--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/.cms/lib/codemirror/keymap/vim.js	Fri Oct 11 22:40:23 2024 +0000
@@ -0,0 +1,5978 @@
+(function(mod) {
+    if (typeof exports == "object" && typeof module == "object") // CommonJS
+      mod(require("../lib/codemirror"), require("../addon/search/searchcursor"), require("../addon/dialog/dialog"), require("../addon/edit/matchbrackets.js"));
+    else if (typeof define == "function" && define.amd) // AMD
+      define(["../lib/codemirror", "../addon/search/searchcursor", "../addon/dialog/dialog", "../addon/edit/matchbrackets"], mod);
+    else // Plain browser env
+      mod(CodeMirror);
+  })(function(CodeMirror) {
+    'use strict';
+  // CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: https://codemirror.net/5/LICENSE
+
+/**
+ * Supported keybindings:
+ *   Too many to list. Refer to defaultKeymap below.
+ *
+ * Supported Ex commands:
+ *   Refer to defaultExCommandMap below.
+ *
+ * Registers: unnamed, -, ., :, /, _, a-z, A-Z, 0-9
+ *   (Does not respect the special case for number registers when delete
+ *    operator is made with these commands: %, (, ),  , /, ?, n, N, {, } )
+ *   TODO: Implement the remaining registers.
+ *
+ * Marks: a-z, A-Z, and 0-9
+ *   TODO: Implement the remaining special marks. They have more complex
+ *       behavior.
+ *
+ * Events:
+ *  'vim-mode-change' - raised on the editor anytime the current mode changes,
+ *                      Event object: {mode: "visual", subMode: "linewise"}
+ *
+ * Code structure:
+ *  1. Default keymap
+ *  2. Variable declarations and short basic helpers
+ *  3. Instance (External API) implementation
+ *  4. Internal state tracking objects (input state, counter) implementation
+ *     and instantiation
+ *  5. Key handler (the main command dispatcher) implementation
+ *  6. Motion, operator, and action implementations
+ *  7. Helper functions for the key handler, motions, operators, and actions
+ *  8. Set up Vim to work as a keymap for CodeMirror.
+ *  9. Ex command implementations.
+ */
+
+function initVim$1(CodeMirror) {
+
+  var Pos = CodeMirror.Pos;
+
+  function transformCursor(cm, range) {
+    var vim = cm.state.vim;
+    if (!vim || vim.insertMode) return range.head;
+    var head = vim.sel.head;
+    if (!head)  return range.head;
+
+    if (vim.visualBlock) {
+      if (range.head.line != head.line) {
+        return;
+      }
+    }
+    if (range.from() == range.anchor && !range.empty()) {
+      if (range.head.line == head.line && range.head.ch != head.ch)
+        return new Pos(range.head.line, range.head.ch - 1);
+    }
+
+    return range.head;
+  }
+
+  var defaultKeymap = [
+    // Key to key mapping. This goes first to make it possible to override
+    // existing mappings.
+    { keys: '<Left>', type: 'keyToKey', toKeys: 'h' },
+    { keys: '<Right>', type: 'keyToKey', toKeys: 'l' },
+    { keys: '<Up>', type: 'keyToKey', toKeys: 'k' },
+    { keys: '<Down>', type: 'keyToKey', toKeys: 'j' },
+    { keys: 'g<Up>', type: 'keyToKey', toKeys: 'gk' },
+    { keys: 'g<Down>', type: 'keyToKey', toKeys: 'gj' },
+    { keys: '<Space>', type: 'keyToKey', toKeys: 'l' },
+    { keys: '<BS>', type: 'keyToKey', toKeys: 'h', context: 'normal'},
+    { keys: '<Del>', type: 'keyToKey', toKeys: 'x', context: 'normal'},
+    { keys: '<C-Space>', type: 'keyToKey', toKeys: 'W' },
+    { keys: '<C-BS>', type: 'keyToKey', toKeys: 'B', context: 'normal' },
+    { keys: '<S-Space>', type: 'keyToKey', toKeys: 'w' },
+    { keys: '<S-BS>', type: 'keyToKey', toKeys: 'b', context: 'normal' },
+    { keys: '<C-n>', type: 'keyToKey', toKeys: 'j' },
+    { keys: '<C-p>', type: 'keyToKey', toKeys: 'k' },
+    { keys: '<C-[>', type: 'keyToKey', toKeys: '<Esc>' },
+    { keys: '<C-c>', type: 'keyToKey', toKeys: '<Esc>' },
+    { keys: '<C-[>', type: 'keyToKey', toKeys: '<Esc>', context: 'insert' },
+    { keys: '<C-c>', type: 'keyToKey', toKeys: '<Esc>', context: 'insert' },
+    { keys: '<C-Esc>', type: 'keyToKey', toKeys: '<Esc>' }, // ipad keyboard sends C-Esc instead of C-[
+    { keys: '<C-Esc>', type: 'keyToKey', toKeys: '<Esc>', context: 'insert' },
+    { keys: 's', type: 'keyToKey', toKeys: 'cl', context: 'normal' },
+    { keys: 's', type: 'keyToKey', toKeys: 'c', context: 'visual'},
+    { keys: 'S', type: 'keyToKey', toKeys: 'cc', context: 'normal' },
+    { keys: 'S', type: 'keyToKey', toKeys: 'VdO', context: 'visual' },
+    { keys: '<Home>', type: 'keyToKey', toKeys: '0' },
+    { keys: '<End>', type: 'keyToKey', toKeys: '$' },
+    { keys: '<PageUp>', type: 'keyToKey', toKeys: '<C-b>' },
+    { keys: '<PageDown>', type: 'keyToKey', toKeys: '<C-f>' },
+    { keys: '<CR>', type: 'keyToKey', toKeys: 'j^', context: 'normal' },
+    { keys: '<Ins>', type: 'keyToKey', toKeys: 'i', context: 'normal'},
+    { keys: '<Ins>', type: 'action', action: 'toggleOverwrite', context: 'insert' },
+    // Motions
+    { keys: 'H', type: 'motion', motion: 'moveToTopLine', motionArgs: { linewise: true, toJumplist: true }},
+    { keys: 'M', type: 'motion', motion: 'moveToMiddleLine', motionArgs: { linewise: true, toJumplist: true }},
+    { keys: 'L', type: 'motion', motion: 'moveToBottomLine', motionArgs: { linewise: true, toJumplist: true }},
+    { keys: 'h', type: 'motion', motion: 'moveByCharacters', motionArgs: { forward: false }},
+    { keys: 'l', type: 'motion', motion: 'moveByCharacters', motionArgs: { forward: true }},
+    { keys: 'j', type: 'motion', motion: 'moveByLines', motionArgs: { forward: true, linewise: true }},
+    { keys: 'k', type: 'motion', motion: 'moveByLines', motionArgs: { forward: false, linewise: true }},
+    { keys: 'gj', type: 'motion', motion: 'moveByDisplayLines', motionArgs: { forward: true }},
+    { keys: 'gk', type: 'motion', motion: 'moveByDisplayLines', motionArgs: { forward: false }},
+    { keys: 'w', type: 'motion', motion: 'moveByWords', motionArgs: { forward: true, wordEnd: false }},
+    { keys: 'W', type: 'motion', motion: 'moveByWords', motionArgs: { forward: true, wordEnd: false, bigWord: true }},
+    { keys: 'e', type: 'motion', motion: 'moveByWords', motionArgs: { forward: true, wordEnd: true, inclusive: true }},
+    { keys: 'E', type: 'motion', motion: 'moveByWords', motionArgs: { forward: true, wordEnd: true, bigWord: true, inclusive: true }},
+    { keys: 'b', type: 'motion', motion: 'moveByWords', motionArgs: { forward: false, wordEnd: false }},
+    { keys: 'B', type: 'motion', motion: 'moveByWords', motionArgs: { forward: false, wordEnd: false, bigWord: true }},
+    { keys: 'ge', type: 'motion', motion: 'moveByWords', motionArgs: { forward: false, wordEnd: true, inclusive: true }},
+    { keys: 'gE', type: 'motion', motion: 'moveByWords', motionArgs: { forward: false, wordEnd: true, bigWord: true, inclusive: true }},
+    { keys: '{', type: 'motion', motion: 'moveByParagraph', motionArgs: { forward: false, toJumplist: true }},
+    { keys: '}', type: 'motion', motion: 'moveByParagraph', motionArgs: { forward: true, toJumplist: true }},
+    { keys: '(', type: 'motion', motion: 'moveBySentence', motionArgs: { forward: false }},
+    { keys: ')', type: 'motion', motion: 'moveBySentence', motionArgs: { forward: true }},
+    { keys: '<C-f>', type: 'motion', motion: 'moveByPage', motionArgs: { forward: true }},
+    { keys: '<C-b>', type: 'motion', motion: 'moveByPage', motionArgs: { forward: false }},
+    { keys: '<C-d>', type: 'motion', motion: 'moveByScroll', motionArgs: { forward: true, explicitRepeat: true }},
+    { keys: '<C-u>', type: 'motion', motion: 'moveByScroll', motionArgs: { forward: false, explicitRepeat: true }},
+    { keys: 'gg', type: 'motion', motion: 'moveToLineOrEdgeOfDocument', motionArgs: { forward: false, explicitRepeat: true, linewise: true, toJumplist: true }},
+    { keys: 'G', type: 'motion', motion: 'moveToLineOrEdgeOfDocument', motionArgs: { forward: true, explicitRepeat: true, linewise: true, toJumplist: true }},
+    {keys: "g$", type: "motion", motion: "moveToEndOfDisplayLine"},
+    {keys: "g^", type: "motion", motion: "moveToStartOfDisplayLine"},
+    {keys: "g0", type: "motion", motion: "moveToStartOfDisplayLine"},
+    { keys: '0', type: 'motion', motion: 'moveToStartOfLine' },
+    { keys: '^', type: 'motion', motion: 'moveToFirstNonWhiteSpaceCharacter' },
+    { keys: '+', type: 'motion', motion: 'moveByLines', motionArgs: { forward: true, toFirstChar:true }},
+    { keys: '-', type: 'motion', motion: 'moveByLines', motionArgs: { forward: false, toFirstChar:true }},
+    { keys: '_', type: 'motion', motion: 'moveByLines', motionArgs: { forward: true, toFirstChar:true, repeatOffset:-1 }},
+    { keys: '$', type: 'motion', motion: 'moveToEol', motionArgs: { inclusive: true }},
+    { keys: '%', type: 'motion', motion: 'moveToMatchedSymbol', motionArgs: { inclusive: true, toJumplist: true }},
+    { keys: 'f<character>', type: 'motion', motion: 'moveToCharacter', motionArgs: { forward: true , inclusive: true }},
+    { keys: 'F<character>', type: 'motion', motion: 'moveToCharacter', motionArgs: { forward: false }},
+    { keys: 't<character>', type: 'motion', motion: 'moveTillCharacter', motionArgs: { forward: true, inclusive: true }},
+    { keys: 'T<character>', type: 'motion', motion: 'moveTillCharacter', motionArgs: { forward: false }},
+    { keys: ';', type: 'motion', motion: 'repeatLastCharacterSearch', motionArgs: { forward: true }},
+    { keys: ',', type: 'motion', motion: 'repeatLastCharacterSearch', motionArgs: { forward: false }},
+    { keys: '\'<character>', type: 'motion', motion: 'goToMark', motionArgs: {toJumplist: true, linewise: true}},
+    { keys: '`<character>', type: 'motion', motion: 'goToMark', motionArgs: {toJumplist: true}},
+    { keys: ']`', type: 'motion', motion: 'jumpToMark', motionArgs: { forward: true } },
+    { keys: '[`', type: 'motion', motion: 'jumpToMark', motionArgs: { forward: false } },
+    { keys: ']\'', type: 'motion', motion: 'jumpToMark', motionArgs: { forward: true, linewise: true } },
+    { keys: '[\'', type: 'motion', motion: 'jumpToMark', motionArgs: { forward: false, linewise: true } },
+    // the next two aren't motions but must come before more general motion declarations
+    { keys: ']p', type: 'action', action: 'paste', isEdit: true, actionArgs: { after: true, isEdit: true, matchIndent: true}},
+    { keys: '[p', type: 'action', action: 'paste', isEdit: true, actionArgs: { after: false, isEdit: true, matchIndent: true}},
+    { keys: ']<character>', type: 'motion', motion: 'moveToSymbol', motionArgs: { forward: true, toJumplist: true}},
+    { keys: '[<character>', type: 'motion', motion: 'moveToSymbol', motionArgs: { forward: false, toJumplist: true}},
+    { keys: '|', type: 'motion', motion: 'moveToColumn'},
+    { keys: 'o', type: 'motion', motion: 'moveToOtherHighlightedEnd', context:'visual'},
+    { keys: 'O', type: 'motion', motion: 'moveToOtherHighlightedEnd', motionArgs: {sameLine: true}, context:'visual'},
+    // Operators
+    { keys: 'd', type: 'operator', operator: 'delete' },
+    { keys: 'y', type: 'operator', operator: 'yank' },
+    { keys: 'c', type: 'operator', operator: 'change' },
+    { keys: '=', type: 'operator', operator: 'indentAuto' },
+    { keys: '>', type: 'operator', operator: 'indent', operatorArgs: { indentRight: true }},
+    { keys: '<', type: 'operator', operator: 'indent', operatorArgs: { indentRight: false }},
+    { keys: 'g~', type: 'operator', operator: 'changeCase' },
+    { keys: 'gu', type: 'operator', operator: 'changeCase', operatorArgs: {toLower: true}, isEdit: true },
+    { keys: 'gU', type: 'operator', operator: 'changeCase', operatorArgs: {toLower: false}, isEdit: true },
+    { keys: 'n', type: 'motion', motion: 'findNext', motionArgs: { forward: true, toJumplist: true }},
