/// <summary> Provides the standard type cohersion between types </summary>
protected Object ChangeType(Object value, Type type, bool required, Object defaultValue)
{
if (value == null)
{
InterpreterException.Assert(required == false, "The value for {0} is required.", this.DisplayName);
value = defaultValue;
}
InterpreterException.Assert(value != null || !type.IsValueType, "Can not set value of type {0} to null in {1}.", type, this.DisplayName);
if (value != null)
{
try
{
if (type.IsEnum && value is string)
{
value = Enum.Parse(type, value as string, true);
}
else if (!type.IsAssignableFrom(value.GetType()))
{
value = Convert.ChangeType(value, type);
}
}
catch (FormatException f)
{
throw new InterpreterException(f.Message, f);
}
}
return(value);
}
public virtual void Run(ICommandInterpreter interpreter, string[] arguments)
{
ArgumentList args = new ArgumentList(arguments);
if (args.Count == 1 && args.Contains("?"))
{
Help(); return;
}
//translate ordinal referenced names
for (int i = 0; i < _arguments.Length && args.Unnamed.Count > 0; i++)
{
args.Add(_arguments[i].DisplayName, args.Unnamed[0]);
args.Unnamed.RemoveAt(0);
}
List <object> invokeArgs = new List <object>();
foreach (Argument arg in _arguments)
{
object argValue = arg.GetArgumentValue(interpreter, args, arguments);
invokeArgs.Add(argValue);
}
//make sure we actually used all arguments.
List <string> names = new List <string>(args.Keys);
InterpreterException.Assert(names.Count == 0, "Unknown argument(s): {0}", String.Join(", ", names.ToArray()));
InterpreterException.Assert(args.Unnamed.Count == 0, "Too many arguments supplied.");
Invoke(Method, Target, invokeArgs.ToArray());
}
/// <summary> Manually adds an option </summary>
public void AddOption(IOption option)
{
foreach (string key in option.AllNames)
{
InterpreterException.Assert(false == _options.ContainsKey(key), "Option {0} already exists.", key);
_options.Add(key, option);
}
}
public object Get(string property)
{
IOption opt;
InterpreterException.Assert(_options.TryGetValue(property, out opt), "The option {0} was not found.", property);
object value = opt.Value;
Console.Out.WriteLine("{0}", value);
return(value);
}
/// <summary>
/// Expands '$(OptionName)' within the input string to the named option's value.
/// </summary>
public string ExpandOptions(string input)
{
// replaces $(OptionName) with value of OptionName
return(StringUtils.Transform(input, _optionName,
delegate(Match m)
{
string optionName = m.Groups["Name"].Value;
InterpreterException.Assert(_options.ContainsKey(optionName), "Unknown option specified: {0}", optionName);
return String.Format("{0}", _options[optionName].Value);
}
).Replace("$$", "$"));
}
/// <summary> Manually adds a command </summary>
public void AddCommand(ICommand command)
{
foreach (string key in command.AllNames)
{
if (String.IsNullOrEmpty(key))
{
continue;
}
InterpreterException.Assert(false == _commands.ContainsKey(key), "Command {0} already exists.", key);
_commands.Add(key, command);
}
}
/// <summary> Provides the standard type cohersion between types </summary>
protected Object ChangeType(Object value, Type type, bool required, Object defaultValue)
{
if (value == null)
{
InterpreterException.Assert(required == false, "The value for {0} is required.", this.DisplayName);
value = defaultValue;
}
InterpreterException.Assert(value != null || !type.IsValueType, "Can not set value of type {0} to null in {1}.", type, this.DisplayName);
if (value != null)
{
if (!type.IsAssignableFrom(value.GetType()))
{
value = Convert.ChangeType(value, type);
}
}
return(value);
}
/// <summary> Provides the standard type cohersion between types </summary>
protected Object ChangeType(Object value, Type type, bool required, Object defaultValue)
{
if (value == null)
{
InterpreterException.Assert(required == false, "The value for {0} is required.", this.DisplayName);
value = defaultValue;
}
