Use java boolean

.teamcity/_Self/Constants.kt

@@ -13,7 +13,11 @@ object Constants {
   const val PROPERTY_TESTS = "LATEST-EAP-SNAPSHOT"
   const val LONG_RUNNING_TESTS = "LATEST-EAP-SNAPSHOT"
   const val QODANA_TESTS = "LATEST-EAP-SNAPSHOT"
-  const val RELEASE = "2021.3"
-  const val RELEASE_DEV = "LATEST-EAP-SNAPSHOT"
-  const val RELEASE_EAP = "LATEST-EAP-SNAPSHOT"
+  const val RELEASE = "2022.1.3"
+
+
+  // Use LATEST-EAP-SNAPSHOT only when we'll update the minimum version of IJ to 222+
+  // Because of some API inconcistincies, IdeaVim built on 2022+ won't run on older versions of IJ
+  const val RELEASE_DEV = "2022.1.3"
+  const val RELEASE_EAP = "2022.1.3"
 }

.teamcity/patches/buildTypes/Build.kts

@@ -0,0 +1,56 @@
+package patches.buildTypes
+
+import jetbrains.buildServer.configs.kotlin.v2019_2.*
+import jetbrains.buildServer.configs.kotlin.v2019_2.BuildType
+import jetbrains.buildServer.configs.kotlin.v2019_2.buildFeatures.golang
+import jetbrains.buildServer.configs.kotlin.v2019_2.buildSteps.script
+import jetbrains.buildServer.configs.kotlin.v2019_2.triggers.schedule
+import jetbrains.buildServer.configs.kotlin.v2019_2.ui.*
+
+/*
+This patch script was generated by TeamCity on settings change in UI.
+To apply the patch, create a buildType with id = 'Build'
+in the root project, and delete the patch script.
+*/
+create(DslContext.projectId, BuildType({
+    id("Build")
+    name = "IdeaVim compatibility with external plugins"
+
+    vcs {
+        root(DslContext.settingsRoot)
+    }
+
+    steps {
+        script {
+            name = "Check"
+            scriptContent = """
+                java -jar verifier/verifier-cli-dev-all.jar check-plugin '${'$'}org.jetbrains.IdeaVim-EasyMotion' [latest-IU] -team-city
+                java -jar verifier/verifier-cli-dev-all.jar check-plugin '${'$'}io.github.mishkun.ideavimsneak' [latest-IU] -team-city
+                java -jar verifier/verifier-cli-dev-all.jar check-plugin '${'$'}eu.theblob42.idea.whichkey' [latest-IU] -team-city
+                java -jar verifier/verifier-cli-dev-all.jar check-plugin '${'$'}IdeaVimExtension' [latest-IU] -team-city
+                # Outdated java -jar verifier/verifier-cli-dev-all.jar check-plugin '${'$'}github.zgqq.intellij-enhance' [latest-IU] -team-city
+                java -jar verifier/verifier-cli-dev-all.jar check-plugin '${'$'}com.github.copilot' [latest-IU] -team-city
+                java -jar verifier/verifier-cli-dev-all.jar check-plugin '${'$'}com.github.dankinsoid.multicursor' [latest-IU] -team-city
+                java -jar verifier/verifier-cli-dev-all.jar check-plugin '${'$'}com.joshestein.ideavim-quickscope' [latest-IU] -team-city
+            """.trimIndent()
+        }
+    }
+
+    triggers {
+        schedule {
+            schedulingPolicy = daily {
+                hour = 4
+            }
+            branchFilter = ""
+            triggerBuild = always()
+            withPendingChangesOnly = false
+        }
+    }
+
+    features {
+        golang {
+            testFormat = "json"
+        }
+    }
+}))
+

.teamcity/patches/buildTypes/Qodana.kts

@@ -16,17 +16,12 @@ changeBuildType(RelativeId("Qodana")) {
     expectSteps {
         qodana {
             name = "Qodana"
-            reportAsTests = true
-            inspectionProfile = customProfile {
-                path = ".idea/inspectionProfiles/Qodana.xml"
-            }
             param("clonefinder-enable", "true")
             param("clonefinder-languages", "Java")
             param("clonefinder-languages-container", "Java Kotlin")
             param("clonefinder-mode", "")
             param("clonefinder-queried-project", "src")
             param("clonefinder-reference-projects", "src")
-            param("fail-build-on-errors", "")
             param("licenseaudit-enable", "true")
             param("namesAndTagsCustom", "repo.labs.intellij.net/static-analyser/qodana")
             param("report-version", "")

.teamcity/patches/projects/_Self.kts

@@ -0,0 +1,74 @@
+package patches.projects
+
+import jetbrains.buildServer.configs.kotlin.v2019_2.*
+import jetbrains.buildServer.configs.kotlin.v2019_2.AmazonEC2CloudImage
+import jetbrains.buildServer.configs.kotlin.v2019_2.AmazonEC2CloudProfile
+import jetbrains.buildServer.configs.kotlin.v2019_2.Project
+import jetbrains.buildServer.configs.kotlin.v2019_2.amazonEC2CloudImage
+import jetbrains.buildServer.configs.kotlin.v2019_2.amazonEC2CloudProfile
+import jetbrains.buildServer.configs.kotlin.v2019_2.ui.*
+
+/*
+This patch script was generated by TeamCity on settings change in UI.
+To apply the patch, change the root project
+accordingly, and delete the patch script.
+*/
+changeProject(DslContext.projectId) {
+    features {
+        val feature1 = find<AmazonEC2CloudImage> {
+            amazonEC2CloudImage {
+                id = "PROJECT_EXT_768"
+                profileId = "amazon-48"
+                agentPoolId = "41"
+                name = "BuildAgentsIdeaVim"
+                vpcSubnetId = "subnet-58839511"
+                keyPairName = ""
+                instanceType = "c5d.xlarge"
+                securityGroups = listOf("sg-eda08696", "sg-7332cf0f")
+                useSpotInstances = true
+                instanceTags = mapOf(
+                    "project" to "idea-vim"
+                )
+                source = Source("ami-0d1a6a32faa92923e")
+                param("image-instances-limit", "")
+                param("spot-instance-price", "")
+            }
+        }
+        feature1.apply {
+            profileId = "amazon-48"
+            agentPoolId = "41"
+            name = "BuildAgentsIdeaVim"
+            vpcSubnetId = "subnet-58839511"
+            keyPairName = ""
+            instanceType = "c5d.xlarge"
+            securityGroups = listOf("sg-eda08696", "sg-7332cf0f")
+            useSpotInstances = true
+            instanceTags = mapOf(
+                "project" to "idea-vim"
+            )
+            source = Source("ami-0fa17ce8238eb8868")
+        }
+        val feature2 = find<AmazonEC2CloudProfile> {
+            amazonEC2CloudProfile {
+                id = "amazon-48"
+                name = "Cloud Agents - Single Build"
+                terminateAfterBuild = true
+                terminateIdleMinutes = 15
+                region = AmazonEC2CloudProfile.Regions.EU_WEST_DUBLIN
+                maxInstancesCount = 10
+                authType = accessKey {
+                    keyId = "credentialsJSON:dbcdb2a2-de5f-4bc9-9421-292b19e83947"
+                    secretKey = "credentialsJSON:65a87fe7-0977-4af9-96f1-344f2b82d269"
+                }
+                param("agentPushPreset", "")
+            }
+        }
+        feature2.apply {
+            name = "Cloud Agents - Single Build"
+            terminateAfterBuild = true
+            terminateIdleMinutes = 15
+            region = AmazonEC2CloudProfile.Regions.EU_WEST_DUBLIN
+            maxInstancesCount = 10
+        }
+    }
+}

.teamcity/patches/vcsRoots/HttpsGithubComAlexPl292IdeaVimCompatibilityRefsHeadsMaster.kts

@@ -0,0 +1,25 @@
+package patches.vcsRoots
+
+import jetbrains.buildServer.configs.kotlin.v2019_2.*
+import jetbrains.buildServer.configs.kotlin.v2019_2.ui.*
+import jetbrains.buildServer.configs.kotlin.v2019_2.vcs.GitVcsRoot
+
+/*
+This patch script was generated by TeamCity on settings change in UI.
+To apply the patch, create a vcsRoot with id = 'HttpsGithubComAlexPl292IdeaVimCompatibilityRefsHeadsMaster'
+in the root project, and delete the patch script.
+*/
+create(DslContext.projectId, GitVcsRoot({
+    id("HttpsGithubComAlexPl292IdeaVimCompatibilityRefsHeadsMaster")
+    name = "https://github.com/AlexPl292/IdeaVimCompatibility#refs/heads/master"
+    url = "https://github.com/AlexPl292/IdeaVimCompatibility"
+    branch = "refs/heads/master"
+    branchSpec = "refs/heads/*"
+    authMethod = password {
+        userName = "AlexPl292"
+        password = "credentialsJSON:43afd6e5-6ad5-4d12-a218-cf1547717a7f"
+    }
+    param("oauthProviderId", "PROJECT_EXT_1")
+    param("useAlternates", "true")
+}))
+

.teamcity/patches/vcsRoots/IdeaVimCompatibility.kts

@@ -0,0 +1,23 @@
+package patches.vcsRoots
+
+import jetbrains.buildServer.configs.kotlin.v2019_2.*
+import jetbrains.buildServer.configs.kotlin.v2019_2.ui.*
+import jetbrains.buildServer.configs.kotlin.v2019_2.vcs.GitVcsRoot
+
+/*
+This patch script was generated by TeamCity on settings change in UI.
+To apply the patch, create a vcsRoot with id = 'IdeaVimCompatibility'
+in the root project, and delete the patch script.
+*/
+create(DslContext.projectId, GitVcsRoot({
+    id("IdeaVimCompatibility")
+    name = "IdeaVimCompatibility"
+    url = "git@github.com:AlexPl292/IdeaVimCompatibility.git"
+    branch = "refs/heads/master"
+    authMethod = uploadedKey {
+        userName = "git"
+        uploadedKey = "Alex Plate TeamCity key"
+    }
+    param("useAlternates", "true")
+}))
+

CHANGES.md

@@ -55,6 +55,8 @@ usual beta standards.
 * [VIM-696](https://youtrack.jetbrains.com/issue/VIM-696/vim-selection-issue-after-undo) Fix selection after undo
 * [VIM-744](https://youtrack.jetbrains.com/issue/VIM-744/Use-undoredo-with-count-modifier) Add count to undo/redo
 * [VIM-1862](https://youtrack.jetbrains.com/issue/VIM-1862/Ex-commands-executed-in-keymaps-and-macros-are-added-to-the-command-history) Fix command history
+* [VIM-2227](https://youtrack.jetbrains.com/issue/VIM-2227) Wrong behavior when deleting / changing surround with invalid character
+* [VIM-2691](https://youtrack.jetbrains.com/issue/VIM-2691) Save file on :w
 
 ### Merged PRs:
 * [468](https://github.com/JetBrains/ideavim/pull/468) by [Thomas Schouten](https://github.com/PHPirates): Implement UserDataHolder for EditorDataContext
@@ -63,6 +65,7 @@ usual beta standards.
 * [493](https://github.com/JetBrains/ideavim/pull/493) by [Matt Ellis](https://github.com/citizenmatt): Improvements to Commentary extension
 * [494](https://github.com/JetBrains/ideavim/pull/494) by [Matt Ellis](https://github.com/citizenmatt): Cleanup pre-212 CaretVisualAttributes compatibility code
 * [504](https://github.com/JetBrains/ideavim/pull/504) by [Matt Ellis](https://github.com/citizenmatt): Minor bug fixes
+* [519](https://github.com/JetBrains/ideavim/pull/519) by [chylex](https://github.com/chylex): Fix(VIM-2227): Wrong behavior when deleting / changing surround with invalid character
 
 ## 1.10.0, 2022-02-17
 

build.gradle.kts

@@ -24,7 +24,7 @@ plugins {
     java
     kotlin("jvm") version "1.6.21"
 
-    id("org.jetbrains.intellij") version "1.6.0"
+    id("org.jetbrains.intellij") version "1.7.0-SNAPSHOT"
     id("org.jetbrains.changelog") version "1.3.1"
 
     // ktlint linter - read more: https://github.com/JLLeitschuh/ktlint-gradle
@@ -70,7 +70,7 @@ dependencies {
     runtimeOnly("org.antlr:antlr4-runtime:$antlrVersion")
     antlr("org.antlr:antlr4:$antlrVersion")
 
-    implementation(project(":vim-engine"))
+    api(project(":vim-engine"))
 }
 
 configurations {
@@ -145,6 +145,7 @@ tasks {
         kotlinOptions {
             jvmTarget = javaVersion
             apiVersion = "1.5"
+            freeCompilerArgs = listOf("-Xjvm-default=all-compatibility")
 //            allWarningsAsErrors = true
         }
     }
@@ -211,6 +212,25 @@ tasks {
     named("compileKotlin") {
         dependsOn("generateGrammarSource")
     }
+
+    // Add plugin open API sources to the plugin ZIP
+    val createOpenApiSourceJar by registering(Jar::class) {
+        // Java sources
+        from(sourceSets.main.get().java) {
+            include("**/com/maddyhome/idea/vim/**/*.java")
+        }
+        // Kotlin sources
+        from(kotlin.sourceSets.main.get().kotlin) {
+            include("**/com/maddyhome/idea/vim/**/*.kt")
+        }
+        destinationDirectory.set(layout.buildDirectory.dir("libs"))
+        archiveClassifier.set("src")
+    }
+
+    buildPlugin {
+        dependsOn(createOpenApiSourceJar)
+        from(createOpenApiSourceJar) { into("lib/src") }
+    }
 }
 
 // --- Linting

qodana.yaml

@@ -1,6 +1,8 @@
 version: 1.0
 profile:
   name: Qodana
+include:
+  - name: CheckDependencyLicenses
 exclude:
   - name: MoveVariableDeclarationIntoWhen
   - name: PluginXmlValidity
@@ -9,12 +11,15 @@ exclude:
   - name: UnusedReturnValue
   - name: All
     paths:
-      - build.gradle
+      - build.gradle.kts
       - gradle/wrapper/gradle-wrapper.properties
-      - resources/icons/youtrack.svg
-      - src/com/maddyhome/idea/vim/ex/vimscript/VimScriptCommandHandler.java
-      - src/com/maddyhome/idea/vim/helper/SearchHelper.java
-      - src/com/maddyhome/idea/vim/regexp/RegExp.java
-      - test/org/jetbrains/plugins/ideavim/propertybased/samples/JavaText.kt
-      - test/org/jetbrains/plugins/ideavim/propertybased/samples/LoremText.kt
-      - test/org/jetbrains/plugins/ideavim/propertybased/samples/SimpleText.kt
+      - src/main/resources/icons/youtrack.svg
+      - src/main/java/com/maddyhome/idea/vim/helper/SearchHelper.java
+      - src/main/java/com/maddyhome/idea/vim/regexp/RegExp.kt
+      - src/test/java/org/jetbrains/plugins/ideavim/propertybased/samples/JavaText.kt
+      - src/test/java/org/jetbrains/plugins/ideavim/propertybased/samples/LoremText.kt
+      - src/test/java/org/jetbrains/plugins/ideavim/propertybased/samples/SimpleText.kt
+      - src/main/java/com/maddyhome/idea/vim/vimscript/parser/generated/VimscriptListener.java
+      - src/main/java/com/maddyhome/idea/vim/vimscript/parser/generated/VimscriptLexer.java
+      - src/main/java/com/maddyhome/idea/vim/vimscript/parser/generated/VimscriptParser.java
+      - src/main/java/com/maddyhome/idea/vim/vimscript/parser/generated/VimscriptVisitor.java

settings.gradle

@@ -1,3 +1,13 @@
+// Set repository for snapshot versions of gradle plugin
+pluginManagement {
+  repositories {
+    maven {
+      url 'https://oss.sonatype.org/content/repositories/snapshots/'
+    }
+    gradlePluginPortal()
+  }
+}
+
 rootProject.name = 'IdeaVIM'
 include 'vim-engine'
 

src/main/antlr/Vimscript.g4

@@ -146,7 +146,7 @@ rShift: GREATER+;
 
 letCommands:
     (WS | COLON)* range? (WS | COLON)* LET WS+ expr WS*
-        assignmentOperator =  (ASSIGN | PLUS_ASSIGN | MINUS_ASSIGN | STAR_ASSIGN | DIV_ASSIGN | MOD_ASSIGN | DOT_ASSIGN)
+        assignmentOperator
         WS* expr WS* ((inline_comment NEW_LINE) | (NEW_LINE | BAR)+)
     #Let1Command|
 
@@ -154,6 +154,21 @@ letCommands:
     #Let2Command
 ;
 
+assignmentOperator:
+    ASSIGN | plusAssign | minusAssign | startAssign | divAssign | modAssign | dotAssign;
+plusAssign:
+    PLUS ASSIGN;
+minusAssign:
+    MINUS ASSIGN;
+startAssign:
+    STAR ASSIGN;
+divAssign:
+    DIV ASSIGN;
+modAssign:
+    MOD ASSIGN;
+dotAssign:
+    DOT ASSIGN;
+
 shortRange:
     ((QUESTION (~QUESTION)* QUESTION?) | (DIV (~DIV)* DIV?));
 range:
@@ -778,12 +793,12 @@ IS_NOT_CS:              'isnot#';
 
 // Assignment operators
 ASSIGN:                 '=';
-PLUS_ASSIGN:            '+=';
-MINUS_ASSIGN:           '-=';
-STAR_ASSIGN:            '*=';
-DIV_ASSIGN:             '/=';
-MOD_ASSIGN:             '%=';
-DOT_ASSIGN:             '.=';
+//PLUS_ASSIGN:            '+=';
+//MINUS_ASSIGN:           '-=';
+//STAR_ASSIGN:            '*=';
+//DIV_ASSIGN:             '/=';
+//MOD_ASSIGN:             '%=';
+//DOT_ASSIGN:             '.=';
 
 // Escaped chars
 ESCAPED_QUESTION:       '\\?';

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

@@ -48,13 +48,13 @@ import com.maddyhome.idea.vim.group.visual.VisualMotionGroup;
 import com.maddyhome.idea.vim.helper.MacKeyRepeat;
 import com.maddyhome.idea.vim.listener.VimListenerManager;
 import com.maddyhome.idea.vim.newapi.IjVimInjector;
-import com.maddyhome.idea.vim.options.OptionService;
 import com.maddyhome.idea.vim.ui.StatusBarIconFactory;
 import com.maddyhome.idea.vim.ui.VimEmulationConfigurable;
 import com.maddyhome.idea.vim.ui.ex.ExEntryPanel;
 import com.maddyhome.idea.vim.vimscript.services.FunctionStorage;
 import com.maddyhome.idea.vim.vimscript.services.IjVimOptionService;
-import com.maddyhome.idea.vim.vimscript.services.VimVariableService;
+import com.maddyhome.idea.vim.vimscript.services.OptionService;
+import com.maddyhome.idea.vim.vimscript.services.VariableService;
 import org.jdom.Element;
 import org.jetbrains.annotations.Nls;
 import org.jetbrains.annotations.NotNull;
@@ -226,8 +226,8 @@ public class VimPlugin implements PersistentStateComponent<Element>, Disposable
     return (PutGroup)VimInjectorKt.getInjector().getPut();
   }
 
-  public static @NotNull VimVariableService getVariableService() {
-    return ApplicationManager.getApplication().getService(VimVariableService.class);
+  public static @NotNull VariableService getVariableService() {
+    return ApplicationManager.getApplication().getService(VariableService.class);
   }
 
   public static @NotNull OptionService getOptionService() {

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

@@ -34,8 +34,8 @@ import com.maddyhome.idea.vim.group.visual.VimSelection
 import com.maddyhome.idea.vim.handler.VimActionHandler
 import com.maddyhome.idea.vim.handler.VisualOperatorActionHandler
 import com.maddyhome.idea.vim.helper.MessageHelper
-import com.maddyhome.idea.vim.helper.commandState
 import com.maddyhome.idea.vim.helper.enumSetOf
+import com.maddyhome.idea.vim.helper.vimStateMachine
 import com.maddyhome.idea.vim.newapi.ij
 import java.util.*
 
@@ -61,7 +61,7 @@ class OperatorAction : VimActionHandler.SingleExecution() {
 
   override fun execute(editor: VimEditor, context: ExecutionContext, cmd: Command, operatorArguments: OperatorArguments): Boolean {
     val argument = cmd.argument ?: return false
-    if (!editor.commandState.isDotRepeatInProgress) {
+    if (!editor.vimStateMachine.isDotRepeatInProgress) {
       argumentCaptured = argument
     }
     val range = getMotionRange(editor, context, argument, operatorArguments)

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

@@ -25,14 +25,14 @@ import com.maddyhome.idea.vim.api.injector
 import com.maddyhome.idea.vim.command.Command
 import com.maddyhome.idea.vim.command.OperatorArguments
 import com.maddyhome.idea.vim.handler.VimActionHandler
-import com.maddyhome.idea.vim.helper.commandState
+import com.maddyhome.idea.vim.helper.vimStateMachine
 import com.maddyhome.idea.vim.newapi.ij
 
 class RepeatChangeAction : VimActionHandler.SingleExecution() {
   override val type: Command.Type = Command.Type.OTHER_WRITABLE
 
   override fun execute(editor: VimEditor, context: ExecutionContext, cmd: Command, operatorArguments: OperatorArguments): Boolean {
-    val state = editor.commandState
+    val state = editor.vimStateMachine
     val lastCommand = VimRepeater.lastChangeCommand
 
     if (lastCommand == null && Extension.lastExtensionHandler == null) return false

src/main/java/com/maddyhome/idea/vim/command/CommandState.kt

@@ -0,0 +1,96 @@
+/*
+ * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
+ * Copyright (C) 2003-2022 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.command
+
+import com.intellij.openapi.editor.Editor
+import com.maddyhome.idea.vim.helper.vimStateMachine
+import com.maddyhome.idea.vim.newapi.vim
+
+/**
+ * COMPATIBILITY-LAYER: Additional class
+ */
+class CommandState(private val machine: VimStateMachine) {
+
+  val isOperatorPending: Boolean
+    get() = machine.isOperatorPending
+
+  val mode: CommandState.Mode
+    get() = machine.mode.ij
+
+  val commandBuilder: CommandBuilder
+    get() = machine.commandBuilder
+
+  val mappingState: MappingState
+    get() = machine.mappingState
+
+  enum class Mode {
+    // Basic modes
+    COMMAND, VISUAL, SELECT, INSERT, CMD_LINE, /*EX*/
+
+    // Additional modes
+    OP_PENDING, REPLACE /*, VISUAL_REPLACE*/, INSERT_NORMAL, INSERT_VISUAL, INSERT_SELECT
+  }
+
+  enum class SubMode {
+    NONE, VISUAL_CHARACTER, VISUAL_LINE, VISUAL_BLOCK
+  }
+
+  companion object {
+    @JvmStatic
+    fun getInstance(editor: Editor): CommandState {
+      return CommandState(editor.vim.vimStateMachine)
+    }
+  }
+}
+
+val CommandState.SubMode.engine: VimStateMachine.SubMode
+  get() = when (this) {
+    CommandState.SubMode.NONE -> VimStateMachine.SubMode.NONE
+    CommandState.SubMode.VISUAL_CHARACTER -> VimStateMachine.SubMode.VISUAL_CHARACTER
+    CommandState.SubMode.VISUAL_LINE -> VimStateMachine.SubMode.VISUAL_LINE
+    CommandState.SubMode.VISUAL_BLOCK -> VimStateMachine.SubMode.VISUAL_BLOCK
+  }
+
+val CommandState.Mode.engine: VimStateMachine.Mode
+  get() = when (this) {
+    CommandState.Mode.COMMAND -> VimStateMachine.Mode.COMMAND
+    CommandState.Mode.VISUAL -> VimStateMachine.Mode.VISUAL
+    CommandState.Mode.SELECT -> VimStateMachine.Mode.SELECT
+    CommandState.Mode.INSERT -> VimStateMachine.Mode.INSERT
+    CommandState.Mode.CMD_LINE -> VimStateMachine.Mode.CMD_LINE
+    CommandState.Mode.OP_PENDING -> VimStateMachine.Mode.OP_PENDING
+    CommandState.Mode.REPLACE -> VimStateMachine.Mode.REPLACE
+    CommandState.Mode.INSERT_NORMAL -> VimStateMachine.Mode.INSERT_NORMAL
+    CommandState.Mode.INSERT_VISUAL -> VimStateMachine.Mode.INSERT_VISUAL
+    CommandState.Mode.INSERT_SELECT -> VimStateMachine.Mode.INSERT_SELECT
+  }
+
+val VimStateMachine.Mode.ij: CommandState.Mode
+  get() = when (this) {
+    VimStateMachine.Mode.COMMAND -> CommandState.Mode.COMMAND
+    VimStateMachine.Mode.VISUAL -> CommandState.Mode.VISUAL
+    VimStateMachine.Mode.SELECT -> CommandState.Mode.SELECT
+    VimStateMachine.Mode.INSERT -> CommandState.Mode.INSERT
+    VimStateMachine.Mode.CMD_LINE -> CommandState.Mode.CMD_LINE
+    VimStateMachine.Mode.OP_PENDING -> CommandState.Mode.OP_PENDING
+    VimStateMachine.Mode.REPLACE -> CommandState.Mode.REPLACE
+    VimStateMachine.Mode.INSERT_NORMAL -> CommandState.Mode.INSERT_NORMAL
+    VimStateMachine.Mode.INSERT_VISUAL -> CommandState.Mode.INSERT_VISUAL
+    VimStateMachine.Mode.INSERT_SELECT -> CommandState.Mode.INSERT_SELECT
+  }

src/main/java/com/maddyhome/idea/vim/extension/VimExtensionFacade.kt

@@ -23,14 +23,15 @@ import com.intellij.openapi.editor.Editor
 import com.maddyhome.idea.vim.KeyHandler
 import com.maddyhome.idea.vim.VimPlugin
 import com.maddyhome.idea.vim.action.change.Extension
+import com.maddyhome.idea.vim.api.VimCaret
+import com.maddyhome.idea.vim.command.MappingMode
 import com.maddyhome.idea.vim.command.SelectionType
 import com.maddyhome.idea.vim.common.CommandAlias
 import com.maddyhome.idea.vim.common.CommandAliasHandler
-import com.maddyhome.idea.vim.common.MappingMode
 import com.maddyhome.idea.vim.helper.CommandLineHelper
 import com.maddyhome.idea.vim.helper.EditorDataContext
 import com.maddyhome.idea.vim.helper.TestInputModel
-import com.maddyhome.idea.vim.helper.commandState
+import com.maddyhome.idea.vim.helper.vimStateMachine
 import com.maddyhome.idea.vim.key.MappingOwner
 import com.maddyhome.idea.vim.key.OperatorFunction
 import com.maddyhome.idea.vim.newapi.vim
@@ -48,6 +49,21 @@ import javax.swing.KeyStroke
 object VimExtensionFacade {
   /** The 'map' command for mapping keys to handlers defined in extensions. */
   @JvmStatic
+  fun putExtensionHandlerMapping(
+    modes: Set<MappingMode>,
+    fromKeys: List<KeyStroke>,
+    pluginOwner: MappingOwner,
+    extensionHandler: ExtensionHandler,
+    recursive: Boolean,
+  ) {
+    VimPlugin.getKey().putKeyMapping(modes, fromKeys, pluginOwner, extensionHandler, recursive)
+  }
+
+  /**
+   * COMPATIBILITY-LAYER: Additional method
+   */
+  /** The 'map' command for mapping keys to handlers defined in extensions. */
+  @JvmStatic
   fun putExtensionHandlerMapping(
     modes: Set<MappingMode>,
     fromKeys: List<KeyStroke>,
@@ -129,7 +145,7 @@ object VimExtensionFacade {
   /** Returns a single key stroke from the user input similar to 'getchar()'. */
   @JvmStatic
   fun inputKeyStroke(editor: Editor): KeyStroke {
-    if (editor.vim.commandState.isDotRepeatInProgress) {
+    if (editor.vim.vimStateMachine.isDotRepeatInProgress) {
       val input = Extension.consumeKeystroke()
       return input ?: error("Not enough keystrokes saved: ${Extension.lastExtensionHandler}")
     }
@@ -137,7 +153,7 @@ object VimExtensionFacade {
     val key: KeyStroke? = if (ApplicationManager.getApplication().isUnitTestMode) {
       val mappingStack = KeyHandler.getInstance().keyStack
       mappingStack.feedSomeStroke() ?: TestInputModel.getInstance(editor).nextKeyStroke()?.also {
-        if (editor.vim.commandState.isRecording) {
+        if (editor.vim.vimStateMachine.isRecording) {
           KeyHandler.getInstance().modalEntryKeys += it
         }
       }
@@ -167,12 +183,24 @@ object VimExtensionFacade {
     return reg.keys
   }
 
+  @JvmStatic
+  fun getRegisterForCaret(register: Char, caret: VimCaret): List<KeyStroke>? {
+    val reg = caret.registerStorage.getRegister(register) ?: return null
+    return reg.keys
+  }
+
   /** Set the current contents of the given register */
   @JvmStatic
   fun setRegister(register: Char, keys: List<KeyStroke?>?) {
     VimPlugin.getRegister().setKeys(register, keys?.filterNotNull() ?: emptyList())
   }
 
+  /** Set the current contents of the given register */
+  @JvmStatic
+  fun setRegisterForCaret(register: Char, caret: VimCaret, keys: List<KeyStroke?>?) {
+    caret.registerStorage.setKeys(register, keys?.filterNotNull() ?: emptyList())
+  }
+
   /** Set the current contents of the given register */
   @JvmStatic
   fun setRegister(register: Char, keys: List<KeyStroke?>?, type: SelectionType) {

src/main/java/com/maddyhome/idea/vim/extension/VimExtensionHandler.kt

@@ -0,0 +1,38 @@
+/*
+ * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
+ * Copyright (C) 2003-2022 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.extension
+
+import com.intellij.openapi.actionSystem.DataContext
+import com.intellij.openapi.editor.Editor
+import com.maddyhome.idea.vim.api.ExecutionContext
+import com.maddyhome.idea.vim.api.VimEditor
+import com.maddyhome.idea.vim.newapi.ij
+
+/**
+ * COMPATIBILITY-LAYER: Created a class, renamed original class
+ */
+interface VimExtensionHandler : ExtensionHandler {
+  override fun execute(editor: VimEditor, context: ExecutionContext) {
+    execute(editor.ij, context.ij)
+  }
+
+  fun execute(editor: Editor, context: DataContext)
+
+  abstract class WithCallback : ExtensionHandler.WithCallback(), VimExtensionHandler
+}

src/main/java/com/maddyhome/idea/vim/extension/VimExtensionRegistrar.kt

@@ -25,9 +25,9 @@ import com.maddyhome.idea.vim.api.VimExtensionRegistrator
 import com.maddyhome.idea.vim.api.injector
 import com.maddyhome.idea.vim.ex.ExException
 import com.maddyhome.idea.vim.key.MappingOwner.Plugin.Companion.remove
+import com.maddyhome.idea.vim.option.ToggleOption
 import com.maddyhome.idea.vim.options.OptionChangeListener
 import com.maddyhome.idea.vim.options.OptionScope
-import com.maddyhome.idea.vim.options.ToggleOption
 import com.maddyhome.idea.vim.statistic.PluginState
 import com.maddyhome.idea.vim.vimscript.model.datatypes.VimDataType
 

src/main/java/com/maddyhome/idea/vim/extension/argtextobj/VimArgTextObjExtension.java

@@ -18,24 +18,21 @@
 
 package com.maddyhome.idea.vim.extension.argtextobj;
 
-import com.intellij.openapi.actionSystem.DataContext;
 import com.intellij.openapi.editor.Caret;
 import com.intellij.openapi.editor.Document;
-import com.intellij.openapi.editor.Editor;
 import com.maddyhome.idea.vim.VimPlugin;
 import com.maddyhome.idea.vim.api.*;
 import com.maddyhome.idea.vim.command.*;
-import com.maddyhome.idea.vim.common.MappingMode;
+import com.maddyhome.idea.vim.command.MappingMode;
 import com.maddyhome.idea.vim.common.TextRange;
 import com.maddyhome.idea.vim.extension.VimExtension;
-import com.maddyhome.idea.vim.extension.VimExtensionHandler;
+import com.maddyhome.idea.vim.extension.ExtensionHandler;
 import com.maddyhome.idea.vim.handler.TextObjectActionHandler;
 import com.maddyhome.idea.vim.helper.InlayHelperKt;
 import com.maddyhome.idea.vim.helper.MessageHelper;
 import com.maddyhome.idea.vim.helper.VimNlsSafe;
 import com.maddyhome.idea.vim.listener.SelectionVimListenerSuppressor;
 import com.maddyhome.idea.vim.listener.VimListenerSuppressor;
-import com.maddyhome.idea.vim.newapi.IjExecutionContext;
 import com.maddyhome.idea.vim.newapi.IjVimCaret;
 import com.maddyhome.idea.vim.newapi.IjVimEditor;
 import com.maddyhome.idea.vim.vimscript.model.datatypes.VimString;
@@ -186,7 +183,7 @@ public class VimArgTextObjExtension implements VimExtension {
   /**
    * A text object for an argument to a function definition or a call.
    */
-  static class ArgumentHandler implements VimExtensionHandler {
+  static class ArgumentHandler implements ExtensionHandler {
     final boolean isInner;
 
     ArgumentHandler(boolean isInner) {
@@ -262,17 +259,17 @@ public class VimArgTextObjExtension implements VimExtension {
     public void execute(@NotNull VimEditor editor, @NotNull ExecutionContext context) {
 
       IjVimEditor vimEditor = (IjVimEditor) editor;
-      @NotNull CommandState commandState = CommandState.getInstance(vimEditor);
-      int count = Math.max(1, commandState.getCommandBuilder().getCount());
+      @NotNull VimStateMachine vimStateMachine = VimStateMachine.getInstance(vimEditor);
+      int count = Math.max(1, vimStateMachine.getCommandBuilder().getCount());
 
       final ArgumentTextObjectHandler textObjectHandler = new ArgumentTextObjectHandler(isInner);
       //noinspection DuplicatedCode
-      if (!commandState.isOperatorPending()) {
+      if (!vimStateMachine.isOperatorPending()) {
         vimEditor.getEditor().getCaretModel().runForEachCaret((Caret caret) -> {
           final TextRange range = textObjectHandler.getRange(vimEditor, new IjVimCaret(caret), context, count, 0, null);
           if (range != null) {
             try (VimListenerSuppressor.Locked ignored = SelectionVimListenerSuppressor.INSTANCE.lock()) {
-              if (commandState.getMode() == CommandState.Mode.VISUAL) {
+              if (vimStateMachine.getMode() == VimStateMachine.Mode.VISUAL) {
                 vimSetSelection(caret, range.getStartOffset(), range.getEndOffset() - 1, true);
               } else {
                 InlayHelperKt.moveToInlayAwareOffset(caret, range.getStartOffset());
@@ -282,8 +279,8 @@ public class VimArgTextObjExtension implements VimExtension {
 
         });
       } else {
-        commandState.getCommandBuilder().completeCommandPart(new Argument(new Command(count,
-          textObjectHandler, Command.Type.MOTION, EnumSet.noneOf(CommandFlags.class))));
+        vimStateMachine.getCommandBuilder().completeCommandPart(new Argument(new Command(count,
+                                                                                         textObjectHandler, Command.Type.MOTION, EnumSet.noneOf(CommandFlags.class))));
       }
     }
   }

src/main/java/com/maddyhome/idea/vim/extension/commentary/CommentaryExtension.kt

@@ -34,13 +34,14 @@ import com.maddyhome.idea.vim.api.injector
 import com.maddyhome.idea.vim.command.Argument
 import com.maddyhome.idea.vim.command.Command
 import com.maddyhome.idea.vim.command.CommandFlags
-import com.maddyhome.idea.vim.command.CommandState
+import com.maddyhome.idea.vim.command.MappingMode
 import com.maddyhome.idea.vim.command.SelectionType
 import com.maddyhome.idea.vim.command.TextObjectVisualType
+import com.maddyhome.idea.vim.command.VimStateMachine
 import com.maddyhome.idea.vim.common.CommandAliasHandler
-import com.maddyhome.idea.vim.common.MappingMode
 import com.maddyhome.idea.vim.common.TextRange
 import com.maddyhome.idea.vim.ex.ranges.Ranges
+import com.maddyhome.idea.vim.extension.ExtensionHandler
 import com.maddyhome.idea.vim.extension.VimExtension
 import com.maddyhome.idea.vim.extension.VimExtensionFacade.addCommand
 import com.maddyhome.idea.vim.extension.VimExtensionFacade.executeNormalWithoutMapping
@@ -48,11 +49,10 @@ import com.maddyhome.idea.vim.extension.VimExtensionFacade.putExtensionHandlerMa
 import com.maddyhome.idea.vim.extension.VimExtensionFacade.putKeyMapping
 import com.maddyhome.idea.vim.extension.VimExtensionFacade.putKeyMappingIfMissing
 import com.maddyhome.idea.vim.extension.VimExtensionFacade.setOperatorFunction
-import com.maddyhome.idea.vim.extension.VimExtensionHandler
 import com.maddyhome.idea.vim.handler.TextObjectActionHandler
 import com.maddyhome.idea.vim.helper.EditorHelper
 import com.maddyhome.idea.vim.helper.PsiHelper
-import com.maddyhome.idea.vim.helper.commandState
+import com.maddyhome.idea.vim.helper.vimStateMachine
 import com.maddyhome.idea.vim.key.OperatorFunction
 import com.maddyhome.idea.vim.newapi.IjVimEditor
 import com.maddyhome.idea.vim.newapi.ij
@@ -63,8 +63,8 @@ class CommentaryExtension : VimExtension {
 
   companion object {
     fun doCommentary(editor: VimEditor, context: ExecutionContext, range: TextRange, selectionType: SelectionType, resetCaret: Boolean): Boolean {
-      val mode = editor.commandState.mode
-      if (mode !== CommandState.Mode.VISUAL) {
+      val mode = editor.vimStateMachine.mode
+      if (mode !== VimStateMachine.Mode.VISUAL) {
         editor.ij.selectionModel.setSelection(range.startOffset, range.endOffset)
       }
 