+    { keys: 'N', type: 'motion', motion: 'findNext', motionArgs: { forward: false, toJumplist: true }},
+    { keys: 'gn', type: 'motion', motion: 'findAndSelectNextInclusive', motionArgs: { forward: true }},
+    { keys: 'gN', type: 'motion', motion: 'findAndSelectNextInclusive', motionArgs: { forward: false }},
+    // Operator-Motion dual commands
+    { keys: 'x', type: 'operatorMotion', operator: 'delete', motion: 'moveByCharacters', motionArgs: { forward: true }, operatorMotionArgs: { visualLine: false }},
+    { keys: 'X', type: 'operatorMotion', operator: 'delete', motion: 'moveByCharacters', motionArgs: { forward: false }, operatorMotionArgs: { visualLine: true }},
+    { keys: 'D', type: 'operatorMotion', operator: 'delete', motion: 'moveToEol', motionArgs: { inclusive: true }, context: 'normal'},
+    { keys: 'D', type: 'operator', operator: 'delete', operatorArgs: { linewise: true }, context: 'visual'},
+    { keys: 'Y', type: 'operatorMotion', operator: 'yank', motion: 'expandToLine', motionArgs: { linewise: true }, context: 'normal'},
+    { keys: 'Y', type: 'operator', operator: 'yank', operatorArgs: { linewise: true }, context: 'visual'},
+    { keys: 'C', type: 'operatorMotion', operator: 'change', motion: 'moveToEol', motionArgs: { inclusive: true }, context: 'normal'},
+    { keys: 'C', type: 'operator', operator: 'change', operatorArgs: { linewise: true }, context: 'visual'},
+    { keys: '~', type: 'operatorMotion', operator: 'changeCase', motion: 'moveByCharacters', motionArgs: { forward: true }, operatorArgs: { shouldMoveCursor: true }, context: 'normal'},
+    { keys: '~', type: 'operator', operator: 'changeCase', context: 'visual'},
+    { keys: '<C-u>', type: 'operatorMotion', operator: 'delete', motion: 'moveToStartOfLine', context: 'insert' },
+    { keys: '<C-w>', type: 'operatorMotion', operator: 'delete', motion: 'moveByWords', motionArgs: { forward: false, wordEnd: false }, context: 'insert' },
+    //ignore C-w in normal mode
+    { keys: '<C-w>', type: 'idle', context: 'normal' },
+    // Actions
+    { keys: '<C-i>', type: 'action', action: 'jumpListWalk', actionArgs: { forward: true }},
+    { keys: '<C-o>', type: 'action', action: 'jumpListWalk', actionArgs: { forward: false }},
+    { keys: '<C-e>', type: 'action', action: 'scroll', actionArgs: { forward: true, linewise: true }},
+    { keys: '<C-y>', type: 'action', action: 'scroll', actionArgs: { forward: false, linewise: true }},
+    { keys: 'a', type: 'action', action: 'enterInsertMode', isEdit: true, actionArgs: { insertAt: 'charAfter' }, context: 'normal' },
+    { keys: 'A', type: 'action', action: 'enterInsertMode', isEdit: true, actionArgs: { insertAt: 'eol' }, context: 'normal' },
+    { keys: 'A', type: 'action', action: 'enterInsertMode', isEdit: true, actionArgs: { insertAt: 'endOfSelectedArea' }, context: 'visual' },
+    { keys: 'i', type: 'action', action: 'enterInsertMode', isEdit: true, actionArgs: { insertAt: 'inplace' }, context: 'normal' },
+    { keys: 'gi', type: 'action', action: 'enterInsertMode', isEdit: true, actionArgs: { insertAt: 'lastEdit' }, context: 'normal' },
+    { keys: 'I', type: 'action', action: 'enterInsertMode', isEdit: true, actionArgs: { insertAt: 'firstNonBlank'}, context: 'normal' },
+    { keys: 'gI', type: 'action', action: 'enterInsertMode', isEdit: true, actionArgs: { insertAt: 'bol'}, context: 'normal' },
+    { keys: 'I', type: 'action', action: 'enterInsertMode', isEdit: true, actionArgs: { insertAt: 'startOfSelectedArea' }, context: 'visual' },
+    { keys: 'o', type: 'action', action: 'newLineAndEnterInsertMode', isEdit: true, interlaceInsertRepeat: true, actionArgs: { after: true }, context: 'normal' },
+    { keys: 'O', type: 'action', action: 'newLineAndEnterInsertMode', isEdit: true, interlaceInsertRepeat: true, actionArgs: { after: false }, context: 'normal' },
+    { keys: 'v', type: 'action', action: 'toggleVisualMode' },
+    { keys: 'V', type: 'action', action: 'toggleVisualMode', actionArgs: { linewise: true }},
+    { keys: '<C-v>', type: 'action', action: 'toggleVisualMode', actionArgs: { blockwise: true }},
+    { keys: '<C-q>', type: 'action', action: 'toggleVisualMode', actionArgs: { blockwise: true }},
+    { keys: 'gv', type: 'action', action: 'reselectLastSelection' },
+    { keys: 'J', type: 'action', action: 'joinLines', isEdit: true },
+    { keys: 'gJ', type: 'action', action: 'joinLines', actionArgs: { keepSpaces: true }, isEdit: true },
+    { keys: 'p', type: 'action', action: 'paste', isEdit: true, actionArgs: { after: true, isEdit: true }},
+    { keys: 'P', type: 'action', action: 'paste', isEdit: true, actionArgs: { after: false, isEdit: true }},
+    { keys: 'r<character>', type: 'action', action: 'replace', isEdit: true },
+    { keys: '@<character>', type: 'action', action: 'replayMacro' },
+    { keys: 'q<character>', type: 'action', action: 'enterMacroRecordMode' },
+    // Handle Replace-mode as a special case of insert mode.
+    { keys: 'R', type: 'action', action: 'enterInsertMode', isEdit: true, actionArgs: { replace: true }, context: 'normal'},
+    { keys: 'R', type: 'operator', operator: 'change', operatorArgs: { linewise: true, fullLine: true }, context: 'visual', exitVisualBlock: true},
+    { keys: 'u', type: 'action', action: 'undo', context: 'normal' },
+    { keys: 'u', type: 'operator', operator: 'changeCase', operatorArgs: {toLower: true}, context: 'visual', isEdit: true },
+    { keys: 'U', type: 'operator', operator: 'changeCase', operatorArgs: {toLower: false}, context: 'visual', isEdit: true },
+    { keys: '<C-r>', type: 'action', action: 'redo' },
+    { keys: 'm<character>', type: 'action', action: 'setMark' },
+    { keys: '"<character>', type: 'action', action: 'setRegister' },
+    { keys: 'zz', type: 'action', action: 'scrollToCursor', actionArgs: { position: 'center' }},
+    { keys: 'z.', type: 'action', action: 'scrollToCursor', actionArgs: { position: 'center' }, motion: 'moveToFirstNonWhiteSpaceCharacter' },
+    { keys: 'zt', type: 'action', action: 'scrollToCursor', actionArgs: { position: 'top' }},
+    { keys: 'z<CR>', type: 'action', action: 'scrollToCursor', actionArgs: { position: 'top' }, motion: 'moveToFirstNonWhiteSpaceCharacter' },
+    { keys: 'zb', type: 'action', action: 'scrollToCursor', actionArgs: { position: 'bottom' }},
+    { keys: 'z-', type: 'action', action: 'scrollToCursor', actionArgs: { position: 'bottom' }, motion: 'moveToFirstNonWhiteSpaceCharacter' },
+    { keys: '.', type: 'action', action: 'repeatLastEdit' },
+    { keys: '<C-a>', type: 'action', action: 'incrementNumberToken', isEdit: true, actionArgs: {increase: true, backtrack: false}},
+    { keys: '<C-x>', type: 'action', action: 'incrementNumberToken', isEdit: true, actionArgs: {increase: false, backtrack: false}},
+    { keys: '<C-t>', type: 'action', action: 'indent', actionArgs: { indentRight: true }, context: 'insert' },
+    { keys: '<C-d>', type: 'action', action: 'indent', actionArgs: { indentRight: false }, context: 'insert' },
+    // Text object motions
+    { keys: 'a<character>', type: 'motion', motion: 'textObjectManipulation' },
+    { keys: 'i<character>', type: 'motion', motion: 'textObjectManipulation', motionArgs: { textObjectInner: true }},
+    // Search
+    { keys: '/', type: 'search', searchArgs: { forward: true, querySrc: 'prompt', toJumplist: true }},
+    { keys: '?', type: 'search', searchArgs: { forward: false, querySrc: 'prompt', toJumplist: true }},
+    { keys: '*', type: 'search', searchArgs: { forward: true, querySrc: 'wordUnderCursor', wholeWordOnly: true, toJumplist: true }},
+    { keys: '#', type: 'search', searchArgs: { forward: false, querySrc: 'wordUnderCursor', wholeWordOnly: true, toJumplist: true }},
+    { keys: 'g*', type: 'search', searchArgs: { forward: true, querySrc: 'wordUnderCursor', toJumplist: true }},
+    { keys: 'g#', type: 'search', searchArgs: { forward: false, querySrc: 'wordUnderCursor', toJumplist: true }},
+    // Ex command
+    { keys: ':', type: 'ex' }
+  ];
+  var defaultKeymapLength = defaultKeymap.length;
+
+  /**
+   * Ex commands
+   * Care must be taken when adding to the default Ex command map. For any
+   * pair of commands that have a shared prefix, at least one of their
+   * shortNames must not match the prefix of the other command.
+   */
+  var defaultExCommandMap = [
+    { name: 'colorscheme', shortName: 'colo' },
+    { name: 'map' },
+    { name: 'imap', shortName: 'im' },
+    { name: 'nmap', shortName: 'nm' },
+    { name: 'vmap', shortName: 'vm' },
+    { name: 'unmap' },
+    { name: 'write', shortName: 'w' },
+    { name: 'undo', shortName: 'u' },
+    { name: 'redo', shortName: 'red' },
+    { name: 'set', shortName: 'se' },
+    { name: 'setlocal', shortName: 'setl' },
+    { name: 'setglobal', shortName: 'setg' },
+    { name: 'sort', shortName: 'sor' },
+    { name: 'substitute', shortName: 's', possiblyAsync: true },
+    { name: 'nohlsearch', shortName: 'noh' },
+    { name: 'yank', shortName: 'y' },
+    { name: 'delmarks', shortName: 'delm' },
+    { name: 'registers', shortName: 'reg', excludeFromCommandHistory: true },
+    { name: 'vglobal', shortName: 'v' },
+    { name: 'global', shortName: 'g' }
+  ];
+
+    function enterVimMode(cm) {
+      cm.setOption('disableInput', true);
+      cm.setOption('showCursorWhenSelecting', false);
+      CodeMirror.signal(cm, "vim-mode-change", {mode: "normal"});
+      cm.on('cursorActivity', onCursorActivity);
+      maybeInitVimState(cm);
+      CodeMirror.on(cm.getInputField(), 'paste', getOnPasteFn(cm));
+    }
+
+    function leaveVimMode(cm) {
+      cm.setOption('disableInput', false);
+      cm.off('cursorActivity', onCursorActivity);
+      CodeMirror.off(cm.getInputField(), 'paste', getOnPasteFn(cm));
+      cm.state.vim = null;
+      if (highlightTimeout) clearTimeout(highlightTimeout);
+    }
+
+    function detachVimMap(cm, next) {
+      if (this == CodeMirror.keyMap.vim) {
+        cm.options.$customCursor = null;
+        CodeMirror.rmClass(cm.getWrapperElement(), "cm-fat-cursor");
+      }
+
+      if (!next || next.attach != attachVimMap)
+        leaveVimMode(cm);
+    }
+    function attachVimMap(cm, prev) {
+      if (this == CodeMirror.keyMap.vim) {
+        if (cm.curOp) cm.curOp.selectionChanged = true;
+        cm.options.$customCursor = transformCursor;
+        CodeMirror.addClass(cm.getWrapperElement(), "cm-fat-cursor");
+      }
+
+      if (!prev || prev.attach != attachVimMap)
+        enterVimMode(cm);
+    }
+
+    // Deprecated, simply setting the keymap works again.
+    CodeMirror.defineOption('vimMode', false, function(cm, val, prev) {
+      if (val && cm.getOption("keyMap") != "vim")
+        cm.setOption("keyMap", "vim");
+      else if (!val && prev != CodeMirror.Init && /^vim/.test(cm.getOption("keyMap")))
+        cm.setOption("keyMap", "default");
+    });
+
+    function cmKey(key, cm) {
+      if (!cm) { return undefined; }
+      if (this[key]) { return this[key]; }
+      var vimKey = cmKeyToVimKey(key);
+      if (!vimKey) {
+        return false;
+      }
+      var cmd = vimApi.findKey(cm, vimKey);
+      if (typeof cmd == 'function') {
+        CodeMirror.signal(cm, 'vim-keypress', vimKey);
+      }
+      return cmd;
+    }
+
+    var modifiers = {Shift:'S',Ctrl:'C',Alt:'A',Cmd:'D',Mod:'A',CapsLock:''};
+    var specialKeys = {Enter:'CR',Backspace:'BS',Delete:'Del',Insert:'Ins'};
+    function cmKeyToVimKey(key) {
+      if (key.charAt(0) == '\'') {
+        // Keypress character binding of format "'a'"
+        return key.charAt(1);
+      }
+      var pieces = key.split(/-(?!$)/);
+      var lastPiece = pieces[pieces.length - 1];
+      if (pieces.length == 1 && pieces[0].length == 1) {
+        // No-modifier bindings use literal character bindings above. Skip.
