MethodsDevelopmentTranslator/SyntaxAnalisator.cpp at master · StrongerProgrammer7/MethodsDevelopmentTranslator · GitHub

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#include"SyntaxAnalisator.h"
#include"function.h"

SyntaxAnalisator::SyntaxAnalisator()
{
}


SyntaxAnalisator::~SyntaxAnalisator()
{
}

int numberString = 0;

boolisIdentifierByCode(std::string token)
{
return token[0] == 'I' && isDigit((int)token[1]) == true ? true : false;
}

boolisOperationByCode(std::string token)
{
return token[0] == 'O' && isDigit((int)token[1]) == true ? true : false;
}

boolisSymbolConst(std::string token)
{
return token[0] == 'C' && isDigit((int)token[1]) == true ? true : false;
}

boolisNumberConstByCode(std::string token)
{
return token[0] == 'N' && isDigit((int)token[1]) == true ? true : false;
}


//std::string SyntaxAnalisator::readFromFileToString()
//{
//	std::string code = "";
//	try
//	{
// std::ifstream lexicalFile("./translator_file/lexical.txt");
// if (lexicalFile.is_open())
// {
// std::string temp = "";
// while (!lexicalFile.eof())
// {
// temp = "";
// getline(lexicalFile, temp);
// if (isSpaceInEndString(temp) == true)
// temp.replace(temp.rfind(" "), 1, "");
//
// for (__int64 i = 0; i < temp.length(); i++)
// {
// if (isServiceSymbols((int)temp[i]) == false)
// code += temp[i];
// }
// code += " ";
//
// }
// return code;
// }
// else
// {
// System::Windows::Forms::MessageBox::Show("File don't open", "Error", System::Windows::Forms::MessageBoxButtons::OK, System::Windows::Forms::MessageBoxIcon::Error);
// }
//	}
//	catch (const std::exception&)
//	{
// System::Windows::Forms::MessageBox::Show("Problem with file to Syntaxanalisator", "Error",System::Windows::Forms::MessageBoxButtons::OK, System::Windows::Forms::MessageBoxIcon::Error);
//	}
//
//}

std::string getToken(std::string& line)
{
	std::string token = "";
	__int64 pos = line.find('');
if (pos == std::string::npos)
	{
 token = line.substr(0, line.length());
 line = "";
	}
else
	{
 token = line.substr(0, pos);
 line.erase(0, pos + 1);
	}
return token;
}


boolSyntaxAnalisator::makeSyntaxAnalyze()
{
try
	{
 numberString = 0;
 std::ifstream lexicalFile("./translator_file/lexical.txt");
if (lexicalFile.is_open())
 {
 std::string temp = "";
int countInclude = 0, countFunction = 0;

bool isDeclareFunction = false, isCycle = false, isIFElse = false, manyLineComment = false, mainFunctionChecked = false;
while (!lexicalFile.eof())
 {
 std::string code = "";
getline(lexicalFile, code);
 numberString++;
if (code == "")
continue;

if (code.length() > 2 && isComment((int)code[0], (int)code[1]) && code.find("*/") == std::string::npos)
 manyLineComment = true;

if (code.length() > 2 && (isComment((int)code[0], (int)code[1]) || isOneStringComment((int)code[0], (int)code[1])))
continue;

if (manyLineComment == true)
 {
if (code.find("*/") != std::string::npos)
 manyLineComment = false;
continue;
 }

if (code.find("W8") == 0)
 {
if (countInclude < this->countInclude)
 countInclude++;
else
 {
problemDetected("Detected #include excess!\n line:" + std::to_string(numberString));
returnfalse;
 }
continue;
 }
if (code.find("W11") == 0)
 {
checkReturnExpression(code);
continue;
 }
if (code.find("W20") == 0)
 {
 code.erase(0, 7);
if (isIdentifierByCode(code.substr(0, code.find(""))) == false)
 {
problemDetected("Method free accepts only identifier! \nline:" + std::to_string(numberString));
returnfalse;
 }
 code.erase(0, code.find("")+1);
if (code.find("I") != std::string::npos)
 {
problemDetected("Methods free accepts only one argument!\n line:" + std::to_string(numberString));
returnfalse;
 }
continue;
 }

