Preparation for 0.55.1 EAP release

Macros record input keystrokes, not mapped keystrokes

This PR fixes VIM-1835 by recording input keystrokes for macros instead of the mapped keystrokes.

This PR is also required as a stepping stone for showcmd support (VIM-434), as both issues require refactoring KeyHandler#handleKey, and I thought it best to separate the issues.

A few other things were fixed as part of this PR:

VIM-1899 - support an argument to the :registers command
VIM-1900 - improve output of :registers, :marks, :jumps and :ascii

CHANGES.md

@@ -16,13 +16,24 @@ It is important to distinguish EAP from traditional pre-release software.
 Please note that the quality of EAP versions may at times be way below even
 usual beta standards.
 
-[To Be Released]
+To Be Released
 --------------
 
-_Available since 0.54.1 EAP:_
+_Available since 0.55.1 EAP:_
+
+**Fixes:**
+* [VIM-1284](https://youtrack.jetbrains.com/issue/VIM-1284) Fix mapping of digits
+* Fix handling of counts on both operator and motion, e.g. `3d2w` deletes 6 words, instead of 32
+* Allow mapping of `<C-K>` and `<C-V>`/`<C-Q>`
+* [VIM-1899](https://youtrack.jetbrains.com/issue/VIM-1899) Add argument to `:registers` command
+* [VIM-1835](https://youtrack.jetbrains.com/issue/VIM-1835) Macros record input keystrokes instead of mapped keystrokes
+* [VIM-1900](https://youtrack.jetbrains.com/issue/VIM-1900) Ensure non-printable output for `:registers`, `:marks` and `:jumps` is encoded correctly
+
+0.55, 2020-01-20
+--------------
 
 **Features:**
-* Surround and Commentary extensions can be repeated with a dot command ([VIM-1118](https://youtrack.jetbrains.com/issue/VIM-1118))
+* Surround and Commentary extensions support repeating with a dot command ([VIM-1118](https://youtrack.jetbrains.com/issue/VIM-1118))
 * Support XDG settings standard ([VIM-664](https://youtrack.jetbrains.com/issue/VIM-664))
 * Add option to remove the status bar icon ([VIM-1847](https://youtrack.jetbrains.com/issue/VIM-1847))
 
@@ -43,14 +54,11 @@ _Available since 0.54.1 EAP:_
 * [VIM-1853](https://youtrack.jetbrains.com/issue/VIM-1853) Fix marks for disposed projects
 * [VIM-1858](https://youtrack.jetbrains.com/issue/VIM-1858) Fix imap for autocomplete
 * [VIM-1362](https://youtrack.jetbrains.com/issue/VIM-1362) Search with confirm doesn't scroll down far enough
-
-_To Be Released:_
-
-**Fixes:**
 * [VIM-1875](https://youtrack.jetbrains.com/issue/VIM-1875) Fix `isk` in `~/.ideaivmrc`
 * [VIM-1874](https://youtrack.jetbrains.com/issue/VIM-1874) Fix `set clipboard=unnamed` execution from `~/.ideavimrc`
 * [VIM-1878](https://youtrack.jetbrains.com/issue/VIM-1878) Fix `c` command after extract method action
 * [VIM-1884](https://youtrack.jetbrains.com/issue/VIM-1884) Show quickDoc during popup with `CTRL-J`
+* [VIM-987](https://youtrack.jetbrains.com/issue/VIM-987) Fix arrow keys for the NEO keyboard
 
 0.54, 2019-11-20
 --------------

README.md

@@ -93,6 +93,7 @@ Supported:
 
 Emulated Vim plugins:
 
+* vim-easymotion
 * vim-surround
 * vim-multiple-cursors
 * vim-commentary
@@ -128,7 +129,7 @@ have `-Duser.home=/my/alternate/home` then IdeaVim will source
 `/my/alternate/home/.ideavimrc` instead of `~/.ideavimrc`.
 
 Alternatively, you can set up initialization commands using [XDG](https://specifications.freedesktop.org/basedir-spec/basedir-spec-latest.html) standard.
-Put your settings to `$XDG_CONFIG_HOME$/ideavim/ideavimrc` file.     [To Be Released]
+Put your settings to `$XDG_CONFIG_HOME$/ideavim/ideavimrc` file.
 
 
 Emulated Vim Plugins

doc/set-commands.md

@@ -103,10 +103,20 @@ The following `:set` commands can appear in `~/.ideavimrc` or be set manually in
                   If true, join command will be performed via IDE
                   See wiki/`ideajoin` examples
 
-    `ideastatusbar`  `ideastatusbar` Boolean (default true)    [To Be Released]
+    `ideastatusbar`  `ideastatusbar` Boolean (default true)
     
                   If false, IdeaVim icon won't be shown in the status bar.
                   Works only from `~/.ideavimrc` after the IDE restart.
                   
+    `lookupkeys`    `lookupkeys`   List of strings
+    
+                  List of keys that should be processed by the IDE during the active lookup (autocompletion).
+                  For example, <Tab> and <Enter> are used by the IDE to finish the lookup,
+                        but <C-W> should be passed to IdeaVim.
+                  Default value: 
+                        "<Tab>", "<Down>", "<Up>", "<Enter>", "<Left>", "<Right>",
+                        "<C-Down>", "<C-Up>", "<PageUp>", "<PageDown>",
+                        "<C-J>", "<C-Q>"
+
     ----------
     [1] - cursor keys, <End>, <Home>, <PageUp> and <PageDown>

gradle.properties

@@ -1,6 +1,6 @@
 # suppress inspection "UnusedProperty" for whole file
 
-ideaVersion=2019.3
+ideaVersion=201-EAP-SNAPSHOT
 downloadIdeaSources=true
 instrumentPluginCode=true
 version=SNAPSHOT

resources/META-INF/includes/VimActions.xml

@@ -197,6 +197,8 @@
     <vimAction implementation="com.maddyhome.idea.vim.action.change.insert.InsertSingleCommandAction" mappingModes="I" keys="«C-O»"/>
     <vimAction implementation="com.maddyhome.idea.vim.action.change.insert.VisualBlockInsertAction" mappingModes="X" keys="I"/>
     <vimAction implementation="com.maddyhome.idea.vim.action.change.insert.VisualBlockAppendAction" mappingModes="X" keys="A"/>
+    <vimAction implementation="com.maddyhome.idea.vim.action.change.insert.StartInsertDigraphAction" mappingModes="IC" keys="«C-K»"/>
+    <vimAction implementation="com.maddyhome.idea.vim.action.change.insert.StartInsertLiteralAction" mappingModes="IC" keys="«C-V»,«C-Q»"/>
 
     <!-- Delete -->
     <vimAction implementation="com.maddyhome.idea.vim.action.change.delete.DeleteCharacterAction" mappingModes="N" keys="«DEL»"/>

resources/META-INF/plugin.xml

@@ -3,8 +3,10 @@
   <id>IdeaVIM</id>
   <change-notes><![CDATA[
       <ul>
-        <li>Fix `imap jk <ESC>` for the active autocompletion lookup</li>
+        <li>Support dot command for Surround and Commentary extensions</li>
-        <li>Surround and Commentary extensions can be repeated with a dot command</li>
+        <li>Support XDG settings standard</li>
+        <li>Add option to remove the status bar icon</li>
+        <li>Various bug fixes</li>
       </ul>
       <p>See also the complete <a href="https://github.com/JetBrains/ideavim/blob/master/CHANGES.md">changelog</a>.</p>
     ]]></change-notes>
@@ -29,6 +31,9 @@
   <resource-bundle xmlns="">messages</resource-bundle>
 
   <application-components>
+    <component>
+      <implementation-class>com.maddyhome.idea.vim.DynamicLoaderStopper</implementation-class>
+    </component>
     <component>
       <implementation-class>com.maddyhome.idea.vim.VimPlugin</implementation-class>
     </component>
@@ -45,10 +50,10 @@
   <extensionPoints>
     <extensionPoint name="vimExtension" interface="com.maddyhome.idea.vim.extension.VimExtension"/>
 
-    <extensionPoint name="vimExCommand" beanClass="com.maddyhome.idea.vim.ex.ExBeanClass">
+    <extensionPoint name="vimExCommand" beanClass="com.maddyhome.idea.vim.ex.ExBeanClass" dynamic="true">
       <with attribute="implementation" implements="com.maddyhome.idea.vim.ex.CommandHandler"/>
     </extensionPoint>
-    <extensionPoint name="vimAction" beanClass="com.maddyhome.idea.vim.handler.ActionBeanClass">
+    <extensionPoint name="vimAction" beanClass="com.maddyhome.idea.vim.handler.ActionBeanClass" dynamic="true">
       <with attribute="implementation" implements="com.maddyhome.idea.vim.handler.EditorActionHandlerBase"/>
     </extensionPoint>
   </extensionPoints>
@@ -59,11 +64,11 @@
     <statusBarWidgetProvider implementation="com.maddyhome.idea.vim.StatusBarIconProvider"/>
   </extensions>
 
-  <xi:include href="/META-INF/ApplicationServices.xml" xpointer="xpointer(/idea-plugin/*)"/>
+  <xi:include href="/META-INF/includes/ApplicationServices.xml" xpointer="xpointer(/idea-plugin/*)"/>
 
-  <xi:include href="/META-INF/VimActions.xml" xpointer="xpointer(/idea-plugin/*)"/>
+  <xi:include href="/META-INF/includes/VimActions.xml" xpointer="xpointer(/idea-plugin/*)"/>
-  <xi:include href="/META-INF/VimExCommands.xml" xpointer="xpointer(/idea-plugin/*)"/>
+  <xi:include href="/META-INF/includes/VimExCommands.xml" xpointer="xpointer(/idea-plugin/*)"/>
-  <xi:include href="/META-INF/VimExtensions.xml" xpointer="xpointer(/idea-plugin/*)"/>
+  <xi:include href="/META-INF/includes/VimExtensions.xml" xpointer="xpointer(/idea-plugin/*)"/>
 