+        return false;
+      } else if (pieces.length == 2 && pieces[0] == 'Shift' && lastPiece.length == 1) {
+        // Ignore Shift+char bindings as they should be handled by literal character.
+        return false;
+      }
+      var hasCharacter = false;
+      for (var i = 0; i < pieces.length; i++) {
+        var piece = pieces[i];
+        if (piece in modifiers) { pieces[i] = modifiers[piece]; }
+        else { hasCharacter = true; }
+        if (piece in specialKeys) { pieces[i] = specialKeys[piece]; }
+      }
+      if (!hasCharacter) {
+        // Vim does not support modifier only keys.
+        return false;
+      }
+      // TODO: Current bindings expect the character to be lower case, but
+      // it looks like vim key notation uses upper case.
+      if (isUpperCase(lastPiece)) {
+        pieces[pieces.length - 1] = lastPiece.toLowerCase();
+      }
+      return '<' + pieces.join('-') + '>';
+    }
+
+    function getOnPasteFn(cm) {
+      var vim = cm.state.vim;
+      if (!vim.onPasteFn) {
+        vim.onPasteFn = function() {
+          if (!vim.insertMode) {
+            cm.setCursor(offsetCursor(cm.getCursor(), 0, 1));
+            actions.enterInsertMode(cm, {}, vim);
+          }
+        };
+      }
+      return vim.onPasteFn;
+    }
+
+    var numberRegex = /[\d]/;
+    var wordCharTest = [CodeMirror.isWordChar, function(ch) {
+      return ch && !CodeMirror.isWordChar(ch) && !/\s/.test(ch);
+    }], bigWordCharTest = [function(ch) {
+      return /\S/.test(ch);
+    }];
+    function makeKeyRange(start, size) {
+      var keys = [];
+      for (var i = start; i < start + size; i++) {
+        keys.push(String.fromCharCode(i));
+      }
+      return keys;
+    }
+    var upperCaseAlphabet = makeKeyRange(65, 26);
+    var lowerCaseAlphabet = makeKeyRange(97, 26);
+    var numbers = makeKeyRange(48, 10);
+    var validMarks = [].concat(upperCaseAlphabet, lowerCaseAlphabet, numbers, ['<', '>']);
+    var validRegisters = [].concat(upperCaseAlphabet, lowerCaseAlphabet, numbers, ['-', '"', '.', ':', '_', '/']);
+    var upperCaseChars;
+    try { upperCaseChars = new RegExp("^[\\p{Lu}]$", "u"); }
+    catch (_) { upperCaseChars = /^[A-Z]$/; }
+
+    function isLine(cm, line) {
+      return line >= cm.firstLine() && line <= cm.lastLine();
+    }
+    function isLowerCase(k) {
+      return (/^[a-z]$/).test(k);
+    }
+    function isMatchableSymbol(k) {
+      return '()[]{}'.indexOf(k) != -1;
+    }
+    function isNumber(k) {
+      return numberRegex.test(k);
+    }
+    function isUpperCase(k) {
+      return upperCaseChars.test(k);
+    }
+    function isWhiteSpaceString(k) {
+      return (/^\s*$/).test(k);
+    }
+    function isEndOfSentenceSymbol(k) {
+      return '.?!'.indexOf(k) != -1;
+    }
+    function inArray(val, arr) {
+      for (var i = 0; i < arr.length; i++) {
+        if (arr[i] == val) {
+          return true;
+        }
+      }
+      return false;
+    }
+
+    var options = {};
+    function defineOption(name, defaultValue, type, aliases, callback) {
+      if (defaultValue === undefined && !callback) {
+        throw Error('defaultValue is required unless callback is provided');
+      }
+      if (!type) { type = 'string'; }
+      options[name] = {
+        type: type,
+        defaultValue: defaultValue,
+        callback: callback
+      };
+      if (aliases) {
+        for (var i = 0; i < aliases.length; i++) {
+          options[aliases[i]] = options[name];
+        }
+      }
+      if (defaultValue) {
+        setOption(name, defaultValue);
+      }
+    }
+
+    function setOption(name, value, cm, cfg) {
+      var option = options[name];
+      cfg = cfg || {};
+      var scope = cfg.scope;
+      if (!option) {
+        return new Error('Unknown option: ' + name);
+      }
+      if (option.type == 'boolean') {
+        if (value && value !== true) {
+          return new Error('Invalid argument: ' + name + '=' + value);
+        } else if (value !== false) {
+          // Boolean options are set to true if value is not defined.
+          value = true;
+        }
+      }
+      if (option.callback) {
+        if (scope !== 'local') {
+          option.callback(value, undefined);
+        }
+        if (scope !== 'global' && cm) {
+          option.callback(value, cm);
+        }
+      } else {
+        if (scope !== 'local') {
+          option.value = option.type == 'boolean' ? !!value : value;
+        }
+        if (scope !== 'global' && cm) {
+          cm.state.vim.options[name] = {value: value};
+        }
+      }
+    }
+
+    function getOption(name, cm, cfg) {
+      var option = options[name];
+      cfg = cfg || {};
+      var scope = cfg.scope;
+      if (!option) {
+        return new Error('Unknown option: ' + name);
+      }
+      if (option.callback) {
+        var local = cm && option.callback(undefined, cm);
+        if (scope !== 'global' && local !== undefined) {
+          return local;
+        }
+        if (scope !== 'local') {
+          return option.callback();
+        }
+        return;
+      } else {
+        var local = (scope !== 'global') && (cm && cm.state.vim.options[name]);
+        return (local || (scope !== 'local') && option || {}).value;
+      }
+    }
+
+    defineOption('filetype', undefined, 'string', ['ft'], function(name, cm) {
+      // Option is local. Do nothing for global.
+      if (cm === undefined) {
+        return;
+      }
+      // The 'filetype' option proxies to the CodeMirror 'mode' option.
+      if (name === undefined) {
+        var mode = cm.getOption('mode');
+        return mode == 'null' ? '' : mode;
+      } else {
+        var mode = name == '' ? 'null' : name;
+        cm.setOption('mode', mode);
+      }
+    });
+
+    var createCircularJumpList = function() {
+      var size = 100;
+      var pointer = -1;
+      var head = 0;
+      var tail = 0;
+      var buffer = new Array(size);
+      function add(cm, oldCur, newCur) {
+        var current = pointer % size;
+        var curMark = buffer[current];
+        function useNextSlot(cursor) {
+          var next = ++pointer % size;
+          var trashMark = buffer[next];
+          if (trashMark) {
+            trashMark.clear();
+          }
+          buffer[next] = cm.setBookmark(cursor);
+        }
+        if (curMark) {
+          var markPos = curMark.find();
+          // avoid recording redundant cursor position
+          if (markPos && !cursorEqual(markPos, oldCur)) {
+            useNextSlot(oldCur);
+          }
+        } else {
+          useNextSlot(oldCur);
+        }
+        useNextSlot(newCur);
+        head = pointer;
+        tail = pointer - size + 1;
+        if (tail < 0) {
+          tail = 0;
+        }
+      }
+      function move(cm, offset) {
+        pointer += offset;
+        if (pointer > head) {
+          pointer = head;
+        } else if (pointer < tail) {
+          pointer = tail;
+        }
+        var mark = buffer[(size + pointer) % size];
+        // skip marks that are temporarily removed from text buffer
+        if (mark && !mark.find()) {
+          var inc = offset > 0 ? 1 : -1;
+          var newCur;
+          var oldCur = cm.getCursor();
+          do {
+            pointer += inc;
+            mark = buffer[(size + pointer) % size];
+            // skip marks that are the same as current position
+            if (mark &&
+                (newCur = mark.find()) &&
+                !cursorEqual(oldCur, newCur)) {
+              break;
+            }
+          } while (pointer < head && pointer > tail);
+        }
+        return mark;
+      }
+      function find(cm, offset) {
+        var oldPointer = pointer;
+        var mark = move(cm, offset);
+        pointer = oldPointer;
+        return mark && mark.find();
+      }
+      return {
+        cachedCursor: undefined, //used for # and * jumps
+        add: add,
+        find: find,
+        move: move
+      };
+    };
+
+    // Returns an object to track the changes associated insert mode.  It
+    // clones the object that is passed in, or creates an empty object one if
+    // none is provided.
+    var createInsertModeChanges = function(c) {
+      if (c) {
+        // Copy construction
+        return {
+          changes: c.changes,
+          expectCursorActivityForChange: c.expectCursorActivityForChange
+        };
+      }
+      return {
+        // Change list
+        changes: [],
+        // Set to true on change, false on cursorActivity.
+        expectCursorActivityForChange: false
+      };
+    };
+
+    function MacroModeState() {
+      this.latestRegister = undefined;
+      this.isPlaying = false;
+      this.isRecording = false;
+      this.replaySearchQueries = [];
+      this.onRecordingDone = undefined;
+      this.lastInsertModeChanges = createInsertModeChanges();
+    }
+    MacroModeState.prototype = {
+      exitMacroRecordMode: function() {
+        var macroModeState = vimGlobalState.macroModeState;
+        if (macroModeState.onRecordingDone) {
+          macroModeState.onRecordingDone(); // close dialog
+        }
+        macroModeState.onRecordingDone = undefined;
+        macroModeState.isRecording = false;
+      },
+      enterMacroRecordMode: function(cm, registerName) {
+        var register =
+            vimGlobalState.registerController.getRegister(registerName);
+        if (register) {
+          register.clear();
+          this.latestRegister = registerName;
+          if (cm.openDialog) {
+            var template = dom('span', {class: 'cm-vim-message'}, 'recording @' + registerName);
+            this.onRecordingDone = cm.openDialog(template, null, {bottom:true});
+          }
+          this.isRecording = true;
+        }
+      }
+    };
+
+    function maybeInitVimState(cm) {
+      if (!cm.state.vim) {
+        // Store instance state in the CodeMirror object.
+        cm.state.vim = {
+          inputState: new InputState(),
+          // Vim's input state that triggered the last edit, used to repeat
+          // motions and operators with '.'.
+          lastEditInputState: undefined,
+          // Vim's action command before the last edit, used to repeat actions
+          // with '.' and insert mode repeat.
+          lastEditActionCommand: undefined,
+          // When using jk for navigation, if you move from a longer line to a
+          // shorter line, the cursor may clip to the end of the shorter line.
+          // If j is pressed again and cursor goes to the next line, the
+          // cursor should go back to its horizontal position on the longer
+          // line if it can. This is to keep track of the horizontal position.
+          lastHPos: -1,
+          // Doing the same with screen-position for gj/gk
+          lastHSPos: -1,
+          // The last motion command run. Cleared if a non-motion command gets
+          // executed in between.
+          lastMotion: null,
+          marks: {},
+          insertMode: false,
+          // Repeat count for changes made in insert mode, triggered by key
+          // sequences like 3,i. Only exists when insertMode is true.
+          insertModeRepeat: undefined,
+          visualMode: false,
+          // If we are in visual line mode. No effect if visualMode is false.
+          visualLine: false,
+          visualBlock: false,
+          lastSelection: null,
+          lastPastedText: null,
+          sel: {},
+          // Buffer-local/window-local values of vim options.
+          options: {}
+        };
+      }
+      return cm.state.vim;
+    }
+    var vimGlobalState;
+    function resetVimGlobalState() {
+      vimGlobalState = {
+        // The current search query.
+        searchQuery: null,
+        // Whether we are searching backwards.
+        searchIsReversed: false,
+        // Replace part of the last substituted pattern
+        lastSubstituteReplacePart: undefined,
+        jumpList: createCircularJumpList(),
+        macroModeState: new MacroModeState,
+        // Recording latest f, t, F or T motion command.
+        lastCharacterSearch: {increment:0, forward:true, selectedCharacter:''},
+        registerController: new RegisterController({}),
+        // search history buffer
+        searchHistoryController: new HistoryController(),
+        // ex Command history buffer
+        exCommandHistoryController : new HistoryController()
+      };
+      for (var optionName in options) {
+        var option = options[optionName];
+        option.value = option.defaultValue;
+      }
+    }
+
+    var lastInsertModeKeyTimer;
+    var vimApi = {
+      enterVimMode: enterVimMode,
+      buildKeyMap: function() {
+        // TODO: Convert keymap into dictionary format for fast lookup.
+      },
+      // Testing hook, though it might be useful to expose the register
+      // controller anyway.
+      getRegisterController: function() {
+        return vimGlobalState.registerController;
+      },
+      // Testing hook.
+      resetVimGlobalState_: resetVimGlobalState,
+
+      // Testing hook.
+      getVimGlobalState_: function() {
+        return vimGlobalState;
+      },
+
+      // Testing hook.
+      maybeInitVimState_: maybeInitVimState,
+
+      suppressErrorLogging: false,
+
+      InsertModeKey: InsertModeKey,
+      map: function(lhs, rhs, ctx) {
+        // Add user defined key bindings.
+        exCommandDispatcher.map(lhs, rhs, ctx);
+      },
+      unmap: function(lhs, ctx) {
+        return exCommandDispatcher.unmap(lhs, ctx);
+      },
+      // Non-recursive map function.
+      // NOTE: This will not create mappings to key maps that aren't present
+      // in the default key map. See TODO at bottom of function.
+      noremap: function(lhs, rhs, ctx) {
+        function toCtxArray(ctx) {
+          return ctx ? [ctx] : ['normal', 'insert', 'visual'];
+        }
+        var ctxsToMap = toCtxArray(ctx);
+        // Look through all actual defaults to find a map candidate.
