change whl to while

[calc.git] / parser.c

diff --git a/parser.c b/parser.c
index 9796048af19e5f8d552a682fef0c1afc564fd799..c023a6e959a5fe6fb3f86f76fba752bb97a0745b 100644 (file)
--- a/parser.c
+++ b/parser.c
@@ -115,15 +115,21 @@ keyword_t operators[NB_OPERATORS] = {
     { "|",   Or, 2, 1, -2}
 };
 
-#define NB_FUNCTIONS 17
+#define NB_FUNCTIONS 23
 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},
     { "log",  Log, 1, 3, 5},
+    { "exp",  Exp, 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},
@@ -133,7 +139,7 @@ keyword_t functions[NB_FUNCTIONS] = {
     { "help", Help, 0, 4, 9},
     { "!",    Not, 1, 1, 6},
     { "cond", Cond, 3, 4, 5},
-    { "whl",  While, 2, 3, 5}
+    { "while", While, 2, 5, 5}
 };
 
 #define NB_CONSTANTS 3
@@ -463,9 +469,15 @@ void print_element (element_t *root, int level)
     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 Exp: func = "Exponantial"; 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;
@@ -614,12 +626,14 @@ void help (void)
     fprintf (stdout, " == != >= <= > <\n");
     fprintf (stdout, "logical operators:");
     fprintf (stdout, " & | !\n");
+    fprintf (stdout, "mathematic functions:");
+    fprintf (stdout, " pow sqrt cos sin tan acos asin atan log exp\n");
     fprintf (stdout, "supported functions:");
-    fprintf (stdout, " pow sqrt cos sin atan log exp\n");
+    fprintf (stdout, " abs ceil floor\n");
     fprintf (stdout, "storage functions:");
     fprintf (stdout, " sto rcl inc dec\n");
     fprintf (stdout, "conditional functions:");
-    fprintf (stdout, " cond\n");
+    fprintf (stdout, " cond while\n");
     fprintf (stdout, "miscellaneous functions:");
     fprintf (stdout, " quit help\n");
     fprintf (stdout, "supported constants:");
@@ -691,9 +705,15 @@ double evaluate_element (element_t *root, char mask)
     case Sqr:
     case Cos:
     case Sin:
+    case Tan:
+    case Acos:
+    case Asin:
     case Atan:
     case Log:
     case Exp:
+    case Abs:
+    case Ceil:
+    case Floor:
     case Recall:
     case Inc:
     case Dec:
@@ -734,9 +754,15 @@ double evaluate_element (element_t *root, char mask)
     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 Exp: return exp (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);