C++ Toker类代码示例

int main()
{
	std::cout << "-----------------------------------------------------------------------------------------------------\n";
	std::cout << "Requirement 1 -" << " " << " I have used Microsoft Visual Studio C++ Console Projects" << std::endl;
	std::cout << "-------------------------------------------------------------------------------------------------------\n";
	std::cout << "Requirement 2 -" << " " << " I have used <iostream> for all I/O and new and delete for heap based management " << std::endl;
	std::cout << "----------------------------------------------------------------------------------------------------------\n";
	std::cout << "Requirement 3 -" << " " << " I have provided Tokenzier Package, SemiExp package whose .ccp implements an interface named iTokCollection.h" << std::endl;
	std::cout << "------------------------------------------------------------------------------------------------------------\n";
	std::cout << "Requirement 4 -" << " " << "Tokenizing Test File into Alphanumeric, Punctuator, Special One Character, Special Two Character, C Style Comments, C++ Comments and Quoted Strings" << std::endl;
	std::cout << "-------------------------------------------------------------------------------------------------------------\n";
	Toker toker;
	int f = dealTokenizer(toker);
	toker.des();
	std::cout << "------------------------------------------------------------------------------------------\n";
	std::cout << "Requirement 5 - " << " " << "The getTok() method prodduces one token for each call to it" << std::endl;
	std::cout << "-------------------------------------------------------------------------------------------\n";
	std::cout << "Requirement 6 -" << " " << "SemiExp package produces set of tokens by repeatdely calling getTok() until we run into a termination condition " << std::endl;
	std::cout << "--------------------------------------------------------------------------------------------\n";
	std::cout << "Requirement 7 - " << " " << "SemiExpressions are terminated on },{,; and : public, :private and :protected " << std::endl;
	std::cout << "---------------------------------------------------------------------------------------------\n";
	std::cout << "Requirement 8 - " << " " << "Folding for" << std::endl;
	std::cout << "----------------------------------------------------------------------------------------------\n";
	std::cout << "Output for 5,6,7,8 with same input file passed to Tokennizer with the Comment toggle turned off" << std::endl;
	int g = dealSemiExpressions();
	std::cout << "\n------------------------------------------------------------------------------------------------\n";
	std::cout << "Requirement 9 -" << " " << " All the virtual methods in the iTokCollection interface have been implemented by the SemiExp Class " << std::endl;
	std::cout << "------------------------------------------------------------------------------------------------\n";
	std::cout << "Requirement 10 -" << " " << " TestExecutive which illustrates all possible test cases" << std::endl;
	std::cout << "---------------------------------------------------------------------------------------------------\n";
	std::cout << "Please enter any character to continue " << std::endl;

	std::getchar();
	
}

int dealSemiExpressions()
{
	Toker tok;
	std::string fileSpec1 = "../Tokenizer/test_tokenizer.txt";
	std::fstream inn(fileSpec1);
	if (!inn.good())
	{
		std::cout << "\n  can't open file " << fileSpec1 << "\n\n";
		return 1;
	}
	tok.attach(&inn);
	tok.setComments(false);
	tok.set("<,>,[,],(,),{,},:,=,+,-,*,\n", "<,<,>,>,:,:,+,+,-,-,=,=,+,=,-,=,*,=,/,=,-,>");
	SemiExp semi(&tok);
	semi.get();

	while (semi.get())
	{
		std::cout << "\n  -- semiExpression --";
		std::string str = semi.show();
		std::cout << str;
	}

	if (semi.length() > 0)
	{
		std::cout << "\n  -- semiExpression --";
		semi.show();
		std::cout << "\n\n";
	}
	return 0;
}

int testSemiExpOnCpp(std::string fileSpecSemi) {
	Toker tokercpp;
	std::fstream insemicpp(fileSpecSemi);
	if (!insemicpp.good())
	{
		std::cout << "\n  can't open file " << fileSpecSemi << "\n\n";
		return 1;
	}
	tokercpp.attach(&insemicpp);

