RefreshTokenInfo() public method

Runs the tokenizer if it hasn't already been run on the current key press. You can pass a force flag if you want to force the tokenizer to run. You would need to do this only if you've manually changed the buffer within your handler.
public RefreshTokenInfo ( bool force = false ) : void
force bool If true, then the tokenizer is run no matter what. If false, the tokenizer only runs if it hasn't yet run on this keystroke.
return void
 /// <summary>
 /// Handles the tab key by calling all registered tab completion handlers.
 /// </summary>
 /// <param name="context">Context that can be used to inspect the current command line to perform tab completion</param>
 public void Handle(RichCommandLineContext context)
 {
     context.Intercept = true;
     context.RefreshTokenInfo();
     try
     {
         foreach (var handler in TabCompletionHandlers)
         {
             if (handler.TryTabComplete(context))
             {
                 break;
             }
         }
     }
     catch(Exception ex)
     {
         if (ThrowOnTabCompletionHandlerException)
         {
             throw;
         }
         else
         {
             PowerLogger.LogLine("Tab completion handler threw exception: " + ex.ToString());
         }
     }
 }
Example #2
0
 /// <summary>
 /// Handles the tab key by calling all registered tab completion handlers.
 /// </summary>
 /// <param name="context">Context that can be used to inspect the current command line to perform tab completion</param>
 public void Handle(RichCommandLineContext context)
 {
     context.Intercept = true;
     context.RefreshTokenInfo();
     try
     {
         foreach (var handler in TabCompletionHandlers)
         {
             if (handler.TryTabComplete(context))
             {
                 break;
             }
         }
     }
     catch (Exception ex)
     {
         if (ThrowOnTabCompletionHandlerException)
         {
             throw;
         }
         else
         {
             PowerLogger.LogLine("Tab completion handler threw exception: " + ex.ToString());
         }
     }
 }
        /// <summary>
        /// Creates a result that replaces the current token with the given selection.
        /// </summary>
        /// <param name="context">Context from the parent reader</param>
        /// <param name="selection">The selection string to insert</param>
        /// <returns>a result that replaces the current token with the given selection</returns>
        public static ContextAssistResult CreateInsertResult(RichCommandLineContext context, ConsoleString selection)
        {
            context.RefreshTokenInfo();
            var ret = new ContextAssistResult();

            bool hasInserted = false;
            var  newBuffer   = new List <ConsoleCharacter>();

            foreach (var token in context.Tokens)
            {
                if (context.IsCursorOnToken(token))
                {
                    if (string.IsNullOrWhiteSpace(token.Value))
                    {
                        newBuffer.AddRange(context.GetBufferSubstringFromToken(token));
                        ret.ConsoleRefreshLeftOffset = selection.Length;
                    }
                    else
                    {
                        var tokenOffset = context.BufferPosition - token.StartIndex;
                        ret.ConsoleRefreshLeftOffset = selection.Length - tokenOffset;
                    }

                    if (hasInserted == false)
                    {
                        hasInserted = true;
                        // cursor is on the current token
                        newBuffer.AddRange(selection);
                    }
                }
                else
                {
                    // this token not be modified
                    newBuffer.AddRange(context.GetBufferSubstringFromToken(token));
                }
            }

            if (hasInserted == false)
            {
                hasInserted = true;
                // cursor is on the current token
                newBuffer.AddRange(selection);
                ret.ConsoleRefreshLeftOffset = selection.Length;
            }

            ret.StatusCode = ContextAssistResultStatusCode.Success;
            ret.NewBuffer  = newBuffer;
            return(ret);
        }
        public void Handle(RichCommandLineContext context)
        {
            if (context.KeyPressed.Modifiers.HasFlag(ConsoleModifiers.Control) == false)
            {
                return;
            }

            context.Intercept = true;
            context.RefreshTokenInfo();

            if (ContextAssistProvider == null || ContextAssistProvider.CanAssist(context) == false)
            {
                return;
            }

            int left = context.Console.CursorLeft;
            int top = context.Console.CursorTop;

