SphinxBase  5prealpha
jsgf_internal.h
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37 
38 #ifndef __JSGF_INTERNAL_H__
39 #define __JSGF_INTERNAL_H__
40 
45 #include <stdio.h>
46 
47 #include <sphinxbase/hash_table.h>
48 #include <sphinxbase/glist.h>
49 #include <sphinxbase/fsg_model.h>
50 #include <sphinxbase/logmath.h>
51 #include <sphinxbase/strfuncs.h>
52 #include <sphinxbase/jsgf.h>
53 
54 
55 /* Flex uses strdup which is missing on WinCE */
56 #if defined(_WIN32) || defined(_WIN32_WCE)
57 #define strdup _strdup
58 #endif
59 
60 #ifdef __cplusplus
61 extern "C" {
62 #endif
63 #if 0
64 /* Fool Emacs. */
65 }
66 #endif
67 
68 #define YY_NO_INPUT /* Silence a compiler warning. */
69 
70 typedef struct jsgf_rhs_s jsgf_rhs_t;
71 typedef struct jsgf_atom_s jsgf_atom_t;
72 typedef struct jsgf_link_s jsgf_link_t;
74 
75 struct jsgf_s {
76  char *version;
77  char *charset;
78  char *locale;
79  char *name;
86  /* Scratch variables for FSG conversion. */
87  int nstate;
90 };
91 
92 /* A type to keep track of the stack of rules currently being expanded. */
95  int entry;
96 };
97 
98 struct jsgf_rule_s {
99  int refcnt;
100  char *name;
101  int is_public;
103 };
104 
105 struct jsgf_rhs_s {
108 };
109 
110 struct jsgf_atom_s {
111  char *name;
113  float weight;
114 };
115 
116 struct jsgf_link_s {
118  int from;
119  int to;
120 };
121 
122 #define jsgf_atom_is_rule(atom) ((atom)->name[0] == '<')
123 
124 void jsgf_add_link(jsgf_t *grammar, jsgf_atom_t *atom, int from, int to);
125 jsgf_atom_t *jsgf_atom_new(char *name, float weight);
126 jsgf_atom_t *jsgf_kleene_new(jsgf_t *jsgf, jsgf_atom_t *atom, int plus);
127 jsgf_rule_t *jsgf_optional_new(jsgf_t *jsgf, jsgf_rhs_t *exp);
128 jsgf_rule_t *jsgf_define_rule(jsgf_t *jsgf, char *name, jsgf_rhs_t *rhs, int is_public);
129 jsgf_rule_t *jsgf_import_rule(jsgf_t *jsgf, char *name);
130 
131 int jsgf_atom_free(jsgf_atom_t *atom);
132 int jsgf_rule_free(jsgf_rule_t *rule);
133 jsgf_rule_t *jsgf_rule_retain(jsgf_rule_t *rule);
134 
135 #ifdef __cplusplus
136 }
137 #endif
138 
139 
140 #endif /* __JSGF_H__ */
Miscellaneous useful string functions.
glist_t tags
Tags, if any (glist_t of char *)
glist_t links
Generated FSG links.
Definition: jsgf_internal.h:88
A node in a generic list.
Definition: glist.h:100
glist_t searchpath
List of directories to search for grammars.
Definition: jsgf_internal.h:84
char * name
Grammar name.
Definition: jsgf_internal.h:79
jsgf_rhs_t * alt
Linked list of alternates.
glist_t rulestack
Stack of currently expanded rules.
Definition: jsgf_internal.h:89
int nstate
Number of generated states.
Definition: jsgf_internal.h:87
char * charset
JSGF charset (default UTF-8)
Definition: jsgf_internal.h:77
jsgf_rhs_t * rhs
Expansion.
int is_public
Is this rule marked &#39;public&#39;?
char * name
Rule name (NULL for an alternation/grouping)
int refcnt
Reference count.
Definition: jsgf_internal.h:99
Generic linked-lists maintenance.
int entry
The entry-state for this expansion.
Definition: jsgf_internal.h:95
char * version
JSGF version (from header)
Definition: jsgf_internal.h:76
glist_t atoms
Sequence of items.
jsgf_t * parent
Parent grammar (if this is an imported one)
Definition: jsgf_internal.h:83
char * name
Rule or token name.
JSGF grammar compiler.
hash_table_t * rules
Defined or imported rules in this grammar.
Definition: jsgf_internal.h:81
jsgf_rule_t * rule
The rule being expanded.
Definition: jsgf_internal.h:94
Hash table implementation.
char * locale
JSGF locale (default C)
Definition: jsgf_internal.h:78
Fast integer logarithmic addition operations.
float weight
Weight (default 1)
hash_table_t * imports
Pointers to imported grammars.
Definition: jsgf_internal.h:82