   <actions>
     <action id="VimPluginToggle" class="com.maddyhome.idea.vim.action.VimPluginToggleAction" text="Vim Emulator" description="Toggle the vim plugin On/off">

resources/messages.properties

@@ -1,6 +1,6 @@
 #
 # IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
-# Copyright (C) 2003-2019 The IdeaVim authors
+# Copyright (C) 2003-2020 The IdeaVim authors
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by

settings.gradle

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/DynamicLoaderStopper.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -16,13 +16,9 @@
  * along with this program. If not, see <https://www.gnu.org/licenses/>.
  */
 
-package com.maddyhome.idea.vim.ex;
+package com.maddyhome.idea.vim
 
 /**
- * Exception class
+ * This class prevents dynamic loading of IdeaVim plugin
  */
-public class InvalidCommandException extends ExException {
+class DynamicLoaderStopper
-  public InvalidCommandException(String message, String cmd) {
-    super(message);
-  }
-}

src/com/maddyhome/idea/vim/EventFacade.java

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/KeyHandler.java

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -34,11 +34,8 @@ import com.intellij.openapi.editor.actionSystem.TypedActionHandler;
 import com.intellij.openapi.project.Project;
 import com.intellij.openapi.ui.popup.JBPopupFactory;
 import com.intellij.openapi.ui.popup.ListPopup;
-import com.maddyhome.idea.vim.action.DuplicableOperatorAction;
 import com.maddyhome.idea.vim.action.change.VimRepeater;
 import com.maddyhome.idea.vim.action.macro.ToggleRecordingAction;
-import com.maddyhome.idea.vim.action.motion.search.SearchEntryFwdAction;
-import com.maddyhome.idea.vim.action.motion.search.SearchEntryRevAction;
 import com.maddyhome.idea.vim.command.*;
 import com.maddyhome.idea.vim.extension.VimExtensionHandler;
 import com.maddyhome.idea.vim.group.ChangeGroup;
@@ -66,10 +63,9 @@ import java.util.stream.Collectors;
 
 import static com.intellij.openapi.actionSystem.CommonDataKeys.*;
 import static com.intellij.openapi.actionSystem.PlatformDataKeys.PROJECT_FILE_DIRECTORY;
-import static com.maddyhome.idea.vim.helper.StringHelper.parseKeys;
 
 /**
- * This handlers every keystroke that the user can argType except those that are still valid hotkeys for various Idea
+ * This handles every keystroke that the user can argType except those that are still valid hotkeys for various Idea
  * actions. This is a singleton.
  */
 public class KeyHandler {
@@ -131,7 +127,7 @@ public class KeyHandler {
                         ActionManager.getInstance(), 0);
 
     if (action instanceof ActionGroup && !((ActionGroup)action).canBePerformed(context)) {
-      // Some of the AcitonGroups should not be performed, but shown as a popup
+      // Some ActionGroups should not be performed, but shown as a popup
       ListPopup popup = JBPopupFactory.getInstance()
         .createActionGroupPopup(event.getPresentation().getText(), (ActionGroup)action, context, false, null, -1);
 
@@ -147,8 +143,8 @@ public class KeyHandler {
       return true;
     }
     else {
-      // beforeActionPerformedUpdate should be called to update the action. It fixes some rider-specific problems
+      // beforeActionPerformedUpdate should be called to update the action. It fixes some rider-specific problems.
-      //   because rider use async update method. See VIM-1819
+      //   because rider use async update method. See VIM-1819.
       action.beforeActionPerformedUpdate(event);
       if (event.getPresentation().isEnabled()) {
         action.actionPerformed(event);
@@ -158,6 +154,16 @@ public class KeyHandler {
     return false;
   }
 
+  public void startDigraphSequence(@NotNull Editor editor) {
+    final CommandState editorState = CommandState.getInstance(editor);
+    editorState.startDigraphSequence();
+  }
+
+  public void startLiteralSequence(@NotNull Editor editor) {
+    final CommandState editorState = CommandState.getInstance(editor);
+    editorState.startLiteralSequence();
+  }
+
   /**
    * This is the main key handler for the Vim plugin. Every keystroke not handled directly by Idea is sent here for
    * processing.
@@ -200,124 +206,90 @@ public class KeyHandler {
     // All the editor actions should be performed with top level editor!!!
     // Be careful: all the EditorActionHandler implementation should correctly process InjectedEditors
     editor = HelperKt.getTopLevelEditor(editor);
+
     final CommandState editorState = CommandState.getInstance(editor);
+    final CommandBuilder commandBuilder = editorState.getCommandBuilder();
 
     // If this is a "regular" character keystroke, get the character
     char chKey = key.getKeyChar() == KeyEvent.CHAR_UNDEFINED ? 0 : key.getKeyChar();
 
-    final boolean isRecording = editorState.isRecording();
+    // We only record unmapped keystrokes. If we've recursed to handle mapping, don't record anything.
-    boolean shouldRecord = true;
+    boolean shouldRecord = handleKeyRecursionCount == 0 && editorState.isRecording();
+    handleKeyRecursionCount++;
 
-    // Check for command count before key mappings - otherwise e.g. ':map 0 ^' breaks command counts that contain a zero
+    try {
-    if (isCommandCount(editorState, chKey)) {
+      if (!allowKeyMappings || !handleKeyMapping(editor, key, context)) {
-      // Update the count
+        if (isCommandCountKey(chKey, editorState)) {
-      count = count * 10 + (chKey - '0');
+          commandBuilder.addCountCharacter(chKey);
-    }
+        } else if (isDeleteCommandCountKey(key, editorState)) {
-    else if (!waitCommandFinish(editor) && allowKeyMappings && handleKeyMapping(editor, key, context)) {
+          commandBuilder.deleteCountCharacter();
-      if (editorState.getMappingMode() != MappingMode.OP_PENDING ||
+        } else if (isEditorReset(key, editorState)) {
-          currentCmd.isEmpty() ||
+          handleEditorReset(editor, key, context, editorState);
-          currentCmd.peek().getArgument() == null ||
-          Objects.requireNonNull(currentCmd.peek().getArgument()).getType() != Argument.Type.OFFSETS) {
-        return;
-      }
-    }
-    // Pressing delete while entering a count "removes" the last digit entered
-    // Unlike the digits, this must be checked *after* checking for key mappings
-    else if (isDeleteCommandCount(key, editorState)) {
-      // "Remove" the last digit sent to us
-      count /= 10;
-    }
-    else if (isEditorReset(key, editorState)) {
-      handleEditorReset(editor, key, context);
         }
         // If we got this far the user is entering a command or supplying an argument to an entered command.
         // First let's check to see if we are at the point of expecting a single character argument to a command.
-    else if (currentArg == Argument.Type.CHARACTER) {
+        else if (isExpectingCharArgument(commandBuilder)) {
-      handleCharArgument(key, chKey);
+          handleCharArgument(key, chKey, editorState);
         }
         // If we are this far, then the user must be entering a command or a non-single-character argument
-    // to an entered command. Let's figure out which it is
+        // to an entered command. Let's figure out which it is.
-    else {
+        else if (!handleDigraph(editor, key, context, editorState)) {
-      // For debugging purposes we track the keys entered for this command
+
-      keys.add(key);
+          commandBuilder.addKey(key);
 
           // Ask the key/action tree if this is an appropriate key at this point in the command and if so,
           // return the node matching this keystroke
-      Node node = editorState.getCurrentNode().get(key);
+          final Node node = mapOpCommand(key, commandBuilder.getChildNode(key), editorState);
-
-      if (handleDigraph(editor, key, context, node)) return;
-
-      node = mapOpCommand(key, node, editorState);
 
           if (node instanceof CommandNode) {
             handleCommandNode(editor, context, key, (CommandNode) node, editorState);
-      }
+          } else if (node instanceof CommandPartNode) {
-      else if (node instanceof CommandPartNode) {
+            commandBuilder.setCurrentCommandPartNode((CommandPartNode) node);
-        editorState.setCurrentNode((CommandPartNode)node);
+          } else {
-      }
-      else {
-        if (lastWasBS && lastChar != 0 && OptionsManager.INSTANCE.getDigraph().isSet()) {
-          char dig = VimPlugin.getDigraph().getDigraph(lastChar, key.getKeyChar());
-          key = KeyStroke.getKeyStroke(dig);
-        }
-
             // If we are in insert/replace mode send this key in for processing
             if (editorState.getMode() == CommandState.Mode.INSERT || editorState.getMode() == CommandState.Mode.REPLACE) {
-          if (!VimPlugin.getChange().processKey(editor, context, key)) {
+              shouldRecord &= VimPlugin.getChange().processKey(editor, context, key);
-            shouldRecord = false;
+            } else if (editorState.getMode() == CommandState.Mode.SELECT) {
-          }
+              shouldRecord &= VimPlugin.getChange().processKeyInSelectMode(editor, context, key);
-        }
+            } else if (editorState.getMappingState().getMappingMode() == MappingMode.CMD_LINE) {
-        else if (editorState.getMode() == CommandState.Mode.SELECT) {
+              shouldRecord &= VimPlugin.getProcess().processExKey(editor, key);
-          if (!VimPlugin.getChange().processKeyInSelectMode(editor, context, key)) {
-            shouldRecord = false;
-          }
-        }
-        else if (editorState.getMappingMode() == MappingMode.CMD_LINE) {
-          if (!VimPlugin.getProcess().processExKey(editor, key)) {
-            shouldRecord = false;
-          }
             }
             // If we get here then the user has entered an unrecognized series of keystrokes
             else {
-          state = State.BAD_COMMAND;
+              commandBuilder.setCommandState(CurrentCommandState.BAD_COMMAND);
             }
 
