muParserHandle_t InitCalc()
{
muParserHandle_t hParser = mupCreate(muBASETYPE_FLOAT); // initialize the parser
// Set an error handler [optional]
mupSetErrorHandler(hParser, OnError);
// Define postfix operators [optional]
mupDefinePostfixOprt(hParser, "!", Fact, 0);
// Define infix operator [optional]
mupDefineInfixOprt(hParser, "~", Not, 0);
// Define binary operators [optional]
mupDefineOprt(hParser, "%", Mod, 0, muOPRT_ASCT_LEFT, 0);
// Define functions [optional]
mupDefineFun2(hParser, "angle", Angle, 2);
mupDefineFun4(hParser, "pramp", PRamp, 4);
mupDefineFun4(hParser, "periodic1", Periodic1, 4);
mupDefineFun4(hParser, "periodic2", Periodic2, 4);
mupDefineFun3(hParser, "pulse", Pulse, 3);
return hParser;
}
//---------------------------------------------------------------------------
void Calc()
{
muChar_t szLine[100];
muFloat_t fVal = 0,
afVarVal[] = { 1, 2 }; // Values of the parser variables
muParserHandle_t hParser;
hParser = mupCreate(muBASETYPE_FLOAT); // initialize the parser
Intro(hParser);
// Set an error handler [optional]
// the only function that does not take a parser instance handle
mupSetErrorHandler(hParser, OnError);
//#define GERMAN_LOCALS
#ifdef GERMAN_LOCALS
mupSetArgSep(hParser, ';');
mupSetDecSep(hParser, ',');
mupSetThousandsSep(hParser, '.');
#else
mupSetArgSep(hParser, ',');
mupSetDecSep(hParser, '.');
#endif
// Set a variable factory
mupSetVarFactory(hParser, AddVariable, NULL);
// Define parser variables and bind them to C++ variables [optional]
mupDefineConst(hParser, "const1", 1);
mupDefineConst(hParser, "const2", 2);
mupDefineStrConst(hParser, "strBuf", "Hallo welt");
// Define parser variables and bind them to C++ variables [optional]
mupDefineVar(hParser, "a", &afVarVal[0]);
mupDefineVar(hParser, "b", &afVarVal[1]);
// Define postfix operators [optional]
mupDefinePostfixOprt(hParser, "M", Mega, 0);
mupDefinePostfixOprt(hParser, "m", Milli, 0);
// Define infix operator [optional]
mupDefineInfixOprt(hParser, "!", Not, 0);
// Define functions [optional]
// mupDefineStrFun(hParser, "query", SampleQuery, 0); // Add an unoptimizeable function
mupDefineFun0(hParser, "zero", ZeroArg, 0);
mupDefineFun1(hParser, "rnd", Rnd, 0); // Add an unoptimizeable function
mupDefineFun1(hParser, "rnd2", Rnd, 1);
mupDefineMultFun(hParser, "_sum", Sum, 0); // "sum" is already a default function
// Define binary operators [optional]
mupDefineOprt(hParser, "add", Add, 0, muOPRT_ASCT_LEFT, 0);
mupDefineOprt(hParser, "mul", Mul, 1, muOPRT_ASCT_LEFT, 0);
while ( fgets(szLine, 99, stdin) )
{
szLine[strlen(szLine)-1] = 0; // overwrite the newline
switch(CheckKeywords(szLine, hParser))
{
case 0: break; // no keyword found; parse the line
case 1: continue; // A Keyword was found do not parse the line
case -1: return; // abort the application
}
mupSetExpr(hParser, szLine);
fVal = mupEval(hParser);
// Without an Error handler function
// you must use this for error treatment:
//if (mupError(hParser))
//{
// printf("\nError:\n");
// printf("------\n");
// printf("Message: %s\n", mupGetErrorMsg(hParser) );
// printf("Token: %s\n", mupGetErrorToken(hParser) );
// printf("Position: %s\n", mupGetErrorPos(hParser) );
// printf("Errc: %d\n", mupGetErrorCode(hParser) );
// continue;
//}
if (!mupError(hParser))
printf("%f\n", fVal);
} // while
// finalle free the parser ressources
mupRelease(hParser);
}
//---------------------------------------------------------------------------
void Calc()
{
muChar_t szLine[100];
muFloat_t fVal = 0,
afVarVal[] = { 1, 2 }; // Values of the parser variables
muParserHandle_t hParser;
hParser = mupCreate(); // initialize the parser
// Set an error handler [optional]
// the only function that does not take a parser instance handle
mupSetErrorHandler(OnError);
// Set a variable factory
mupSetVarFactory(hParser, AddVariable, NULL);
// Define parser variables and bind them to C++ variables [optional]
mupDefineConst(hParser, "const1", 1);
mupDefineConst(hParser, "const2", 2);
mupDefineStrConst(hParser, "strBuf", "Hallo welt");
// Define parser variables and bind them to C++ variables [optional]
mupDefineVar(hParser, "a", &afVarVal[0]);
mupDefineVar(hParser, "b", &afVarVal[1]);
// Define postfix operators [optional]
mupDefinePostfixOprt(hParser, "M", Mega, 0);
mupDefinePostfixOprt(hParser, "m", Milli, 0);
// Define infix operator [optional]
mupDefineInfixOprt(hParser, "!", Not, 0);
// Define functions [optional]
// mupDefineStrFun(hParser, "query", SampleQuery, 0); // Add an unoptimizeable function
mupDefineFun1(hParser, "rnd", Rnd, 0); // Add an unoptimizeable function
mupDefineFun1(hParser, "rnd2", Rnd, 1);
mupDefineMultFun(hParser, "_sum", Sum, 0); // "sum" is already a default function
// Define binary operators [optional]
mupDefineOprt(hParser, "add", Add, 0, 0);
mupDefineOprt(hParser, "mul", Mul, 1, 0);
while ( fgets(szLine, 99, stdin) )
{
szLine[strlen(szLine)-1] = 0; // overwrite the newline
if (CheckKeywords(szLine, hParser))
continue;
mupSetExpr(hParser, szLine);
fVal = mupEval(hParser);
/*
// Without an Error handler function
// you must use this for error treatment:
if (mupError())
{
printf("\nError:\n");
printf("------\n");
printf("Message: %s\n", mupGetErrorMsg() );
printf("Token: %s\n", mupGetErrorToken() );
printf("Position: %s\n", mupGetErrorPos() );
printf("Errc: %s\n", mupGetErrorCode() );
continue;
}
*/
if (!mupError())
printf("%f\n", fVal);
} // while
// finalle free the parser ressources
mupRelease(hParser);
}