@@ -82,7 +82,7 @@ class CommentaryExtension : VimExtension {
             injector.actionExecutor.executeAction(actions[1], context)
         } finally {
           // Remove the selection, if we added it
-          if (mode !== CommandState.Mode.VISUAL) {
+          if (mode !== VimStateMachine.Mode.VISUAL) {
             editor.removeSelection()
           }
 
@@ -129,7 +129,7 @@ class CommentaryExtension : VimExtension {
    * E.g. handles the `gc` in `gc_`, by setting the operator function, then invoking `g@` to receive the `_` motion to
    * invoke the operator. This object is both the mapping handler and the operator function.
    */
-  private class CommentaryOperatorHandler : OperatorFunction, VimExtensionHandler {
+  private class CommentaryOperatorHandler : OperatorFunction, ExtensionHandler {
     override val isRepeatable = true
 
     override fun execute(editor: VimEditor, context: ExecutionContext) {
@@ -148,11 +148,11 @@ class CommentaryExtension : VimExtension {
    *
    * This object is both the `<Plug>Commentary` mapping handler and the text object handler
    */
-  private class CommentaryTextObjectMotionHandler : TextObjectActionHandler(), VimExtensionHandler {
+  private class CommentaryTextObjectMotionHandler : TextObjectActionHandler(), ExtensionHandler {
     override val isRepeatable = true
 
     override fun execute(editor: VimEditor, context: ExecutionContext) {
-      val commandState = editor.commandState
+      val commandState = editor.vimStateMachine
       val count = maxOf(1, commandState.commandBuilder.count)
 
       val textObjectHandler = this

src/main/java/com/maddyhome/idea/vim/extension/exchange/VimExchangeExtension.kt

@@ -31,10 +31,11 @@ import com.maddyhome.idea.vim.VimPlugin
 import com.maddyhome.idea.vim.api.ExecutionContext
 import com.maddyhome.idea.vim.api.VimEditor
 import com.maddyhome.idea.vim.api.injector
-import com.maddyhome.idea.vim.command.CommandState
+import com.maddyhome.idea.vim.command.MappingMode
 import com.maddyhome.idea.vim.command.SelectionType
-import com.maddyhome.idea.vim.common.MappingMode
+import com.maddyhome.idea.vim.command.VimStateMachine
 import com.maddyhome.idea.vim.common.TextRange
+import com.maddyhome.idea.vim.extension.ExtensionHandler
 import com.maddyhome.idea.vim.extension.VimExtension
 import com.maddyhome.idea.vim.extension.VimExtensionFacade.executeNormalWithoutMapping
 import com.maddyhome.idea.vim.extension.VimExtensionFacade.getRegister
@@ -42,7 +43,6 @@ import com.maddyhome.idea.vim.extension.VimExtensionFacade.putExtensionHandlerMa
 import com.maddyhome.idea.vim.extension.VimExtensionFacade.putKeyMappingIfMissing
 import com.maddyhome.idea.vim.extension.VimExtensionFacade.setOperatorFunction
 import com.maddyhome.idea.vim.extension.VimExtensionFacade.setRegister
-import com.maddyhome.idea.vim.extension.VimExtensionHandler
 import com.maddyhome.idea.vim.helper.EditorHelper
 import com.maddyhome.idea.vim.helper.fileSize
 import com.maddyhome.idea.vim.helper.moveToInlayAwareLogicalPosition
@@ -95,7 +95,7 @@ class VimExchangeExtension : VimExtension {
     val EXCHANGE_KEY = Key<Exchange>("exchange")
 
     // End mark has always greater of eq offset than start mark
-    class Exchange(val type: CommandState.SubMode, val start: Mark, val end: Mark, val text: String) {
+    class Exchange(val type: VimStateMachine.SubMode, val start: Mark, val end: Mark, val text: String) {
       private var myHighlighter: RangeHighlighter? = null
       fun setHighlighter(highlighter: RangeHighlighter) {
         myHighlighter = highlighter
@@ -112,7 +112,7 @@ class VimExchangeExtension : VimExtension {
     }
   }
 
-  private class ExchangeHandler(private val isLine: Boolean) : VimExtensionHandler {
+  private class ExchangeHandler(private val isLine: Boolean) : ExtensionHandler {
     override val isRepeatable = true
 
     override fun execute(editor: VimEditor, context: ExecutionContext) {
@@ -121,13 +121,13 @@ class VimExchangeExtension : VimExtension {
     }
   }
 
-  private class ExchangeClearHandler : VimExtensionHandler {
+  private class ExchangeClearHandler : ExtensionHandler {
     override fun execute(editor: VimEditor, context: ExecutionContext) {
       clearExchange(editor.ij)
     }
   }
 
-  private class VExchangeHandler : VimExtensionHandler {
+  private class VExchangeHandler : ExtensionHandler {
     override fun execute(editor: VimEditor, context: ExecutionContext) {
       runWriteAction {
         val subMode = editor.subMode
@@ -140,10 +140,10 @@ class VimExchangeExtension : VimExtension {
 
   private class Operator(private val isVisual: Boolean) : OperatorFunction {
     fun Editor.getMarkOffset(mark: Mark) = EditorHelper.getOffset(this, mark.logicalLine, mark.col)
-    fun CommandState.SubMode.getString() = when (this) {
-      CommandState.SubMode.VISUAL_CHARACTER -> "v"
-      CommandState.SubMode.VISUAL_LINE -> "V"
-      CommandState.SubMode.VISUAL_BLOCK -> "\\<C-V>"
+    fun VimStateMachine.SubMode.getString() = when (this) {
+      VimStateMachine.SubMode.VISUAL_CHARACTER -> "v"
+      VimStateMachine.SubMode.VISUAL_LINE -> "V"
+      VimStateMachine.SubMode.VISUAL_BLOCK -> "\\<C-V>"
       else -> error("Invalid SubMode: $this")
     }
 
@@ -151,7 +151,7 @@ class VimExchangeExtension : VimExtension {
       fun highlightExchange(ex: Exchange): RangeHighlighter {
         val attributes = editor.colorsScheme.getAttributes(EditorColors.TEXT_SEARCH_RESULT_ATTRIBUTES)
         val hlArea = when (ex.type) {
-          CommandState.SubMode.VISUAL_LINE -> HighlighterTargetArea.LINES_IN_RANGE
+          VimStateMachine.SubMode.VISUAL_LINE -> HighlighterTargetArea.LINES_IN_RANGE
           // TODO: handle other modes
           else -> HighlighterTargetArea.EXACT_RANGE
         }
@@ -274,7 +274,7 @@ class VimExchangeExtension : VimExtension {
           x.logicalLine - y.logicalLine
         }
 
-      return if (x.type == CommandState.SubMode.VISUAL_BLOCK && y.type == CommandState.SubMode.VISUAL_BLOCK) {
+      return if (x.type == VimStateMachine.SubMode.VISUAL_BLOCK && y.type == VimStateMachine.SubMode.VISUAL_BLOCK) {
         when {
           intersects(x, y) -> {
             ExchangeCompareResult.OVERLAP

src/main/java/com/maddyhome/idea/vim/extension/matchit/Matchit.kt

@@ -33,21 +33,21 @@ import com.maddyhome.idea.vim.api.injector
 import com.maddyhome.idea.vim.command.Argument
 import com.maddyhome.idea.vim.command.Command
 import com.maddyhome.idea.vim.command.CommandFlags
+import com.maddyhome.idea.vim.command.MappingMode
 import com.maddyhome.idea.vim.command.MotionType
 import com.maddyhome.idea.vim.command.OperatorArguments
 import com.maddyhome.idea.vim.common.Direction
-import com.maddyhome.idea.vim.common.MappingMode
+import com.maddyhome.idea.vim.extension.ExtensionHandler
 import com.maddyhome.idea.vim.extension.VimExtension
 import com.maddyhome.idea.vim.extension.VimExtensionFacade
 import com.maddyhome.idea.vim.extension.VimExtensionFacade.putKeyMappingIfMissing
-import com.maddyhome.idea.vim.extension.VimExtensionHandler
 import com.maddyhome.idea.vim.handler.Motion
 import com.maddyhome.idea.vim.handler.MotionActionHandler
 import com.maddyhome.idea.vim.handler.toMotionOrError
 import com.maddyhome.idea.vim.helper.EditorHelper
 import com.maddyhome.idea.vim.helper.PsiHelper
-import com.maddyhome.idea.vim.helper.commandState
 import com.maddyhome.idea.vim.helper.enumSetOf
+import com.maddyhome.idea.vim.helper.vimStateMachine
 import com.maddyhome.idea.vim.newapi.ij
 import com.maddyhome.idea.vim.newapi.vim
 import java.util.*
@@ -94,14 +94,14 @@ class Matchit : VimExtension {
     override var motionType: MotionType = MotionType.INCLUSIVE
   }
 
-  private class MatchitHandler(private val reverse: Boolean) : VimExtensionHandler {
+  private class MatchitHandler(private val reverse: Boolean) : ExtensionHandler {
 
     override fun execute(editor: VimEditor, context: ExecutionContext) {
-      val commandState = editor.commandState
+      val commandState = editor.vimStateMachine
       val count = commandState.commandBuilder.count
 
       // Reset the command count so it doesn't transfer onto subsequent commands.
-      editor.commandState.commandBuilder.resetCount()
+      editor.vimStateMachine.commandBuilder.resetCount()
 
       // Normally we want to jump to the start of the matching pair. But when moving forward in operator
       // pending mode, we want to include the entire match. isInOpPending makes that distinction.

src/main/java/com/maddyhome/idea/vim/extension/multiplecursors/VimMultipleCursorsExtension.kt

@@ -29,13 +29,13 @@ import com.maddyhome.idea.vim.VimPlugin
 import com.maddyhome.idea.vim.api.ExecutionContext
 import com.maddyhome.idea.vim.api.VimEditor
 import com.maddyhome.idea.vim.api.injector
-import com.maddyhome.idea.vim.command.CommandState
-import com.maddyhome.idea.vim.common.MappingMode
+import com.maddyhome.idea.vim.command.MappingMode
+import com.maddyhome.idea.vim.command.VimStateMachine
 import com.maddyhome.idea.vim.common.TextRange
+import com.maddyhome.idea.vim.extension.ExtensionHandler
 import com.maddyhome.idea.vim.extension.VimExtension
 import com.maddyhome.idea.vim.extension.VimExtensionFacade.putExtensionHandlerMapping
 import com.maddyhome.idea.vim.extension.VimExtensionFacade.putKeyMappingIfMissing
-import com.maddyhome.idea.vim.extension.VimExtensionHandler
 import com.maddyhome.idea.vim.group.MotionGroup
 import com.maddyhome.idea.vim.group.visual.vimSetSelection
 import com.maddyhome.idea.vim.helper.EditorHelper
@@ -111,7 +111,7 @@ class VimMultipleCursorsExtension : VimExtension {
     putKeyMappingIfMissing(MappingMode.X, injector.parser.parseKeys("<A-p>"), owner, injector.parser.parseKeys(REMOVE_OCCURRENCE), true)
   }
 
-  abstract class WriteActionHandler : VimExtensionHandler {
+  abstract class WriteActionHandler : ExtensionHandler {
     override fun execute(editor: VimEditor, context: ExecutionContext) {
       ApplicationManager.getApplication().runWriteAction {
         executeInWriteAction(editor.ij, context.ij)
@@ -313,7 +313,7 @@ class VimMultipleCursorsExtension : VimExtension {
 
   private fun enterVisualMode(editor: VimEditor) {
     // We need to reset the key handler to make sure we pick up the fact that we're in visual mode
-    VimPlugin.getVisualMotion().enterVisualMode(editor, CommandState.SubMode.VISUAL_CHARACTER)
+    VimPlugin.getVisualMotion().enterVisualMode(editor, VimStateMachine.SubMode.VISUAL_CHARACTER)
     KeyHandler.getInstance().reset(editor)
   }
 

src/main/java/com/maddyhome/idea/vim/extension/nerdtree/NerdTree.kt

@@ -44,11 +44,11 @@ import com.maddyhome.idea.vim.api.VimEditor
 import com.maddyhome.idea.vim.api.injector
 import com.maddyhome.idea.vim.common.CommandAlias
 import com.maddyhome.idea.vim.common.CommandAliasHandler
-import com.maddyhome.idea.vim.common.CommandNode
-import com.maddyhome.idea.vim.common.CommandPartNode
-import com.maddyhome.idea.vim.common.Node
-import com.maddyhome.idea.vim.common.RootNode
-import com.maddyhome.idea.vim.common.addLeafs
+import com.maddyhome.idea.vim.key.CommandNode
+import com.maddyhome.idea.vim.key.CommandPartNode
+import com.maddyhome.idea.vim.key.Node
+import com.maddyhome.idea.vim.key.RootNode
+import com.maddyhome.idea.vim.key.addLeafs
 import com.maddyhome.idea.vim.ex.ranges.Ranges
 import com.maddyhome.idea.vim.extension.VimExtension
 import com.maddyhome.idea.vim.group.KeyGroup

src/main/java/com/maddyhome/idea/vim/extension/paragraphmotion/ParagraphMotion.kt

@@ -23,11 +23,11 @@ import com.intellij.openapi.editor.Editor
 import com.maddyhome.idea.vim.api.ExecutionContext
 import com.maddyhome.idea.vim.api.VimEditor
 import com.maddyhome.idea.vim.api.injector
-import com.maddyhome.idea.vim.common.MappingMode
+import com.maddyhome.idea.vim.command.MappingMode
+import com.maddyhome.idea.vim.extension.ExtensionHandler
 import com.maddyhome.idea.vim.extension.VimExtension
 import com.maddyhome.idea.vim.extension.VimExtensionFacade
 import com.maddyhome.idea.vim.extension.VimExtensionFacade.putKeyMappingIfMissing
-import com.maddyhome.idea.vim.extension.VimExtensionHandler
 import com.maddyhome.idea.vim.group.MotionGroup
 import com.maddyhome.idea.vim.helper.EditorHelper
 import com.maddyhome.idea.vim.helper.SearchHelper
@@ -45,7 +45,7 @@ class ParagraphMotion : VimExtension {
     putKeyMappingIfMissing(MappingMode.NXO, injector.parser.parseKeys("{"), owner, injector.parser.parseKeys("<Plug>(ParagraphPrevMotion)"), true)
   }
 
-  private class ParagraphMotionHandler(private val count: Int) : VimExtensionHandler {
+  private class ParagraphMotionHandler(private val count: Int) : ExtensionHandler {
     override fun execute(editor: VimEditor, context: ExecutionContext) {
       editor.ij.vimForEachCaret { caret ->
         val motion = moveCaretToNextParagraph(editor.ij, caret, count)

src/main/java/com/maddyhome/idea/vim/extension/replacewithregister/ReplaceWithRegister.kt

@@ -25,17 +25,17 @@ import com.maddyhome.idea.vim.api.ExecutionContext
 import com.maddyhome.idea.vim.api.VimCaret
 import com.maddyhome.idea.vim.api.VimEditor
 import com.maddyhome.idea.vim.api.injector
-import com.maddyhome.idea.vim.command.CommandState
+import com.maddyhome.idea.vim.command.MappingMode
 import com.maddyhome.idea.vim.command.SelectionType
+import com.maddyhome.idea.vim.command.VimStateMachine
 import com.maddyhome.idea.vim.command.isLine
-import com.maddyhome.idea.vim.common.MappingMode
 import com.maddyhome.idea.vim.common.TextRange
+import com.maddyhome.idea.vim.extension.ExtensionHandler
 import com.maddyhome.idea.vim.extension.VimExtension
 import com.maddyhome.idea.vim.extension.VimExtensionFacade
 import com.maddyhome.idea.vim.extension.VimExtensionFacade.executeNormalWithoutMapping
 import com.maddyhome.idea.vim.extension.VimExtensionFacade.putKeyMappingIfMissing
 import com.maddyhome.idea.vim.extension.VimExtensionFacade.setOperatorFunction
-import com.maddyhome.idea.vim.extension.VimExtensionHandler
 import com.maddyhome.idea.vim.group.visual.VimSelection
 import com.maddyhome.idea.vim.helper.EditorDataContext
 import com.maddyhome.idea.vim.helper.mode
@@ -63,22 +63,21 @@ class ReplaceWithRegister : VimExtension {
     putKeyMappingIfMissing(MappingMode.X, injector.parser.parseKeys("gr"), owner, injector.parser.parseKeys(RWR_VISUAL), true)
   }
 
-  private class RwrVisual : VimExtensionHandler {
+  private class RwrVisual : ExtensionHandler {
     override fun execute(editor: VimEditor, context: ExecutionContext) {
-      val caretsAndSelections = mutableMapOf<VimCaret, VimSelection>()
       val typeInEditor = SelectionType.fromSubMode(editor.subMode)
       editor.forEachCaret { caret ->
         val selectionStart = caret.selectionStart
         val selectionEnd = caret.selectionEnd
 
-        caretsAndSelections += caret to VimSelection.create(selectionStart, selectionEnd - 1, typeInEditor, editor)
+        val visualSelection = caret to VimSelection.create(selectionStart, selectionEnd - 1, typeInEditor, editor)
+        doReplace(editor.ij, caret, PutData.VisualSelection(mapOf(visualSelection), typeInEditor))
       }
-      doReplace(editor.ij, PutData.VisualSelection(caretsAndSelections, typeInEditor))
       editor.exitVisualModeNative()
     }
   }
 
-  private class RwrMotion : VimExtensionHandler {
+  private class RwrMotion : ExtensionHandler {
     override val isRepeatable: Boolean = true
 
     override fun execute(editor: VimEditor, context: ExecutionContext) {
@@ -87,7 +86,7 @@ class ReplaceWithRegister : VimExtension {
     }
   }
 
-  private class RwrLine : VimExtensionHandler {
+  private class RwrLine : ExtensionHandler {
     override val isRepeatable: Boolean = true
 
     override fun execute(editor: VimEditor, context: ExecutionContext) {
@@ -97,11 +96,11 @@ class ReplaceWithRegister : VimExtension {
         val lineStart = editor.getLineStartOffset(logicalLine)
         val lineEnd = editor.getLineEndOffset(logicalLine, true)
 
-        caretsAndSelections += caret to VimSelection.create(lineStart, lineEnd, SelectionType.LINE_WISE, editor)
-      }
+        val visualSelection = caret to VimSelection.create(lineStart, lineEnd, SelectionType.LINE_WISE, editor)
+        caretsAndSelections += visualSelection
 
-      val visualSelection = PutData.VisualSelection(caretsAndSelections, SelectionType.LINE_WISE)
-      doReplace(editor.ij, visualSelection)
+        doReplace(editor.ij, caret, PutData.VisualSelection(mapOf(visualSelection), SelectionType.LINE_WISE))
+      }
 
       editor.forEachCaret { caret ->
         val vimStart = caretsAndSelections[caret]?.vimStart
@@ -126,13 +125,14 @@ class ReplaceWithRegister : VimExtension {
         ),
         selectionType
       )
-      doReplace(editor, visualSelection)
+      // todo multicaret
+      doReplace(editor, editor.vim.primaryCaret(), visualSelection)
       return true
     }
 
     private fun getRange(editor: Editor): TextRange? = when (editor.vim.mode) {
-      CommandState.Mode.COMMAND -> VimPlugin.getMark().getChangeMarks(editor.vim)
-      CommandState.Mode.VISUAL -> editor.caretModel.primaryCaret.run { TextRange(selectionStart, selectionEnd) }
+      VimStateMachine.Mode.COMMAND -> VimPlugin.getMark().getChangeMarks(editor.vim)
+      VimStateMachine.Mode.VISUAL -> editor.caretModel.primaryCaret.run { TextRange(selectionStart, selectionEnd) }
       else -> null
     }
   }
@@ -147,8 +147,9 @@ class ReplaceWithRegister : VimExtension {
     @NonNls
     private const val RWR_VISUAL = "<Plug>ReplaceWithRegisterVisual"
 
-    private fun doReplace(editor: Editor, visualSelection: PutData.VisualSelection) {
-      val savedRegister = VimPlugin.getRegister().lastRegister ?: return
+    private fun doReplace(editor: Editor, caret: VimCaret, visualSelection: PutData.VisualSelection) {
+      val lastRegisterChar = injector.registerGroup.lastRegisterChar
+      val savedRegister = caret.registerStorage.getRegister(lastRegisterChar) ?: return
 
       var usedType = savedRegister.type
       var usedText = savedRegister.text
@@ -173,8 +174,8 @@ class ReplaceWithRegister : VimExtension {
         VimPlugin.getPut().putText(IjVimEditor(editor), IjExecutionContext(EditorDataContext.init(editor)), putData)
       }
 
-      VimPlugin.getRegister().saveRegister(savedRegister.name, savedRegister)
-      VimPlugin.getRegister().saveRegister(VimPlugin.getRegister().defaultRegister, savedRegister)
+      caret.registerStorage.saveRegister(savedRegister.name, savedRegister)
+      caret.registerStorage.saveRegister(VimPlugin.getRegister().defaultRegister, savedRegister)
     }
   }
 }

src/main/java/com/maddyhome/idea/vim/extension/surround/VimSurroundExtension.kt

@@ -22,30 +22,31 @@ import com.intellij.openapi.application.runWriteAction
 import com.intellij.openapi.editor.Editor
 import com.maddyhome.idea.vim.VimPlugin
 import com.maddyhome.idea.vim.api.ExecutionContext
+import com.maddyhome.idea.vim.api.VimCaret
 import com.maddyhome.idea.vim.api.VimEditor
 import com.maddyhome.idea.vim.api.injector
-import com.maddyhome.idea.vim.command.CommandState
+import com.maddyhome.idea.vim.command.MappingMode
 import com.maddyhome.idea.vim.command.SelectionType
-import com.maddyhome.idea.vim.common.MappingMode
+import com.maddyhome.idea.vim.command.VimStateMachine
 import com.maddyhome.idea.vim.common.TextRange
+import com.maddyhome.idea.vim.extension.ExtensionHandler
 import com.maddyhome.idea.vim.extension.VimExtension
 import com.maddyhome.idea.vim.extension.VimExtensionFacade.executeNormalWithoutMapping
-import com.maddyhome.idea.vim.extension.VimExtensionFacade.getRegister
+import com.maddyhome.idea.vim.extension.VimExtensionFacade.getRegisterForCaret
 import com.maddyhome.idea.vim.extension.VimExtensionFacade.inputKeyStroke
 import com.maddyhome.idea.vim.extension.VimExtensionFacade.inputString
 import com.maddyhome.idea.vim.extension.VimExtensionFacade.putExtensionHandlerMapping
 import com.maddyhome.idea.vim.extension.VimExtensionFacade.putKeyMappingIfMissing
 import com.maddyhome.idea.vim.extension.VimExtensionFacade.setOperatorFunction
-import com.maddyhome.idea.vim.extension.VimExtensionFacade.setRegister
-import com.maddyhome.idea.vim.extension.VimExtensionHandler
-import com.maddyhome.idea.vim.helper.EditorHelper
-import com.maddyhome.idea.vim.helper.mode
+import com.maddyhome.idea.vim.extension.VimExtensionFacade.setRegisterForCaret
+import com.maddyhome.idea.vim.helper.editorMode
 import com.maddyhome.idea.vim.key.OperatorFunction
 import com.maddyhome.idea.vim.newapi.IjVimCaret
 import com.maddyhome.idea.vim.newapi.IjVimEditor
 import com.maddyhome.idea.vim.newapi.ij
 import com.maddyhome.idea.vim.newapi.vim
 import com.maddyhome.idea.vim.options.helpers.ClipboardOptionHelper
+import com.maddyhome.idea.vim.put.PutData
 import org.jetbrains.annotations.NonNls
 import java.awt.event.KeyEvent
 import javax.swing.KeyStroke
@@ -80,7 +81,7 @@ class VimSurroundExtension : VimExtension {
     }
   }
 
-  private class YSurroundHandler : VimExtensionHandler {
+  private class YSurroundHandler : ExtensionHandler {
     override val isRepeatable = true
 
     override fun execute(editor: VimEditor, context: ExecutionContext) {
@@ -89,7 +90,7 @@ class VimSurroundExtension : VimExtension {
     }
   }
 
-  private class VSurroundHandler : VimExtensionHandler {
+  private class VSurroundHandler : ExtensionHandler {
     override fun execute(editor: VimEditor, context: ExecutionContext) {
       val selectionStart = editor.ij.caretModel.primaryCaret.selectionStart
       // NB: Operator ignores SelectionType anyway
@@ -104,7 +105,7 @@ class VimSurroundExtension : VimExtension {
     }
   }
 
-  private class CSurroundHandler : VimExtensionHandler {
+  private class CSurroundHandler : ExtensionHandler {
     override val isRepeatable = true
 
     override fun execute(editor: VimEditor, context: ExecutionContext) {
@@ -115,28 +116,70 @@ class VimSurroundExtension : VimExtension {
       if (charTo.code == 0) return
 
       val newSurround = getOrInputPair(charTo, editor.ij) ?: return
-      runWriteAction { change(editor.ij, charFrom, newSurround) }
+      runWriteAction { change(editor, context, charFrom, newSurround) }
     }
 
     companion object {
-      fun change(editor: Editor, charFrom: Char, newSurround: Pair<String, String>?) {
-        // We take over the " register, so preserve it
-        val oldValue: List<KeyStroke>? = getRegister(REGISTER)
-        // Extract the inner value
-        perform("di" + pick(charFrom), editor)
-        val innerValue: MutableList<KeyStroke> = getRegister(REGISTER)?.toMutableList() ?: mutableListOf()
-        // Delete the surrounding
-        perform("da" + pick(charFrom), editor)
-        // Insert the surrounding characters and paste
-        if (newSurround != null) {
-          innerValue.addAll(0, injector.parser.parseKeys(newSurround.first))
-          innerValue.addAll(injector.parser.parseKeys(newSurround.second))
+      fun change(editor: VimEditor, context: ExecutionContext, charFrom: Char, newSurround: Pair<String, String>?) {
+        // Save old register values for carets
+        val surroundings = editor.sortedCarets()
+          .map {
+            val oldValue: List<KeyStroke>? = getRegisterForCaret(REGISTER, it)
+            setRegisterForCaret(REGISTER, it, null)
+            SurroundingInfo(it, null, oldValue, null)
+          }
+
+        // Delete surrounding's content
+        perform("di" + pick(charFrom), editor.ij)
+
+        // Add info about surrounding's inner text and location
+        surroundings.forEach {
+          val registerValue = getRegisterForCaret(REGISTER, it.caret)
+          val innerValue = if (registerValue.isNullOrEmpty()) null else registerValue
+          it.innerText = innerValue
+
+          val lineEndOffset = injector.engineEditorHelper.getLineEndOffset(editor, it.caret.getLine().line, false)
+          if (lineEndOffset == it.caret.offset.point) {
+            it.isLineEnd = true
+          }
+        }
+
+        // Remove surrounding
+        perform("da" + pick(charFrom), editor.ij)
+
+        surroundings.forEach {
+          if (it.innerText == null && getRegisterForCaret(REGISTER, it.caret)?.isNotEmpty() == true) {
+            it.innerText = emptyList()
+          }
+
+          // caret should be placed at the first char of inserted text
+          // the best solution would be using [ mark after the paste, but marks are not supported by multicaret
+          // todo
+          if (it.innerText != null) {
+            it.offset = it.caret.offset.point
+          }
+        }
+
+        surroundings
+          .filter { it.innerText != null } // we do nothing with carets that are not inside the surrounding
+          .map { surrounding ->
+            val innerValue = injector.parser.toPrintableString(surrounding.innerText!!)
+            val text = newSurround?.let { it.first + innerValue + it.second } ?: innerValue
+            val textData = PutData.TextData(text, SelectionType.CHARACTER_WISE, emptyList())
+            val putData = PutData(textData, null, 1, insertTextBeforeCaret = !surrounding.isLineEnd, rawIndent = true, caretAfterInsertedText = false)
+
+            surrounding.caret to putData
+          }.forEach {
+            injector.put.putTextForCaret(editor, it.first, context, it.second)
+          }
+
+        surroundings.forEach {
+          it.restoreRegister()
+        }
+
+        if (surroundings.size == 1) {
+          surroundings.first().moveCaret()
         }
-        pasteSurround(innerValue, editor)
-        // Restore the old value
-        setRegister(REGISTER, oldValue)
-        // Jump back to start
-        executeNormalWithoutMapping(injector.parser.parseKeys("`["), editor)
       }
 
       private fun perform(sequence: String, editor: Editor) {
@@ -144,21 +187,6 @@ class VimSurroundExtension : VimExtension {
           .use { executeNormalWithoutMapping(injector.parser.parseKeys("\"" + REGISTER + sequence), editor) }
       }
 
-      private fun pasteSurround(
-        innerValue: List<KeyStroke?>,
-        editor: Editor,
-      ) { // This logic is direct from vim-surround
-        val offset = editor.caretModel.offset
-        val lineEndOffset = EditorHelper.getLineEndForOffset(editor, offset)
-        val motionEndMark = VimPlugin.getMark().getMark(editor.vim, ']')
-        val motionEndOffset = if (motionEndMark != null) {
-          EditorHelper.getOffset(editor, motionEndMark.logicalLine, motionEndMark.col)
-        } else -1
-        val pasteCommand = if (motionEndOffset == lineEndOffset && offset + 1 == lineEndOffset) "p" else "P"
-        setRegister(REGISTER, innerValue)
-        perform(pasteCommand, editor)
-      }
-
       private fun pick(charFrom: Char) = when (charFrom) {
         'a' -> '>'
         'r' -> ']'
@@ -167,7 +195,19 @@ class VimSurroundExtension : VimExtension {
     }
   }
 
-  private class DSurroundHandler : VimExtensionHandler {
+  private data class SurroundingInfo(val caret: VimCaret, var innerText: List<KeyStroke>?, val oldRegisterContent: List<KeyStroke>?, var offset: Int?, var isLineEnd: Boolean = false) {
+    fun restoreRegister() {
+      setRegisterForCaret(REGISTER, caret, oldRegisterContent)
+    }
+
+    fun moveCaret() {
+      if (innerText != null && offset != null) {
+        caret.moveToOffset(offset!! + if (isLineEnd) 1 else 0)
+      }
+    }
+  }
+
+  private class DSurroundHandler : ExtensionHandler {
     override val isRepeatable = true
 
     override fun execute(editor: VimEditor, context: ExecutionContext) {
@@ -175,7 +215,7 @@ class VimSurroundExtension : VimExtension {
       val charFrom = getChar(editor.ij)
       if (charFrom.code == 0) return
 
-      runWriteAction { CSurroundHandler.change(editor.ij, charFrom, null) }
+      runWriteAction { CSurroundHandler.change(editor, context, charFrom, null) }
     }
   }
 
@@ -199,9 +239,9 @@ class VimSurroundExtension : VimExtension {
       return true
     }
 
-    private fun getSurroundRange(editor: Editor): TextRange? = when (editor.mode) {
-      CommandState.Mode.COMMAND -> VimPlugin.getMark().getChangeMarks(editor.vim)
-      CommandState.Mode.VISUAL -> editor.caretModel.primaryCaret.run { TextRange(selectionStart, selectionEnd) }
+    private fun getSurroundRange(editor: Editor): TextRange? = when (editor.editorMode) {
+      VimStateMachine.Mode.COMMAND -> VimPlugin.getMark().getChangeMarks(editor.vim)
+      VimStateMachine.Mode.VISUAL -> editor.caretModel.primaryCaret.run { TextRange(selectionStart, selectionEnd) }
       else -> null
     }
   }

src/main/java/com/maddyhome/idea/vim/extension/textobjentire/VimTextObjEntireExtension.java

@@ -18,26 +18,22 @@
 
 package com.maddyhome.idea.vim.extension.textobjentire;
 
-import com.intellij.openapi.actionSystem.DataContext;
 import com.intellij.openapi.editor.Caret;
-import com.intellij.openapi.editor.Editor;
 import com.maddyhome.idea.vim.api.ExecutionContext;
 import com.maddyhome.idea.vim.api.VimCaret;
 import com.maddyhome.idea.vim.api.VimEditor;
 import com.maddyhome.idea.vim.api.VimInjectorKt;
 import com.maddyhome.idea.vim.command.*;
-import com.maddyhome.idea.vim.common.MappingMode;
+import com.maddyhome.idea.vim.command.MappingMode;
 import com.maddyhome.idea.vim.common.TextRange;
 import com.maddyhome.idea.vim.extension.VimExtension;
-import com.maddyhome.idea.vim.extension.VimExtensionHandler;
+import com.maddyhome.idea.vim.extension.ExtensionHandler;
 import com.maddyhome.idea.vim.handler.TextObjectActionHandler;
 import com.maddyhome.idea.vim.helper.InlayHelperKt;
 import com.maddyhome.idea.vim.listener.SelectionVimListenerSuppressor;
 import com.maddyhome.idea.vim.listener.VimListenerSuppressor;
-import com.maddyhome.idea.vim.newapi.IjExecutionContext;
 import com.maddyhome.idea.vim.newapi.IjVimCaret;
 import com.maddyhome.idea.vim.newapi.IjVimEditor;
-import org.apache.tools.ant.taskdefs.Exec;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
@@ -88,7 +84,7 @@ public class VimTextObjEntireExtension implements VimExtension {
     putKeyMappingIfMissing(MappingMode.XO, VimInjectorKt.getInjector().getParser().parseKeys("ie"), getOwner(), VimInjectorKt.getInjector().getParser().parseKeys("<Plug>textobj-entire-i"), true);
   }
 
-  static class EntireHandler implements VimExtensionHandler {
+  static class EntireHandler implements ExtensionHandler {
     final boolean ignoreLeadingAndTrailing;
 
     EntireHandler(boolean ignoreLeadingAndTrailing) {
@@ -148,17 +144,17 @@ public class VimTextObjEntireExtension implements VimExtension {
 
     @Override
     public void execute(@NotNull VimEditor editor, @NotNull ExecutionContext context) {
-      @NotNull CommandState commandState = CommandState.getInstance(editor);
-      int count = Math.max(1, commandState.getCommandBuilder().getCount());
+      @NotNull VimStateMachine vimStateMachine = VimStateMachine.getInstance(editor);
+      int count = Math.max(1, vimStateMachine.getCommandBuilder().getCount());
 
       final EntireTextObjectHandler textObjectHandler = new EntireTextObjectHandler(ignoreLeadingAndTrailing);
       //noinspection DuplicatedCode
-      if (!commandState.isOperatorPending()) {
+      if (!vimStateMachine.isOperatorPending()) {
         ((IjVimEditor) editor).getEditor().getCaretModel().runForEachCaret((Caret caret) -> {
           final TextRange range = textObjectHandler.getRange(editor, new IjVimCaret(caret), context, count, 0, null);
           if (range != null) {
             try (VimListenerSuppressor.Locked ignored = SelectionVimListenerSuppressor.INSTANCE.lock()) {
-              if (commandState.getMode() == CommandState.Mode.VISUAL) {
+              if (vimStateMachine.getMode() == VimStateMachine.Mode.VISUAL) {
                 vimSetSelection(caret, range.getStartOffset(), range.getEndOffset() - 1, true);
               } else {
                 InlayHelperKt.moveToInlayAwareOffset(caret, range.getStartOffset());
@@ -168,9 +164,9 @@ public class VimTextObjEntireExtension implements VimExtension {
 
         });
       } else {
-        commandState.getCommandBuilder().completeCommandPart(new Argument(new Command(count,
-          textObjectHandler, Command.Type.MOTION,
-          EnumSet.noneOf(CommandFlags.class))));
+        vimStateMachine.getCommandBuilder().completeCommandPart(new Argument(new Command(count,
+                                                                                         textObjectHandler, Command.Type.MOTION,
+                                                                                         EnumSet.noneOf(CommandFlags.class))));
       }
     }
   }

src/main/java/com/maddyhome/idea/vim/extension/textobjindent/VimIndentObject.java

@@ -18,23 +18,20 @@
 
 package com.maddyhome.idea.vim.extension.textobjindent;
 
-import com.intellij.openapi.actionSystem.DataContext;
 import com.intellij.openapi.editor.Caret;
-import com.intellij.openapi.editor.Editor;
 import com.maddyhome.idea.vim.api.ExecutionContext;
 import com.maddyhome.idea.vim.api.VimCaret;
 import com.maddyhome.idea.vim.api.VimEditor;
 import com.maddyhome.idea.vim.api.VimInjectorKt;
 import com.maddyhome.idea.vim.command.*;
-import com.maddyhome.idea.vim.common.MappingMode;
+import com.maddyhome.idea.vim.command.MappingMode;
 import com.maddyhome.idea.vim.common.TextRange;
 import com.maddyhome.idea.vim.extension.VimExtension;
-import com.maddyhome.idea.vim.extension.VimExtensionHandler;
+import com.maddyhome.idea.vim.extension.ExtensionHandler;
 import com.maddyhome.idea.vim.handler.TextObjectActionHandler;
 import com.maddyhome.idea.vim.helper.InlayHelperKt;
 import com.maddyhome.idea.vim.listener.SelectionVimListenerSuppressor;
 import com.maddyhome.idea.vim.listener.VimListenerSuppressor;
-import com.maddyhome.idea.vim.newapi.IjExecutionContext;
 import com.maddyhome.idea.vim.newapi.IjVimCaret;
 import com.maddyhome.idea.vim.newapi.IjVimEditor;
 import org.jetbrains.annotations.NotNull;
@@ -86,7 +83,7 @@ public class VimIndentObject implements VimExtension {
     putKeyMapping(MappingMode.XO, VimInjectorKt.getInjector().getParser().parseKeys("ii"), getOwner(), VimInjectorKt.getInjector().getParser().parseKeys("<Plug>textobj-indent-ii"), true);
   }
 