-        lastChar = lastWasBS && lastChar != 0 ? 0 : key.getKeyChar();
-        lastWasBS = false;
             partialReset(editor);
           }
         }
+      }
+    }
+    finally {
+      handleKeyRecursionCount--;
+    }
 
-    // Do we have a fully entered command at this point? If so, lets execute it
+    // Do we have a fully entered command at this point? If so, let's execute it.
-    if (state == State.READY) {
+    if (commandBuilder.isReady()) {
       executeCommand(editor, key, context, editorState);
     }
-    else if (state == State.BAD_COMMAND) {
+    else if (commandBuilder.isBad()) {
-      if (editorState.getMappingMode() == MappingMode.OP_PENDING) {
+      editorState.resetOpPending();
-        editorState.popState();
-      }
       VimPlugin.indicateError();
       reset(editor);
     }
-    else if (isRecording && shouldRecord) {
+
+    // Don't record the keystroke that stops the recording (unmapped this is `q`)
+    if (shouldRecord && editorState.isRecording()) {
       VimPlugin.getRegister().recordKeyStroke(key);
     }
   }
 
-  private boolean waitCommandFinish(@NotNull Editor editor) {
-    return !(CommandState.getInstance(editor).getCurrentNode() instanceof RootNode);
-  }
-
   /**
    * See the description for {@link com.maddyhome.idea.vim.action.DuplicableOperatorAction}
    */
   private Node mapOpCommand(KeyStroke key, Node node, @NotNull CommandState editorState) {
-    if (editorState.getMappingMode() == MappingMode.OP_PENDING && !currentCmd.empty()) {
+    if (editorState.isDuplicateOperatorKeyStroke(key)) {
-      EditorActionHandlerBase action = currentCmd.peek().getAction();
+      return editorState.getCommandBuilder().getChildNode(KeyStroke.getKeyStroke('_'));
-      if (action instanceof DuplicableOperatorAction &&
-          ((DuplicableOperatorAction)action).getDuplicateWith() == key.getKeyChar()) {
-        return editorState.getCurrentNode().get(KeyStroke.getKeyStroke('_'));
-      }
     }
     return node;
   }
@@ -334,8 +306,8 @@ public class KeyHandler {
     return true;
   }
 
-  private void handleEditorReset(@NotNull Editor editor, @NotNull KeyStroke key, @NotNull final DataContext context) {
+  private void handleEditorReset(@NotNull Editor editor, @NotNull KeyStroke key, @NotNull final DataContext context, @NotNull CommandState editorState) {
-    if (count == 0 && currentArg == null && currentCmd.size() == 0) {
+    if (editorState.getCommandBuilder().isAtDefaultState()) {
       RegisterGroup register = VimPlugin.getRegister();
       if (register.getCurrentRegister() == register.getDefaultRegister()) {
         if (key.getKeyCode() == KeyEvent.VK_ESCAPE) {
@@ -352,57 +324,116 @@ public class KeyHandler {
   private boolean handleKeyMapping(@NotNull final Editor editor,
                                    @NotNull final KeyStroke key,
                                    @NotNull final DataContext context) {
-    if (state == State.CHAR_OR_DIGRAPH) return false;
 
     final CommandState commandState = CommandState.getInstance(editor);
-    commandState.stopMappingTimer();
+    final MappingState mappingState = commandState.getMappingState();
+    final CommandBuilder commandBuilder = commandState.getCommandBuilder();
 
-    final MappingMode mappingMode = commandState.getMappingMode();
+    if (commandBuilder.isAwaitingCharOrDigraphArgument()
+      || commandBuilder.isBuildingMultiKeyCommand()
+      || isMappingDisabledForKey(key, commandState)) {
+      return false;
+    }
 
-    final List<KeyStroke> mappingKeys = commandState.getMappingKeys();
+    mappingState.stopMappingTimer();
-    final List<KeyStroke> fromKeys = new ArrayList<>(mappingKeys);
-    fromKeys.add(key);
 
-    final KeyMapping mapping = VimPlugin.getKey().getKeyMapping(mappingMode);
+    // Save the unhandled key strokes until we either complete or abandon the sequence.
-    final MappingInfo currentMappingInfo = mapping.get(fromKeys);
+    mappingState.addKey(key);
-    final MappingInfo prevMappingInfo = mapping.get(mappingKeys);
-    final MappingInfo mappingInfo = currentMappingInfo != null ? currentMappingInfo : prevMappingInfo;
 
+    final KeyMapping mapping = VimPlugin.getKey().getKeyMapping(mappingState.getMappingMode());
+
+    // Returns true if any of these methods handle the key. False means that the key is unrelated to mapping and should
+    // be processed as normal.
+    return handleUnfinishedMappingSequence(editor, mappingState, mapping)
+      || handleCompleteMappingSequence(editor, context, commandState, mappingState, mapping, key)
+      || handleAbandonedMappingSequence(editor, mappingState, context);
+  }
+
+  private boolean isMappingDisabledForKey(@NotNull KeyStroke key, @NotNull CommandState commandState) {
+    // "0" can be mapped, but the mapping isn't applied when entering a count. Other digits are always mapped, even when
+    // entering a count.
+    // See `:help :map-modes`
+    return key.getKeyChar() == '0' && commandState.getCommandBuilder().getCount() > 0;
+  }
+
+  private boolean handleUnfinishedMappingSequence(@NotNull Editor editor,
+                                                  @NotNull MappingState mappingState,
+                                                  @NotNull KeyMapping mapping) {
+    // Is there at least one mapping that starts with the current sequence? This does not include complete matches,
+    // unless a sequence is also a prefix for another mapping. We eagerly evaluate the shortest mapping, so even if a
+    // mapping is a prefix, it will get evaluated when the next character is entered.
+    // Note that currentlyUnhandledKeySequence is the same as the state after commandState.getMappingKeys().add(key). It
+    // would be nice to tidy ths up
+    if (!mapping.isPrefix(mappingState.getKeys())) {
+      return false;
+    }
+
+    // If the timeout option is set, set a timer that will abandon the sequence and replay the unhandled keys unmapped.
+    // Every time a key is pressed and handled, the timer is stopped. E.g. if there is a mapping for "dweri", and the
+    // user has typed "dw" wait for the timeout, and then replay "d" and "w" without any mapping (which will of course
+    // delete a word)
     final Application application = ApplicationManager.getApplication();
-
-    if (mapping.isPrefix(fromKeys)) {
-      // Okay, there is some mapping that starts with inserted key sequence. So,
-      //   either the user will continue to enter the mapping, or (if timeout option is set)
-      //   the entered command should be executed. Here we set up the times that will execute
-      //   typed keys after some delay.
-      // E.g. there is a map for "dweri". If the user types "d", "w" they mean either "dweri" or "dw" command.
-      //   If the user will continue typing "e", "r" and "i", the timer will be cancelled. If the user will
-      //   not type anything, the "dw" command will be executed.
-      mappingKeys.add(key);
     if (!application.isUnitTestMode() && OptionsManager.INSTANCE.getTimeout().isSet()) {
-        commandState.startMappingTimer(actionEvent -> application.invokeLater(() -> {
+      mappingState.startMappingTimer(actionEvent -> application.invokeLater(() -> {
-          final KeyStroke firstKey = mappingKeys.get(0);
+
-          mappingKeys.clear();
+        final List<KeyStroke> unhandledKeys = mappingState.detachKeys();
-          if (editor.isDisposed() || firstKey.equals(parseKeys("<Plug>").get(0))) {
+
+        // TODO: I'm not sure why we abandon plugin commands here
+        // Would be useful to have a comment or a helpfully named helper method here
+        if (editor.isDisposed() || unhandledKeys.get(0).equals(StringHelper.PlugKeyStroke)) {
           return;
         }
-          for (KeyStroke keyStroke : fromKeys) {
+
+        for (KeyStroke keyStroke : unhandledKeys) {
           handleKey(editor, keyStroke, new EditorDataContext(editor), false);
         }
       }, ModalityState.stateForComponent(editor.getComponent())));
     }
+
     return true;
   }
-    else if (mappingInfo != null) {
+
-      // Okay, there is a mapping for the entered key sequence
+  private boolean handleCompleteMappingSequence(@NotNull Editor editor,
-      //   now the another key sequence should be executed, or the handler that attached to this command
+                                                @NotNull DataContext context,
-      mappingKeys.clear();
+                                                @NotNull CommandState commandState,
+                                                @NotNull MappingState mappingState,
+                                                @NotNull KeyMapping mapping,
+                                                KeyStroke key) {
+
+    // The current sequence isn't a prefix, check to see if it's a completed sequence.
+    final MappingInfo currentMappingInfo = mapping.get(mappingState.getKeys());
+    MappingInfo mappingInfo = currentMappingInfo;
+    if (mappingInfo == null) {
+      // It's an abandoned sequence, check to see if the previous sequence was a complete sequence.
+      // TODO: This is incorrect behaviour
+      // What about sequences that were completed N keys ago?
+      // This should really be handled as part of an abandoned key sequence. We should also consolidate the replay
+      // of cached keys - this happens in timeout, here and also in abandoned sequences.
+      // Extract most of this method into handleMappingInfo. If we have a complete sequence, call it and we're done.
+      // If it's not a complete sequence, handleAbandonedMappingSequence should do something like call
+      // mappingState.detachKeys and look for the longest complete sequence in the returned list, evaluate it, and then
+      // replay any keys not yet handled. NB: The actual implementation should be compared to Vim behaviour to see what
+      // should actually happen.
+      final ArrayList<KeyStroke> previouslyUnhandledKeySequence = new ArrayList<>();
+      mappingState.getKeys().forEach(previouslyUnhandledKeySequence::add);
+      if (previouslyUnhandledKeySequence.size() > 1) {
+        previouslyUnhandledKeySequence.remove(previouslyUnhandledKeySequence.size() - 1);
+        mappingInfo = mapping.get(previouslyUnhandledKeySequence);
+      }
+    }
+
+    if (mappingInfo == null) {
+      return false;
+    }
+
+    mappingState.resetMappingSequence();
+
+    final EditorDataContext currentContext = new EditorDataContext(editor);
 