	SemiExp semi(&tokercpp);
	while (semi.get())
	{
		std::cout << "\n  -- semiExpression --";
		semi.show();
	}

	if (semi.length() > 0)
	{
		std::cout << "\n  -- semiExpression --";
		semi.show();
		std::cout << "\n\n";
	}
	Toker::reset();
	return 0;
}

void CodeAnalyzer::AnalyzeFileDepedency(std::string file) {
	Toker toker;
	std::fstream in(file);
	// Check if the filename is valid
	if (!in.good())
	{
		std::cout << "\n can't open file " << file << "\n\n";
		return;
	}

	toker.attach(&in);
	do
	{
		std::string tok = toker.getTok();
		ProcessTok(file, tok);										// Check for match in Final Type Table and perform corresponding action
	} while (in.good());
}

///////////////////////////
// Main Test Stub function
int main()
{
	Timer time;
	time.StartClock();

	StringHelper::Title("\n Testing SemiExp class", '=');
	
	Toker toker;
	toker.setVerbose(true);
	std::string fileSpec = "SemiExp.cpp";

	std::fstream in(fileSpec);
	if (!in.good())
	{
		std::cout << "\n Unable to read file \"" << fileSpec << "\"\n\n";
		return 1;
	}
	else
	{
		std::cout << "\n Processing file \"" << fileSpec << "\"\n";
	}
	toker.attach(&in);

	SemiExp semi(&toker);
	semi.setVerbose(true);
	while (semi.get())
	{
		std::cout << "\n -- semiExpression -- at line number " << semi.currentLineCount();
		std::cout << semi.show();
	}
	/*
	May have collected tokens, but reached end of stream
	before finding SemiExp terminator.
	*/
	if (semi.length() > 0)
	{
		std::cout << "\n  -- semiExpression --";
		semi.show(true);
	}
	std::cout << "\n\n\n [Execution Time] : " << time.StopClock() << " ms";
	std::cout << "\n\n ";
	system("pause");
	return 0;
}

	int main1() {

		showInit();
		std::ifstream in(fileSpec);
		if (!in.good()) {
			std::cout << "\n  can't open " << fileSpec << "\n\n";
		}
		Toker toker;

		toker.attach(&in);
		std::ofstream myfile;
		tokenizerSetUp(toker);
		while (in.good()) {
			std::string* toks = toker.getToks();
			std::cout << "\n--" << toks[1];
			if (toks[1] != "NewLine") {
				std::cout << "\n" << toks[0];
			}
		}
		std::cout << "\n\n";

		///////////
		cout << "\n-------------------------Semi Exp------------------------";
		Toker toker1;
		std::string fileSpec1 = "/home/malz/workspace/new_workspace/testtok.cpp";
		std::fstream in1(fileSpec1);
		if (!in1.good()) {
			std::cout << "\n  can't open file " << fileSpec1 << "\n\n";
			return 1;
		}
		toker1.attach(&in1);
		SemiExp semi(&toker1);
		tokenizerSetUp(toker1);
		while (semi.get1(true)) {
			std::cout << "\n  -- semiExpression --";
			cout<<semi.show1(true);
		}
		if (semi.length() > 0) {
			std::cout << "\n  -- semiExpression --";
			semi.show();
			std::cout << "\n\n";
		}
		return 0;
	}

int dealTokenizer(Toker& toker)
{
	std::cout << "Input for Tokenizer" << std::endl;
	std::string fileSpec = "../Tokenizer/test_tokenizer.txt";
	std::ifstream file("../Tokenizer/test_tokenizer.txt");

	std::string str;
	while (std::getline(file, str))
	{
		std::cout << str << std::endl;
	}

	std::cout << "-----------------------------------------------------------------------------------------\n";

	std::ifstream in(fileSpec);
	if (!in.good())
	{
		std::cout << "\n  can't open " << fileSpec << "\n\n";
		return 1;
	}
	
	toker.attach(&in);
	toker.setComments(true);
	toker.set("<,>,[,],(,),{,},:,=,+,-,*,\n", "<,<,>,>,:,:,+,+,-,-,=,=,+,=,-,=,*,=,/,=,-,>");
	std::cout << "OUPUT \n";
	do
	{
		std::string tok = toker.getTok();
		if (tok == "\n")
		{
			tok = "newline";
		