+        var actualLength = defaultKeymap.length, origLength = defaultKeymapLength;
+        for (var i = actualLength - origLength;
+             i < actualLength && ctxsToMap.length;
+             i++) {
+          var mapping = defaultKeymap[i];
+          // Omit mappings that operate in the wrong context(s) and those of invalid type.
+          if (mapping.keys == rhs &&
+              (!ctx || !mapping.context || mapping.context === ctx) &&
+              mapping.type.substr(0, 2) !== 'ex' &&
+              mapping.type.substr(0, 3) !== 'key') {
+            // Make a shallow copy of the original keymap entry.
+            var newMapping = {};
+            for (var key in mapping) {
+              newMapping[key] = mapping[key];
+            }
+            // Modify it point to the new mapping with the proper context.
+            newMapping.keys = lhs;
+            if (ctx && !newMapping.context) {
+              newMapping.context = ctx;
+            }
+            // Add it to the keymap with a higher priority than the original.
+            this._mapCommand(newMapping);
+            // Record the mapped contexts as complete.
+            var mappedCtxs = toCtxArray(mapping.context);
+            ctxsToMap = ctxsToMap.filter(function(el) { return mappedCtxs.indexOf(el) === -1; });
+          }
+        }
+        // TODO: Create non-recursive keyToKey mappings for the unmapped contexts once those exist.
+      },
+      // Remove all user-defined mappings for the provided context.
+      mapclear: function(ctx) {
+        // Partition the existing keymap into user-defined and true defaults.
+        var actualLength = defaultKeymap.length,
+            origLength = defaultKeymapLength;
+        var userKeymap = defaultKeymap.slice(0, actualLength - origLength);
+        defaultKeymap = defaultKeymap.slice(actualLength - origLength);
+        if (ctx) {
+          // If a specific context is being cleared, we need to keep mappings
+          // from all other contexts.
+          for (var i = userKeymap.length - 1; i >= 0; i--) {
+            var mapping = userKeymap[i];
+            if (ctx !== mapping.context) {
+              if (mapping.context) {
+                this._mapCommand(mapping);
+              } else {
+                // `mapping` applies to all contexts so create keymap copies
+                // for each context except the one being cleared.
+                var contexts = ['normal', 'insert', 'visual'];
+                for (var j in contexts) {
+                  if (contexts[j] !== ctx) {
+                    var newMapping = {};
+                    for (var key in mapping) {
+                      newMapping[key] = mapping[key];
+                    }
+                    newMapping.context = contexts[j];
+                    this._mapCommand(newMapping);
+                  }
+                }
+              }
+            }
+          }
+        }
+      },
+      // TODO: Expose setOption and getOption as instance methods. Need to decide how to namespace
+      // them, or somehow make them work with the existing CodeMirror setOption/getOption API.
+      setOption: setOption,
+      getOption: getOption,
+      defineOption: defineOption,
+      defineEx: function(name, prefix, func){
+        if (!prefix) {
+          prefix = name;
+        } else if (name.indexOf(prefix) !== 0) {
+          throw new Error('(Vim.defineEx) "'+prefix+'" is not a prefix of "'+name+'", command not registered');
+        }
+        exCommands[name]=func;
+        exCommandDispatcher.commandMap_[prefix]={name:name, shortName:prefix, type:'api'};
+      },
+      handleKey: function (cm, key, origin) {
+        var command = this.findKey(cm, key, origin);
+        if (typeof command === 'function') {
+          return command();
+        }
+      },
+      multiSelectHandleKey: multiSelectHandleKey,
+
+      /**
+       * This is the outermost function called by CodeMirror, after keys have
+       * been mapped to their Vim equivalents.
+       *
+       * Finds a command based on the key (and cached keys if there is a
+       * multi-key sequence). Returns `undefined` if no key is matched, a noop
+       * function if a partial match is found (multi-key), and a function to
+       * execute the bound command if a a key is matched. The function always
+       * returns true.
+       */
+      findKey: function(cm, key, origin) {
+        var vim = maybeInitVimState(cm);
+        function handleMacroRecording() {
+          var macroModeState = vimGlobalState.macroModeState;
+          if (macroModeState.isRecording) {
+            if (key == 'q') {
+              macroModeState.exitMacroRecordMode();
+              clearInputState(cm);
+              return true;
+            }
+            if (origin != 'mapping') {
+              logKey(macroModeState, key);
+            }
+          }
+        }
+        function handleEsc() {
+          if (key == '<Esc>') {
+            if (vim.visualMode) {
+              // Get back to normal mode.
+              exitVisualMode(cm);
+            } else if (vim.insertMode) {
+              // Get back to normal mode.
+              exitInsertMode(cm);
+            } else {
+              // We're already in normal mode. Let '<Esc>' be handled normally.
+              return;
+            }
+            clearInputState(cm);
+            return true;
+          }
+        }
+        function doKeyToKey(keys) {
+          // TODO: prevent infinite recursion.
+          var match;
+          while (keys) {
+            // Pull off one command key, which is either a single character
+            // or a special sequence wrapped in '<' and '>', e.g. '<Space>'.
+            match = (/<\w+-.+?>|<\w+>|./).exec(keys);
+            key = match[0];
+            keys = keys.substring(match.index + key.length);
+            vimApi.handleKey(cm, key, 'mapping');
+          }
+        }
+
+        function handleKeyInsertMode() {
+          if (handleEsc()) { return true; }
+          var keys = vim.inputState.keyBuffer = vim.inputState.keyBuffer + key;
+          var keysAreChars = key.length == 1;
+          var match = commandDispatcher.matchCommand(keys, defaultKeymap, vim.inputState, 'insert');
+          // Need to check all key substrings in insert mode.
+          while (keys.length > 1 && match.type != 'full') {
+            var keys = vim.inputState.keyBuffer = keys.slice(1);
+            var thisMatch = commandDispatcher.matchCommand(keys, defaultKeymap, vim.inputState, 'insert');
+            if (thisMatch.type != 'none') { match = thisMatch; }
+          }
+          if (match.type == 'none') { clearInputState(cm); return false; }
+          else if (match.type == 'partial') {
+            if (lastInsertModeKeyTimer) { window.clearTimeout(lastInsertModeKeyTimer); }
+            lastInsertModeKeyTimer = window.setTimeout(
+              function() { if (vim.insertMode && vim.inputState.keyBuffer) { clearInputState(cm); } },
+              getOption('insertModeEscKeysTimeout'));
+            return !keysAreChars;
+          }
+
+          if (lastInsertModeKeyTimer) { window.clearTimeout(lastInsertModeKeyTimer); }
+          if (keysAreChars) {
+            var selections = cm.listSelections();
+            for (var i = 0; i < selections.length; i++) {
+              var here = selections[i].head;
+              cm.replaceRange('', offsetCursor(here, 0, -(keys.length - 1)), here, '+input');
+            }
+            vimGlobalState.macroModeState.lastInsertModeChanges.changes.pop();
+          }
+          clearInputState(cm);
+          return match.command;
+        }
+
+        function handleKeyNonInsertMode() {
+          if (handleMacroRecording() || handleEsc()) { return true; }
+
+          var keys = vim.inputState.keyBuffer = vim.inputState.keyBuffer + key;
+          if (/^[1-9]\d*$/.test(keys)) { return true; }
+
+          var keysMatcher = /^(\d*)(.*)$/.exec(keys);
+          if (!keysMatcher) { clearInputState(cm); return false; }
+          var context = vim.visualMode ? 'visual' :
+                                         'normal';
+          var mainKey = keysMatcher[2] || keysMatcher[1];
+          if (vim.inputState.operatorShortcut && vim.inputState.operatorShortcut.slice(-1) == mainKey) {
+            // multikey operators act linewise by repeating only the last character
+            mainKey = vim.inputState.operatorShortcut;
+          }
+          var match = commandDispatcher.matchCommand(mainKey, defaultKeymap, vim.inputState, context);
+          if (match.type == 'none') { clearInputState(cm); return false; }
+          else if (match.type == 'partial') { return true; }
+          else if (match.type == 'clear') { clearInputState(cm); return true; }
+
+          vim.inputState.keyBuffer = '';
+          keysMatcher = /^(\d*)(.*)$/.exec(keys);
+          if (keysMatcher[1] && keysMatcher[1] != '0') {
+            vim.inputState.pushRepeatDigit(keysMatcher[1]);
+          }
+          return match.command;
+        }
+
+        var command;
+        if (vim.insertMode) { command = handleKeyInsertMode(); }
+        else { command = handleKeyNonInsertMode(); }
+        if (command === false) {
+          return !vim.insertMode && key.length === 1 ? function() { return true; } : undefined;
+        } else if (command === true) {
+          // TODO: Look into using CodeMirror's multi-key handling.
+          // Return no-op since we are caching the key. Counts as handled, but
+          // don't want act on it just yet.
+          return function() { return true; };
+        } else {
+          return function() {
+            return cm.operation(function() {
+              cm.curOp.isVimOp = true;
+              try {
+                if (command.type == 'keyToKey') {
+                  doKeyToKey(command.toKeys);
+                } else {
+                  commandDispatcher.processCommand(cm, vim, command);
+                }
+              } catch (e) {
+                // clear VIM state in case it's in a bad state.
+                cm.state.vim = undefined;
+                maybeInitVimState(cm);
+                if (!vimApi.suppressErrorLogging) {
+                  console['log'](e);
+                }
+                throw e;
+              }
+              return true;
+            });
+          };
+        }
+      },
+      handleEx: function(cm, input) {
+        exCommandDispatcher.processCommand(cm, input);
+      },
+
+      defineMotion: defineMotion,
+      defineAction: defineAction,
+      defineOperator: defineOperator,
+      mapCommand: mapCommand,
+      _mapCommand: _mapCommand,
+
+      defineRegister: defineRegister,
+
+      exitVisualMode: exitVisualMode,
+      exitInsertMode: exitInsertMode
+    };
+
+    // Represents the current input state.
+    function InputState() {
+      this.prefixRepeat = [];
+      this.motionRepeat = [];
+
+      this.operator = null;
+      this.operatorArgs = null;
+      this.motion = null;
+      this.motionArgs = null;
+      this.keyBuffer = []; // For matching multi-key commands.
+      this.registerName = null; // Defaults to the unnamed register.
+    }
+    InputState.prototype.pushRepeatDigit = function(n) {
+      if (!this.operator) {
+        this.prefixRepeat = this.prefixRepeat.concat(n);
+      } else {
+        this.motionRepeat = this.motionRepeat.concat(n);
+      }
+    };
+    InputState.prototype.getRepeat = function() {
+      var repeat = 0;
+      if (this.prefixRepeat.length > 0 || this.motionRepeat.length > 0) {
+        repeat = 1;
+        if (this.prefixRepeat.length > 0) {
+          repeat *= parseInt(this.prefixRepeat.join(''), 10);
+        }
+        if (this.motionRepeat.length > 0) {
+          repeat *= parseInt(this.motionRepeat.join(''), 10);
+        }
+      }
+      return repeat;
+    };
+
+    function clearInputState(cm, reason) {
+      cm.state.vim.inputState = new InputState();
+      CodeMirror.signal(cm, 'vim-command-done', reason);
+    }
+
+    /*
+     * Register stores information about copy and paste registers.  Besides
+     * text, a register must store whether it is linewise (i.e., when it is
+     * pasted, should it insert itself into a new line, or should the text be
+     * inserted at the cursor position.)
+     */
+    function Register(text, linewise, blockwise) {
+      this.clear();
+      this.keyBuffer = [text || ''];
+      this.insertModeChanges = [];
+      this.searchQueries = [];
+      this.linewise = !!linewise;
+      this.blockwise = !!blockwise;
+    }
+    Register.prototype = {
+      setText: function(text, linewise, blockwise) {
+        this.keyBuffer = [text || ''];
+        this.linewise = !!linewise;
+        this.blockwise = !!blockwise;
+      },
+      pushText: function(text, linewise) {
+        // if this register has ever been set to linewise, use linewise.
+        if (linewise) {
+          if (!this.linewise) {
+            this.keyBuffer.push('\n');
+          }
+          this.linewise = true;
+        }
+        this.keyBuffer.push(text);
+      },
+      pushInsertModeChanges: function(changes) {
+        this.insertModeChanges.push(createInsertModeChanges(changes));
+      },
+      pushSearchQuery: function(query) {
+        this.searchQueries.push(query);
+      },
+      clear: function() {
+        this.keyBuffer = [];
+        this.insertModeChanges = [];
+        this.searchQueries = [];
+        this.linewise = false;
+      },
+      toString: function() {
+        return this.keyBuffer.join('');
+      }
+    };
+
+    /**
+     * Defines an external register.
+     *
+     * The name should be a single character that will be used to reference the register.
+     * The register should support setText, pushText, clear, and toString(). See Register
+     * for a reference implementation.
+     */
+    function defineRegister(name, register) {
+      var registers = vimGlobalState.registerController.registers;
+      if (!name || name.length != 1) {
+        throw Error('Register name must be 1 character');
+      }
+      if (registers[name]) {
+        throw Error('Register already defined ' + name);
+      }
+      registers[name] = register;
+      validRegisters.push(name);
+    }
+
+    /*
+     * vim registers allow you to keep many independent copy and paste buffers.
+     * See http://usevim.com/2012/04/13/registers/ for an introduction.
+     *
+     * RegisterController keeps the state of all the registers.  An initial
+     * state may be passed in.  The unnamed register '"' will always be
+     * overridden.
+     */
+    function RegisterController(registers) {
+      this.registers = registers;
+      this.unnamedRegister = registers['"'] = new Register();
+      registers['.'] = new Register();
+      registers[':'] = new Register();
+      registers['/'] = new Register();
+    }
+    RegisterController.prototype = {
+      pushText: function(registerName, operator, text, linewise, blockwise) {
+        // The black hole register, "_, means delete/yank to nowhere.
