public bool Cycle(TabCompletionContext context, Func <List <string> > evaluation, out string completion)
{
if (context.CompletionCandidate == lastCompletion && lastCompletion != null)
{
context.CompletionCandidate = lastSoFar;
}
var candidates = evaluation();
if (context.CompletionCandidate == lastSoFar)
{
lastIndex = context.Shift ? lastIndex - 1 : lastIndex + 1;
}
if (lastIndex >= candidates.Count)
{
lastIndex = 0;
}
if (lastIndex < 0)
{
lastIndex = candidates.Count - 1;
}
lastSoFar = context.CompletionCandidate;
if (candidates.Count == 0 || (candidates.Count > 1 && context.CompletionCandidate.Length < MinCharsBeforeCyclingBegins))
{
completion = null;
return(false);
}
else
{
completion = candidates[lastIndex];
lastCompletion = completion;
return(true);
}
}
internal static TabCompletionContext ConvertContext(CommandLineArgumentsDefinition definition, RichCommandLineContext innerContext)
{
TabCompletionContext context = new TabCompletionContext();
context.Definition = definition;
context.Shift = innerContext.KeyPressed.Modifiers.HasFlag(ConsoleModifiers.Shift);
context.PreviousToken = innerContext.CurrentTokenIndex > 0 ? innerContext.PreviousNonWhitespaceToken.Value : string.Empty;
context.CompletionCandidate = innerContext.CurrentToken.Value;
if (context.CompletionCandidate == " ")
{
context.CompletionCandidate = "";
}
context.CommandLineText = new ConsoleString(innerContext.Buffer).ToString();
context.TargetAction = FindContextualAction(innerContext.Tokens.FirstOrDefault().Value, definition);
context.TargetArgument = FindContextualArgument(new FindContextualArgumentArgs()
{
ActionContext = context.TargetAction,
Definition = definition,
CommandLine = new ConsoleString(innerContext.Buffer).StringValue,
CurrentTokenIndex = innerContext.CurrentTokenIndex,
CurrentToken = innerContext.CurrentToken.Value,
PreviousToken = context.PreviousToken
});
return(context);
}
public bool TryComplete(TabCompletionContext context, out string completion)
{
if (context.TargetArgument != target)
{
completion = null;
return(false);
}
return(wrappedSource.TryComplete(context, out completion));
}
public bool TryComplete(TabCompletionContext context, out string completion)
{
if(context.TargetArgument != target)
{
completion = null;
return false;
}
return wrappedSource.TryComplete(context.Shift, context.CompletionCandidate, out completion);
}
/// <summary>
/// Iterates through the candidates to try to find a match. If there are multiple possible matches it
/// supports cycling through tem as the user continually presses tab.
/// </summary>
/// <param name="shift">Indicates if shift was being pressed</param>
/// <param name="soFar">The text token that the user has typed before pressing tab.</param>
/// <param name="context"></param>
/// <param name="completion">The variable that you should assign the completed string to if you find a match.</param>
/// <returns>true if the tab completion was successful, false otherwise</returns>
public bool TryComplete(TabCompletionContext context, out string completion)
{
manager.MinCharsBeforeCyclingBegins = this.MinCharsBeforeCyclingBegins;
bool ignoreCase = true;
return(manager.Cycle(context, () =>
{
return (from c in CandidateFunction() where c.StartsWith(context.CompletionCandidate, ignoreCase, CultureInfo.CurrentCulture) select c).ToList();
}, out completion));
}
/// <summary>
/// Iterates over the wrapped sources looking for a match
/// </summary>
/// <param name="shift">Indicates if shift was being pressed</param>
/// <param name="soFar">The text token that the user has typed before pressing tab.</param>
/// <param name="context"></param>
/// <param name="completion">The variable that you should assign the completed string to if you find a match.</param>
/// <returns></returns>
public bool TryComplete(TabCompletionContext context, out string completion)
{
foreach (var source in sources)
{
if (source.TryComplete(context, out completion))
{
return(true);
}
}
completion = null;
return(false);
}
public bool TryComplete(TabCompletionContext context, out string completion)
{
var fixedUpCandidate = context.CompletionCandidate;
if (fixedUpCandidate.StartsWith("-"))
{
fixedUpCandidate = fixedUpCandidate.Substring(1);
}
