-#include <malloc.h>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
+#include <string.h>
+#include "alloc.h"
+#include "argument.h"
#include "debug.h"
+#include "element.h"
+#include "format.h"
+#include "program.h"
+#include "stack.h"
+#include "storage.h"
#include "parser.h"
double answer = 0;
-#define STORAGE_SIZE 10
-double storage[STORAGE_SIZE] = {0};
-
/* compare codes */
int codecmp (char *ref, char *str)
return 0;
}
-/* allocate new element */
-
-element_t *newelement (func_t function, int nbops, int prio)
-{
- element_t *new = (element_t *) calloc (1, sizeof (element_t));
- if (new == NULL) {
- VERBOSE (ERROR, fprintf (stderr, "can't allocate memory\n"));
- return NULL;
- }
- new->func = function;
- new->nbops = nbops;
- new->prio = prio;
-
- return new;
-}
-
-/* desallocate element */
-
-void delelement (element_t *root)
-{
- int i;
- if ((root != NULL) && (root != ERROR_OP)) {
- for (i = 0; i < root->nbops; i++) {
- if ((root->ops[i] != NULL) && (root->ops[i] != ERROR_OP)) {
- delelement (root->ops[i]);
- }
- }
- free (root);
- }
-}
-
-/* duplicate element */
-
-element_t *dupelement (element_t *root)
-{
- element_t *tmp = NULL;
- int i;
-
- if ((root == NULL) || (root == ERROR_OP)) {
- return root;
- }
- tmp = newelement (root->func, root->nbops, root->prio);
- if (tmp == NULL) {
- return ERROR_OP;
- }
- tmp->value = root->value;
- for (i = 0; i < root->nbops; i++) {
- tmp->ops[i] = dupelement (root->ops[i]);
- if (tmp->ops[i] == ERROR_OP) {
- delelement (tmp);
- return ERROR_OP;
- }
- }
- return tmp;
-}
-
/* functions */
+#define MAX_ARGS 100
+
#define NB_OPERATORS 14
keyword_t operators[NB_OPERATORS] = {
{ "+\t", Add, 2, 1, 1},
{ "|", Or, 2, 1, -2}
};
-#define NB_FUNCTIONS 17
+#define NB_FUNCTIONS 50
keyword_t functions[NB_FUNCTIONS] = {
{ "sqrt", Sqr, 1, 4, 5},
{ "pow", Pow, 2, 3, 5},
{ "cos", Cos, 1, 3, 5},
{ "sin", Sin, 1, 3, 5},
+ { "tan", Tan, 1, 3, 5},
+ { "acos", Acos, 1, 4, 5},
+ { "asin", Asin, 1, 4, 5},
{ "atan", Atan, 1, 4, 5},
- { "exp", Exp, 1, 3, 5},
+ { "ln", Ln, 1, 2, 5},
{ "log", Log, 1, 3, 5},
+ { "exp", Exp, 1, 3, 5},
+ { "erfc", Erfc, 1, 4, 5},
+ { "erf", Erf, 1, 3, 5},
+ { "abs", Abs, 1, 3, 5},
+ { "floor", Floor, 1, 5, 5},
+ { "ceil", Ceil, 1, 4, 5},
{ "sto", Store, 2, 3, 5},
{ "rcl", Recall, 1, 3, 5},
{ "inc", Inc, 1, 3, 5},
{ "dec", Dec, 1, 3, 5},
{ "disp", Disp, 0, 4, 9},
+ { "mem", Mem, 1, 3, 5},
+ { "clr", Clear, 0, 3, 9},
{ "quit", Quit, 0, 4, 9},
{ "help", Help, 0, 4, 9},
{ "!", Not, 1, 1, 6},
{ "cond", Cond, 3, 4, 5},
- { "whl", While, 2, 3, 5}
+ { "while", While, 2, 5, 5},
+ { "print", Print, 1, 5, 5},
+ { "prog", Prog, 2, 4, 9},
+ { "arg", Arg, 1, 3, 5},
+ { "call", Call, MAX_ARGS, 4, 5},
+ { "ls", List, 0, 2, 9},
+ { "edit", Edit, 1, 4, 9},
+ { "del", Del, 1, 3, 9},
+ { "get", Get, 1, 3, 5},
+ { "len", Length, 0, 3, 5},
+ { "pop", Pop, 0, 3, 5},
+ { "push", Push, 1, 4, 5},
+ { "put", Put, 2, 3, 5},
+ { "set", Set, MAX_ARGS, 3, 5},
+ { "show", Show, 0, 4, 5},
+ { "max", Max, 2, 3, 5},
+ { "mean", Mean, 2, 4, 5},
+ { "med", Median, 0, 3, 5},
+ { "min", Min, 2, 3, 5},
+ { "ord", Order, 0, 3, 5},
+ { "prod", Prod, 0, 4, 5},
+ { "sum", Sum, 0, 3, 5},
+ { "var", Variance, 2, 3, 5},
};
#define NB_CONSTANTS 3
{ "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)
{
element_t *new = newelement (func, nbops, prio);
- if (new == NULL) {
- return ERROR_OP;
- }
new->ops[0] = *proot;
