private static T DoStandardExceptionHandling<T>(ArgException ex, ArgHook.HookContext context, CommandLineArgumentsDefinition definition) where T : class
{
Console.WriteLine(ex.Message);
ArgUsage.GetStyledUsage(definition, definition.ExceptionBehavior.ExeName, new ArgUsageOptions
{
ShowPosition = definition.ExceptionBehavior.ShowPositionColumn,
ShowType = definition.ExceptionBehavior.ShowTypeColumn,
ShowPossibleValues = definition.ExceptionBehavior.ShowPossibleValues,
}).Write();
return CreateEmptyResult<T>(context, ex);
}
public static ConsoleString GetUsage(Type usageTemplateProviderType, CommandLineArgumentsDefinition definition)
{
if (usageTemplateProviderType.GetInterfaces().Contains(typeof(IUsageTemplateProvider)) == false)
{
throw new InvalidArgDefinitionException("The UsageTemplateProviderType " + usageTemplateProviderType.FullName + " does not implement " + typeof(IUsageTemplateProvider).Name);
}
var provider = ObjectFactory.CreateInstance(usageTemplateProviderType) as IUsageTemplateProvider;
string template = provider.GetTemplate();
var usage = ArgUsage.GenerateUsageFromTemplate(definition, template);
return(usage);
}
private static T DoStandardExceptionHandling <T>(ArgException ex, ArgHook.HookContext context, CommandLineArgumentsDefinition definition) where T : class
{
Console.WriteLine(ex.Message);
if (definition.ExceptionBehavior.UsageTemplateFile != null)
{
var template = File.ReadAllText(definition.ExceptionBehavior.UsageTemplateFile);
ArgUsage.GenerateUsageFromTemplate(definition, template).Write();
}
else
{
UsageTemplateProvider.GetUsage(definition.ExceptionBehavior.UsageTemplateProviderType, definition).Write();
}
return(CreateEmptyResult <T>(context, ex));
}
/// <summary>
/// Writes the help as long as WriteHelp is true
/// </summary>
/// <param name="context">Context passed by the parser</param>
public override void AfterCancel(ArgHook.HookContext context)
{
base.AfterCancel(context);
if (WriteHelp == false)
{
return;
}
ArgUsage.GetStyledUsage(context.Definition, EXEName, new ArgUsageOptions()
{
ShowPosition = ShowPositionColumn,
ShowType = ShowTypeColumn,
ShowPossibleValues = ShowPossibleValues,
}).Write();
}
/// <summary>
/// Creates a new ArgLongForm attirbute using the given long form string.
/// </summary>
/// <param name="value">The long form value. You can provide the two dashes in this string or not. The --long-form pattern will enforced at runtime either way.</param>
public ArgLongForm(string value)
{
this.BeforeParsePriority = 100;
if (value == null)
{
throw new InvalidArgDefinitionException("Values for long form arguments cannot be null", new ArgumentNullException("value"));
}
if (value.StartsWith("--"))
{
value = value.Substring(2);
}
this.value = value;
var myUsageHook = new UsageHook();
myUsageHook.HookExecuting += (usageInfo) =>
{
if (target == null)
{
// This should ensure that the target should be populated if the current property is the target
try { Args.Parse(usageInfo.Property.PropertyType); } catch (Exception) { }
}
if (target == null)
{
return;
}
if (usageInfo.Property == target)
{
usageInfo.Aliases.Add("--" + this.value);
}
};
ArgUsage.RegisterHook(null, myUsageHook);
}