-  static class IndentObject implements VimExtensionHandler {
+  static class IndentObject implements ExtensionHandler {
     final boolean includeAbove;
     final boolean includeBelow;
 
@@ -275,17 +272,17 @@ public class VimIndentObject implements VimExtension {
     @Override
     public void execute(@NotNull VimEditor editor, @NotNull ExecutionContext context) {
       IjVimEditor vimEditor = (IjVimEditor)editor;
-      @NotNull CommandState commandState = CommandState.getInstance(vimEditor);
-      int count = Math.max(1, commandState.getCommandBuilder().getCount());
+      @NotNull VimStateMachine vimStateMachine = VimStateMachine.getInstance(vimEditor);
+      int count = Math.max(1, vimStateMachine.getCommandBuilder().getCount());
 
       final IndentObjectHandler textObjectHandler = new IndentObjectHandler(includeAbove, includeBelow);
 
-      if (!commandState.isOperatorPending()) {
+      if (!vimStateMachine.isOperatorPending()) {
         ((IjVimEditor)editor).getEditor().getCaretModel().runForEachCaret((Caret caret) -> {
           final TextRange range = textObjectHandler.getRange(vimEditor, new IjVimCaret(caret), context, count, 0, null);
           if (range != null) {
             try (VimListenerSuppressor.Locked ignored = SelectionVimListenerSuppressor.INSTANCE.lock()) {
-              if (commandState.getMode() == CommandState.Mode.VISUAL) {
+              if (vimStateMachine.getMode() == VimStateMachine.Mode.VISUAL) {
                 vimSetSelection(caret, range.getStartOffset(), range.getEndOffset() - 1, true);
               } else {
                 InlayHelperKt.moveToInlayAwareOffset(caret, range.getStartOffset());
@@ -295,9 +292,9 @@ public class VimIndentObject implements VimExtension {
 
         });
       } else {
-        commandState.getCommandBuilder().completeCommandPart(new Argument(new Command(count,
-          textObjectHandler, Command.Type.MOTION,
-          EnumSet.noneOf(CommandFlags.class))));
+        vimStateMachine.getCommandBuilder().completeCommandPart(new Argument(new Command(count,
+                                                                                         textObjectHandler, Command.Type.MOTION,
+                                                                                         EnumSet.noneOf(CommandFlags.class))));
       }
     }
   }

src/main/java/com/maddyhome/idea/vim/group/ChangeGroup.java

@@ -39,7 +39,6 @@ import com.intellij.psi.codeStyle.CodeStyleManager;
 import com.intellij.psi.util.PsiUtilBase;
 import com.intellij.util.containers.ContainerUtil;
 import com.maddyhome.idea.vim.EventFacade;
-import com.maddyhome.idea.vim.RegisterActions;
 import com.maddyhome.idea.vim.VimPlugin;
 import com.maddyhome.idea.vim.api.*;
 import com.maddyhome.idea.vim.command.*;
@@ -107,7 +106,7 @@ public class ChangeGroup extends VimChangeGroupBase {
       injector.getMotion().moveCaret(editor, caret, VimPlugin.getMotion().moveCaretToLineEnd(editor, caret));
     }
 
-    UserDataManager.setVimChangeActionSwitchMode(((IjVimEditor) editor).getEditor(), CommandState.Mode.INSERT);
+    UserDataManager.setVimChangeActionSwitchMode(((IjVimEditor) editor).getEditor(), VimStateMachine.Mode.INSERT);
     insertText(editor, caret, "\n" + IndentConfig.create(((IjVimEditor) editor).getEditor()).createIndentBySize(col));
 
     if (firstLiner) {
@@ -123,10 +122,10 @@ public class ChangeGroup extends VimChangeGroupBase {
    * @param col    The column to indent to
    */
   private void insertNewLineBelow(@NotNull VimEditor editor, @NotNull VimCaret caret, int col) {
-    if (((IjVimEditor) editor).getEditor().isOneLineMode()) return;
+    if (editor.isOneLineMode()) return;
 
-    injector.getMotion().moveCaret(editor, caret, VimPlugin.getMotion().moveCaretToLineEnd(editor, caret));
-    UserDataManager.setVimChangeActionSwitchMode(((IjVimEditor) editor).getEditor(), CommandState.Mode.INSERT);
+    caret.moveToOffset(injector.getMotion().moveCaretToLineEnd(editor, caret));
+    editor.setVimChangeActionSwitchMode(VimStateMachine.Mode.INSERT);
     insertText(editor, caret, "\n" + IndentConfig.create(((IjVimEditor) editor).getEditor()).createIndentBySize(col));
   }
 
@@ -165,41 +164,6 @@ public class ChangeGroup extends VimChangeGroupBase {
   }
 
 
-  @Override
-  public @Nullable Pair<@NotNull TextRange, @NotNull SelectionType> getDeleteRangeAndType(@NotNull VimEditor editor,
-                                                                        @NotNull VimCaret caret,
-                                                                        @NotNull ExecutionContext context,
-                                                                        final @NotNull Argument argument,
-                                                                        boolean isChange,
-                                                                        @NotNull OperatorArguments operatorArguments) {
-    final TextRange range =
-      injector.getMotion().getMotionRange(editor, caret, context, argument, operatorArguments);
-    if (range == null) return null;
-
-    // Delete motion commands that are not linewise become linewise if all the following are true:
-    // 1) The range is across multiple lines
-    // 2) There is only whitespace before the start of the range
-    // 3) There is only whitespace after the end of the range
-    SelectionType type;
-    if (argument.getMotion().isLinewiseMotion()) {
-      type = SelectionType.LINE_WISE;
-    }
-    else {
-      type = SelectionType.CHARACTER_WISE;
-    }
-    final Command motion = argument.getMotion();
-    if (!isChange && !motion.isLinewiseMotion()) {
-      VimLogicalPosition start = editor.offsetToLogicalPosition(range.getStartOffset());
-      VimLogicalPosition end = editor.offsetToLogicalPosition(range.getEndOffset());
-      if (start.getLine() != end.getLine()) {
-        if (!SearchHelper.anyNonWhitespace(((IjVimEditor) editor).getEditor(), range.getStartOffset(), -1) &&
-            !SearchHelper.anyNonWhitespace(((IjVimEditor) editor).getEditor(), range.getEndOffset(), 1)) {
-          type = SelectionType.LINE_WISE;
-        }
-      }
-    }
-    return new Pair<>(range, type);
-  }
 
   @Override
   public @Nullable Pair<@NotNull TextRange, @NotNull SelectionType> getDeleteRangeAndType2(@NotNull VimEditor editor,
@@ -236,60 +200,6 @@ public class ChangeGroup extends VimChangeGroupBase {
     return new Pair<>(range, type);
   }
 
-  /**
-   * Delete the range of text.
-   *
-   * @param editor   The editor to delete the text from
-   * @param caret    The caret to be moved after deletion
-   * @param range    The range to delete
-   * @param type     The type of deletion
-   * @param isChange Is from a change action
-   * @return true if able to delete the text, false if not
-   */
-  @Override
-  public boolean deleteRange(@NotNull VimEditor editor,
-                             @NotNull VimCaret caret,
-                             @NotNull TextRange range,
-                             @Nullable SelectionType type,
-                             boolean isChange) {
-
-    // Update the last column before we delete, or we might be retrieving the data for a line that no longer exists
-    UserDataManager.setVimLastColumn(((IjVimCaret) caret).getCaret(), InlayHelperKt.getInlayAwareVisualColumn(((IjVimCaret) caret).getCaret()));
-
-    boolean removeLastNewLine = removeLastNewLine(editor, range, type);
-    final boolean res = deleteText(editor, range, type);
-    if (removeLastNewLine) {
-      int textLength = ((IjVimEditor) editor).getEditor().getDocument().getTextLength();
-      ((IjVimEditor) editor).getEditor().getDocument().deleteString(textLength - 1, textLength);
-    }
-
-    if (res) {
-      int pos = EditorHelper.normalizeOffset(((IjVimEditor) editor).getEditor(), range.getStartOffset(), isChange);
-      if (type == SelectionType.LINE_WISE) {
-        pos = VimPlugin.getMotion()
-          .moveCaretToLineWithStartOfLineOption(editor, editor.offsetToLogicalPosition(pos).getLine(),
-                                                caret);
-      }
-      injector.getMotion().moveCaret(editor, caret, pos);
-    }
-    return res;
-  }
-
-  private boolean removeLastNewLine(@NotNull VimEditor editor, @NotNull TextRange range, @Nullable SelectionType type) {
-    int endOffset = range.getEndOffset();
-    int fileSize = EditorHelperRt.getFileSize(((IjVimEditor) editor).getEditor());
-    if (endOffset > fileSize) {
-      if (injector.getOptionService().isSet(OptionScope.GLOBAL.INSTANCE, OptionConstants.ideastrictmodeName, OptionConstants.ideastrictmodeName)) {
-        throw new IllegalStateException("Incorrect offset. File size: " + fileSize + ", offset: " + endOffset);
-      }
-      endOffset = fileSize;
-    }
-    return type == SelectionType.LINE_WISE &&
-           range.getStartOffset() != 0 &&
-           ((IjVimEditor) editor).getEditor().getDocument().getCharsSequence().charAt(endOffset - 1) != '\n' &&
-           endOffset == fileSize;
-  }
-
   @Override
   public void insertLineAround(@NotNull VimEditor editor, @NotNull ExecutionContext context, int shift) {
     com.maddyhome.idea.vim.newapi.ChangeGroupKt.insertLineAround(editor, context, shift);
@@ -303,48 +213,6 @@ public class ChangeGroup extends VimChangeGroupBase {
     return com.maddyhome.idea.vim.newapi.ChangeGroupKt.deleteRange(editor, caret, range, type);
   }
 
-  /**
-   * Delete count characters and then enter insert mode
-   *
-   * @param editor The editor to change
-   * @param caret  The caret to be moved
-   * @param count  The number of characters to change
-   * @return true if able to delete count characters, false if not
-   */
-  @Override
-  public boolean changeCharacters(@NotNull VimEditor editor, @NotNull VimCaret caret, int count) {
-    int len = EditorHelper.getLineLength(((IjVimEditor) editor).getEditor());
-    int col = ((IjVimCaret) caret).getCaret().getLogicalPosition().column;
-    if (col + count >= len) {
-      return changeEndOfLine(editor, caret, 1);
-    }
-
-    boolean res = deleteCharacter(editor, caret, count, true);
-    if (res) {
-      UserDataManager.setVimChangeActionSwitchMode(((IjVimEditor) editor).getEditor(), CommandState.Mode.INSERT);
-    }
-
-    return res;
-  }
-
-  /**
-   * Delete from the cursor to the end of count - 1 lines down and enter insert mode
-   *
-   * @param editor The editor to change
-   * @param caret  The caret to perform action on
-   * @param count  The number of lines to change
-   * @return true if able to delete count lines, false if not
-   */
-  @Override
-  public boolean changeEndOfLine(@NotNull VimEditor editor, @NotNull VimCaret caret, int count) {
-    boolean res = deleteEndOfLine(editor, caret, count);
-    if (res) {
-      injector.getMotion().moveCaret(editor, caret, VimPlugin.getMotion().moveCaretToLineEnd(editor, caret));
-      UserDataManager.setVimChangeActionSwitchMode(((IjVimEditor) editor).getEditor(), CommandState.Mode.INSERT);
-    }
-
-    return res;
-  }
 
   /**
    * Delete the text covered by the motion command argument and enter insert mode
@@ -368,9 +236,9 @@ public class ChangeGroup extends VimChangeGroupBase {
     String id = motion.getAction().getId();
     boolean kludge = false;
     boolean bigWord = id.equals(VIM_MOTION_BIG_WORD_RIGHT);
-    final CharSequence chars = ((IjVimEditor) editor).getEditor().getDocument().getCharsSequence();
-    final int offset = ((IjVimCaret) caret).getCaret().getOffset();
-    int fileSize = EditorHelperRt.getFileSize(((IjVimEditor) editor).getEditor());
+    final CharSequence chars = editor.text();
+    final int offset = caret.getOffset().getPoint();
+    int fileSize = ((int)editor.fileSize());
     if (fileSize > 0 && offset < fileSize) {
       final CharacterHelper.CharacterType charType = CharacterHelper.charType(chars.charAt(offset), bigWord);
       if (charType != CharacterHelper.CharacterType.WHITESPACE) {
@@ -379,24 +247,24 @@ public class ChangeGroup extends VimChangeGroupBase {
         if (wordMotions.contains(id) && lastWordChar && motion.getCount() == 1) {
           final boolean res = deleteCharacter(editor, caret, 1, true);
           if (res) {
-            UserDataManager.setVimChangeActionSwitchMode(((IjVimEditor) editor).getEditor(), CommandState.Mode.INSERT);
+            editor.setVimChangeActionSwitchMode(VimStateMachine.Mode.INSERT);
           }
           return res;
         }
         switch (id) {
           case VIM_MOTION_WORD_RIGHT:
             kludge = true;
-            motion.setAction(RegisterActions.findActionOrDie(VIM_MOTION_WORD_END_RIGHT));
+            motion.setAction(injector.getActionExecutor().findVimActionOrDie(VIM_MOTION_WORD_END_RIGHT));
 
             break;
           case VIM_MOTION_BIG_WORD_RIGHT:
             kludge = true;
-            motion.setAction(RegisterActions.findActionOrDie(VIM_MOTION_BIG_WORD_END_RIGHT));
+            motion.setAction(injector.getActionExecutor().findVimActionOrDie(VIM_MOTION_BIG_WORD_END_RIGHT));
 
             break;
           case VIM_MOTION_CAMEL_RIGHT:
             kludge = true;
-            motion.setAction(RegisterActions.findActionOrDie(VIM_MOTION_CAMEL_END_RIGHT));
+            motion.setAction(injector.getActionExecutor().findVimActionOrDie(VIM_MOTION_CAMEL_END_RIGHT));
 
             break;
         }
@@ -405,8 +273,8 @@ public class ChangeGroup extends VimChangeGroupBase {
 
     if (kludge) {
       int cnt = operatorArguments.getCount1() * motion.getCount();
-      int pos1 = SearchHelper.findNextWordEnd(chars, offset, fileSize, cnt, bigWord, false);
-      int pos2 = SearchHelper.findNextWordEnd(chars, pos1, fileSize, -cnt, bigWord, false);
+      int pos1 = injector.getSearchHelper().findNextWordEnd(chars, offset, fileSize, cnt, bigWord, false);
+      int pos2 = injector.getSearchHelper().findNextWordEnd(chars, pos1, fileSize, -cnt, bigWord, false);
       if (logger.isDebugEnabled()) {
         logger.debug("pos=" + offset);
         logger.debug("pos1=" + pos1);
@@ -427,11 +295,11 @@ public class ChangeGroup extends VimChangeGroupBase {
       }
     }
 
-    if (VimPlugin.getOptionService().isSet(OptionScope.GLOBAL.INSTANCE, OptionConstants.experimentalapiName, OptionConstants.experimentalapiName)) {
+    if (injector.getOptionService().isSet(OptionScope.GLOBAL.INSTANCE, OptionConstants.experimentalapiName, OptionConstants.experimentalapiName)) {
       Pair<TextRange, SelectionType> deleteRangeAndType =
         getDeleteRangeAndType2(editor, caret, context, argument, true, operatorArguments.withCount0(count0));
       if (deleteRangeAndType == null) return false;
-      ChangeGroupKt.changeRange(((IjVimEditor) editor).getEditor(), ((IjVimCaret) caret).getCaret(), deleteRangeAndType.getFirst(), deleteRangeAndType.getSecond(), ((IjExecutionContext) context).getContext());
+      //ChangeGroupKt.changeRange(((IjVimEditor) editor).getEditor(), ((IjVimCaret) caret).getCaret(), deleteRangeAndType.getFirst(), deleteRangeAndType.getSecond(), ((IjExecutionContext) context).getContext());
       return true;
     }
     else {
@@ -442,23 +310,6 @@ public class ChangeGroup extends VimChangeGroupBase {
     }
   }
 
-  /**
-   * Counts number of lines in the visual block.
-   * <p>
-   * The result includes empty and short lines which does not have explicit start position (caret).
-   *
-   * @param editor The editor the block was selected in
-   * @param range  The range corresponding to the selected block
-   * @return total number of lines
-   */
-  public static int getLinesCountInVisualBlock(@NotNull VimEditor editor, @NotNull TextRange range) {
-    final int[] startOffsets = range.getStartOffsets();
-    if (startOffsets.length == 0) return 0;
-    final VimLogicalPosition firstStart = editor.offsetToLogicalPosition(startOffsets[0]);
-    final VimLogicalPosition lastStart = editor.offsetToLogicalPosition(startOffsets[range.size() - 1]);
-    return lastStart.getLine() - firstStart.getLine() + 1;
-  }
-
   /**
    * Toggles the case of count characters
    *
@@ -484,11 +335,11 @@ public class ChangeGroup extends VimChangeGroupBase {
                              @NotNull TextRange range,
                              boolean append,
                              @NotNull OperatorArguments operatorArguments) {
-    final int lines = getLinesCountInVisualBlock(editor, range);
+    final int lines = VimChangeGroupBase.Companion.getLinesCountInVisualBlock(editor, range);
     final VimLogicalPosition startPosition = editor.offsetToLogicalPosition(range.getStartOffset());
 
-    boolean visualBlockMode = operatorArguments.getMode() == CommandState.Mode.VISUAL &&
-                              operatorArguments.getSubMode() == CommandState.SubMode.VISUAL_BLOCK;
+    boolean visualBlockMode = operatorArguments.getMode() == VimStateMachine.Mode.VISUAL &&
+                              operatorArguments.getSubMode() == VimStateMachine.SubMode.VISUAL_BLOCK;
     for (Caret caret : ((IjVimEditor) editor).getEditor().getCaretModel().getAllCarets()) {
       final int line = startPosition.getLine();
       int column = startPosition.getColumn();
@@ -589,24 +440,24 @@ public class ChangeGroup extends VimChangeGroupBase {
     int col = 0;
     int lines = 0;
     if (type == SelectionType.BLOCK_WISE) {
-      lines = getLinesCountInVisualBlock(editor, range);
+      lines = VimChangeGroupBase.Companion.getLinesCountInVisualBlock(editor, range);
       col = editor.offsetToLogicalPosition(range.getStartOffset()).getColumn();
-      if (UserDataManager.getVimLastColumn(((IjVimCaret) caret).getCaret()) == VimMotionGroupBase.LAST_COLUMN) {
+      if (caret.getVimLastColumn() == VimMotionGroupBase.LAST_COLUMN) {
         col = VimMotionGroupBase.LAST_COLUMN;
       }
     }
-    boolean after = range.getEndOffset() >= EditorHelperRt.getFileSize(((IjVimEditor) editor).getEditor());
+    boolean after = range.getEndOffset() >= editor.fileSize();
 
-    final VimLogicalPosition lp = editor.offsetToLogicalPosition(VimPlugin.getMotion().moveCaretToLineStartSkipLeading(editor, caret));
+    final VimLogicalPosition lp = editor.offsetToLogicalPosition(injector.getMotion().moveCaretToLineStartSkipLeading(editor, caret));
 
     boolean res = deleteRange(editor, caret, range, type, true);
     if (res) {
       if (type == SelectionType.LINE_WISE) {
         // Please don't use `getDocument().getText().isEmpty()` because it converts CharSequence into String
-        if (((IjVimEditor) editor).getEditor().getDocument().getTextLength() == 0) {
+        if (editor.fileSize() == 0) {
           insertBeforeCursor(editor, context);
         }
-        else if (after && !EditorHelperRt.endsWithNewLine(((IjVimEditor) editor).getEditor())) {
+        else if (after && !EngineEditorHelperKt.endsWithNewLine(editor)) {
           insertNewLineBelow(editor, caret, lp.getColumn());
         }
         else {
@@ -617,7 +468,7 @@ public class ChangeGroup extends VimChangeGroupBase {
         if (type == SelectionType.BLOCK_WISE) {
           setInsertRepeat(lines, col, false);
         }
-        UserDataManager.setVimChangeActionSwitchMode(((IjVimEditor) editor).getEditor(), CommandState.Mode.INSERT);
+        UserDataManager.setVimChangeActionSwitchMode(((IjVimEditor) editor).getEditor(), VimStateMachine.Mode.INSERT);
       }
     }
     else {
@@ -824,7 +675,7 @@ public class ChangeGroup extends VimChangeGroupBase {
               }
             }
             if (pos > wsoff) {
-              deleteText(editor, new TextRange(wsoff, pos), null);
+              deleteText(editor, new TextRange(wsoff, pos), null, caret);
             }
           }
         }

src/main/java/com/maddyhome/idea/vim/group/FileGroup.java

@@ -38,8 +38,7 @@ import com.intellij.openapi.vfs.VirtualFile;
 import com.intellij.openapi.vfs.VirtualFileVisitor;
 import com.maddyhome.idea.vim.VimPlugin;
 import com.maddyhome.idea.vim.api.*;
-import com.maddyhome.idea.vim.command.CommandState;
-import com.maddyhome.idea.vim.common.GoalCommand;
+import com.maddyhome.idea.vim.command.VimStateMachine;
 import com.maddyhome.idea.vim.common.TextRange;
 import com.maddyhome.idea.vim.helper.EditorHelper;
 import com.maddyhome.idea.vim.helper.EditorHelperRt;
@@ -48,7 +47,6 @@ import com.maddyhome.idea.vim.helper.SearchHelper;
 import com.maddyhome.idea.vim.newapi.ExecuteExtensionKt;
 import com.maddyhome.idea.vim.newapi.IjExecutionContext;
 import com.maddyhome.idea.vim.newapi.IjVimEditor;
-import com.maddyhome.idea.vim.options.OptionConstants;
 import com.maddyhome.idea.vim.options.OptionScope;
 import com.maddyhome.idea.vim.vimscript.model.datatypes.VimString;
 import com.maddyhome.idea.vim.vimscript.services.IjVimOptionService;
@@ -290,7 +288,7 @@ public class FileGroup extends VimFileBase {
     StringBuilder msg = new StringBuilder();
     Document doc = editor.getDocument();
 
-    if (CommandState.getInstance(new IjVimEditor(editor)).getMode() != CommandState.Mode.VISUAL) {
+    if (VimStateMachine.getInstance(new IjVimEditor(editor)).getMode() != VimStateMachine.Mode.VISUAL) {
       LogicalPosition lp = editor.getCaretModel().getLogicalPosition();
       int col = editor.getCaretModel().getOffset() - doc.getLineStartOffset(lp.line);
       int endoff = doc.getLineEndOffset(lp.line);

src/main/java/com/maddyhome/idea/vim/group/KeyGroup.java

@@ -37,9 +37,8 @@ import com.maddyhome.idea.vim.VimPlugin;
 import com.maddyhome.idea.vim.action.ComplicatedKeysAction;
 import com.maddyhome.idea.vim.action.VimShortcutKeyAction;
 import com.maddyhome.idea.vim.api.*;
-import com.maddyhome.idea.vim.common.MappingMode;
-import com.maddyhome.idea.vim.common.Node;
-import com.maddyhome.idea.vim.common.NodesKt;
+import com.maddyhome.idea.vim.command.MappingMode;
+import com.maddyhome.idea.vim.key.Node;
 import com.maddyhome.idea.vim.ex.ExOutputModel;
 import com.maddyhome.idea.vim.handler.EditorActionHandlerBase;
 import com.maddyhome.idea.vim.helper.HelperKt;

src/main/java/com/maddyhome/idea/vim/group/MarkGroup.java

@@ -44,7 +44,6 @@ import com.maddyhome.idea.vim.helper.EditorHelper;
 import com.maddyhome.idea.vim.helper.HelperKt;
 import com.maddyhome.idea.vim.mark.*;
 import com.maddyhome.idea.vim.newapi.IjVimEditor;
-import com.maddyhome.idea.vim.options.OptionConstants;
 import com.maddyhome.idea.vim.options.OptionScope;
 import com.maddyhome.idea.vim.vimscript.services.IjVimOptionService;
 import org.jdom.Element;
@@ -60,8 +59,7 @@ import static com.maddyhome.idea.vim.mark.VimMarkConstants.SAVE_FILE_MARKS;
  * This class contains all the mark related functionality
  */
 @State(name = "VimMarksSettings", storages = {
-  @Storage(value = "$APP_CONFIG$/vim_settings_local.xml", roamingType = RoamingType.DISABLED)
-})
+  @Storage(value = "$APP_CONFIG$/vim_settings_local.xml", roamingType = RoamingType.DISABLED)})
 public class MarkGroup extends VimMarkGroupBase implements PersistentStateComponent<Element> {
   public void editorReleased(@NotNull EditorFactoryEvent event) {
     // Save off the last caret position of the file before it is closed
@@ -92,7 +90,7 @@ public class MarkGroup extends VimMarkGroupBase implements PersistentStateCompon
    *
    * @param doc The editor to get the marks for
    * @return The map of marks. The keys are <code>Character</code>s of the mark names, the values are
-   *         <code>Mark</code>s.
+   * <code>Mark</code>s.
    */
   private @Nullable FileMarks<Character, Mark> getFileMarks(final @NotNull Document doc) {
     VirtualFile vf = FileDocumentManager.getInstance().getFile(doc);
@@ -127,7 +125,8 @@ public class MarkGroup extends VimMarkGroupBase implements PersistentStateCompon
 
   public void saveData(@NotNull Element element) {
     Element marksElem = new Element("globalmarks");
-    if (!VimPlugin.getOptionService().isSet(OptionScope.GLOBAL.INSTANCE, IjVimOptionService.ideamarksName, IjVimOptionService.ideamarksName)) {
+    if (!VimPlugin.getOptionService()
+      .isSet(OptionScope.GLOBAL.INSTANCE, IjVimOptionService.ideamarksName, IjVimOptionService.ideamarksName)) {
       for (Mark mark : globalMarks.values()) {
         if (!mark.isClear()) {
           Element markElem = new Element("mark");
@@ -165,8 +164,7 @@ public class MarkGroup extends VimMarkGroupBase implements PersistentStateCompon
         fileMarkElem.setAttribute("name", file);
         fileMarkElem.setAttribute("timestamp", Long.toString(marks.getMyTimestamp().getTime()));
         for (Mark mark : marks.values()) {
-          if (!mark.isClear() && !Character.isUpperCase(mark.getKey()) &&
-              SAVE_FILE_MARKS.indexOf(mark.getKey()) >= 0) {
+          if (!mark.isClear() && !Character.isUpperCase(mark.getKey()) && SAVE_FILE_MARKS.indexOf(mark.getKey()) >= 0) {
             Element markElem = new Element("mark");
             markElem.setAttribute("key", Character.toString(mark.getKey()));
             markElem.setAttribute("line", Integer.toString(mark.getLogicalLine()));
@@ -200,14 +198,15 @@ public class MarkGroup extends VimMarkGroupBase implements PersistentStateCompon
     // (see com.intellij.openapi.application.Application.runReadAction())
 
     Element marksElem = element.getChild("globalmarks");
-    if (marksElem != null && !VimPlugin.getOptionService().isSet(OptionScope.GLOBAL.INSTANCE, IjVimOptionService.ideamarksName, IjVimOptionService.ideamarksName)) {
+    if (marksElem != null &&
+        !VimPlugin.getOptionService()
+          .isSet(OptionScope.GLOBAL.INSTANCE, IjVimOptionService.ideamarksName, IjVimOptionService.ideamarksName)) {
       List<Element> markList = marksElem.getChildren("mark");
       for (Element aMarkList : markList) {
         Mark mark = VimMark.create(aMarkList.getAttributeValue("key").charAt(0),
                                    Integer.parseInt(aMarkList.getAttributeValue("line")),
                                    Integer.parseInt(aMarkList.getAttributeValue("column")),
-                                   aMarkList.getAttributeValue("filename"),
-                                   aMarkList.getAttributeValue("protocol"));
+                                   aMarkList.getAttributeValue("filename"), aMarkList.getAttributeValue("protocol"));
 
         if (mark != null) {
           globalMarks.put(mark.getKey(), mark);
@@ -239,8 +238,7 @@ public class MarkGroup extends VimMarkGroupBase implements PersistentStateCompon
         for (Element aMarkList : markList) {
           Mark mark = VimMark.create(aMarkList.getAttributeValue("key").charAt(0),
                                      Integer.parseInt(aMarkList.getAttributeValue("line")),
-                                     Integer.parseInt(aMarkList.getAttributeValue("column")),
-                                     filename,
+                                     Integer.parseInt(aMarkList.getAttributeValue("column")), filename,
                                      aMarkList.getAttributeValue("protocol"));
 
           if (mark != null) fmarks.put(mark.getKey(), mark);
@@ -290,6 +288,7 @@ public class MarkGroup extends VimMarkGroupBase implements PersistentStateCompon
   public static class MarkUpdater implements DocumentListener {
 
     public static MarkUpdater INSTANCE = new MarkUpdater();
+
     /**
      * Creates the listener for the supplied editor
      */
@@ -313,8 +312,7 @@ public class MarkGroup extends VimMarkGroupBase implements PersistentStateCompon
       Editor anEditor = getAnEditor(doc);
       VimInjectorKt.getInjector().getMarkGroup()
         .updateMarkFromDelete(anEditor == null ? null : new IjVimEditor(anEditor),
-                              VimPlugin.getMark().getAllFileMarks(doc),
-                              event.getOffset(), event.getOldLength());
+                              VimPlugin.getMark().getAllFileMarks(doc), event.getOffset(), event.getOldLength());
       // TODO - update jumps
     }
 
@@ -361,7 +359,10 @@ public class MarkGroup extends VimMarkGroupBase implements PersistentStateCompon
     @Override
     public void bookmarkAdded(@NotNull BookmarkGroup group, com.intellij.ide.bookmark.@NotNull Bookmark bookmark) {
       if (!VimPlugin.isEnabled()) return;
-      if (!VimPlugin.getOptionService().isSet(OptionScope.GLOBAL.INSTANCE, IjVimOptionService.ideamarksName, IjVimOptionService.ideamarksName)) return;
+      if (!VimPlugin.getOptionService()
+        .isSet(OptionScope.GLOBAL.INSTANCE, IjVimOptionService.ideamarksName, IjVimOptionService.ideamarksName)) {
+        return;
+      }
 
       if (!(bookmark instanceof LineBookmark)) return;
       BookmarksManager bookmarksManager = BookmarksManager.getInstance(myProject);
@@ -378,7 +379,10 @@ public class MarkGroup extends VimMarkGroupBase implements PersistentStateCompon
     @Override
     public void bookmarkRemoved(@NotNull BookmarkGroup group, com.intellij.ide.bookmark.@NotNull Bookmark bookmark) {
       if (!VimPlugin.isEnabled()) return;
-      if (!VimPlugin.getOptionService().isSet(OptionScope.GLOBAL.INSTANCE, IjVimOptionService.ideamarksName, IjVimOptionService.ideamarksName)) return;
+      if (!VimPlugin.getOptionService()
+        .isSet(OptionScope.GLOBAL.INSTANCE, IjVimOptionService.ideamarksName, IjVimOptionService.ideamarksName)) {
+        return;
+      }
 
       if (!(bookmark instanceof LineBookmark)) return;
       BookmarksManager bookmarksManager = BookmarksManager.getInstance(myProject);
@@ -387,7 +391,8 @@ public class MarkGroup extends VimMarkGroupBase implements PersistentStateCompon
       if (type == null) return;
       char ch = type.getMnemonic();
       if (GLOBAL_MARKS.indexOf(ch) != -1) {
-        FileMarks<Character, Mark> fmarks = VimPlugin.getMark().getFileMarks(((LineBookmark)bookmark).getFile().getPath());
+        FileMarks<Character, Mark> fmarks =
+          VimPlugin.getMark().getFileMarks(((LineBookmark)bookmark).getFile().getPath());
         fmarks.remove(ch);
         VimPlugin.getMark().globalMarks.remove(ch);
       }
@@ -404,6 +409,16 @@ public class MarkGroup extends VimMarkGroupBase implements PersistentStateCompon
     }
   }
 
+  /**
+   * COMPATIBILITY-LAYER: Method added
+   *
+   * @deprecated Please use method with VimEditor
+   */
+  @Deprecated
+  public void saveJumpLocation(Editor editor) {
+    this.saveJumpLocation(new IjVimEditor(editor));
+  }
+
   private static final int SAVE_MARK_COUNT = 20;
 
   private static final Logger logger = Logger.getInstance(MarkGroup.class.getName());

src/main/java/com/maddyhome/idea/vim/group/MotionGroup.java

@@ -711,7 +711,7 @@ public class MotionGroup extends VimMotionGroupBase {
   }
 
   private static int getScrollJump(@NotNull Editor editor, int height) {
-    final EnumSet<CommandFlags> flags = CommandState.getInstance(new IjVimEditor(editor)).getExecutingCommandFlags();
+    final EnumSet<CommandFlags> flags = VimStateMachine.getInstance(new IjVimEditor(editor)).getExecutingCommandFlags();
     final boolean scrollJump = !flags.contains(CommandFlags.FLAG_IGNORE_SCROLL_JUMP);
 
     // Default value is 1. Zero is a valid value, but we normalise to 1 - we always want to scroll at least one line
@@ -736,7 +736,7 @@ public class MotionGroup extends VimMotionGroupBase {
     final int halfWidth = getApproximateScreenWidth(editor) / 2;
     final int scrollOffset = getNormalizedSideScrollOffset(editor);
 
-    final EnumSet<CommandFlags> flags = CommandState.getInstance(new IjVimEditor(editor)).getExecutingCommandFlags();
+    final EnumSet<CommandFlags> flags = VimStateMachine.getInstance(new IjVimEditor(editor)).getExecutingCommandFlags();
     final boolean allowSidescroll = !flags.contains(CommandFlags.FLAG_IGNORE_SIDE_SCROLL_JUMP);
     int sidescroll = ((VimInt) VimPlugin.getOptionService().getOptionValue(new OptionScope.LOCAL(new IjVimEditor(editor)), OptionConstants.sidescrollName, OptionConstants.sidescrollName)).getValue();
 
@@ -1200,7 +1200,7 @@ public class MotionGroup extends VimMotionGroupBase {
     if (fileEditor instanceof TextEditor) {
       final Editor editor = ((TextEditor)fileEditor).getEditor();
       ExOutputModel.getInstance(editor).clear();
-      if (CommandState.getInstance(new IjVimEditor(editor)).getMode() == CommandState.Mode.VISUAL) {
+      if (VimStateMachine.getInstance(new IjVimEditor(editor)).getMode() == VimStateMachine.Mode.VISUAL) {
         ModeHelper.exitVisualMode(editor);
         KeyHandler.getInstance().reset(new IjVimEditor(editor));
       }

src/main/java/com/maddyhome/idea/vim/group/ProcessGroup.java

@@ -37,7 +37,7 @@ import com.maddyhome.idea.vim.KeyHandler;
 import com.maddyhome.idea.vim.VimPlugin;
 import com.maddyhome.idea.vim.api.*;
 import com.maddyhome.idea.vim.command.Command;
-import com.maddyhome.idea.vim.command.CommandState;
+import com.maddyhome.idea.vim.command.VimStateMachine;
 import com.maddyhome.idea.vim.ex.ExException;
 import com.maddyhome.idea.vim.ex.InvalidCommandException;
 import com.maddyhome.idea.vim.helper.UiHelper;
@@ -90,7 +90,7 @@ public class ProcessGroup extends VimProcessGroupBase {
     if (editor.isOneLineMode()) return;
 
     String initText = getRange(((IjVimEditor) editor).getEditor(), cmd);
-    CommandState.getInstance(editor).pushModes(CommandState.Mode.CMD_LINE, CommandState.SubMode.NONE);
+    VimStateMachine.getInstance(editor).pushModes(VimStateMachine.Mode.CMD_LINE, VimStateMachine.SubMode.NONE);
     ExEntryPanel panel = ExEntryPanel.getInstance();
     panel.activate(((IjVimEditor) editor).getEditor(), ((IjExecutionContext) context).getContext(), ":", initText, 1);
   }
@@ -108,7 +108,7 @@ public class ProcessGroup extends VimProcessGroupBase {
       return true;
     }
     else {
-      CommandState.getInstance(editor).popModes();
+      VimStateMachine.getInstance(editor).popModes();
       KeyHandler.getInstance().reset(editor);
       return false;
     }
@@ -119,7 +119,7 @@ public class ProcessGroup extends VimProcessGroupBase {
     panel.deactivate(true);
     boolean res = true;
     try {
-      CommandState.getInstance(editor).popModes();
+      VimStateMachine.getInstance(editor).popModes();
 
       logger.debug("processing command");
 
@@ -152,11 +152,11 @@ public class ProcessGroup extends VimProcessGroupBase {
 
   // commands executed from map command / macro should not be added to history
   private boolean skipHistory(VimEditor editor) {
-    return CommandState.getInstance(editor).getMappingState().isExecutingMap() || injector.getMacro().isExecutingMacro();
+    return VimStateMachine.getInstance(editor).getMappingState().isExecutingMap() || injector.getMacro().isExecutingMacro();
   }
 
   public void cancelExEntry(final @NotNull VimEditor editor, boolean resetCaret) {
-    CommandState.getInstance(editor).popModes();
+    VimStateMachine.getInstance(editor).popModes();
     KeyHandler.getInstance().reset(editor);
     ExEntryPanel panel = ExEntryPanel.getInstance();
     panel.deactivate(true, resetCaret);
@@ -165,14 +165,14 @@ public class ProcessGroup extends VimProcessGroupBase {
   @Override
   public void startFilterCommand(@NotNull VimEditor editor, ExecutionContext context, @NotNull Command cmd) {
     String initText = getRange(((IjVimEditor) editor).getEditor(), cmd) + "!";
-    CommandState.getInstance(editor).pushModes(CommandState.Mode.CMD_LINE, CommandState.SubMode.NONE);
+    VimStateMachine.getInstance(editor).pushModes(VimStateMachine.Mode.CMD_LINE, VimStateMachine.SubMode.NONE);
     ExEntryPanel panel = ExEntryPanel.getInstance();
     panel.activate(((IjVimEditor) editor).getEditor(), ((IjExecutionContext) context).getContext(), ":", initText, 1);
   }
 
   private @NotNull String getRange(Editor editor, @NotNull Command cmd) {
     String initText = "";
-    if (CommandState.getInstance(new IjVimEditor(editor)).getMode() == CommandState.Mode.VISUAL) {
+    if (VimStateMachine.getInstance(new IjVimEditor(editor)).getMode() == VimStateMachine.Mode.VISUAL) {
       initText = "'<,'>";
     }
     else if (cmd.getRawCount() > 0) {

src/main/java/com/maddyhome/idea/vim/group/SearchGroup.java

@@ -890,6 +890,10 @@ public class SearchGroup extends VimSearchGroupBase implements PersistentStateCo
   @Override
   public void setLastSearchPattern(@Nullable String lastSearchPattern) {
     this.lastSearch = lastSearchPattern;
+    if (showSearchHighlight) {
+      resetIncsearchHighlights();
+      updateSearchHighlights();
+    }
   }
 
