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very partial program functions
[calc.git]
/
parser.c
diff --git
a/parser.c
b/parser.c
index b4381ac338dab2381eab0516100b276ad4779939..395e2aea1e90642757ab4cf6fb2d891058d479a1 100644
(file)
--- a/
parser.c
+++ b/
parser.c
@@
-12,8
+12,16
@@
double answer = 0;
double answer = 0;
-#define STORAGE_SIZE 10
-double storage[STORAGE_SIZE] = {0};
+#define DEFAULT_STORAGE_SIZE 10
+int storage_size = -1;
+
+double *storage = NULL;
+
+#define DEFAULT_FORMAT "=> %.6g\n"
+char *format = NULL;
+char *minform = NULL;
+
+workspace_t *programs = NULL;
/* compare codes */
/* compare codes */
@@
-116,7
+124,7
@@
keyword_t operators[NB_OPERATORS] = {
{ "|", Or, 2, 1, -2}
};
{ "|", Or, 2, 1, -2}
};
-#define NB_FUNCTIONS
23
+#define NB_FUNCTIONS
31
keyword_t functions[NB_FUNCTIONS] = {
{ "sqrt", Sqr, 1, 4, 5},
{ "pow", Pow, 2, 3, 5},
keyword_t functions[NB_FUNCTIONS] = {
{ "sqrt", Sqr, 1, 4, 5},
{ "pow", Pow, 2, 3, 5},
@@
-136,11
+144,19
@@
keyword_t functions[NB_FUNCTIONS] = {
{ "inc", Inc, 1, 3, 5},
{ "dec", Dec, 1, 3, 5},
{ "disp", Disp, 0, 4, 9},
{ "inc", Inc, 1, 3, 5},
{ "dec", Dec, 1, 3, 5},
{ "disp", Disp, 0, 4, 9},
+ { "mem", Mem, 1, 3, 9},
+ { "clr", Clear, 0, 3, 9},
{ "quit", Quit, 0, 4, 9},
{ "help", Help, 0, 4, 9},
{ "!", Not, 1, 1, 6},
{ "cond", Cond, 3, 4, 5},
{ "quit", Quit, 0, 4, 9},
{ "help", Help, 0, 4, 9},
{ "!", Not, 1, 1, 6},
{ "cond", Cond, 3, 4, 5},
- { "while", While, 2, 5, 5}
+ { "while", While, 2, 5, 5},
+ { "print", Print, 1, 5, 5},
+ { "prog", Prog, 3, 4, 9},
+ { "call", Call, 10, 4, 5},
+ { "ls", List, 0, 2, 9},
+ { "edit", Edit, 1, 4, 9},
+ { "del", Del, 1, 3, 9}
};
#define NB_CONSTANTS 3
};
#define NB_CONSTANTS 3
@@
-150,6
+166,11
@@
keyword_t constants[NB_CONSTANTS] = {
{ "pi", Pi, 0, 2, 5}
};
{ "pi", Pi, 0, 2, 5}
};
+#define NB_SYMBOLS 4
+char *symbols[NB_SYMBOLS] = {
+ "(", ")", "{", "}"
+};
+
/* subparser function */
element_t *subparser (element_t **proot, char **pstr, func_t func, int nbops, int prio)
/* subparser function */
element_t *subparser (element_t **proot, char **pstr, func_t func, int nbops, int prio)
@@
-187,6
+208,15
@@
element_t *parser (char *str, char **next, int prio)
element_t *new = NULL;
VERBOSE (INFO, fprintf (stdout, "Processing: %s\n", str));
element_t *new = NULL;
VERBOSE (INFO, fprintf (stdout, "Processing: %s\n", str));
+ /* end without printing */
+
+ if (*str == ';') {
+ if (root) {
+ root->hidden = 1;
+ }
+ break;
+ }
+
/* skip spaces and tabs */
if ((*str == ' ') || (*str == '\t')) {
/* skip spaces and tabs */
if ((*str == ' ') || (*str == '\t')) {
@@
-484,6
+514,8
@@
void print_element (element_t *root, int level)
case Inc: func = "Increase"; break;
case Dec: func = "Decrease"; break;
case Disp: func = "Display"; break;
case Inc: func = "Increase"; break;
case Dec: func = "Decrease"; break;
case Disp: func = "Display"; break;
+ case Mem: func = "Memory"; break;
+ case Clear: func = "Clear"; break;
case Quit: func = "Quit"; break;
case Help: func = "Help"; break;
case Ans: func = "Ans"; break;
case Quit: func = "Quit"; break;
case Help: func = "Help"; break;
