226 lines
5.3 KiB
C++
226 lines
5.3 KiB
C++
/*
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* This file is a part of TTCalc - a mathematical calculator
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* and is distributed under the (new) BSD licence.
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* Author: Tomasz Sowa <t.sowa@slimaczek.pl>
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*/
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/*
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* Copyright (c) 2006-2007, Tomasz Sowa
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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 are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* * 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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* * Neither the name Tomasz Sowa nor the names of contributors to this
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* project may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "compileconfig.h"
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#include "parsermanager.h"
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ParserManager::ParserManager() : buffer_len(2048)
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{
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buffer = 0;
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base_input = base_output = 10;
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always_scientific = 0;
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when_scientific = 15;
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rounding = -2;
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}
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ParserManager::ParserManager(const ParserManager & p) : buffer_len(p.buffer_len)
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{
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buffer = 0;
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base_input = p.base_input;
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base_output = p.base_output;
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always_scientific = p.always_scientific;
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when_scientific = p.when_scientific;
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rounding = p.rounding;
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}
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ParserManager & ParserManager::operator=(const ParserManager & p)
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{
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buffer = 0;
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return *this;
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}
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ParserManager::~ParserManager()
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{
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delete [] buffer;
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}
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ttmath::ErrorCode ParserManager::GetLastCode()
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{
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return code;
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}
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ttmath::ErrorCode ParserManager::Parse()
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{
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try
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{
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#ifndef TTCALC_PORTABLE
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switch( precision )
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{
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case 0:
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parser1.SetBase(base_input);
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code = parser1.Parse(buffer);
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break;
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case 1:
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parser2.SetBase(base_input);
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code = parser2.Parse(buffer);
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break;
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default:
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parser3.SetBase(base_input);
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code = parser3.Parse(buffer);
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break;
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}
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#else
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parser1.SetBase(base_input);
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code = parser1.Parse(buffer);
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#endif
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}
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catch(...)
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{
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// we are in a thread, we shouldn't go up
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code = ttmath::err_internal_error;
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}
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return code;
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}
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void ParserManager::MakeCopyOfVariables()
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{
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unsigned int i;
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char * pchar = (char*)GetPrgRes()->GetBuffer();
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for(i = 0 ; i<buffer_len-1 && pchar[i]!=0 ; ++i)
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buffer[i] = pchar[i];
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buffer[i] = 0;
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//
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variables = *GetPrgRes()->GetVariables();
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functions = *GetPrgRes()->GetFunctions();
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//
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base_input = GetPrgRes()->GetBaseInput();
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base_output = GetPrgRes()->GetBaseOutput();
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always_scientific = GetPrgRes()->GetDisplayAlwaysScientific();
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when_scientific = GetPrgRes()->GetDisplayWhenScientific();
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rounding = GetPrgRes()->GetDisplayRounding();
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precision = GetPrgRes()->GetPrecision();
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country = GetPrgRes()->GetLanguages()->GetCurrentLanguage();
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}
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void ParserManager::Init()
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{
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buffer = new char[buffer_len];
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buffer[0] = 0;
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parser1.SetStopObject( GetPrgRes()->GetThreadController()->GetStopObject() );
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parser1.SetVariables( &variables );
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parser1.SetFunctions( &functions );
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#ifndef TTCALC_PORTABLE
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parser2.SetStopObject( GetPrgRes()->GetThreadController()->GetStopObject() );
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parser2.SetVariables( &variables );
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parser2.SetFunctions( &functions );
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parser3.SetStopObject( GetPrgRes()->GetThreadController()->GetStopObject() );
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parser3.SetVariables( &variables );
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parser3.SetFunctions( &functions );
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#endif
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}
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void ParserManager::PrintResult()
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{
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if( code == ttmath::err_ok )
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{
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#ifndef TTCALC_PORTABLE
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switch( precision )
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{
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case 0:
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return PrintResult(parser1);
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case 1:
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return PrintResult(parser2);
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default:
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return PrintResult(parser3);
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}
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#else
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return PrintResult(parser1);
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#endif
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}
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else
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{
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// we can call GetPrgRes() here because we're reading
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// static value like GetMainWindow() which are set only once
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// at the beginning of the program and will never be changed later
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// by the first thread
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// note that we're using a long form of a method ErrorMessage i.g.
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// ErrorMessage(Country country, ttmath::ErrorCode code)
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// and not ErrorMessage(ttmath::ErrorCode code)
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// because someone can change the country when we're calling this method
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// (in the main thread) and the latter function would be using its own
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// 'current_country' value which could be inconsistent
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// now, displying an error message is making in the main windows
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// (after pressing a special key)
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/*
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SetDlgItemText(
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GetPrgRes()->GetMainWindow(),
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IDC_OUTPUT_EDIT,
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GetPrgRes()->GetLanguages()->ErrorMessage(country, code) );
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*/
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}
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}
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