     final List<KeyStroke> toKeys = mappingInfo.getToKeys();
     final VimExtensionHandler extensionHandler = mappingInfo.getExtensionHandler();
-      final EditorDataContext currentContext = new EditorDataContext(editor);
+
     if (toKeys != null) {
-        // Here is a mapping to another key sequence
       final boolean fromIsPrefix = isPrefix(mappingInfo.getFromKeys(), toKeys);
       boolean first = true;
       for (KeyStroke keyStroke : toKeys) {
@@ -412,15 +443,20 @@ public class KeyHandler {
       }
     }
     else if (extensionHandler != null) {
-        // Here is a mapping to some vim handler
       final CommandProcessor processor = CommandProcessor.getInstance();
-        final boolean isPendingMode = CommandState.getInstance(editor).getMappingMode() == MappingMode.OP_PENDING;
+
+      // Cache isOperatorPending in case the extension changes the mode while moving the caret
+      // See CommonExtensionTest
+      // TODO: Is this legal? Should we assert in this case?
+      final boolean shouldCalculateOffsets = commandState.isOperatorPending();
+
       Map<Caret, Integer> startOffsets =
         editor.getCaretModel().getAllCarets().stream().collect(Collectors.toMap(Function.identity(), Caret::getOffset));
 
       if (extensionHandler.isRepeatable()) {
         VimRepeater.Extension.INSTANCE.clean();
       }
+
       processor.executeCommand(editor.getProject(), () -> extensionHandler.execute(editor, context),
         "Vim " + extensionHandler.getClass().getSimpleName(), null);
 
@@ -429,9 +465,8 @@ public class KeyHandler {
         VimRepeater.Extension.INSTANCE.setArgumentCaptured(null);
         VimRepeater.INSTANCE.setRepeatHandler(true);
       }
-        if (isPendingMode &&
+
-            !currentCmd.isEmpty() &&
+      if (shouldCalculateOffsets && !commandState.getCommandBuilder().hasCurrentCommandPartArgument()) {
-            currentCmd.peek().getArgument() == null) {
         Map<Caret, VimSelection> offsets = new HashMap<>();
 
         for (Caret caret : editor.getCaretModel().getAllCarets()) {
@@ -441,7 +476,7 @@ public class KeyHandler {
               .create(UserDataManager.getVimSelectionStart(caret), caret.getOffset(),
                 SelectionType.fromSubMode(CommandStateHelper.getSubMode(editor)), editor);
             offsets.put(caret, vimSelection);
-              commandState.popState();
+            commandState.popModes();
           }
           else if (startOffset != null && startOffset != caret.getOffset()) {
             // Command line motions are always characterwise exclusive
@@ -464,76 +499,85 @@ public class KeyHandler {
         }
 
         if (!offsets.isEmpty()) {
-            currentCmd.peek().setArgument(new Argument(offsets));
+          commandState.getCommandBuilder().completeCommandPart(new Argument(offsets));
-            state = State.READY;
         }
       }
     }
 
-      // NB: mappingInfo MUST be non-null here, so if equal
+    // If we've just evaluated the previous key sequence, make sure to also handle the current key
-      //  then prevMappingInfo is also non-null; this also
+    if (mappingInfo != currentMappingInfo) {
-      //  means that the prev mapping was a prefix, but the
+      handleKey(editor, key, currentContext, true);
-      //  next key typed (`key`) was not part of that
-      if (prevMappingInfo == mappingInfo) {
-        handleKey(editor, key, currentContext);
     }
+
     return true;
   }
-    else {
+
-      // If the user enters a command that starts with known mapping, but it is not exactly this mapping,
+  private boolean handleAbandonedMappingSequence(@NotNull Editor editor,
-      //   mapping handler prevents further processing of there keys.
+                                                 @NotNull MappingState mappingState,
-      // E.g. if there is a mapping for "hello" and user enters command "help"
+                                                 DataContext context) {
-      //   the processing of "h", "e" and "l" will be prevented by this handler.
+
-      //   However, these keys should be processed as usual when user enters "p"
+    // The user has terminated a mapping sequence with an unexpected key
-      //   and the following for loop does exactly that.
+    // E.g. if there is a mapping for "hello" and user enters command "help" the processing of "h", "e" and "l" will be
-      //
+    //   prevented by this handler. Make sure the currently unhandled keys are processed as normal.
+
+    final List<KeyStroke> unhandledKeyStrokes = mappingState.detachKeys();
+
+    // If there is only the current key to handle, do nothing
+    if (unhandledKeyStrokes.size() == 1) {
+      return false;
+    }
+
     // Okay, look at the code below. Why is the first key handled separately?
     // Let's assume the next mappings:
     //   - map ds j
     //   - map I 2l
     // If user enters `dI`, the first `d` will be caught be this handler because it's a prefix for `ds` command.
-      //  After the user enters `I`, the caught `d` should be processed without mapping and the rest of keys
+    //  After the user enters `I`, the caught `d` should be processed without mapping, and the rest of keys
     //  should be processed with mappings (to make I work)
     //
-      // Additionally, the <Plug>mappings are not executed if the are failed to map to somethings.
+    // Additionally, the <Plug>mappings are not executed if the fail to map to something.
     //   E.g.
     //   - map <Plug>iA someAction
     //   - map I <Plug>i
     //   For `IA` someAction should be executed.
     //   But if the user types `Ib`, `<Plug>i` won't be executed again. Only `b` will be passed to keyHandler.
-      if (mappingKeys.isEmpty()) return false;
 
-      // Well, this will always be false, but just for protection
+    if (unhandledKeyStrokes.get(0).equals(StringHelper.PlugKeyStroke)) {
-      if (fromKeys.isEmpty()) return false;
+      handleKey(editor, unhandledKeyStrokes.get(unhandledKeyStrokes.size() - 1), context, true);
-      final List<KeyStroke> unhandledKeys = new ArrayList<>(fromKeys);
-      mappingKeys.clear();
-
-      if (unhandledKeys.get(0).equals(parseKeys("<Plug>").get(0))) {
-        handleKey(editor, unhandledKeys.get(unhandledKeys.size() - 1), context);
     } else {
-        handleKey(editor, unhandledKeys.get(0), context, false);
+      handleKey(editor, unhandledKeyStrokes.get(0), context, false);
-        for (KeyStroke keyStroke : unhandledKeys.subList(1, unhandledKeys.size())) {
+
+      for (KeyStroke keyStroke : unhandledKeyStrokes.subList(1, unhandledKeyStrokes.size())) {
         handleKey(editor, keyStroke, context, true);
       }
     }
+
     return true;
   }
+
+  private boolean isCommandCountKey(char chKey, @NotNull CommandState editorState) {
+    // Make sure to avoid handling '0' as the start of a count.
+    final CommandBuilder commandBuilder = editorState.getCommandBuilder();
+    return (editorState.getMode() == CommandState.Mode.COMMAND || editorState.getMode() == CommandState.Mode.VISUAL)
+      && commandBuilder.isExpectingCount() && Character.isDigit(chKey) && (commandBuilder.getCount() > 0 || chKey != '0');
   }
 
-  private boolean isDeleteCommandCount(@NotNull KeyStroke key, @NotNull CommandState editorState) {
+  private boolean isDeleteCommandCountKey(@NotNull KeyStroke key, @NotNull CommandState editorState) {
-    return (editorState.getMode() == CommandState.Mode.COMMAND || editorState.getMode() == CommandState.Mode.VISUAL) &&
+    // See `:help N<Del>`
-           state == State.NEW_COMMAND &&
+    final CommandBuilder commandBuilder = editorState.getCommandBuilder();
-           currentArg != Argument.Type.CHARACTER &&
+    return (editorState.getMode() == CommandState.Mode.COMMAND || editorState.getMode() == CommandState.Mode.VISUAL)
-           currentArg != Argument.Type.DIGRAPH &&
+      && commandBuilder.isExpectingCount() && commandBuilder.getCount() > 0 && key.getKeyCode() == KeyEvent.VK_DELETE;
-           key.getKeyCode() == KeyEvent.VK_DELETE &&
-           count != 0;
   }
 
   private boolean isEditorReset(@NotNull KeyStroke key, @NotNull CommandState editorState) {
     return (editorState.getMode() == CommandState.Mode.COMMAND) && StringHelper.isCloseKeyStroke(key);
   }
 
-  private void handleCharArgument(@NotNull KeyStroke key, char chKey) {
+  private boolean isExpectingCharArgument(@NotNull CommandBuilder commandBuilder) {
+    return commandBuilder.getExpectedArgumentType() == Argument.Type.CHARACTER;
+  }
+
+  private void handleCharArgument(@NotNull KeyStroke key, char chKey, @NotNull CommandState commandState) {
     // We are expecting a character argument - is this a regular character the user typed?
     // Some special keys can be handled as character arguments - let's check for them here.
     if (chKey == 0) {
@@ -547,57 +591,64 @@ public class KeyHandler {
       }
     }
 
