internal static IMatch ParseFilterParameter(string filterParameter, out string error)
{
error = null;
if (!Regex.IsMatch(filterParameter, "Description\\s+-like\\s+", RegexOptions.IgnoreCase | RegexOptions.CultureInvariant))
{
error = Strings.InvalidRuleSearchFilterMissingElements;
return(null);
}
Regex regex = new Regex(string.Format("Description\\s+-like\\s+(\"|')(?<{0}>.*)(\"|')", "theFilter"), RegexOptions.IgnoreCase | RegexOptions.CultureInvariant);
Match match = regex.Match(filterParameter);
if (match.Groups["theFilter"] != null)
{
string text = regex.Match(filterParameter).Groups["theFilter"].Value.Trim();
if (string.IsNullOrEmpty(text))
{
error = Strings.InvalidRuleSearchFilterEmpty;
return(null);
}
MatchFactory matchFactory = new MatchFactory();
try
{
return(matchFactory.CreateRegex(GetTransportRule.FilterStringToRegex(text), false, false));
}
catch (ArgumentException ex)
{
error = (string.IsNullOrWhiteSpace(ex.Message) ? "Unknown Error" : ex.Message);
return(null);
}
}
error = Strings.InvalidRuleSearchFilterEmpty;
return(null);
}