new->ops[1] = parser (*pstr, pstr, new->prio);
if ((new->ops[1] == NULL) || ((new->ops[1] != ERROR_OP) && (new->ops[1]->prio == 9))) {
return ERROR_OP;
}
*proot = newelement (Val, 1, 5);
- if (*proot == NULL) {
- delelement (new);
- return ERROR_OP;
- }
(*proot)->ops[0] = new;
return *proot;
element_t *parser (char *str, char **next, int prio)
{
element_t *root = NULL;
+ char *string = str;
int i;
VERBOSE (DEBUG, fprintf (stdout, "Starting parsing\n"));
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')) {
continue;
}
+ /* check for open brace */
+
+ if (*str == '{') {
+ VERBOSE (DEBUG, fprintf (stdout, "start processing brace\n"));
+ if (root != NULL) {
+ delelement (root);
+ return ERROR_OP;
+ }
+ root = newelement (Code, 0, 5);
+
+ do {
+ new = parser (str + 1, &str, 0);
+ if ((new == NULL) || ((new != ERROR_OP) && (new->prio == 9))) {
+ delelement (new);
+ new = ERROR_OP;
+ }
+ if (new == ERROR_OP) {
+ delelement (root);
+ return ERROR_OP;
+ }
+ element_t *newcode = newelement (Code, root->nbops + 1, 5);
+ for (i = 0; i < root->nbops; i++) {
+ newcode->ops[i] = root->ops[i];
+ root->ops[i] = NULL;
+ }
+ newcode->ops[root->nbops] = new;
+ delelement (root);
+ root = newcode;
+ } while (*str == ',');
+
+ if (*str != '}') {
+ delelement (root);
+ return ERROR_OP;
+ }
+ str++;
+ VERBOSE (DEBUG, fprintf (stdout, "stop processing brace\n"));
+ continue;
+ }
+
/* check for open bracket */
if (*str == '(') {
} while (*str == ',');
} else {
root = newelement (Val, 1, 5);
- if (root == NULL) {
- return ERROR_OP;
- }
new = parser (str + 1, &str, 0);
if ((new == NULL) || ((new != ERROR_OP) && (new->prio == 9))) {
delelement (new);
continue;
}
- /* check for closing bracket or koma */
+ /* check for closing bracket, closing brace or koma */
- if ((*str == ')') || (*str == ',')) {
+ if ((*str == ')') || (*str == '}') || (*str == ',')) {
+ if (prio == -9) {
+ delelement (root);
+ return ERROR_OP;
+ }
if (next != NULL) {
*next = str;
}
keyword_t *operator = operators + i;
if (codecmp (operator->keyword, str) == 0) {
VERBOSE (DEBUG, fprintf (stdout, "start processing operator\n"));
- if (root) {
+ if ((root) && (root->prio == 9)) {
+ VERBOSE (DEBUG, fprintf (stdout, "terminal function (%d)\n", root->func));
+ delelement (root);
+ return ERROR_OP;
+ } else if (root) {
if ((prio) && (prio > operator->prio)) {
VERBOSE (DEBUG, fprintf (stdout, "stop because operator priority\n"));
*next = str;
return ERROR_OP;
}
} else if (*str == '-') {
- new = newelement (Sig, 1, 9);
- if (new == NULL) {
- return ERROR_OP;
- }
- root = new;
+ root = newelement (Sig, 1, 6);
} else {
return ERROR_OP;
}
VERBOSE (DEBUG, fprintf (stdout, "start processing function\n"));
if (root == NULL) {
VERBOSE (INFO, fprintf (stdout, "Func: %d\n", function->func));
- new = newelement (function->func, function->nbops, function->prio);
- if (new == NULL) {
- return ERROR_OP;
- }
- root = new;
+ root = newelement (function->func, function->nbops, function->prio);
} else {
delelement (root);
return ERROR_OP;
VERBOSE (DEBUG, fprintf (stdout, "start processing constant\n"));
if (root == NULL) {
VERBOSE (INFO, fprintf (stdout, "Const: %d\n", constant->func));
- new = newelement (constant->func, constant->nbops, constant->prio);
- if (new == NULL) {
- return ERROR_OP;
- }
- root = new;
+ root = newelement (constant->func, constant->nbops, constant->prio);
} else {