+    final CommandBuilder commandBuilder = commandState.getCommandBuilder();
     if (chKey != 0) {
-      // Create the character argument, add it to the current command, and signal we are ready to process
+      // Create the character argument, add it to the current command, and signal we are ready to process the command
-      // the command
+      commandBuilder.completeCommandPart(new Argument(chKey));
-      Argument arg = new Argument(chKey);
-      Command cmd = currentCmd.peek();
-      cmd.setArgument(arg);
-      state = State.READY;
     }
     else {
       // Oops - this isn't a valid character argument
-      state = State.BAD_COMMAND;
+      commandBuilder.setCommandState(CurrentCommandState.BAD_COMMAND);
     }
   }
 
-  private boolean isCommandCount(@NotNull CommandState editorState, char chKey) {
-    return (editorState.getMode() == CommandState.Mode.COMMAND || editorState.getMode() == CommandState.Mode.VISUAL) &&
-           state == State.NEW_COMMAND &&
-           currentArg != Argument.Type.CHARACTER &&
-           currentArg != Argument.Type.DIGRAPH &&
-           Character.isDigit(chKey) &&
-           (count != 0 || chKey != '0');
-  }
-
   private boolean handleDigraph(@NotNull Editor editor,
                                 @NotNull KeyStroke key,
                                 @NotNull DataContext context,
-                                @Nullable Node node) {
+                                @NotNull CommandState editorState) {
-    if (digraph == null && !(node instanceof CommandNode) && DigraphSequence.isDigraphStart(key)) {
+
-      digraph = new DigraphSequence();
+    // Support starting a digraph/literal sequence if the operator accepts one as an argument, e.g. 'r' or 'f'.
+    // Normally, we start the sequence (in Insert or CmdLine mode) through a VimAction that can be mapped. Our
+    // VimActions don't work as arguments for operators, so we have to special case here. Helpfully, Vim appears to
+    // hardcode the shortcuts, and doesn't support mapping, so everything works nicely.
+    final CommandBuilder commandBuilder = editorState.getCommandBuilder();
+    if (commandBuilder.getExpectedArgumentType() == Argument.Type.DIGRAPH) {
+      if (DigraphSequence.isDigraphStart(key)) {
+        editorState.startDigraphSequence();
+        return true;
       }
-    if (digraph != null) {
+      if (DigraphSequence.isLiteralStart(key)) {
-      DigraphSequence.DigraphResult res = digraph.processKey(key, editor);
+        editorState.startLiteralSequence();
+        return true;
+      }
+    }
+
+    DigraphResult res = editorState.processDigraphKey(key, editor);
     switch (res.getResult()) {
-        case DigraphSequence.DigraphResult.RES_OK:
+      case DigraphResult.RES_HANDLED:
+      case DigraphResult.RES_BAD:
         return true;
-        case DigraphSequence.DigraphResult.RES_BAD:
+
-          digraph = null;
+      case DigraphResult.RES_DONE:
-          return true;
+        if (commandBuilder.getExpectedArgumentType() == Argument.Type.DIGRAPH) {
-        case DigraphSequence.DigraphResult.RES_DONE:
+          commandBuilder.fallbackToCharacterArgument();
-          if (currentArg == Argument.Type.DIGRAPH) {
-            currentArg = Argument.Type.CHARACTER;
         }
-          digraph = null;
         final KeyStroke stroke = res.getStroke();
         if (stroke == null) {
           return false;
         }
         handleKey(editor, stroke, context);
         return true;
+
+      case DigraphResult.RES_UNHANDLED:
+        if (commandBuilder.getExpectedArgumentType() == Argument.Type.DIGRAPH) {
+          commandBuilder.fallbackToCharacterArgument();
+          handleKey(editor, key, context);
+          return true;
         }
+        return false;
     }
+
     return false;
   }
 
@@ -605,58 +656,28 @@ public class KeyHandler {
                               @NotNull KeyStroke key,
                               @NotNull DataContext context,
                               @NotNull CommandState editorState) {
-    // Let's go through the command stack and merge it all into one command. At this time there should never
+    final Command command = editorState.getCommandBuilder().buildCommand();
-    // be more than two commands on the stack - one is the actual command and the other would be a motion
-    // command argument needed by the first command
-    Command cmd = currentCmd.pop();
-    while (currentCmd.size() > 0) {
-      Command top = currentCmd.pop();
-      top.setArgument(new Argument(cmd));
-      cmd = top;
-    }
-
-    // If we have a command and a motion command argument, both could possibly have their own counts. We
-    // need to adjust the counts so the motion gets the product of both counts and the count associated with
-    // the command gets reset. Example 3c2w (change 2 words, three times) becomes c6w (change 6 words)
-    final Argument arg = cmd.getArgument();
-    if (arg != null && arg.getType() == Argument.Type.MOTION) {
-      final Command mot = arg.getMotion();
-      // If no count was entered for either command then nothing changes. If either had a count then
-      // the motion gets the product of both.
-      int cnt = cmd.getRawCount() == 0 && mot.getRawCount() == 0 ? 0 : cmd.getCount() * mot.getCount();
-      mot.setCount(cnt);
-      cmd.setCount(0);
-    }
 
     // If we were in "operator pending" mode, reset back to normal mode.
-    if (editorState.getMappingMode() == MappingMode.OP_PENDING) {
+    editorState.resetOpPending();
-      editorState.popState();
-    }
 
     // Save off the command we are about to execute
-    editorState.setCommand(cmd);
+    editorState.setExecutingCommand(command);
-
-    if (lastChar != 0 && !lastWasBS) {
-      lastWasBS = key.equals(KeyStroke.getKeyStroke(KeyEvent.VK_BACK_SPACE, 0));
-    }
-    else {
-      lastChar = 0;
-    }
 
     Project project = editor.getProject();
-    final Command.Type type = cmd.getType();
+    final Command.Type type = command.getType();
     if (type.isWrite() && !editor.getDocument().isWritable()) {
       VimPlugin.indicateError();
       reset(editor);
     }
 
-    if (!cmd.getFlags().contains(CommandFlags.FLAG_TYPEAHEAD_SELF_MANAGE)) {
+    if (!command.getFlags().contains(CommandFlags.FLAG_TYPEAHEAD_SELF_MANAGE)) {
       IdeEventQueue.getInstance().flushDelayedKeyEvents();
     }
 
     if (ApplicationManager.getApplication().isDispatchThread()) {
-      Runnable action = new ActionRunner(editor, context, cmd, key);
+      Runnable action = new ActionRunner(editor, context, command, key);
-      EditorActionHandlerBase cmdAction = cmd.getAction();
+      EditorActionHandlerBase cmdAction = command.getAction();
       String name = cmdAction.getId();
 
       if (type.isWrite()) {
@@ -676,40 +697,50 @@ public class KeyHandler {
                                  KeyStroke key,
                                  @NotNull CommandNode node,
                                  CommandState editorState) {
-    // The user entered a valid command. Create the command and add it to the stack
+    // The user entered a valid command. Create the command and add it to the stack.
-    final EditorActionHandlerBase myAction = node.getActionHolder().getAction();
+    final EditorActionHandlerBase action = node.getActionHolder().getAction();
-    Command cmd = new Command(count, myAction, myAction.getType(), myAction.getFlags(), keys);
+    final CommandBuilder commandBuilder = editorState.getCommandBuilder();
-    currentCmd.push(cmd);
+    final Argument.Type expectedArgumentType = commandBuilder.getExpectedArgumentType();
 
-    if (currentArg != null && !checkArgumentCompatibility(node)) return;
+    commandBuilder.pushCommandPart(action);
 
-    if (myAction.getArgumentType() == null || stopMacroRecord(node, editorState)) {
+    if (!checkArgumentCompatibility(expectedArgumentType, action)) {
-      state = State.READY;
+      commandBuilder.setCommandState(CurrentCommandState.BAD_COMMAND);
+      return;
+    }
+
+    if (action.getArgumentType() == null || stopMacroRecord(node, editorState)) {
+      commandBuilder.setCommandState(CurrentCommandState.READY);
     }
     else {
-      currentArg = myAction.getArgumentType();
+      final Argument.Type argumentType = action.getArgumentType();
-      startWaitingForArgument(editor, context, key.getKeyChar(), currentArg, editorState, myAction);
+      startWaitingForArgument(editor, context, key.getKeyChar(), argumentType, editorState);
       partialReset(editor);
     }
 
     // TODO In the name of God, get rid of EX_STRING, FLAG_COMPLETE_EX and all the related staff
-    if (currentArg == Argument.Type.EX_STRING && myAction.getFlags().contains(CommandFlags.FLAG_COMPLETE_EX)) {
+    if (expectedArgumentType == Argument.Type.EX_STRING && action.getFlags().contains(CommandFlags.FLAG_COMPLETE_EX)) {
-      EditorActionHandlerBase action;
+      /* The only action that implements FLAG_COMPLETE_EX is ProcessExEntryAction.
-      if (forwardSearch) {
+         * When pressing ':', ExEntryAction is chosen as the command. Since it expects no arguments, it is invoked and
-        action = new SearchEntryFwdAction();
+           calls ProcessGroup#startExCommand, pushes CMD_LINE mode, and the action is popped. The ex handler will push
-      }
+           the final <CR> through handleKey, which chooses ProcessExEntryAction. Because we're not expecting EX_STRING,
-      else {
+           this branch does NOT fire, and ProcessExEntryAction handles the ex cmd line entry.
-        action = new SearchEntryRevAction();
+         * When pressing '/' or '?', SearchEntry(Fwd|Rev)Action is chosen as the command. This expects an argument of
-      }
+           EX_STRING, so startWaitingForArgument calls ProcessGroup#startSearchCommand. The ex handler pushes the final
+           <CR> through handleKey, which chooses ProcessExEntryAction, and we hit this branch. We don't invoke
+           ProcessExEntryAction, but pop it, set the search text as an argument on SearchEntry(Fwd|Rev)Action and invoke
+           that instead.
+         * When using '/' or '?' as part of a motion (e.g. "d/foo"), the above happens again, and all is good. Because
+           the text has been applied as an argument on the last command, '.' will correctly repeat it.
 
