blob: 16b9e735fe6850a6447b5d8a568ccca7ce7d0cf5 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
|
#pragma once
#include <map>
#include <vector>
#include <boost/functional/hash.hpp>
#include <boost/unordered_map.hpp>
#include <boost/version.hpp>
#include "moses/Syntax/RuleTable.h"
#include "moses/Syntax/SymbolEqualityPred.h"
#include "moses/Syntax/SymbolHasher.h"
#include "moses/TargetPhrase.h"
#include "moses/TargetPhraseCollection.h"
#include "moses/Terminal.h"
#include "moses/Util.h"
#include "moses/Word.h"
namespace Moses
{
namespace Syntax
{
namespace T2S
{
class RuleTrie: public RuleTable
{
public:
class Node
{
public:
typedef boost::unordered_map<Word, Node, SymbolHasher,
SymbolEqualityPred> SymbolMap;
typedef boost::unordered_map<Word, TargetPhraseCollection::shared_ptr,
SymbolHasher, SymbolEqualityPred> TPCMap;
bool IsLeaf() const {
return m_sourceTermMap.empty() && m_nonTermMap.empty();
}
bool HasRules() const {
return !m_targetPhraseCollections.empty();
}
void Prune(std::size_t tableLimit);
void Sort(std::size_t tableLimit);
Node *GetOrCreateChild(const Word &sourceTerm);
Node *GetOrCreateNonTerminalChild(const Word &targetNonTerm);
TargetPhraseCollection::shared_ptr GetOrCreateTargetPhraseCollection(const Word &);
const Node *GetChild(const Word &sourceTerm) const;
const Node *GetNonTerminalChild(const Word &targetNonTerm) const;
TargetPhraseCollection::shared_ptr
GetTargetPhraseCollection(const Word &sourceLHS) const {
TPCMap::const_iterator p = m_targetPhraseCollections.find(sourceLHS);
if (p != m_targetPhraseCollections.end())
return p->second;
else
return TargetPhraseCollection::shared_ptr();
}
// FIXME IS there any reason to distinguish these two for T2S?
const SymbolMap &GetTerminalMap() const {
return m_sourceTermMap;
}
const SymbolMap &GetNonTerminalMap() const {
return m_nonTermMap;
}
private:
SymbolMap m_sourceTermMap;
SymbolMap m_nonTermMap;
TPCMap m_targetPhraseCollections;
};
RuleTrie(const RuleTableFF *ff) : RuleTable(ff) {}
const Node &GetRootNode() const {
return m_root;
}
private:
friend class RuleTrieCreator;
TargetPhraseCollection::shared_ptr
GetOrCreateTargetPhraseCollection
(const Word &sourceLHS, const Phrase &sourceRHS);
Node &GetOrCreateNode(const Phrase &sourceRHS);
void SortAndPrune(std::size_t);
Node m_root;
};
} // namespace T2S
} // namespace Syntax
} // namespace Moses
|