delelement (root);
return ERROR_OP;
if (str != pt) {
if ((root == NULL) || (root->prio == 6)) {
new = newelement (Val, 1, 5);
- if (new == NULL) {
- return ERROR_OP;
- }
new->value = value;
if (root == NULL) {
root = new;
*next = str;
}
+ /* save string */
+ if (root != NULL) {
+ root->string = string;
+ }
+
return root;
}
case Sqr: func = "Square Root"; break;
case Cos: func = "Cosine"; break;
case Sin: func = "Sine"; break;
+ case Tan: func = "Tangent"; break;
+ case Acos: func = "Arc Cosine"; break;
+ case Asin: func = "Arc Sine"; break;
case Atan: func = "Arc Tangent"; break;
- case Log: func = "Logarithm"; break;
+ case Ln: func = "Logarithm (natural)"; break;
+ case Log: func = "Logarithm (10 base)"; break;
case Exp: func = "Exponantial"; break;
+ case Erfc: func = "Complementary Error Function"; break;
+ case Erf: func = "Error Function"; break;
+ case Abs: func = "Absolute value"; break;
+ case Ceil: func = "Ceil value"; break;
+ case Floor: func = "Floor value"; break;
case Store: func = "Store"; break;
case Recall: func = "Recall"; 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 Not: func = "Not"; break;
case Cond: func = "Condition"; break;
case While: func = "While"; break;
+ case Code: func = "Code"; break;
+ case Print: func = "Print"; break;
+ case Prog: func = "Program"; break;
+ case Arg: func = "Argument"; break;
+ case Call: func = "Call"; break;
+ case List: func = "List"; break;
+ case Edit: func = "Edit"; break;
+ case Del: func = "Del"; break;
+ case Get: func = "Get"; break;
+ case Length: func = "Length"; break;
+ case Pop: func = "Pop"; break;
+ case Push: func = "Push"; break;
+ case Put: func = "Put"; break;
+ case Set: func = "Set"; break;
+ case Show: func = "Show"; break;
+ case Max: func = "Maximum"; break;
+ case Mean: func = "Mean"; break;
+ case Median: func = "Median"; break;
+ case Min: func = "Minimum"; break;
+ case Order: func = "Order"; break;
+ case Prod: func = "Product"; break;
+ case Sum: func = "Sum"; break;
+ case Variance: func = "Variance"; break;
}
fprintf (stdout, "Function: %s\n", func);
}
}
-/* storage functions */
-
-double store (int index, double value)
-{
- if ((index > 0) && (index <= STORAGE_SIZE)) {
- storage[index - 1] = value;
- } else {
- VERBOSE (WARNING, fprintf (stdout, "invalid index (%d) [1, %d]\n", index, STORAGE_SIZE));
- }
- return value;
-}
-
-double recall (int index)
-{
- if ((index > 0) && (index <= STORAGE_SIZE)) {
- return storage[index - 1];
- } else {
- VERBOSE (WARNING, fprintf (stdout, "invalid index (%d) [1, %d]\n", index, STORAGE_SIZE));
- }
- return 0;
-}
-
-double increase (int index)
-{
- if ((index > 0) && (index <= STORAGE_SIZE)) {
- return storage[index - 1]++;
- } else {
- VERBOSE (WARNING, fprintf (stdout, "invalid index (%d) [1, %d]\n", index, STORAGE_SIZE));
- }
- return 0;
-}
-
-double decrease (int index)
-{
- if ((index > 0) && (index <= STORAGE_SIZE)) {
- return storage[index - 1]--;
- } else {
- VERBOSE (WARNING, fprintf (stdout, "invalid index (%d) [1, %d]\n", index, STORAGE_SIZE));
- }
- return 0;
-}
-
-void display (void)
-{
- int i;
- fprintf (stdout, "storage:");
- for (i = 0; i < STORAGE_SIZE; i++) {
- fprintf (stdout, " %g", storage[i]);
- }
- fprintf (stdout, "\n");
-}
-
/* While do function */
double while_do (element_t *cond, element_t *action)
element_t *temp = NULL;
VERBOSE (DEBUG, fprintf (stdout, "starting while loop\n"));