+         It's hard to see how to improve this. Removing EX_STRING means starting ex input has to happen in ExEntryAction
+         and SearchEntry(Fwd|Rev)Action, and the ex command invoked in ProcessExEntryAction, but that breaks any initial
+         operator, which would be invoked first (e.g. 'd' in "d/foo").
+      */
       String text = VimPlugin.getProcess().endSearchCommand(editor);
-      currentCmd.pop();
+      commandBuilder.popCommandPart();  // Pop ProcessExEntryAction
-
+      commandBuilder.completeCommandPart(new Argument(text)); // Set search text on SearchEntry(Fwd|Rev)Action
-      Argument arg = new Argument(text);
+      editorState.popModes(); // Pop CMD_LINE
-      cmd = new Command(count, action, action.getType(), action.getFlags(), keys);
-      cmd.setArgument(arg);
-      currentCmd.push(cmd);
-      CommandState.getInstance(editor).popState();
     }
   }
 
@@ -721,38 +752,27 @@ public class KeyHandler {
                                        DataContext context,
                                        char key,
                                        @NotNull Argument.Type argument,
-                                       CommandState editorState,
+                                       CommandState editorState) {
-                                       EditorActionHandlerBase action) {
+    final CommandBuilder commandBuilder = editorState.getCommandBuilder();
     switch (argument) {
-      case CHARACTER:
-      case DIGRAPH:
-        digraph = new DigraphSequence();
-        state = State.CHAR_OR_DIGRAPH;
-        break;
       case MOTION:
-        if (CommandState.getInstance(editor).isDotRepeatInProgress() && VimRepeater.Extension.INSTANCE.getArgumentCaptured() != null) {
+        if (editorState.isDotRepeatInProgress() && VimRepeater.Extension.INSTANCE.getArgumentCaptured() != null) {
-          currentCmd.peek().setArgument(VimRepeater.Extension.INSTANCE.getArgumentCaptured());
+          commandBuilder.completeCommandPart(VimRepeater.Extension.INSTANCE.getArgumentCaptured());
-          state = State.READY;
         }
-        editorState.pushState(editorState.getMode(), editorState.getSubMode(), MappingMode.OP_PENDING);
+        editorState.pushModes(editorState.getMode(), CommandState.SubMode.OP_PENDING);
         break;
       case EX_STRING:
-        forwardSearch = !(action instanceof SearchEntryRevAction);
+        // The current Command expects an EX_STRING argument. E.g. SearchEntry(Fwd|Rev)Action. This won't execute until
-
+        // state hits READY. Start the ex input field, push CMD_LINE mode and wait for the argument.
-        VimPlugin.getProcess().startSearchCommand(editor, context, count, key);
+        VimPlugin.getProcess().startSearchCommand(editor, context, commandBuilder.getCount(), key);
-        state = State.NEW_COMMAND;
+        commandBuilder.setCommandState(CurrentCommandState.NEW_COMMAND);
-        editorState.pushState(CommandState.Mode.CMD_LINE, CommandState.SubMode.NONE, MappingMode.CMD_LINE);
+        editorState.pushModes(CommandState.Mode.CMD_LINE, CommandState.SubMode.NONE);
-        currentCmd.pop();
+        break;
     }
   }
 
-  private boolean checkArgumentCompatibility(@NotNull CommandNode node) {
+  private boolean checkArgumentCompatibility(@Nullable Argument.Type expectedArgumentType, @NotNull EditorActionHandlerBase action) {
-    if (currentArg == Argument.Type.MOTION &&
+    return !(expectedArgumentType == Argument.Type.MOTION && action.getType() != Command.Type.MOTION);
-        node.getActionHolder().getAction().getType() != Command.Type.MOTION) {
-      state = State.BAD_COMMAND;
-      return false;
-    }
-    return true;
   }
 
   /**
@@ -774,25 +794,25 @@ public class KeyHandler {
    * @param editor The editor to reset.
    */
   public void partialReset(@Nullable Editor editor) {
-    count = 0;
-    keys = new ArrayList<>();
     CommandState editorState = CommandState.getInstance(editor);
-    editorState.stopMappingTimer();
+    editorState.getMappingState().resetMappingSequence();
-    editorState.getMappingKeys().clear();
+    editorState.getCommandBuilder().resetInProgressCommandPart(getKeyRoot(editorState.getMappingState().getMappingMode()));
-    editorState.setCurrentNode(VimPlugin.getKey().getKeyRoot(editorState.getMappingMode()));
   }
 
   /**
-   * Resets the state of this handler. Does a partial reset then resets the mode, the command, and the argument
+   * Resets the state of this handler. Does a partial reset then resets the mode, the command, and the argument.
    *
    * @param editor The editor to reset.
    */
   public void reset(@Nullable Editor editor) {
     partialReset(editor);
-    state = State.NEW_COMMAND;
+    CommandState editorState = CommandState.getInstance(editor);
-    currentCmd.clear();
+    editorState.getCommandBuilder().resetAll(getKeyRoot(editorState.getMappingState().getMappingMode()));
-    currentArg = null;
+  }
-    digraph = null;
+
+  @NotNull
+  private CommandPartNode getKeyRoot(MappingMode mappingMode) {
+    return VimPlugin.getKey().getKeyRoot(mappingMode);
   }
 
   /**
@@ -805,8 +825,6 @@ public class KeyHandler {
     VimPlugin.clearError();
     CommandState.getInstance(editor).reset();
     reset(editor);
-    lastChar = 0;
-    lastWasBS = false;
     VimPlugin.getRegister().resetRegister();
     if (editor != null) {
       VisualGroupKt.updateCaretState(editor);
@@ -836,10 +854,12 @@ public class KeyHandler {
 
   // This class is copied from com.intellij.openapi.editor.actionSystem.DialogAwareDataContext.DialogAwareDataContext
   private final static class DialogAwareDataContext implements DataContext {
+    @SuppressWarnings("rawtypes")
     private static final DataKey[] keys = {PROJECT, PROJECT_FILE_DIRECTORY, EDITOR, VIRTUAL_FILE, PSI_FILE};
     private final Map<String, Object> values = new HashMap<>();
 
     DialogAwareDataContext(DataContext context) {
+      //noinspection rawtypes
       for (DataKey key : keys) {
         values.put(key.getName(), key.getData(context));
       }
@@ -874,17 +894,17 @@ public class KeyHandler {
     @Override
     public void run() {
       CommandState editorState = CommandState.getInstance(editor);
-      boolean wasRecording = editorState.isRecording();
 
-      KeyHandler.getInstance().state = State.NEW_COMMAND;
+      editorState.getCommandBuilder().setCommandState(CurrentCommandState.NEW_COMMAND);
+
       executeVimAction(editor, cmd.getAction(), context);
       if (editorState.getMode() == CommandState.Mode.INSERT || editorState.getMode() == CommandState.Mode.REPLACE) {
         VimPlugin.getChange().processCommand(editor, cmd);
       }
 
-      // Now that the command has been executed let's clean up a few things.
+      // Now the command has been executed let's clean up a few things.
 
-      // By default the "empty" register is used by all commands so we want to reset whatever the last register
+      // By default, the "empty" register is used by all commands, so we want to reset whatever the last register
       // selected by the user was to the empty register - unless we just executed the "select register" command.
       if (cmd.getType() != Command.Type.SELECT_REGISTER) {
         VimPlugin.getRegister().resetRegister();
@@ -896,14 +916,10 @@ public class KeyHandler {
       // "select register"
       if (editorState.getSubMode() == CommandState.SubMode.SINGLE_COMMAND &&
           (!cmd.getFlags().contains(CommandFlags.FLAG_EXPECT_MORE))) {
-        editorState.popState();
+        editorState.popModes();
       }
 
       KeyHandler.getInstance().reset(editor);
-
-      if (wasRecording && editorState.isRecording()) {
-        VimPlugin.getRegister().recordKeyStroke(key);
-      }
     }
 
     private final Editor editor;
@@ -912,27 +928,8 @@ public class KeyHandler {
     private final KeyStroke key;
   }
 
-  private enum State {
-    /** Awaiting a new command */
-    NEW_COMMAND,
-    // TODO  This should be probably processed in some better way
-    /** Awaiting for char or digraph input. In this mode mappings doesn't work (even for <C-K>) */
-    CHAR_OR_DIGRAPH,
-    READY,
-    BAD_COMMAND
-  }
-
-  private int count;
-  private List<KeyStroke> keys = new ArrayList<>();
-  private State state = State.NEW_COMMAND;
-  @NotNull private final Stack<Command> currentCmd = new Stack<>();
-  @Nullable private Argument.Type currentArg;
   private TypedActionHandler origHandler;
-  @Nullable private DigraphSequence digraph = null;
+  private int handleKeyRecursionCount = 0;
-  private char lastChar;
-  private boolean lastWasBS;
-
-  private boolean forwardSearch = true;
 
   private static KeyHandler instance;
 }

src/com/maddyhome/idea/vim/RegisterActions.java

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -17,11 +17,12 @@
  */
 package com.maddyhome.idea.vim;
 
