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from libcpp.string cimport string
from libcpp.vector cimport vector
from hypergraph cimport Hypergraph
from grammar cimport Grammar
from utils cimport *
cdef extern from "decoder/ff_register.h":
void register_feature_functions()
cdef extern from "decoder/decoder.h":
cdef cppclass SentenceMetadata:
pass
cdef cppclass DecoderObserver:
DecoderObserver()
cdef cppclass Decoder:
Decoder(istream* config_file) nogil
bint Decode(string& inp, DecoderObserver* observer) nogil
# access this to either *read* or *write* to the decoder's last
# weight vector (i.e., the weights of the finest past)
vector[weight_t]& CurrentWeightVector()
# void SetId(int id)
variables_map& GetConf()
# add grammar rules (currently only supported by SCFG decoders)
void AddSupplementalGrammarFromString(string& grammar_str) nogil
void AddSupplementalGrammar(shared_ptr[Grammar] grammar) nogil
cdef extern from "observer.h":
cdef cppclass BasicObserver(DecoderObserver):
Hypergraph* hypergraph
BasicObserver()
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