comparison DEPENDENCIES/mingw32/Python27/include/grammar.h @ 87:2a2c65a20a8b

Add Python libs and headers
author Chris Cannam
date Wed, 25 Feb 2015 14:05:22 +0000
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86:413a9d26189e 87:2a2c65a20a8b
1
2 /* Grammar interface */
3
4 #ifndef Py_GRAMMAR_H
5 #define Py_GRAMMAR_H
6 #ifdef __cplusplus
7 extern "C" {
8 #endif
9
10 #include "bitset.h" /* Sigh... */
11
12 /* A label of an arc */
13
14 typedef struct {
15 int lb_type;
16 char *lb_str;
17 } label;
18
19 #define EMPTY 0 /* Label number 0 is by definition the empty label */
20
21 /* A list of labels */
22
23 typedef struct {
24 int ll_nlabels;
25 label *ll_label;
26 } labellist;
27
28 /* An arc from one state to another */
29
30 typedef struct {
31 short a_lbl; /* Label of this arc */
32 short a_arrow; /* State where this arc goes to */
33 } arc;
34
35 /* A state in a DFA */
36
37 typedef struct {
38 int s_narcs;
39 arc *s_arc; /* Array of arcs */
40
41 /* Optional accelerators */
42 int s_lower; /* Lowest label index */
43 int s_upper; /* Highest label index */
44 int *s_accel; /* Accelerator */
45 int s_accept; /* Nonzero for accepting state */
46 } state;
47
48 /* A DFA */
49
50 typedef struct {
51 int d_type; /* Non-terminal this represents */
52 char *d_name; /* For printing */
53 int d_initial; /* Initial state */
54 int d_nstates;
55 state *d_state; /* Array of states */
56 bitset d_first;
57 } dfa;
58
59 /* A grammar */
60
61 typedef struct {
62 int g_ndfas;
63 dfa *g_dfa; /* Array of DFAs */
64 labellist g_ll;
65 int g_start; /* Start symbol of the grammar */
66 int g_accel; /* Set if accelerators present */
67 } grammar;
68
69 /* FUNCTIONS */
70
71 grammar *newgrammar(int start);
72 dfa *adddfa(grammar *g, int type, char *name);
73 int addstate(dfa *d);
74 void addarc(dfa *d, int from, int to, int lbl);
75 dfa *PyGrammar_FindDFA(grammar *g, int type);
76
77 int addlabel(labellist *ll, int type, char *str);
78 int findlabel(labellist *ll, int type, char *str);
79 char *PyGrammar_LabelRepr(label *lb);
80 void translatelabels(grammar *g);
81
82 void addfirstsets(grammar *g);
83
84 void PyGrammar_AddAccelerators(grammar *g);
85 void PyGrammar_RemoveAccelerators(grammar *);
86
87 void printgrammar(grammar *g, FILE *fp);
88 void printnonterminals(grammar *g, FILE *fp);
89
90 #ifdef __cplusplus
91 }
92 #endif
93 #endif /* !Py_GRAMMAR_H */