if (code.find("W4") != std::string::npos && mainFunctionChecked == false)
 {
 mainFunctionChecked = true;
 countFunction++;
 isDeclareFunction = true;
if (declareMainFunction(code) == false)
 {
problemDetected("Problem with declare main function!\nline:" + std::to_string(numberString));
returnfalse;
 }
continue;
 }
else
if (code.find("W4") != std::string::npos)
 {
problemDetected("Detected excess main function!\n line:" + std::to_string(numberString));
returnfalse;
 }

if (code.find("R5") == 0)
 {
if (isDeclareFunction == false && isCycle == false && isIFElse == false)
 {
problemDetected("Detected excess figure brackets!\n line: " + std::to_string(numberString));
returnfalse;
 }
if (isDeclareFunction == true)
 {
 isDeclareFunction = false;
if (countFunction > this->countFunction)
 {
problemDetected("Detected excess function!\n line: " + std::to_string(numberString) +" all: " + std::to_string(this->countFunction) + " detected: " + std::to_string(countFunction));
returnfalse;
 }
 }

if (isCycle == true)
 isCycle = false;
if (isIFElse == true)
 isIFElse = false;
continue;
 }

if (code.find("R6") == 0)
continue;
 __int64 pos = 0;
 std::string token = "";


while ((pos = code.find('')) != std::string::npos || code.length() != 0)
 {
 token = getToken(code);

if (isInclude(token) == true || token == "W9" || token == "W10")
 {
problemDetected("Detected don't right declare/use function !\n line:" + std::to_string(numberString));
returnfalse;
 }

if ((isTypeDeclarationByCode(token) == true || token=="W13") && is_declareFunction(code) == true)
 {
 countFunction++;
 isDeclareFunction = true;
 token = code.substr(0, 2);
 code.erase(0, 3);
if (isIdentifierByCode(token) == true)
 {
if (setArguments(code) == true)
 {
continue;
 }
else
returnfalse;
 }
else
 {
problemDetected("It is not identifier!\n line: " + std::to_string(numberString));
returnfalse;
 }
 }

if (isTypeDeclarationByCode(token)==true && (code[0] == 'I' || code[0] == 'R'))
 {
if (operators(code, "type") == false)
returnfalse;
 }
else
 {
if (isIFCondition(token) == true || token == "W7" == true || isELSECondition(token)==true)
 {
if (operators(code, "condition") == false)
returnfalse;
if (isIFCondition(token) == true || isELSECondition(token) == true)
 isIFElse = true;
if (token == "W7")
 isCycle = true;
continue;
 }
if (token == "W12")
 {
if (operators(code, "for") == false)
returnfalse;
 isCycle = true;
continue;
 }
if (isIdentifierByCode(token) == true)
 {
if (operators(code, "Id") == false)
returnfalse;
if (isIFElse == true)
 isIFElse = false;
if (isCycle == true)
 isCycle = false;
continue;
 }
else
 {
problemDetected("Detected unidentified symbol!\nline: " + std::to_string(numberString));
returnfalse;
 }
 }
 }
 }
returntrue;
 }
else
 {
problemDetected("File don't open");
returnfalse;
 }
	}
catch (const std::exception&)
	{
System::Windows::Forms::MessageBox::Show("Problem with file to Syntaxanalisator", "Error",System::Windows::Forms::MessageBoxButtons::OK, System::Windows::Forms::MessageBoxIcon::Error);
	}


}

boolSyntaxAnalisator::declareMainFunction(std::string& main)
{
	std::string token = getToken(main);
if (isTypeDeclarationByCode(token) == false)
returnfalse;
	main.erase(0, 3);
if (setArguments(main) == false)
returnfalse;
returntrue;

