libsent/src/dfa/init_dfa.c File Reference

Load Grammar file into memory and setup. More...

#include <sent/stddefs.h>
#include <sent/dfa.h>
#include <sent/vocabulary.h>
#include <sent/htk_hmm.h>

Go to the source code of this file.

Functions
boolean	init_dfa (DFA_INFO *dinfo, char *filename)
	Read in a grammar file and set to DFA grammar structure.
boolean	make_dfa_voca_ref (DFA_INFO *dinfo, WORD_INFO *winfo)
	Make correspondence between all words in dictionary and categories in grammar, both from a word to a category and from a category to words.
void	dfa_find_pause_word (DFA_INFO *dfa, WORD_INFO *winfo, HTK_HMM_INFO *hmminfo)
	Find pause word and pause category information, and set to the grammar data.
boolean	dfa_pause_word_append (DFA_INFO *dst, DFA_INFO *src, int coffset)
	Append the pause word/category information at the last.
boolean	read_grammar_from_socket (int sd, DFA_INFO **ret_dfa, WORD_INFO **ret_winfo, HTK_HMM_INFO *hmminfo)
	Read grammar (DFA and dictionary) from socket and returns newly allocated grammars.

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Detailed Description

Load Grammar file into memory and setup.

These functions read a grammar from file and setup for recognition process. They read a DFA grammar file, make mapping from word dictionary and find a noise category/word for pause handling.

Author:

Akinobu LEE

Date:

Tue Feb 15 14:20:43 2005

Revision

1.1.1.1

Definition in file init_dfa.c.

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Function Documentation

boolean init_dfa	(	DFA_INFO *	dinfo,
		char *	filename
	)

Read in a grammar file and set to DFA grammar structure.

Parameters:

	dinfo	[i/o] a blank DFA data
	filename	[in] DFA grammar file name

Definition at line 46 of file init_dfa.c.

Referenced by multigram_read_file_and_add().

boolean make_dfa_voca_ref	(	DFA_INFO *	dinfo,
		WORD_INFO *	winfo
	)

Make correspondence between all words in dictionary and categories in grammar, both from a word to a category and from a category to words.

Parameters:

	dinfo	[i/o] DFA grammar, category information will be built here.
	winfo	[i/o] Word dictionary, word-to-category information will be build here.

Definition at line 74 of file init_dfa.c.

Referenced by multigram_add_words_to_grammar(), and multigram_update().

void dfa_find_pause_word	(	DFA_INFO *	dfa,
		WORD_INFO *	winfo,
		HTK_HMM_INFO *	hmminfo
	)

Find pause word and pause category information, and set to the grammar data.

Parameters:

	dfa	[i/o] DFA grammar, sp_id and is_sp will be built here.
	winfo	[in] Word dictionary
	hmminfo	[in] HTK HMM to provide which is short pause HMM

Definition at line 107 of file init_dfa.c.

Referenced by multigram_update().

boolean dfa_pause_word_append	(	DFA_INFO *	dst,
		DFA_INFO *	src,
		int	coffset
	)

Append the pause word/category information at the last.

Parameters:

	dst	[i/o] DFA grammar
	src	[in] DFA grammar to be appended to dst
	coffset	appending category point in dst

Definition at line 138 of file init_dfa.c.

Referenced by multigram_append_to_global().

boolean read_grammar_from_socket	(	int	sd,
		DFA_INFO **	ret_dfa,
		WORD_INFO **	ret_winfo,
		HTK_HMM_INFO *	hmminfo
	)

Read grammar (DFA and dictionary) from socket and returns newly allocated grammars.

Parameters:

	sd	[in] socket descpriter
	ret_dfa	[out] read DFA
	ret_winfo	[out] read dictionary
	hmminfo	[in] HMM definition

Returns:

TRUE on success, or FALSE on failure.

Definition at line 178 of file init_dfa.c.

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