public static ConfTopicMsgRangeDTO GetTopicMsgRange(this Data.EF.Conference conf, string topicMsgRange, bool required = false)
{
// Regex: ^(.+?)(\.(\d+)(\-(\d+))?)?$
// Groups: 1 (topic), 3 (lo), 5 (hi)
var regex = new Regex(@"^(.+?)(\.(\d+)\-?(\-(\d+))?)?$");
var match = regex.Match(topicMsgRange);
if (!match.Success)
{
return(null);
}
var result = new ConfTopicMsgRangeDTO();
if (match.Groups.Count >= 1)
{
result.topic = conf.GetTopicFromStr(match.Groups[1].Value, required);
}
if (match.Groups.Count >= 3 && int.TryParse(match.Groups[3].Value, out int i))
{
result.msgLow = i;
}
if (match.Groups.Count >= 5 && int.TryParse(match.Groups[5].Value, out i))
{
result.msgHigh = i;
}
if (!topicMsgRange.EndsWith("-") && result.msgHigh == 0)
{
result.msgHigh = result.msgLow;
}
return(result);
}
private void ConfDir(Data.EF.Conference conf)
{
var selTopics = conf.ConfTopics;
foreach (var topic in selTopics.OrderBy(t => t.TopicNo))
{
session.terminal.Line(ConfFormatter.FormatTopic(topic));
}
}
public static ConfTopic GetTopicFromStr(this Data.EF.Conference conf, string topicName, bool Required = false)
{
// All?
if (topicName == "*")
{
return(null);
}
// Numeric?
if (int.TryParse(topicName, out int topicNo))
{
// check the number is valid
if (topicNo > 0)
{
var topic = conf.ConfTopics.Where(t => t.TopicNo == topicNo).FirstOrDefault();
if (topic != null)
{
return(topic);
}
throw new ArgumentException(string.Format(strings.Conf_UnknownTopic, topicNo));
}
}
if (conf.ConfTopics.Count(t => t.Name.StartsWith(topicName)) == 1)
{
var topic = conf.ConfTopics.First(t => t.Name.StartsWith(topicName));
return(topic);
}
if (Required)
{
throw new ArgumentException(string.Format(strings.Conf_UnknownTopic, topicName));
}
return(null);
}