   @Override

src/main/java/com/maddyhome/idea/vim/group/copy/PutGroup.kt

@@ -34,8 +34,8 @@ import com.maddyhome.idea.vim.api.ExecutionContext
 import com.maddyhome.idea.vim.api.VimCaret
 import com.maddyhome.idea.vim.api.VimEditor
 import com.maddyhome.idea.vim.api.injector
-import com.maddyhome.idea.vim.command.CommandState
 import com.maddyhome.idea.vim.command.SelectionType
+import com.maddyhome.idea.vim.command.VimStateMachine
 import com.maddyhome.idea.vim.command.isBlock
 import com.maddyhome.idea.vim.command.isChar
 import com.maddyhome.idea.vim.command.isLine
@@ -60,10 +60,14 @@ import java.awt.datatransfer.DataFlavor
 import kotlin.math.min
 
 class PutGroup : VimPutBase() {
-  override fun putTextForCaret(editor: VimEditor, caret: VimCaret, context: ExecutionContext, data: PutData): Boolean {
+  override fun putTextForCaret(editor: VimEditor, caret: VimCaret, context: ExecutionContext, data: PutData, updateVisualMarks: Boolean): Boolean {
     val additionalData = collectPreModificationData(editor, data)
+    data.visualSelection?.let { deleteSelectedText(editor, data) }
     val processedText = processText(editor, data) ?: return false
     putForCaret(editor, caret, data, additionalData, context, processedText)
+    if (editor.primaryCaret() == caret && updateVisualMarks) {
+      wrapInsertedTextWithVisualMarks(editor, data, processedText)
+    }
     return true
   }
 
@@ -75,7 +79,7 @@ class PutGroup : VimPutBase() {
     additionalData: Map<String, Any>,
   ) {
     val visualSelection = data.visualSelection
-    val subMode = visualSelection?.typeInEditor?.toSubMode() ?: CommandState.SubMode.NONE
+    val subMode = visualSelection?.typeInEditor?.toSubMode() ?: VimStateMachine.SubMode.NONE
     if (OptionConstants.clipboard_ideaput in (
       injector.optionService
         .getOptionValue(OptionScope.GLOBAL, OptionConstants.clipboardName) as VimString
@@ -113,12 +117,14 @@ class PutGroup : VimPutBase() {
     val startOffsets = prepareDocumentAndGetStartOffsets(editor, caret, text.typeInRegister, data, additionalData)
 
     startOffsets.forEach { startOffset ->
-      val subMode = data.visualSelection?.typeInEditor?.toSubMode() ?: CommandState.SubMode.NONE
+      val subMode = data.visualSelection?.typeInEditor?.toSubMode() ?: VimStateMachine.SubMode.NONE
       val endOffset = putTextInternal(
         editor, caret, context, text.text, text.typeInRegister, subMode,
         startOffset, data.count, data.indent, data.caretAfterInsertedText
       )
-      VimPlugin.getMark().setChangeMarks(editor, TextRange(startOffset, endOffset))
+      if (caret == editor.primaryCaret()) {
+        VimPlugin.getMark().setChangeMarks(editor, TextRange(startOffset, endOffset))
+      }
       moveCaretToEndPosition(
         editor,
         caret,
@@ -233,7 +239,7 @@ class PutGroup : VimPutBase() {
     vimEditor: VimEditor,
     vimContext: ExecutionContext,
     text: ProcessedTextData,
-    subMode: CommandState.SubMode,
+    subMode: VimStateMachine.SubMode,
     data: PutData,
     additionalData: Map<String, Any>,
   ) {

src/main/java/com/maddyhome/idea/vim/group/copy/YankGroup.kt

@@ -18,18 +18,16 @@
 
 package com.maddyhome.idea.vim.group.copy
 
-import com.intellij.openapi.editor.Caret
-import com.intellij.openapi.editor.Editor
 import com.intellij.util.containers.ContainerUtil
-import com.maddyhome.idea.vim.VimPlugin
 import com.maddyhome.idea.vim.action.motion.updown.MotionDownLess1FirstNonSpaceAction
 import com.maddyhome.idea.vim.api.ExecutionContext
+import com.maddyhome.idea.vim.api.VimCaret
 import com.maddyhome.idea.vim.api.VimEditor
+import com.maddyhome.idea.vim.api.injector
 import com.maddyhome.idea.vim.command.Argument
 import com.maddyhome.idea.vim.command.OperatorArguments
 import com.maddyhome.idea.vim.command.SelectionType
 import com.maddyhome.idea.vim.common.TextRange
-import com.maddyhome.idea.vim.group.MotionGroup
 import com.maddyhome.idea.vim.helper.EditorHelper
 import com.maddyhome.idea.vim.helper.fileSize
 import com.maddyhome.idea.vim.listener.VimYankListener
@@ -46,8 +44,8 @@ class YankGroup : YankGroupBase() {
 
   fun removeListener(listener: VimYankListener) = yankListeners.remove(listener)
 
-  private fun notifyListeners(editor: Editor, textRange: TextRange) = yankListeners.forEach {
-    it.yankPerformed(editor, textRange)
+  private fun notifyListeners(editor: VimEditor, textRange: TextRange) = yankListeners.forEach {
+    it.yankPerformed(editor.ij, textRange)
   }
 
   /**
@@ -67,32 +65,38 @@ class YankGroup : YankGroupBase() {
     operatorArguments: OperatorArguments
   ): Boolean {
     val motion = argument.motion
+    val type = if (motion.isLinewiseMotion()) SelectionType.LINE_WISE else SelectionType.CHARACTER_WISE
 
-    val caretModel = editor.ij.caretModel
-    if (caretModel.caretCount <= 0) return false
+    val nativeCaretCount = editor.nativeCarets().size
+    if (nativeCaretCount <= 0) return false
 
-    val ranges = ArrayList<Pair<Int, Int>>(caretModel.caretCount)
+    val carretToRange = HashMap<VimCaret, TextRange>(nativeCaretCount)
+    val ranges = ArrayList<Pair<Int, Int>>(nativeCaretCount)
 
     // This logic is from original vim
-    val startOffsets =
-      if (argument.motion.action is MotionDownLess1FirstNonSpaceAction) null else HashMap<Caret, Int>(caretModel.caretCount)
+    val startOffsets = if (argument.motion.action is MotionDownLess1FirstNonSpaceAction) null else HashMap<VimCaret, Int>(nativeCaretCount)
 
-    for (caret in caretModel.allCarets) {
-      val motionRange = MotionGroup.getMotionRange(editor.ij, caret, context.ij, argument, operatorArguments)
+    for (caret in editor.nativeCarets()) {
+      val motionRange = injector.motion.getMotionRange(editor, caret, context, argument, operatorArguments)
         ?: continue
 
       assert(motionRange.size() == 1)
       ranges.add(motionRange.startOffset to motionRange.endOffset)
       startOffsets?.put(caret, motionRange.normalize().startOffset)
+      carretToRange[caret] = TextRange(motionRange.startOffset, motionRange.endOffset)
     }
 
-    val type = if (motion.isLinewiseMotion()) SelectionType.LINE_WISE else SelectionType.CHARACTER_WISE
     val range = getTextRange(ranges, type) ?: return false
 
     if (range.size() == 0) return false
 
-    val selectionType = if (type == SelectionType.CHARACTER_WISE && range.isMultiple) SelectionType.BLOCK_WISE else type
-    return yankRange(editor.ij, range, selectionType, startOffsets)
+    return yankRange(
+      editor,
+      carretToRange,
+      range,
+      type,
+      startOffsets
+    )
   }
 
   /**
@@ -103,19 +107,21 @@ class YankGroup : YankGroupBase() {
    * @return true if able to yank the lines, false if not
    */
   override fun yankLine(editor: VimEditor, count: Int): Boolean {
-    val caretModel = editor.ij.caretModel
-    val ranges = ArrayList<Pair<Int, Int>>(caretModel.caretCount)
-    for (caret in caretModel.allCarets) {
-      val start = VimPlugin.getMotion().moveCaretToLineStart(editor, caret.vim)
-      val end = min(VimPlugin.getMotion().moveCaretToLineEndOffset(editor, caret.vim, count - 1, true) + 1, editor.fileSize().toInt())
+    val caretCount = editor.nativeCarets().size
+    val ranges = ArrayList<Pair<Int, Int>>(caretCount)
+    val caretToRange = HashMap<VimCaret, TextRange>(caretCount)
+    for (caret in editor.nativeCarets()) {
+      val start = injector.motion.moveCaretToLineStart(editor, caret)
+      val end = min(injector.motion.moveCaretToLineEndOffset(editor, caret, count - 1, true) + 1, editor.fileSize().toInt())
 
       if (end == -1) continue
 
       ranges.add(start to end)
+      caretToRange[caret] = TextRange(start, end)
     }
 
     val range = getTextRange(ranges, SelectionType.LINE_WISE) ?: return false
-    return yankRange(editor.ij, range, SelectionType.LINE_WISE, null)
+    return yankRange(editor, caretToRange, range, SelectionType.LINE_WISE, null)
   }
 
   /**
@@ -129,6 +135,7 @@ class YankGroup : YankGroupBase() {
   override fun yankRange(editor: VimEditor, range: TextRange?, type: SelectionType, moveCursor: Boolean): Boolean {
     range ?: return false
 
+    val caretToRange = HashMap<VimCaret, TextRange>()
     val selectionType = if (type == SelectionType.CHARACTER_WISE && range.isMultiple) SelectionType.BLOCK_WISE else type
 
     if (type == SelectionType.LINE_WISE) {
@@ -143,24 +150,25 @@ class YankGroup : YankGroupBase() {
       }
     }
 
-    val caretModel = editor.ij.caretModel
     val rangeStartOffsets = range.startOffsets
     val rangeEndOffsets = range.endOffsets
 
-    return if (moveCursor) {
-      val startOffsets = HashMap<Caret, Int>(caretModel.caretCount)
-      if (type == SelectionType.BLOCK_WISE) {
-        startOffsets[caretModel.primaryCaret] = range.normalize().startOffset
-      } else {
-        val carets = caretModel.allCarets
-        for (i in carets.indices) {
-          startOffsets[carets[i]] = TextRange(rangeStartOffsets[i], rangeEndOffsets[i]).normalize().startOffset
-        }
-      }
-
-      yankRange(editor.ij, range, selectionType, startOffsets)
+    val startOffsets = HashMap<VimCaret, Int>(editor.nativeCarets().size)
+    if (type == SelectionType.BLOCK_WISE) {
+      startOffsets[editor.primaryCaret()] = range.normalize().startOffset
+      caretToRange[editor.primaryCaret()] = range
     } else {
-      yankRange(editor.ij, range, selectionType, null)
+      for ((i, caret) in editor.nativeCarets().withIndex()) {
+        val textRange = TextRange(rangeStartOffsets[i], rangeEndOffsets[i])
+        startOffsets[caret] = textRange.normalize().startOffset
+        caretToRange[caret] = textRange
+      }
+    }
+
+    return if (moveCursor) {
+      yankRange(editor, caretToRange, range, selectionType, startOffsets)
+    } else {
+      yankRange(editor, caretToRange, range, selectionType, null)
     }
   }
 
@@ -192,15 +200,20 @@ class YankGroup : YankGroupBase() {
   }
 
   private fun yankRange(
-    editor: Editor,
+    editor: VimEditor,
+    caretToRange: Map<VimCaret, TextRange>,
     range: TextRange,
     type: SelectionType,
-    startOffsets: Map<Caret, Int>?,
+    startOffsets: Map<VimCaret, Int>?,
   ): Boolean {
-    startOffsets?.forEach { (caret, offset) -> MotionGroup.moveCaret(editor, caret, offset) }
+    startOffsets?.forEach { (caret, offset) -> injector.motion.moveCaret(editor, caret, offset) }
 
     notifyListeners(editor, range)
 
-    return VimPlugin.getRegister().storeText(editor.vim, range, type, false)
+    var result = true
+    for ((caret, range) in caretToRange) {
+      result = caret.registerStorage.storeText(editor, range, type, false) && result
+    }
+    return result
   }
 }

src/main/java/com/maddyhome/idea/vim/group/visual/IdeaSelectionControl.kt

@@ -23,9 +23,9 @@ import com.intellij.openapi.diagnostic.trace
 import com.intellij.openapi.editor.Editor
 import com.maddyhome.idea.vim.KeyHandler
 import com.maddyhome.idea.vim.VimPlugin
-import com.maddyhome.idea.vim.command.CommandState
+import com.maddyhome.idea.vim.command.VimStateMachine
 import com.maddyhome.idea.vim.helper.EditorDataContext
-import com.maddyhome.idea.vim.helper.commandState
+import com.maddyhome.idea.vim.helper.editorMode
 import com.maddyhome.idea.vim.helper.exitSelectMode
 import com.maddyhome.idea.vim.helper.exitVisualMode
 import com.maddyhome.idea.vim.helper.hasVisualSelection
@@ -35,8 +35,8 @@ import com.maddyhome.idea.vim.helper.inSelectMode
 import com.maddyhome.idea.vim.helper.inVisualMode
 import com.maddyhome.idea.vim.helper.isIdeaVimDisabledHere
 import com.maddyhome.idea.vim.helper.isTemplateActive
-import com.maddyhome.idea.vim.helper.mode
 import com.maddyhome.idea.vim.helper.popAllModes
+import com.maddyhome.idea.vim.helper.vimStateMachine
 import com.maddyhome.idea.vim.listener.VimListenerManager
 import com.maddyhome.idea.vim.newapi.IjVimEditor
 import com.maddyhome.idea.vim.newapi.vim
@@ -58,7 +58,7 @@ object IdeaSelectionControl {
     editor: Editor,
     selectionSource: VimListenerManager.SelectionSource = VimListenerManager.SelectionSource.OTHER,
   ) {
-    VimVisualTimer.singleTask(editor.mode) { initialMode ->
+    VimVisualTimer.singleTask(editor.editorMode) { initialMode ->
 
       if (editor.isIdeaVimDisabledHere) return@singleTask
 
@@ -80,13 +80,13 @@ object IdeaSelectionControl {
           return@singleTask
         }
 
-        logger.debug("Some carets have selection. State before adjustment: ${editor.vim.commandState.toSimpleString()}")
+        logger.debug("Some carets have selection. State before adjustment: ${editor.vim.vimStateMachine.toSimpleString()}")
 
         editor.popAllModes()
 
         activateMode(editor, chooseSelectionMode(editor, selectionSource, true))
       } else {
-        logger.debug("None of carets have selection. State before adjustment: ${editor.vim.commandState.toSimpleString()}")
+        logger.debug("None of carets have selection. State before adjustment: ${editor.vim.vimStateMachine.toSimpleString()}")
         if (editor.inVisualMode) editor.exitVisualMode()
         if (editor.inSelectMode) editor.exitSelectMode(false)
 
@@ -96,7 +96,7 @@ object IdeaSelectionControl {
       }
 
       KeyHandler.getInstance().reset(editor.vim)
-      logger.debug("${editor.mode} is enabled")
+      logger.debug("${editor.editorMode} is enabled")
     }
   }
 
@@ -110,68 +110,68 @@ object IdeaSelectionControl {
    * This method is created to improve user experience. It allows avoiding delay in some operations
    *   (because [controlNonVimSelectionChange] is not executed immediately)
    */
-  fun predictMode(editor: Editor, selectionSource: VimListenerManager.SelectionSource): CommandState.Mode {
+  fun predictMode(editor: Editor, selectionSource: VimListenerManager.SelectionSource): VimStateMachine.Mode {
     if (editor.selectionModel.hasSelection(true)) {
-      if (dontChangeMode(editor)) return editor.mode
+      if (dontChangeMode(editor)) return editor.editorMode
       return chooseSelectionMode(editor, selectionSource, false)
     } else {
       return chooseNonSelectionMode(editor)
     }
   }
 
-  private fun activateMode(editor: Editor, mode: CommandState.Mode) {
+  private fun activateMode(editor: Editor, mode: VimStateMachine.Mode) {
     when (mode) {
-      CommandState.Mode.VISUAL -> VimPlugin.getVisualMotion()
+      VimStateMachine.Mode.VISUAL -> VimPlugin.getVisualMotion()
         .enterVisualMode(editor.vim, VimPlugin.getVisualMotion().autodetectVisualSubmode(editor.vim))
-      CommandState.Mode.SELECT -> VimPlugin.getVisualMotion()
+      VimStateMachine.Mode.SELECT -> VimPlugin.getVisualMotion()
         .enterSelectMode(editor.vim, VimPlugin.getVisualMotion().autodetectVisualSubmode(editor.vim))
-      CommandState.Mode.INSERT -> VimPlugin.getChange().insertBeforeCursor(
+      VimStateMachine.Mode.INSERT -> VimPlugin.getChange().insertBeforeCursor(
         editor.vim,
         EditorDataContext.init(editor).vim
       )
-      CommandState.Mode.COMMAND -> Unit
+      VimStateMachine.Mode.COMMAND -> Unit
       else -> error("Unexpected mode: $mode")
     }
   }
 
   private fun dontChangeMode(editor: Editor): Boolean =
-    editor.isTemplateActive() && (IdeaRefactorModeHelper.keepMode() || editor.mode.hasVisualSelection)
+    editor.isTemplateActive() && (IdeaRefactorModeHelper.keepMode() || editor.editorMode.hasVisualSelection)
 
-  private fun chooseNonSelectionMode(editor: Editor): CommandState.Mode {
+  private fun chooseNonSelectionMode(editor: Editor): VimStateMachine.Mode {
     val templateActive = editor.isTemplateActive()
     if (templateActive && editor.inNormalMode || editor.inInsertMode) {
-      return CommandState.Mode.INSERT
+      return VimStateMachine.Mode.INSERT
     }
-    return CommandState.Mode.COMMAND
+    return VimStateMachine.Mode.COMMAND
   }
 
   private fun chooseSelectionMode(
     editor: Editor,
     selectionSource: VimListenerManager.SelectionSource,
     logReason: Boolean,
-  ): CommandState.Mode {
+  ): VimStateMachine.Mode {
     val selectmode = (VimPlugin.getOptionService().getOptionValue(OptionScope.LOCAL(IjVimEditor(editor)), OptionConstants.selectmodeName) as VimString).value
     return when {
       editor.isOneLineMode -> {
         if (logReason) logger.debug("Enter select mode. Reason: one line mode")
-        CommandState.Mode.SELECT
+        VimStateMachine.Mode.SELECT
       }
       selectionSource == VimListenerManager.SelectionSource.MOUSE && OptionConstants.selectmode_mouse in selectmode -> {
         if (logReason) logger.debug("Enter select mode. Selection source is mouse and selectMode option has mouse")
-        CommandState.Mode.SELECT
+        VimStateMachine.Mode.SELECT
       }
       editor.isTemplateActive() && IdeaRefactorModeHelper.selectMode() -> {
         if (logReason) logger.debug("Enter select mode. Template is active and selectMode has template")
-        CommandState.Mode.SELECT
+        VimStateMachine.Mode.SELECT
       }
       selectionSource == VimListenerManager.SelectionSource.OTHER &&
         OptionConstants.selectmode_ideaselection in (VimPlugin.getOptionService().getOptionValue(OptionScope.GLOBAL, OptionConstants.selectmodeName) as VimString).value -> {
         if (logReason) logger.debug("Enter select mode. Selection source is OTHER and selectMode has refactoring")
-        CommandState.Mode.SELECT
+        VimStateMachine.Mode.SELECT
       }
       else -> {
         if (logReason) logger.debug("Enter visual mode")
-        CommandState.Mode.VISUAL
+        VimStateMachine.Mode.VISUAL
       }
     }
   }

src/main/java/com/maddyhome/idea/vim/group/visual/VimVisualTimer.kt

@@ -19,7 +19,7 @@
 package com.maddyhome.idea.vim.group.visual
 
 import com.maddyhome.idea.vim.VimPlugin
-import com.maddyhome.idea.vim.command.CommandState
+import com.maddyhome.idea.vim.command.VimStateMachine
 import com.maddyhome.idea.vim.group.visual.VimVisualTimer.mode
 import com.maddyhome.idea.vim.group.visual.VimVisualTimer.singleTask
 import com.maddyhome.idea.vim.options.OptionScope
@@ -66,9 +66,9 @@ import javax.swing.Timer
 object VimVisualTimer {
 
   var swingTimer: Timer? = null
-  var mode: CommandState.Mode? = null
+  var mode: VimStateMachine.Mode? = null
 
-  inline fun singleTask(currentMode: CommandState.Mode, crossinline task: (initialMode: CommandState.Mode?) -> Unit) {
+  inline fun singleTask(currentMode: VimStateMachine.Mode, crossinline task: (initialMode: VimStateMachine.Mode?) -> Unit) {
     swingTimer?.stop()
 
     if (mode == null) mode = currentMode
@@ -92,7 +92,7 @@ object VimVisualTimer {
     }
   }
 
-  inline fun timerAction(task: (initialMode: CommandState.Mode?) -> Unit) {
+  inline fun timerAction(task: (initialMode: VimStateMachine.Mode?) -> Unit) {
     task(mode)
     swingTimer = null
     mode = null

src/main/java/com/maddyhome/idea/vim/group/visual/VisualGroup.kt

@@ -23,13 +23,13 @@ import com.intellij.openapi.editor.Editor
 import com.intellij.openapi.editor.VisualPosition
 import com.maddyhome.idea.vim.VimPlugin
 import com.maddyhome.idea.vim.api.VimMotionGroupBase
-import com.maddyhome.idea.vim.command.CommandState
+import com.maddyhome.idea.vim.command.VimStateMachine
 import com.maddyhome.idea.vim.helper.EditorHelper
+import com.maddyhome.idea.vim.helper.editorMode
 import com.maddyhome.idea.vim.helper.inBlockSubMode
 import com.maddyhome.idea.vim.helper.inSelectMode
 import com.maddyhome.idea.vim.helper.inVisualMode
 import com.maddyhome.idea.vim.helper.isEndAllowed
-import com.maddyhome.idea.vim.helper.mode
 import com.maddyhome.idea.vim.helper.moveToInlayAwareOffset
 import com.maddyhome.idea.vim.helper.subMode
 import com.maddyhome.idea.vim.helper.updateCaretsVisualAttributes
@@ -108,7 +108,7 @@ val Caret.vimLeadSelectionOffset: Int
         }
       }
 
-      return if (editor.subMode == CommandState.SubMode.VISUAL_LINE) {
+      return if (editor.subMode == VimStateMachine.SubMode.VISUAL_LINE) {
         val selectionStartLine = editor.offsetToLogicalPosition(selectionStart).line
         val caretLine = editor.offsetToLogicalPosition(this.offset).line
         if (caretLine == selectionStartLine) {
@@ -132,8 +132,8 @@ val Caret.vimLeadSelectionOffset: Int
     return caretOffset
   }
 
-fun moveCaretOneCharLeftFromSelectionEnd(editor: Editor, predictedMode: CommandState.Mode) {
-  if (predictedMode != CommandState.Mode.VISUAL) {
+fun moveCaretOneCharLeftFromSelectionEnd(editor: Editor, predictedMode: VimStateMachine.Mode) {
+  if (predictedMode != VimStateMachine.Mode.VISUAL) {
     if (!predictedMode.isEndAllowed) {
       editor.caretModel.allCarets.forEach { caret ->
         val lineEnd = EditorHelper.getLineEndForOffset(editor, caret.offset)
@@ -161,18 +161,18 @@ private fun setVisualSelection(selectionStart: Int, selectionEnd: Int, caret: Ca
   val (start, end) = if (selectionStart > selectionEnd) selectionEnd to selectionStart else selectionStart to selectionEnd
   val editor = caret.editor
   val subMode = editor.subMode
-  val mode = editor.mode
+  val mode = editor.editorMode
   val vimEditor = IjVimEditor(editor)
   when (subMode) {
-    CommandState.SubMode.VISUAL_CHARACTER -> {
+    VimStateMachine.SubMode.VISUAL_CHARACTER -> {
       val (nativeStart, nativeEnd) = charToNativeSelection(vimEditor, start, end, mode)
       caret.vimSetSystemSelectionSilently(nativeStart, nativeEnd)
     }
-    CommandState.SubMode.VISUAL_LINE -> {
+    VimStateMachine.SubMode.VISUAL_LINE -> {
       val (nativeStart, nativeEnd) = lineToNativeSelection(vimEditor, start, end)
       caret.vimSetSystemSelectionSilently(nativeStart, nativeEnd)
     }
-    CommandState.SubMode.VISUAL_BLOCK -> {
+    VimStateMachine.SubMode.VISUAL_BLOCK -> {
       editor.caretModel.removeSecondaryCarets()
 
       // Set system selection
@@ -200,7 +200,7 @@ private fun setVisualSelection(selectionStart: Int, selectionEnd: Int, caret: Ca
           // Put right caret position for tab character
           aCaret.moveToVisualPosition(visualPosition)
         }
-        if (mode != CommandState.Mode.SELECT &&
+        if (mode != VimStateMachine.Mode.SELECT &&
           !EditorHelper.isLineEmpty(editor, line, false) &&
           aCaret.offset == aCaret.selectionEnd &&
           aCaret.selectionEnd - 1 >= lineStartOffset &&

src/main/java/com/maddyhome/idea/vim/group/visual/VisualMotionGroup.kt

@@ -19,22 +19,33 @@
 package com.maddyhome.idea.vim.group.visual
 
 import com.intellij.find.FindManager
+import com.intellij.openapi.editor.Editor
 import com.maddyhome.idea.vim.api.VimEditor
 import com.maddyhome.idea.vim.api.VimVisualMotionGroupBase
 import com.maddyhome.idea.vim.command.CommandState
+import com.maddyhome.idea.vim.command.VimStateMachine
+import com.maddyhome.idea.vim.command.engine
 import com.maddyhome.idea.vim.newapi.ij
+import com.maddyhome.idea.vim.newapi.vim
 
 /**
  * @author Alex Plate
  */
 class VisualMotionGroup : VimVisualMotionGroupBase() {
-  override fun autodetectVisualSubmode(editor: VimEditor): CommandState.SubMode {
+  override fun autodetectVisualSubmode(editor: VimEditor): VimStateMachine.SubMode {
     // IJ specific. See https://youtrack.jetbrains.com/issue/VIM-1924.
     val project = editor.ij.project
     if (project != null && FindManager.getInstance(project).selectNextOccurrenceWasPerformed()) {
-      return CommandState.SubMode.VISUAL_CHARACTER
+      return VimStateMachine.SubMode.VISUAL_CHARACTER
     }
 
     return super.autodetectVisualSubmode(editor)
   }
+
+  /**
+   * COMPATIBILITY-LAYER: Added a method
+   */
+  fun enterVisualMode(editor: Editor, subMode: CommandState.SubMode? = null): Boolean {
+    return this.enterVisualMode(editor.vim, subMode?.engine)
+  }
 }

src/main/java/com/maddyhome/idea/vim/handler/ActionBeanClass.kt

@@ -21,7 +21,7 @@ package com.maddyhome.idea.vim.handler
 import com.intellij.serviceContainer.BaseKeyedLazyInstance
 import com.intellij.util.SmartList
 import com.intellij.util.xmlb.annotations.Attribute
-import com.maddyhome.idea.vim.common.MappingMode
+import com.maddyhome.idea.vim.command.MappingMode
 import javax.swing.KeyStroke
 
 /**

src/main/java/com/maddyhome/idea/vim/helper/CaretVisualAttributesHelper.kt

@@ -23,7 +23,7 @@ import com.intellij.openapi.editor.CaretVisualAttributes
 import com.intellij.openapi.editor.Editor
 import com.intellij.openapi.editor.ex.EditorEx
 import com.intellij.openapi.editor.ex.EditorSettingsExternalizable
-import com.maddyhome.idea.vim.command.CommandState
+import com.maddyhome.idea.vim.command.VimStateMachine
 import com.maddyhome.idea.vim.newapi.vim
 import com.maddyhome.idea.vim.options.OptionChangeListener
 import com.maddyhome.idea.vim.options.helpers.GuiCursorMode
@@ -75,7 +75,7 @@ object GuicursorChangeListener : OptionChangeListener<VimDataType> {
 }
 
 private fun Editor.guicursorMode(): GuiCursorMode {
-  if (this.vim.commandState.isReplaceCharacter) {
+  if (this.vim.vimStateMachine.isReplaceCharacter) {
     // Can be true for NORMAL and VISUAL
     return GuiCursorMode.REPLACE
   }
@@ -84,18 +84,18 @@ private fun Editor.guicursorMode(): GuiCursorMode {
   // makes much more use of SELECT than Vim does (e.g. it's the default for idearefactormode) so it makes sense for us
   // to more visually distinguish VISUAL and SELECT. So we use INSERT; a selection and the insert caret is intuitively
   // the same as SELECT
-  return when (mode) {
-    CommandState.Mode.COMMAND -> GuiCursorMode.NORMAL
-    CommandState.Mode.VISUAL -> GuiCursorMode.VISUAL // TODO: VISUAL_EXCLUSIVE
-    CommandState.Mode.SELECT -> GuiCursorMode.INSERT
-    CommandState.Mode.INSERT -> GuiCursorMode.INSERT
-    CommandState.Mode.OP_PENDING -> GuiCursorMode.OP_PENDING
-    CommandState.Mode.REPLACE -> GuiCursorMode.REPLACE
+  return when (editorMode) {
+    VimStateMachine.Mode.COMMAND -> GuiCursorMode.NORMAL
+    VimStateMachine.Mode.VISUAL -> GuiCursorMode.VISUAL // TODO: VISUAL_EXCLUSIVE
+    VimStateMachine.Mode.SELECT -> GuiCursorMode.INSERT
+    VimStateMachine.Mode.INSERT -> GuiCursorMode.INSERT
+    VimStateMachine.Mode.OP_PENDING -> GuiCursorMode.OP_PENDING
+    VimStateMachine.Mode.REPLACE -> GuiCursorMode.REPLACE
     // This doesn't handle ci and cr, but we don't care - our CMD_LINE will never call this
-    CommandState.Mode.CMD_LINE -> GuiCursorMode.CMD_LINE
-    CommandState.Mode.INSERT_NORMAL -> GuiCursorMode.NORMAL
-    CommandState.Mode.INSERT_VISUAL -> GuiCursorMode.VISUAL
-    CommandState.Mode.INSERT_SELECT -> GuiCursorMode.INSERT
+    VimStateMachine.Mode.CMD_LINE -> GuiCursorMode.CMD_LINE
+    VimStateMachine.Mode.INSERT_NORMAL -> GuiCursorMode.NORMAL
+    VimStateMachine.Mode.INSERT_VISUAL -> GuiCursorMode.VISUAL
+    VimStateMachine.Mode.INSERT_SELECT -> GuiCursorMode.INSERT
   }
 }
 

src/main/java/com/maddyhome/idea/vim/helper/CommandLineHelper.kt

@@ -34,7 +34,7 @@ class CommandLineHelper : VimCommandLineHelper {
 
   override fun inputString(vimEditor: VimEditor, prompt: String, finishOn: Char?): String? {
     val editor = vimEditor.ij
-    if (vimEditor.commandState.isDotRepeatInProgress) {
+    if (vimEditor.vimStateMachine.isDotRepeatInProgress) {
       val input = Extension.consumeString()
       return input ?: error("Not enough strings saved: ${Extension.lastExtensionHandler}")
     }

src/main/java/com/maddyhome/idea/vim/helper/CommandStateExtensions.kt

@@ -23,89 +23,104 @@ package com.maddyhome.idea.vim.helper
 import com.intellij.openapi.editor.Editor
 import com.maddyhome.idea.vim.api.VimEditor
 import com.maddyhome.idea.vim.command.CommandState
+import com.maddyhome.idea.vim.command.VimStateMachine
+import com.maddyhome.idea.vim.command.engine
+import com.maddyhome.idea.vim.command.ij
 import com.maddyhome.idea.vim.newapi.vim
 
 val Editor.isEndAllowed: Boolean
-  get() = when (this.mode) {
-    CommandState.Mode.INSERT, CommandState.Mode.VISUAL, CommandState.Mode.SELECT, CommandState.Mode.INSERT_VISUAL, CommandState.Mode.INSERT_SELECT -> true
-    CommandState.Mode.COMMAND, CommandState.Mode.CMD_LINE, CommandState.Mode.REPLACE, CommandState.Mode.OP_PENDING, CommandState.Mode.INSERT_NORMAL -> {
+  get() = when (this.editorMode) {
+    VimStateMachine.Mode.INSERT, VimStateMachine.Mode.VISUAL, VimStateMachine.Mode.SELECT, VimStateMachine.Mode.INSERT_VISUAL, VimStateMachine.Mode.INSERT_SELECT -> true
+    VimStateMachine.Mode.COMMAND, VimStateMachine.Mode.CMD_LINE, VimStateMachine.Mode.REPLACE, VimStateMachine.Mode.OP_PENDING, VimStateMachine.Mode.INSERT_NORMAL -> {
       // One day we'll use a proper insert_normal mode
-      if (this.mode.inSingleMode) true else usesVirtualSpace
+      if (this.editorMode.inSingleMode) true else usesVirtualSpace
     }
   }
 
-val CommandState.Mode.isEndAllowedIgnoringOnemore: Boolean
+val VimStateMachine.Mode.isEndAllowedIgnoringOnemore: Boolean
   get() = when (this) {
-    CommandState.Mode.INSERT, CommandState.Mode.VISUAL, CommandState.Mode.SELECT -> true
-    CommandState.Mode.COMMAND, CommandState.Mode.CMD_LINE, CommandState.Mode.REPLACE, CommandState.Mode.OP_PENDING -> false
-    CommandState.Mode.INSERT_NORMAL -> false
-    CommandState.Mode.INSERT_VISUAL -> true
-    CommandState.Mode.INSERT_SELECT -> true
+    VimStateMachine.Mode.INSERT, VimStateMachine.Mode.VISUAL, VimStateMachine.Mode.SELECT -> true
+    VimStateMachine.Mode.COMMAND, VimStateMachine.Mode.CMD_LINE, VimStateMachine.Mode.REPLACE, VimStateMachine.Mode.OP_PENDING -> false
+    VimStateMachine.Mode.INSERT_NORMAL -> false
+    VimStateMachine.Mode.INSERT_VISUAL -> true
+    VimStateMachine.Mode.INSERT_SELECT -> true
   }
 
-val CommandState.Mode.hasVisualSelection
+val VimStateMachine.Mode.hasVisualSelection
   get() = when (this) {
-    CommandState.Mode.VISUAL, CommandState.Mode.SELECT -> true
-    CommandState.Mode.REPLACE, CommandState.Mode.CMD_LINE, CommandState.Mode.COMMAND, CommandState.Mode.INSERT, CommandState.Mode.OP_PENDING -> false
-    CommandState.Mode.INSERT_NORMAL -> false
-    CommandState.Mode.INSERT_VISUAL -> true
-    CommandState.Mode.INSERT_SELECT -> true
+    VimStateMachine.Mode.VISUAL, VimStateMachine.Mode.SELECT -> true
+    VimStateMachine.Mode.REPLACE, VimStateMachine.Mode.CMD_LINE, VimStateMachine.Mode.COMMAND, VimStateMachine.Mode.INSERT, VimStateMachine.Mode.OP_PENDING -> false
+    VimStateMachine.Mode.INSERT_NORMAL -> false
+    VimStateMachine.Mode.INSERT_VISUAL -> true
+    VimStateMachine.Mode.INSERT_SELECT -> true
   }
 
+val Editor.editorMode
+  get() = this.vim.vimStateMachine.mode
+
+/**
+ * COMPATIBILITY-LAYER: New method
+ */
 val Editor.mode
-  get() = this.vim.commandState.mode
+  get() = this.vim.vimStateMachine.mode.ij
+
+/**
+ * COMPATIBILITY-LAYER: New method
+ */
+val CommandState.Mode.isEndAllowed: Boolean
+  get() = this.engine.isEndAllowed
 
 var Editor.subMode
-  get() = this.vim.commandState.subMode
+  get() = this.vim.vimStateMachine.subMode
   set(value) {
-    this.vim.commandState.subMode = value
+    this.vim.vimStateMachine.subMode = value
   }
 
 @get:JvmName("inNormalMode")
 val Editor.inNormalMode
-  get() = this.mode.inNormalMode
+  get() = this.editorMode.inNormalMode
 
 @get:JvmName("inNormalMode")
-val CommandState.Mode.inNormalMode
-  get() = this == CommandState.Mode.COMMAND || this == CommandState.Mode.INSERT_NORMAL
+val VimStateMachine.Mode.inNormalMode
+  get() = this == VimStateMachine.Mode.COMMAND || this == VimStateMachine.Mode.INSERT_NORMAL
 
 @get:JvmName("inInsertMode")
 val Editor.inInsertMode
-  get() = this.mode == CommandState.Mode.INSERT || this.mode == CommandState.Mode.REPLACE
+  get() = this.editorMode == VimStateMachine.Mode.INSERT || this.editorMode == VimStateMachine.Mode.REPLACE
 
