private static bool TryGetPropertyValue(object formatArgument,
string argumentName,
string formatOption,
out string argumentValue,
ParseOptions parseOptions)
{
argumentValue = null;
var argumentPath = argumentName.Split('.');
PropertyInfo property = null;
//Get nested property value
foreach (var pathItem in argumentPath)
{
var type = formatArgument.GetType();
property = type.GetProperty(pathItem);
if (property == null) break;
formatArgument = property.GetValue(formatArgument, null);
if (formatArgument == null) break;
}
if (property == null) return false;
if (formatArgument == null) return false;
if (formatArgument is DateTime)
{
//Convert date if necessary
if (parseOptions.CustomDateConverter != null)
{
formatArgument = parseOptions.CustomDateConverter((DateTime)formatArgument);
}
if (!formatOption.IsNullOrEmpty() && allowedDateFormats.Contains(formatOption))
{
argumentValue = ((DateTime)formatArgument).ToString(formatOption);
}
else
{
argumentValue = formatArgument.ToString();
}
}
else
{
argumentValue = formatArgument.ToString();
}
return true;
}
private static string ProcessParameters(string text, ParseOptions parseOptions, params object[] args)
{
var matches = parameter.Matches(text);
foreach (Match match in matches)
{
string argument = match.Groups["argument"].Value;
string replacementText = argument;
string textToReplace = match.Groups["parameter"].Value;
if (HasProperties(argument))
{
string bindedText = BindProperties(argument, parseOptions, args);
if (bindedText == null && parseOptions.SwallowNewlineOnEmptyParameter)
{
textToReplace = match.Value;
}
replacementText = bindedText;
}
text = text.Replace(textToReplace, replacementText);
}
return text;
}
private static string BindProperties(string argument, ParseOptions parseOptions, object[] args)
{
while (HasProperties(argument))
{
var firstMatch = propertyBinding.Matches(argument)[0];
var replaceValue = GetArgumentValue(GetPropertyPath(firstMatch.Value), parseOptions, GetPropertyFormatOptions(firstMatch.Value), args);
string textBefore = argument.Substring(0, firstMatch.Index);
string textAfter = argument.Substring(firstMatch.Index + firstMatch.Length);
if (replaceValue == null) return null;
argument = textBefore + replaceValue + textAfter;
}
return argument;
}
private static string GetArgumentValue(string argumentName, ParseOptions parseOptions, string formatOption, object[] args)
{
if (args == null || args.Length == 0) return null;
string argumentValue = null;
foreach (var formatAgument in args)
{
if (formatAgument == null) continue;
if (TryGetPropertyValue(formatAgument, argumentName, formatOption, out argumentValue, parseOptions))
{
if (parseOptions.ConsiderAsNull.Contains(argumentValue)) return null;
return (parseOptions.Trim && argumentValue != null) ? argumentValue.Trim() : argumentValue;
}
}
return null;
}
/// <summary>
/// Parses the specified text with the specified options.
/// </summary>
/// <param name="text">The text.</param>
/// <param name="parseOptions">The parse options.</param>
/// <param name="args">The args.</param>
/// <returns></returns>
public static string Parse(string text, ParseOptions parseOptions, params object[] args)
{
if (parseOptions == null) throw new ArgumentNullException("parseOptions", "parseOptions is null.");
if (HasParameters(text)) return ProcessParameters(text, parseOptions, args);
return text;
}