mirror of https://gitlab.com/rnger/amath
141 lines
3.5 KiB
C++
141 lines
3.5 KiB
C++
/*-
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* Copyright (c) 2014-2017 Carsten Sonne Larsen <cs@innolan.net>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Project homepage:
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* https://amath.innolan.net
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*
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*/
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#include "amath.h"
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#include "amathc.h"
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#include "userfunction.h"
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UserFunction::UserFunction(const char* name, const char* variable, ExpressionNode* expression)
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{
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AllocAndCopy(&this->name, name);
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this->variable = new Variable(variable);
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this->expression = expression;
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this->Next = nullptr;
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defname = new CharBuffer();
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definition = new CharBuffer();
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InitializeTexts();
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chainDelete = true;
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}
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UserFunction::UserFunction(const char* name)
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{
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AllocAndCopy(&this->name, name);
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this->variable = nullptr;
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this->expression = nullptr;
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this->Next = nullptr;
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defname = new CharBuffer();
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definition = new CharBuffer();
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chainDelete = true;
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}
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UserFunction::~UserFunction()
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{
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delete [] name;
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delete defname;
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delete definition;
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if (variable != nullptr)
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{
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delete variable;
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}
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if (expression != nullptr)
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{
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delete expression;
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}
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if (chainDelete && Next != nullptr)
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{
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delete Next;
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}
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}
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void UserFunction::InitializeTexts() const
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{
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defname->Empty();
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defname->Append(name);
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defname->Append('(');
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defname->Append(variable != nullptr ? variable->GetName() : EMPTYSTRING);
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defname->Append(')');
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definition->Empty();
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definition->Append(defname->GetString());
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definition->Append('=');
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definition->Append(expression != nullptr ? expression->GetText() : EMPTYSTRING);
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}
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char* UserFunction::GetName() const
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{
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return name;
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}
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char* UserFunction::GetDefinitionName() const
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{
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return defname->GetString();
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}
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char* UserFunction::GetDefinitionText() const
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{
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return definition->GetString();
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}
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Variable* UserFunction::GetVariable() const
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{
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return variable;
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}
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Variable* UserFunction::CreateVariable(const char* name)
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{
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if (variable != nullptr)
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{
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delete variable;
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}
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variable = new Variable(name);
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InitializeTexts();
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return variable;
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}
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ExpressionNode* UserFunction::GetExpression() const
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{
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return expression;
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}
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void UserFunction::SetExpression(ExpressionNode* expression)
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{
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delete this->expression;
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this->expression = expression;
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InitializeTexts();
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}
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