Mercurial > hg > vamp-build-and-test
comparison DEPENDENCIES/mingw32/Python27/include/grammar.h @ 87:2a2c65a20a8b
Add Python libs and headers
author | Chris Cannam |
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date | Wed, 25 Feb 2015 14:05:22 +0000 |
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86:413a9d26189e | 87:2a2c65a20a8b |
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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 */ |