}


boolSyntaxAnalisator::setArguments(std::string& code)
{
	__int64 pos = 0;
	std::string fragment = code.substr(0, code.find("R4"));
	code.erase(0, code.find("R4") + 3);
bool type_ident = false;
while ((pos = fragment.find('')) != std::string::npos || fragment.length() != 0)
	{
 std::string token = getToken(fragment);
if (token == "")
continue;
if (token.length() < 2)
 {
problemDetected("Detected unindefined symbol (setArguments): " + token +"\nline: " + std::to_string(numberString));
returnfalse;
 }
if (token == "W19")
 token += "" + getToken(fragment);

if (token == "R8")
continue;
if (token == "R1")
 {
 std::string temp = fragment.substr(0, fragment.find("R2") - 1);
if (operatorDeclareData(temp) == false)
returnfalse;

 fragment.erase(0, fragment.find("R2") + 2);
continue;
 }
if (isTypeDeclarationByCode(token) == true && type_ident == false)
 {
 type_ident = true;
continue;
 }
else
if (isTypeDeclarationByCode(token) == true)
 {
problemDetected("Expected identifer, but get type!\n line: " + std::to_string(numberString));
returnfalse;
 }

if (isIdentifierByCode(token)==true && type_ident == true)
 {
 type_ident = false;
continue;
 }
else
if (isIdentifierByCode(token)==true)
 {
problemDetected("Expected type, but get identifier!\n line: " + std::to_string(numberString));
returnfalse;
 }
	}
returntrue;
}

boolSyntaxAnalisator::is_declareFunction(std::string code)
{
	__int64 pos = 0;
int countSpace = 0;
while ((pos = code.find('')) != std::string::npos || code.length() != 0)
	{
 std::string token = code.substr(0, pos);
 code.erase(0, pos + 1);
 countSpace++;
if (token == "R3" && countSpace > 3)
returnfalse;
else
if (token == "R3" && countSpace == 2)
returntrue;
if (countSpace > 3)
returnfalse;
	}
returnfalse;
}


boolSyntaxAnalisator::operators(std::string& code, std::string token)
{
	__int64 pos = 0;
if (token == "type")
returnoperatorDeclareData(code);
if (token == "Id")
returnoperatorEqual(code);
if (token == "condition")
returnoperatorCondition(code);
if (token == "for")
returnoperatorFor(code);
returnfalse;

}

boolSyntaxAnalisator::operatorCondition(std::string& code)
{
	code.erase(0, 3);
if (parseExpression(code, true) == false)
returnfalse;
returntrue;
}

boolSyntaxAnalisator::operatorFor(std::string& code)
{
	code.erase(0, 3);
	std::string temp = "";
if (isTypeDeclarationByCode(code.substr(0, code.find(""))) == true)
	{
 code.erase(0, code.find("")+1);
 temp = code.substr(0, code.find("R7") + 2);
 code.erase(0, code.find("R7") + 3);
if (operatorEqual(temp) == false)
returnfalse;
	}
else
	{
problemDetected("Expected type, but get "+ code.substr(0, code.find("")) +"!\n line: " + std::to_string(numberString));
returnfalse;
	}
	temp = code.substr(0, code.find("R7") + 2);
	code.erase(0, code.find("R7") + 3);
if (parseExpression(temp, true) == false)
returnfalse;
	temp = code.substr(0, code.find("R4")-1);
	code = "";
if (operatorEqual(temp) == false)
returnfalse;

returntrue;
}

boolSyntaxAnalisator::operatorDeclareData(std::string& code)
{
if (code.find("O5") != std::string::npos)
if (operatorEqual(code) == false)
returnfalse;
else
returntrue;

