105 lines
3.4 KiB
C++
105 lines
3.4 KiB
C++
//
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// Bigram.h
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//
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// Copyright (c) 2007-2010 Lukhnos D. Liu (http://lukhnos.org)
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//
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// Permission is hereby granted, free of charge, to any person
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// obtaining a copy of this software and associated documentation
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// files (the "Software"), to deal in the Software without
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// restriction, including without limitation the rights to use,
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// copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following
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// conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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// OTHER DEALINGS IN THE SOFTWARE.
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//
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#ifndef Bigram_h
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#define Bigram_h
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#include "KeyValuePair.h"
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namespace Formosa {
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namespace Gramambular {
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class Bigram {
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public:
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Bigram();
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KeyValuePair preceedingKeyValue;
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KeyValuePair keyValue;
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double score;
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bool operator==(const Bigram& inAnother) const;
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bool operator<(const Bigram& inAnother) const;
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};
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inline ostream& operator<<(ostream& inStream, const Bigram& inGram)
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{
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streamsize p = inStream.precision();
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inStream.precision(6);
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inStream << "(" << inGram.keyValue << "|" <<inGram.preceedingKeyValue << "," << inGram.score << ")";
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inStream.precision(p);
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return inStream;
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}
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inline ostream& operator<<(ostream& inStream, const vector<Bigram>& inGrams)
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{
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inStream << "[" << inGrams.size() << "]=>{";
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size_t index = 0;
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for (vector<Bigram>::const_iterator gi = inGrams.begin() ; gi != inGrams.end() ; ++gi, ++index) {
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inStream << index << "=>";
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inStream << *gi;
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if (gi + 1 != inGrams.end()) {
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inStream << ",";
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}
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}
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inStream << "}";
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return inStream;
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}
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inline Bigram::Bigram()
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: score(0.0)
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{
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}
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inline bool Bigram::operator==(const Bigram& inAnother) const
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{
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return preceedingKeyValue == inAnother.preceedingKeyValue && keyValue == inAnother.keyValue && score == inAnother.score;
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}
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inline bool Bigram::operator<(const Bigram& inAnother) const
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{
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if (preceedingKeyValue < inAnother.preceedingKeyValue) {
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return true;
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}
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else if (preceedingKeyValue == inAnother.preceedingKeyValue) {
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if (keyValue < inAnother.keyValue) {
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return true;
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}
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else if (keyValue == inAnother.keyValue) {
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return score < inAnother.score;
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}
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return false;
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}
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return false;
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}
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}
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}
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#endif
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