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comparison tests/agcl/examples/good/ffcalc.h @ 0:13d2b8934445

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Import AnaGram (near-)release tree into Mercurial.
author David A. Holland
date Sat, 22 Dec 2007 17:52:45 -0500
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-1:000000000000 0:13d2b8934445
1 #ifndef FFCALC_H
2 #define FFCALC_H
3
4 typedef union {
5 double alignment;
6 char ag_vt_2[sizeof(int)];
7 char ag_vt_4[sizeof(double)];
8 } ffcalc_vs_type;
9
10 typedef enum {
11 ffcalc_white_space_token = 1, ffcalc_calculator_token = 3,
12 ffcalc_calculation_token, ffcalc_eof_token = 10, ffcalc_expression_token,
13 ffcalc_name_token, ffcalc_error_token = 14, ffcalc_term_token,
14 ffcalc_factor_token = 18, ffcalc_integer_part_token = 30,
15 ffcalc_fraction_part_token = 32, ffcalc_digit_token = 34,
16 ffcalc_real_token = 44
17 } ffcalc_token_type;
18
19 typedef struct ffcalc_pcb_struct{
20 ffcalc_token_type token_number, reduction_token, error_frame_token;
21 int input_code;
22 int input_value;
23 int line, column;
24 int ssx, sn, error_frame_ssx;
25 int drt, dssx, dsn;
26 int ss[128];
27 ffcalc_vs_type vs[128];
28 int ag_ap;
29 const char *error_message;
30 char read_flag;
31 char exit_flag;
32 int bts[128], btsx;
33 int lab[3], rx, fx;
34 const unsigned char *key_sp;
35 int save_index, key_state;
36 char ag_msg[82];
37 } ffcalc_pcb_type;
38
39 #ifndef PRULE_CONTEXT
40 #define PRULE_CONTEXT(pcb) (&((pcb).cs[(pcb).ssx]))
41 #define PERROR_CONTEXT(pcb) ((pcb).cs[(pcb).error_frame_ssx])
42 #define PCONTEXT(pcb) ((pcb).cs[(pcb).ssx])
43 #endif
44
45 #ifndef AG_RUNNING_CODE
46 /* PCB.exit_flag values */
47 #define AG_RUNNING_CODE 0
48 #define AG_SUCCESS_CODE 1
49 #define AG_SYNTAX_ERROR_CODE 2
50 #define AG_REDUCTION_ERROR_CODE 3
51 #define AG_STACK_ERROR_CODE 4
52 #define AG_SEMANTIC_ERROR_CODE 5
53 #endif
54
55 extern ffcalc_pcb_type ffcalc_pcb;
56 void init_ffcalc(void);
57 void ffcalc(void);
58 #endif
59