+import com.intellij.openapi.extensions.ExtensionPointListener;
 import com.intellij.openapi.extensions.ExtensionPointName;
+import com.intellij.openapi.extensions.PluginDescriptor;
 import com.maddyhome.idea.vim.group.KeyGroup;
 import com.maddyhome.idea.vim.handler.ActionBeanClass;
 import com.maddyhome.idea.vim.handler.EditorActionHandlerBase;
-import com.maddyhome.idea.vim.key.Shortcut;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
@@ -32,17 +33,41 @@ public class RegisterActions {
 
   public static final ExtensionPointName<ActionBeanClass> VIM_ACTIONS_EP =
     ExtensionPointName.create("IdeaVIM.vimAction");
-  private static boolean actionsRegistered = false;
+  private static boolean initialRegistration = false;
+
+  static {
+    // IdeaVim doesn't support contribution to VIM_ACTIONS_EP extension point, so technically we can skip this update,
+    //   but let's support dynamic plugins in a more classic way and reload actions on every EP change.
+    // TODO: [VERSION UPDATE] since 191 use
+    //  ExtensionPoint.addExtensionPointListener(ExtensionPointListener<T>, boolean, Disposable)
+    // TODO: [VERSION UPDATE] since 201 use
+    //  ExtensionPoint.addExtensionPointListener(ExtensionPointChangeListener, boolean, Disposable)
+    VIM_ACTIONS_EP.getPoint(null).addExtensionPointListener(new ExtensionPointListener<ActionBeanClass>() {
+      @Override
+      public void extensionAdded(@NotNull ActionBeanClass extension, @NotNull PluginDescriptor pluginDescriptor) {
+        // Suppress listener before the `VimPlugin.turnOn()` function execution. This logic should be rewritten after
+        //   version update (or earlier).
+        if (!initialRegistration) return;
+        unregisterActions();
+        registerActions();
+      }
+
+      @Override
+      public void extensionRemoved(@NotNull ActionBeanClass extension, @NotNull PluginDescriptor pluginDescriptor) {
+        if (!initialRegistration) return;
+        unregisterActions();
+        registerActions();
+      }
+    });
+  }
 
   /**
    * Register all the key/action mappings for the plugin.
    */
   static void registerActions() {
-    if (actionsRegistered) return;
-    actionsRegistered = true;
-
     registerVimCommandActions();
     registerEmptyShortcuts();
+    initialRegistration = true;
   }
 
   @Nullable
@@ -58,6 +83,10 @@ public class RegisterActions {
     return action;
   }
 
+  public static void unregisterActions() {
+    VimPlugin.getKey().unregisterCommandActions();
+  }
+
   private static void registerVimCommandActions() {
     KeyGroup parser = VimPlugin.getKey();
     VIM_ACTIONS_EP.extensions().forEach(parser::registerCommandAction);
@@ -66,12 +95,8 @@ public class RegisterActions {
   private static void registerEmptyShortcuts() {
     final KeyGroup parser = VimPlugin.getKey();
 
-    // Digraph shortcuts are handled directly by KeyHandler#handleKey, so they don't have an action. But we still need to
+    // The {char1} <BS> {char2} shortcut is handled directly by KeyHandler#handleKey, so doesn't have an action. But we
-    // register the shortcuts or the editor will swallow them. Technically, the shortcuts will be registered as part of
+    // still need to register the shortcut, to make sure the editor doesn't swallow it.
-    // other commands, but it's best to be explicit
+    parser.registerShortcutWithoutAction(KeyStroke.getKeyStroke(KeyEvent.VK_BACK_SPACE, 0));
-    parser.registerShortcutWithoutAction(new Shortcut(KeyStroke.getKeyStroke(KeyEvent.VK_K, KeyEvent.CTRL_MASK)));
-    parser.registerShortcutWithoutAction(new Shortcut(KeyStroke.getKeyStroke(KeyEvent.VK_Q, KeyEvent.CTRL_MASK)));
-    parser.registerShortcutWithoutAction(new Shortcut(KeyStroke.getKeyStroke(KeyEvent.VK_V, KeyEvent.CTRL_MASK)));
-    parser.registerShortcutWithoutAction(new Shortcut(KeyStroke.getKeyStroke(KeyEvent.VK_BACK_SPACE, 0)));
   }
 }

src/com/maddyhome/idea/vim/StatusBar.kt

@@ -1,3 +1,21 @@
+/*
+ * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
+ * Copyright (C) 2003-2020 The IdeaVim authors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.maddyhome.idea.vim
 
 import com.intellij.ide.BrowserUtil

src/com/maddyhome/idea/vim/VimLocalConfig.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -33,6 +33,7 @@ import org.jdom.Element
     Storage("\$APP_CONFIG$$/vim_local_settings.xml", roamingType = RoamingType.DISABLED, deprecated = true),
     Storage("\$APP_CONFIG$/vim_local_settings.xml", roamingType = RoamingType.DISABLED)
   ])
+// TODO: 27.01.2020 [VERSION UPDATE] 2019.3 https://www.jetbrains.org/intellij/sdk/docs/basics/plugin_structure/plugin_services.html#light-services
 class VimLocalConfig : PersistentStateComponent<Element> {
   override fun getState(): Element {
     val element = Element("ideavim-local")

src/com/maddyhome/idea/vim/VimPlugin.java

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -84,6 +84,7 @@ public class VimPlugin implements BaseComponent, PersistentStateComponent<Elemen
   private static long lastBeepTimeMillis;
 
   private boolean error = false;
+  private String message = null;
 
   private int previousStateVersion = 0;
   private String previousKeyMap = "";
@@ -330,6 +331,8 @@ public class VimPlugin implements BaseComponent, PersistentStateComponent<Elemen
   }
 
   public static void setEnabled(final boolean enabled) {
+    if (isEnabled() == enabled) return;
+
     if (!enabled) {
       getInstance().turnOffPlugin();
     }
@@ -347,6 +350,10 @@ public class VimPlugin implements BaseComponent, PersistentStateComponent<Elemen
     return getInstance().error;
   }
 
+  public static String getMessage() {
+    return getInstance().message;
+  }
+
   /**
    * Indicate to the user that an error has occurred. Just beep.
    */
@@ -375,6 +382,9 @@ public class VimPlugin implements BaseComponent, PersistentStateComponent<Elemen
   }
 
   public static void showMessage(@Nullable String msg) {
+    if (ApplicationManager.getApplication().isUnitTestMode()) {
+      getInstance().message = msg;
+    }
     ProjectManager pm = ProjectManager.getInstance();
     Project[] projects = pm.getOpenProjects();
     for (Project project : projects) {
@@ -418,6 +428,12 @@ public class VimPlugin implements BaseComponent, PersistentStateComponent<Elemen
   private void turnOffPlugin() {
     KeyHandler.getInstance().fullReset(null);
 
+    // Unregister vim actions in command mode
+    RegisterActions.unregisterActions();
+
+    // Unregister ex handlers
+    CommandParser.getInstance().unregisterHandlers();
+
     getEditor().turnOff();
     getSearch().turnOff();
     VimListenerManager.INSTANCE.turnOff();

src/com/maddyhome/idea/vim/VimProjectComponent.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/VimState.kt

@@ -1,3 +1,21 @@
+/*
+ * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
+ * Copyright (C) 2003-2020 The IdeaVim authors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.maddyhome.idea.vim
 
 import org.jdom.Element

src/com/maddyhome/idea/vim/VimTypedActionHandler.java

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/ComplicatedKeysAction.kt

@@ -1,3 +1,21 @@
+/*
+ * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
+ * Copyright (C) 2003-2020 The IdeaVim authors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.maddyhome.idea.vim.action
 
 import javax.swing.KeyStroke

src/com/maddyhome/idea/vim/action/DuplicableOperatorAction.kt

@@ -1,3 +1,21 @@
+/*
+ * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
+ * Copyright (C) 2003-2020 The IdeaVim authors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
 package com.maddyhome.idea.vim.action
 
 /**

src/com/maddyhome/idea/vim/action/ExEntryAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/ResetModeAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/VimPluginToggleAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/VimShortcutKeyAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -34,7 +34,6 @@ import com.intellij.openapi.util.Key
 import com.intellij.ui.KeyStrokeAdapter
 import com.maddyhome.idea.vim.KeyHandler
 import com.maddyhome.idea.vim.VimPlugin
-import com.maddyhome.idea.vim.handler.EditorActionHandlerBase.Companion.parseKeysSet
 import com.maddyhome.idea.vim.helper.EditorDataContext
 import com.maddyhome.idea.vim.helper.EditorHelper
 import com.maddyhome.idea.vim.helper.StringHelper
@@ -42,7 +41,7 @@ import com.maddyhome.idea.vim.helper.inInsertMode
 import com.maddyhome.idea.vim.helper.inNormalMode
 import com.maddyhome.idea.vim.key.ShortcutOwner
 import com.maddyhome.idea.vim.listener.IdeaSpecifics.aceJumpActive
-import com.maddyhome.idea.vim.option.OptionsManager.lookupKeys
+import com.maddyhome.idea.vim.option.OptionsManager
 import java.awt.event.InputEvent
 import java.awt.event.KeyEvent
 import javax.swing.KeyStroke
@@ -90,7 +89,7 @@ class VimShortcutKeyAction : AnAction(), DumbAware {
       if (aceJumpActive()) return false
       val keyCode = keyStroke.keyCode
       if (LookupManager.getActiveLookup(editor) != null) {
-        return isEnabledForLookup(keyStroke)
+        return LookupKeys.isEnabledForLookup(keyStroke)
       }
       if (keyCode == KeyEvent.VK_ESCAPE) {
         return isEnabledForEscape(editor)
@@ -136,29 +135,6 @@ class VimShortcutKeyAction : AnAction(), DumbAware {
     return fileEditorManager.allEditors.any { fileEditor -> editor == EditorUtil.getEditorEx(fileEditor) }
   }
 
