private static Predicate <string> CreateMatcher(SearchDirectory options, string matchString)
{
const string tmpString = "__SHAZAM,,";
if (options.SubstringMatch)
{
if (matchString.Contains('*'))
{
Regex re = new Regex("^.*" + Regex.Escape(matchString.Replace("*", tmpString)).Replace(tmpString, ".*") + ".*$", RegexOptions.IgnoreCase);
return(s => re.IsMatch(s));
}
else
{
return(s => - 1 != s.IndexOf(matchString, StringComparison.OrdinalIgnoreCase));
}
}
else
{
if (matchString.Contains('*'))
{
Regex re = new Regex("^" + Regex.Escape(matchString.Replace("*", tmpString)).Replace(tmpString, ".*") + ".*$", RegexOptions.IgnoreCase);
return(s => re.IsMatch(s));
}
else
{
return(s => s.StartsWith(matchString, StringComparison.OrdinalIgnoreCase));
}
}
}
private PartQuery(SearchDirectory options, IEnumerable <string> parts, int depth)
{
string matchString = parts.First();
this.QueryString = matchString;
this.Matches = CreateMatcher(options, matchString);
if (parts.Count() > 1)
{
this.Next = new PartQuery(options, parts.Skip(1), depth + 1);
}
this.Depth = depth;
}
public PartQuery(SearchDirectory options)
: this(options, options.Pattern.Split('\\'), 0)
{
}