jsgf_internal.h
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#ifndef __JSGF_INTERNAL_H__
#define __JSGF_INTERNAL_H__
#include <stdio.h>
#include <sphinxbase/hash_table.h>
#include <sphinxbase/glist.h>
#include <sphinxbase/fsg_model.h>
#include <sphinxbase/logmath.h>
#include <sphinxbase/strfuncs.h>
#include <sphinxbase/jsgf.h>
/* Flex uses strdup which is missing on WinCE */
#if defined(_WIN32) || defined(_WIN32_WCE)
#define strdup _strdup
#endif
#ifdef __cplusplus
extern "C" {
#endif
#if 0
/* Fool Emacs. */
}
#endif
#define YY_NO_INPUT /* Silence a compiler warning. */
typedef struct jsgf_rhs_s jsgf_rhs_t;
typedef struct jsgf_atom_s jsgf_atom_t;
typedef struct jsgf_link_s jsgf_link_t;
typedef struct jsgf_rule_stack_s jsgf_rule_stack_t;
struct jsgf_s {
char *version;
char *charset;
char *locale;
char *name;
hash_table_t *rules;
hash_table_t *imports;
jsgf_t *parent;
glist_t searchpath;
/* Scratch variables for FSG conversion. */
int nstate;
glist_t links;
glist_t rulestack;
};
/* A type to keep track of the stack of rules currently being expanded. */
struct jsgf_rule_stack_s {
jsgf_rule_t *rule;
int entry;
};
struct jsgf_rule_s {
int refcnt;
char *name;
int is_public;
jsgf_rhs_t *rhs;
};
struct jsgf_rhs_s {
glist_t atoms;
jsgf_rhs_t *alt;
};
struct jsgf_atom_s {
char *name;
glist_t tags;
float weight;
};
struct jsgf_link_s {
jsgf_atom_t *atom;
int from;
int to;
};
#define jsgf_atom_is_rule(atom) ((atom)->name[0] == '<')
void jsgf_add_link(jsgf_t *grammar, jsgf_atom_t *atom, int from, int to);
jsgf_atom_t *jsgf_atom_new(char *name, float weight);
jsgf_atom_t *jsgf_kleene_new(jsgf_t *jsgf, jsgf_atom_t *atom, int plus);
jsgf_rule_t *jsgf_optional_new(jsgf_t *jsgf, jsgf_rhs_t *exp);
jsgf_rule_t *jsgf_define_rule(jsgf_t *jsgf, char *name, jsgf_rhs_t *rhs, int is_public);
jsgf_rule_t *jsgf_import_rule(jsgf_t *jsgf, char *name);
int jsgf_atom_free(jsgf_atom_t *atom);
int jsgf_rule_free(jsgf_rule_t *rule);
jsgf_rule_t *jsgf_rule_retain(jsgf_rule_t *rule);
#ifdef __cplusplus
}
#endif
#endif /* __JSGF_H__ */
glist.h
Generic linked-lists maintenance.
hash_table.h
Hash table implementation.
jsgf.h
JSGF grammar compiler.
logmath.h
Fast integer logarithmic addition operations.
strfuncs.h
Miscellaneous useful string functions.
jsgf_atom_s
Definition jsgf_internal.h:110
jsgf_atom_s::tags
glist_t tags
Tags, if any (glist_t of char *).
Definition jsgf_internal.h:112
jsgf_atom_s::weight
float weight
Weight (default 1).
Definition jsgf_internal.h:113
jsgf_atom_s::name
char * name
Rule or token name.
Definition jsgf_internal.h:111
jsgf_link_s
Definition jsgf_internal.h:116
jsgf_link_s::from
int from
From state.
Definition jsgf_internal.h:118
jsgf_link_s::atom
jsgf_atom_t * atom
Name, tags, weight.
Definition jsgf_internal.h:117
jsgf_link_s::to
int to
To state.
Definition jsgf_internal.h:119
jsgf_rhs_s
Definition jsgf_internal.h:105
jsgf_rhs_s::atoms
glist_t atoms
Sequence of items.
Definition jsgf_internal.h:106
jsgf_rhs_s::alt
jsgf_rhs_t * alt
Linked list of alternates.
Definition jsgf_internal.h:107
jsgf_rule_s
Definition jsgf_internal.h:98
jsgf_rule_s::name
char * name
Rule name (NULL for an alternation/grouping).
Definition jsgf_internal.h:100
jsgf_rule_s::is_public
int is_public
Is this rule marked 'public'?
Definition jsgf_internal.h:101
jsgf_rule_s::rhs
jsgf_rhs_t * rhs
Expansion.
Definition jsgf_internal.h:102
jsgf_rule_s::refcnt
int refcnt
Reference count.
Definition jsgf_internal.h:99
jsgf_rule_stack_s
Definition jsgf_internal.h:93
jsgf_rule_stack_s::entry
int entry
The entry-state for this expansion.
Definition jsgf_internal.h:95
jsgf_rule_stack_s::rule
jsgf_rule_t * rule
The rule being expanded.
Definition jsgf_internal.h:94
jsgf_s
Definition jsgf_internal.h:75
jsgf_s::locale
char * locale
JSGF locale (default C).
Definition jsgf_internal.h:78
jsgf_s::rulestack
glist_t rulestack
Stack of currently expanded rules.
Definition jsgf_internal.h:89
jsgf_s::nstate
int nstate
Number of generated states.
Definition jsgf_internal.h:87
jsgf_s::links
glist_t links
Generated FSG links.
Definition jsgf_internal.h:88
jsgf_s::imports
hash_table_t * imports
Pointers to imported grammars.
Definition jsgf_internal.h:82
jsgf_s::searchpath
glist_t searchpath
List of directories to search for grammars.
Definition jsgf_internal.h:84
jsgf_s::name
char * name
Grammar name.
Definition jsgf_internal.h:79
jsgf_s::charset
char * charset
JSGF charset (default UTF-8).
Definition jsgf_internal.h:77
jsgf_s::version
char * version
JSGF version (from header).
Definition jsgf_internal.h:76
jsgf_s::parent
jsgf_t * parent
Parent grammar (if this is an imported one).
Definition jsgf_internal.h:83
jsgf_s::rules
hash_table_t * rules
Defined or imported rules in this grammar.
Definition jsgf_internal.h:81