-  private fun isEnabledForLookup(keyStroke: KeyStroke): Boolean {
-    val notAllowedKeys = parseKeysSet(
-      "<Tab>", "<Down>", "<Up>", "<Enter>", "<Left>", "<Right>",
-      // New line in vim, but QuickDoc on MacOs
-      "<C-J>"
-    )
-    for (keys in notAllowedKeys) {
-      if (keyStroke == keys[0]) {
-        return false
-      }
-    }
-    // We allow users to set custom keys that will work with lookup in case devs forgot something
-    val popupActions = lookupKeys
-    val values = popupActions.values()
-    for (value in values) {
-      val keys = StringHelper.parseKeys(value)
-      if (keys.size >= 1 && keyStroke == keys[0]) {
-        return false
-      }
-    }
-    return true
-  }
-
   private fun isShortcutConflict(keyStroke: KeyStroke): Boolean {
     return VimPlugin.getKey().getKeymapConflicts(keyStroke).isNotEmpty()
   }
@@ -189,6 +165,29 @@ class VimShortcutKeyAction : AnAction(), DumbAware {
 
   private fun getEditor(e: AnActionEvent): Editor? = e.getData(PlatformDataKeys.EDITOR)
 
+  /**
+   * Every time the key pressed with an active lookup, there is a decision:
+   *   should this key be processed by IdeaVim, or by IDE. For example, dot and enter should be processed by IDE, but
+   *   <C-W> by IdeaVim.
+   *
+   * The list of keys that should be processed by IDE is stored in [OptionsManager.lookupKeys]. So, we should search
+   *   if the pressed key is presented in this list. The caches are used to speedup the process.
+   */
+  private object LookupKeys {
+    private var parsedLookupKeys: Set<KeyStroke> = parseLookupKeys()
+
+    init {
+      OptionsManager.lookupKeys.addOptionChangeListener { _, _ ->
+        parsedLookupKeys = parseLookupKeys()
+      }
+    }
+
+    fun isEnabledForLookup(keyStroke: KeyStroke): Boolean = keyStroke !in parsedLookupKeys
+
+    private fun parseLookupKeys() = OptionsManager.lookupKeys.values()
+      .map { StringHelper.parseKeys(it) }.filter { it.isNotEmpty() }.map { it.first() }.toSet()
+  }
+
   companion object {
     @JvmField
     val VIM_ONLY_EDITOR_KEYS: Set<KeyStroke> = ImmutableSet.builder<KeyStroke>().addAll(getKeyStrokes(KeyEvent.VK_ENTER, 0)).addAll(getKeyStrokes(KeyEvent.VK_ESCAPE, 0))

src/com/maddyhome/idea/vim/action/change/OperatorAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/RedoAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/RepeatChangeAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -39,7 +39,7 @@ class RepeatChangeAction : VimActionHandler.SingleExecution() {
     if (lastCommand == null && VimRepeater.Extension.lastExtensionHandler == null) return false
 
     // Save state
-    val save = state.command
+    val save = state.executingCommand
     val lastFTCmd = VimPlugin.getMotion().lastFTCmd
     val lastFTChar = VimPlugin.getMotion().lastFTChar
     val reg = VimPlugin.getRegister().currentRegister
@@ -62,7 +62,7 @@ class RepeatChangeAction : VimActionHandler.SingleExecution() {
             mot.count = 0
           }
         }
-        state.setCommand(lastCommand)
+        state.setExecutingCommand(lastCommand)
 
         KeyHandler.executeVimAction(editor, lastCommand.action, context)
 
@@ -74,7 +74,7 @@ class RepeatChangeAction : VimActionHandler.SingleExecution() {
     state.isDotRepeatInProgress = false
 
     // Restore state
-    if (save != null) state.setCommand(save)
+    if (save != null) state.setExecutingCommand(save)
     VimPlugin.getMotion().setLastFTCmd(lastFTCmd, lastFTChar)
     if (lastHandler != null) VimRepeater.Extension.lastExtensionHandler = lastHandler
     VimRepeater.repeatHandler = repeatHandler

src/com/maddyhome/idea/vim/action/change/UndoAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/change/AutoIndentLinesVisualAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/change/ChangeCaseLowerMotionAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/change/ChangeCaseLowerVisualAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/change/ChangeCaseToggleCharacterAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/change/ChangeCaseToggleMotionAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/change/ChangeCaseToggleVisualAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/change/ChangeCaseUpperMotionAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/change/ChangeCaseUpperVisualAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/change/ChangeCharacterAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/change/ChangeCharactersAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/change/ChangeEndOfLineAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/change/ChangeLastGlobalSearchReplaceAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -22,7 +22,7 @@ import com.intellij.openapi.editor.Editor
 import com.maddyhome.idea.vim.VimPlugin
 import com.maddyhome.idea.vim.command.Argument
 import com.maddyhome.idea.vim.command.Command
-import com.maddyhome.idea.vim.ex.LineRange
+import com.maddyhome.idea.vim.ex.ranges.LineRange
 import com.maddyhome.idea.vim.handler.ChangeEditorActionHandler
 import com.maddyhome.idea.vim.helper.EditorHelper
 

src/com/maddyhome/idea/vim/action/change/change/ChangeLastSearchReplaceAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -22,7 +22,7 @@ import com.intellij.openapi.editor.Editor
 import com.maddyhome.idea.vim.VimPlugin
 import com.maddyhome.idea.vim.command.Argument
 import com.maddyhome.idea.vim.command.Command
-import com.maddyhome.idea.vim.ex.LineRange
+import com.maddyhome.idea.vim.ex.ranges.LineRange
 import com.maddyhome.idea.vim.handler.ChangeEditorActionHandler
 
 class ChangeLastSearchReplaceAction : ChangeEditorActionHandler.SingleExecution() {

src/com/maddyhome/idea/vim/action/change/change/ChangeLineAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/change/ChangeMotionAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/change/ChangeReplaceAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/change/ChangeVisualAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/change/ChangeVisualCharacterAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/change/ChangeVisualLinesAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/change/ChangeVisualLinesEndAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/change/FilterMotionAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/change/FilterVisualLinesAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/change/ReformatCodeMotionAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/change/ReformatCodeVisualAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/change/number/ChangeNumberDecAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/change/number/ChangeNumberIncAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/change/number/ChangeVisualNumberAvalancheDecAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/change/number/ChangeVisualNumberAvalancheIncAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/change/number/ChangeVisualNumberDecAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/change/number/ChangeVisualNumberIncAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/delete/DeleteCharacterAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/delete/DeleteCharacterLeftAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/delete/DeleteCharacterRightAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/delete/DeleteEndOfLineAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/delete/DeleteJoinLinesAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/delete/DeleteJoinLinesSpacesAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/delete/DeleteJoinVisualLinesAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/delete/DeleteJoinVisualLinesSpacesAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/delete/DeleteMotionAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/delete/DeleteVisualAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/delete/DeleteVisualLinesAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/delete/DeleteVisualLinesEndAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/insert/InsertAfterCursorAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/insert/InsertAfterLineEndAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/insert/InsertAtPreviousInsertAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/insert/InsertBeforeCursorAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/insert/InsertBeforeFirstNonBlankAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/insert/InsertCharacterAboveCursorAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/insert/InsertCharacterBelowCursorAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/insert/InsertDeleteInsertedTextAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/insert/InsertDeletePreviousWordAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/insert/InsertEnterAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/insert/InsertExitModeAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/insert/InsertInsertAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/insert/InsertLineStartAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/insert/InsertNewLineAboveAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/insert/InsertNewLineBelowAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/insert/InsertPreviousInsertAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/insert/InsertPreviousInsertExitAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/insert/InsertRegisterAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/insert/InsertSingleCommandAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/insert/StartInsertDigraphAction.kt

@@ -0,0 +1,16 @@
+package com.maddyhome.idea.vim.action.change.insert
+
+import com.intellij.openapi.actionSystem.DataContext
+import com.intellij.openapi.editor.Editor
+import com.maddyhome.idea.vim.KeyHandler
+import com.maddyhome.idea.vim.command.Command
+import com.maddyhome.idea.vim.handler.VimActionHandler
+
+class StartInsertDigraphAction : VimActionHandler.SingleExecution() {
+  override val type: Command.Type = Command.Type.INSERT
+
+  override fun execute(editor: Editor, context: DataContext, cmd: Command): Boolean {
+    KeyHandler.getInstance().startDigraphSequence(editor)
+    return true
+  }
+}

src/com/maddyhome/idea/vim/action/change/insert/StartInsertLiteralAction.kt

@@ -0,0 +1,16 @@
+package com.maddyhome.idea.vim.action.change.insert
+
+import com.intellij.openapi.actionSystem.DataContext
+import com.intellij.openapi.editor.Editor
+import com.maddyhome.idea.vim.KeyHandler
+import com.maddyhome.idea.vim.command.Command
+import com.maddyhome.idea.vim.handler.VimActionHandler
+
+class StartInsertLiteralAction : VimActionHandler.SingleExecution() {
+  override val type: Command.Type = Command.Type.INSERT
+
+  override fun execute(editor: Editor, context: DataContext, cmd: Command): Boolean {
+    KeyHandler.getInstance().startLiteralSequence(editor)
+    return true
+  }
+}

src/com/maddyhome/idea/vim/action/change/insert/VisualBlockAppendAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/insert/VisualBlockInsertAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/shift/AutoIndentMotionAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/shift/ShiftLeft.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/change/shift/ShiftRight.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

src/com/maddyhome/idea/vim/action/copy/PutTextAfterCursorAction.kt

@@ -1,6 +1,6 @@
 /*
  * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
- * Copyright (C) 2003-2019 The IdeaVim authors
+ * Copyright (C) 2003-2020 The IdeaVim authors
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by