+        if (registerName === '_') return;
+        if (linewise && text.charAt(text.length - 1) !== '\n'){
+          text += '\n';
+        }
+        // Lowercase and uppercase registers refer to the same register.
+        // Uppercase just means append.
+        var register = this.isValidRegister(registerName) ?
+            this.getRegister(registerName) : null;
+        // if no register/an invalid register was specified, things go to the
+        // default registers
+        if (!register) {
+          switch (operator) {
+            case 'yank':
+              // The 0 register contains the text from the most recent yank.
+              this.registers['0'] = new Register(text, linewise, blockwise);
+              break;
+            case 'delete':
+            case 'change':
+              if (text.indexOf('\n') == -1) {
+                // Delete less than 1 line. Update the small delete register.
+                this.registers['-'] = new Register(text, linewise);
+              } else {
+                // Shift down the contents of the numbered registers and put the
+                // deleted text into register 1.
+                this.shiftNumericRegisters_();
+                this.registers['1'] = new Register(text, linewise);
+              }
+              break;
+          }
+          // Make sure the unnamed register is set to what just happened
+          this.unnamedRegister.setText(text, linewise, blockwise);
+          return;
+        }
+
+        // If we've gotten to this point, we've actually specified a register
+        var append = isUpperCase(registerName);
+        if (append) {
+          register.pushText(text, linewise);
+        } else {
+          register.setText(text, linewise, blockwise);
+        }
+        // The unnamed register always has the same value as the last used
+        // register.
+        this.unnamedRegister.setText(register.toString(), linewise);
+      },
+      // Gets the register named @name.  If one of @name doesn't already exist,
+      // create it.  If @name is invalid, return the unnamedRegister.
+      getRegister: function(name) {
+        if (!this.isValidRegister(name)) {
+          return this.unnamedRegister;
+        }
+        name = name.toLowerCase();
+        if (!this.registers[name]) {
+          this.registers[name] = new Register();
+        }
+        return this.registers[name];
+      },
+      isValidRegister: function(name) {
+        return name && inArray(name, validRegisters);
+      },
+      shiftNumericRegisters_: function() {
+        for (var i = 9; i >= 2; i--) {
+          this.registers[i] = this.getRegister('' + (i - 1));
+        }
+      }
+    };
+    function HistoryController() {
+        this.historyBuffer = [];
+        this.iterator = 0;
+        this.initialPrefix = null;
+    }
+    HistoryController.prototype = {
+      // the input argument here acts a user entered prefix for a small time
+      // until we start autocompletion in which case it is the autocompleted.
+      nextMatch: function (input, up) {
+        var historyBuffer = this.historyBuffer;
+        var dir = up ? -1 : 1;
+        if (this.initialPrefix === null) this.initialPrefix = input;
+        for (var i = this.iterator + dir; up ? i >= 0 : i < historyBuffer.length; i+= dir) {
+          var element = historyBuffer[i];
+          for (var j = 0; j <= element.length; j++) {
+            if (this.initialPrefix == element.substring(0, j)) {
+              this.iterator = i;
+              return element;
+            }
+          }
+        }
+        // should return the user input in case we reach the end of buffer.
+        if (i >= historyBuffer.length) {
+          this.iterator = historyBuffer.length;
+          return this.initialPrefix;
+        }
+        // return the last autocompleted query or exCommand as it is.
+        if (i < 0 ) return input;
+      },
+      pushInput: function(input) {
+        var index = this.historyBuffer.indexOf(input);
+        if (index > -1) this.historyBuffer.splice(index, 1);
+        if (input.length) this.historyBuffer.push(input);
+      },
+      reset: function() {
+        this.initialPrefix = null;
+        this.iterator = this.historyBuffer.length;
+      }
+    };
+    var commandDispatcher = {
+      matchCommand: function(keys, keyMap, inputState, context) {
+        var matches = commandMatches(keys, keyMap, context, inputState);
+        if (!matches.full && !matches.partial) {
+          return {type: 'none'};
+        } else if (!matches.full && matches.partial) {
+          return {type: 'partial'};
+        }
+
+        var bestMatch;
+        for (var i = 0; i < matches.full.length; i++) {
+          var match = matches.full[i];
+          if (!bestMatch) {
+            bestMatch = match;
+          }
+        }
+        if (bestMatch.keys.slice(-11) == '<character>') {
+          var character = lastChar(keys);
+          if (!character || character.length > 1) return {type: 'clear'};
+          inputState.selectedCharacter = character;
+        }
+        return {type: 'full', command: bestMatch};
+      },
+      processCommand: function(cm, vim, command) {
+        vim.inputState.repeatOverride = command.repeatOverride;
+        switch (command.type) {
+          case 'motion':
+            this.processMotion(cm, vim, command);
+            break;
+          case 'operator':
+            this.processOperator(cm, vim, command);
+            break;
+          case 'operatorMotion':
+            this.processOperatorMotion(cm, vim, command);
+            break;
+          case 'action':
+            this.processAction(cm, vim, command);
+            break;
+          case 'search':
+            this.processSearch(cm, vim, command);
+            break;
+          case 'ex':
+          case 'keyToEx':
+            this.processEx(cm, vim, command);
+            break;
+        }
+      },
+      processMotion: function(cm, vim, command) {
+        vim.inputState.motion = command.motion;
+        vim.inputState.motionArgs = copyArgs(command.motionArgs);
+        this.evalInput(cm, vim);
+      },
+      processOperator: function(cm, vim, command) {
+        var inputState = vim.inputState;
+        if (inputState.operator) {
+          if (inputState.operator == command.operator) {
+            // Typing an operator twice like 'dd' makes the operator operate
+            // linewise
+            inputState.motion = 'expandToLine';
+            inputState.motionArgs = { linewise: true };
+            this.evalInput(cm, vim);
+            return;
+          } else {
+            // 2 different operators in a row doesn't make sense.
+            clearInputState(cm);
+          }
+        }
+        inputState.operator = command.operator;
+        inputState.operatorArgs = copyArgs(command.operatorArgs);
+        if (command.keys.length > 1) {
+          inputState.operatorShortcut = command.keys;
+        }
+        if (command.exitVisualBlock) {
+            vim.visualBlock = false;
+            updateCmSelection(cm);
+        }
+        if (vim.visualMode) {
+          // Operating on a selection in visual mode. We don't need a motion.
+          this.evalInput(cm, vim);
+        }
+      },
+      processOperatorMotion: function(cm, vim, command) {
+        var visualMode = vim.visualMode;
+        var operatorMotionArgs = copyArgs(command.operatorMotionArgs);
+        if (operatorMotionArgs) {
+          // Operator motions may have special behavior in visual mode.
+          if (visualMode && operatorMotionArgs.visualLine) {
+            vim.visualLine = true;
+          }
+        }
+        this.processOperator(cm, vim, command);
+        if (!visualMode) {
+          this.processMotion(cm, vim, command);
+        }
+      },
+      processAction: function(cm, vim, command) {
+        var inputState = vim.inputState;
+        var repeat = inputState.getRepeat();
+        var repeatIsExplicit = !!repeat;
+        var actionArgs = copyArgs(command.actionArgs) || {};
+        if (inputState.selectedCharacter) {
+          actionArgs.selectedCharacter = inputState.selectedCharacter;
+        }
+        // Actions may or may not have motions and operators. Do these first.
+        if (command.operator) {
+          this.processOperator(cm, vim, command);
+        }
+        if (command.motion) {
+          this.processMotion(cm, vim, command);
+        }
+        if (command.motion || command.operator) {
+          this.evalInput(cm, vim);
+        }
+        actionArgs.repeat = repeat || 1;
+        actionArgs.repeatIsExplicit = repeatIsExplicit;
+        actionArgs.registerName = inputState.registerName;
+        clearInputState(cm);
+        vim.lastMotion = null;
+        if (command.isEdit) {
+          this.recordLastEdit(vim, inputState, command);
+        }
+        actions[command.action](cm, actionArgs, vim);
+      },
+      processSearch: function(cm, vim, command) {
+        if (!cm.getSearchCursor) {
+          // Search depends on SearchCursor.
+          return;
+        }
+        var forward = command.searchArgs.forward;
+        var wholeWordOnly = command.searchArgs.wholeWordOnly;
+        getSearchState(cm).setReversed(!forward);
+        var promptPrefix = (forward) ? '/' : '?';
+        var originalQuery = getSearchState(cm).getQuery();
+        var originalScrollPos = cm.getScrollInfo();
+        function handleQuery(query, ignoreCase, smartCase) {
+          vimGlobalState.searchHistoryController.pushInput(query);
+          vimGlobalState.searchHistoryController.reset();
+          try {
+            updateSearchQuery(cm, query, ignoreCase, smartCase);
+          } catch (e) {
+            showConfirm(cm, 'Invalid regex: ' + query);
+            clearInputState(cm);
+            return;
+          }
+          commandDispatcher.processMotion(cm, vim, {
+            type: 'motion',
+            motion: 'findNext',
+            motionArgs: { forward: true, toJumplist: command.searchArgs.toJumplist }
+          });
+        }
+        function onPromptClose(query) {
+          cm.scrollTo(originalScrollPos.left, originalScrollPos.top);
+          handleQuery(query, true /** ignoreCase */, true /** smartCase */);
+          var macroModeState = vimGlobalState.macroModeState;
+          if (macroModeState.isRecording) {
+            logSearchQuery(macroModeState, query);
+          }
+        }
+        function onPromptKeyUp(e, query, close) {
+          var keyName = CodeMirror.keyName(e), up, offset;
+          if (keyName == 'Up' || keyName == 'Down') {
+            up = keyName == 'Up' ? true : false;
+            offset = e.target ? e.target.selectionEnd : 0;
+            query = vimGlobalState.searchHistoryController.nextMatch(query, up) || '';
+            close(query);
+            if (offset && e.target) e.target.selectionEnd = e.target.selectionStart = Math.min(offset, e.target.value.length);
+          } else {
+            if ( keyName != 'Left' && keyName != 'Right' && keyName != 'Ctrl' && keyName != 'Alt' && keyName != 'Shift')
+              vimGlobalState.searchHistoryController.reset();
+          }
+          var parsedQuery;
+          try {
+            parsedQuery = updateSearchQuery(cm, query,
+                true /** ignoreCase */, true /** smartCase */);
+          } catch (e) {
+            // Swallow bad regexes for incremental search.
+          }
+          if (parsedQuery) {
+            cm.scrollIntoView(findNext(cm, !forward, parsedQuery), 30);
+          } else {
+            clearSearchHighlight(cm);
+            cm.scrollTo(originalScrollPos.left, originalScrollPos.top);
+          }
+        }
+        function onPromptKeyDown(e, query, close) {
+          var keyName = CodeMirror.keyName(e);
+          if (keyName == 'Esc' || keyName == 'Ctrl-C' || keyName == 'Ctrl-[' ||
+              (keyName == 'Backspace' && query == '')) {
+            vimGlobalState.searchHistoryController.pushInput(query);
+            vimGlobalState.searchHistoryController.reset();
+            updateSearchQuery(cm, originalQuery);
+            clearSearchHighlight(cm);
+            cm.scrollTo(originalScrollPos.left, originalScrollPos.top);
+            CodeMirror.e_stop(e);
+            clearInputState(cm);
+            close();
+            cm.focus();
+          } else if (keyName == 'Up' || keyName == 'Down') {
+            CodeMirror.e_stop(e);
+          } else if (keyName == 'Ctrl-U') {
+            // Ctrl-U clears input.
+            CodeMirror.e_stop(e);
+            close('');
+          }
+        }
+        switch (command.searchArgs.querySrc) {
+          case 'prompt':
+            var macroModeState = vimGlobalState.macroModeState;
+            if (macroModeState.isPlaying) {
+              var query = macroModeState.replaySearchQueries.shift();
+              handleQuery(query, true /** ignoreCase */, false /** smartCase */);
+            } else {
+              showPrompt(cm, {
+                  onClose: onPromptClose,
+                  prefix: promptPrefix,
+                  desc: '(JavaScript regexp)',
+                  onKeyUp: onPromptKeyUp,
+                  onKeyDown: onPromptKeyDown
+              });
+            }
+            break;
+          case 'wordUnderCursor':
+            var word = expandWordUnderCursor(cm, false /** inclusive */,
+                true /** forward */, false /** bigWord */,
+                true /** noSymbol */);
+            var isKeyword = true;
+            if (!word) {
+              word = expandWordUnderCursor(cm, false /** inclusive */,
+                  true /** forward */, false /** bigWord */,
+                  false /** noSymbol */);
+              isKeyword = false;
+            }
+            if (!word) {
+              return;
+            }
+            var query = cm.getLine(word.start.line).substring(word.start.ch,
+                word.end.ch);
+            if (isKeyword && wholeWordOnly) {
+                query = '\\b' + query + '\\b';
+            } else {
+              query = escapeRegex(query);
+            }
+
+            // cachedCursor is used to save the old position of the cursor
+            // when * or # causes vim to seek for the nearest word and shift
+            // the cursor before entering the motion.
+            vimGlobalState.jumpList.cachedCursor = cm.getCursor();
+            cm.setCursor(word.start);
+
+            handleQuery(query, true /** ignoreCase */, false /** smartCase */);
+            break;
+        }
+      },
+      processEx: function(cm, vim, command) {
+        function onPromptClose(input) {
+          // Give the prompt some time to close so that if processCommand shows
+          // an error, the elements don't overlap.