InterpreterException.Assert(value != null ||
!type.IsValueType || Nullable.GetUnderlyingType(type) != null,
"Can not set value of type {0} to null in {1}.", type, this.DisplayName);
if (value != null)
{
try
{
var targetType = !type.IsValueType ? type : (Nullable.GetUnderlyingType(type) ?? type);
if (targetType.IsEnum && value is string)
{
value = Enum.Parse(targetType, value as string, true);
}
if (targetType.IsEnum && Enum.IsDefined(targetType, value))
{
value = Enum.ToObject(targetType, value);
}
else if (!targetType.IsAssignableFrom(value.GetType()))
{
value = Convert.ChangeType(value, targetType);
}
}
catch (FormatException fe)
{
throw new InterpreterException(fe.Message, fe);
}
catch (ArgumentException ae)
{
throw new InterpreterException(ae.Message, ae);
}
}
return(value);
}
/// <summary>
/// The last link in the command chain
/// </summary>
internal void ProcessCommand(string[] arguments)
{
if (Check.NotNull(arguments).Length == 0)
{
Help(null);
return;
}
string commandName = arguments[0];
ICommand command;
InterpreterException.Assert(_commands.TryGetValue(commandName, out command), "Invalid command name: {0}", commandName);
List <string> args = new List <string>();
for (int i = 1; i < arguments.Length; i++)
{
args.Add(ExpandOptions(arguments[i]));
}
command.Run(this, args.ToArray());
}
public void Set([DefaultValue(null)] string property, [DefaultValue(null)] object value,
[DefaultValue(false), Description("Read from std::in lines formatted as NAME=VALUE")] bool readInput)
{
if (readInput)
{
string line;
while (null != (line = Console.In.ReadLine()))
{
Set(line, null, false);
}
return;
}
if (property == null)
{
foreach (IOption opt in Options)
{
Console.WriteLine("{0}={1}", opt.DisplayName, opt.Value);
}
return;
}
else if (value == null && property.IndexOf('=') < 0)
{
Get(property);
return;
}
else if (value == null)
{
string[] args = property.Split(new char[] { '=' }, 2);
property = args[0].TrimEnd();
value = args[1].TrimStart();
}
IOption option;
InterpreterException.Assert(_options.TryGetValue(property, out option), "The option {0} was not found.", property);
option.Value = value;
}
public DisplayInfoBase(object target, ICustomAttributeProvider mi)
{
_target = target;
_member = mi;
if (mi is MethodInfo)
{
_name = ((MethodInfo)mi).Name;
}
else if (mi is ParameterInfo)
{
_name = ((ParameterInfo)mi).Name;
}
else if (mi is PropertyInfo)
{
_name = ((PropertyInfo)mi).Name;
}
InterpreterException.Assert(_name != null, "Unknown type " + mi.ToString());
_reflectedType = target == null ? null : target is Type ? (Type)target : target.GetType();
_description = _member.ToString();
_category = _target.GetType().Name;
_visible = true;
foreach (DisplayNameAttribute a in _member.GetCustomAttributes(typeof(DisplayNameAttribute), true))
{
_name = a.DisplayName;
}
foreach (DescriptionAttribute a in _member.GetCustomAttributes(typeof(DescriptionAttribute), true))
{
_description = String.Format("{0}", a.Description);
}
foreach (CategoryAttribute a in _member.GetCustomAttributes(typeof(CategoryAttribute), true))
{
_category = String.Format("{0}", a.Category);
}
foreach (BrowsableAttribute a in _member.GetCustomAttributes(typeof(BrowsableAttribute), true))
{
_visible = a.Browsable;
}
List <string> names = new List <string>();
foreach (DisplayInfoAttribute a in mi.GetCustomAttributes(typeof(DisplayInfoAttribute), true))
{
if (!String.IsNullOrEmpty(a.DisplayName))
{
_name = a.DisplayName;
}
names.AddRange(a.AliasNames);
if (!String.IsNullOrEmpty(a.Description))
{
_description = a.Description;
}
if (!String.IsNullOrEmpty(a.Category))
{
_category = a.Category;
}
_visible &= a.Visible;
}
names.Insert(0, _name);
foreach (AliasNameAttribute a in _member.GetCustomAttributes(typeof(AliasNameAttribute), true))
{
names.Add(a.Name);
}
_allNames = names.ToArray();
try { _attributes = mi.GetCustomAttributes(true); }
catch { _attributes = new object[0]; }
}