private static Rule Parse(string rule)
{
var math = RuleRegex.Match(rule);
if (!math.Success)
{
throw new InvalidOperationException($"Правило '{rule}' имеет неверный формат");
}
var left = new NonTerminal(math.Groups["NonTerm"].Value.Single());
var right = math.Groups["Right"].Value.Select(s => char.IsUpper(s) ? (Symbol) new NonTerminal(s) : new Terminal(s)).ToArray();
return(new Rule(left, right));
}
public TicketRule(string line)
{
var match = RuleRegex.Match(line);
if (!match.Success)
{
throw new Exception("No match for rule.");
}
Name = match.Groups[1].Value;
ValidRanges.Add(new Range()
{
MinValue = int.Parse(match.Groups[2].Value),
MaxValue = int.Parse(match.Groups[3].Value),
});
ValidRanges.Add(new Range()
{
MinValue = int.Parse(match.Groups[4].Value),
MaxValue = int.Parse(match.Groups[5].Value),
});
}