int main(int argc, char* argv[]){
//print_enum_info();
dprintf("HELLO\n");
create_var("x", INTE, NOSTYPE, "Asldkfj");
create_var("x", INTE, NOSTYPE, "Asldkfj");
//create_var("CDAB", INT, NOSTYPE, "A");
//create_var("BCDA", INT, NOSTYPE, "A");
//create_var("ABCD", INT, NOSTYPE, "GLOBAL");
}
/* public: variable access (set) function */
int eval_set_var(const char *name, double value)
{
VarFn *var;
if(G_varfn_table == NULL)
{ /* allocate the var table */
G_varfn_table = ht_create(500, vhash, vcomp, NULL, vdel);
if(G_varfn_table == NULL)
return 1;
}
/* find named var, update value or insert var/value */
if(ht_lookup(G_varfn_table, name, (void*)&var))
{ /* not found, insert new variable */
var = create_var(name, value);
if(var == NULL)
return 2;
if(ht_insert(G_varfn_table, (void*)(var->name), (void*)var))
return 3;
G_var_count++;
}else if(var->fn != NULL)
return 4;
else
var->value = value;
return 0;
}
int my_set(t_cmd *cmd, t_shell *shell)
{
t_cmd *tmp;
t_env *exist;
tmp = cmd->next->next;
while (tmp != cmd)
{
if (verif_var(tmp))
{
if ((exist = already_exist_var(tmp, shell->var))
&& update_var(tmp, exist) == -1)
return (-1);
else if (!exist)
if (create_var(tmp, shell->var) == -1)
return (-1);
}
else
{
ft_putstr_fd("Var should begin with a letter\n", 2);
return (0);
}
tmp = tmp->next;
}
if (cmd->next->next == cmd)
aff_var(shell->var);
return (1);
}
VAR * get_var (const char * var_name)
{
VAR * v = find_var(var_name);
if (v)
return v;
else
{
return create_var(var_name);
}
}
/* Create a new global var if necessary, and set it up correctly.
* Do not take environment into account.
*/
static Var *
find_global_var_without_env(const char *name, const char *ename, uint32_t k)
{
unsigned int slot;
Var *v;
slot = ohash_lookup_interval(&global_variables, name, ename, k);
v = ohash_find(&global_variables, slot);
if (v == NULL) {
v = create_var(name, ename);
v->flags = VAR_DUMMY;
ohash_insert(&global_variables, slot, v);
}
return v;
}
static struct var evaluate(
struct block *block,
enum optype op,
const struct typetree *t, ...)
{
va_list args;
struct op ir = {0};
ir.type = op;
ir.a = create_var(t);
ir.a.lvalue = 0;
va_start(args, t);
ir.b = va_arg(args, struct var);
if (NOPERANDS(op) == 2) {
ir.c = va_arg(args, struct var);
}
Node* create_node(int type) {
Node* node = malloc(sizeof(Node));
node->type = type;
if (type == NOMBRE)
node->val = atof(yytext);
if (type == VARIABLE) {
node->var = search_var(yytext);
if (node->var == NULL)
{
node->var = create_var((char*)_strdup(yytext));
push_var(node->var);
}
}
return node;
}
static struct block *postfix_expression(struct block *block)
{
struct var root;
block = primary_expression(block);
root = block->expr;
while (1) {
const struct member *field;
const struct typetree *type;
struct var expr, copy, *arg;
struct token tok;
int i, j;
switch ((tok = peek()).token) {
case '[':
do {
/* Evaluate a[b] = *(a + b). The semantics of pointer arithmetic
* takes care of multiplying b with the correct width. */
consume('[');
block = expression(block);
root = eval_expr(block, IR_OP_ADD, root, block->expr);
root = eval_deref(block, root);
consume(']');
} while (peek().token == '[');
break;
case '(':
type = root.type;
if (is_pointer(root.type) && is_function(root.type->next))
type = type_deref(root.type);
else if (!is_function(root.type)) {
error("Expression must have type pointer to function, was %t.",
root.type);
exit(1);
}
consume('(');
arg = calloc(nmembers(type), sizeof(*arg));
for (i = 0; i < nmembers(type); ++i) {
if (peek().token == ')') {
error("Too few arguments, expected %d but got %d.",
nmembers(type), i);
exit(1);
}
block = assignment_expression(block);
arg[i] = block->expr;
/* todo: type check here. */
if (i < nmembers(type) - 1) {
consume(',');
}
}
while (is_vararg(type) && peek().token != ')') {
consume(',');
arg = realloc(arg, (i + 1) * sizeof(*arg));
block = assignment_expression(block);
arg[i] = block->expr;
i++;
}
consume(')');
for (j = 0; j < i; ++j)
param(block, arg[j]);
free(arg);
root = eval_call(block, root);
break;
case '.':
consume('.');
tok = consume(IDENTIFIER);
field = find_type_member(root.type, tok.strval);
if (!field) {
error("Invalid field access, no member named '%s'.",
tok.strval);
exit(1);
}
root.type = field->type;
root.offset += field->offset;
break;
case ARROW:
consume(ARROW);
tok = consume(IDENTIFIER);
if (is_pointer(root.type) && is_struct_or_union(root.type->next)) {
field = find_type_member(type_deref(root.type), tok.strval);
if (!field) {
error("Invalid field access, no member named '%s'.",
tok.strval);
exit(1);
}
/* Make it look like a pointer to the field type, then perform
