71 lines
1.7 KiB
C
71 lines
1.7 KiB
C
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// Copyright (c) 1994 James Clark
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// See the file COPYING for copying permission.
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#ifndef TrieBuilder_INCLUDED
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#define TrieBuilder_INCLUDED 1
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#ifdef __GNUG__
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#pragma interface
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#endif
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#include "types.h"
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#include "StringOf.h"
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#include "Owner.h"
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#include "Trie.h"
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#include "Vector.h"
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#ifdef SP_NAMESPACE
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namespace SP_NAMESPACE {
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#endif
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class TrieBuilder {
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public:
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typedef Vector<Token> TokenVector;
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TrieBuilder(int nCodes);
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void recognize(const String<EquivCode> &chars,
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Token t,
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Priority::Type pri,
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TokenVector &ambiguities);
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void recognize(const String<EquivCode> &chars,
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const String<EquivCode> &set,
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Token t,
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Priority::Type pri,
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TokenVector &ambiguities);
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// recognize a delimiter with a blank sequence
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void recognizeB(const String<EquivCode> &chars,
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int bSequenceLength, // >= 1
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size_t maxBlankSequenceLength,
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const String<EquivCode> &blankCodes,
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const String<EquivCode> &chars2,
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Token t,
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TokenVector &ambiguities);
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void recognizeEE(EquivCode code, Token t);
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Trie *extractTrie() { return root_.extract(); }
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private:
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TrieBuilder(const TrieBuilder &); // undefined
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void operator=(const TrieBuilder &); // undefined
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void doB(Trie *trie,
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int tokenLength,
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int minBLength,
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size_t maxLength,
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const String<EquivCode> &blankCodes,
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const String<EquivCode> &chars2,
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Token token,
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Priority::Type pri,
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TokenVector &ambiguities);
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Trie *extendTrie(Trie *, const String<EquivCode> &);
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void setToken(Trie *trie, int tokenLength, Token token, Priority::Type pri,
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TokenVector &ambiguities);
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Trie *forceNext(Trie *trie, EquivCode);
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void copyInto(Trie *, const Trie *, int);
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int nCodes_;
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Owner<Trie> root_;
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};
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#ifdef SP_NAMESPACE
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}
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#endif
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#endif /* not TrieBuilder_INCLUDED */
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