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from libcpp.string cimport string
from libcpp.vector cimport vector
from utils cimport *
cimport lattice
cdef extern from "decoder/hg.h":
cdef cppclass Hypergraph:
cppclass Node:
int id_
WordID cat_
WordID NT()
#EdgesVector in_edges_
#EdgesVector out_edges_
Hypergraph(Hypergraph)
vector[Node] nodes_
cdef extern from "decoder/viterbi.h":
cdef prob_t ViterbiESentence(Hypergraph hg, vector[WordID]* trans)
cdef string ViterbiETree(Hypergraph hg)
cdef extern from "decoder/hg_io.h" namespace "HypergraphIO":
bint ReadFromJSON(istream* inp, Hypergraph* out)
bint WriteToJSON(Hypergraph hg, bint remove_rules, ostream* out)
#void WriteAsCFG(Hypergraph hg)
#void WriteTarget(string base, unsigned sent_id, Hypergraph hg)
void ReadFromPLF(string inp, Hypergraph* out, int line=*)
string AsPLF(Hypergraph hg, bint include_global_parentheses=*)
string AsPLF(lattice.Lattice lat, bint include_global_parentheses=*)
void PLFtoLattice(string plf, lattice.Lattice* pl)
cdef extern from "decoder/hg_intersect.h" namespace "HG":
bint Intersect(lattice.Lattice target, Hypergraph* hg)
cdef extern from "decoder/hg_sampler.h" namespace "HypergraphSampler":
cdef cppclass Hypothesis:
vector[WordID] words
SparseVector[double] fmap
prob_t model_score
void sample_hypotheses(Hypergraph hg, unsigned n, MT19937* rng, vector[Hypothesis]* hypos)
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