		}
		std::cout << "\n -- " << tok;
	 
	} while (in.good());
	std::cout << "\n";
	
	return 0;
}

int main()
{
  std::cout << "\n  Testing SemiExp class";
  std::cout << "\n =======================\n";

  Toker toker;
  //std::string fileSpec = "../Tokenizer/Tokenizer.cpp";
  std::string fileSpec = "SemiExp.cpp";

  std::fstream in(fileSpec);
  if (!in.good())
  {
    std::cout << "\n  can't open file " << fileSpec << "\n\n";
    return 1;
  }
  else
  {
    std::cout << "\n  processing file \"" << fileSpec << "\"\n";
  }
  toker.attach(&in);

  SemiExp semi(&toker);
  while(semi.get())
  {
    std::cout << "\n  -- semiExpression -- at line number " << semi.currentLineCount();
    std::cout << semi.show();
  }
  /*
     May have collected tokens, but reached end of stream
     before finding SemiExp terminator.
   */
  if (semi.length() > 0)
  {
    std::cout << "\n  -- semiExpression --";
    semi.show(true);
  }
  std::cout << "\n\n";
  return 0;
}

int main()
{
  //std::string fileSpec = "../Tokenizer/Tokenizer.cpp";
  //std::string fileSpec = "../Tokenizer/Tokenizer.h";
  std::string fileSpec = "../Tokenizer/Test.txt";

  std::ifstream in(fileSpec);
  if (!in.good())
  {
    std::cout << "\n  can't open " << fileSpec << "\n\n";
    return 1;
  }
  Toker toker;
  toker.attach(&in);
  while (in.good())
  {
    std::string tok = toker.getTok();
    if (tok == "\n")
      tok = "newline";
    std::cout << "\n -- " << tok;
  }
  std::cout << "\n\n";
  return 0;
}

int main()
{
	/*std::fstream fIn;
	fIn.open("C:\\Users\thzha_000\Desktop\finaltest.txt", std::ios::in);*/

	//Tokenizer testing
	std::string fileSpec = "../Tokenizer/test_R4.txt";

	std::cout << "---------------------------------------" << "\n";
	std::cout << "---------  Testing Tokenizer ----------" << "\n";
	std::cout << "---------------------------------------" << "\n";
	std::cout << "--------Operating authentic code-------" << "\n";
	std::cout << "Requirements 5 is well shown in this process" << "\n\n";

	std::ifstream in(fileSpec);
	if (!in.good())
	{
		std::cout << "\n  can't open " << fileSpec << "\n\n";
		return 1;
	}
	else
		std::cout << "\n Read file successfull!" << "\n";
	Toker toker;
	toker.attach(&in);
	do
	{
		std::string tok = toker.getTok();
		if (tok == "\n")
			tok = "newline";
		std::cout << "\n -- " << tok;
	} while (in.good());
	std::cout << "\n\n";

	toker.reset();


	// SemiExp testing
	Toker toker2;
	std::cout << "---------------------------------------" << "\n";
	std::cout << "------- Testing SemiExpression --------" << "\n";
	std::cout << "---------------------------------------" << "\n";
	std::cout << "--------Operating authentic code-------" << "\n\n";
	std::cout << "Requirements 6-8 is well shown in this process" << "\n\n";

	std::fstream in2(fileSpec);
	if (!in2.good())
	{
		std::cout << "\n  can't open file " << fileSpec << "\n\n";
		return 1;
	}
	else
		std::cout << "\n Read file successfull!" << "\n";
	toker2.attach(&in2);
	SemiExp semi(&toker2);
	while (semi.get())
	{
		std::cout << "\n  -------------- semiExpression --------------";
		semi.show();
	}

