public override RevRegExData VisitRangeStartEnd(RevRegExParser.RangeStartEndContext context)
{
var start = (Visit(context.startchar) as RevRegExDataChar).Value;
var end = (Visit(context.endchar) as RevRegExDataChar).Value;
if (start > end)
{
var tmp = start;
start = end;
end = tmp;
}
var chars = new List <RevRegExDataChar>();
for (var ch = start; ch <= end; ++ch)
{
chars.Add(new RevRegExDataChar(ch));
}
return(RevRegExDataJoin.Create(chars));
}
public override RevRegExData VisitRange(RevRegExParser.RangeContext context)
{
var list = new List <RevRegExDataChar>();
if (context.HYPHEN() != null)
{
list.Add(new RevRegExDataChar('-'));
}
foreach (var item in context.rangeItem().Select(item => Visit(item)))
{
if (item is RevRegExDataChar)
{
list.Add(item as RevRegExDataChar);
}
if (item is RevRegExDataJoin)
{
list.AddRange((item as RevRegExDataJoin).List.Cast <RevRegExDataChar>());
}
}
return(RevRegExDataJoin.Create(list));
}
public override RevRegExData VisitItems(RevRegExParser.ItemsContext context) => RevRegExDataJoin.Create(context.itemsList().Select(item => Visit(item)).ToList());