else if (fixedUpCandidate.StartsWith("/"))
{
fixedUpCandidate = fixedUpCandidate.Substring(1);
}
else
{
completion = null;
return(false);
}
var match = definition.Arguments.Where(arg => arg.IsMatch(fixedUpCandidate)).SingleOrDefault();
if (match == null)
{
foreach (var action in definition.Actions)
{
match = action.Arguments.Where(arg => arg.IsMatch(fixedUpCandidate)).SingleOrDefault();
if (match != null)
{
break;
}
}
}
if (match == null)
{
completion = null;
return(false);
}
if (match != argument)
{
completion = null;
return(false);
}
return(TryComplete(new ArgumentAwareTabCompletionContext()
{
InnerContext = context,
Argument = argument
}
, out completion));
}
public bool TryComplete(TabCompletionContext context, out string completion)
{
if (actionSource == null)
{
actionSource = new SimpleTabCompletionSource(FindActions(context.Definition))
{
MinCharsBeforeCyclingBegins = 0
};
globalArgumentSource = new SimpleTabCompletionSource(FindGlobalArguments(context.Definition))
{
MinCharsBeforeCyclingBegins = 0
};
actionSpecificArgumentSources = FindActionSpecificSources(context.Definition);
}
// if this is the first token and the definition contains actions then try to auto complete an action name
if (string.IsNullOrEmpty(context.PreviousToken) && context.Definition.Actions.Count > 0)
{
return(actionSource.TryComplete(context, out completion));
}
// if there is no action in context and no argument in context then try to auto complete global argument names
else if (context.TargetAction == null && context.TargetArgument == null)
{
return(globalArgumentSource.TryComplete(context, out completion));
}
// if there is an action in context and not argument in context then try to complete action specific argument names and then globals
else if (context.TargetAction != null && context.TargetArgument == null)
{
var actionSpecificSource = actionSpecificArgumentSources[context.TargetAction];
if (actionSpecificSource.TryComplete(context, out completion))
{
return(true);
}
else
{
return(globalArgumentSource.TryComplete(context, out completion));
}
}
else
{
completion = null;
return(false);
}
}
public bool TryComplete(TabCompletionContext context, out string completion)
{
if(actionSource == null)
{
actionSource = new SimpleTabCompletionSource(FindActions(context.Definition)) { MinCharsBeforeCyclingBegins = 0 };
globalArgumentSource = new SimpleTabCompletionSource(FindGlobalArguments(context.Definition)) { MinCharsBeforeCyclingBegins = 0 };
actionSpecificArgumentSources = FindActionSpecificSources(context.Definition);
}
// if this is the first token and the definition contains actions then try to auto complete an action name
if(string.IsNullOrEmpty(context.PreviousToken) && context.Definition.Actions.Count > 0)
{
return actionSource.TryComplete(context, out completion);
}
// if there is no action in context and no argument in context then try to auto complete global argument names
else if(context.TargetAction == null && context.TargetArgument == null)
{
return globalArgumentSource.TryComplete(context, out completion);
}
// if there is an action in context and not argument in context then try to complete action specific argument names and then globals
else if(context.TargetAction != null && context.TargetArgument == null)
{
var actionSpecificSource = actionSpecificArgumentSources[context.TargetAction];
if (actionSpecificSource.TryComplete(context, out completion))
{
return true;
}
else
{
return globalArgumentSource.TryComplete(context, out completion);
}
}
else
{
completion = null;
return false;
}
}
public bool TryComplete(TabCompletionContext context, out string completion)
{
var allRemotes = new List<string>
{
"windows",
"hyperv",
"linux",
"freebsd",
"openbsd",
"netbsd",
"generic",
"all",
"vmcs"
};
var list = allRemotes.Where(r => r.StartsWith(context.CompletionCandidate.ToLower(), StringComparison.InvariantCultureIgnoreCase))
.Select(r => ContextAssistSearchResult.FromString(r))
.ToList();
completion = list.FirstOrDefault().RichDisplayText.StringValue;
return !string.IsNullOrWhiteSpace(completion);
}
/// <summary>
/// Iterates through the candidates to try to find a match. If there are multiple possible matches it
/// supports cycling through tem as the user continually presses tab.