+          vimGlobalState.exCommandHistoryController.pushInput(input);
+          vimGlobalState.exCommandHistoryController.reset();
+          exCommandDispatcher.processCommand(cm, input);
+          clearInputState(cm);
+        }
+        function onPromptKeyDown(e, input, close) {
+          var keyName = CodeMirror.keyName(e), up, offset;
+          if (keyName == 'Esc' || keyName == 'Ctrl-C' || keyName == 'Ctrl-[' ||
+              (keyName == 'Backspace' && input == '')) {
+            vimGlobalState.exCommandHistoryController.pushInput(input);
+            vimGlobalState.exCommandHistoryController.reset();
+            CodeMirror.e_stop(e);
+            clearInputState(cm);
+            close();
+            cm.focus();
+          }
+          if (keyName == 'Up' || keyName == 'Down') {
+            CodeMirror.e_stop(e);
+            up = keyName == 'Up' ? true : false;
+            offset = e.target ? e.target.selectionEnd : 0;
+            input = vimGlobalState.exCommandHistoryController.nextMatch(input, up) || '';
+            close(input);
+            if (offset && e.target) e.target.selectionEnd = e.target.selectionStart = Math.min(offset, e.target.value.length);
+          } else if (keyName == 'Ctrl-U') {
+            // Ctrl-U clears input.
+            CodeMirror.e_stop(e);
+            close('');
+          } else {
+            if ( keyName != 'Left' && keyName != 'Right' && keyName != 'Ctrl' && keyName != 'Alt' && keyName != 'Shift')
+              vimGlobalState.exCommandHistoryController.reset();
+          }
+        }
+        if (command.type == 'keyToEx') {
+          // Handle user defined Ex to Ex mappings
+          exCommandDispatcher.processCommand(cm, command.exArgs.input);
+        } else {
+          if (vim.visualMode) {
+            showPrompt(cm, { onClose: onPromptClose, prefix: ':', value: '\'<,\'>',
+                onKeyDown: onPromptKeyDown, selectValueOnOpen: false});
+          } else {
+            showPrompt(cm, { onClose: onPromptClose, prefix: ':',
+                onKeyDown: onPromptKeyDown});
+          }
+        }
+      },
+      evalInput: function(cm, vim) {
+        // If the motion command is set, execute both the operator and motion.
+        // Otherwise return.
+        var inputState = vim.inputState;
+        var motion = inputState.motion;
+        var motionArgs = inputState.motionArgs || {};
+        var operator = inputState.operator;
+        var operatorArgs = inputState.operatorArgs || {};
+        var registerName = inputState.registerName;
+        var sel = vim.sel;
+        // TODO: Make sure cm and vim selections are identical outside visual mode.
+        var origHead = copyCursor(vim.visualMode ? clipCursorToContent(cm, sel.head): cm.getCursor('head'));
+        var origAnchor = copyCursor(vim.visualMode ? clipCursorToContent(cm, sel.anchor) : cm.getCursor('anchor'));
+        var oldHead = copyCursor(origHead);
+        var oldAnchor = copyCursor(origAnchor);
+        var newHead, newAnchor;
+        var repeat;
+        if (operator) {
+          this.recordLastEdit(vim, inputState);
+        }
+        if (inputState.repeatOverride !== undefined) {
+          // If repeatOverride is specified, that takes precedence over the
+          // input state's repeat. Used by Ex mode and can be user defined.
+          repeat = inputState.repeatOverride;
+        } else {
+          repeat = inputState.getRepeat();
+        }
+        if (repeat > 0 && motionArgs.explicitRepeat) {
+          motionArgs.repeatIsExplicit = true;
+        } else if (motionArgs.noRepeat ||
+            (!motionArgs.explicitRepeat && repeat === 0)) {
+          repeat = 1;
+          motionArgs.repeatIsExplicit = false;
+        }
+        if (inputState.selectedCharacter) {
+          // If there is a character input, stick it in all of the arg arrays.
+          motionArgs.selectedCharacter = operatorArgs.selectedCharacter =
+              inputState.selectedCharacter;
+        }
+        motionArgs.repeat = repeat;
+        clearInputState(cm);
+        if (motion) {
+          var motionResult = motions[motion](cm, origHead, motionArgs, vim, inputState);
+          vim.lastMotion = motions[motion];
+          if (!motionResult) {
+            return;
+          }
+          if (motionArgs.toJumplist) {
+            var jumpList = vimGlobalState.jumpList;
+            // if the current motion is # or *, use cachedCursor
+            var cachedCursor = jumpList.cachedCursor;
+            if (cachedCursor) {
+              recordJumpPosition(cm, cachedCursor, motionResult);
+              delete jumpList.cachedCursor;
+            } else {
+              recordJumpPosition(cm, origHead, motionResult);
+            }
+          }
+          if (motionResult instanceof Array) {
+            newAnchor = motionResult[0];
+            newHead = motionResult[1];
+          } else {
+            newHead = motionResult;
+          }
+          // TODO: Handle null returns from motion commands better.
+          if (!newHead) {
+            newHead = copyCursor(origHead);
+          }
+          if (vim.visualMode) {
+            if (!(vim.visualBlock && newHead.ch === Infinity)) {
+              newHead = clipCursorToContent(cm, newHead);
+            }
+            if (newAnchor) {
+              newAnchor = clipCursorToContent(cm, newAnchor);
+            }
+            newAnchor = newAnchor || oldAnchor;
+            sel.anchor = newAnchor;
+            sel.head = newHead;
+            updateCmSelection(cm);
+            updateMark(cm, vim, '<',
+                cursorIsBefore(newAnchor, newHead) ? newAnchor
+                    : newHead);
+            updateMark(cm, vim, '>',
+                cursorIsBefore(newAnchor, newHead) ? newHead
+                    : newAnchor);
+          } else if (!operator) {
+            newHead = clipCursorToContent(cm, newHead);
+            cm.setCursor(newHead.line, newHead.ch);
+          }
+        }
+        if (operator) {
+          if (operatorArgs.lastSel) {
+            // Replaying a visual mode operation
+            newAnchor = oldAnchor;
+            var lastSel = operatorArgs.lastSel;
+            var lineOffset = Math.abs(lastSel.head.line - lastSel.anchor.line);
+            var chOffset = Math.abs(lastSel.head.ch - lastSel.anchor.ch);
+            if (lastSel.visualLine) {
+              // Linewise Visual mode: The same number of lines.
+              newHead = new Pos(oldAnchor.line + lineOffset, oldAnchor.ch);
+            } else if (lastSel.visualBlock) {
+              // Blockwise Visual mode: The same number of lines and columns.
+              newHead = new Pos(oldAnchor.line + lineOffset, oldAnchor.ch + chOffset);
+            } else if (lastSel.head.line == lastSel.anchor.line) {
+              // Normal Visual mode within one line: The same number of characters.
+              newHead = new Pos(oldAnchor.line, oldAnchor.ch + chOffset);
+            } else {
+              // Normal Visual mode with several lines: The same number of lines, in the
+              // last line the same number of characters as in the last line the last time.
+              newHead = new Pos(oldAnchor.line + lineOffset, oldAnchor.ch);
+            }
+            vim.visualMode = true;
+            vim.visualLine = lastSel.visualLine;
+            vim.visualBlock = lastSel.visualBlock;
+            sel = vim.sel = {
+              anchor: newAnchor,
+              head: newHead
+            };
+            updateCmSelection(cm);
+          } else if (vim.visualMode) {
+            operatorArgs.lastSel = {
+              anchor: copyCursor(sel.anchor),
+              head: copyCursor(sel.head),
+              visualBlock: vim.visualBlock,
+              visualLine: vim.visualLine
+            };
+          }
+          var curStart, curEnd, linewise, mode;
+          var cmSel;
+          if (vim.visualMode) {
+            // Init visual op
+            curStart = cursorMin(sel.head, sel.anchor);
+            curEnd = cursorMax(sel.head, sel.anchor);
+            linewise = vim.visualLine || operatorArgs.linewise;
+            mode = vim.visualBlock ? 'block' :
+                   linewise ? 'line' :
+                   'char';
+            cmSel = makeCmSelection(cm, {
+              anchor: curStart,
+              head: curEnd
+            }, mode);
+            if (linewise) {
+              var ranges = cmSel.ranges;
+              if (mode == 'block') {
+                // Linewise operators in visual block mode extend to end of line
+                for (var i = 0; i < ranges.length; i++) {
+                  ranges[i].head.ch = lineLength(cm, ranges[i].head.line);
+                }
+              } else if (mode == 'line') {
+                ranges[0].head = new Pos(ranges[0].head.line + 1, 0);
+              }
+            }
+          } else {
+            // Init motion op
+            curStart = copyCursor(newAnchor || oldAnchor);
+            curEnd = copyCursor(newHead || oldHead);
+            if (cursorIsBefore(curEnd, curStart)) {
+              var tmp = curStart;
+              curStart = curEnd;
+              curEnd = tmp;
+            }
+            linewise = motionArgs.linewise || operatorArgs.linewise;
+            if (linewise) {
+              // Expand selection to entire line.
+              expandSelectionToLine(cm, curStart, curEnd);
+            } else if (motionArgs.forward) {
+              // Clip to trailing newlines only if the motion goes forward.
+              clipToLine(cm, curStart, curEnd);
+            }
+            mode = 'char';
+            var exclusive = !motionArgs.inclusive || linewise;
+            cmSel = makeCmSelection(cm, {
+              anchor: curStart,
+              head: curEnd
+            }, mode, exclusive);
+          }
+          cm.setSelections(cmSel.ranges, cmSel.primary);
+          vim.lastMotion = null;
+          operatorArgs.repeat = repeat; // For indent in visual mode.
+          operatorArgs.registerName = registerName;
+          // Keep track of linewise as it affects how paste and change behave.
+          operatorArgs.linewise = linewise;
+          var operatorMoveTo = operators[operator](
+            cm, operatorArgs, cmSel.ranges, oldAnchor, newHead);
+          if (vim.visualMode) {
+            exitVisualMode(cm, operatorMoveTo != null);
+          }
+          if (operatorMoveTo) {
+            cm.setCursor(operatorMoveTo);
+          }
+        }
+      },
+      recordLastEdit: function(vim, inputState, actionCommand) {
+        var macroModeState = vimGlobalState.macroModeState;
+        if (macroModeState.isPlaying) { return; }
+        vim.lastEditInputState = inputState;
+        vim.lastEditActionCommand = actionCommand;
+        macroModeState.lastInsertModeChanges.changes = [];
+        macroModeState.lastInsertModeChanges.expectCursorActivityForChange = false;
+        macroModeState.lastInsertModeChanges.visualBlock = vim.visualBlock ? vim.sel.head.line - vim.sel.anchor.line : 0;
+      }
+    };
+
+    /**
+     * typedef {Object{line:number,ch:number}} Cursor An object containing the
+     *     position of the cursor.
+     */
+    // All of the functions below return Cursor objects.
+    var motions = {
+      moveToTopLine: function(cm, _head, motionArgs) {
+        var line = getUserVisibleLines(cm).top + motionArgs.repeat -1;
+        return new Pos(line, findFirstNonWhiteSpaceCharacter(cm.getLine(line)));
+      },
+      moveToMiddleLine: function(cm) {
+        var range = getUserVisibleLines(cm);
+        var line = Math.floor((range.top + range.bottom) * 0.5);
+        return new Pos(line, findFirstNonWhiteSpaceCharacter(cm.getLine(line)));
+      },
+      moveToBottomLine: function(cm, _head, motionArgs) {
+        var line = getUserVisibleLines(cm).bottom - motionArgs.repeat +1;
+        return new Pos(line, findFirstNonWhiteSpaceCharacter(cm.getLine(line)));
+      },
+      expandToLine: function(_cm, head, motionArgs) {
+        // Expands forward to end of line, and then to next line if repeat is
+        // >1. Does not handle backward motion!
+        var cur = head;
+        return new Pos(cur.line + motionArgs.repeat - 1, Infinity);
+      },
+      findNext: function(cm, _head, motionArgs) {
+        var state = getSearchState(cm);
+        var query = state.getQuery();
+        if (!query) {
+          return;
+        }
+        var prev = !motionArgs.forward;
+        // If search is initiated with ? instead of /, negate direction.
+        prev = (state.isReversed()) ? !prev : prev;
+        highlightSearchMatches(cm, query);
+        return findNext(cm, prev/** prev */, query, motionArgs.repeat);
+      },
+      /**
+       * Find and select the next occurrence of the search query. If the cursor is currently
+       * within a match, then find and select the current match. Otherwise, find the next occurrence in the
+       * appropriate direction.
+       *
+       * This differs from `findNext` in the following ways:
+       *
+       * 1. Instead of only returning the "from", this returns a "from", "to" range.
+       * 2. If the cursor is currently inside a search match, this selects the current match
+       *    instead of the next match.
+       * 3. If there is no associated operator, this will turn on visual mode.
+       */
+      findAndSelectNextInclusive: function(cm, _head, motionArgs, vim, prevInputState) {
+        var state = getSearchState(cm);
+        var query = state.getQuery();
+
+        if (!query) {
+          return;
+        }
+
+        var prev = !motionArgs.forward;
+        prev = (state.isReversed()) ? !prev : prev;
+
+        // next: [from, to] | null
+        var next = findNextFromAndToInclusive(cm, prev, query, motionArgs.repeat, vim);
+
+        // No matches.
+        if (!next) {
+          return;
+        }
+
+        // If there's an operator that will be executed, return the selection.
+        if (prevInputState.operator) {
+          return next;
+        }
+
+        // At this point, we know that there is no accompanying operator -- let's
+        // deal with visual mode in order to select an appropriate match.