- if (cond == NULL) {
- return ret;
- }
while (1) {
VERBOSE (DEBUG, fprintf (stdout, "loop...\n"));
temp = dupelement (cond);
- if (!evaluate_element (temp, 0)) {
+ double test = evaluate_element (temp, 0);
+ delelement (temp);
+ if (!test) {
break;
}
if (action) {
temp = dupelement (action);
ret = evaluate_element (temp, 0);
+ delelement (temp);
}
}
return ret;
}
+/* program function */
+
+double execute_code (element_t **prog, int nbcalls)
+{
+ double ret = 0;
+ int i;
+ for (i = 0; i < nbcalls; i++) {
+ ret = evaluate_element (prog[i], 0);
+ }
+ return ret;
+}
+
/* quit function */
void quit (void)
void help (void)
{
fprintf (stdout, "calc is a simple calculator\n\n");
- fprintf (stdout, "supported operators:");
+ fprintf (stdout, "arithmetic op.:");
fprintf (stdout, " + - * / %% ^\n");
- fprintf (stdout, "camparison operators:");
+ fprintf (stdout, "comparison op.:");
fprintf (stdout, " == != >= <= > <\n");
- fprintf (stdout, "logical operators:");
+ fprintf (stdout, "logical op.:");
fprintf (stdout, " & | !\n");
- fprintf (stdout, "supported functions:");
- fprintf (stdout, " pow sqrt cos sin atan log exp\n");
- fprintf (stdout, "storage functions:");
- fprintf (stdout, " sto rcl inc dec\n");
- fprintf (stdout, "conditional functions:");
- fprintf (stdout, " cond\n");
- fprintf (stdout, "miscellaneous functions:");
- fprintf (stdout, " quit help\n");
- fprintf (stdout, "supported constants:");
- fprintf (stdout, " e pi\n");
+ fprintf (stdout, "mathematic func.:");
+ fprintf (stdout, " exp ln log pow sqrt\n");
+ fprintf (stdout, "trigonometric func.:");
+ fprintf (stdout, " acos asin atan cos sin tan\n");
+ fprintf (stdout, "error functions:");
+ fprintf (stdout, " erf erfc\n");
+ fprintf (stdout, "miscellaneous func.:");
+ fprintf (stdout, " abs ceil floor\n");
+ fprintf (stdout, "storage func.:");
+ fprintf (stdout, " clear dec disp inc mem rcl sto\n");
+ fprintf (stdout, "control flow prim.:");
+ fprintf (stdout, " cond print while {} ;\n");
+ fprintf (stdout, "program management:");
+ fprintf (stdout, " arg call del edit ls prog\n");
+ fprintf (stdout, "stack management:");
+ fprintf (stdout, " get len pop push put set show\n");
+ fprintf (stdout, "stack func.:");
+ fprintf (stdout, " max mean med min ord prod sum var\n");
+ fprintf (stdout, "control management:");
+ fprintf (stdout, " help quit\n");
+ fprintf (stdout, "constants:");
+ fprintf (stdout, " ans e pi\n");
}
/* evaluate element tree */
{
double op0 = 0, op1 = 0;
char nextmask = mask;
+ int i, nb;
if ((root == NULL) || (root == ERROR_OP)) {
VERBOSE (WARNING, fprintf (stdout, "error while evaluating\n"));
case Sqr:
case Cos:
case Sin:
+ case Tan:
+ case Acos:
+ case Asin:
case Atan:
+ case Ln:
case Log:
case Exp:
+ case Erfc:
+ case Erf:
+ case Abs:
+ case Ceil:
+ case Floor:
case Recall:
case Inc:
case Dec:
case Not:
+ case Mem:
case Cond:
+ case Prog:
+ case Arg:
+ case Call:
+ case Edit:
+ case Del:
+ case Get:
if (root->ops[0]) {
op0 = evaluate_element (root->ops[0], 0);
} else {
}
break;
case Disp:
+ case Clear:
case Quit:
case Help:
case Ans:
case Pi:
case E:
+ case Code:
+ case List:
+ case Length:
+ case Pop:
+ case Set:
+ case Show:
+ case Median:
+ case Order:
+ case Prod:
+ case Sum:
break;
case While:
if (root->ops[0] == NULL) {
return 0;
}
break;
+ case Push:
+ case Print:
+ op0 = (root->ops[0]) ? evaluate_element (root->ops[0], 0) : answer;