/// </summary>
/// <param name="context">Information about the tab completion</param>
/// <param name="completion">The variable that you should assign the completed string to if you find a match.</param>
/// <returns>true if the tab completion was successful, false otherwise</returns>
public bool TryComplete(TabCompletionContext context, out string completion)
{
return TryComplete(context.Shift, context.CompletionCandidate, out completion);
}
internal static TabCompletionContext ConvertContext(CommandLineArgumentsDefinition definition, RichCommandLineContext innerContext)
{
TabCompletionContext context = new TabCompletionContext();
context.Definition = definition;
context.Shift = innerContext.KeyPressed.Modifiers.HasFlag(ConsoleModifiers.Shift);
context.PreviousToken = innerContext.CurrentTokenIndex > 0 ? innerContext.PreviousNonWhitespaceToken.Value : string.Empty;
context.CompletionCandidate = innerContext.CurrentToken.Value;
if (context.CompletionCandidate == " ")
{
context.CompletionCandidate = "";
}
context.CommandLineText = new ConsoleString(innerContext.Buffer).ToString();
context.TargetAction = FindContextualAction(innerContext.Tokens.FirstOrDefault().Value, definition);
context.TargetArgument = FindContextualArgument(context.PreviousToken, context.TargetAction, definition);
return context;
}
public bool TryComplete(TabCompletionContext context, out string completion)
{
return source.TryComplete(context, out completion);
}
public bool TryComplete(TabCompletionContext context, out string completion)
{
return TryComplete(context.Shift, context.CompletionCandidate, out completion);
}
public bool TryComplete(TabCompletionContext context, out string completion)
{
if (context.TargetArgument == Target)
{
return WrappedSource.TryComplete(context, out completion);
}
else
{
completion = null;
return false;
}
}
public bool TryComplete(TabCompletionContext context, out string completion)
{
completion = null;
try
{
context.CompletionCandidate = context.CompletionCandidate.Replace("\"", "");
if (context.CompletionCandidate == "")
{
context.CompletionCandidate = lastSoFar ?? ".\\";
}
if (context.CompletionCandidate == lastCompletion)
{
context.CompletionCandidate = lastSoFar;
}
else
{
tabIndex = -1;
}
var dir = Path.GetDirectoryName(context.CompletionCandidate);
if (Path.IsPathRooted(context.CompletionCandidate) == false)
{
dir = Environment.CurrentDirectory;
context.CompletionCandidate = ".\\" + context.CompletionCandidate;
}
if (Directory.Exists(dir) == false)
{
return(false);
}
var rest = Path.GetFileName(context.CompletionCandidate);
var matches = from f in Directory.GetFiles(dir)
where f.ToLower().StartsWith(Path.GetFullPath(context.CompletionCandidate).ToLower())
select f;
var matchesArray = (matches.Union(from d in Directory.GetDirectories(dir)
where d.ToLower().StartsWith(Path.GetFullPath(context.CompletionCandidate).ToLower())
select d)).ToArray();
if (matchesArray.Length > 0)
{
tabIndex = context.Shift ? tabIndex - 1 : tabIndex + 1;
if (tabIndex < 0)
{
tabIndex = matchesArray.Length - 1;
}
if (tabIndex >= matchesArray.Length)
{
tabIndex = 0;
}
completion = matchesArray[tabIndex];
if (completion.Contains(" "))
{
completion = '"' + completion + '"';
}
lastSoFar = context.CompletionCandidate;
lastCompletion = completion.Replace("\"", "");
return(true);
}
else
{
lastSoFar = null;
lastCompletion = null;
tabIndex = -1;
return(false);
}
}
catch (UnauthorizedAccessException)
{
return(false);
}
catch (Exception ex)
{
// TODO P2 - Why do we have tracing here?
Trace.TraceError(ex.ToString());
return(false); // We don't want a bug in this logic to break the app
}
}