private string GetArgumentName(PropertyHelpRequest request)
{
string primaryName = request.Property.Name;
var attribute = request.CommandLineAttribute;
if (attribute?.Name != null)
{
return(attribute.Name.ToLowerInvariant());
}
return(primaryName.ToLowerInvariant());
}
/// <summary>Prints the help for the given property.</summary>
/// <param name="property">The argument property.</param>
public void PrintPropertyHelp([NotNull] PropertyInfo property)
{
if (property == null)
{
throw new ArgumentNullException(nameof(property));
}
var helpRequest = new PropertyHelpRequest(property);
WritePropertyHeader(helpRequest);
WritePropertyContent(helpRequest);
WritePropertyFooter(helpRequest);
}
private void WritePropertyContent(PropertyHelpRequest property)
{
if (property.DetailedHelpTextAttribute != null)
{
WriteHelpText(property.DetailedHelpTextAttribute.ResourceKey, property.DetailedHelpTextAttribute.Description);
}
else if (property.HelpTextAttribute != null)
{
WriteHelpText(property.HelpTextAttribute.ResourceKey, property.HelpTextAttribute.Description);
}
else
{
WriteNoHelpTextAvailable(property);
}
}
private string GetCommandLineTyp(PropertyHelpRequest helpRequest)
{
if (helpRequest.CommandLineAttribute is OptionAttribute)
{
return("option");
}
if (helpRequest.CommandLineAttribute is ArgumentAttribute)
{
return("argument");
}
if (helpRequest.CommandLineAttribute is CommandAttribute)
{
return("command");
}
return("property");
}
/// <summary>Writes the header for a property help request.</summary>
/// <param name="helpRequest">The property.</param>
protected virtual void WritePropertyHeader(PropertyHelpRequest helpRequest)
{
Console.WriteLine($"Help for the {GetCommandLineTyp(helpRequest)} '{GetArgumentName(helpRequest)}'");
Console.WriteLine();
}
/// <summary>Writes the footer for a property help request.</summary>
/// <param name="property">The property the help was requested for.</param>
protected virtual void WritePropertyFooter(PropertyHelpRequest property)
{
}
protected virtual void WriteNoHelpTextAvailable(PropertyHelpRequest property)
{
}