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// Copyright (c) 2020 OPEN CASCADE SAS
//
// This file is part of the examples of the Open CASCADE Technology software library.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE
#include "BaseSample.h"
#include <iostream>
#include <regex>
#include <exception>
#include <stack>
#include <AIS_ViewCube.hxx>
#include <Message.hxx>
#include <OSD_File.hxx>
#include <OSD_Path.hxx>
#include <OSD_Protection.hxx>
#include <Standard_WarningsDisable.hxx>
#include <QDir>
#include <Standard_WarningsRestore.hxx>
const TCollection_AsciiString BaseSample::FILE_EXTENSION = "cxx";
void BaseSample::Clear()
{
myObject3d.Clear();
myObject2d.Clear();
myCode.Clear();
myResult.str("");
}
TCollection_AsciiString BaseSample::GetResult()
{
TCollection_AsciiString aResult(myResult.str().c_str());
myResult.str("");
return aResult;
}
void BaseSample::AppendCube()
{
Handle(AIS_ViewCube) aViewCube = new AIS_ViewCube();
myObject3d.Append(aViewCube);
}
void BaseSample::Process (const TCollection_AsciiString& theSampleName)
{
myObject3d.Clear();
myObject2d.Clear();
myCode.Clear();
myIsProcessed = Standard_False;
try
{
ExecuteSample(theSampleName);
if (!myObject3d.IsEmpty())
{
Handle(AIS_ViewCube) aViewCube = new AIS_ViewCube();
myObject3d.Append(aViewCube);
}
}
catch (...)
{
TraceError(TCollection_AsciiString("Error in sample: ") + theSampleName);
}
}
void BaseSample::TraceError (const TCollection_AsciiString& theErrorMessage)
{
Message::SendFail() << "\nERROR: " << theErrorMessage.ToCString() << std::endl;
myResult << "\nERROR: " << theErrorMessage << std::endl;
}
void BaseSample::FindSourceCode (const TCollection_AsciiString& theSampleName)
{
TCollection_AsciiString aClassName = DynamicType()->Name();
char aSeparator = QDir::separator().toLatin1();
TCollection_AsciiString aCxxFilePach = myCodePath + aSeparator + aClassName + '.' + FILE_EXTENSION;
OSD_File aCxxFile(aCxxFilePach);
try
{
const Standard_Integer aFileBufferSize = 100 * 1024;
TCollection_AsciiString aReadedText(aFileBufferSize);
aCxxFile.Open(OSD_ReadOnly, OSD_Protection());
aCxxFile.Read(aReadedText, aFileBufferSize);
TCollection_AsciiString aRegexpTemplate = aClassName + "::" + theSampleName + "[\\n\\s]*\\([\\n\\s]*\\)[\\n\\s]*\\{";
Standard_Integer aOpeningBracketPosition = findEndOfPhrase (aReadedText, aRegexpTemplate);
Standard_Integer aClosingBracketPosition = findClosingBracket (aReadedText, aOpeningBracketPosition, '}');
myCode = aReadedText.SubString(aOpeningBracketPosition + 1, aClosingBracketPosition - 1);
}
catch (...)
{
TraceError(TCollection_AsciiString("Cannot open file: ") + aCxxFilePach);
}
}
Standard_Integer BaseSample::findEndOfPhrase (const TCollection_AsciiString& theText,
const TCollection_AsciiString& theRegexpTemplate)
{
Standard_Integer aIndexOfLastFoundSymbol = -1;
std::string aStdText = theText.ToCString();
std::string aRegexpTemplate = theRegexpTemplate.ToCString();
try
{
std::regex aRegex(theRegexpTemplate.ToCString());
std::sregex_iterator aDetectIterator = std::sregex_iterator(aStdText.begin(), aStdText.end(), aRegex);
if (aDetectIterator != std::sregex_iterator())
{
std::smatch aMatch = *aDetectIterator;
std::string aFoundString = aMatch.str();
aIndexOfLastFoundSymbol = static_cast<Standard_Integer>(aStdText.find(aFoundString) + aFoundString.length());
}
else
{
TraceError(TCollection_AsciiString("No code found for template: ") + theRegexpTemplate);
}
}
catch (const std::regex_error& aRegError)
{
TraceError(TCollection_AsciiString("regex_error: ") + aRegError.what());
}
catch (const std::exception& aEx)
{
TraceError(TCollection_AsciiString("common error: ") + aEx.what());
}
catch (...)
{
TraceError("unknown error!");
}
return aIndexOfLastFoundSymbol;
}
Standard_Integer BaseSample::findClosingBracket (const TCollection_AsciiString& theText,
const Standard_Integer theOpeningBracketIndex,
Standard_Character theClosingBracketSymbol)
{
// TODO this function not implemented at least 2 cases:
// - brackets in strings & chars
// - brackets in comments
Standard_Integer aClosingBracketIndex = -1;
Standard_Character anOpeningBracketSymbol = theText.Value(theOpeningBracketIndex);
TCollection_AsciiString aBracketsSet(theClosingBracketSymbol);
aBracketsSet += anOpeningBracketSymbol;
Standard_Integer aBracketDepth = 1;
Standard_Integer aStartFindIndex = theOpeningBracketIndex + 1;
//Standard_Character aStartFindChar = theText.Value(aStartFindIndex-1);
while (aBracketDepth)
{
aStartFindIndex = theText.FirstLocationInSet(aBracketsSet, aStartFindIndex, theText.Length());
if (!aStartFindIndex)
{
TraceError("No closing bracket found!");
break;
}
TCollection_AsciiString aRSubstr = theText.SubString(aStartFindIndex, theText.Length());
if (theText.Value(aStartFindIndex) == anOpeningBracketSymbol)
aBracketDepth++;
else if (theText.Value(aStartFindIndex) == theClosingBracketSymbol)
aBracketDepth--;
if (!aBracketDepth)
{
aClosingBracketIndex = aStartFindIndex;
break;
}
aStartFindIndex++;
}
return aClosingBracketIndex;
}
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