score:2

Accepted answer

You could set a flag in TakeUntil that indicates that you are past #define BYE:

bool byeFlag = false;
var p = from line in File.ReadLines(file)
        .SkipWhile(l => l.TrimStart() != ("#define HELLO"))
        .TakeUntil(l =>
        {
            bool ret = byeFlag;
            if (l.TrimStart() == "#define BYE")
            {
                byeFlag = true;
            }
            return ret;
        })
        .ToList()
        select new
        {
            File = file,
            Line = line
        };

But as already mentioned, maybe LINQ is not really the best tool for what you are trying to do. Maybe parsers like ANTLR are better suited for the job?


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