| 1 | #ifndef __PARSER_H__ |
| 2 | #define __PARSER_H__ |
| 3 | |
| 4 | /* global variables */ |
| 5 | |
| 6 | extern double answer; |
| 7 | |
| 8 | /* function type */ |
| 9 | |
| 10 | typedef enum { |
| 11 | Val = 0, Sig, |
| 12 | Add, Sub, |
| 13 | Mul, Div, Mod, |
| 14 | Pow, Sqr, |
| 15 | Cos, Sin, Tan, Acos, Asin, Atan, |
| 16 | Ln, Log, Exp, |
| 17 | Erfc, Erf, |
| 18 | Abs, Ceil, Floor, |
| 19 | Store, Recall, Inc, Dec, Disp, Mem, Clear, |
| 20 | Quit, Help, |
| 21 | Ans, E, Pi, |
| 22 | Equal, Diff, Ge, Le, Gt, Lt, |
| 23 | And, Or, Not, |
| 24 | Cond, While, Code, Print, |
| 25 | Prog, Arg, Call, List, Edit, Del, |
| 26 | Get, Length, Pop, Push, Put, Set, Show, |
| 27 | Max, Mean, Median, Min, Order, Prod, Sum, Variance |
| 28 | } func_t; |
| 29 | |
| 30 | /* keyword type */ |
| 31 | |
| 32 | typedef struct _keyword_t { |
| 33 | char *keyword; |
| 34 | func_t func; |
| 35 | int nbops; |
| 36 | int offset; |
| 37 | float prio; |
| 38 | } keyword_t; |
| 39 | |
| 40 | /* calculus element type */ |
| 41 | |
| 42 | typedef struct _element_t { |
| 43 | func_t func; |
| 44 | int nbops; |
| 45 | struct _element_t **ops; |
| 46 | double value; |
| 47 | int prio; |
| 48 | int hidden; |
| 49 | char *string; |
| 50 | } element_t; |
| 51 | |
| 52 | #define ERROR_OP ((element_t *)(-1)) |
| 53 | |
| 54 | /* workspace type */ |
| 55 | |
| 56 | typedef struct _workspace_t { |
| 57 | int id; |
| 58 | double answer; |
| 59 | double *storage; |
| 60 | int storage_size; |
| 61 | double *argument; |
| 62 | int argument_size; |
| 63 | element_t *root; |
| 64 | double *stack; |
| 65 | int stack_size; |
| 66 | char *string; |
| 67 | } workspace_t; |
| 68 | |
| 69 | /* parser function */ |
| 70 | |
| 71 | void delelement (element_t *root); |
| 72 | |
| 73 | element_t *parser (char *str, char **next, int prio); |
| 74 | |
| 75 | void print_element (element_t *root, int level); |
| 76 | |
| 77 | double evaluate_element (element_t *root, char mask); |
| 78 | |
| 79 | /* completion functions */ |
| 80 | |
| 81 | char **generate_completion_list (); |
| 82 | |
| 83 | void free_completion_list (char **list); |
| 84 | |
| 85 | /* print function */ |
| 86 | |
| 87 | void set_format (char *prompt, int precision); |
| 88 | |
| 89 | void free_format (); |
| 90 | |
| 91 | double print (double value); |
| 92 | |
| 93 | #endif /* __PARSER_H__ */ |
| 94 | |
| 95 | /* vim: set ts=4 sw=4 et: */ |