case Ans: func = "Ans"; break;
@@
-501,6
+533,12
@@
void print_element (element_t *root, int level)
case Cond: func = "Condition"; break;
case While: func = "While"; break;
case Prog: func = "Program"; break;
case Cond: func = "Condition"; break;
case While: func = "While"; break;
case Prog: func = "Program"; break;
+ case Print: func = "Print"; break;
+ case Prog: func = "Program"; break;
+ case Call: func = "Call"; break;
+ case List: func = "List"; break;
+ case Edit: func = "Edit"; break;
+ case Del: func = "Del"; break;
}
fprintf (stdout, "Function: %s\n", func);
}
fprintf (stdout, "Function: %s\n", func);
@@
-519,42
+557,76
@@
void print_element (element_t *root, int level)
/* storage functions */
/* storage functions */
+void memory (int nb)
+{
+ int i, l;
+ double *tmp = NULL;
+ if (nb != storage_size) {
+ l = (nb < storage_size) ? nb : storage_size;
+ tmp = (double *) calloc (nb, sizeof (double));
+ if (tmp == NULL) {
+ VERBOSE (ERROR, fprintf (stderr, "can't allocate memory\n"));
+ exit (1);
+ }
+ for (i = 0; i < l; i++) {
+ tmp[i] = storage[i];
+ }
+ if (storage != NULL) {
+ free (storage);
+ }
+ storage = tmp;
+ storage_size = nb;
+ }
+}
+
double store (int index, double value)
{
double store (int index, double value)
{
- if ((index > 0) && (index <= STORAGE_SIZE)) {
+ if (storage_size == -1) {
+ memory (DEFAULT_STORAGE_SIZE);
+ }
+ if ((index > 0) && (index <= storage_size)) {
storage[index - 1] = value;
} else {
storage[index - 1] = value;
} else {
- VERBOSE (WARNING, fprintf (stdout, "invalid index (%d) [
1, %d]\n", index, STORAGE_SIZE
));
+ VERBOSE (WARNING, fprintf (stdout, "invalid index (%d) [
%d, %d]\n", index, (storage_size) ? 1 : 0, storage_size
));
}
return value;
}
double recall (int index)
{
}
return value;
}
double recall (int index)
{
- if ((index > 0) && (index <= STORAGE_SIZE)) {
+ if (storage_size == -1) {
+ memory (DEFAULT_STORAGE_SIZE);
+ }
+ if ((index > 0) && (index <= storage_size)) {
return storage[index - 1];
} else {
return storage[index - 1];
} else {
- VERBOSE (WARNING, fprintf (stdout, "invalid index (%d) [
1, %d]\n", index, STORAGE_SIZE
));
+ VERBOSE (WARNING, fprintf (stdout, "invalid index (%d) [
%d, %d]\n", index, (storage_size) ? 1 : 0, storage_size
));
}
return 0;
}
double increase (int index)
{
}
return 0;
}
double increase (int index)
{
- if ((index > 0) && (index <= STORAGE_SIZE)) {
+ if (storage_size == -1) {
+ memory (DEFAULT_STORAGE_SIZE);
+ }
+ if ((index > 0) && (index <= storage_size)) {
return storage[index - 1]++;
} else {
return storage[index - 1]++;
} else {
- VERBOSE (WARNING, fprintf (stdout, "invalid index (%d) [
1, %d]\n", index, STORAGE_SIZE
));
+ VERBOSE (WARNING, fprintf (stdout, "invalid index (%d) [
%d, %d]\n", index, (storage_size) ? 1 : 0, storage_size
));
}
return 0;
}
double decrease (int index)
{
}
return 0;
}
double decrease (int index)
{
- if ((index > 0) && (index <= STORAGE_SIZE)) {
+ if (storage_size == -1) {
+ memory (DEFAULT_STORAGE_SIZE);
+ }
+ if ((index > 0) && (index <= storage_size)) {
return storage[index - 1]--;
} else {
return storage[index - 1]--;