            ContextAssistResult result = ContextAssistResult.NoOp;

            try
            {
                context.Console.WriteLine("\n");
                result = ContextAssistProvider.DrawMenu(context);

                while (result.IsTerminal == false)
                {
                    var key = context.Console.ReadKey(true);
                    result = ContextAssistProvider.OnKeyboardInput(context, key);
                }
            }
            finally
            {
                ContextAssistProvider.ClearMenu(context);
                context.Console.CursorLeft = left;
                context.Console.CursorTop = top;
            }

            if (result.StatusCode == ContextAssistResultStatusCode.Success)
            {
                context.ClearConsole();
                context.Console.CursorLeft = left;
                context.Console.CursorTop = top;
                context.Buffer.Clear();
                context.Buffer.AddRange(result.NewBuffer);
                context.RefreshConsole(result.ConsoleRefreshLeftOffset, 0);
            }
        }
Example #5
0
        public void Handle(RichCommandLineContext context)
        {
            if (context.KeyPressed.Modifiers.HasFlag(ConsoleModifiers.Control) == false)
            {
                return;
            }

            context.Intercept = true;
            context.RefreshTokenInfo();

            if (ContextAssistProvider == null || ContextAssistProvider.CanAssist(context) == false)
            {
                return;
            }

            int left = context.Console.CursorLeft;
            int top  = context.Console.CursorTop;

            ContextAssistResult result = ContextAssistResult.NoOp;

            try
            {
                context.Console.WriteLine("\n");
                result = ContextAssistProvider.DrawMenu(context);

                while (result.IsTerminal == false)
                {
                    var key = context.Console.ReadKey(true);
                    result = ContextAssistProvider.OnKeyboardInput(context, key);
                }
            }
            finally
            {
                ContextAssistProvider.ClearMenu(context);
                context.Console.CursorLeft = left;
                context.Console.CursorTop  = top;
            }

            if (result.StatusCode == ContextAssistResultStatusCode.Success)
            {
                context.ClearConsole();
                context.Console.CursorLeft = left;
                context.Console.CursorTop  = top;
                context.Buffer.Clear();
                context.Buffer.AddRange(result.NewBuffer);
                context.RefreshConsole(result.ConsoleRefreshLeftOffset, 0);
            }
        }
        /// <summary>
        /// The implementation of ISyntaxHighlighter that uses the configuration you've created to perform syntax highlighting.
        /// </summary>
        /// <param name="readerContext">Context that is used internally</param>
        /// <returns>true if any highlighting changes were made, false otherwise</returns>
        public bool TryHighlight(RichCommandLineContext readerContext)
        {
            readerContext.RefreshTokenInfo();
            bool didWork = false;

            for (int i = 0; i < readerContext.Tokens.Count; i++)
            {
                if (string.IsNullOrWhiteSpace(readerContext.Tokens[i].Value))
                {
                    continue;
                }

                var highlighterContext = new HighlighterContext()
                {
                    CurrentToken      = readerContext.Tokens[i],
                    CurrentTokenIndex = i,
                    IsLastToken       = i == readerContext.Tokens.Count - 1,
                };

                bool didWorkOnThisToken = false;

                bool shouldBeHighlightedByAtLeastOneHighlighter = false;
                foreach (var tokenHighlighter in TokenHighlighters)
                {
                    bool shouldBeHighlightedByThisHighlighter = tokenHighlighter.ShouldBeHighlighted(readerContext, highlighterContext);
                    shouldBeHighlightedByAtLeastOneHighlighter = shouldBeHighlightedByAtLeastOneHighlighter || shouldBeHighlightedByThisHighlighter;
                    if (shouldBeHighlightedByThisHighlighter)
                    {
                        didWorkOnThisToken = EnsureHighlighted(highlighterContext.CurrentToken, readerContext, tokenHighlighter.HighlightForegroundColor, tokenHighlighter.HighlightBackgroundColor);
                        break;
                    }
                }

                if (shouldBeHighlightedByAtLeastOneHighlighter == false)
                {
                    didWorkOnThisToken = EnsureHighlighted(highlighterContext.CurrentToken, readerContext, null, null);
                }

