.payload; // FIXME - if item is a list, it would gain a ref by this...
break;
return;
case OPID_ADD:
if (other->type != &type_list) {
unsupported_operation(self, op, other);
return; // error
}
if (other->type != &type_list)
break; // complain
item = self->u.listhead; // get ref to first list
list_init_list(self); // replace first list on arg stack with new one
list_append_list(self->u.listhead, item);
@ -2131,10 +2169,26 @@ static void list_handle_dyadic_operator(struct object *self, const struct op *op
list_append_list(self->u.listhead, item);
item->u.listinfo.refs--; // FIXME - call a function for this...
return;
case OPID_EQUALS:
if (other->type != &type_list)
break; // complain FIXME - return FALSE?
int_create_byte(self, !list_differs(self, other));
// FIXME - call function to decrement refs!
return;
case OPID_NOTEQUAL:
if (other->type != &type_list)
break; // complain FIXME - return TRUE?
int_create_byte(self, list_differs(self, other));
// FIXME - call function to decrement refs!
return;
//case ...: // maybe comparisons?
default:
unsupported_operation(self, op, other);
break; // complain
}
unsupported_operation(self, op, other);
}
// string:
@ -2172,7 +2226,7 @@ static void string_handle_dyadic_operator(struct object *self, const struct op *
case OPID_EQUALS:
if (other->type != &type_string)
break; // complain
break; // complain FIXME - return FALSE?
arthur = self->u.string;
ford = other->u.string;
int_create_byte(self, !string_differs(self, other));
@ -2182,7 +2236,7 @@ static void string_handle_dyadic_operator(struct object *self, const struct op *
case OPID_NOTEQUAL:
if (other->type != &type_string)
break; // complain
break; // complain FIXME - return TRUE?
arthur = self->u.string;
ford = other->u.string;
int_create_byte(self, string_differs(self, other));
@ -2485,8 +2539,7 @@ void ALU_addrmode_int(struct expression *expression, int paren) // ACCEPT_UNDEFI
float_to_int(&(expression->result));
// FIXME - check for undefined?
} else {
Throw_error(exception_not_number);
// FIXME - accept and encode strings if length is 1?
Throw_error(exception_not_number); // FIXME - accept and encode strings if length is 1! but throw a warning?
}
if (expression->open_parentheses > paren) {
expression->open_parentheses = 0;