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Diffstat (limited to 'decoder/ff_fsa_data.h')
-rwxr-xr-x | decoder/ff_fsa_data.h | 131 |
1 files changed, 0 insertions, 131 deletions
diff --git a/decoder/ff_fsa_data.h b/decoder/ff_fsa_data.h deleted file mode 100755 index d215e940..00000000 --- a/decoder/ff_fsa_data.h +++ /dev/null @@ -1,131 +0,0 @@ -#ifndef FF_FSA_DATA_H -#define FF_FSA_DATA_H - -#include <stdint.h> //C99 -#include <sstream> -#include "sentences.h" -#include "feature_accum.h" -#include "value_array.h" -#include "ff.h" //debug -typedef ValueArray<uint8_t> Bytes; - -// stuff I see no reason to have virtual. but because it's impossible (w/o virtual inheritance to have dynamic fsa ff know where the impl's data starts, implemented a sync (copy) method that needs to be called. init_name_debug was already necessary to keep state in sync between ff and ff_from_fsa, so no sync should be needed after it. supposing all modifications were through setters, then no explicit sync call would ever be needed; updates could be mirrored. -struct FsaFeatureFunctionData -{ - void init_name_debug(std::string const& n,bool debug) { - name_=n; - debug_=debug; - } - //HACK for diamond inheritance (w/o costing performance) - FsaFeatureFunctionData *sync_to_; - - void sync() const { // call this if you modify any fields after your constructor is done - if (sync_to_) { - DBGINIT("sync to "<<*sync_to_); - *sync_to_=*this; - DBGINIT("synced result="<<*sync_to_<< " from this="<<*this); - } else { - DBGINIT("nobody to sync to - from FeatureFunctionData this="<<*this); - } - } - - friend std::ostream &operator<<(std::ostream &o,FsaFeatureFunctionData const& d) { - o << "[FSA "<<d.name_<<" features="<<FD::Convert(d.features_)<<" state_bytes="<<d.state_bytes()<<" end='"<<d.end_phrase()<<"' start="; - d.print_state(o,d.start_state()); - o<<"]"; - return o; - } - - FsaFeatureFunctionData(int statesz=0,Sentence const& end_sentence_phrase=Sentence()) : start(statesz),h_start(statesz),end_phrase_(end_sentence_phrase),ssz(statesz) { - debug_=true; - sync_to_=0; - } - - std::string name_; - std::string name() const { - return name_; - } - typedef SparseFeatureAccumulator Accum; - bool debug_; - bool debug() const { return debug_; } - void state_copy(void *to,void const*from) const { - if (ssz) - std::memcpy(to,from,ssz); - } - void state_zero(void *st) const { // you should call this if you don't know the state yet and want it to be hashed/compared properly - std::memset(st,0,ssz); - } - Features features() const { - return features_; - } - int n_features() const { - return features_.size(); - } - int state_bytes() const { return ssz; } - void const* start_state() const { - return start.begin(); - } - void const * heuristic_start_state() const { - return h_start.begin(); - } - Sentence const& end_phrase() const { return end_phrase_; } - template <class T> - static inline T* state_as(void *p) { return (T*)p; } - template <class T> - static inline T const* state_as(void const* p) { return (T*)p; } - std::string describe_features(FeatureVector const& feats) { - std::ostringstream o; - o<<feats; - return o.str(); - } - void print_state(std::ostream &o,void const*state) const { - char const* i=(char const*)state; - char const* e=i+ssz; - for (;i!=e;++i) - print_hex_byte(o,*i); - } - - Features features_; - Bytes start,h_start; // start state and estimated-features (heuristic) start state. set these. default empty. - Sentence end_phrase_; // words appended for final traversal (final state cost is assessed using Scan) e.g. "</s>" for lm. -protected: - int ssz; // don't forget to set this. default 0 (it may depend on params of course) - // this can be called instead or after constructor (also set bytes and end_phrase_) - void set_state_bytes(int sb=0) { - if (start.size()!=sb) start.resize(sb); - if (h_start.size()!=sb) h_start.resize(sb); - ssz=sb; - } - void set_end_phrase(WordID single) { - end_phrase_=singleton_sentence(single); - } - - inline void static to_state(void *state,char const* begin,char const* end) { - std::memcpy(state,begin,end-begin); - } - inline void static to_state(void *state,char const* begin,int n) { - std::memcpy(state,begin,n); - } - template <class T> - inline void static to_state(void *state,T const* begin,int n=1) { - to_state(state,(char const*)begin,n*sizeof(T)); - } - template <class T> - inline void static to_state(void *state,T const* begin,T const* end) { - to_state(state,(char const*)begin,(char const*)end); - } - inline static char hexdigit(int i) { - int j=i-10; - return j>=0?'a'+j:'0'+i; - } - inline static void print_hex_byte(std::ostream &o,unsigned c) { - o<<hexdigit(c>>4); - o<<hexdigit(c&0x0f); - } - inline static void Add(Featval v,SingleFeatureAccumulator *a) { - a->Add(v); - } - -}; - -#endif |