	__int64 pos = 0;
	std::string token = "";
bool ident_comma = false;
while ((pos = code.find('')) != std::string::npos || code.length() != 0)
	{
 token = getToken(code);
if (token == "")
continue;
if (token.length() < 2)
 {
problemDetected("Detected unindefined symbol (operatorDeclareData): " + token + "\nline: " + std::to_string(numberString));
returnfalse;
 }
if (token == "R7" && ident_comma == true)
break;
else
if (token == "R7")
 {
problemDetected("Before similcon detected ','!\n line: " + std::to_string(numberString));
returnfalse;
 }

if (isIdentifierByCode(token) == true && ident_comma == false)
 {
 ident_comma = true;
continue;
 }
else
if (isIdentifierByCode(token) == true)
 {
problemDetected("Expected ',', but get type !\n line: " + std::to_string(numberString));
returnfalse;
 }

if (token == "R8" && ident_comma == true)
 {
 ident_comma = false;
continue;
 }
else
if (token == "R8")
 {
problemDetected("Expected type, but get ',' !\n line: " + std::to_string(numberString));
returnfalse;
 }

	}
returntrue;

}

boolSyntaxAnalisator::operatorEqual(std::string& code)
{
	__int64 pos = 0;
	std::string token = "";

while ((pos = code.find('')) != std::string::npos || code.length() != 0)
	{
 std::string fragmentBeforeComma = "";
 __int64 posComma = code.find("R8");
if (posComma != std::string::npos && code.find("O5", posComma) != std::string::npos)
 {
 fragmentBeforeComma = code.substr(0, posComma);
 code.erase(0, posComma + 1);
if(parseExpression(fragmentBeforeComma,false)==false)
returnfalse;

if (isTypeDeclarationByCode(code.substr(0, code.find(""))) == true || isOperationByCode(code.substr(0, code.find(""))) == true || isSymbolConst(code.substr(0, code.find(""))) == true
 || isCloseAnyBracket(code.substr(0, 2)) == true || isOpenAnyBracket(code.substr(0, 2)) == true)
 {
problemDetected("Get " + code.substr(0, code.find("")) + " expected identifier\nline: " + std::to_string(numberString));
returnfalse;
 }
continue;
 }

if (parseExpression(code, false) == false)
returnfalse;
else
returntrue;


	}
returntrue;
}

voidpushStackAndPop(std::stack<std::string>& stack,std::string token)
{
	stack.pop();
	stack.push(token);
}

boolSyntaxAnalisator::parseExpression(std::string& fragment,bool condition)
{
	std::stack<std::string> temp_stack;
	__int64 pos = 0;
	std::string token = "";
//<typeFunction> (*pFunction)(<type_arg>) = NULL;
//pFunction = &isIdentifierByCode;
//arg function -> <typeFunction> (*pFunction)(<type_arg>)
while ((pos = fragment.find('')) != std::string::npos || fragment.length() != 0)
	{
 token = getToken(fragment);
if (token == "")
continue;
if (token.length() < 2)
 {
problemDetected("Detected unindefined symbol (expression): " + token + "\nline: " + std::to_string(numberString));
returnfalse;
 }
if (token == "R1")
 {
 std::string temp = fragment.substr(0, fragment.find("R2") - 1);
if (operatorDeclareData(temp) == false)
returnfalse;

 fragment.erase(0, fragment.find("R2") + 2);
continue;
 }
if (temp_stack.size() == 0)
 {
if (condition == true && (token[0]=='I' || token[0]=='N' || token[0]=='C'))
 temp_stack.push(token);
else
if (condition == true)
 {
problemDetected("It is if/while/else expected next I_/N_/C_, but get: " + token + "\nline: " + std::to_string(numberString));
returnfalse;
 }
else
 temp_stack.push(token);
continue;
 }
if (token == "R7" && condition == false)
 {
if (isOperationByCode(temp_stack.top()) == true && (temp_stack.top()!= "O20" && temp_stack.top() != "O19"))
 {
problemDetected("Before ; get: " + temp_stack.top() + "\nline: " + std::to_string(numberString));
returnfalse;
 }
returntrue;
 }
if (condition == true && token == "R4" && fragment.length() == 0)
returntrue;
if (condition == true)
 {
if (breachOfCodition(token,temp_stack)==true)
 {
problemDetected("It is if/while/else expected in stack I_/N_/C_, but get: " + temp_stack.top() + "\nline: " + std::to_string(numberString));
returnfalse;
 }