 @get:JvmName("inRepeatMode")
 val Editor.inRepeatMode
-  get() = this.vim.commandState.isDotRepeatInProgress
+  get() = this.vim.vimStateMachine.isDotRepeatInProgress
 
 @get:JvmName("inVisualMode")
 val Editor.inVisualMode
-  get() = this.mode.inVisualMode
+  get() = this.editorMode.inVisualMode
 
 @get:JvmName("inSelectMode")
 val Editor.inSelectMode
-  get() = this.mode == CommandState.Mode.SELECT || this.mode == CommandState.Mode.INSERT_SELECT
+  get() = this.editorMode == VimStateMachine.Mode.SELECT || this.editorMode == VimStateMachine.Mode.INSERT_SELECT
 
 val VimEditor.inSelectMode
-  get() = this.mode == CommandState.Mode.SELECT || this.mode == CommandState.Mode.INSERT_SELECT
+  get() = this.mode == VimStateMachine.Mode.SELECT || this.mode == VimStateMachine.Mode.INSERT_SELECT
 
 @get:JvmName("inBlockSubMode")
 val Editor.inBlockSubMode
-  get() = this.subMode == CommandState.SubMode.VISUAL_BLOCK
+  get() = this.subMode == VimStateMachine.SubMode.VISUAL_BLOCK
 
 @get:JvmName("inSingleCommandMode")
 val Editor.inSingleCommandMode: Boolean
-  get() = this.mode.inSingleMode
+  get() = this.editorMode.inSingleMode
 
 @get:JvmName("inSingleMode")
-val CommandState.Mode.inSingleMode: Boolean
+val VimStateMachine.Mode.inSingleMode: Boolean
   get() = when (this) {
-    CommandState.Mode.INSERT_NORMAL, CommandState.Mode.INSERT_SELECT, CommandState.Mode.INSERT_VISUAL -> true
+    VimStateMachine.Mode.INSERT_NORMAL, VimStateMachine.Mode.INSERT_SELECT, VimStateMachine.Mode.INSERT_VISUAL -> true
     else -> false
   }
 
 @get:JvmName("inSingleNormalMode")
-val CommandState.Mode.inSingleNormalMode: Boolean
+val VimStateMachine.Mode.inSingleNormalMode: Boolean
   get() = when (this) {
-    CommandState.Mode.INSERT_NORMAL -> true
+    VimStateMachine.Mode.INSERT_NORMAL -> true
     else -> false
   }

src/main/java/com/maddyhome/idea/vim/helper/EditorHelper.java

@@ -152,6 +152,13 @@ public class EditorHelper {
            : VimInjectorKt.getInjector().getEngineEditorHelper().logicalLineToVisualLine(editor, count - 1) + 1;
   }
 
+  /**
+   * COMPATIBILITY-LAYER: Created a function
+   */
+  public static int getVisualLineCount(final @NotNull Editor editor) {
+    return getVisualLineCount(new IjVimEditor(editor));
+  }
+
   /**
    * Gets the number of actual lines in the file
    *
@@ -853,7 +860,7 @@ public class EditorHelper {
     if (inlayAwareOffset == vimLastColumn) return vimLastColumn;
 
     Editor editor = caret.getEditor();
-    boolean isEndAllowed = CommandStateHelper.isEndAllowedIgnoringOnemore(CommandStateHelper.getMode(editor));
+    boolean isEndAllowed = CommandStateHelper.isEndAllowedIgnoringOnemore(CommandStateHelper.getEditorMode(editor));
     final LogicalPosition logicalPosition = caret.getLogicalPosition();
     int lastColumn = EditorHelper.lastColumnForLine(editor, logicalPosition.line, isEndAllowed);
 

src/main/java/com/maddyhome/idea/vim/helper/IjActionExecutor.kt

@@ -21,18 +21,24 @@ package com.maddyhome.idea.vim.helper
 import com.intellij.openapi.actionSystem.ActionGroup
 import com.intellij.openapi.actionSystem.ActionManager
 import com.intellij.openapi.actionSystem.ActionPlaces
+import com.intellij.openapi.actionSystem.AnAction
 import com.intellij.openapi.actionSystem.AnActionEvent
+import com.intellij.openapi.actionSystem.AnActionResult
 import com.intellij.openapi.actionSystem.DataContext
 import com.intellij.openapi.actionSystem.IdeActions
+import com.intellij.openapi.actionSystem.PlatformCoreDataKeys
 import com.intellij.openapi.actionSystem.PlatformDataKeys
 import com.intellij.openapi.actionSystem.Presentation
+import com.intellij.openapi.actionSystem.ex.ActionManagerEx
 import com.intellij.openapi.actionSystem.ex.ActionUtil
 import com.intellij.openapi.command.CommandProcessor
 import com.intellij.openapi.command.UndoConfirmationPolicy
 import com.intellij.openapi.components.Service
 import com.intellij.openapi.editor.actionSystem.DocCommandGroupId
+import com.intellij.openapi.project.IndexNotReadyException
 import com.intellij.openapi.ui.popup.JBPopupFactory
 import com.intellij.openapi.util.NlsContexts
+import com.intellij.util.SlowOperations
 import com.maddyhome.idea.vim.RegisterActions
 import com.maddyhome.idea.vim.api.ExecutionContext
 import com.maddyhome.idea.vim.api.NativeAction
@@ -95,11 +101,48 @@ class IjActionExecutor : VimActionExecutor {
       popup.showInFocusCenter()
       return true
     } else {
-      ActionUtil.performActionDumbAwareWithCallbacks(ijAction, event)
+      performDumbAwareWithCallbacks(ijAction, event) { ijAction.actionPerformed(event) }
       return true
     }
   }
 
+  // This is taken directly from ActionUtil.performActionDumbAwareWithCallbacks
+  // But with one check removed. With this check some actions (like `:w` doesn't work)
+  // https://youtrack.jetbrains.com/issue/VIM-2691/File-is-not-saved-on-w
+  private fun performDumbAwareWithCallbacks(
+    action: AnAction,
+    event: AnActionEvent,
+    performRunnable: Runnable,
+  ) {
+    val project = event.project
+    var indexError: IndexNotReadyException? = null
+    val manager = ActionManagerEx.getInstanceEx()
+    manager.fireBeforeActionPerformed(action, event)
+    val component = event.getData(PlatformCoreDataKeys.CONTEXT_COMPONENT)
+    var result: AnActionResult? = null
+    try {
+      SlowOperations.allowSlowOperations(SlowOperations.ACTION_PERFORM).use { ignore ->
+        performRunnable.run()
+        result = AnActionResult.PERFORMED
+      }
+    } catch (ex: IndexNotReadyException) {
+      indexError = ex
+      result = AnActionResult.failed(ex)
+    } catch (ex: RuntimeException) {
+      result = AnActionResult.failed(ex)
+      throw ex
+    } catch (ex: Error) {
+      result = AnActionResult.failed(ex)
+      throw ex
+    } finally {
+      if (result == null) result = AnActionResult.failed(Throwable())
+      manager.fireAfterActionPerformed(action, event, result!!)
+    }
+    if (indexError != null) {
+      ActionUtil.showDumbModeWarning(project, event)
+    }
+  }
+
   private fun canBePerformed(event: AnActionEvent, action: ActionGroup, context: DataContext): Boolean {
     val presentation = event.presentation
     return try {
@@ -155,6 +198,10 @@ class IjActionExecutor : VimActionExecutor {
     return RegisterActions.findAction(id)
   }
 
+  override fun findVimActionOrDie(id: String): EditorActionHandlerBase {
+    return RegisterActions.findActionOrDie(id)
+  }
+
   override fun getAction(actionId: String): NativeAction? {
     return ActionManager.getInstance().getAction(actionId)?.let { IjNativeAction(it) }
   }

src/main/java/com/maddyhome/idea/vim/helper/IjEditorHelper.kt

@@ -143,4 +143,8 @@ class IjEditorHelper : EngineEditorHelper {
   override fun getLeadingWhitespace(editor: VimEditor, line: Int): String {
     return EditorHelper.getLeadingWhitespace(editor.ij, line)
   }
+
+  override fun anyNonWhitespace(editor: VimEditor, offset: Int, dir: Int): Boolean {
+    return SearchHelper.anyNonWhitespace(editor.ij, offset, dir)
+  }
 }

src/main/java/com/maddyhome/idea/vim/helper/ModeExtensions.kt

@@ -25,9 +25,9 @@ import com.intellij.openapi.editor.Caret
 import com.intellij.openapi.editor.Editor
 import com.maddyhome.idea.vim.VimPlugin
 import com.maddyhome.idea.vim.api.VimEditor
-import com.maddyhome.idea.vim.command.CommandState
 import com.maddyhome.idea.vim.command.OperatorArguments
 import com.maddyhome.idea.vim.command.SelectionType
+import com.maddyhome.idea.vim.command.VimStateMachine
 import com.maddyhome.idea.vim.common.TextRange
 import com.maddyhome.idea.vim.listener.SelectionVimListenerSuppressor
 import com.maddyhome.idea.vim.newapi.IjExecutionContext
@@ -39,8 +39,8 @@ import com.maddyhome.idea.vim.newapi.vim
  * Pop all modes, but leave editor state. E.g. editor selection is not removed.
  */
 fun Editor.popAllModes() {
-  val commandState = this.vim.commandState
-  while (commandState.mode != CommandState.Mode.COMMAND) {
+  val commandState = this.vim.vimStateMachine
+  while (commandState.mode != VimStateMachine.Mode.COMMAND) {
     commandState.popModes()
   }
 }
@@ -63,7 +63,7 @@ fun Editor.exitVisualMode() {
     VimPlugin.getMark().setVisualSelectionMarks(this.vim, TextRange(vimSelectionStart, primaryCaret.offset))
     this.caretModel.allCarets.forEach { it.vimSelectionStartClear() }
 
-    this.vim.commandState.popModes()
+    this.vim.vimStateMachine.popModes()
   }
 }
 
@@ -71,7 +71,7 @@ fun Editor.exitVisualMode() {
 fun Editor.exitSelectMode(adjustCaretPosition: Boolean) {
   if (!this.inSelectMode) return
 
-  this.vim.commandState.popModes()
+  this.vim.vimStateMachine.popModes()
   SelectionVimListenerSuppressor.lock().use {
     this.caretModel.allCarets.forEach {
       it.removeSelection()
@@ -91,7 +91,7 @@ fun Editor.exitSelectMode(adjustCaretPosition: Boolean) {
 fun VimEditor.exitSelectMode(adjustCaretPosition: Boolean) {
   if (!this.inSelectMode) return
 
-  this.commandState.popModes()
+  this.vimStateMachine.popModes()
   SelectionVimListenerSuppressor.lock().use {
     this.carets().forEach { vimCaret ->
       val caret = (vimCaret as IjVimCaret).caret

src/main/java/com/maddyhome/idea/vim/helper/SearchHelper.java

@@ -31,7 +31,7 @@ import com.intellij.psi.PsiElement;
 import com.intellij.psi.PsiFile;
 import com.intellij.psi.util.PsiTreeUtil;
 import com.maddyhome.idea.vim.VimPlugin;
-import com.maddyhome.idea.vim.command.CommandState;
+import com.maddyhome.idea.vim.command.VimStateMachine;
 import com.maddyhome.idea.vim.common.CharacterPosition;
 import com.maddyhome.idea.vim.common.Direction;
 import com.maddyhome.idea.vim.common.TextRange;
@@ -893,8 +893,8 @@ public class SearchHelper {
         selectionEndWithoutNewline++;
       }
 
-      final CommandState.Mode mode = CommandState.getInstance(new IjVimEditor(editor)).getMode();
-      if (mode == CommandState.Mode.VISUAL) {
+      final VimStateMachine.Mode mode = VimStateMachine.getInstance(new IjVimEditor(editor)).getMode();
+      if (mode == VimStateMachine.Mode.VISUAL) {
         if (closingTagTextRange.getStartOffset() == selectionEndWithoutNewline &&
           openingTag.getEndOffset() == selectionStart) {
           // Special case: if the inner tag is already selected we should like isOuter is active

src/main/java/com/maddyhome/idea/vim/helper/StringHelper.kt

@@ -0,0 +1,44 @@
+/*
+ * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
+ * Copyright (C) 2003-2022 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.helper
+
+import com.maddyhome.idea.vim.api.injector
+import java.util.*
+import java.util.stream.Collectors
+import javax.swing.KeyStroke
+
+/**
+ * COMPATIBILITY-LAYER: Created a helper class
+ */
+object StringHelper {
+  @JvmStatic
+  fun parseKeys(string: String): List<KeyStroke> {
+    return injector.parser.parseKeys(string)
+  }
+
+  @JvmStatic
+  fun parseKeys(vararg string: String): List<KeyStroke> {
+    return Arrays.stream(string).flatMap { o: String -> injector.parser.parseKeys(o).stream() }
+      .collect(Collectors.toList())
+  }
+
+  @JvmStatic
+  fun isCloseKeyStroke(stroke: KeyStroke): Boolean {
+    return stroke.isCloseKeyStroke()
+  }
+}

src/main/java/com/maddyhome/idea/vim/helper/UndoRedoHelper.kt

@@ -99,5 +99,6 @@ class UndoRedoHelper : UndoRedoBase() {
     while (check() && !changeListener.hasChanged) {
       action.run()
     }
+    vimDocument.removeChangeListener(changeListener)
   }
 }

src/main/java/com/maddyhome/idea/vim/helper/UserDataManager.kt

@@ -27,8 +27,9 @@ import com.intellij.openapi.editor.RangeMarker
 import com.intellij.openapi.editor.markup.RangeHighlighter
 import com.intellij.openapi.util.Key
 import com.intellij.openapi.util.UserDataHolder
-import com.maddyhome.idea.vim.command.CommandState
+import com.maddyhome.idea.vim.api.CaretRegisterStorageBase
 import com.maddyhome.idea.vim.command.SelectionType
+import com.maddyhome.idea.vim.command.VimStateMachine
 import com.maddyhome.idea.vim.ex.ExOutputModel
 import com.maddyhome.idea.vim.group.visual.VisualChange
 import com.maddyhome.idea.vim.group.visual.vimLeadSelectionOffset
@@ -73,11 +74,12 @@ var Caret.vimInsertStart: RangeMarker by userDataOr {
     this.offset
   )
 }
+var Caret.registerStorage: CaretRegisterStorageBase? by userDataCaretToEditor()
 
 // ------------------ Editor
 fun unInitializeEditor(editor: Editor) {
   editor.vimLastSelectionType = null
-  editor.vimCommandState = null
+  editor.vimStateMachine = null
   editor.vimMorePanel = null
   editor.vimExOutput = null
   editor.vimLastHighlighters = null
@@ -91,7 +93,7 @@ var Editor.vimIncsearchCurrentMatchOffset: Int? by userData()
  * @see :help visualmode()
  */
 var Editor.vimLastSelectionType: SelectionType? by userData()
-var Editor.vimCommandState: CommandState? by userData()
+var Editor.vimStateMachine: VimStateMachine? by userData()
 var Editor.vimEditorGroup: Boolean by userDataOr { false }
 var Editor.vimLineNumbersInitialState: Boolean by userDataOr { false }
 var Editor.vimHasRelativeLineNumbersInstalled: Boolean by userDataOr { false }
@@ -103,7 +105,7 @@ var Editor.vimTestInputModel: TestInputModel? by userData()
  * Checks whether a keeping visual mode visual operator action is performed on editor.
  */
 var Editor.vimKeepingVisualOperatorAction: Boolean by userDataOr { false }
-var Editor.vimChangeActionSwitchMode: CommandState.Mode? by userData()
+var Editor.vimChangeActionSwitchMode: VimStateMachine.Mode? by userData()
 
 /**
  * Function for delegated properties.

src/main/java/com/maddyhome/idea/vim/key/NodesHelper.kt

@@ -19,8 +19,6 @@
 package com.maddyhome.idea.vim.key
 
 import com.maddyhome.idea.vim.api.injector
-import com.maddyhome.idea.vim.common.Node
-import com.maddyhome.idea.vim.common.addLeafs
 
 fun <T> Node<T>.addLeafs(keys: String, actionHolder: T) {
   addLeafs(injector.parser.parseKeys(keys), actionHolder)

src/main/java/com/maddyhome/idea/vim/listener/IdeaSpecifics.kt

@@ -32,16 +32,17 @@ import com.intellij.openapi.actionSystem.AnActionEvent
 import com.intellij.openapi.actionSystem.CommonDataKeys
 import com.intellij.openapi.actionSystem.DataContext
 import com.intellij.openapi.actionSystem.ex.AnActionListener
+import com.intellij.openapi.actionSystem.impl.ProxyShortcutSet
 import com.intellij.openapi.editor.Editor
 import com.intellij.openapi.project.DumbAwareToggleAction
 import com.maddyhome.idea.vim.KeyHandler
 import com.maddyhome.idea.vim.VimPlugin
-import com.maddyhome.idea.vim.command.CommandState
+import com.maddyhome.idea.vim.command.VimStateMachine
 import com.maddyhome.idea.vim.group.NotificationService
 import com.maddyhome.idea.vim.helper.EditorDataContext
-import com.maddyhome.idea.vim.helper.commandState
 import com.maddyhome.idea.vim.helper.inNormalMode
 import com.maddyhome.idea.vim.helper.isIdeaVimDisabledHere
+import com.maddyhome.idea.vim.helper.vimStateMachine
 import com.maddyhome.idea.vim.newapi.vim
 import com.maddyhome.idea.vim.options.OptionConstants
 import com.maddyhome.idea.vim.options.OptionScope
@@ -70,7 +71,7 @@ object IdeaSpecifics {
       //region Track action id
       if (VimPlugin.getOptionService().isSet(OptionScope.GLOBAL, OptionConstants.trackactionidsName)) {
         if (action !is NotificationService.ActionIdNotifier.CopyActionId && action !is NotificationService.ActionIdNotifier.StopTracking) {
-          val id: String? = ActionManager.getInstance().getId(action)
+          val id: String? = ActionManager.getInstance().getId(action) ?: (action.shortcutSet as? ProxyShortcutSet)?.actionId
           VimPlugin.getNotifications(dataContext.getData(CommonDataKeys.PROJECT)).notifyActionId(id)
         }
       }
@@ -88,8 +89,8 @@ object IdeaSpecifics {
       }
       ) {
         editor?.let {
-          val commandState = it.vim.commandState
-          while (commandState.mode != CommandState.Mode.COMMAND) {
+          val commandState = it.vim.vimStateMachine
+          while (commandState.mode != VimStateMachine.Mode.COMMAND) {
             commandState.popModes()
           }
           VimPlugin.getChange().insertBeforeCursor(it.vim, dataContext.vim)

src/main/java/com/maddyhome/idea/vim/listener/VimListenerManager.kt

@@ -44,7 +44,7 @@ import com.maddyhome.idea.vim.KeyHandler
 import com.maddyhome.idea.vim.VimKeyListener
 import com.maddyhome.idea.vim.VimPlugin
 import com.maddyhome.idea.vim.VimTypedActionHandler
-import com.maddyhome.idea.vim.command.CommandState
+import com.maddyhome.idea.vim.command.VimStateMachine
 import com.maddyhome.idea.vim.ex.ExOutputModel
 import com.maddyhome.idea.vim.group.EditorGroup
 import com.maddyhome.idea.vim.group.FileGroup
@@ -425,7 +425,7 @@ object VimListenerManager {
         ExOutputModel.getInstance(editor).clear()
 
         val caretModel = editor.caretModel
-        if (editor.subMode != CommandState.SubMode.NONE) {
+        if (editor.subMode != VimStateMachine.SubMode.NONE) {
           caretModel.removeSecondaryCarets()
         }
 

src/main/java/com/maddyhome/idea/vim/newapi/ChangeGroup.kt

@@ -28,11 +28,12 @@ import com.maddyhome.idea.vim.VimPlugin
 import com.maddyhome.idea.vim.api.ExecutionContext
 import com.maddyhome.idea.vim.api.LineDeleteShift
 import com.maddyhome.idea.vim.api.VimCaret
+import com.maddyhome.idea.vim.api.VimChangeGroupBase
 import com.maddyhome.idea.vim.api.VimEditor
 import com.maddyhome.idea.vim.api.VimMotionGroupBase
 import com.maddyhome.idea.vim.api.injector
-import com.maddyhome.idea.vim.command.CommandState
 import com.maddyhome.idea.vim.command.SelectionType
+import com.maddyhome.idea.vim.command.VimStateMachine
 import com.maddyhome.idea.vim.common.EditorLine
 import com.maddyhome.idea.vim.common.IndentConfig
 import com.maddyhome.idea.vim.common.OperatedRange
@@ -40,7 +41,6 @@ import com.maddyhome.idea.vim.common.TextRange
 import com.maddyhome.idea.vim.common.VimRange
 import com.maddyhome.idea.vim.common.including
 import com.maddyhome.idea.vim.common.offset
-import com.maddyhome.idea.vim.group.ChangeGroup
 import com.maddyhome.idea.vim.group.MotionGroup
 import com.maddyhome.idea.vim.helper.EditorHelper
 import com.maddyhome.idea.vim.helper.inlayAwareVisualColumn
@@ -62,7 +62,7 @@ fun changeRange(
   var col = 0
   var lines = 0
   if (type === SelectionType.BLOCK_WISE) {
-    lines = ChangeGroup.getLinesCountInVisualBlock(IjVimEditor(editor), range)
+    lines = VimChangeGroupBase.getLinesCountInVisualBlock(IjVimEditor(editor), range)
     col = editor.offsetToLogicalPosition(range.startOffset).column
     if (caret.vimLastColumn == VimMotionGroupBase.LAST_COLUMN) {
       col = VimMotionGroupBase.LAST_COLUMN
@@ -103,7 +103,7 @@ fun changeRange(
       if (type == SelectionType.BLOCK_WISE) {
         VimPlugin.getChange().setInsertRepeat(lines, col, false)
       }
-      editor.vimChangeActionSwitchMode = CommandState.Mode.INSERT
+      editor.vimChangeActionSwitchMode = VimStateMachine.Mode.INSERT
     }
   } else {
     VimPlugin.getChange().insertBeforeCursor(editor.vim, context.vim)
@@ -158,9 +158,9 @@ fun deleteRange(
 fun insertLineAround(editor: VimEditor, context: ExecutionContext, shift: Int) {
   val project = (editor as IjVimEditor).editor.project
 
-  VimPlugin.getChange().initInsert(editor, context, CommandState.Mode.INSERT)
+  VimPlugin.getChange().initInsert(editor, context, VimStateMachine.Mode.INSERT)
 
-  if (!CommandState.getInstance(editor).isDotRepeatInProgress) {
+  if (!VimStateMachine.getInstance(editor).isDotRepeatInProgress) {
     for (vimCaret in editor.carets()) {
       val caret = (vimCaret as IjVimCaret).caret
       val line = vimCaret.getLine()

src/main/java/com/maddyhome/idea/vim/newapi/IjVimCaret.kt

@@ -22,7 +22,10 @@ import com.intellij.openapi.editor.Caret
 import com.intellij.openapi.editor.LogicalPosition
 import com.intellij.openapi.editor.VisualPosition
 import com.maddyhome.idea.vim.VimPlugin
+import com.maddyhome.idea.vim.api.CaretRegisterStorage
+import com.maddyhome.idea.vim.api.CaretRegisterStorageBase
 import com.maddyhome.idea.vim.api.VimCaret
+import com.maddyhome.idea.vim.api.VimCaretBase
 import com.maddyhome.idea.vim.api.VimEditor
 import com.maddyhome.idea.vim.api.VimLogicalPosition
 import com.maddyhome.idea.vim.api.VimVisualPosition
@@ -38,13 +41,23 @@ import com.maddyhome.idea.vim.group.visual.vimSetSystemSelectionSilently
 import com.maddyhome.idea.vim.group.visual.vimUpdateEditorSelection
 import com.maddyhome.idea.vim.helper.inlayAwareVisualColumn
 import com.maddyhome.idea.vim.helper.moveToInlayAwareOffset
+import com.maddyhome.idea.vim.helper.registerStorage
 import com.maddyhome.idea.vim.helper.vimInsertStart
 import com.maddyhome.idea.vim.helper.vimLastColumn
 import com.maddyhome.idea.vim.helper.vimLastVisualOperatorRange
 import com.maddyhome.idea.vim.helper.vimLine
 import com.maddyhome.idea.vim.helper.vimSelectionStart
 
-class IjVimCaret(val caret: Caret) : VimCaret {
+class IjVimCaret(val caret: Caret) : VimCaretBase() {
+  override val registerStorage: CaretRegisterStorage
+    get() {
+      var storage = this.caret.registerStorage
+      if (storage == null) {
+        storage = CaretRegisterStorageBase(editor.primaryCaret().ij == caret)
+        this.caret.registerStorage = storage
+      }
+      return storage
+    }
   override val editor: VimEditor
     get() = IjVimEditor(caret.editor)
   override val offset: Offset

src/main/java/com/maddyhome/idea/vim/newapi/IjVimDocument.kt

@@ -54,4 +54,4 @@ class IjVimDocument(private val document: Document) : VimDocument {
   override fun getOffsetGuard(offset: Offset): LiveRange? {
     return document.getOffsetGuard(offset.point)?.vim
   }
-}
+}

src/main/java/com/maddyhome/idea/vim/newapi/IjVimEditor.kt

@@ -38,9 +38,9 @@ import com.maddyhome.idea.vim.api.VimLogicalPosition
 import com.maddyhome.idea.vim.api.VimSelectionModel
 import com.maddyhome.idea.vim.api.VimVisualPosition
 import com.maddyhome.idea.vim.api.VirtualFile
-import com.maddyhome.idea.vim.command.CommandState
 import com.maddyhome.idea.vim.command.OperatorArguments
 import com.maddyhome.idea.vim.command.SelectionType
+import com.maddyhome.idea.vim.command.VimStateMachine
 import com.maddyhome.idea.vim.common.EditorLine
 import com.maddyhome.idea.vim.common.LiveRange
 import com.maddyhome.idea.vim.common.Offset
@@ -72,7 +72,7 @@ class IjVimEditor(editor: Editor) : MutableLinearEditor() {
   val originalEditor = editor
 
   override val lfMakesNewLine: Boolean = true
-  override var vimChangeActionSwitchMode: CommandState.Mode?
+  override var vimChangeActionSwitchMode: VimStateMachine.Mode?
     get() = editor.vimChangeActionSwitchMode
     set(value) {
       editor.vimChangeActionSwitchMode = value

src/main/java/com/maddyhome/idea/vim/newapi/IjVimInjector.kt

@@ -3,6 +3,7 @@ package com.maddyhome.idea.vim.newapi
 import com.intellij.openapi.components.service
 import com.intellij.openapi.components.serviceIfCreated
 import com.intellij.openapi.diagnostic.Logger
+import com.intellij.openapi.editor.Editor
 import com.maddyhome.idea.vim.api.EngineEditorHelper
 import com.maddyhome.idea.vim.api.ExEntryPanel
 import com.maddyhome.idea.vim.api.ExecutionContextManager
@@ -39,7 +40,7 @@ import com.maddyhome.idea.vim.api.VimrcFileState
 import com.maddyhome.idea.vim.api.VimscriptExecutor
 import com.maddyhome.idea.vim.api.VimscriptFunctionService
 import com.maddyhome.idea.vim.api.VimscriptParser
-import com.maddyhome.idea.vim.command.CommandState
+import com.maddyhome.idea.vim.command.VimStateMachine
 import com.maddyhome.idea.vim.common.VimMachine
 import com.maddyhome.idea.vim.diagnostic.VimLogger
 import com.maddyhome.idea.vim.ex.ExOutputModel
@@ -63,11 +64,11 @@ import com.maddyhome.idea.vim.helper.IjEditorHelper
 import com.maddyhome.idea.vim.helper.IjVimStringParser
 import com.maddyhome.idea.vim.helper.UndoRedoHelper
 import com.maddyhome.idea.vim.helper.VimCommandLineHelper
-import com.maddyhome.idea.vim.helper.vimCommandState
+import com.maddyhome.idea.vim.helper.vimStateMachine
 import com.maddyhome.idea.vim.history.VimHistory
 import com.maddyhome.idea.vim.macro.VimMacro
 import com.maddyhome.idea.vim.mark.VimMarkGroup
-import com.maddyhome.idea.vim.options.OptionService
+import com.maddyhome.idea.vim.vimscript.services.OptionService
 import com.maddyhome.idea.vim.put.VimPut
 import com.maddyhome.idea.vim.register.VimRegisterGroup
 import com.maddyhome.idea.vim.ui.VimRcFileState
@@ -75,7 +76,7 @@ import com.maddyhome.idea.vim.undo.VimUndoRedo
 import com.maddyhome.idea.vim.vimscript.Executor
 import com.maddyhome.idea.vim.vimscript.services.FunctionStorage
 import com.maddyhome.idea.vim.vimscript.services.PatternService
-import com.maddyhome.idea.vim.vimscript.services.VimVariableService
+import com.maddyhome.idea.vim.vimscript.services.VariableService
 import com.maddyhome.idea.vim.yank.VimYankGroup
 
 class IjVimInjector : VimInjectorBase() {
@@ -160,7 +161,7 @@ class IjVimInjector : VimInjectorBase() {
 
   override val functionService: VimscriptFunctionService
     get() = FunctionStorage
-  override val variableService: VimVariableService
+  override val variableService: VariableService
     get() = service()
   override val vimrcFileState: VimrcFileState
     get() = VimRcFileState
@@ -179,15 +180,23 @@ class IjVimInjector : VimInjectorBase() {
   override val vimStorageService: VimStorageService
     get() = service()
 
-  override fun commandStateFor(editor: VimEditor): CommandState {
-    var res = editor.ij.vimCommandState
+  override fun commandStateFor(editor: VimEditor): VimStateMachine {
+    var res = editor.ij.vimStateMachine
     if (res == null) {
-      res = CommandState(editor)
-      editor.ij.vimCommandState = res
+      res = VimStateMachine(editor)
+      editor.ij.vimStateMachine = res
     }
     return res
   }
 
+  override fun commandStateFor(editor: Any): VimStateMachine {
+    return when (editor) {
+      is VimEditor -> this.commandStateFor(editor)
+      is Editor -> this.commandStateFor(IjVimEditor(editor))
+      else -> error("Unexpected type: $editor")
+    }
+  }
+
   override val engineEditorHelper: EngineEditorHelper
     get() = service<IjEditorHelper>()
   override val editorGroup: VimEditorGroup

src/main/java/com/maddyhome/idea/vim/newapi/IjVimSearchHelper.kt

@@ -110,6 +110,17 @@ class IjVimSearchHelper : VimSearchHelper {
     )
   }
 
+  override fun findNextWordEnd(
+    chars: CharSequence,
+    pos: Int,
+    size: Int,
+    count: Int,
+    bigWord: Boolean,
+    spaceWords: Boolean,
+  ): Int {
+    return SearchHelper.findNextWordEnd(chars, pos, size, count, bigWord, spaceWords)
+  }
+
   override fun findNextWord(editor: VimEditor, searchFrom: Int, count: Int, bigWord: Boolean): Int {
     return SearchHelper.findNextWord(
       (editor as IjVimEditor).editor,

src/main/java/com/maddyhome/idea/vim/option/OptionsManager.kt

@@ -0,0 +1,59 @@
+/*
+ * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
+ * Copyright (C) 2003-2022 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.option
+
+import com.maddyhome.idea.vim.api.injector
+import com.maddyhome.idea.vim.options.OptionConstants
+import com.maddyhome.idea.vim.options.OptionConstants.Companion.ignorecaseName
+import com.maddyhome.idea.vim.options.OptionConstants.Companion.smartcaseName
+import com.maddyhome.idea.vim.options.OptionConstants.Companion.timeoutName
+import com.maddyhome.idea.vim.options.OptionConstants.Companion.timeoutlenName
+import com.maddyhome.idea.vim.options.OptionScope
+import com.maddyhome.idea.vim.options.helpers.KeywordOptionHelper
+import com.maddyhome.idea.vim.vimscript.services.IjVimOptionService
+
+/**
+ * COMPATIBILITY-LAYER: Added a class and package
+ */
+object OptionsManager {
+  val ignorecase: ToggleOption
+    get() = (injector.optionService as IjVimOptionService).getRawOption(ignorecaseName) as ToggleOption
+  val smartcase: ToggleOption
+    get() = (injector.optionService as IjVimOptionService).getRawOption(smartcaseName) as ToggleOption
+  val timeout: ToggleOption
+    get() = (injector.optionService as IjVimOptionService).getRawOption(timeoutName) as ToggleOption
+  val timeoutlen: NumberOption
+    get() = (injector.optionService as IjVimOptionService).getRawOption(timeoutlenName) as NumberOption
+  val iskeyword: KeywordOption
+    get() = KeywordOption(KeywordOptionHelper)
+}
+
+class KeywordOption(val helper: KeywordOptionHelper) {
+  fun toRegex(): List<String> {
+    return helper.toRegex()
+  }
+}
+
+object StrictMode {
+  fun fail(message: String) {
+    if (injector.optionService.isSet(OptionScope.GLOBAL, OptionConstants.ideastrictmodeName)) {
+      error(message)
+    }
+  }
+}

src/main/java/com/maddyhome/idea/vim/troubleshooting/Troubleshooter.kt

@@ -4,7 +4,7 @@ import com.intellij.openapi.components.Service
 import com.intellij.openapi.components.service
 import com.intellij.util.containers.MultiMap
 import com.maddyhome.idea.vim.api.injector
-import com.maddyhome.idea.vim.common.MappingMode
+import com.maddyhome.idea.vim.command.MappingMode
 import com.maddyhome.idea.vim.key.MappingOwner
 import com.maddyhome.idea.vim.key.ToKeysMappingInfo
 

src/main/java/com/maddyhome/idea/vim/ui/ModalEntry.kt

@@ -20,8 +20,8 @@ package com.maddyhome.idea.vim.ui
 
 import com.maddyhome.idea.vim.KeyHandler
 import com.maddyhome.idea.vim.api.VimEditor
-import com.maddyhome.idea.vim.helper.commandState
 import com.maddyhome.idea.vim.helper.isCloseKeyStroke
+import com.maddyhome.idea.vim.helper.vimStateMachine
 import java.awt.KeyEventDispatcher
 import java.awt.KeyboardFocusManager
 import java.awt.Toolkit
@@ -62,7 +62,7 @@ object ModalEntry {
         } else {
           return true
         }
-        if (editor.commandState.isRecording) {
+        if (editor.vimStateMachine.isRecording) {
           KeyHandler.getInstance().modalEntryKeys += stroke
         }
         if (!processor(stroke)) {

src/main/java/com/maddyhome/idea/vim/ui/ShowCmd.kt

@@ -33,7 +33,7 @@ import com.intellij.util.Consumer
 import com.maddyhome.idea.vim.VimPlugin
 import com.maddyhome.idea.vim.helper.EngineStringHelper
 import com.maddyhome.idea.vim.helper.VimNlsSafe
-import com.maddyhome.idea.vim.helper.commandState
+import com.maddyhome.idea.vim.helper.vimStateMachine
 import com.maddyhome.idea.vim.newapi.vim
 import com.maddyhome.idea.vim.options.OptionChangeListener
 import com.maddyhome.idea.vim.options.OptionConstants
@@ -70,7 +70,7 @@ object ShowCmd {
   fun getFullText(editor: Editor?): String {
     if (!VimPlugin.getOptionService().isSet(OptionScope.GLOBAL, OptionConstants.showcmdName) || editor == null || editor.isDisposed) return ""
 
-    val editorState = editor.vim.commandState
+    val editorState = editor.vim.vimStateMachine
     return EngineStringHelper.toPrintableCharacters(editorState.commandBuilder.keys + editorState.mappingState.keys)
   }
 }

src/main/java/com/maddyhome/idea/vim/vimscript/model/functions/handlers/JoinFunctionHandler.kt

@@ -0,0 +1,49 @@
+/*
+ * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
+ * Copyright (C) 2003-2022 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.vimscript.model.functions.handlers
+
+import com.maddyhome.idea.vim.api.ExecutionContext
+import com.maddyhome.idea.vim.api.VimEditor
+import com.maddyhome.idea.vim.ex.ExException
+import com.maddyhome.idea.vim.vimscript.model.VimLContext
+import com.maddyhome.idea.vim.vimscript.model.datatypes.VimDataType
+import com.maddyhome.idea.vim.vimscript.model.datatypes.VimList
+import com.maddyhome.idea.vim.vimscript.model.datatypes.VimString
+import com.maddyhome.idea.vim.vimscript.model.expressions.Expression
+import com.maddyhome.idea.vim.vimscript.model.functions.FunctionHandler
+
+class JoinFunctionHandler : FunctionHandler() {
+  override val name: String = "join"
+  override val minimumNumberOfArguments: Int = 1
+  override val maximumNumberOfArguments: Int = 2
+
+  override fun doFunction(
+    argumentValues: List<Expression>,
+    editor: VimEditor,
+    context: ExecutionContext,
+    vimContext: VimLContext,
+  ): VimDataType {
+    val firstArgument = argumentValues[0].evaluate(editor, context, vimContext)
+    if (firstArgument !is VimList) {
+      throw ExException("E714: List required")
+    }
+    val secondArgument = argumentValues.getOrNull(1)?.evaluate(editor, context, vimContext) ?: VimString(" ")
+    return VimString(firstArgument.values.joinToString(secondArgument.asString()) { it.toString() })
+  }
+}

src/main/java/com/maddyhome/idea/vim/vimscript/model/functions/handlers/TolowerFunctionHandler.kt

