SphinxBase
0.6
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JSGF grammar compiler. More...
#include <stdio.h>
#include <sphinxbase/sphinxbase_export.h>
#include <sphinxbase/hash_table.h>
#include <sphinxbase/fsg_model.h>
#include <sphinxbase/logmath.h>
Go to the source code of this file.
Macros | |
#define | jsgf_rule_iter_next(itor) hash_table_iter_next(itor) |
Advance an iterator to the next rule in the grammar. | |
#define | jsgf_rule_iter_rule(itor) ((jsgf_rule_t *)(itor)->ent->val) |
Get the current rule in a rule iterator. | |
#define | jsgf_rule_iter_free(itor) hash_table_iter_free(itor) |
Free a rule iterator (if the end hasn't been reached). | |
Typedefs | |
typedef struct jsgf_s | jsgf_t |
typedef struct jsgf_rule_s | jsgf_rule_t |
typedef hash_iter_t | jsgf_rule_iter_t |
Iterator over rules in a grammar. | |
Functions | |
SPHINXBASE_EXPORT jsgf_t * | jsgf_grammar_new (jsgf_t *parent) |
Create a new JSGF grammar. More... | |
SPHINXBASE_EXPORT jsgf_t * | jsgf_parse_file (const char *filename, jsgf_t *parent) |
Parse a JSGF grammar from a file. More... | |
SPHINXBASE_EXPORT char const * | jsgf_grammar_name (jsgf_t *jsgf) |
Get the grammar name from the file. | |
SPHINXBASE_EXPORT void | jsgf_grammar_free (jsgf_t *jsgf) |
Free a JSGF grammar. | |
SPHINXBASE_EXPORT jsgf_rule_iter_t * | jsgf_rule_iter (jsgf_t *grammar) |
Get an iterator over all rules in a grammar. | |
SPHINXBASE_EXPORT jsgf_rule_t * | jsgf_get_rule (jsgf_t *grammar, char const *name) |
Get a rule by name from a grammar. | |
SPHINXBASE_EXPORT char const * | jsgf_rule_name (jsgf_rule_t *rule) |
Get the rule name from a rule. | |
SPHINXBASE_EXPORT int | jsgf_rule_public (jsgf_rule_t *rule) |
Test if a rule is public or not. | |
SPHINXBASE_EXPORT fsg_model_t * | jsgf_build_fsg (jsgf_t *grammar, jsgf_rule_t *rule, logmath_t *lmath, float32 lw) |
Build a Sphinx FSG object from a JSGF rule. | |
SPHINXBASE_EXPORT fsg_model_t * | jsgf_build_fsg_raw (jsgf_t *grammar, jsgf_rule_t *rule, logmath_t *lmath, float32 lw) |
Build a Sphinx FSG object from a JSGF rule. More... | |
SPHINXBASE_EXPORT fsg_model_t * | jsgf_read_file (const char *file, logmath_t *lmath, float32 lw) |
Read JSGF from file and return FSG object from it. More... | |
SPHINXBASE_EXPORT int | jsgf_write_fsg (jsgf_t *grammar, jsgf_rule_t *rule, FILE *outfh) |
Convert a JSGF rule to Sphinx FSG text form. More... | |
JSGF grammar compiler.
This file defines the data structures for parsing JSGF grammars into Sphinx finite-state grammars.
Definition in file jsgf.h.
SPHINXBASE_EXPORT fsg_model_t* jsgf_build_fsg_raw | ( | jsgf_t * | grammar, |
jsgf_rule_t * | rule, | ||
logmath_t * | lmath, | ||
float32 | lw | ||
) |
Build a Sphinx FSG object from a JSGF rule.
This differs from jsgf_build_fsg() in that it does not do closure on epsilon transitions or any other postprocessing. For the time being this is necessary in order to write it to a file - the FSG code will be fixed soon.
Definition at line 504 of file jsgf.c.
Referenced by jsgf_write_fsg().
Create a new JSGF grammar.
parent | optional parent grammar for this one (NULL, usually). |
Definition at line 79 of file jsgf.c.
References ckd_calloc, ckd_salloc, glist_add_ptr(), glist_reverse(), hash_table_new(), jsgf_s::imports, jsgf_s::parent, jsgf_s::rules, and jsgf_s::searchpath.
Referenced by jsgf_parse_file().
Parse a JSGF grammar from a file.
filename | the name of the file to parse. |
parent | optional parent grammar for this one (NULL, usually). |
Definition at line 734 of file jsgf.c.
References E_ERROR, E_ERROR_SYSTEM, jsgf_grammar_free(), and jsgf_grammar_new().
Referenced by jsgf_read_file().
SPHINXBASE_EXPORT fsg_model_t* jsgf_read_file | ( | const char * | file, |
logmath_t * | lmath, | ||
float32 | lw | ||
) |
Read JSGF from file and return FSG object from it.
This function looks for a first public rule in jsgf and constructs JSGF from it.
Definition at line 511 of file jsgf.c.
References E_ERROR, jsgf_build_fsg(), jsgf_grammar_free(), jsgf_parse_file(), jsgf_rule_iter(), jsgf_rule_iter_free, jsgf_rule_iter_next, jsgf_rule_iter_rule, and jsgf_rule_public().
SPHINXBASE_EXPORT int jsgf_write_fsg | ( | jsgf_t * | grammar, |
jsgf_rule_t * | rule, | ||
FILE * | outfh | ||
) |
Convert a JSGF rule to Sphinx FSG text form.
This does a direct conversion without doing transitive closure on null transitions and so forth.
Definition at line 542 of file jsgf.c.
References jsgf_build_fsg_raw(), logmath_free(), and logmath_init().