private static Func <string, string> CreateIndividualTransform(string parameter)
{
if (string.IsNullOrWhiteSpace(parameter))
{
return(null);
}
var firstColonIndex = parameter.IndexOf(':');
string possibleFunction;
if (firstColonIndex == -1)
{
possibleFunction = parameter;
parameter = null;
}
else
{
possibleFunction = parameter.Substring(0, firstColonIndex);
parameter = parameter.Length > firstColonIndex + 1 ? parameter.Substring(firstColonIndex + 1) : null;
}
possibleFunction = possibleFunction.Trim();
switch (possibleFunction.ToLowerInvariant())
{
case "ap":
return(AddPrefixTransform.GetTransform(parameter));
case "as":
return(AddSuffixTransform.GetTransform(parameter));
case "rp":
return(RemovePrefixTransform.GetTransform(parameter));
case "rs":
return(RemoveSuffixTransform.GetTransform(parameter));
case "t":
return(ProcessHelper.GetTransformFuncFromValue(parameter));
case "d":
return(DefaultTransform.GetTransform(parameter));
default:
switch (possibleFunction)
{
case "tl":
case "Tl":
case "l":
return(ProcessHelper.GetTransformFuncFromTransform(Transform.FirstLower));
case "tL":
case "TL":
case "L":
return(ProcessHelper.GetTransformFuncFromTransform(Transform.AllLower));
case "tu":
case "Tu":
case "u":
return(ProcessHelper.GetTransformFuncFromTransform(Transform.FirstUpper));
case "tU":
case "TU":
case "U":
return(ProcessHelper.GetTransformFuncFromTransform(Transform.AllUpper));
}
break;
}
return(null);
}