	/*
	May have collected tokens, but reached end of stream
	before finding SemiExp terminator.
	*/
	if (semi.length() > 0)
	{
		std::cout << "\n  -------------- semiExpression --------------";
		semi.show();
		std::cout << "\n\n";
	}

	toker2.reset();

	// Test Requirement 4 

	std::string fileSpec_R4 = "../Tokenizer/test_R4.txt";

	std::vector<std::string> alter_setSpecialSingleChar = { "=", "+" };
	std::vector<std::string> alter_setSpecialDoubleChar = { "++" , "--" };

	std::cout << "------------------- Requiement 4 ------------------" << "\n";
	std::cout << "---------------------------------------------------" << "\n";
	std::cout << "------Using a small piece of text for testing------" << "\n\n";
	Toker toker1;
	std::ifstream in1(fileSpec_R4);
	if (!in1.good())
	{
		std::cout << "\n  can't open " << fileSpec << "\n\n";
		return 1;
	}
	else
		std::cout << "\n Read file successfull!" << "\n";
	toker.attach(&in1);
	do
	{
		std::string tok = toker1.getTok();
		if (tok == "\n")
			tok = "newline";
		std::cout << "\n -- " << tok;
	} while (in1.good());
//.........这里部分代码省略.........

void main()
{
	try
	{
	std::stack<PNode<XMLValue>*> *nStack = new std::stack<PNode<XMLValue>*>;
	PNode<XMLValue>* rootnode = new PNode<XMLValue>(XMLValue(XMLValue::TAG,"Document"));
	XMLTree* xtree = new XMLTree(rootnode);
	ParserState* ps = new ParserState;
	
	Toker* pToker = new Toker;
	pToker->setMode(Toker::xml);          //XML parser mode
    XmlParts* pSemi = new XmlParts(pToker);
    Parser* pParser = new Parser(pSemi);

	ElementEnd* pElementendrule = new ElementEnd(nStack,ps);
	ElementStart* pElementstartrule = new ElementStart(nStack,ps);
	ElementSelfClosed* pElementselfcrule = new ElementSelfClosed(nStack,ps);
	Text* ptextrule = new Text(nStack,ps);
	Comment* pCommentrule = new Comment(nStack,ps);
	ProcInstr* pIinstrrule = new ProcInstr(nStack,ps);

	EndFound* pEndact = new EndFound(nStack,xtree);
	StartFound* pStartact = new StartFound(nStack,xtree);
	SelfClosedFound* pSelfClosedact = new SelfClosedFound(nStack,xtree);
	TextFound* pTextact = new TextFound(nStack,xtree);
	CommentFound* pCommentact = new CommentFound(nStack,xtree);
	ProcInstrFound* pInstract = new ProcInstrFound(nStack,xtree);
	
	pElementendrule->addAction(pEndact);
	pElementstartrule->addAction(pStartact);
	pElementselfcrule->addAction(pSelfClosedact);
	ptextrule->addAction(pTextact);
	pCommentrule->addAction(pCommentact);
	pIinstrrule->addAction(pInstract);
	
	pParser->addRule(pElementendrule);
	pParser->addRule(pElementstartrule);
	pParser->addRule(pElementselfcrule);
	pParser->addRule(ptextrule);
	pParser->addRule(pCommentrule);
	pParser->addRule(pIinstrrule);
	    

	nStack->push(rootnode);

	if(pParser)
    {
		if(! pToker->attach("..\\LectureNote.xml"))
        {
	      std::cout << "\n  could not open file "  << std::endl;
          return;
        }
     }

	while(pParser->next())
       pParser->parse();
	