@@ -0,0 +1,44 @@
+/*
+ * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
+ * Copyright (C) 2003-2022 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.vimscript.model.functions.handlers
+
+import com.maddyhome.idea.vim.api.ExecutionContext
+import com.maddyhome.idea.vim.api.VimEditor
+import com.maddyhome.idea.vim.vimscript.model.VimLContext
+import com.maddyhome.idea.vim.vimscript.model.datatypes.VimDataType
+import com.maddyhome.idea.vim.vimscript.model.datatypes.VimString
+import com.maddyhome.idea.vim.vimscript.model.expressions.Expression
+import com.maddyhome.idea.vim.vimscript.model.functions.FunctionHandler
+import java.util.*
+
+class TolowerFunctionHandler : FunctionHandler() {
+  override val name: String = "tolower"
+  override val minimumNumberOfArguments: Int = 1
+  override val maximumNumberOfArguments: Int = 1
+
+  override fun doFunction(
+    argumentValues: List<Expression>,
+    editor: VimEditor,
+    context: ExecutionContext,
+    vimContext: VimLContext,
+  ): VimDataType {
+    val argumentString = argumentValues[0].evaluate(editor, context, vimContext).asString()
+    return VimString(argumentString.lowercase(Locale.getDefault()))
+  }
+}

src/main/java/com/maddyhome/idea/vim/vimscript/model/functions/handlers/ToupperFunctionHandler.kt

@@ -0,0 +1,44 @@
+/*
+ * IdeaVim - Vim emulator for IDEs based on the IntelliJ platform
+ * Copyright (C) 2003-2022 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.vimscript.model.functions.handlers
+
+import com.maddyhome.idea.vim.api.ExecutionContext
+import com.maddyhome.idea.vim.api.VimEditor
+import com.maddyhome.idea.vim.vimscript.model.VimLContext
+import com.maddyhome.idea.vim.vimscript.model.datatypes.VimDataType
+import com.maddyhome.idea.vim.vimscript.model.datatypes.VimString
+import com.maddyhome.idea.vim.vimscript.model.expressions.Expression
+import com.maddyhome.idea.vim.vimscript.model.functions.FunctionHandler
+import java.util.*
+
+class ToupperFunctionHandler : FunctionHandler() {
+  override val name: String = "toupper"
+  override val minimumNumberOfArguments: Int = 1
+  override val maximumNumberOfArguments: Int = 1
+
+  override fun doFunction(
+    argumentValues: List<Expression>,
+    editor: VimEditor,
+    context: ExecutionContext,
+    vimContext: VimLContext,
+  ): VimDataType {
+    val argumentString = argumentValues[0].evaluate(editor, context, vimContext).asString()
+    return VimString(argumentString.uppercase(Locale.getDefault()))
+  }
+}

src/main/java/com/maddyhome/idea/vim/vimscript/model/options/helpers/IdeaRefactorModeHelper.kt

@@ -25,9 +25,9 @@ import com.intellij.codeInsight.lookup.impl.LookupImpl
 import com.intellij.codeInsight.template.impl.TemplateManagerImpl
 import com.intellij.openapi.editor.Editor
 import com.maddyhome.idea.vim.VimPlugin
+import com.maddyhome.idea.vim.helper.editorMode
 import com.maddyhome.idea.vim.helper.hasBlockOrUnderscoreCaret
 import com.maddyhome.idea.vim.helper.hasVisualSelection
-import com.maddyhome.idea.vim.helper.mode
 import com.maddyhome.idea.vim.helper.subMode
 import com.maddyhome.idea.vim.listener.SelectionVimListenerSuppressor
 import com.maddyhome.idea.vim.newapi.vim
@@ -42,12 +42,12 @@ object IdeaRefactorModeHelper {
 
   fun correctSelection(editor: Editor) {
     val action: () -> Unit = {
-      if (!editor.mode.hasVisualSelection && editor.selectionModel.hasSelection()) {
+      if (!editor.editorMode.hasVisualSelection && editor.selectionModel.hasSelection()) {
         SelectionVimListenerSuppressor.lock().use {
           editor.selectionModel.removeSelection()
         }
       }
-      if (editor.mode.hasVisualSelection && editor.selectionModel.hasSelection()) {
+      if (editor.editorMode.hasVisualSelection && editor.selectionModel.hasSelection()) {
         val autodetectedSubmode = VimPlugin.getVisualMotion().autodetectVisualSubmode(editor.vim)
         if (editor.subMode != autodetectedSubmode) {
           // Update the submode

src/main/java/com/maddyhome/idea/vim/vimscript/parser/visitors/CommandVisitor.kt

@@ -162,7 +162,7 @@ object CommandVisitor : VimscriptBaseVisitor<Command>() {
     val ranges = createRange(valueAndOffset.first, valueAndOffset.second, move)
     if (ranges == null) {
       logger.warn("Could not create a range for node ${ctx.text}")
-      throw ExException("Could not create a range")
+      throw ExException("Could not create a range ${ctx.text}")
     }
     return ranges
   }
@@ -180,7 +180,7 @@ object CommandVisitor : VimscriptBaseVisitor<Command>() {
   override fun visitLet1Command(ctx: VimscriptParser.Let1CommandContext): Command {
     val ranges: Ranges = parseRanges(ctx.range())
     val variable: Expression = expressionVisitor.visit(ctx.expr(0))
-    val operator = getByValue(ctx.assignmentOperator.text)
+    val operator = getByValue(ctx.assignmentOperator().text)
     val expression: Expression = expressionVisitor.visit(ctx.expr(1))
     return LetCommand(ranges, variable, operator, expression, true)
   }

src/main/java/com/maddyhome/idea/vim/vimscript/services/IjVariableService.kt

@@ -33,7 +33,7 @@ import com.maddyhome.idea.vim.vimscript.model.datatypes.VimString
 import com.maddyhome.idea.vim.vimscript.model.expressions.Scope
 import com.maddyhome.idea.vim.vimscript.model.expressions.Variable
 
-internal class VimVariableServiceImpl : VimVariableServiceBase() {
+class IjVariableService : VimVariableServiceBase() {
   override fun storeVariable(variable: Variable, value: VimDataType, editor: VimEditor, context: ExecutionContext, vimContext: VimLContext) {
     super.storeVariable(variable, value, editor, context, vimContext)
 

src/main/java/com/maddyhome/idea/vim/vimscript/services/IjVimOptionService.kt

@@ -20,9 +20,9 @@ package com.maddyhome.idea.vim.vimscript.services
 
 import com.intellij.openapi.application.ApplicationNamesInfo
 import com.maddyhome.idea.vim.api.VimOptionServiceBase
+import com.maddyhome.idea.vim.option.ToggleOption
 import com.maddyhome.idea.vim.options.OptionConstants
 import com.maddyhome.idea.vim.options.StringOption
-import com.maddyhome.idea.vim.options.ToggleOption
 
 internal class IjVimOptionService : VimOptionServiceBase() {
 

src/main/resources/META-INF/includes/ApplicationServices.xml

@@ -26,13 +26,13 @@
                         serviceInterface="com.maddyhome.idea.vim.api.VimVisualMotionGroup"/>
     <applicationService serviceImplementation="com.maddyhome.idea.vim.group.copy.YankGroup"/>
     <applicationService serviceImplementation="com.maddyhome.idea.vim.group.copy.PutGroup"/>
-    <applicationService serviceImplementation="com.maddyhome.idea.vim.vimscript.services.VimVariableServiceImpl"
-                        serviceInterface="com.maddyhome.idea.vim.vimscript.services.VimVariableService"/>
+    <applicationService serviceImplementation="com.maddyhome.idea.vim.vimscript.services.IjVariableService"
+                        serviceInterface="com.maddyhome.idea.vim.vimscript.services.VariableService"/>
     <applicationService serviceImplementation="com.maddyhome.idea.vim.group.IjStatisticsService"
                         serviceInterface="com.maddyhome.idea.vim.api.VimStatistics"/>
 
     <applicationService serviceImplementation="com.maddyhome.idea.vim.vimscript.services.IjVimOptionService"
-                        serviceInterface="com.maddyhome.idea.vim.options.OptionService"/>
+                        serviceInterface="com.maddyhome.idea.vim.vimscript.services.OptionService"/>
     <applicationService serviceImplementation="com.maddyhome.idea.vim.group.IjVimStorageService"
                         serviceInterface="com.maddyhome.idea.vim.api.VimStorageService"/>
     <applicationService serviceImplementation="com.maddyhome.idea.vim.group.IjVimSystemInfoService"

src/main/resources/META-INF/includes/VimLibraryFunctions.xml

@@ -11,5 +11,8 @@
     <vimLibraryFunction implementation="com.maddyhome.idea.vim.vimscript.model.functions.handlers.FuncrefFunctionHandler" name="funcref"/>
     <vimLibraryFunction implementation="com.maddyhome.idea.vim.vimscript.model.functions.handlers.HasFunctionHandler" name="has"/>
     <vimLibraryFunction implementation="com.maddyhome.idea.vim.vimscript.model.functions.handlers.SubmatchFunctionHandler" name="submatch"/>
+    <vimLibraryFunction implementation="com.maddyhome.idea.vim.vimscript.model.functions.handlers.TolowerFunctionHandler" name="tolower"/>
+    <vimLibraryFunction implementation="com.maddyhome.idea.vim.vimscript.model.functions.handlers.ToupperFunctionHandler" name="toupper"/>
+    <vimLibraryFunction implementation="com.maddyhome.idea.vim.vimscript.model.functions.handlers.JoinFunctionHandler" name="join"/>
   </extensions>
 </idea-plugin>

src/test/java/org/jetbrains/plugins/ideavim/JavaVimTestCase.java

@@ -24,16 +24,15 @@ import com.intellij.openapi.project.Project;
 import com.intellij.testFramework.fixtures.JavaCodeInsightFixtureTestCase;
 import com.maddyhome.idea.vim.KeyHandler;
 import com.maddyhome.idea.vim.VimPlugin;
-import com.maddyhome.idea.vim.command.CommandState;
+import com.maddyhome.idea.vim.command.VimStateMachine;
 import com.maddyhome.idea.vim.group.visual.VimVisualTimer;
 import com.maddyhome.idea.vim.helper.EditorDataContext;
 import com.maddyhome.idea.vim.helper.RunnableHelper;
 import com.maddyhome.idea.vim.helper.TestInputModel;
 import com.maddyhome.idea.vim.newapi.IjExecutionContext;
 import com.maddyhome.idea.vim.newapi.IjVimEditor;
-import com.maddyhome.idea.vim.ui.ex.ExEntryPanel;
 import com.maddyhome.idea.vim.options.OptionScope;
-import com.maddyhome.idea.vim.vimscript.services.VimVariableServiceImpl;
+import com.maddyhome.idea.vim.ui.ex.ExEntryPanel;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
@@ -63,7 +62,7 @@ public abstract class JavaVimTestCase extends JavaCodeInsightFixtureTestCase {
   @Override
   protected void tearDown() throws Exception {
     ExEntryPanel.getInstance().deactivate(false);
-    ((VimVariableServiceImpl) VimPlugin.getVariableService()).clear();
+    VimPlugin.getVariableService().clear();
     Timer swingTimer = VimVisualTimer.INSTANCE.getSwingTimer();
     if (swingTimer != null) {
       swingTimer.stop();
@@ -107,8 +106,8 @@ public abstract class JavaVimTestCase extends JavaCodeInsightFixtureTestCase {
     return editor;
   }
 
-  public void assertMode(@NotNull CommandState.Mode expectedMode) {
-    final CommandState.Mode mode = CommandState.getInstance(new IjVimEditor(myFixture.getEditor())).getMode();
+  public void assertMode(@NotNull VimStateMachine.Mode expectedMode) {
+    final VimStateMachine.Mode mode = VimStateMachine.getInstance(new IjVimEditor(myFixture.getEditor())).getMode();
     assertEquals(expectedMode, mode);
   }
 

src/test/java/org/jetbrains/plugins/ideavim/NeovimTesting.kt

@@ -28,7 +28,7 @@ import com.maddyhome.idea.vim.VimPlugin
 import com.maddyhome.idea.vim.command.SelectionType
 import com.maddyhome.idea.vim.common.CharacterPosition
 import com.maddyhome.idea.vim.helper.VimBehaviorDiffers
-import com.maddyhome.idea.vim.helper.commandState
+import com.maddyhome.idea.vim.helper.vimStateMachine
 import com.maddyhome.idea.vim.newapi.vim
 import com.maddyhome.idea.vim.register.RegisterConstants.ALTERNATE_BUFFER_REGISTER
 import com.maddyhome.idea.vim.register.RegisterConstants.BLACK_HOLE_REGISTER
@@ -153,7 +153,7 @@ internal object NeovimTesting {
   }
 
   private fun assertMode(editor: Editor) {
-    val ideavimState = editor.vim.commandState.toVimNotation()
+    val ideavimState = editor.vim.vimStateMachine.toVimNotation()
     val neovimState = neovimApi.mode.get().mode
     assertEquals(neovimState, ideavimState)
   }

src/test/java/org/jetbrains/plugins/ideavim/RegisterActionsTest.kt

@@ -21,10 +21,10 @@ package org.jetbrains.plugins.ideavim
 import com.maddyhome.idea.vim.RegisterActions.VIM_ACTIONS_EP
 import com.maddyhome.idea.vim.VimPlugin
 import com.maddyhome.idea.vim.api.injector
-import com.maddyhome.idea.vim.command.CommandState
-import com.maddyhome.idea.vim.common.CommandNode
-import com.maddyhome.idea.vim.common.CommandPartNode
-import com.maddyhome.idea.vim.common.MappingMode
+import com.maddyhome.idea.vim.command.MappingMode
+import com.maddyhome.idea.vim.command.VimStateMachine
+import com.maddyhome.idea.vim.key.CommandNode
+import com.maddyhome.idea.vim.key.CommandPartNode
 import com.maddyhome.idea.vim.handler.ActionBeanClass
 import junit.framework.TestCase
 import javax.swing.KeyStroke
@@ -33,7 +33,7 @@ class RegisterActionsTest : VimTestCase() {
   fun `test simple action`() {
     val before = "I ${c}found it in a legendary land"
     val after = "I f${c}ound it in a legendary land"
-    doTest("l", before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest("l", before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   @TestWithoutNeovim(reason = SkipNeovimReason.EDITOR_MODIFICATION)
@@ -44,7 +44,7 @@ class RegisterActionsTest : VimTestCase() {
     val keys = injector.parser.parseKeys("jklwB") // just random keys
     val before = "I ${c}found it in a legendary land"
     val after = "I jklwB${c}found it in a legendary land"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE) {
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE) {
       VimPlugin.setEnabled(false)
     }
   }
@@ -54,7 +54,7 @@ class RegisterActionsTest : VimTestCase() {
     val keys = injector.parser.parseKeys("l")
     val before = "I ${c}found it in a legendary land"
     val after = "I f${c}ound it in a legendary land"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE) {
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE) {
       VimPlugin.setEnabled(false)
       VimPlugin.setEnabled(true)
     }
@@ -65,7 +65,7 @@ class RegisterActionsTest : VimTestCase() {
     val keys = injector.parser.parseKeys("l")
     val before = "I ${c}found it in a legendary land"
     val after = "I f${c}ound it in a legendary land"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE) {
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE) {
       VimPlugin.setEnabled(false)
       VimPlugin.setEnabled(true)
       VimPlugin.setEnabled(true)
@@ -78,7 +78,7 @@ class RegisterActionsTest : VimTestCase() {
     val before = "I ${c}found it in a legendary land"
     val after = "I f${c}ound it in a legendary land"
     var motionRightAction: ActionBeanClass? = null
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE) {
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE) {
       motionRightAction = VIM_ACTIONS_EP.extensions().filter { it.actionId == "VimPreviousTabAction" }.findFirst().get()
 
       assertNotNull(getCommandNode())

src/test/java/org/jetbrains/plugins/ideavim/TestHelper.kt

@@ -24,9 +24,9 @@ import com.intellij.openapi.editor.LogicalPosition
 import com.intellij.testFramework.EditorTestUtil
 import com.intellij.testFramework.fixtures.CodeInsightTestFixture
 import com.maddyhome.idea.vim.VimPlugin
-import com.maddyhome.idea.vim.command.CommandState
+import com.maddyhome.idea.vim.command.VimStateMachine
 import com.maddyhome.idea.vim.common.TextRange
-import com.maddyhome.idea.vim.helper.mode
+import com.maddyhome.idea.vim.helper.editorMode
 import com.maddyhome.idea.vim.options.OptionConstants
 import com.maddyhome.idea.vim.options.OptionScope
 import com.maddyhome.idea.vim.vimscript.model.datatypes.VimInt
@@ -77,10 +77,10 @@ inline fun waitAndAssert(timeInMillis: Int = 1000, condition: () -> Boolean) {
 
 fun waitAndAssertMode(
   fixture: CodeInsightTestFixture,
-  mode: CommandState.Mode,
+  mode: VimStateMachine.Mode,
   timeInMillis: Int = (VimPlugin.getOptionService().getOptionValue(OptionScope.GLOBAL, OptionConstants.visualdelayName) as VimInt).value + 1000,
 ) {
-  waitAndAssert(timeInMillis) { fixture.editor.mode == mode }
+  waitAndAssert(timeInMillis) { fixture.editor.editorMode == mode }
 }
 
 fun assertDoesntChange(timeInMillis: Int = 1000, condition: () -> Boolean) {

src/test/java/org/jetbrains/plugins/ideavim/VimTestCase.kt

@@ -50,9 +50,9 @@ import com.maddyhome.idea.vim.KeyHandler
 import com.maddyhome.idea.vim.VimPlugin
 import com.maddyhome.idea.vim.action.VimShortcutKeyAction
 import com.maddyhome.idea.vim.api.injector
-import com.maddyhome.idea.vim.command.CommandState
-import com.maddyhome.idea.vim.command.CommandState.SubMode
-import com.maddyhome.idea.vim.common.MappingMode
+import com.maddyhome.idea.vim.command.MappingMode
+import com.maddyhome.idea.vim.command.VimStateMachine
+import com.maddyhome.idea.vim.command.VimStateMachine.SubMode
 import com.maddyhome.idea.vim.ex.ExException
 import com.maddyhome.idea.vim.ex.ExOutputModel.Companion.getInstance
 import com.maddyhome.idea.vim.group.visual.VimVisualTimer.swingTimer
@@ -61,9 +61,9 @@ import com.maddyhome.idea.vim.helper.EditorHelper
 import com.maddyhome.idea.vim.helper.GuicursorChangeListener
 import com.maddyhome.idea.vim.helper.RunnableHelper.runWriteCommand
 import com.maddyhome.idea.vim.helper.TestInputModel
+import com.maddyhome.idea.vim.helper.editorMode
 import com.maddyhome.idea.vim.helper.getGuiCursorMode
 import com.maddyhome.idea.vim.helper.inBlockSubMode
-import com.maddyhome.idea.vim.helper.mode
 import com.maddyhome.idea.vim.helper.subMode
 import com.maddyhome.idea.vim.key.MappingOwner
 import com.maddyhome.idea.vim.key.ToKeysMappingInfo
@@ -77,7 +77,6 @@ import com.maddyhome.idea.vim.ui.ex.ExEntryPanel
 import com.maddyhome.idea.vim.vimscript.model.datatypes.VimFuncref
 import com.maddyhome.idea.vim.vimscript.model.datatypes.VimInt
 import com.maddyhome.idea.vim.vimscript.parser.errors.IdeavimErrorListener
-import com.maddyhome.idea.vim.vimscript.services.VimVariableServiceImpl
 import org.assertj.core.api.Assertions
 import org.junit.Assert
 import java.awt.event.KeyEvent
@@ -137,7 +136,7 @@ abstract class VimTestCase : UsefulTestCase() {
     }
     SelectionVimListenerSuppressor.lock().use { myFixture.tearDown() }
     ExEntryPanel.getInstance().deactivate(false)
-    (VimPlugin.getVariableService() as VimVariableServiceImpl).clear()
+    VimPlugin.getVariableService().clear()
     VimFuncref.lambdaCounter = 0
     VimFuncref.anonymousCounter = 0
     IdeavimErrorListener.testLogger.clear()
@@ -439,8 +438,8 @@ abstract class VimTestCase : UsefulTestCase() {
     }
   }
 
-  fun assertMode(expectedMode: CommandState.Mode) {
-    val mode = myFixture.editor.mode
+  fun assertMode(expectedMode: VimStateMachine.Mode) {
+    val mode = myFixture.editor.editorMode
     Assert.assertEquals(expectedMode, mode)
   }
 
@@ -505,14 +504,14 @@ abstract class VimTestCase : UsefulTestCase() {
     before: String,
     after: String,
   ) {
-    doTest(keys, before, after, CommandState.Mode.COMMAND, SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, SubMode.NONE)
   }
 
   fun doTest(
     keys: List<String>,
     before: String,
     after: String,
-    modeAfter: CommandState.Mode,
+    modeAfter: VimStateMachine.Mode,
     subModeAfter: SubMode,
   ) {
     doTest(keys.joinToString(separator = ""), before, after, modeAfter, subModeAfter)
@@ -522,7 +521,7 @@ abstract class VimTestCase : UsefulTestCase() {
     keys: String,
     before: String,
     after: String,
-    modeAfter: CommandState.Mode,
+    modeAfter: VimStateMachine.Mode,
     subModeAfter: SubMode,
   ) {
     configureByText(before)
@@ -536,7 +535,7 @@ abstract class VimTestCase : UsefulTestCase() {
     keys: String,
     before: String,
     after: String,
-    modeAfter: CommandState.Mode,
+    modeAfter: VimStateMachine.Mode,
     subModeAfter: SubMode,
     fileType: FileType,
   ) {
@@ -554,7 +553,7 @@ abstract class VimTestCase : UsefulTestCase() {
     keys: String,
     before: String,
     after: String,
-    modeAfter: CommandState.Mode,
+    modeAfter: VimStateMachine.Mode,
     subModeAfter: SubMode,
     fileName: String,
   ) {
@@ -568,7 +567,7 @@ abstract class VimTestCase : UsefulTestCase() {
     NeovimTesting.assertState(myFixture.editor, this)
   }
 
-  protected fun performTest(keys: String, after: String, modeAfter: CommandState.Mode, subModeAfter: SubMode) {
+  protected fun performTest(keys: String, after: String, modeAfter: VimStateMachine.Mode, subModeAfter: SubMode) {
     typeText(injector.parser.parseKeys(keys))
     PlatformTestUtil.dispatchAllInvocationEventsInIdeEventQueue()
     @Suppress("IdeaVimAssertState")
@@ -580,7 +579,7 @@ abstract class VimTestCase : UsefulTestCase() {
     keys: List<KeyStroke>,
     before: String,
     after: String?,
-    modeAfter: CommandState.Mode,
+    modeAfter: VimStateMachine.Mode,
     subModeAfter: SubMode,
     afterEditorInitialized: (Editor) -> Unit,
   ) {
@@ -597,7 +596,7 @@ abstract class VimTestCase : UsefulTestCase() {
     NeovimTesting.setRegister(register, keys, this)
   }
 
-  protected fun assertState(modeAfter: CommandState.Mode, subModeAfter: SubMode) {
+  protected fun assertState(modeAfter: VimStateMachine.Mode, subModeAfter: SubMode) {
     assertMode(modeAfter)
     assertSubMode(subModeAfter)
     assertCaretsVisualAttributes()

src/test/java/org/jetbrains/plugins/ideavim/action/ChangeActionTest.kt

@@ -20,7 +20,7 @@ package org.jetbrains.plugins.ideavim.action
 import com.intellij.codeInsight.folding.CodeFoldingManager
 import com.intellij.codeInsight.folding.impl.FoldingUtil
 import com.maddyhome.idea.vim.api.injector
-import com.maddyhome.idea.vim.command.CommandState
+import com.maddyhome.idea.vim.command.VimStateMachine
 import com.maddyhome.idea.vim.helper.VimBehaviorDiffers
 import org.jetbrains.plugins.ideavim.SkipNeovimReason
 import org.jetbrains.plugins.ideavim.TestWithoutNeovim
@@ -33,8 +33,8 @@ class ChangeActionTest : VimTestCase() {
   // VIM-620 |i_CTRL-O|
   fun testInsertSingleCommandAndInserting() {
     doTest(
-      listOf("i", "<C-O>", "a", "123", "<Esc>", "x"), "abc${c}d\n", "abcd12\n", CommandState.Mode.COMMAND,
-      CommandState.SubMode.NONE
+      listOf("i", "<C-O>", "a", "123", "<Esc>", "x"), "abc${c}d\n", "abcd12\n", VimStateMachine.Mode.COMMAND,
+      VimStateMachine.SubMode.NONE
     )
   }
 
@@ -42,7 +42,7 @@ class ChangeActionTest : VimTestCase() {
   fun testInsertSingleCommandAndNewLineInserting() {
     doTest(
       listOf("i", "<C-O>", "o", "123", "<Esc>", "x"),
-      "abc${c}d\n", "abcd\n12\n", CommandState.Mode.COMMAND, CommandState.SubMode.NONE
+      "abc${c}d\n", "abcd\n12\n", VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE
     )
   }
 
@@ -50,7 +50,7 @@ class ChangeActionTest : VimTestCase() {
   fun testInsertSingleCommandAndNewLineInserting2() {
     doTest(
       listOf("i", "<C-O>", "v"),
-      "12${c}345", "12${s}${c}3${se}45", CommandState.Mode.INSERT_VISUAL, CommandState.SubMode.VISUAL_CHARACTER
+      "12${c}345", "12${s}${c}3${se}45", VimStateMachine.Mode.INSERT_VISUAL, VimStateMachine.SubMode.VISUAL_CHARACTER
     )
   }
 
@@ -58,7 +58,7 @@ class ChangeActionTest : VimTestCase() {
   fun testInsertSingleCommandAndNewLineInserting3() {
     doTest(
       listOf("i", "<C-O>", "v", "<esc>"),
-      "12${c}345", "12${c}345", CommandState.Mode.INSERT, CommandState.SubMode.NONE
+      "12${c}345", "12${c}345", VimStateMachine.Mode.INSERT, VimStateMachine.SubMode.NONE
     )
   }
 
@@ -66,7 +66,7 @@ class ChangeActionTest : VimTestCase() {
   fun testInsertSingleCommandAndNewLineInserting4() {
     doTest(
       listOf("i", "<C-O>", "v", "d"),
-      "12${c}345", "12${c}45", CommandState.Mode.INSERT, CommandState.SubMode.NONE
+      "12${c}345", "12${c}45", VimStateMachine.Mode.INSERT, VimStateMachine.SubMode.NONE
     )
   }
 
@@ -74,7 +74,7 @@ class ChangeActionTest : VimTestCase() {
   fun testInsertSingleCommandAndNewLineInserting5() {
     doTest(
       listOf("i", "<C-O>", "v", "<C-G>"),
-      "12${c}345", "12${s}3${c}${se}45", CommandState.Mode.INSERT_SELECT, CommandState.SubMode.VISUAL_CHARACTER
+      "12${c}345", "12${s}3${c}${se}45", VimStateMachine.Mode.INSERT_SELECT, VimStateMachine.SubMode.VISUAL_CHARACTER
     )
   }
 
@@ -82,7 +82,7 @@ class ChangeActionTest : VimTestCase() {
   fun testInsertSingleCommandAndNewLineInserting6() {
     doTest(
       listOf("i", "<C-O>", "gh"),
-      "12${c}345", "12${s}3${c}${se}45", CommandState.Mode.INSERT_SELECT, CommandState.SubMode.VISUAL_CHARACTER
+      "12${c}345", "12${s}3${c}${se}45", VimStateMachine.Mode.INSERT_SELECT, VimStateMachine.SubMode.VISUAL_CHARACTER
     )
   }
 
@@ -90,7 +90,7 @@ class ChangeActionTest : VimTestCase() {
   fun testInsertSingleCommandAndNewLineInserting7() {
     doTest(
       listOf("i", "<C-O>", "gh", "<esc>"),
-      "12${c}345", "123${c}45", CommandState.Mode.INSERT, CommandState.SubMode.NONE
+      "12${c}345", "123${c}45", VimStateMachine.Mode.INSERT, VimStateMachine.SubMode.NONE
     )
   }
 
@@ -109,58 +109,58 @@ class ChangeActionTest : VimTestCase() {
   fun testInsertSingleCommand() {
     doTest(
       listOf("i", "def", "<C-O>", "d2h", "x"),
-      "abc$c.\n", "abcdx.\n", CommandState.Mode.INSERT, CommandState.SubMode.NONE
+      "abc$c.\n", "abcdx.\n", VimStateMachine.Mode.INSERT, VimStateMachine.SubMode.NONE
     )
   }
 
   // VIM-321 |d| |count|
   fun testDeleteEmptyRange() {
-    doTest("d0", "${c}hello\n", "hello\n", CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest("d0", "${c}hello\n", "hello\n", VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // VIM-157 |~|
   fun testToggleCharCase() {
-    doTest("~~", "${c}hello world\n", "HEllo world\n", CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest("~~", "${c}hello world\n", "HEllo world\n", VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // VIM-157 |~|
   fun testToggleCharCaseLineEnd() {
-    doTest("~~", "hello wor${c}ld\n", "hello worLD\n", CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest("~~", "hello wor${c}ld\n", "hello worLD\n", VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   fun testToggleCaseMotion() {
-    doTest("g~w", "${c}FooBar Baz\n", "fOObAR Baz\n", CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest("g~w", "${c}FooBar Baz\n", "fOObAR Baz\n", VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   fun testChangeUpperCase() {
     doTest(
-      "gUw", "${c}FooBar Baz\n", "FOOBAR Baz\n", CommandState.Mode.COMMAND,
-      CommandState.SubMode.NONE
+      "gUw", "${c}FooBar Baz\n", "FOOBAR Baz\n", VimStateMachine.Mode.COMMAND,
+      VimStateMachine.SubMode.NONE
     )
   }
 
   fun testChangeLowerCase() {
-    doTest("guw", "${c}FooBar Baz\n", "foobar Baz\n", CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest("guw", "${c}FooBar Baz\n", "foobar Baz\n", VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   fun testToggleCaseVisual() {
     doTest(
-      "ve~", "${c}FooBar Baz\n", "fOObAR Baz\n", CommandState.Mode.COMMAND,
-      CommandState.SubMode.NONE
+      "ve~", "${c}FooBar Baz\n", "fOObAR Baz\n", VimStateMachine.Mode.COMMAND,
+      VimStateMachine.SubMode.NONE
     )
   }
 
   fun testChangeUpperCaseVisual() {
     doTest(
-      "veU", "${c}FooBar Baz\n", "FOOBAR Baz\n", CommandState.Mode.COMMAND,
-      CommandState.SubMode.NONE
+      "veU", "${c}FooBar Baz\n", "FOOBAR Baz\n", VimStateMachine.Mode.COMMAND,
+      VimStateMachine.SubMode.NONE
     )
   }
 
   fun testChangeLowerCaseVisual() {
     doTest(
-      "veu", "${c}FooBar Baz\n", "foobar Baz\n", CommandState.Mode.COMMAND,
-      CommandState.SubMode.NONE
+      "veu", "${c}FooBar Baz\n", "foobar Baz\n", VimStateMachine.Mode.COMMAND,
+      VimStateMachine.SubMode.NONE
     )
   }
 
@@ -180,7 +180,7 @@ class ChangeActionTest : VimTestCase() {
    four
    
       """.trimIndent(),
-      CommandState.Mode.INSERT, CommandState.SubMode.NONE
+      VimStateMachine.Mode.INSERT, VimStateMachine.SubMode.NONE
     )
   }
 
@@ -198,7 +198,7 @@ class ChangeActionTest : VimTestCase() {
         
         
       """.trimIndent(),
-      CommandState.Mode.COMMAND, CommandState.SubMode.NONE
+      VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE
     )
     assertOffset(4)
   }
@@ -217,8 +217,8 @@ class ChangeActionTest : VimTestCase() {
    three
    
       """.trimIndent(),
-      CommandState.Mode.COMMAND,
-      CommandState.SubMode.NONE
+      VimStateMachine.Mode.COMMAND,
+      VimStateMachine.SubMode.NONE
     )
   }
 
@@ -238,7 +238,7 @@ class ChangeActionTest : VimTestCase() {
    three
    
       """.trimIndent(),
-      CommandState.Mode.COMMAND, CommandState.SubMode.NONE
+      VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE
     )
   }
 
@@ -252,7 +252,7 @@ class ChangeActionTest : VimTestCase() {
       """one 
  three
 """,
-      CommandState.Mode.COMMAND, CommandState.SubMode.NONE
+      VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE
     )
     assertOffset(3)
   }
@@ -266,16 +266,16 @@ class ChangeActionTest : VimTestCase() {
    three four
    
       """.trimIndent(),
-      "one four\n", CommandState.Mode.COMMAND,
-      CommandState.SubMode.NONE
+      "one four\n", VimStateMachine.Mode.COMMAND,
+      VimStateMachine.SubMode.NONE
     )
   }
 
   // VIM-1380 |d| |w| |count|
   fun testDeleteTwoWordsAtLastChar() {
     doTest(
-      "d2w", "on${c}e two three\n", "on${c}three\n", CommandState.Mode.COMMAND,
-      CommandState.SubMode.NONE
+      "d2w", "on${c}e two three\n", "on${c}three\n", VimStateMachine.Mode.COMMAND,
+      VimStateMachine.SubMode.NONE
     )
   }
 
@@ -289,8 +289,8 @@ class ChangeActionTest : VimTestCase() {
       """foo
   , baz
 """,
-      CommandState.Mode.COMMAND,
-      CommandState.SubMode.NONE
+      VimStateMachine.Mode.COMMAND,
+      VimStateMachine.SubMode.NONE
     )
   }
 
@@ -308,8 +308,8 @@ class ChangeActionTest : VimTestCase() {
    baz
    
       """.trimIndent(),
-      CommandState.Mode.COMMAND,
-      CommandState.SubMode.NONE
+      VimStateMachine.Mode.COMMAND,
+      VimStateMachine.SubMode.NONE
     )
   }
 
@@ -327,7 +327,7 @@ class ChangeActionTest : VimTestCase() {
         bar
         
       """.trimIndent(),
-      CommandState.Mode.COMMAND, CommandState.SubMode.NONE
+      VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE
     )
     assertOffset(1)
   }
@@ -341,7 +341,7 @@ class ChangeActionTest : VimTestCase() {
    two
    
       """.trimIndent(),
-      "two\n", CommandState.Mode.COMMAND, CommandState.SubMode.NONE
+      "two\n", VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE
     )
   }
 
@@ -349,8 +349,8 @@ class ChangeActionTest : VimTestCase() {
   fun testInsertFromRegister() {
     setRegister('a', "World")
     doTest(
-      listOf("A", ", ", "<C-R>", "a", "!"), "${c}Hello\n", "Hello, World!\n", CommandState.Mode.INSERT,
-      CommandState.SubMode.NONE
+      listOf("A", ", ", "<C-R>", "a", "!"), "${c}Hello\n", "Hello, World!\n", VimStateMachine.Mode.INSERT,
+      VimStateMachine.SubMode.NONE
     )
   }
 
@@ -358,7 +358,7 @@ class ChangeActionTest : VimTestCase() {
   fun testInsertNewLineAboveFirstLine() {
     doTest(
       listOf("O", "bar"),
-      "fo${c}o\n", "bar\nfoo\n", CommandState.Mode.INSERT, CommandState.SubMode.NONE
+      "fo${c}o\n", "bar\nfoo\n", VimStateMachine.Mode.INSERT, VimStateMachine.SubMode.NONE
     )
   }
 
@@ -366,7 +366,7 @@ class ChangeActionTest : VimTestCase() {
   fun testVisualSelectionRightMargin() {
     doTest(
       listOf("v", "k\$d"),
-      "foo\n${c}bar\n", "fooar\n", CommandState.Mode.COMMAND, CommandState.SubMode.NONE
+      "foo\n${c}bar\n", "fooar\n", VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE
     )
   }
 
@@ -388,7 +388,7 @@ class ChangeActionTest : VimTestCase() {
         quux
         
       """.trimIndent(),
-      CommandState.Mode.COMMAND, CommandState.SubMode.NONE
+      VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE
     )
   }
 
@@ -409,7 +409,7 @@ class ChangeActionTest : VimTestCase() {
         quux
         
       """.trimIndent(),
-      CommandState.Mode.COMMAND, CommandState.SubMode.NONE
+      VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE
     )
   }
 
@@ -424,7 +424,7 @@ quux
       """    a 1 b 2 c 3
 quux
 """,
-      CommandState.Mode.COMMAND, CommandState.SubMode.NONE
+      VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE
     )
   }
 
@@ -439,7 +439,7 @@ quux
       """    a 1    b 2    c 3
 quux
 """,
-      CommandState.Mode.COMMAND, CommandState.SubMode.NONE
+      VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE
     )
   }
 
@@ -451,7 +451,7 @@ quux
         
         bar
       """.trimIndent(),
-      "foo bar", CommandState.Mode.COMMAND, CommandState.SubMode.NONE
+      "foo bar", VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE
     )
   }
 
@@ -462,7 +462,7 @@ quux
         foo  
         bar
       """.trimIndent(),
-      "foo  bar", CommandState.Mode.COMMAND, CommandState.SubMode.NONE
+      "foo  bar", VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE
     )
   }
 
@@ -477,7 +477,7 @@ quux
       """    a 1 b 2 c 3
 quux
 """,
-      CommandState.Mode.COMMAND, CommandState.SubMode.NONE
+      VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE
     )
   }
 
@@ -492,14 +492,14 @@ quux
       """    a 1    b 2    c 3
 quux
 """,
-      CommandState.Mode.COMMAND, CommandState.SubMode.NONE
+      VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE
     )
   }
 
   fun testDeleteCharVisualBlockOnLastCharOfLine() {
     doTest(
       listOf("<C-V>", "x"),
-      "fo${c}o\n", "fo\n", CommandState.Mode.COMMAND, CommandState.SubMode.NONE
+      "fo${c}o\n", "fo\n", VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE
     )
   }
 
@@ -509,7 +509,7 @@ quux
     }
     doTest(
       listOf("<C-V>", "j", "x"),
-      "\n\n", "\n\n", CommandState.Mode.COMMAND, CommandState.SubMode.NONE
+      "\n\n", "\n\n", VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE
     )
   }
 
@@ -529,7 +529,7 @@ quux
         br
         
       """.trimIndent(),
-      CommandState.Mode.COMMAND, CommandState.SubMode.NONE
+      VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE
     )
   }
 