} else {
- VERBOSE (WARNING, fprintf (stdout, "invalid index (%d) [
1, %d]\n", index, STORAGE_SIZE
));
+ VERBOSE (WARNING, fprintf (stdout, "invalid index (%d) [
%d, %d]\n", index, (storage_size) ? 1 : 0, storage_size
));
}
return 0;
}
}
return 0;
}
@@
-562,13
+634,25
@@
double decrease (int index)
void display (void)
{
int i;
void display (void)
{
int i;
+ if (storage_size == -1) {
+ memory (DEFAULT_STORAGE_SIZE);
+ }
fprintf (stdout, "storage:");
fprintf (stdout, "storage:");
- for (i = 0; i < STORAGE_SIZE; i++) {
- fprintf (stdout, " %g", storage[i]);
+ for (i = 0; i < storage_size; i++) {
+ fprintf (stdout, " ");
+ fprintf (stdout, minform, storage[i]);
}
fprintf (stdout, "\n");
}
}
fprintf (stdout, "\n");
}
+void clear ()
+{
+ int i;
+ for (i = 0; i < storage_size; i++) {
+ storage[i] = 0;
+ }
+}
+
/* While do function */
double while_do (element_t *cond, element_t *action)
/* While do function */
double while_do (element_t *cond, element_t *action)
@@
-608,6
+692,37
@@
double program_do (element_t **prog, int nbcalls)
return ret;
}
return ret;
}
+/* print function */
+
+void set_format (char *prompt, int precision)
+{
+ char buffer[128] = {0};
+ free_format ();
+ sprintf (buffer, "%s%%.%dg\n", prompt, precision);
+ format = strdup (buffer);
+ sprintf (buffer, "%%.%dg", precision);
+ minform = strdup (buffer);
+}
+
+void free_format ()
+{
+ if (format) {
+ free (format);
+ format = NULL;
+ }
+ if (minform) {
+ free (minform);
+ minform = NULL;
+ }
+}
+
+double print (double value)
+{
+ fprintf (stdout, format ? format : DEFAULT_FORMAT, value);
+ fflush (stdout);
+ return value;
+}
+
/* quit function */
void quit (void)
/* quit function */
void quit (void)
@@
-616,6
+731,25
@@
void quit (void)
exit (0);
}
exit (0);
}
+/* program function */
+
+void prog (int id, int nbmems, element_t *root)
+{ }
+
+double call (int id, int nbobs, element_t **ops)
+{
+ return 0;
+}
+
+void list ()
+{ }
+
+void edit (int id)
+{ }
+
+void del (int id)
+{ }
+
/* help message */
void help (void)
/* help message */
void help (void)
@@
-629,15
+763,15
@@
void help (void)
fprintf (stdout, " & | !\n");
fprintf (stdout, "mathematic functions:");
fprintf (stdout, " pow sqrt log exp\n");
fprintf (stdout, " & | !\n");
fprintf (stdout, "mathematic functions:");
fprintf (stdout, " pow sqrt log exp\n");
- fprintf (stdout, "trig
onometric functions
:");
+ fprintf (stdout, "trig
. func.
:");
fprintf (stdout, " cos sin tan acos asin atan\n");
fprintf (stdout, "supported functions:");
fprintf (stdout, " abs ceil floor\n");
fprintf (stdout, "storage functions:");
fprintf (stdout, " cos sin tan acos asin atan\n");
fprintf (stdout, "supported functions:");
fprintf (stdout, " abs ceil floor\n");
fprintf (stdout, "storage functions:");
- fprintf (stdout, "
sto rcl inc dec
\n");
- fprintf (stdout, "
conditional
functions:");
- fprintf (stdout, " cond while\n");
- fprintf (stdout, "misc
ellaneous
functions:");
+ fprintf (stdout, "
mem sto rcl inc dec disp
\n");
+ fprintf (stdout, "
prog.
functions:");
+ fprintf (stdout, " cond while
print {} ;
\n");
+ fprintf (stdout, "misc
.
