diff options
| -rw-r--r-- | src/lookup/phonetic_lookup.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/src/lookup/phonetic_lookup.h b/src/lookup/phonetic_lookup.h index 5cdf5b5..61b0ee9 100644 --- a/src/lookup/phonetic_lookup.h +++ b/src/lookup/phonetic_lookup.h @@ -36,6 +36,9 @@ struct trellis_value_t { gint32 m_last_step; // the m_last_index points to the last trellis_node. gint32 m_last_index; + // the current index in this trellis_node. + // only initialized in the get_candidates method. + gint32 m_current_index; trellis_value_t(gfloat poss = FLT_MAX){ m_handles[0] = null_token; @@ -44,6 +47,7 @@ struct trellis_value_t { m_poss = poss; m_last_step = -1; m_last_index = -1; + m_current_index = -1; } }; @@ -178,12 +182,55 @@ private: /* Array of trellis_constraint_t */ GArray * m_constraints; +#if 0 + /* pre-mature optimazition? */ + GArray * m_cached_keys; + PhraseItem m_cached_phrase_item; +#endif + public: int add_constraint(size_t start, size_t end, phrase_token_t token); bool clear_constraint(size_t index); bool validate_constraint(PhoneticKeyMatrix * matrix); }; +/* Array of MatchResults */ +typedef GPtrArray * NBestMatchResults; + +template <gint32 nbest> +class PhoneticLookup { +protected: + ForwardPhoneticTrellis m_trellis; + BackwardPhoneticMatrix m_matrix; + + +protected: + bool search_unigram2(GPtrArray * topresults, + int start, int end, + PhraseIndexRanges ranges); + bool search_bigram2(GPtrArray * topresults, + int start, int end, + PhraseIndexRanges ranges); + + bool unigram_gen_next_step(int start, int end, + lookup_value_t * cur_step, + phrase_token_t token); + bool bigram_gen_next_step(int start, int end, + lookup_value_t * cur_step, + phrase_token_t token, + gfloat bigram_poss); + + bool save_next_step(int next_step_pos, trellis_value_t * cur_step, trellis_value_t * next_step); + +public: + + bool get_best_match(TokenVector prefixes, + PhoneticKeyMatrix * matrix, + ForwardPhoneticConstraints constraints, + NBestMatchResults & results); + +}; + }; #endif |