                didWork = didWork || didWorkOnThisToken;
            }

            return(didWork);
        }
Example #7
0
 /// <summary>
 /// Handles the tab key by calling all registered tab completion handlers.
 /// </summary>
 /// <param name="context">Context that can be used to inspect the current command line to perform tab completion</param>
 public void Handle(RichCommandLineContext context)
 {
     context.Intercept = true;
     context.RefreshTokenInfo();
     try
     {
         foreach (var handler in TabCompletionHandlers)
         {
             if (handler.TryTabComplete(context))
             {
                 break;
             }
         }
     }
     catch (Exception)
     {
         if (ThrowOnTabCompletionHandlerException)
         {
             throw;
         }
     }
 }
        /// <summary>
        /// The implementation of ISyntaxHighlighter that uses the configuration you've created to perform syntax highlighting.
        /// </summary>
        /// <param name="readerContext">Context that is used internally</param>
        /// <returns>true if any highlighting changes were made, false otherwise</returns>
        public bool TryHighlight(RichCommandLineContext readerContext)
        {
            readerContext.RefreshTokenInfo();
            bool didWork = false;
            for (int i = 0; i < readerContext.Tokens.Count; i++)
            {
                if(string.IsNullOrWhiteSpace(readerContext.Tokens[i].Value))
                {
                    continue;
                }

                var highlighterContext = new HighlighterContext()
                {
                    CurrentToken = readerContext.Tokens[i],
                    CurrentTokenIndex = i,
                    IsLastToken = i == readerContext.Tokens.Count-1,

                };

                bool didWorkOnThisToken = false;

                bool shouldBeHighlightedByAtLeastOneHighlighter = false;
                foreach (var tokenHighlighter in TokenHighlighters)
                {
                    bool shouldBeHighlightedByThisHighlighter = tokenHighlighter.ShouldBeHighlighted(readerContext, highlighterContext);
                    shouldBeHighlightedByAtLeastOneHighlighter = shouldBeHighlightedByAtLeastOneHighlighter || shouldBeHighlightedByThisHighlighter;
                    if (shouldBeHighlightedByThisHighlighter)
                    {
                        didWorkOnThisToken = EnsureHighlighted(highlighterContext.CurrentToken, readerContext, tokenHighlighter.HighlightForegroundColor, tokenHighlighter.HighlightBackgroundColor);
                        break;
                    }
                }

                if(shouldBeHighlightedByAtLeastOneHighlighter == false)
                {
                    didWorkOnThisToken = EnsureHighlighted(highlighterContext.CurrentToken, readerContext, null, null);
                }

                didWork = didWork || didWorkOnThisToken;
            }

            return didWork;
        }
        /// <summary>
        /// Creates a result that replaces the current token with the given selection.
        /// </summary>
        /// <param name="context">Context from the parent reader</param>
        /// <param name="selection">The selection string to insert</param>
        /// <returns>a result that replaces the current token with the given selection</returns>
        public static ContextAssistResult CreateInsertResult(RichCommandLineContext context, ConsoleString selection)
        {
            context.RefreshTokenInfo();
            var ret = new ContextAssistResult();

            bool hasInserted = false;
            var newBuffer = new List<ConsoleCharacter>();
            foreach (var token in context.Tokens)
            {
                if (context.IsCursorOnToken(token))
                {
                    if (string.IsNullOrWhiteSpace(token.Value))
                    {
                        newBuffer.AddRange(context.GetBufferSubstringFromToken(token));
                        ret.ConsoleRefreshLeftOffset = selection.Length;
                    }
                    else
                    {
                        var tokenOffset = context.BufferPosition - token.StartIndex;
                        ret.ConsoleRefreshLeftOffset = selection.Length - tokenOffset;
                    }

                    if (hasInserted == false)
                    {
                        hasInserted = true;
                        // cursor is on the current token
                        newBuffer.AddRange(selection);
                    }
                }
                else
                {
                    // this token not be modified
                    newBuffer.AddRange(context.GetBufferSubstringFromToken(token));
                }
            }

            if (hasInserted == false)
            {
                hasInserted = true;
                // cursor is on the current token
                newBuffer.AddRange(selection);
                ret.ConsoleRefreshLeftOffset = selection.Length;
            }

            ret.StatusCode = ContextAssistResultStatusCode.Success;
            ret.NewBuffer = newBuffer;
            return ret;
        }