public static MarkupExtensionParameterDescriptor Parse(string argsAsString)
{
MarkupExtensionParameterDescriptor arg = new MarkupExtensionParameterDescriptor();
int indexOfEqual = argsAsString.IndexOf('=');
if (indexOfEqual < 0)
{
// Content Property
arg.PropertyName = string.Empty;
arg.Value = argsAsString.Trim();
}
else
{
arg.PropertyName = argsAsString.Substring(0, indexOfEqual).Trim();
arg.Value = argsAsString.Substring(indexOfEqual + 1).Trim();
}
return(arg);
}
private static MarkupExtensionParameterDescriptor[] ParseArgs(string argsAsString)
{
string s = argsAsString.Trim();
List <string> args = new List <string>();
string currentArg = string.Empty;
char currentChar;
bool ignoreComma = false;
bool skipWhiteSpace = true;
bool isQuoting = false;
int openedBracketCount = 0;
for (int i = 0; i < s.Length; ++i)
{
if ((currentChar = s[i]) == '{' && !isQuoting)
{
++openedBracketCount;
currentArg += '{';
ignoreComma = true;
skipWhiteSpace = true;
}
else if (currentChar == '}' && !isQuoting)
{
if (--openedBracketCount == 0)
{
ignoreComma = false;
}
currentArg += '}';
skipWhiteSpace = true;
}
else if (currentChar == '\'')
{
skipWhiteSpace = isQuoting;
ignoreComma = (isQuoting = !isQuoting);
currentArg += "'";
}
else if (currentChar == ',' && !ignoreComma)
{
args.Add(currentArg);
currentArg = string.Empty;
skipWhiteSpace = true;
}
else if (!char.IsWhiteSpace(currentChar) || !skipWhiteSpace)
{
currentArg += currentChar;
skipWhiteSpace = false;
}
}
if (isQuoting)
{
throw new ArgumentException(string.Format("Unable to convert '{0}' to MarkupExtensionParameterDescriptor", argsAsString));
}
if (!string.IsNullOrWhiteSpace(currentArg))
{
args.Add(currentArg);
}
MarkupExtensionParameterDescriptor[] res = new MarkupExtensionParameterDescriptor[args.Count];
for (int i = 0; i < args.Count; ++i)
{
res[i] = MarkupExtensionParameterDescriptor.Parse(args[i]);
}
return(res);
}
