public static void DefaultParsingErrorsHandler(CommandLineOptionsBase options, HelpText current)
{
if (options == null) throw new ArgumentNullException("options");
if (current == null) throw new ArgumentNullException("current");
if (options.InternalLastPostParsingState.Errors.Count <= 0)
return;
var errors = current.RenderParsingErrorsText(options, 2); // indent with two spaces
if (string.IsNullOrWhiteSpace(errors))
return;
current.AddPreOptionsLine(string.Concat(Environment.NewLine, current.SentenceBuilder.ErrorsHeadingText));
var lines = errors.Split(new[] { Environment.NewLine }, StringSplitOptions.None);
foreach (var line in lines) { current.AddPreOptionsLine(line); }
}
/// <summary>
/// Creates a new instance of the <see cref="HelpText"/> class using common defaults.
/// </summary>
/// <returns>
/// An instance of <see cref="HelpText"/> class.
/// </returns>
/// <param name='options'>
/// The instance that collected command line arguments parsed with <see cref="CommandLineParser"/> class.
/// </param>
/// <param name='err'>
/// A delegate used to customize the text block for reporting parsing errors.
/// </param>
public static HelpText AutoBuild(object options, HandleParsingErrors err)
{
var title = ReflectionUtil.GetAttribute<AssemblyTitleAttribute>();
if (title == null) throw new InvalidOperationException("HelpText::AutoBuild() requires that you define AssemblyTitleAttribute.");
var version = ReflectionUtil.GetAttribute<AssemblyInformationalVersionAttribute>();
if (version == null) throw new InvalidOperationException("HelpText::AutoBuild() requires that you define AssemblyInformationalVersionAttribute.");
var copyright = ReflectionUtil.GetAttribute<AssemblyCopyrightAttribute>();
if (copyright == null) throw new InvalidOperationException("HelpText::AutoBuild() requires that you define AssemblyCopyrightAttribute.");
var auto = new HelpText
{
Heading = new HeadingInfo(Path.GetFileNameWithoutExtension(title.Title), version.InformationalVersion),
AdditionalNewLineAfterOption = true,
AddDashesToOption = true
};
if (err != null)
{
var typedTarget = options as CommandLineOptionsBase;
if (typedTarget != null)
{
err(auto);
}
}
auto.AddOptions(options);
return auto;
}