void FindDataStatement()
{
while (DataStatementMarker.Valid && !(DataStatementMarker.Statement.Tokens[0] is DataToken))
{
DataStatementMarker.MoveToNextStatement();
}
}
public void ClearAll()
{
Lines.Clear();
VariablesEnvironment.Clear();
ExpressionEvaluator.Clear();
GosubMarkers.Clear();
ForNextLoops.Clear();
DataStatementMarker.MoveTo(0, 0);
DataTokenMarker = null;
}
public void RunFromLinesIndex(int startIndex = 0)
{
VariablesEnvironment.Clear();
GosubMarkers.Clear();
ForNextLoops.Clear();
ExpressionEvaluator.Clear();
DataStatementMarker.MoveTo(0, 0);
NextStatementMarker = null;
DataTokenMarker = null;
WarmRunFromIndex(startIndex);
}
public ValueToken ReadNextDataValue()
{
if (DataTokenMarker == null)
{
FindDataStatement();
if (DataStatementMarker.Valid == false)
{
return(null);
}
DataTokenMarker = new TokenMarker(DataStatementMarker.Statement.Tokens);
DataTokenMarker.MoveNext();
}
if (DataTokenMarker.Token == null)
{
while (DataTokenMarker.Token == null)
{
DataStatementMarker.MoveToNextStatement();
FindDataStatement();
if (DataStatementMarker.Valid == false)
{
return(null);
}
DataTokenMarker = new TokenMarker(DataStatementMarker.Statement.Tokens);
DataTokenMarker.MoveNext();
}
}
var result = (ValueToken)DataTokenMarker.Token;
DataTokenMarker.MoveNext();
if (DataTokenMarker.Token is CommaToken)
{
DataTokenMarker.MoveNext();
}
return(result);
}