private IfBlock BuildIfBlock()
{
if (_ConditionalList[_ConditionalIndex].Keyword == Keyword.Fail)
{
var failBlock = new IfBlock {
Fail = _ConditionalList[_ConditionalIndex++]
};
ValidateIndex();
return(failBlock);
}
var ifBlock = new IfBlock {
If = _ConditionalList[_ConditionalIndex++]
};
ValidateIndex();
while (_ConditionalList[_ConditionalIndex].Keyword == Keyword.If)
{
ifBlock.IfContent.Add(BuildIfBlock());
}
ValidateIndex();
if (_ConditionalList[_ConditionalIndex].Keyword != Keyword.Then)
{
throw new VoteSubstitutionException("Expected Then, found \"{0}\"",
_ConditionalList[_ConditionalIndex].MatchValue);
}
ifBlock.Then = _ConditionalList[_ConditionalIndex++];
ValidateIndex();
while ((_ConditionalList[_ConditionalIndex].Keyword == Keyword.If) ||
(_ConditionalList[_ConditionalIndex].Keyword == Keyword.Fail))
{
ifBlock.ThenContent.Add(BuildIfBlock());
}
ValidateIndex();
switch (_ConditionalList[_ConditionalIndex].Keyword)
{
case Keyword.Else:
ifBlock.Else = _ConditionalList[_ConditionalIndex++];
ValidateIndex();
while ((_ConditionalList[_ConditionalIndex].Keyword == Keyword.If) ||
(_ConditionalList[_ConditionalIndex].Keyword == Keyword.Fail))
{
ifBlock.ElseContent.Add(BuildIfBlock());
}
ValidateIndex();
break;
case Keyword.ElseIf:
ifBlock.Else = Conditional.CreateElseFromElseIf(_ConditionalList[_ConditionalIndex]);
ifBlock.ElseContent.Add(BuildIfBlock());
ValidateIndex();
break;
}
if (_ConditionalList[_ConditionalIndex].Keyword != Keyword.EndIf)
{
throw new VoteSubstitutionException("Expected EndIf, found \"{0}\"",
_ConditionalList[_ConditionalIndex].MatchValue);
}
ifBlock.Endif = ifBlock.If.Keyword == Keyword.ElseIf
? Conditional.CreateEndifForElseIf(_ConditionalList[_ConditionalIndex])
: _ConditionalList[_ConditionalIndex++];
return(ifBlock);
}