 }
else
 {
 std::string nextCode = fragment.substr(0, fragment.find(""));
if (nextCode != "R7")
 {
if (breachOfExpressionWithNumberConst(token, temp_stack, nextCode) == true )
 {
problemDetected("there is problem with expression " + token + " expected operation, but get: before " + temp_stack.top() + "/ after " + nextCode + "\nline: " + std::to_string(numberString));
returnfalse;
 }
 }

 }


if (isOpenAnyBracket(token) == true && isCloseAnyBracket(temp_stack.top()) == false)
 {
pushStackAndPop(temp_stack, token);
continue;
 }
else
if (isOpenAnyBracket(token) == true)
 {
problemDetected("Detected )(\nline: " + std::to_string(numberString));
returnfalse;
 }

if (isCloseAnyBracket(token) == true && temp_stack.top() != "R7")
 {
pushStackAndPop(temp_stack, token);
continue;
 }
else
if (isCloseAnyBracket(token) == true)
 {
problemDetected("Detected ;) in expression: \nline: " + std::to_string(numberString));
returnfalse;
 }


if (isRepeatWordByCode(&isIdentifierByCode, temp_stack, token) == 0)
returnfalse;
else
 {
if (isRepeatWordByCode(&isNumberConstByCode, temp_stack, token) == 0)
returnfalse;
else
 {
if (isRepeatWordByCode(&isSymbolConst, temp_stack, token) == 0)
returnfalse;
else
 {
if (isRepeatWordByCode(&isOperationByCode, temp_stack, token) == 0)
returnfalse;
else
pushStackAndPop(temp_stack, token);
 }
 }
 }
if (positionTypeConversion(fragment) == 0)
 {
pushStackAndPop(temp_stack, fragment.substr(0, 2));
pushStackAndPop(temp_stack, fragment.substr(3, fragment.find("R4") - 2));
pushStackAndPop(temp_stack, fragment.substr(fragment.find("R4"), 2));
 fragment.erase(0, 10);
//token = getToken(fragment);
 }

	}

returntrue;
}

boolSyntaxAnalisator::breachOfCodition(std::string const& token,std::stack<std::string>const& temp_stack)
{
return (isOperationByCode(token) == true && (isIdentifierByCode(temp_stack.top()) == false && isNumberConstByCode(temp_stack.top()) == false && isSymbolConst(temp_stack.top()) == false && isCloseAnyBracket(temp_stack.top()) == false)) || ((isIdentifierByCode(token) == true || isNumberConstByCode(token) == true || isSymbolConst(token) == true) && isOperationByCode(temp_stack.top()) == false);
}
boolSyntaxAnalisator::breachOfExpressionWithNumberConst(std::string const& token, std::stack<std::string>const& temp_stack,std::string nextCommand)
{
bool isWordConst = (isNumberConstByCode(token) == true || isSymbolConst(token) == true);
if (isWordConst == false)
returnfalse;
if (temp_stack.top() == "R8" || nextCommand == "R8")
returnfalse;
bool operation_word = isOperationByCode(temp_stack.top()) == true;
bool word_operation = isOperationByCode(nextCommand) == true;
bool bracket_word = temp_stack.top() == "R3";
bool word_bracket = nextCommand == "R4";
bool breach = !((operation_word == true && word_operation == true) || (bracket_word == true && word_bracket == true));
return breach == true;
}

intSyntaxAnalisator::isRepeatWordByCode(bool (*pFunctWordByCode)(std::string), std::stack<std::string>& temp_stack, std::string token)
{
if ((*pFunctWordByCode)(token) == true && (*pFunctWordByCode)(temp_stack.top()) == true)
	{
problemDetected("Detected repeat word! "+token+ " stack: " + temp_stack.top() + "\nline:"+ std::to_string(numberString));
returnfalse;
	}
return1;
}

boolSyntaxAnalisator::checkReturnExpression(std::string& expr)
{
	expr.erase(0, 3);
if (parseExpression(expr,false) == false)
returnfalse;
returntrue;
}