public static BasePattern CreatePattern(string patternText)
{
var result = PatternParsers.Regex(new ArrayConsList<char>(patternText));
if (result.Rest.IsEmpty)
return result.Tree;
else
throw new ArgumentException(
string.Format("Could not understand part of the regex pattern: {0}.",
result.Rest.AsEnumerable().AsString().ShowVerbatim()),
"patternText.");
}