	//display the tree and the rebuilt xml
	XMLDisplay disply(xtree);
	//generate the string of tree and rebuilt xml
	disply.buildTreeDisplay();
	disply.rebuildXML();
	//attach the output file to the display object
	disply.AttachFile("..\\output.txt");
	//display them
	std::cout<<"=======================Parser Tree====================="<<std::endl;
	std::cout<<disply.OutputTree();
	
      std::cout << "\n\n";

	std::cout<<"=====================Rebuild XML====================="<<std::endl;
	std::cout<<disply.OutputXML();
	
	delete pEndact;
	delete pStartact;
	delete pSelfClosedact;
	delete pTextact;
	delete pCommentact;
	delete pInstract;
	
	delete pElementendrule;
	delete pElementstartrule;
	delete pElementselfcrule;
	delete ptextrule;
	delete pCommentrule;
	delete pIinstrrule;

	delete pToker;
	delete pSemi;
	delete pParser;

	delete ps;
	delete nStack;
	
	xtree->remove(xtree->getroot());
	std::vector< PNode<XMLValue>* > deletednodes = xtree->getdeletednodes();
	for(size_t i = 0; i < deletednodes.size(); ++i)
		delete deletednodes[i];
	delete xtree;

//.........这里部分代码省略.........

int main(int argc, char* argv[])
{
	std::cout << "\n  Testing Tokenizer class\n "
		<< std::string(25, '=') << std::endl;
	std::cout
		<< "\n  Note that comments and quotes are returned as single tokens\n\n";

	// collecting tokens from a string

	Toker t_fromStr("tokens from a string: -> int x; /* a comment */", false);
	std::string tok;
	do
	{
		tok = t_fromStr.getTok();
		std::cout << "  " << tok;
	} while (tok != "");
	std::cout << "\n\n";

	// collecting tokens from files, named on the command line

	if (argc < 2)
	{
		std::cout
			<< "\n  please enter name of file to process on command line\n\n";
		return 1;
	}

	for (int i = 1; i<argc; ++i)
	{
		std::cout << "\n  Processing file " << argv[i];
		std::cout << "\n  " << std::string(16 + strlen(argv[i]), '-') << "\n";

		try
		{
			Toker t;
			t.setMode(Toker::xml);        // comment out to show tokenizing for code
			//    t.setSingleCharTokens("<>");  // will return same results as above for XML

			if (!t.attach(argv[i]))
			{
				std::cout << "\n    can't open file " << argv[i] << "\n\n";
				continue;
			}
			t.returnComments();  // remove this statement to discard comment tokens
			std::string temp;
			do
			{
				temp = t.getTok();
				std::cout << "  ln: " << t.lines() << ", br lev: "
					<< t.braceLevel() << ", tok size: " << std::setw(3) << temp.length() << " -- ";
				if (temp != "\n")
					std::cout << temp << std::endl;
				else
					std::cout << "newline\n";
			} while (temp != "");
		}
		catch (std::exception& ex)
		{
			std::cout << "  " << ex.what() << "\n\n";
		}
	}
}

int main()
{
	{
		Toker toker;
		//std::string fileSpec = "../Tokenizer/Tokenizer.cpp";
		//std::string fileSpec = "../../Tokenizer/test.txt";
		//std::string fileSpec = "../../SemiExp/SemiExp.h";
		std::string fileSpec = "../../Tokenizer/test_cases.txt";

		std::fstream in(fileSpec);
		if (!in.good())
		{
			std::cout << "\n  can't open file " << fileSpec << "\n\n";
			return 1;
		}

		std::cout << "\n File: " << fileSpec << "\n\n";
		toker.attach(&in);

		SemiExp semi(&toker);
		while (semi.get())
		{
			std::cout << "\n  -- semiExpression --";
			semi.show(true);
		}

		if (semi.length() > 0)
		{
			std::cout << "\n  -- semiExpression --";
			semi.show();
			std::cout << "\n\n";
		}
	}

	std::cout << "\n -----Testing ITokcollection functions -----------\n";
	try {

		Test::test0();

		Test::test1();

		Test::test2();

		Test::test3();

		Test::test4();

		Test::test5();

		Test::test6();

		Test::test7();

		Test::test8();