functions:");
fprintf (stdout, " quit help\n");
fprintf (stdout, "supported constants:");
fprintf (stdout, " e pi\n");
fprintf (stdout, " quit help\n");
fprintf (stdout, "supported constants:");
fprintf (stdout, " e pi\n");
@@
-698,6
+832,7
@@
double evaluate_element (element_t *root, char mask)
case Lt:
case And:
case Or:
case Lt:
case And:
case Or:
+ case Prog:
if (root->ops[1]) {
op1 = evaluate_element (root->ops[1], nextmask);
} else if (root->func != Store) {
if (root->ops[1]) {
op1 = evaluate_element (root->ops[1], nextmask);
} else if (root->func != Store) {
@@
-721,7
+856,12
@@
double evaluate_element (element_t *root, char mask)
case Inc:
case Dec:
case Not:
case Inc:
case Dec:
case Not:
+ case Mem:
case Cond:
case Cond:
+ case Call:
+ case List:
+ case Edit:
+ case Del:
if (root->ops[0]) {
op0 = evaluate_element (root->ops[0], 0);
} else {
if (root->ops[0]) {
op0 = evaluate_element (root->ops[0], 0);
} else {
@@
-730,6
+870,7
@@
double evaluate_element (element_t *root, char mask)
}
break;
case Disp:
}
break;
case Disp:
+ case Clear:
case Quit:
case Help:
case Ans:
case Quit:
case Help:
case Ans:
@@
-743,6
+884,9
@@
double evaluate_element (element_t *root, char mask)
return 0;
}
break;
return 0;
}
break;
+ case Print:
+ op0 = (root->ops[0]) ? evaluate_element (root->ops[0], 0) : answer;
+ break;
}
switch (root->func) {
}
switch (root->func) {
@@
-771,6
+915,8
@@
double evaluate_element (element_t *root, char mask)
case Inc: return increase ((int)op0);
case Dec: return decrease ((int)op0);
case Disp: display (); break;
case Inc: return increase ((int)op0);
case Dec: return decrease ((int)op0);
case Disp: display (); break;
+ case Mem: memory ((int)op0); break;
+ case Clear: clear (); break;
case Quit: quit (); break;
case Help: help (); break;
case Ans: return answer;
case Quit: quit (); break;
case Help: help (); break;
case Ans: return answer;
@@
-795,6
+941,12
@@
double evaluate_element (element_t *root, char mask)
}
case While: return while_do (root->ops[0], root->ops[1]);
case Prog: return program_do (root->ops, root->nbops);
}
case While: return while_do (root->ops[0], root->ops[1]);
case Prog: return program_do (root->ops, root->nbops);
+ case Print: return print (op0);
+ case Prog: prog ((int)op0, (int)op1, root->ops[2]); break;
+ case Call: return call ((int)op0, root->nbops + 1, root->ops + 1);
+ case List: list (); break;
+ case Edit: edit ((int)op0); break;
+ case Del: del (int (op0)); break;
}
return 0;
}
return 0;
@@
-802,29
+954,44
@@
double evaluate_element (element_t *root, char mask)
char **generate_completion_list ()
{
char **generate_completion_list ()
{
- int i, l = 0;
- char **list = (char **) calloc (NB_
FUNCTIONS + NB_CONSTANT
S + 1, sizeof (char *));
+ int i,
j,
l = 0;
+ char **list = (char **) calloc (NB_
OPERATORS + NB_FUNCTIONS + NB_CONSTANTS + NB_SYMBOL
S + 1, sizeof (char *));
if (list == NULL) {
VERBOSE (ERROR, fprintf (stderr, "can't allocate memory\n"));
exit (1);
}
if (list == NULL) {
VERBOSE (ERROR, fprintf (stderr, "can't allocate memory\n"));
exit (1);
}
+ for (i = 0; i < NB_OPERATORS; i++) {
+ list[l] = strdup ((operators + i)->keyword);
+ for (j = 0; j < (int)strlen (list[l]); j++) {
+ if (list[i][j] == '\t') {
+ list[i][j] = '\0';
+ }
+ }
+ if (list[l] != NULL) {
+ l++;
+ }
+ }
+
for (i = 0; i < NB_FUNCTIONS; i++) {
list[l] = strdup ((functions + i)->keyword);
for (i = 0; i < NB_FUNCTIONS; i++) {
list[l] = strdup ((functions + i)->keyword);
- if (list[l] == NULL) {
- VERBOSE (ERROR, fprintf (stderr, "can't allocate memory\n"));
- exit (1);
+ if (list[l] != NULL) {
+ l++;
}
}
- l++;
}
for (i = 0; i < NB_CONSTANTS; i++) {
list[l] = strdup ((constants + i)->keyword);
}
for (i = 0; i < NB_CONSTANTS; i++) {
list[l] = strdup ((constants + i)->keyword);
- if (list[l] == NULL) {
- VERBOSE (ERROR, fprintf (stderr, "can't allocate memory\n"));
- exit (1);
+ if (list[l] != NULL) {
+ l++;
+ }
+ }
+
+ for (i = 0; i < NB_SYMBOLS; i++) {
+ list[l] = strdup (symbols[i]);
+ if (list[l] != NULL) {
+ l++;
}
}
- l++;
}
return (list);
}
return (list);