@@ -550,7 +550,7 @@ quux
         br
         
       """.trimIndent(),
-      CommandState.Mode.COMMAND, CommandState.SubMode.NONE
+      VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE
     )
   }
 
@@ -575,18 +575,18 @@ quux
 
   // |r|
   fun testReplaceOneChar() {
-    doTest("rx", "b${c}ar\n", "b${c}xr\n", CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest("rx", "b${c}ar\n", "b${c}xr\n", VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // |r|
   @VimBehaviorDiffers(originalVimAfter = "foXX${c}Xr\n")
   fun testReplaceMultipleCharsWithCount() {
-    doTest("3rX", "fo${c}obar\n", "fo${c}XXXr\n", CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest("3rX", "fo${c}obar\n", "fo${c}XXXr\n", VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // |r|
   fun testReplaceMultipleCharsWithCountPastEndOfLine() {
-    doTest("6rX", "fo${c}obar\n", "fo${c}obar\n", CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest("6rX", "fo${c}obar\n", "fo${c}obar\n", VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // |r|
@@ -604,7 +604,7 @@ quux
         ZZZZZz
         
       """.trimIndent(),
-      CommandState.Mode.COMMAND, CommandState.SubMode.NONE
+      VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE
     )
   }
 
@@ -619,7 +619,7 @@ foobaz
     bar
 foobaz
 """,
-      CommandState.Mode.COMMAND, CommandState.SubMode.NONE
+      VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE
     )
   }
 
@@ -635,20 +635,20 @@ foobaz
     r
 foobaz
 """,
-      CommandState.Mode.COMMAND, CommandState.SubMode.NONE
+      VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE
     )
   }
 
   // |s|
   fun testReplaceOneCharWithText() {
-    doTest("sxy<Esc>", "b${c}ar\n", "bx${c}yr\n", CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest("sxy<Esc>", "b${c}ar\n", "bx${c}yr\n", VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // |s|
   fun testReplaceMultipleCharsWithTextWithCount() {
     doTest(
       "3sxy<Esc>",
-      "fo${c}obar\n", "fox${c}yr\n", CommandState.Mode.COMMAND, CommandState.SubMode.NONE
+      "fo${c}obar\n", "fox${c}yr\n", VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE
     )
   }
 
@@ -666,13 +666,13 @@ foobaz
         biff
         
       """.trimIndent(),
-      CommandState.Mode.COMMAND, CommandState.SubMode.NONE
+      VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE
     )
   }
 
   // |R|
   fun testReplaceMode() {
-    doTest("Rbaz<Esc>", "foo${c}bar\n", "fooba${c}z\n", CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest("Rbaz<Esc>", "foo${c}bar\n", "fooba${c}z\n", VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // |R| |i_<Insert>|
@@ -680,7 +680,7 @@ foobaz
   fun testReplaceModeSwitchToInsertModeAndBack() {
     doTest(
       "RXXX<Ins>YYY<Ins>ZZZ<Esc>",
-      "aaa${c}bbbcccddd\n", "aaaXXXYYYZZ${c}Zddd\n", CommandState.Mode.COMMAND, CommandState.SubMode.NONE
+      "aaa${c}bbbcccddd\n", "aaaXXXYYYZZ${c}Zddd\n", VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE
     )
   }
 
@@ -689,8 +689,8 @@ foobaz
   fun testInsertModeSwitchToReplaceModeAndBack() {
     doTest(
       "iXXX<Ins>YYY<Ins>ZZZ<Esc>",
-      "aaa${c}bbbcccddd\n", "aaaXXXYYYZZ${c}Zcccddd\n", CommandState.Mode.COMMAND,
-      CommandState.SubMode.NONE
+      "aaa${c}bbbcccddd\n", "aaaXXXYYYZZ${c}Zcccddd\n", VimStateMachine.Mode.COMMAND,
+      VimStateMachine.SubMode.NONE
     )
   }
 
@@ -709,7 +709,7 @@ foobaz
         fo${c}o quux
         
       """.trimIndent(),
-      CommandState.Mode.COMMAND, CommandState.SubMode.NONE
+      VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE
     )
   }
 
@@ -917,17 +917,17 @@ and some text after"""
   fun testRepeatChangeWordDoesNotBreakNextRepeatFind() {
     doTest(
       "fXcfYPATATA<Esc>fX.;.", "${c}aaaaXBBBBYaaaaaaaXBBBBYaaaaaaXBBBBYaaaaaaaa\n",
-      "aaaaPATATAaaaaaaaPATATAaaaaaaPATATAaaaaaaaa\n", CommandState.Mode.COMMAND, CommandState.SubMode.NONE
+      "aaaaPATATAaaaaaaaPATATAaaaaaaPATATAaaaaaaaa\n", VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE
     )
   }
 
   fun testRepeatReplace() {
     configureByText("${c}foobarbaz spam\n")
     typeText(injector.parser.parseKeys("R"))
-    assertMode(CommandState.Mode.REPLACE)
+    assertMode(VimStateMachine.Mode.REPLACE)
     typeText(injector.parser.parseKeys("FOO" + "<Esc>" + "l" + "2."))
     assertState("FOOFOOFO${c}O spam\n")
-    assertMode(CommandState.Mode.COMMAND)
+    assertMode(VimStateMachine.Mode.COMMAND)
   }
 
   fun testDownMovementAfterDeletionToStart() {
@@ -941,8 +941,8 @@ and some text after"""
         psum dolor sit amet
         ${c}lorem ipsum dolor sit amet
       """.trimIndent(),
-      CommandState.Mode.COMMAND,
-      CommandState.SubMode.NONE
+      VimStateMachine.Mode.COMMAND,
+      VimStateMachine.SubMode.NONE
     )
   }
 
@@ -957,8 +957,8 @@ and some text after"""
         ipsum dolor sit amet
         ${c}lorem ipsum dolor sit amet
       """.trimIndent(),
-      CommandState.Mode.COMMAND,
-      CommandState.SubMode.NONE
+      VimStateMachine.Mode.COMMAND,
+      VimStateMachine.SubMode.NONE
     )
   }
 
@@ -973,8 +973,8 @@ and some text after"""
         ipsum dolor sit amet
         ${c}lorem ipsum dolor sit amet
       """.trimIndent(),
-      CommandState.Mode.COMMAND,
-      CommandState.SubMode.NONE
+      VimStateMachine.Mode.COMMAND,
+      VimStateMachine.SubMode.NONE
     )
   }
 
@@ -989,8 +989,8 @@ and some text after"""
         ipsum dolor sit amet
         ${c}lorem ipsum dolor sit amet
       """.trimIndent(),
-      CommandState.Mode.COMMAND,
-      CommandState.SubMode.NONE
+      VimStateMachine.Mode.COMMAND,
+      VimStateMachine.SubMode.NONE
     )
   }
 
@@ -1005,8 +1005,8 @@ and some text after"""
         ${c}lorem ipsum dolor sit amet
         psum dolor sit amet
       """.trimIndent(),
-      CommandState.Mode.COMMAND,
-      CommandState.SubMode.NONE
+      VimStateMachine.Mode.COMMAND,
+      VimStateMachine.SubMode.NONE
     )
   }
 
@@ -1021,8 +1021,8 @@ and some text after"""
         ${c}lorem ipsum dolor sit amet
         ipsum dolor sit amet
       """.trimIndent(),
-      CommandState.Mode.COMMAND,
-      CommandState.SubMode.NONE
+      VimStateMachine.Mode.COMMAND,
+      VimStateMachine.SubMode.NONE
     )
   }
 
@@ -1040,7 +1040,7 @@ and some text after"""
         ${c}lorem ipsum dolor sit amet
         
       """.trimIndent(),
-      CommandState.Mode.COMMAND, CommandState.SubMode.NONE
+      VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE
     )
   }
 
@@ -1059,7 +1059,7 @@ and some text after"""
         gaganis ${c}gaganis gaganis
         
       """.trimIndent(),
-      CommandState.Mode.COMMAND, CommandState.SubMode.NONE
+      VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE
     )
   }
 
@@ -1075,7 +1075,7 @@ and some text after"""
         line 1
         ${c}line 3
       """.trimIndent(),
-      CommandState.Mode.COMMAND, CommandState.SubMode.NONE
+      VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE
     )
   }
 }

src/test/java/org/jetbrains/plugins/ideavim/action/ChangeNumberActionTest.java

@@ -19,7 +19,7 @@
 package org.jetbrains.plugins.ideavim.action;
 
 import com.google.common.collect.Lists;
-import com.maddyhome.idea.vim.command.CommandState;
+import com.maddyhome.idea.vim.command.VimStateMachine;
 import org.jetbrains.plugins.ideavim.VimTestCase;
 
 /**
@@ -27,128 +27,128 @@ import org.jetbrains.plugins.ideavim.VimTestCase;
  */
 public class ChangeNumberActionTest extends VimTestCase {
   public void testIncrementDecimalZero() {
-    doTest("<C-A>", "0", "1", CommandState.Mode.COMMAND, CommandState.SubMode.NONE);
+    doTest("<C-A>", "0", "1", VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE);
   }
 
   public void testIncrementHexZero() {
-    doTest("<C-A>", "0x0", "0x1", CommandState.Mode.COMMAND, CommandState.SubMode.NONE);
+    doTest("<C-A>", "0x0", "0x1", VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE);
   }
 
   public void testDecrementZero() {
-    doTest("<C-X>", "0", "-1", CommandState.Mode.COMMAND, CommandState.SubMode.NONE);
+    doTest("<C-X>", "0", "-1", VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE);
   }
 
   public void testIncrementDecimal() {
-    doTest("<C-A>", "199", "200", CommandState.Mode.COMMAND, CommandState.SubMode.NONE);
+    doTest("<C-A>", "199", "200", VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE);
   }
 
   public void testDecrementDecimal() {
-    doTest("<C-X>", "1000", "999", CommandState.Mode.COMMAND, CommandState.SubMode.NONE);
+    doTest("<C-X>", "1000", "999", VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE);
   }
 
   public void testIncrementOctal() {
-    doTest(Lists.newArrayList(":set nf=octal<Enter>", "<C-A>"), "0477", "0500", CommandState.Mode.COMMAND,
-           CommandState.SubMode.NONE);
+    doTest(Lists.newArrayList(":set nf=octal<Enter>", "<C-A>"), "0477", "0500", VimStateMachine.Mode.COMMAND,
+           VimStateMachine.SubMode.NONE);
   }
 
   public void testDecrementOctal() {
-    doTest(Lists.newArrayList(":set nf=octal<Enter>", "<C-X>"), "010", "007", CommandState.Mode.COMMAND,
-           CommandState.SubMode.NONE);
+    doTest(Lists.newArrayList(":set nf=octal<Enter>", "<C-X>"), "010", "007", VimStateMachine.Mode.COMMAND,
+           VimStateMachine.SubMode.NONE);
   }
 
   public void testIncrementHex() {
-    doTest("<C-A>", "0xff", "0x100", CommandState.Mode.COMMAND, CommandState.SubMode.NONE);
+    doTest("<C-A>", "0xff", "0x100", VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE);
   }
 
   public void testDecrementHex() {
-    doTest("<C-X>", "0xa100", "0xa0ff", CommandState.Mode.COMMAND, CommandState.SubMode.NONE);
+    doTest("<C-X>", "0xa100", "0xa0ff", VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE);
   }
 
   public void testIncrementNegativeDecimal() {
-    doTest("<C-A>", "-199", "-198", CommandState.Mode.COMMAND, CommandState.SubMode.NONE);
+    doTest("<C-A>", "-199", "-198", VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE);
   }
 
   public void testDecrementNegativeDecimal() {
-    doTest("<C-X>", "-1000", "-1001", CommandState.Mode.COMMAND, CommandState.SubMode.NONE);
+    doTest("<C-X>", "-1000", "-1001", VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE);
   }
 
   public void testIncrementNegativeOctal() {
     // Minus isn't processed
-    doTest(Lists.newArrayList(":set nf=octal<Enter>", "<C-A>"), "-0477", "-0500", CommandState.Mode.COMMAND,
-           CommandState.SubMode.NONE);
+    doTest(Lists.newArrayList(":set nf=octal<Enter>", "<C-A>"), "-0477", "-0500", VimStateMachine.Mode.COMMAND,
+           VimStateMachine.SubMode.NONE);
   }
 
   public void testDecrementNegativeOctal() {
     // Minus isn't processed
-    doTest(Lists.newArrayList(":set nf=octal<Enter>", "<C-X>"), "-010", "-007", CommandState.Mode.COMMAND,
-           CommandState.SubMode.NONE);
+    doTest(Lists.newArrayList(":set nf=octal<Enter>", "<C-X>"), "-010", "-007", VimStateMachine.Mode.COMMAND,
+           VimStateMachine.SubMode.NONE);
   }
 
   public void testIncrementNegativeHex() {
-    doTest("<C-A>", "-0xff", "-0x100", CommandState.Mode.COMMAND, CommandState.SubMode.NONE);
+    doTest("<C-A>", "-0xff", "-0x100", VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE);
   }
 
   public void testDecrementNegativeHex() {
-    doTest("<C-X>", "-0xa100", "-0xa0ff", CommandState.Mode.COMMAND, CommandState.SubMode.NONE);
+    doTest("<C-X>", "-0xa100", "-0xa0ff", VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE);
   }
 
   public void testIncrementWithCount() {
-    doTest("123<C-A>", "456", "579", CommandState.Mode.COMMAND, CommandState.SubMode.NONE);
+    doTest("123<C-A>", "456", "579", VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE);
   }
 
   public void testDecrementWithCount() {
-    doTest("200<C-X>", "100", "-100", CommandState.Mode.COMMAND, CommandState.SubMode.NONE);
+    doTest("200<C-X>", "100", "-100", VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE);
   }
 
   public void testIncrementAlphaWithoutNumberFormatAlpha() {
-    doTest("<C-A>", "foo", "foo", CommandState.Mode.COMMAND, CommandState.SubMode.NONE);
+    doTest("<C-A>", "foo", "foo", VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE);
   }
 
   public void testIncrementAlphaWithNumberFormatAlpha() {
-    doTest(Lists.newArrayList(":set nf=alpha<Enter>", "<C-A>"), "foo", "goo", CommandState.Mode.COMMAND,
-           CommandState.SubMode.NONE);
+    doTest(Lists.newArrayList(":set nf=alpha<Enter>", "<C-A>"), "foo", "goo", VimStateMachine.Mode.COMMAND,
+           VimStateMachine.SubMode.NONE);
   }
 
   public void testIncrementZWithNumberFormatAlpha() {
-    doTest(Lists.newArrayList(":set nf=alpha<Enter>", "<C-A>"), "zzz", "zzz", CommandState.Mode.COMMAND,
-           CommandState.SubMode.NONE);
+    doTest(Lists.newArrayList(":set nf=alpha<Enter>", "<C-A>"), "zzz", "zzz", VimStateMachine.Mode.COMMAND,
+           VimStateMachine.SubMode.NONE);
   }
 
   public void testIncrementXInHexNumberWithNumberFormatAlphaButNotHex() {
-    doTest(Lists.newArrayList(":set nf=alpha<Enter>", "<C-A>"), "0<caret>x1", "0y1", CommandState.Mode.COMMAND,
-           CommandState.SubMode.NONE);
+    doTest(Lists.newArrayList(":set nf=alpha<Enter>", "<C-A>"), "0<caret>x1", "0y1", VimStateMachine.Mode.COMMAND,
+           VimStateMachine.SubMode.NONE);
   }
 
   public void testIncrementXInHexNumberWithNumberFormatHexAlpha() {
-    doTest(Lists.newArrayList(":set nf=alpha,hex<Enter>", "<C-A>"), "0<caret>x1", "0x2", CommandState.Mode.COMMAND,
-           CommandState.SubMode.NONE);
+    doTest(Lists.newArrayList(":set nf=alpha,hex<Enter>", "<C-A>"), "0<caret>x1", "0x2", VimStateMachine.Mode.COMMAND,
+           VimStateMachine.SubMode.NONE);
   }
 
   public void testIncrementHexNumberWithoutNumberFormatHex() {
-    doTest(Lists.newArrayList(":set nf=octal<Enter>", "<C-A>"), "0x42", "1x42", CommandState.Mode.COMMAND,
-           CommandState.SubMode.NONE);
+    doTest(Lists.newArrayList(":set nf=octal<Enter>", "<C-A>"), "0x42", "1x42", VimStateMachine.Mode.COMMAND,
+           VimStateMachine.SubMode.NONE);
   }
 
   public void testIncrementOctalNumberWithoutNumberFormatOctal() {
-    doTest(Lists.newArrayList(":set nf=hex<Enter>", "<C-A>"), "077", "078", CommandState.Mode.COMMAND,
-           CommandState.SubMode.NONE);
+    doTest(Lists.newArrayList(":set nf=hex<Enter>", "<C-A>"), "077", "078", VimStateMachine.Mode.COMMAND,
+           VimStateMachine.SubMode.NONE);
   }
 
   public void testIncrementNegativeOctalNumberWithoutNumberFormatOctal() {
-    doTest(Lists.newArrayList(":set nf=hex<Enter>", "<C-A>"), "-077", "-076", CommandState.Mode.COMMAND,
-           CommandState.SubMode.NONE);
+    doTest(Lists.newArrayList(":set nf=hex<Enter>", "<C-A>"), "-077", "-076", VimStateMachine.Mode.COMMAND,
+           VimStateMachine.SubMode.NONE);
   }
 
   public void testIncrementHexPreservesCaseOfX() {
-    doTest("<C-A>", "0X88", "0X89", CommandState.Mode.COMMAND, CommandState.SubMode.NONE);
+    doTest("<C-A>", "0X88", "0X89", VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE);
   }
 
   public void testIncrementHexTakesCaseFromLastLetter() {
-    doTest("<C-A>", "0xaB0", "0xAB1", CommandState.Mode.COMMAND, CommandState.SubMode.NONE);
+    doTest("<C-A>", "0xaB0", "0xAB1", VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE);
   }
 
   public void testIncrementLocatesNumberOnTheSameLine() {
-    doTest("<C-A>", "foo ->* bar 123\n", "foo ->* bar 12<caret>4\n", CommandState.Mode.COMMAND,
-           CommandState.SubMode.NONE);
+    doTest("<C-A>", "foo ->* bar 123\n", "foo ->* bar 12<caret>4\n", VimStateMachine.Mode.COMMAND,
+           VimStateMachine.SubMode.NONE);
   }
 }

src/test/java/org/jetbrains/plugins/ideavim/action/CopyActionTest.java

@@ -21,7 +21,7 @@ package org.jetbrains.plugins.ideavim.action;
 import com.intellij.openapi.editor.Editor;
 import com.maddyhome.idea.vim.VimPlugin;
 import com.maddyhome.idea.vim.api.VimInjectorKt;
-import com.maddyhome.idea.vim.command.CommandState;
+import com.maddyhome.idea.vim.command.VimStateMachine;
 import com.maddyhome.idea.vim.register.Register;
 import com.maddyhome.idea.vim.ex.ExException;
 import com.maddyhome.idea.vim.vimscript.model.datatypes.VimString;
@@ -129,7 +129,7 @@ public class CopyActionTest extends VimTestCase {
   public void testStateAfterYankVisualBlock() {
     typeTextInFile(VimInjectorKt.getInjector().getParser().parseKeys("<C-V>" + "jl" + "y"), "<caret>foo\n" + "bar\n");
     assertOffset(0);
-    assertMode(CommandState.Mode.COMMAND);
+    assertMode(VimStateMachine.Mode.COMMAND);
     assertSelection(null);
   }
 

src/test/java/org/jetbrains/plugins/ideavim/action/GuardedBlocksTest.kt

@@ -19,7 +19,7 @@
 package org.jetbrains.plugins.ideavim.action
 
 import com.maddyhome.idea.vim.api.injector
-import com.maddyhome.idea.vim.command.CommandState
+import com.maddyhome.idea.vim.command.VimStateMachine
 import com.maddyhome.idea.vim.helper.experimentalApi
 import org.jetbrains.plugins.ideavim.SkipNeovimReason
 import org.jetbrains.plugins.ideavim.TestWithoutNeovim
@@ -154,7 +154,7 @@ class GuardedBlocksTest : VimTestCase() {
       1234567890
       """.trimIndent()
     )
-    assertMode(CommandState.Mode.INSERT)
+    assertMode(VimStateMachine.Mode.INSERT)
   }
 
   @TestWithoutNeovim(reason = SkipNeovimReason.GUARDED_BLOCKS)
@@ -176,7 +176,7 @@ class GuardedBlocksTest : VimTestCase() {
       1234567890
       """.trimIndent()
     )
-    assertMode(CommandState.Mode.INSERT)
+    assertMode(VimStateMachine.Mode.INSERT)
   }
 
   @TestWithoutNeovim(reason = SkipNeovimReason.GUARDED_BLOCKS)
@@ -198,7 +198,7 @@ class GuardedBlocksTest : VimTestCase() {
       1234567890
       """.trimIndent()
     )
-    assertMode(CommandState.Mode.INSERT)
+    assertMode(VimStateMachine.Mode.INSERT)
   }
 
 /*
@@ -255,7 +255,7 @@ class GuardedBlocksTest : VimTestCase() {
       $c
       """.trimIndent()
     )
-    assertMode(CommandState.Mode.INSERT)
+    assertMode(VimStateMachine.Mode.INSERT)
   }
 
   @TestWithoutNeovim(reason = SkipNeovimReason.GUARDED_BLOCKS)
@@ -274,7 +274,7 @@ class GuardedBlocksTest : VimTestCase() {
       1234567890
       """.trimIndent()
     )
-    assertMode(CommandState.Mode.COMMAND)
+    assertMode(VimStateMachine.Mode.COMMAND)
   }
 
   @TestWithoutNeovim(reason = SkipNeovimReason.GUARDED_BLOCKS)
@@ -294,7 +294,7 @@ class GuardedBlocksTest : VimTestCase() {
       1234567890
       """.trimIndent()
     )
-    assertMode(CommandState.Mode.COMMAND)
+    assertMode(VimStateMachine.Mode.COMMAND)
   }
 
   @TestWithoutNeovim(reason = SkipNeovimReason.GUARDED_BLOCKS)
@@ -315,7 +315,7 @@ class GuardedBlocksTest : VimTestCase() {
       1234567890
       """.trimIndent()
     )
-    assertMode(CommandState.Mode.INSERT)
+    assertMode(VimStateMachine.Mode.INSERT)
   }
 
   @TestWithoutNeovim(reason = SkipNeovimReason.GUARDED_BLOCKS)
@@ -335,6 +335,6 @@ class GuardedBlocksTest : VimTestCase() {
       1234567890
       """.trimIndent()
     )
-    assertMode(CommandState.Mode.COMMAND)
+    assertMode(VimStateMachine.Mode.COMMAND)
   }
 }

src/test/java/org/jetbrains/plugins/ideavim/action/MacroActionTest.kt

@@ -20,7 +20,7 @@ package org.jetbrains.plugins.ideavim.action
 import com.intellij.testFramework.PlatformTestUtil
 import com.maddyhome.idea.vim.VimPlugin
 import com.maddyhome.idea.vim.api.injector
-import com.maddyhome.idea.vim.helper.commandState
+import com.maddyhome.idea.vim.helper.vimStateMachine
 import com.maddyhome.idea.vim.newapi.vim
 import com.maddyhome.idea.vim.options.OptionConstants
 import com.maddyhome.idea.vim.options.OptionScope
@@ -36,7 +36,7 @@ class MacroActionTest : VimTestCase() {
   // |q|
   fun testRecordMacro() {
     val editor = typeTextInFile(injector.parser.parseKeys("qa" + "3l" + "q"), "on<caret>e two three\n")
-    val commandState = editor.vim.commandState
+    val commandState = editor.vim.vimStateMachine
     assertFalse(commandState.isRecording)
     val registerGroup = VimPlugin.getRegister()
     val register = registerGroup.getRegister('a')

src/test/java/org/jetbrains/plugins/ideavim/action/MarkTest.java

@@ -21,7 +21,7 @@ package org.jetbrains.plugins.ideavim.action;
 import com.google.common.collect.Lists;
 import com.maddyhome.idea.vim.VimPlugin;
 import com.maddyhome.idea.vim.api.VimInjectorKt;
-import com.maddyhome.idea.vim.command.CommandState;
+import com.maddyhome.idea.vim.command.VimStateMachine;
 import com.maddyhome.idea.vim.mark.Mark;
 import com.maddyhome.idea.vim.newapi.IjVimEditor;
 import org.jetbrains.plugins.ideavim.SkipNeovimReason;
@@ -148,6 +148,6 @@ public class MarkTest extends VimTestCase {
   // |i| |`]|
   public void testGotoLastChangePositionEnd() {
     doTest(Lists.newArrayList("yiw", "P", "gg", "`]"), "one two\n" + "<caret>three\n" + "four five\n",
-           "one two\n" + "thre<caret>ethree\n" + "four five\n", CommandState.Mode.COMMAND, CommandState.SubMode.NONE);
+           "one two\n" + "thre<caret>ethree\n" + "four five\n", VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE);
   }
 }

src/test/java/org/jetbrains/plugins/ideavim/action/MotionActionTest.kt

@@ -19,8 +19,8 @@ package org.jetbrains.plugins.ideavim.action
 
 import com.maddyhome.idea.vim.VimPlugin
 import com.maddyhome.idea.vim.api.injector
-import com.maddyhome.idea.vim.command.CommandState
-import com.maddyhome.idea.vim.helper.vimCommandState
+import com.maddyhome.idea.vim.command.VimStateMachine
+import com.maddyhome.idea.vim.helper.vimStateMachine
 import org.jetbrains.plugins.ideavim.SkipNeovimReason
 import org.jetbrains.plugins.ideavim.TestWithoutNeovim
 import org.jetbrains.plugins.ideavim.VimTestCase
@@ -31,7 +31,7 @@ import org.jetbrains.plugins.ideavim.VimTestCase
 class MotionActionTest : VimTestCase() {
   fun testDoubleToggleVisual() {
     val contents = "one tw${c}o\n"
-    doTest("vv", contents, contents, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest("vv", contents, contents, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // VIM-198 |v_iw|
@@ -41,8 +41,8 @@ class MotionActionTest : VimTestCase() {
       "viw",
       fileContents,
       "one ${s}two${se}\n",
-      CommandState.Mode.VISUAL,
-      CommandState.SubMode.VISUAL_CHARACTER
+      VimStateMachine.Mode.VISUAL,
+      VimStateMachine.SubMode.VISUAL_CHARACTER
     )
   }
 
@@ -50,7 +50,7 @@ class MotionActionTest : VimTestCase() {
   fun testVisualMotionInnerBigWord() {
     val fileContents = "one tw${c}o.three four\n"
     val fileContentsAfter = "one ${s}two.thre${c}e$se four\n"
-    doTest("viW", fileContents, fileContentsAfter, CommandState.Mode.VISUAL, CommandState.SubMode.VISUAL_CHARACTER)
+    doTest("viW", fileContents, fileContentsAfter, VimStateMachine.Mode.VISUAL, VimStateMachine.SubMode.VISUAL_CHARACTER)
     assertSelection("two.three")
   }
 
@@ -60,7 +60,7 @@ class MotionActionTest : VimTestCase() {
      three
      
     """.trimIndent()
-    doTest(listOf("f", "<Esc>", "<Esc>"), content, content, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(listOf("f", "<Esc>", "<Esc>"), content, content, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
     assertPluginError(true)
     assertOffset(2)
   }
@@ -71,9 +71,9 @@ class MotionActionTest : VimTestCase() {
      three
      
     """.trimIndent()
-    doTest(listOf("12", "<Esc>"), content, content, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(listOf("12", "<Esc>"), content, content, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
     assertPluginError(false)
-    val vimCommandState = myFixture.editor.vimCommandState
+    val vimCommandState = myFixture.editor.vimStateMachine
     kotlin.test.assertNotNull(vimCommandState)
     assertEmpty(vimCommandState.commandBuilder.keys.toList())
   }
@@ -82,7 +82,7 @@ class MotionActionTest : VimTestCase() {
   fun testLeftRightMove() {
     val before = "on${c}e two three four five six seven\n"
     val after = "one two three ${c}four five six seven\n"
-    doTest(listOf("14l", "2h"), before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(listOf("14l", "2h"), before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // |j| |k|
@@ -101,7 +101,7 @@ class MotionActionTest : VimTestCase() {
      four
      
     """.trimIndent()
-    doTest(listOf("2j", "k"), before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(listOf("2j", "k"), before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   @TestWithoutNeovim(reason = SkipNeovimReason.UNCLEAR)
@@ -114,14 +114,14 @@ class MotionActionTest : VimTestCase() {
   fun testForwardToTab() {
     val before = "on${c}e two\tthree\nfour\n"
     val after = "one two${c}\tthree\nfour\n"
-    doTest(listOf("f<Tab>"), before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(listOf("f<Tab>"), before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   @TestWithoutNeovim(reason = SkipNeovimReason.UNCLEAR)
   fun testIllegalCharArgument() {
     typeTextInFile(injector.parser.parseKeys("f<Insert>"), "on${c}e two three four five six seven\n")
     assertOffset(2)
-    assertMode(CommandState.Mode.COMMAND)
+    assertMode(VimStateMachine.Mode.COMMAND)
   }
 
   // |F| |i_CTRL-K|
@@ -129,7 +129,7 @@ class MotionActionTest : VimTestCase() {
     val before = "Hallo, Öster${c}reich!\n"
     val after = "Hallo, ${c}Österreich!\n"
     val keys = listOf("F<C-K>O:")
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // VIM-771 |t| |;|
@@ -137,7 +137,7 @@ class MotionActionTest : VimTestCase() {
     val keys = listOf("t:;")
     val before = "$c 1:a 2:b 3:c \n"
     val after = " 1:a ${c}2:b 3:c \n"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // VIM-771 |t| |;|
@@ -145,7 +145,7 @@ class MotionActionTest : VimTestCase() {
     val keys = listOf("t:;")
     val before = "$c 1:a 2:b 3:c \n"
     val after = " 1:a ${c}2:b 3:c \n"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // VIM-771 |t| |;|
@@ -153,7 +153,7 @@ class MotionActionTest : VimTestCase() {
     val keys = listOf("t:2;")
     val before = "$c 1:a 2:b 3:c \n"
     val after = " 1:a ${c}2:b 3:c \n"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // VIM-771 |t| |;|
@@ -161,7 +161,7 @@ class MotionActionTest : VimTestCase() {
     val keys = listOf("t:3;")
     val before = "$c 1:a 2:b 3:c \n"
     val after = " 1:a 2:b ${c}3:c \n"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // VIM-771 |t| |,|
@@ -169,7 +169,7 @@ class MotionActionTest : VimTestCase() {
     val keys = listOf("t:,,")
     val before = " 1:a 2:b$c 3:c \n"
     val after = " 1:${c}a 2:b 3:c \n"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // VIM-771 |t| |,|
@@ -177,7 +177,7 @@ class MotionActionTest : VimTestCase() {
     val keys = listOf("t:,2,")
     val before = " 1:a 2:b$c 3:c \n"
     val after = " 1:${c}a 2:b 3:c \n"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // VIM-771 |t| |,|
@@ -185,7 +185,7 @@ class MotionActionTest : VimTestCase() {
     val keys = listOf("t:,3,")
     val before = " 0:_ 1:a 2:b$c 3:c \n"
     val after = " 0:${c}_ 1:a 2:b 3:c \n"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // VIM-314 |d| |v_iB|
@@ -193,7 +193,7 @@ class MotionActionTest : VimTestCase() {
     val keys = listOf("di{")
     val before = "{foo, b${c}ar, baz}\n"
     val after = "{}\n"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // VIM-314 |d| |v_iB|
@@ -201,7 +201,7 @@ class MotionActionTest : VimTestCase() {
     val keys = listOf("di{")
     val before = "{foo, ${c}\"bar\", baz}\n"
     val after = "{}\n"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // |d| |v_aB|
@@ -209,7 +209,7 @@ class MotionActionTest : VimTestCase() {
     val keys = listOf("da{")
     val before = "x = {foo, b${c}ar, baz};\n"
     val after = "x = ;\n"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // VIM-261 |c| |v_iB|
@@ -238,7 +238,7 @@ class MotionActionTest : VimTestCase() {
     val keys = listOf("daw")
     val before = "one t${c}wo three\n"
     val after = "one three\n"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // |d| |v_aW|
@@ -246,7 +246,7 @@ class MotionActionTest : VimTestCase() {
     val keys = listOf("daW")
     val before = "one \"t${c}wo\" three\n"
     val after = "one three\n"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // |d| |v_is|
@@ -254,7 +254,7 @@ class MotionActionTest : VimTestCase() {
     val keys = listOf("dis")
     val before = "Hello World! How a${c}re you? Bye.\n"
     val after = "Hello World!  Bye.\n"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // |d| |v_as|
@@ -262,7 +262,7 @@ class MotionActionTest : VimTestCase() {
     val keys = listOf("das")
     val before = "Hello World! How a${c}re you? Bye.\n"
     val after = "Hello World! Bye.\n"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // |v_as|
@@ -280,7 +280,7 @@ class MotionActionTest : VimTestCase() {
      P$c.
      
     """.trimIndent()
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // |d| |v_ip|
@@ -302,7 +302,7 @@ class MotionActionTest : VimTestCase() {
     Bye.
     
     """.trimIndent()
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // |d| |v_ap|
@@ -323,7 +323,7 @@ class MotionActionTest : VimTestCase() {
     Bye.
     
