public override void ParseInside(ExpressionParser parser)
{
var collection = parser.Collection;
var le = collection.GotoNextMust();
if (le.LexemType != LexType.Command || le.LexemText.ToLower() != "when")
{
int idx = collection.IndexLexem;
ExpressionParser tonode = new ExpressionParser(collection);
tonode.Parse();
if (tonode.Results.Count != 1)
{
collection.Error("не верное число параметров", collection.Get(idx));
}
CaseArg = tonode.Single();
le = collection.CurrentLexem();
}
if (le.LexemType != LexType.Command || le.LexemText.ToLower() != "when")
{
collection.Error("Ожидалось WHEN", collection.CurrentOrLast());
}
while (le.LexemType == LexType.Command && le.LexemText.ToLower() == "when")
{
WhenThen wt = new WhenThen();
collection.GotoNextMust();
int idx = collection.IndexLexem;
ExpressionParser tonode = new ExpressionParser(collection);
tonode.Parse();
if (tonode.Results.Count != 1)
{
collection.Error("не верное число параметров", collection.Get(idx));
}
wt.When = tonode.Single();
le = collection.CurrentLexem();
if (le == null || le.LexemType != LexType.Command || le.LexemText.ToLower() != "then")
{
collection.Error("ожидалось THEN", collection.CurrentOrLast());
}
le = collection.GotoNextMust();
idx = collection.IndexLexem;
tonode = new ExpressionParser(collection);
tonode.Parse();
if (tonode.Results.Count != 1)
{
collection.Error("не верное число параметров", collection.Get(idx));
}
wt.Then = tonode.Single();
ListWhenThen.Add(wt);
le = collection.CurrentLexem();
if (le == null)
{
collection.Error("Не найден END", collection.GetLast());
}
if (le.LexemText.ToLower() == "end")
{
break;
}
if (le.LexemText.ToLower() == "when")
{
continue;
}
if (le.LexemText.ToLower() == "else")
{
le = collection.GotoNextMust();
idx = collection.IndexLexem;
tonode = new ExpressionParser(collection);
tonode.Parse();
if (tonode.Results.Count != 1)
{
collection.Error("не верное число параметров", collection.Get(idx));
}
Else = tonode.Single();
le = collection.CurrentLexem();
if (le == null || le.LexemText.ToLower() != "end")
{
collection.Error("Ожидался END", collection.CurrentOrLast());
}
break;
}
collection.Error("Не ожиданный конец", collection.CurrentOrLast());
}
base.ParseInside(parser);
}
public bool CaseAsBool(WhenThen wt, object data)
{
return(CaseArg.GetBoolResultOut(data) == wt.When.GetBoolResultOut(data));
}
public bool CaseAsTime(WhenThen wt, object data)
{
return(CaseArg.GetTimeResultOut(data) == wt.When.GetTimeResultOut(data));
}
public bool CaseAsFloat(WhenThen wt, object data)
{
return(CaseArg.GetFloatResultOut(data) == wt.When.GetFloatResultOut(data));
}