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Diffstat (limited to 'fuzzylite/src/rule/Expression.cpp')
-rw-r--r-- | fuzzylite/src/rule/Expression.cpp | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/fuzzylite/src/rule/Expression.cpp b/fuzzylite/src/rule/Expression.cpp new file mode 100644 index 0000000..9b0ab81 --- /dev/null +++ b/fuzzylite/src/rule/Expression.cpp @@ -0,0 +1,83 @@ +/* + fuzzylite (R), a fuzzy logic control library in C++. + Copyright (C) 2010-2017 FuzzyLite Limited. All rights reserved. + Author: Juan Rada-Vilela, Ph.D. <jcrada@fuzzylite.com> + + This file is part of fuzzylite. + + fuzzylite is free software: you can redistribute it and/or modify it under + the terms of the FuzzyLite License included with the software. + + You should have received a copy of the FuzzyLite License along with + fuzzylite. If not, see <http://www.fuzzylite.com/license/>. + + fuzzylite is a registered trademark of FuzzyLite Limited. + */ + +#include "fl/rule/Expression.h" + +#include "fl/hedge/Hedge.h" +#include "fl/term/Term.h" +#include "fl/rule/Rule.h" +#include "fl/variable/Variable.h" + +namespace fl { + + Expression::Expression() { } + + Expression::~Expression() { } + + Proposition::Proposition() : Expression(), + variable(fl::null), term(fl::null) { } + + Proposition::~Proposition() { + for (std::size_t i = 0; i < hedges.size(); ++i) { + delete hedges.at(i); + } + hedges.clear(); + } + + Expression::Type Proposition::type() const { + return Expression::Proposition; + } + + std::string Proposition::toString() const { + std::ostringstream ss; + if (variable) { + ss << variable->getName(); + } else { + ss << "?"; + } + if (not hedges.empty()) { + ss << " " << Rule::isKeyword() << " "; + for (std::size_t i = 0; i < hedges.size(); ++i) { + ss << hedges.at(i)->name() << " "; + } + } + + if (term) { //term is fl::null if hedge is any + if (hedges.empty()) { + ss << " " << Rule::isKeyword() << " "; + } + ss << term->getName(); + } + return ss.str(); + } + + Operator::Operator() : Expression(), + name(""), left(fl::null), right(fl::null) { } + + Operator::~Operator() { + if (left) delete left; + if (right) delete right; + } + + Expression::Type Operator::type() const { + return Expression::Operator; + } + + std::string Operator::toString() const { + return name; + } + +} |