+
+        var from = next[0];
+        // For whatever reason, when we use the "to" as returned by searchcursor.js directly,
+        // the resulting selection is extended by 1 char. Let's shrink it so that only the
+        // match is selected.
+        var to = new Pos(next[1].line, next[1].ch - 1);
+
+        if (vim.visualMode) {
+          // If we were in visualLine or visualBlock mode, get out of it.
+          if (vim.visualLine || vim.visualBlock) {
+            vim.visualLine = false;
+            vim.visualBlock = false;
+            CodeMirror.signal(cm, "vim-mode-change", {mode: "visual", subMode: ""});
+          }
+
+          // If we're currently in visual mode, we should extend the selection to include
+          // the search result.
+          var anchor = vim.sel.anchor;
+          if (anchor) {
+            if (state.isReversed()) {
+              if (motionArgs.forward) {
+                return [anchor, from];
+              }
+
+              return [anchor, to];
+            } else {
+              if (motionArgs.forward) {
+                return [anchor, to];
+              }
+
+              return [anchor, from];
+            }
+          }
+        } else {
+          // Let's turn visual mode on.
+          vim.visualMode = true;
+          vim.visualLine = false;
+          vim.visualBlock = false;
+          CodeMirror.signal(cm, "vim-mode-change", {mode: "visual", subMode: ""});
+        }
+
+        return prev ? [to, from] : [from, to];
+      },
+      goToMark: function(cm, _head, motionArgs, vim) {
+        var pos = getMarkPos(cm, vim, motionArgs.selectedCharacter);
+        if (pos) {
+          return motionArgs.linewise ? { line: pos.line, ch: findFirstNonWhiteSpaceCharacter(cm.getLine(pos.line)) } : pos;
+        }
+        return null;
+      },
+      moveToOtherHighlightedEnd: function(cm, _head, motionArgs, vim) {
+        if (vim.visualBlock && motionArgs.sameLine) {
+          var sel = vim.sel;
+          return [
+            clipCursorToContent(cm, new Pos(sel.anchor.line, sel.head.ch)),
+            clipCursorToContent(cm, new Pos(sel.head.line, sel.anchor.ch))
+          ];
+        } else {
+          return ([vim.sel.head, vim.sel.anchor]);
+        }
+      },
+      jumpToMark: function(cm, head, motionArgs, vim) {
+        var best = head;
+        for (var i = 0; i < motionArgs.repeat; i++) {
+          var cursor = best;
+          for (var key in vim.marks) {
+            if (!isLowerCase(key)) {
+              continue;
+            }
+            var mark = vim.marks[key].find();
+            var isWrongDirection = (motionArgs.forward) ?
+              cursorIsBefore(mark, cursor) : cursorIsBefore(cursor, mark);
+
+            if (isWrongDirection) {
+              continue;
+            }
+            if (motionArgs.linewise && (mark.line == cursor.line)) {
+              continue;
+            }
+
+            var equal = cursorEqual(cursor, best);
+            var between = (motionArgs.forward) ?
+              cursorIsBetween(cursor, mark, best) :
+              cursorIsBetween(best, mark, cursor);
+
+            if (equal || between) {
+              best = mark;
+            }
+          }
+        }
+
+        if (motionArgs.linewise) {
+          // Vim places the cursor on the first non-whitespace character of
+          // the line if there is one, else it places the cursor at the end
+          // of the line, regardless of whether a mark was found.
+          best = new Pos(best.line, findFirstNonWhiteSpaceCharacter(cm.getLine(best.line)));
+        }
+        return best;
+      },
+      moveByCharacters: function(_cm, head, motionArgs) {
+        var cur = head;
+        var repeat = motionArgs.repeat;
+        var ch = motionArgs.forward ? cur.ch + repeat : cur.ch - repeat;
+        return new Pos(cur.line, ch);
+      },
+      moveByLines: function(cm, head, motionArgs, vim) {
+        var cur = head;
+        var endCh = cur.ch;
+        // Depending what our last motion was, we may want to do different
+        // things. If our last motion was moving vertically, we want to
+        // preserve the HPos from our last horizontal move.  If our last motion
+        // was going to the end of a line, moving vertically we should go to
+        // the end of the line, etc.
+        switch (vim.lastMotion) {
+          case this.moveByLines:
+          case this.moveByDisplayLines:
+          case this.moveByScroll:
+          case this.moveToColumn:
+          case this.moveToEol:
+            endCh = vim.lastHPos;
+            break;
+          default:
+            vim.lastHPos = endCh;
+        }
+        var repeat = motionArgs.repeat+(motionArgs.repeatOffset||0);
+        var line = motionArgs.forward ? cur.line + repeat : cur.line - repeat;
+        var first = cm.firstLine();
+        var last = cm.lastLine();
+        var posV = cm.findPosV(cur, (motionArgs.forward ? repeat : -repeat), 'line', vim.lastHSPos);
+        var hasMarkedText = motionArgs.forward ? posV.line > line : posV.line < line;
+        if (hasMarkedText) {
+          line = posV.line;
+          endCh = posV.ch;
+        }
+        // Vim go to line begin or line end when cursor at first/last line and
+        // move to previous/next line is triggered.
+        if (line < first && cur.line == first){
+          return this.moveToStartOfLine(cm, head, motionArgs, vim);
+        } else if (line > last && cur.line == last){
+            return moveToEol(cm, head, motionArgs, vim, true);
+        }
+        if (motionArgs.toFirstChar){
+          endCh=findFirstNonWhiteSpaceCharacter(cm.getLine(line));
+          vim.lastHPos = endCh;
+        }
+        vim.lastHSPos = cm.charCoords(new Pos(line, endCh),'div').left;
+        return new Pos(line, endCh);
+      },
+      moveByDisplayLines: function(cm, head, motionArgs, vim) {
+        var cur = head;
+        switch (vim.lastMotion) {
+          case this.moveByDisplayLines:
+          case this.moveByScroll:
+          case this.moveByLines:
+          case this.moveToColumn:
+          case this.moveToEol:
+            break;
+          default:
+            vim.lastHSPos = cm.charCoords(cur,'div').left;
+        }
+        var repeat = motionArgs.repeat;
+        var res=cm.findPosV(cur,(motionArgs.forward ? repeat : -repeat),'line',vim.lastHSPos);
+        if (res.hitSide) {
+          if (motionArgs.forward) {
+            var lastCharCoords = cm.charCoords(res, 'div');
+            var goalCoords = { top: lastCharCoords.top + 8, left: vim.lastHSPos };
+            var res = cm.coordsChar(goalCoords, 'div');
+          } else {
+            var resCoords = cm.charCoords(new Pos(cm.firstLine(), 0), 'div');
+            resCoords.left = vim.lastHSPos;
+            res = cm.coordsChar(resCoords, 'div');
+          }
+        }
+        vim.lastHPos = res.ch;
+        return res;
+      },
+      moveByPage: function(cm, head, motionArgs) {
+        // CodeMirror only exposes functions that move the cursor page down, so
+        // doing this bad hack to move the cursor and move it back. evalInput
+        // will move the cursor to where it should be in the end.
+        var curStart = head;
+        var repeat = motionArgs.repeat;
+        return cm.findPosV(curStart, (motionArgs.forward ? repeat : -repeat), 'page');
+      },
+      moveByParagraph: function(cm, head, motionArgs) {
+        var dir = motionArgs.forward ? 1 : -1;
+        return findParagraph(cm, head, motionArgs.repeat, dir);
+      },
+      moveBySentence: function(cm, head, motionArgs) {
+        var dir = motionArgs.forward ? 1 : -1;
+        return findSentence(cm, head, motionArgs.repeat, dir);
+      },
+      moveByScroll: function(cm, head, motionArgs, vim) {
+        var scrollbox = cm.getScrollInfo();
+        var curEnd = null;
+        var repeat = motionArgs.repeat;
+        if (!repeat) {
+          repeat = scrollbox.clientHeight / (2 * cm.defaultTextHeight());
+        }
+        var orig = cm.charCoords(head, 'local');
+        motionArgs.repeat = repeat;
+        curEnd = motions.moveByDisplayLines(cm, head, motionArgs, vim);
+        if (!curEnd) {
+          return null;
+        }
+        var dest = cm.charCoords(curEnd, 'local');
+        cm.scrollTo(null, scrollbox.top + dest.top - orig.top);
+        return curEnd;
+      },
+      moveByWords: function(cm, head, motionArgs) {
+        return moveToWord(cm, head, motionArgs.repeat, !!motionArgs.forward,
+            !!motionArgs.wordEnd, !!motionArgs.bigWord);
+      },
+      moveTillCharacter: function(cm, _head, motionArgs) {
+        var repeat = motionArgs.repeat;
+        var curEnd = moveToCharacter(cm, repeat, motionArgs.forward,
+            motionArgs.selectedCharacter);
+        var increment = motionArgs.forward ? -1 : 1;
+        recordLastCharacterSearch(increment, motionArgs);
+        if (!curEnd) return null;
+        curEnd.ch += increment;
+        return curEnd;
+      },
+      moveToCharacter: function(cm, head, motionArgs) {
+        var repeat = motionArgs.repeat;
+        recordLastCharacterSearch(0, motionArgs);
+        return moveToCharacter(cm, repeat, motionArgs.forward,
+            motionArgs.selectedCharacter) || head;
+      },
+      moveToSymbol: function(cm, head, motionArgs) {
+        var repeat = motionArgs.repeat;
+        return findSymbol(cm, repeat, motionArgs.forward,
+            motionArgs.selectedCharacter) || head;
+      },
+      moveToColumn: function(cm, head, motionArgs, vim) {
+        var repeat = motionArgs.repeat;
+        // repeat is equivalent to which column we want to move to!
+        vim.lastHPos = repeat - 1;
+        vim.lastHSPos = cm.charCoords(head,'div').left;
+        return moveToColumn(cm, repeat);
+      },
+      moveToEol: function(cm, head, motionArgs, vim) {
+        return moveToEol(cm, head, motionArgs, vim, false);
+      },
+      moveToFirstNonWhiteSpaceCharacter: function(cm, head) {
+        // Go to the start of the line where the text begins, or the end for
+        // whitespace-only lines
+        var cursor = head;
+        return new Pos(cursor.line,
+                   findFirstNonWhiteSpaceCharacter(cm.getLine(cursor.line)));
+      },
+      moveToMatchedSymbol: function(cm, head) {
+        var cursor = head;
+        var line = cursor.line;
+        var ch = cursor.ch;
+        var lineText = cm.getLine(line);
+        var symbol;
+        for (; ch < lineText.length; ch++) {
+          symbol = lineText.charAt(ch);
+          if (symbol && isMatchableSymbol(symbol)) {
+            var style = cm.getTokenTypeAt(new Pos(line, ch + 1));
+            if (style !== "string" && style !== "comment") {
+              break;
+            }
+          }
+        }
+        if (ch < lineText.length) {
+          // Only include angle brackets in analysis if they are being matched.
+          var re = (ch === '<' || ch === '>') ? /[(){}[\]<>]/ : /[(){}[\]]/;
+          var matched = cm.findMatchingBracket(new Pos(line, ch), {bracketRegex: re});
+          return matched.to;
+        } else {
+          return cursor;
+        }
+      },
+      moveToStartOfLine: function(_cm, head) {
+        return new Pos(head.line, 0);
+      },
+      moveToLineOrEdgeOfDocument: function(cm, _head, motionArgs) {
+        var lineNum = motionArgs.forward ? cm.lastLine() : cm.firstLine();
+        if (motionArgs.repeatIsExplicit) {
+          lineNum = motionArgs.repeat - cm.getOption('firstLineNumber');
+        }
+        return new Pos(lineNum,
+                   findFirstNonWhiteSpaceCharacter(cm.getLine(lineNum)));
+      },
+      moveToStartOfDisplayLine: function(cm) {
+        cm.execCommand("goLineLeft");
+        return cm.getCursor();
+      },
+      moveToEndOfDisplayLine: function(cm) {
+        cm.execCommand("goLineRight");
+        var head = cm.getCursor();
+        if (head.sticky == "before") head.ch--;
+        return head;
+      },
+      textObjectManipulation: function(cm, head, motionArgs, vim) {
+        // TODO: lots of possible exceptions that can be thrown here. Try da(
+        //     outside of a () block.
+        var mirroredPairs = {'(': ')', ')': '(',
+                             '{': '}', '}': '{',
+                             '[': ']', ']': '[',
+                             '<': '>', '>': '<'};
+        var selfPaired = {'\'': true, '"': true, '`': true};
+
+        var character = motionArgs.selectedCharacter;
+        // 'b' refers to  '()' block.
+        // 'B' refers to  '{}' block.
+        if (character == 'b') {
+          character = '(';
+        } else if (character == 'B') {
+          character = '{';
+        }
+
+        // Inclusive is the difference between a and i
+        // TODO: Instead of using the additional text object map to perform text
+        //     object operations, merge the map into the defaultKeyMap and use
+        //     motionArgs to define behavior. Define separate entries for 'aw',
+        //     'iw', 'a[', 'i[', etc.
