bool Parser::checkEquLabel()
{
updateFileInfo();
const Token& start = peekToken();
if (start.type == TokenType::Identifier)
{
int pos = 1;
if (peekToken(pos).type == TokenType::Colon)
pos++;
if (peekToken(pos).type == TokenType::Equ &&
peekToken(pos+1).type == TokenType::EquValue)
{
std::wstring name = peekToken(0).getStringValue();
std::wstring value = peekToken(pos+1).getStringValue();
eatTokens(pos+2);
// equs are not allowed in macros
if (initializingMacro)
{
printError(start,L"equ not allowed in macro");
return true;
}
if (Global.symbolTable.isValidSymbolName(name) == false)
{
printError(start,L"Invalid equation name %s",name);
return true;
}
if (Global.symbolTable.symbolExists(name,Global.FileInfo.FileNum,Global.Section))
{
printError(start,L"Equation name %s already defined",name);
return true;
}
addEquation(start,name,value);
return true;
}
}
return false;
}
/* Remove an Equation being managed. In this case the equation is
* identified by its independent term.
*
* @param indterm Variable object of the equation independent term
* (measurement type).
*
* \warning All Equations with the same independent term will be
* erased.
*/
EquationSystem& EquationSystem::removeEquation( const Variable& indterm )
{
// Create a backup list
std::list<Equation> backupList;
// Visit each "Equation" in "equationDescriptionList"
for( std::list<Equation>::const_iterator itEq =
equationDescriptionList.begin();
itEq != equationDescriptionList.end();
++itEq )
{
// If current equation has a different independent term, save it
if ( (*itEq).getIndependentTerm() != indterm )
{
backupList.push_back(*itEq);
}
}
// Clear the full contents of this object
clearEquations();
// Add each "Equation" in the backup equation list
for( std::list<Equation>::const_iterator itEq = backupList.begin();
itEq != backupList.end();
++itEq )
{
addEquation(*itEq);
}
// We must "Prepare()" this EquationSystem again
isPrepared = false;
return (*this);
} // End of method 'EquationSystem::removeEquation()'