+ break;
+ case Put:
+ if (root->ops[0]) {
+ op0 = evaluate_element (root->ops[0], 0);
+ } else {
+ VERBOSE (WARNING, fprintf (stdout, "error while evaluating (op[0])\n"));
+ return 0;
+ }
+ op1 = (root->ops[1]) ? evaluate_element (root->ops[1], 0) : answer;
+ break;
+ case Max:
+ case Mean:
+ case Min:
+ case Variance:
+ if (root->ops[0]) {
+ op0 = evaluate_element (root->ops[0], 0);
+ op1 = (root->ops[1]) ? evaluate_element (root->ops[1], 0) : answer;
+ }
}
switch (root->func) {
case Sqr: return sqrt (op0);
case Cos: return cos (op0);
case Sin: return sin (op0);
+ case Tan: return tan (op0);
+ case Acos: return acos (op0);
+ case Asin: return asin (op0);
case Atan: return atan (op0);
- case Log: return log (op0);
+ case Ln: return log (op0);
+ case Log: return log10 (op0);
case Exp: return exp (op0);
+ case Erfc: return erfc (op0);
+ case Erf: return erf (op0);
+ case Abs: return fabs (op0);
+ case Ceil: return ceil (op0);
+ case Floor: return floor (op0);
case Store: return store ((int)op0, (op1) ? op1 : answer);
case Recall: return recall ((int)op0);
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;
return 0;
}
case While: return while_do (root->ops[0], root->ops[1]);
+ case Code: return execute_code (root->ops, root->nbops);
+ case Print: return print (op0);
+ case Prog:
+ prog ((int)op0, root->ops[1]);
+ savestring ((int)op0, root->string);
+ break;
+ case Arg: return arg ((int)op0);
+ case Call:
+ for (i = 1, nb = 0; i < root->nbops; i++) {
+ if (root->ops[i]) {
+ nb++;
+ }
+ }
+ return call ((int)op0, nb, root->ops + 1);
+ case List: list (); break;
+ case Edit: edit ((int)op0); break;
+ case Del: del ((int)op0); break;
+ case Get: return get ((int)op0);
+ case Length: return length ();
+ case Pop: return pop ();
+ case Push: return push (op0);
+ case Put: return put ((int)op0, op1);
+ case Set:
+ for (i = 0, nb =0; i < root->nbops; i++) {
+ if (root->ops[i]) {
+ nb++;
+ }
+ }
+ return set (nb, root->ops);
+ case Show: show (); break;
+ case Max:
+ if (root->ops[0]) {
+ return op0 > op1 ? op0 : op1;
+ }
+ return max ();
+ case Mean:
+ if (root->ops[0]) {
+ return (op0 + op1) / 2;
+ }
+ return mean ();
+ case Median: return median ();
+ case Min:
+ if (root->ops[0]) {
+ return op0 < op1 ? op0 : op1;
+ }
+ return min ();
+ case Order: order (); break;
+ case Prod: return prod ();
+ case Sum: return sum ();
+ case Variance:
+ if (root->ops[0]) {
+ double m = (op0 + op1) / 2;
+ op0 -= m;
+ op1 -= m;
+ return op0 * op0 + op1 * op1;
+ }
+ return variance ();
}
return 0;
}
+char **generate_completion_list ()
+{
+ int i, j, l = 0;
+ char **list = (char **) callocordie (NB_OPERATORS + NB_FUNCTIONS + NB_CONSTANTS + NB_SYMBOLS + 1, sizeof (char *));
+
+ 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);
+ if (list[l] != NULL) {
+ l++;
+ }
+ }
+
+ for (i = 0; i < NB_CONSTANTS; i++) {
+ list[l] = strdup ((constants + i)->keyword);
+ if (list[l] != NULL) {
+ l++;
+ }
+ }
+
+ for (i = 0; i < NB_SYMBOLS; i++) {
+ list[l] = strdup (symbols[i]);
+ if (list[l] != NULL) {
+ l++;
+ }
+ }
+
+ return (list);
+}
+
+void free_completion_list (char **list)
+{
+ int i;
+
+ if (list) {
+ for (i = 0; i < NB_OPERATORS + NB_FUNCTIONS + NB_CONSTANTS + NB_SYMBOLS + 1; i++) {
+ if (list[i] != NULL) {
+ free (list[i]);
+ }
+ }
+ free (list);
+ }
+}
+
/* vim: set ts=4 sw=4 et: */
Soft'N'Design Software / projects / calc.git / blobdiff