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authorChris Dyer <cdyer@cs.cmu.edu>2011-10-14 11:51:12 +0100
committerChris Dyer <cdyer@cs.cmu.edu>2011-10-14 11:51:12 +0100
commit171027795ba3a01ba2ed82d7036610ac397e1fe8 (patch)
tree5b7551db5441d9eecd5b40ea61f009d74ff89f11 /decoder/ff_fsa_data.h
parentee84ab027c0be54800cac0c9bff62dd097354f6d (diff)
remove FSA integration code. will have to be resurrected another day
Diffstat (limited to 'decoder/ff_fsa_data.h')
-rwxr-xr-xdecoder/ff_fsa_data.h131
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