public static ArgumentResult ParseArgumentTemplate(string template)
{
var valueName = default(string);
var required = false;
foreach (var token in TemplateTokenizer.Tokenize(template))
{
if (token.TokenKind == TemplateToken.Kind.ShortName ||
token.TokenKind == TemplateToken.Kind.LongName)
{
throw TemplateException.ArgumentCannotContainOptions(template, token);
}
if (token.TokenKind == TemplateToken.Kind.OptionalValue ||
token.TokenKind == TemplateToken.Kind.RequiredValue)
{
if (!string.IsNullOrWhiteSpace(valueName))
{
throw TemplateException.MultipleValuesAreNotSupported(template, token);
}
if (string.IsNullOrWhiteSpace(token.Value))
{
throw TemplateException.ValuesMustHaveName(template, token);
}
valueName = token.Value;
required = token.TokenKind == TemplateToken.Kind.RequiredValue;
}
}
if (valueName == null)
{
throw TemplateException.ArgumentsMustHaveValueName(template);
}
return(new ArgumentResult(valueName, required));
}