* normal dereferencing. */
root.type = type_init(T_POINTER, field->type);
root = eval_deref(block, root);
root.offset = field->offset;
} else {
error("Invalid field access.");
exit(1);
}
break;
case INCREMENT:
consume(INCREMENT);
copy = create_var(root.type);
eval_assign(block, copy, root);
expr = eval_expr(block, IR_OP_ADD, root, var_int(1));
eval_assign(block, root, expr);
root = copy;
break;
case DECREMENT:
consume(DECREMENT);
copy = create_var(root.type);
eval_assign(block, copy, root);
expr = eval_expr(block, IR_OP_SUB, root, var_int(1));
eval_assign(block, root, expr);
root = copy;
break;
default:
block->expr = root;
return block;
}
}
}
int i_execute_line (SOURCE_FILE * sf,const int todo)
{
l_get_line(sf);pline = line;
l_get_token();
if (token_type==TT_LINE_END)
{
return EXE_DO;// skip empty line
}
else if (IS_KEYWORD(token_type))
{
if (token_type==KEY_END)
{
return EXE_END;
}
else if (token_type==KEY_IF)
{
return i_execute_if (sf,todo);
}
else if (token_type==KEY_WHILE)
{
return i_execute_while(sf,todo);
}
else if (token_type==KEY_REPEAT)
{
return i_execute_repeat(sf,todo);
}
if (token_type==KEY_UNTIL)
{
return EXE_UNTIL;
}
else if (token_type==KEY_FOR)
{
return i_execute_for(sf,todo);
}
else if (token_type==KEY_CASE)
{
return i_execute_case(sf,todo);
}
else if (token_type==KEY_ELSEIF)
{
return EXE_ELSEIF;
}
else if (token_type==KEY_WHEN)
{
return EXE_WHEN;
}
else if (token_type==KEY_ELSE)
{
return EXE_ELSE;
}
if (!todo) return EXE_DO;
if (token_type==KEY_BREAK)
{
return EXE_BREAK;
}
else if (token_type==KEY_RETURN)
{
return EXE_RETURN;
}
else if (token_type==KEY_GOSUB)
{
extern int i_call_sub (SOURCE_FILE *,const char *);
l_get_token();
return i_call_sub(sf,token);
}
else if (token_type==KEY_DIM)
{
ARRAY * array;
long size;
while(1)
{
l_get_token();
// new array
array = (ARRAY*)calloc(sizeof(ARRAY),1);
array->name = s_strdup(token);
list_push(&list_array,array);
//
l_get_token();// skip '('
size = (long)calc_check(FALSE,pline);
if (size<=0)
{
merror_msg("illegal array size %d!",size);
}
array->size = size;
array->array = calloc(sizeof(real),size);
{
int i;
for (i=0;i<size;++i) array->array[i] = 0.0;
}
l_get_token();// skip ')'
l_get_token();
if (token_type==TT_COM) continue;
else if (token_type==TT_LINE_END) break;
}
}
else if (token_type==KEY_EXIT)
{
d_exit();
}
}
else if(token_type==TT_ID)
{
if (str_eq(token,"print"))
{
while(1)
{
l_get_token();
if (token_type==TT_STRING)
{
printf("%s",token);
}
else
{
real result;
char buf[128];
l_put_back();
result = calc_check(FALSE,pline);
d_ftoa(result,buf);
printf(buf);
}
l_get_token();
if (token_type==TT_LINE_END)break;
}//while
}//print
else if (str_eq(token,"input"))
{
VAR * v;char buf[64];
while(1)
{
l_get_token();
v = get_var(token);
gets(64,buf);puts(buf);
v->value = atof(buf);
l_get_token();
if (token_type==TT_LINE_END)break;
}//while
}//input
else
{
ARRAY * a;
VAR * var;
var = find_var(token);
if (var!=NULL)
{
l_get_token(); //skip '='
var->value = calc_check(FALSE,pline);
return EXE_DO;
}
a = find_array(token);
if(a!=NULL)
{
int index;
l_get_token();//skip (
index = (int)calc_check(FALSE,pline);
// delete this line,calc_check call skip ( automatically
//l_get_token();//skip )
l_get_token();// skip =
assign_element(a,index,calc_check(FALSE,pline));
return EXE_DO;
}
var = create_var(token);
l_get_token(); //skip '='
var->value = calc_check(FALSE,pline);
return EXE_DO;
}//assign
}// TT_ID
else
{
merror_illegal_token();
}
return EXE_DO;
}
struct list *
read_config(const char *filename)
{
APP_DEBUG_FNAME;
struct list *beg_cmd;
struct list *beg_var;
struct list *l;
FILE *in;
char *line;
size_t len;
ssize_t read_len;
beg_cmd = NULL;
beg_var = NULL;
len = CONF_LINE_MAXLENGTH;
line = alloc_string_size(len);
in = fopen(filename, "r");
if (in == NULL) {
ERR("fopen('%s'): %s", filename, strerr());
myabort();
}
else
{
while ((read_len = getline(&line, &len, in)) != -1) {
// remove \n from the end
if (read_len > 0)
line[read_len - 1] = '\0';
switch (check_line(line)) {
case LINE_VARIABLE:
l = malloc(sizeof (struct list));
l->next = beg_var;
l->item = create_var(line, beg_var);
beg_var = l;
break;
case LINE_COMMAND:
l = malloc(sizeof (struct list));
l->next = beg_cmd;
l->item = create_cmd(line, beg_var);
beg_cmd = l;
break;
case LINE_BAD:
WARN("bad line structure '%s'", line);
break;
case LINE_IGNORE:
DEBUG("ignoring line '%s'", line);
break;
}
l = NULL;
}
if (ferror(in))
WARN("ferror while reading '%s', try to continue",
filename);
fclose(in);
print_cfg(beg_var, beg_cmd);
}
free(line);
delete_list(&beg_var);
return (beg_cmd);
}