	}
	catch (std::exception& ex)
	{
		std::cout << "\n\n  " << ex.what() << "\n\n";
		return 1;
	}
	return 0;
}

int main()
{
  Helper::Title("Testing Tokenizer");

  //std::string fileSpec = "../Tokenizer/Tokenizer.cpp";
  //std::string fileSpec = "../Tokenizer/Tokenizer.h";
  std::string fileSpec = "../Tokenizer/Test.txt";//from here

  try
  {
    std::ifstream in(fileSpec);
    if (!in.good())
    {
      std::cout << "\n  can't open " << fileSpec << "\n\n";
      return 1;
    }

    {
      Toker toker;
      toker.returnComments();
      toker.attach(&in);
      std::cout << "\n  current line count = " << toker.currentLineCount();
      do
      {
        std::string tok = toker.getTok();
        if (tok == "\n")
          tok = "newline";
        std::cout << "\n -- " << tok;
      } while (in.good());
      std::cout << "\n  current line count = " << toker.currentLineCount();
    }
 
    putline();
    Helper::title("Testing change of special characters");
    std::string newSpecialChars = "., :, +, +=, \n { }";

    Toker toker;
    toker.returnComments();
    toker.setSpecialTokens(newSpecialChars);
    in.clear();

    in.seekg(std::ios::beg);
    toker.attach(&in);
    std::cout << "\n  new special tokens: " << newSpecialChars;
    do
    {
      std::string tok = toker.getTok();
      if (tok == "\n")
        tok = "newline";
      std::cout << "\n -- " << tok;//check if tok is in type table
    } while (in.good());// if there , get filename and say this file is dependent on this file
    std::cout << "\n  current line count = " << toker.currentLineCount();
  }
  catch (std::logic_error& ex)
  {
    std::cout << "\n  " << ex.what();
  }
  std::cout << "\n\n";//here
  return 0;
}

	void tokenizerSetUp(Toker& toker) {
		toker.setSpecialCharPairs("<<");
		toker.setSpecialCharPairs("<=");
		toker.setSpecialCharPairs(">=");
		toker.setSpecialCharPairs(">>");
		toker.setSpecialCharPairs("::");
		toker.setSpecialCharPairs("++");
		toker.setSpecialCharPairs("--");
		toker.setSpecialCharPairs("==");
		toker.setSpecialCharPairs("+=");
		toker.setSpecialCharPairs("-=");
		toker.setSpecialCharPairs("*=");
		toker.setSpecialCharPairs("/=");
		toker.setSpecialCharPairs("&&");
		toker.setSpecialSingleChars(">");
		toker.setSpecialSingleChars("<");
		toker.setSpecialSingleChars("[");
		toker.setSpecialSingleChars("]");
		toker.setSpecialSingleChars("(");
		toker.setSpecialSingleChars(")");
		toker.setSpecialSingleChars("{");
		toker.setSpecialSingleChars("}");
		toker.setSpecialSingleChars(":");
		toker.setSpecialSingleChars(";");
		toker.setSpecialSingleChars("=");
		toker.setSpecialSingleChars("+");
		toker.setSpecialSingleChars("-");
		toker.setSpecialSingleChars("*");
		toker.setSpecialSingleChars("\n");
		toker.setTokenTypesFlag("white_spaces");
		toker.setTokenTypesFlag("CppComment-Req4.5");
		toker.setTokenTypesFlag("C Comment-Req4.4");
		toker.setTokenTypesFlag("Punctuator-Req4");
		toker.setTokenTypesFlag("Punctuator-Req-4.2");
		toker.setTokenTypesFlag("character_single_quote_string_Req4.6");
		toker.setTokenTypesFlag("character string-Req4.6");
		toker.setTokenTypesFlag("character_double_quote_string_Req4.6");
		toker.setTokenTypesFlag("Special_two_characters_Req4.3");
		toker.setTokenTypesFlag("Special_Single_character_Req4.3");
		toker.setTokenTypesFlag("Alphanum_Req4");
		toker.setTokenTypesFlag(" ");
	}