     """.trimIndent()
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // |d| |v_a]|
@@ -336,7 +336,7 @@ class MotionActionTest : VimTestCase() {
 ];
 """
     val after = "foo = ;\n"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // |d| |v_i]|
@@ -344,7 +344,7 @@ class MotionActionTest : VimTestCase() {
     val keys = listOf("di]")
     val before = "foo = [one, t${c}wo];\n"
     val after = "foo = [];\n"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // VIM-1287 |d| |v_i(|
@@ -352,7 +352,7 @@ class MotionActionTest : VimTestCase() {
     val keys = listOf("di(")
     val before = "(text \"with quotes(and ${c}braces)\")"
     val after = "(text \"with quotes()\")"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // VIM-1287 |d| |v_i{|
@@ -360,7 +360,7 @@ class MotionActionTest : VimTestCase() {
     val before = "{\"{foo, ${c}bar\", baz}}"
     val keys = listOf("di{")
     val after = "{\"{foo, ${c}bar\", baz}}"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // VIM-1287 |d| |v_i{|
@@ -368,7 +368,7 @@ class MotionActionTest : VimTestCase() {
     val before = "a{\"{foo}, ${c}bar\", baz}b}"
     val keys = listOf("di{")
     val after = "a{$c}b}"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // VIM-1008 |c| |v_i{|
@@ -376,7 +376,7 @@ class MotionActionTest : VimTestCase() {
     val before = "\"{do${c}esn't work}\""
     val keys = listOf("ci{")
     val after = "\"{$c}\""
-    doTest(keys, before, after, CommandState.Mode.INSERT, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.INSERT, VimStateMachine.SubMode.NONE)
   }
 
   // VIM-1008 |c| |v_i{|
@@ -384,7 +384,7 @@ class MotionActionTest : VimTestCase() {
     val keys = listOf("ci{")
     val before = "'{does n${c}ot work}'"
     val after = "'{$c}'"
-    doTest(keys, before, after, CommandState.Mode.INSERT, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.INSERT, VimStateMachine.SubMode.NONE)
   }
 
   // VIM-1008 |c| |v_i{|
@@ -392,7 +392,7 @@ class MotionActionTest : VimTestCase() {
     val before = "<p class=\"{{ \$ctrl.so${c}meClassName }}\"></p>"
     val keys = listOf("ci{")
     val after = "<p class=\"{{$c}}\"></p>"
-    doTest(keys, before, after, CommandState.Mode.INSERT, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.INSERT, VimStateMachine.SubMode.NONE)
   }
 
   // |d| |v_i>|
@@ -400,7 +400,7 @@ class MotionActionTest : VimTestCase() {
     val keys = listOf("di>")
     val before = "Foo<Foo, B${c}ar> bar\n"
     val after = "Foo<> bar\n"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // |d| |v_a>|
@@ -408,7 +408,7 @@ class MotionActionTest : VimTestCase() {
     val keys = listOf("da>")
     val before = "Foo<Foo, B${c}ar> bar\n"
     val after = "Foo bar\n"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // VIM-132 |d| |v_i"|
@@ -416,7 +416,7 @@ class MotionActionTest : VimTestCase() {
     val keys = listOf("di\"")
     val before = "foo = \"bar b${c}az\";\n"
     val after = "foo = \"\";\n"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // VIM-132 |d| |v_a"|
@@ -425,7 +425,7 @@ class MotionActionTest : VimTestCase() {
     val keys = listOf("da\"")
     val before = "foo = \"bar b${c}az\";\n"
     val after = "foo = ;\n"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // VIM-132 |d| |v_i"|
@@ -433,7 +433,7 @@ class MotionActionTest : VimTestCase() {
     val keys = listOf("di\"")
     val before = "foo = [\"one\", ${c}\"two\", \"three\"];\n"
     val after = "foo = [\"one\", \"\", \"three\"];\n"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // VIM-132 |d| |v_i"|
@@ -441,7 +441,7 @@ class MotionActionTest : VimTestCase() {
     val keys = listOf("di\"")
     val before = "foo = [\"one\", \"two${c}\", \"three\"];\n"
     val after = "foo = [\"one\", \"\", \"three\"];\n"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // VIM-132 |d| |v_i"|
@@ -449,7 +449,7 @@ class MotionActionTest : VimTestCase() {
     val keys = listOf("di\"")
     val before = "foo = \"fo\\\"o b${c}ar\";\n"
     val after = "foo = \"\";\n"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // VIM-132 |d| |v_i"|
@@ -457,35 +457,35 @@ class MotionActionTest : VimTestCase() {
     val keys = listOf("di\"")
     val before = "f${c}oo = [\"one\", \"two\", \"three\"];\n"
     val after = "foo = [\"\", \"two\", \"three\"];\n"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   fun testDeleteDoubleQuotedStringOddNumberOfQuotes() {
     val keys = listOf("di\"")
     val before = "abc\"def${c}\"gh\"i"
     val after = "abc\"\"gh\"i"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   fun testDeleteDoubleQuotedStringBetweenEvenNumberOfQuotes() {
     val keys = listOf("di\"")
     val before = "abc\"def\"g${c}h\"ijk\"l"
     val after = "abc\"def\"\"ijk\"l"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   fun testDeleteDoubleQuotedStringOddNumberOfQuotesOnLast() {
     val keys = listOf("di\"")
     val before = "abcdef\"gh\"ij${c}\"kl"
     val after = "abcdef\"gh\"ij\"kl"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   fun testDeleteDoubleQuotedStringEvenNumberOfQuotesOnLast() {
     val keys = listOf("di\"")
     val before = "abc\"def\"gh\"ij${c}\"kl"
     val after = "abc\"def\"gh\"\"kl"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // VIM-132 |v_i"|
@@ -493,7 +493,7 @@ class MotionActionTest : VimTestCase() {
     val keys = listOf("vi\"")
     val before = "foo = [\"o${c}ne\", \"two\"];\n"
     val after = "foo = [\"${s}on${c}e${se}\", \"two\"];\n"
-    doTest(keys, before, after, CommandState.Mode.VISUAL, CommandState.SubMode.VISUAL_CHARACTER)
+    doTest(keys, before, after, VimStateMachine.Mode.VISUAL, VimStateMachine.SubMode.VISUAL_CHARACTER)
   }
 
   // |c| |v_i"|
@@ -501,7 +501,7 @@ class MotionActionTest : VimTestCase() {
     val keys = listOf("ci\"")
     val before = "foo = \"${c}\";\n"
     val after = "foo = \"\";\n"
-    doTest(keys, before, after, CommandState.Mode.INSERT, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.INSERT, VimStateMachine.SubMode.NONE)
   }
 
   // VIM-132 |d| |v_i'|
@@ -509,7 +509,7 @@ class MotionActionTest : VimTestCase() {
     val keys = listOf("di'")
     val before = "foo = 'bar b${c}az';\n"
     val after = "foo = '';\n"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // VIM-132 |d| |v_i`|
@@ -517,7 +517,7 @@ class MotionActionTest : VimTestCase() {
     val keys = listOf("di`")
     val before = "foo = `bar b${c}az`;\n"
     val after = "foo = ``;\n"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // VIM-132 |d| |v_a'|
@@ -526,7 +526,7 @@ class MotionActionTest : VimTestCase() {
     val keys = listOf("da'")
     val before = "foo = 'bar b${c}az';\n"
     val after = "foo = ;\n"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // VIM-132 |d| |v_a`|
@@ -535,7 +535,7 @@ class MotionActionTest : VimTestCase() {
     val keys = listOf("da`")
     val before = "foo = `bar b${c}az`;\n"
     val after = "foo = ;\n"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // VIM-1427
@@ -543,7 +543,7 @@ class MotionActionTest : VimTestCase() {
     val keys = listOf("d2at")
     val before = "<a><b><c>$c</c></b></a>"
     val after = "<a></a>"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // VIM-2113
@@ -551,14 +551,14 @@ class MotionActionTest : VimTestCase() {
     val keys = listOf("cit")
     val before = "<a><c>$c</c></a>"
     val after = "<a><c></c></a>"
-    doTest(keys, before, after, CommandState.Mode.INSERT, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.INSERT, VimStateMachine.SubMode.NONE)
   }
 
   fun testDeleteToDigraph() {
     val keys = listOf("d/<C-K>O:<CR>")
     val before = "ab${c}cdÖef"
     val after = "abÖef"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // |[(|
@@ -801,7 +801,7 @@ two
     val keys = listOf("viw", "<Esc>", "0", "viw", "gv", "d")
     val before = "foo ${c}bar\n"
     val after = "foo \n"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // |CTRL-V|
@@ -817,7 +817,7 @@ two
     ${s}ba${se}r
     
     """.trimIndent()
-    doTest(keys, before, after, CommandState.Mode.VISUAL, CommandState.SubMode.VISUAL_BLOCK)
+    doTest(keys, before, after, VimStateMachine.Mode.VISUAL, VimStateMachine.SubMode.VISUAL_BLOCK)
   }
 
   // |CTRL-V|
@@ -833,7 +833,7 @@ two
     b${s}ar$se
     
     """.trimIndent()
-    doTest(keys, before, after, CommandState.Mode.VISUAL, CommandState.SubMode.VISUAL_BLOCK)
+    doTest(keys, before, after, VimStateMachine.Mode.VISUAL, VimStateMachine.SubMode.VISUAL_BLOCK)
   }
 
   // |CTRL-V|
@@ -851,7 +851,7 @@ two
     a${s}b$se
     
     """.trimIndent()
-    doTest(keys, before, after, CommandState.Mode.VISUAL, CommandState.SubMode.VISUAL_BLOCK)
+    doTest(keys, before, after, VimStateMachine.Mode.VISUAL, VimStateMachine.SubMode.VISUAL_BLOCK)
   }
 
   // |v_o|
@@ -859,7 +859,7 @@ two
     val keys = listOf("v", "l", "o", "l", "d")
     val before = "${c}foo\n"
     val after = "fo\n"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // VIM-564 |g_|
@@ -880,8 +880,8 @@ two
                 four  
                 
       """.trimIndent(),
-      CommandState.Mode.COMMAND,
-      CommandState.SubMode.NONE
+      VimStateMachine.Mode.COMMAND,
+      VimStateMachine.SubMode.NONE
     )
   }
 
@@ -903,8 +903,8 @@ two
                 four  
                 
       """.trimIndent(),
-      CommandState.Mode.COMMAND,
-      CommandState.SubMode.NONE
+      VimStateMachine.Mode.COMMAND,
+      VimStateMachine.SubMode.NONE
     )
   }
 
@@ -924,7 +924,7 @@ two
     bar
     
     """.trimIndent()
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   // |v_>| |gv|
@@ -948,7 +948,7 @@ two
       """.trimIndent()
     )
     typeText(injector.parser.parseKeys(">"))
-    assertMode(CommandState.Mode.COMMAND)
+    assertMode(VimStateMachine.Mode.COMMAND)
     assertState(
       """    foo
     bar
@@ -963,7 +963,7 @@ two
 """
     )
     typeText(injector.parser.parseKeys(">"))
-    assertMode(CommandState.Mode.COMMAND)
+    assertMode(VimStateMachine.Mode.COMMAND)
     assertState(
       """        foo
         bar
@@ -992,7 +992,7 @@ two
     bar
     
     """.trimIndent()
-    doTest(keys, before, after, CommandState.Mode.VISUAL, CommandState.SubMode.VISUAL_CHARACTER)
+    doTest(keys, before, after, VimStateMachine.Mode.VISUAL, VimStateMachine.SubMode.VISUAL_CHARACTER)
   }
 
   fun testVisualLineSelectDown() {
@@ -1006,7 +1006,7 @@ two
      
       """.trimIndent()
     )
-    assertMode(CommandState.Mode.VISUAL)
+    assertMode(VimStateMachine.Mode.VISUAL)
     assertSelection(
       """
     bar
@@ -1029,7 +1029,7 @@ two
      
       """.trimIndent()
     )
-    assertMode(CommandState.Mode.VISUAL)
+    assertMode(VimStateMachine.Mode.VISUAL)
     assertSelection(
       """
     bar

src/test/java/org/jetbrains/plugins/ideavim/action/ResetModeActionTest.kt

@@ -20,8 +20,8 @@ package org.jetbrains.plugins.ideavim.action
 
 import com.maddyhome.idea.vim.VimPlugin
 import com.maddyhome.idea.vim.api.injector
-import com.maddyhome.idea.vim.command.CommandState
-import com.maddyhome.idea.vim.common.MappingMode
+import com.maddyhome.idea.vim.command.MappingMode
+import com.maddyhome.idea.vim.command.VimStateMachine
 import com.maddyhome.idea.vim.key.MappingOwner
 import junit.framework.TestCase
 import org.jetbrains.plugins.ideavim.SkipNeovimReason
@@ -35,7 +35,7 @@ class ResetModeActionTest : VimTestCase() {
     val keys = "<C-\\><C-N>"
     val before = "A Discovery"
     val after = "A Discovery"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
     TestCase.assertFalse(myFixture.editor.selectionModel.hasSelection())
   }
 
@@ -43,7 +43,7 @@ class ResetModeActionTest : VimTestCase() {
     val keys = listOf("i", "<C-\\><C-N>")
     val before = "A Discovery"
     val after = "A Discovery"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
     TestCase.assertFalse(myFixture.editor.selectionModel.hasSelection())
   }
 
@@ -51,7 +51,7 @@ class ResetModeActionTest : VimTestCase() {
     val keys = listOf("i", "<C-\\><C-N>")
     val before = "A Disc${c}overy"
     val after = "A Dis${c}covery"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
     TestCase.assertFalse(myFixture.editor.selectionModel.hasSelection())
   }
 
@@ -59,7 +59,7 @@ class ResetModeActionTest : VimTestCase() {
     val keys = listOf("i", "<C-\\><C-N>", "3l")
     val before = "${c}A Discovery"
     val after = "A D${c}iscovery"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
     TestCase.assertFalse(myFixture.editor.selectionModel.hasSelection())
   }
 
@@ -67,7 +67,7 @@ class ResetModeActionTest : VimTestCase() {
     val keys = listOf("V", "<C-\\><C-N>")
     val before = "A Discovery"
     val after = "A Discovery"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
     TestCase.assertFalse(myFixture.editor.selectionModel.hasSelection())
   }
 
@@ -75,7 +75,7 @@ class ResetModeActionTest : VimTestCase() {
     val keys = listOf("gH", "<C-\\><C-N>")
     val before = "A Discovery"
     val after = "A Discovery"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
     TestCase.assertFalse(myFixture.editor.selectionModel.hasSelection())
   }
 
@@ -83,7 +83,7 @@ class ResetModeActionTest : VimTestCase() {
     val keys = listOf("d", "<C-\\><C-N>")
     val before = "A Discovery"
     val after = "A Discovery"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
     TestCase.assertFalse(myFixture.editor.selectionModel.hasSelection())
   }
 
@@ -91,7 +91,7 @@ class ResetModeActionTest : VimTestCase() {
     val keys = "d<Esc>dw"
     val before = "A Discovery"
     val after = "Discovery"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
     TestCase.assertFalse(myFixture.editor.selectionModel.hasSelection())
   }
 
@@ -99,7 +99,7 @@ class ResetModeActionTest : VimTestCase() {
     val keys = listOf("d", "<C-\\><C-N>", "dw")
     val before = "A Discovery"
     val after = "Discovery"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
     TestCase.assertFalse(myFixture.editor.selectionModel.hasSelection())
   }
 
@@ -107,7 +107,7 @@ class ResetModeActionTest : VimTestCase() {
     val keys = listOf("d", "<Esc>", "dw")
     val before = "A Discovery"
     val after = "Discovery"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
     TestCase.assertFalse(myFixture.editor.selectionModel.hasSelection())
   }
 
@@ -115,7 +115,7 @@ class ResetModeActionTest : VimTestCase() {
     val keys = listOf("d", "<C-[>", "dw")
     val before = "A Discovery"
     val after = "Discovery"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
     TestCase.assertFalse(myFixture.editor.selectionModel.hasSelection())
   }
 
@@ -127,7 +127,7 @@ class ResetModeActionTest : VimTestCase() {
     val keys = listOf("d", "<C-D>", "dw")
     val before = "A Discovery"
     val after = "Discovery"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
     TestCase.assertFalse(myFixture.editor.selectionModel.hasSelection())
   }
 
@@ -135,7 +135,7 @@ class ResetModeActionTest : VimTestCase() {
     val keys = listOf("c", "<C-\\><C-N>", "another")
     val before = "A Discovery"
     val after = "Another Discovery"
-    doTest(keys, before, after, CommandState.Mode.INSERT, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.INSERT, VimStateMachine.SubMode.NONE)
     TestCase.assertFalse(myFixture.editor.selectionModel.hasSelection())
   }
 
@@ -143,7 +143,7 @@ class ResetModeActionTest : VimTestCase() {
     val keys = "dt<esc>D"
     val before = "A ${c}Discovery"
     val after = "A "
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
     TestCase.assertFalse(myFixture.editor.selectionModel.hasSelection())
   }
 }

src/test/java/org/jetbrains/plugins/ideavim/action/change/RepeatChangeActionTest.kt

@@ -18,7 +18,7 @@
 
 package org.jetbrains.plugins.ideavim.action.change
 
-import com.maddyhome.idea.vim.command.CommandState
+import com.maddyhome.idea.vim.command.VimStateMachine
 import com.maddyhome.idea.vim.helper.VimBehaviorDiffers
 import org.jetbrains.plugins.ideavim.SkipNeovimReason
 import org.jetbrains.plugins.ideavim.TestWithoutNeovim
@@ -43,7 +43,7 @@ class RepeatChangeActionTest : VimTestCase() {
                 where it was settled on some sodden sand
                 hard by the torrent of a mountain pass.
     """.trimIndent()
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   fun `test simple repeat with dollar motion`() {
@@ -64,7 +64,7 @@ class RepeatChangeActionTest : VimTestCase() {
                 where it was settled on some sodden sand
                 hard by the torrent of a mountain pass.
     """.trimIndent()
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   fun `test repeat to line end`() {
@@ -85,7 +85,7 @@ class RepeatChangeActionTest : VimTestCase() {
                 where it was settled on some sodden sand
                 hard by the torrent of a mountain pass.
     """.trimIndent()
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   @VimBehaviorDiffers(description = "Different caret position")
@@ -107,7 +107,7 @@ class RepeatChangeActionTest : VimTestCase() {
                 whe${c}XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
                 XXXX by the torrent of a mountain pass.
     """.trimIndent()
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   fun `test count doesn't affect repeat`() {
@@ -128,7 +128,7 @@ class RepeatChangeActionTest : VimTestCase() {
                 where it was settled on some sodden sand
                 hard by the torrent of a mountain pass.
     """.trimIndent()
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   @TestWithoutNeovim(SkipNeovimReason.MULTICARET)
@@ -150,7 +150,7 @@ class RepeatChangeActionTest : VimTestCase() {
                 where XXXXXX settled on some sodden sand
                 ${c}XXXXXXy the torrent of a mountain pass.
     """.trimIndent()
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   fun `test line motion`() {
@@ -171,7 +171,7 @@ class RepeatChangeActionTest : VimTestCase() {
                 where it was settled on some sodden sand
                 hard by the torrent of a mountain pass.
     """.trimIndent()
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   @VimBehaviorDiffers(description = "Wrong caret position")
@@ -193,7 +193,7 @@ class RepeatChangeActionTest : VimTestCase() {
                 where it was settled on some sodden sand
                 ${c}XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
     """.trimIndent()
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   @VimBehaviorDiffers(description = "Wrong caret position")
@@ -215,7 +215,7 @@ class RepeatChangeActionTest : VimTestCase() {
                 |where it was settled on some sodden sand
                 |hard by the torrent of a mountain pass.
                 """.trimMargin()
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   @VimBehaviorDiffers(description = "Wrong caret position")
@@ -237,7 +237,7 @@ class RepeatChangeActionTest : VimTestCase() {
                 wherXXXt was settled on some sodden sand
                 hard by the torrent of a mountain pass.
     """.trimIndent()
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   @VimBehaviorDiffers(
@@ -271,7 +271,7 @@ class RepeatChangeActionTest : VimTestCase() {
                 XXXXX${c}Xy the torrent of a mountain pass.
 
     """.trimIndent()
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   @TestWithoutNeovim(SkipNeovimReason.UNCLEAR)
@@ -293,7 +293,7 @@ class RepeatChangeActionTest : VimTestCase() {
                 ${c}XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
                 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
     """.trimIndent()
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   fun `test repeat with count`() {
@@ -314,7 +314,7 @@ class RepeatChangeActionTest : VimTestCase() {
               where it was settled on some sodden sand
               hard by the torrent of a mountain pass.
     """.trimIndent()
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   fun `test redo register feature`() {
@@ -331,7 +331,7 @@ class RepeatChangeActionTest : VimTestCase() {
         One
         
       """.trimIndent(),
-      CommandState.Mode.COMMAND, CommandState.SubMode.NONE
+      VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE
     )
   }
 }

src/test/java/org/jetbrains/plugins/ideavim/action/change/UndoActionTest.kt

@@ -18,7 +18,7 @@
 
 package org.jetbrains.plugins.ideavim.action.change
 
-import com.maddyhome.idea.vim.command.CommandState
+import com.maddyhome.idea.vim.command.VimStateMachine
 import org.jetbrains.plugins.ideavim.VimTestCase
 
 class UndoActionTest : VimTestCase() {
@@ -33,7 +33,7 @@ class UndoActionTest : VimTestCase() {
                 hard by the torrent of a mountain pass.
     """.trimIndent()
     val after = before
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
     val editor = myFixture.editor
     assertFalse(editor.caretModel.primaryCaret.hasSelection())
   }
@@ -49,7 +49,7 @@ class UndoActionTest : VimTestCase() {
                 hard by the torrent of a mountain pass.
     """.trimIndent()
     val after = before
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
     assertFalse(hasSelection())
   }
 
@@ -71,7 +71,7 @@ class UndoActionTest : VimTestCase() {
                 where it was settled on some sodden sand
                 hard by the torrent of a mountain pass.
     """.trimIndent()
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
     assertFalse(hasSelection())
   }
 
@@ -88,12 +88,12 @@ class UndoActionTest : VimTestCase() {
     val after = """
                 A Discovery
 
-                I1 found${c} it in a legendary land
+                I1 found$c it in a legendary land
                 all rocks and lavender and tufted grass,
                 where it was settled on some sodden sand
                 hard by the torrent of a mountain pass.
     """.trimIndent()
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
     assertFalse(hasSelection())
   }
 
@@ -101,4 +101,4 @@ class UndoActionTest : VimTestCase() {
     val editor = myFixture.editor
     return editor.caretModel.primaryCaret.hasSelection()
   }
-}
+}

src/test/java/org/jetbrains/plugins/ideavim/action/change/change/ChangeLineActionTest.kt

@@ -18,7 +18,7 @@
 
 package org.jetbrains.plugins.ideavim.action.change.change
 
-import com.maddyhome.idea.vim.command.CommandState
+import com.maddyhome.idea.vim.command.VimStateMachine
 import org.jetbrains.plugins.ideavim.VimTestCase
 
 class ChangeLineActionTest : VimTestCase() {
@@ -26,14 +26,14 @@ class ChangeLineActionTest : VimTestCase() {
     setupChecks {
       this.neoVim.ignoredRegisters = setOf('1', '"')
     }
-    doTest("cc", "", "", CommandState.Mode.INSERT, CommandState.SubMode.NONE)
+    doTest("cc", "", "", VimStateMachine.Mode.INSERT, VimStateMachine.SubMode.NONE)
   }
 
   fun `test on empty file with S`() {
     setupChecks {
       this.neoVim.ignoredRegisters = setOf('1', '"')
     }
-    doTest("S", "", "", CommandState.Mode.INSERT, CommandState.SubMode.NONE)
+    doTest("S", "", "", VimStateMachine.Mode.INSERT, VimStateMachine.SubMode.NONE)
   }
 
   fun `test on last line with S`() {
@@ -47,7 +47,7 @@ class ChangeLineActionTest : VimTestCase() {
             I found it in a legendary land
             $c
       """.trimIndent(),
-      CommandState.Mode.INSERT, CommandState.SubMode.NONE
+      VimStateMachine.Mode.INSERT, VimStateMachine.SubMode.NONE
     )
   }
 
@@ -64,7 +64,7 @@ class ChangeLineActionTest : VimTestCase() {
             $c
             
       """.trimIndent(),
-      CommandState.Mode.INSERT, CommandState.SubMode.NONE
+      VimStateMachine.Mode.INSERT, VimStateMachine.SubMode.NONE
     )
   }
 
@@ -79,7 +79,7 @@ class ChangeLineActionTest : VimTestCase() {
             I found it in a legendary land
             $c
       """.trimIndent(),
-      CommandState.Mode.INSERT, CommandState.SubMode.NONE
+      VimStateMachine.Mode.INSERT, VimStateMachine.SubMode.NONE
     )
   }
 
@@ -96,7 +96,7 @@ class ChangeLineActionTest : VimTestCase() {
             $c
             
       """.trimIndent(),
-      CommandState.Mode.INSERT, CommandState.SubMode.NONE
+      VimStateMachine.Mode.INSERT, VimStateMachine.SubMode.NONE
     )
   }
 
@@ -111,7 +111,7 @@ class ChangeLineActionTest : VimTestCase() {
             $c
             all rocks and lavender and tufted grass,
       """.trimIndent(),
-      CommandState.Mode.INSERT, CommandState.SubMode.NONE
+      VimStateMachine.Mode.INSERT, VimStateMachine.SubMode.NONE
     )
   }
 
@@ -128,7 +128,7 @@ class ChangeLineActionTest : VimTestCase() {
             $c
             
       """.trimIndent(),
-      CommandState.Mode.INSERT, CommandState.SubMode.NONE
+      VimStateMachine.Mode.INSERT, VimStateMachine.SubMode.NONE
     )
   }
 
@@ -145,7 +145,7 @@ class ChangeLineActionTest : VimTestCase() {
             all rocks and lavender and tufted grass,
             $c
       """.trimIndent(),
-      CommandState.Mode.INSERT, CommandState.SubMode.NONE
+      VimStateMachine.Mode.INSERT, VimStateMachine.SubMode.NONE
     )
   }
 
@@ -182,7 +182,7 @@ class ChangeLineActionTest : VimTestCase() {
             that priceless mote now dimpling the convex
             and limpid teardrop on a lighted slide.
       """.trimIndent(),
-      CommandState.Mode.INSERT, CommandState.SubMode.NONE
+      VimStateMachine.Mode.INSERT, VimStateMachine.SubMode.NONE
     )
   }
 }

src/test/java/org/jetbrains/plugins/ideavim/action/change/change/ChangeMotionActionTest.kt

@@ -20,18 +20,18 @@
 
 package org.jetbrains.plugins.ideavim.action.change.change
 
-import com.maddyhome.idea.vim.command.CommandState
+import com.maddyhome.idea.vim.command.VimStateMachine
 import org.jetbrains.plugins.ideavim.VimTestCase
 
 class ChangeMotionActionTest : VimTestCase() {
   // VIM-515 |c| |W|
   fun `test change big word with punctuation and alpha`() {
-    doTest("cW", "foo${c}(bar baz\n", "foo baz\n", CommandState.Mode.INSERT, CommandState.SubMode.NONE)
+    doTest("cW", "foo${c}(bar baz\n", "foo baz\n", VimStateMachine.Mode.INSERT, VimStateMachine.SubMode.NONE)
   }
 
   // VIM-300 |c| |w|
   fun testChangeWordTwoWordsWithoutWhitespace() {
-    doTest("cw", "${c}\$value\n", "value\n", CommandState.Mode.INSERT, CommandState.SubMode.NONE)
+    doTest("cw", "${c}\$value\n", "value\n", VimStateMachine.Mode.INSERT, VimStateMachine.SubMode.NONE)
   }
 
   // VIM-296 |cc|
@@ -39,7 +39,7 @@ class ChangeMotionActionTest : VimTestCase() {
     doTest(
       "cc",
       "foo\n" + "${c}bar\n",
-      "foo\n${c}" + "\n", CommandState.Mode.INSERT, CommandState.SubMode.NONE
+      "foo\n${c}" + "\n", VimStateMachine.Mode.INSERT, VimStateMachine.SubMode.NONE
     )
   }
 
@@ -57,7 +57,7 @@ class ChangeMotionActionTest : VimTestCase() {
         ....${c}
         }
       """.trimIndent().dotToSpace(),
-      CommandState.Mode.INSERT, CommandState.SubMode.NONE
+      VimStateMachine.Mode.INSERT, VimStateMachine.SubMode.NONE
     )
   }
 
@@ -66,7 +66,7 @@ class ChangeMotionActionTest : VimTestCase() {
     doTest(
       "ccbaz",
       "${c}foo\n" + "bar\n",
-      "baz\n" + "bar\n", CommandState.Mode.INSERT, CommandState.SubMode.NONE
+      "baz\n" + "bar\n", VimStateMachine.Mode.INSERT, VimStateMachine.SubMode.NONE
     )
   }
 
@@ -83,7 +83,7 @@ class ChangeMotionActionTest : VimTestCase() {
         ${c}
         
       """.trimIndent(),
-      CommandState.Mode.INSERT, CommandState.SubMode.NONE
+      VimStateMachine.Mode.INSERT, VimStateMachine.SubMode.NONE
     )
   }
 
@@ -91,23 +91,23 @@ class ChangeMotionActionTest : VimTestCase() {
     doTest(
       "c_baz",
       "${c}foo\n" + "bar\n",
-      "baz\n" + "bar\n", CommandState.Mode.INSERT, CommandState.SubMode.NONE
+      "baz\n" + "bar\n", VimStateMachine.Mode.INSERT, VimStateMachine.SubMode.NONE
     )
   }
 
   // VIM-200 |c| |w|
   fun testChangeWordAtLastChar() {
     doTest(
-      "cw", "on${c}e two three\n", "on${c} two three\n", CommandState.Mode.INSERT,
-      CommandState.SubMode.NONE
+      "cw", "on${c}e two three\n", "on${c} two three\n", VimStateMachine.Mode.INSERT,
+      VimStateMachine.SubMode.NONE
     )
   }
 
   // VIM-1380 |c| |w| |count|
   fun testChangeTwoWordsAtLastChar() {
     doTest(
-      "c2w", "on${c}e two three\n", "on${c} three\n", CommandState.Mode.INSERT,
-      CommandState.SubMode.NONE
+      "c2w", "on${c}e two three\n", "on${c} three\n", VimStateMachine.Mode.INSERT,
+      VimStateMachine.SubMode.NONE
     )
   }
 
@@ -125,15 +125,15 @@ class ChangeMotionActionTest : VimTestCase() {
    }
    
       """.trimIndent(),
-      CommandState.Mode.INSERT, CommandState.SubMode.NONE
+      VimStateMachine.Mode.INSERT, VimStateMachine.SubMode.NONE
     )
   }
 
   // VIM-276 |c| |T|
   fun testChangeLinesTillBackwards() {
     doTest(
-      "cT(", "if (condition) ${c}{\n" + "}\n", "if ({\n" + "}\n", CommandState.Mode.INSERT,
-      CommandState.SubMode.NONE
+      "cT(", "if (condition) ${c}{\n" + "}\n", "if ({\n" + "}\n", VimStateMachine.Mode.INSERT,
+      VimStateMachine.SubMode.NONE
     )
   }
 
@@ -143,7 +143,7 @@ class ChangeMotionActionTest : VimTestCase() {
     doTest(
       "cFc",
       "if (condition) {${c}\n" + "}\n",
-      "if (\n" + "}\n", CommandState.Mode.INSERT, CommandState.SubMode.NONE
+      "if (\n" + "}\n", VimStateMachine.Mode.INSERT, VimStateMachine.SubMode.NONE
     )
   }
 
@@ -151,7 +151,7 @@ class ChangeMotionActionTest : VimTestCase() {
   fun testChangeLastWordInLine() {
     doTest(
       "cw",
-      "ab.${c}cd\n", "ab.${c}\n", CommandState.Mode.INSERT, CommandState.SubMode.NONE
+      "ab.${c}cd\n", "ab.${c}\n", VimStateMachine.Mode.INSERT, VimStateMachine.SubMode.NONE
     )
   }
 
@@ -159,16 +159,16 @@ class ChangeMotionActionTest : VimTestCase() {
   fun testChangeLastInnerWordInLine() {
     doTest(
       listOf("c", "iw", "baz"),
-      "foo bar bo${c}o\n", "foo bar baz\n", CommandState.Mode.INSERT, CommandState.SubMode.NONE
+      "foo bar bo${c}o\n", "foo bar baz\n", VimStateMachine.Mode.INSERT, VimStateMachine.SubMode.NONE
     )
   }
 
   // VIM-421 |c| |w|
   fun testChangeLastCharInLine() {
-    doTest("cw", "fo${c}o\n", "fo${c}\n", CommandState.Mode.INSERT, CommandState.SubMode.NONE)
+    doTest("cw", "fo${c}o\n", "fo${c}\n", VimStateMachine.Mode.INSERT, VimStateMachine.SubMode.NONE)
   }
 
   fun testLastSymbolInWord() {
-    doTest("cw", "fo${c}o", "fo${c}", CommandState.Mode.INSERT, CommandState.SubMode.NONE)
+    doTest("cw", "fo${c}o", "fo${c}", VimStateMachine.Mode.INSERT, VimStateMachine.SubMode.NONE)
   }
 }

src/test/java/org/jetbrains/plugins/ideavim/action/change/change/ChangeVisualActionTest.kt

@@ -21,7 +21,7 @@
 package org.jetbrains.plugins.ideavim.action.change.change
 
 import com.maddyhome.idea.vim.api.injector
-import com.maddyhome.idea.vim.command.CommandState
+import com.maddyhome.idea.vim.command.VimStateMachine
 import com.maddyhome.idea.vim.helper.VimBehaviorDiffers
 import org.jetbrains.plugins.ideavim.SkipNeovimReason
 import org.jetbrains.plugins.ideavim.TestWithoutNeovim
@@ -45,7 +45,7 @@ class ChangeVisualActionTest : VimTestCase() {
             where it was settled on some sodden sand
             hard by the torrent of a mountain pass.
     """.trimIndent()
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   fun `test multiple line change in text middle`() {
@@ -65,7 +65,7 @@ class ChangeVisualActionTest : VimTestCase() {
             where it was settled on some sodden sand
             hard by the torrent of a mountain pass.
     """.trimIndent()
-    doTest(keys, before, after, CommandState.Mode.INSERT, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.INSERT, VimStateMachine.SubMode.NONE)
   }
 
   @VimBehaviorDiffers(
@@ -97,7 +97,7 @@ class ChangeVisualActionTest : VimTestCase() {
             ${c}
             
     """.trimIndent()
-    doTest(keys, before, after, CommandState.Mode.INSERT, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.INSERT, VimStateMachine.SubMode.NONE)
   }
 
   fun `test multiple line change till the end with two new lines`() {
@@ -123,7 +123,7 @@ class ChangeVisualActionTest : VimTestCase() {
             
             
     """.trimIndent()
-    doTest(keys, before, after, CommandState.Mode.INSERT, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.INSERT, VimStateMachine.SubMode.NONE)
   }
 
   @VimBehaviorDiffers(description = "Wrong caret position")
@@ -145,14 +145,14 @@ class ChangeVisualActionTest : VimTestCase() {
             wh|Hello
             ha|Hello
     """.trimIndent()
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   fun `test replace first line`() {
     val keys = "VcHello<esc>"
     val before = "${c}A Discovery"
     val after = "Hello"
-    doTest(keys, before, after, CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   @TestWithoutNeovim(SkipNeovimReason.MULTICARET)
@@ -161,7 +161,7 @@ class ChangeVisualActionTest : VimTestCase() {
       injector.parser.parseKeys("v2lc" + "aaa" + "<ESC>"),
       "abcd${c}ffffff${c}abcde${c}aaaa\n"
     )
-    assertMode(CommandState.Mode.COMMAND)
+    assertMode(VimStateMachine.Mode.COMMAND)
     assertState("abcdaa${c}afffaa${c}adeaa${c}aa\n")
   }
 
@@ -182,8 +182,8 @@ class ChangeVisualActionTest : VimTestCase() {
         ba_quux_bar
         
       """.trimIndent(),
-      CommandState.Mode.COMMAND,
-      CommandState.SubMode.NONE
+      VimStateMachine.Mode.COMMAND,
+      VimStateMachine.SubMode.NONE
     )
   }
 
@@ -204,8 +204,8 @@ class ChangeVisualActionTest : VimTestCase() {
         ba_quux_bar
         
       """.trimIndent(),
-      CommandState.Mode.COMMAND,
-      CommandState.SubMode.NONE
+      VimStateMachine.Mode.COMMAND,
+      VimStateMachine.SubMode.NONE
     )
   }
 }

src/test/java/org/jetbrains/plugins/ideavim/action/change/change/ChangeVisualLinesEndActionTest.kt

@@ -20,7 +20,7 @@
 
 package org.jetbrains.plugins.ideavim.action.change.change
 
-import com.maddyhome.idea.vim.command.CommandState
+import com.maddyhome.idea.vim.command.VimStateMachine
 import com.maddyhome.idea.vim.helper.VimBehaviorDiffers
 import org.jetbrains.plugins.ideavim.VimTestCase
 
@@ -43,7 +43,7 @@ class ChangeVisualLinesEndActionTest : VimTestCase() {
             where it was settled on some sodden sand
             ${c}
     """.trimIndent()
-    doTest(keys, before, after, CommandState.Mode.INSERT, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.INSERT, VimStateMachine.SubMode.NONE)
   }
 
   fun `test last empty line`() {
@@ -66,7 +66,7 @@ class ChangeVisualLinesEndActionTest : VimTestCase() {
             hard by the torrent of a mountain pass.
             ${c}
     """.trimIndent()
-    doTest(keys, before, after, CommandState.Mode.INSERT, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.INSERT, VimStateMachine.SubMode.NONE)
   }
 
   @VimBehaviorDiffers(
@@ -99,6 +99,6 @@ class ChangeVisualLinesEndActionTest : VimTestCase() {
             ${c}
             
     """.trimIndent()
-    doTest(keys, before, after, CommandState.Mode.INSERT, CommandState.SubMode.NONE)
+    doTest(keys, before, after, VimStateMachine.Mode.INSERT, VimStateMachine.SubMode.NONE)
   }
 }

src/test/java/org/jetbrains/plugins/ideavim/action/change/change/number/ChangeNumberDecActionTest.kt

@@ -18,16 +18,16 @@
 
 package org.jetbrains.plugins.ideavim.action.change.change.number
 
-import com.maddyhome.idea.vim.command.CommandState
+import com.maddyhome.idea.vim.command.VimStateMachine
 import org.jetbrains.plugins.ideavim.VimTestCase
 
 class ChangeNumberDecActionTest : VimTestCase() {
   fun `test decrement hex to negative value`() {
-    doTest("<C-X>", "0x0000", "0xffffffffffffffff", CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest("<C-X>", "0x0000", "0xffffffffffffffff", VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   fun `test decrement hex to negative value by 10`() {
-    doTest("10<C-X>", "0x0005", "0xfffffffffffffffb", CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest("10<C-X>", "0x0005", "0xfffffffffffffffb", VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   fun `test decrement oct to negative value`() {
@@ -35,13 +35,13 @@ class ChangeNumberDecActionTest : VimTestCase() {
       ":set nrformats+=octal<CR><C-X>",
       "00000",
       "01777777777777777777777",
-      CommandState.Mode.COMMAND,
-      CommandState.SubMode.NONE
+      VimStateMachine.Mode.COMMAND,
+      VimStateMachine.SubMode.NONE
     )
   }
 
   fun `test decrement incorrect octal`() {
-    doTest(":set nrformats+=octal<CR><C-X>", "008", "7", CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest(":set nrformats+=octal<CR><C-X>", "008", "7", VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 
   fun `test decrement oct to negative value by 10`() {
@@ -49,8 +49,8 @@ class ChangeNumberDecActionTest : VimTestCase() {
       ":set nrformats+=octal<CR>10<C-X>",
       "00005",
       "01777777777777777777773",
-      CommandState.Mode.COMMAND,
-      CommandState.SubMode.NONE
+      VimStateMachine.Mode.COMMAND,
+      VimStateMachine.SubMode.NONE
     )
   }
 }

src/test/java/org/jetbrains/plugins/ideavim/action/change/change/number/ChangeNumberIncActionTest.kt

@@ -18,13 +18,13 @@
 
 package org.jetbrains.plugins.ideavim.action.change.change.number
 
-import com.maddyhome.idea.vim.command.CommandState
+import com.maddyhome.idea.vim.command.VimStateMachine
 import com.maddyhome.idea.vim.helper.VimBehaviorDiffers
 import org.jetbrains.plugins.ideavim.VimTestCase
 
 class ChangeNumberIncActionTest : VimTestCase() {
   @VimBehaviorDiffers(originalVimAfter = "11X0")
   fun `test inc fancy number`() {
-    doTest("<C-A>", "1${c}0X0", "10X1", CommandState.Mode.COMMAND, CommandState.SubMode.NONE)
+    doTest("<C-A>", "1${c}0X0", "10X1", VimStateMachine.Mode.COMMAND, VimStateMachine.SubMode.NONE)
   }
 }

src/test/java/org/jetbrains/plugins/ideavim/action/change/change/number/ChangeVisualNumberAvalancheDecActionTest.kt

@@ -18,7 +18,7 @@
 
 package org.jetbrains.plugins.ideavim.action.change.change.number
 
-import com.maddyhome.idea.vim.command.CommandState
+import com.maddyhome.idea.vim.command.VimStateMachine
 import org.jetbrains.plugins.ideavim.VimTestCase
 
 /**
@@ -38,8 +38,8 @@ class ChangeVisualNumberAvalancheDecActionTest : VimTestCase() {
                     number 1
                     number 1
       """.trimIndent(),
-      CommandState.Mode.COMMAND,
-      CommandState.SubMode.NONE
+      VimStateMachine.Mode.COMMAND,
+      VimStateMachine.SubMode.NONE
     )
   }
 
@@ -56,8 +56,8 @@ class ChangeVisualNumberAvalancheDecActionTest : VimTestCase() {
                     number 1
                     number 1
       """.trimIndent(),
-      CommandState.Mode.COMMAND,
-      CommandState.SubMode.NONE
+      VimStateMachine.Mode.COMMAND,
+      VimStateMachine.SubMode.NONE
     )
   }
 }