+        var inclusive = !motionArgs.textObjectInner;
+
+        var tmp;
+        if (mirroredPairs[character]) {
+          tmp = selectCompanionObject(cm, head, character, inclusive);
+        } else if (selfPaired[character]) {
+          tmp = findBeginningAndEnd(cm, head, character, inclusive);
+        } else if (character === 'W') {
+          tmp = expandWordUnderCursor(cm, inclusive, true /** forward */,
+                                                     true /** bigWord */);
+        } else if (character === 'w') {
+          tmp = expandWordUnderCursor(cm, inclusive, true /** forward */,
+                                                     false /** bigWord */);
+        } else if (character === 'p') {
+          tmp = findParagraph(cm, head, motionArgs.repeat, 0, inclusive);
+          motionArgs.linewise = true;
+          if (vim.visualMode) {
+            if (!vim.visualLine) { vim.visualLine = true; }
+          } else {
+            var operatorArgs = vim.inputState.operatorArgs;
+            if (operatorArgs) { operatorArgs.linewise = true; }
+            tmp.end.line--;
+          }
+        } else if (character === 't') {
+          tmp = expandTagUnderCursor(cm, head, inclusive);
+        } else if (character === 's') {
+          // account for cursor on end of sentence symbol
+          var content = cm.getLine(head.line);
+          if (head.ch > 0 && isEndOfSentenceSymbol(content[head.ch])) {
+            head.ch -= 1;
+          }
+          var end = getSentence(cm, head, motionArgs.repeat, 1, inclusive);
+          var start = getSentence(cm, head, motionArgs.repeat, -1, inclusive);
+          // closer vim behaviour, 'a' only takes the space after the sentence if there is one before and after
+          if (isWhiteSpaceString(cm.getLine(start.line)[start.ch])
+              && isWhiteSpaceString(cm.getLine(end.line)[end.ch -1])) {
+            start = {line: start.line, ch: start.ch + 1};
+          }
+          tmp = {start: start, end: end};
+        } else {
+          // No text object defined for this, don't move.
+          return null;
+        }
+
+        if (!cm.state.vim.visualMode) {
+          return [tmp.start, tmp.end];
+        } else {
+          return expandSelection(cm, tmp.start, tmp.end);
+        }
+      },
+
+      repeatLastCharacterSearch: function(cm, head, motionArgs) {
+        var lastSearch = vimGlobalState.lastCharacterSearch;
+        var repeat = motionArgs.repeat;
+        var forward = motionArgs.forward === lastSearch.forward;
+        var increment = (lastSearch.increment ? 1 : 0) * (forward ? -1 : 1);
+        cm.moveH(-increment, 'char');
+        motionArgs.inclusive = forward ? true : false;
+        var curEnd = moveToCharacter(cm, repeat, forward, lastSearch.selectedCharacter);
+        if (!curEnd) {
+          cm.moveH(increment, 'char');
+          return head;
+        }
+        curEnd.ch += increment;
+        return curEnd;
+      }
+    };
+
+    function defineMotion(name, fn) {
+      motions[name] = fn;
+    }
+
+    function fillArray(val, times) {
+      var arr = [];
+      for (var i = 0; i < times; i++) {
+        arr.push(val);
+      }
+      return arr;
+    }
+    /**
+     * An operator acts on a text selection. It receives the list of selections
+     * as input. The corresponding CodeMirror selection is guaranteed to
+    * match the input selection.
+     */
+    var operators = {
+      change: function(cm, args, ranges) {
+        var finalHead, text;
+        var vim = cm.state.vim;
+        var anchor = ranges[0].anchor,
+            head = ranges[0].head;
+        if (!vim.visualMode) {
+          text = cm.getRange(anchor, head);
+          var lastState = vim.lastEditInputState || {};
+          if (lastState.motion == "moveByWords" && !isWhiteSpaceString(text)) {
+            // Exclude trailing whitespace if the range is not all whitespace.
+            var match = (/\s+$/).exec(text);
+            if (match && lastState.motionArgs && lastState.motionArgs.forward) {
+              head = offsetCursor(head, 0, - match[0].length);
+              text = text.slice(0, - match[0].length);
+            }
+          }
+          var prevLineEnd = new Pos(anchor.line - 1, Number.MAX_VALUE);
+          var wasLastLine = cm.firstLine() == cm.lastLine();
+          if (head.line > cm.lastLine() && args.linewise && !wasLastLine) {
+            cm.replaceRange('', prevLineEnd, head);
+          } else {
+            cm.replaceRange('', anchor, head);
+          }
+          if (args.linewise) {
+            // Push the next line back down, if there is a next line.
+            if (!wasLastLine) {
+              cm.setCursor(prevLineEnd);
+              CodeMirror.commands.newlineAndIndent(cm);
+            }
+            // make sure cursor ends up at the end of the line.
+            anchor.ch = Number.MAX_VALUE;
+          }
+          finalHead = anchor;
+        } else if (args.fullLine) {
+            head.ch = Number.MAX_VALUE;
+            head.line--;
+            cm.setSelection(anchor, head);
+            text = cm.getSelection();
+            cm.replaceSelection("");
+            finalHead = anchor;
+        } else {
+          text = cm.getSelection();
+          var replacement = fillArray('', ranges.length);
+          cm.replaceSelections(replacement);
+          finalHead = cursorMin(ranges[0].head, ranges[0].anchor);
+        }
+        vimGlobalState.registerController.pushText(
+            args.registerName, 'change', text,
+            args.linewise, ranges.length > 1);
+        actions.enterInsertMode(cm, {head: finalHead}, cm.state.vim);
+      },
+      // delete is a javascript keyword.
+      'delete': function(cm, args, ranges) {
+        var finalHead, text;
+        var vim = cm.state.vim;
+        if (!vim.visualBlock) {
+          var anchor = ranges[0].anchor,
+              head = ranges[0].head;
+          if (args.linewise &&
+              head.line != cm.firstLine() &&
+              anchor.line == cm.lastLine() &&
+              anchor.line == head.line - 1) {
+            // Special case for dd on last line (and first line).
+            if (anchor.line == cm.firstLine()) {
+              anchor.ch = 0;
+            } else {
+              anchor = new Pos(anchor.line - 1, lineLength(cm, anchor.line - 1));
+            }
+          }
+          text = cm.getRange(anchor, head);
+          cm.replaceRange('', anchor, head);
+          finalHead = anchor;
+          if (args.linewise) {
+            finalHead = motions.moveToFirstNonWhiteSpaceCharacter(cm, anchor);
+          }
+        } else {
+          text = cm.getSelection();
+          var replacement = fillArray('', ranges.length);
+          cm.replaceSelections(replacement);
+          finalHead = cursorMin(ranges[0].head, ranges[0].anchor);
+        }
+        vimGlobalState.registerController.pushText(
+            args.registerName, 'delete', text,
+            args.linewise, vim.visualBlock);
+        return clipCursorToContent(cm, finalHead);
+      },
+      indent: function(cm, args, ranges) {
+        var vim = cm.state.vim;
+        if (cm.indentMore) {
+          var repeat = (vim.visualMode) ? args.repeat : 1;
+          for (var j = 0; j < repeat; j++) {
+            if (args.indentRight) cm.indentMore();
+            else cm.indentLess();
+          }
+        } else {
+          var startLine = ranges[0].anchor.line;
+          var endLine = vim.visualBlock ?
+            ranges[ranges.length - 1].anchor.line :
+            ranges[0].head.line;
+          // In visual mode, n> shifts the selection right n times, instead of
+          // shifting n lines right once.
+          var repeat = (vim.visualMode) ? args.repeat : 1;
+          if (args.linewise) {
+            // The only way to delete a newline is to delete until the start of
+            // the next line, so in linewise mode evalInput will include the next
+            // line. We don't want this in indent, so we go back a line.
+            endLine--;
+          }
+          for (var i = startLine; i <= endLine; i++) {
+            for (var j = 0; j < repeat; j++) {
+              cm.indentLine(i, args.indentRight);
+            }
+          }
+        }
+        return motions.moveToFirstNonWhiteSpaceCharacter(cm, ranges[0].anchor);
+      },
+      indentAuto: function(cm, _args, ranges) {
+        cm.execCommand("indentAuto");
+        return motions.moveToFirstNonWhiteSpaceCharacter(cm, ranges[0].anchor);
+      },
+      changeCase: function(cm, args, ranges, oldAnchor, newHead) {
+        var selections = cm.getSelections();
+        var swapped = [];
+        var toLower = args.toLower;
+        for (var j = 0; j < selections.length; j++) {
+          var toSwap = selections[j];
+          var text = '';
+          if (toLower === true) {
+            text = toSwap.toLowerCase();
+          } else if (toLower === false) {
+            text = toSwap.toUpperCase();
+          } else {
+            for (var i = 0; i < toSwap.length; i++) {
+              var character = toSwap.charAt(i);
+              text += isUpperCase(character) ? character.toLowerCase() :
+                  character.toUpperCase();
+            }
+          }
+          swapped.push(text);
+        }
+        cm.replaceSelections(swapped);
+        if (args.shouldMoveCursor){
+          return newHead;
+        } else if (!cm.state.vim.visualMode && args.linewise && ranges[0].anchor.line + 1 == ranges[0].head.line) {
+          return motions.moveToFirstNonWhiteSpaceCharacter(cm, oldAnchor);
+        } else if (args.linewise){
+          return oldAnchor;
+        } else {
+          return cursorMin(ranges[0].anchor, ranges[0].head);
+        }
+      },
+      yank: function(cm, args, ranges, oldAnchor) {
+        var vim = cm.state.vim;
+        var text = cm.getSelection();
+        var endPos = vim.visualMode
+          ? cursorMin(vim.sel.anchor, vim.sel.head, ranges[0].head, ranges[0].anchor)
+          : oldAnchor;
+        vimGlobalState.registerController.pushText(
+            args.registerName, 'yank',
+            text, args.linewise, vim.visualBlock);
+        return endPos;
+      }
+    };
+
+    function defineOperator(name, fn) {
+      operators[name] = fn;
+    }
+
+    var actions = {
+      jumpListWalk: function(cm, actionArgs, vim) {
+        if (vim.visualMode) {
+          return;
+        }
+        var repeat = actionArgs.repeat;
+        var forward = actionArgs.forward;
+        var jumpList = vimGlobalState.jumpList;
+
+        var mark = jumpList.move(cm, forward ? repeat : -repeat);
+        var markPos = mark ? mark.find() : undefined;
+        markPos = markPos ? markPos : cm.getCursor();
+        cm.setCursor(markPos);
+      },
+      scroll: function(cm, actionArgs, vim) {
+        if (vim.visualMode) {
+          return;
+        }
+        var repeat = actionArgs.repeat || 1;
+        var lineHeight = cm.defaultTextHeight();
+        var top = cm.getScrollInfo().top;
+        var delta = lineHeight * repeat;
+        var newPos = actionArgs.forward ? top + delta : top - delta;
+        var cursor = copyCursor(cm.getCursor());
+        var cursorCoords = cm.charCoords(cursor, 'local');
+        if (actionArgs.forward) {
+          if (newPos > cursorCoords.top) {
+             cursor.line += (newPos - cursorCoords.top) / lineHeight;
+             cursor.line = Math.ceil(cursor.line);
+             cm.setCursor(cursor);
+             cursorCoords = cm.charCoords(cursor, 'local');
+             cm.scrollTo(null, cursorCoords.top);
+          } else {
+             // Cursor stays within bounds.  Just reposition the scroll window.
+             cm.scrollTo(null, newPos);
+          }
+        } else {
+          var newBottom = newPos + cm.getScrollInfo().clientHeight;
+          if (newBottom < cursorCoords.bottom) {
+             cursor.line -= (cursorCoords.bottom - newBottom) / lineHeight;
+             cursor.line = Math.floor(cursor.line);
+             cm.setCursor(cursor);
+             cursorCoords = cm.charCoords(cursor, 'local');
+             cm.scrollTo(
+                 null, cursorCoords.bottom - cm.getScrollInfo().clientHeight);
+          } else {
+             // Cursor stays within bounds.  Just reposition the scroll window.
+             cm.scrollTo(null, newPos);
+          }
+        }
+      },
+      scrollToCursor: function(cm, actionArgs) {
+        var lineNum = cm.getCursor().line;
+        var charCoords = cm.charCoords(new Pos(lineNum, 0), 'local');
+        var height = cm.getScrollInfo().clientHeight;
+        var y = charCoords.top;
+        switch (actionArgs.position) {
+          case 'center': y = charCoords.bottom - height / 2;
+            break;
+          case 'bottom':
+            var lineLastCharPos = new Pos(lineNum, cm.getLine(lineNum).length - 1);
+            var lineLastCharCoords = cm.charCoords(lineLastCharPos, 'local');
+            var lineHeight = lineLastCharCoords.bottom - y;
+            y = y - height + lineHeight;
+            break;
+        }
+        cm.scrollTo(null, y);
+      },
+      replayMacro: function(cm, actionArgs, vim) {
+        var registerName = actionArgs.selectedCharacter;
+        var repeat = actionArgs.repeat;
+        var macroModeState = vimGlobalState.macroModeState;
+        if (registerName == '@') {
+          registerName = macroModeState.latestRegister;
+        } else {
+          macroModeState.latestRegister = registerName;
+        }
+        while(repeat--){
+          executeMacroRegister(cm, vim, macroModeState, registerName);
+        }
+      },
+      enterMacroRecordMode: function(cm, actionArgs) {
+        var macroModeState = vimGlobalState.macroModeState;
+        var registerName = actionArgs.selectedCharacter;
+        if (vimGlobalState.registerController.isValidRegister(registerName)) {
+          macroModeState.enterMacroRecordMode(cm, registerName);
+        }
+      },
+      toggleOverwrite: function(cm) {
+        if (!cm.state.overwrite) {
+          cm.toggleOverwrite(true);
+          cm.setOption('keyMap', 'vim-replace');
+          CodeMirror.signal(cm, "vim-mode-change", {mode: "replace"});
+        } else {
+          cm.toggleOverwrite(false);
+          cm.setOption('keyMap', 'vim-insert');
+          CodeMirror.signal(cm, "vim-mode-change", {mode: "insert"});
+        }
+      },
+      enterInsertMode: function(cm, actionArgs, vim) {
+        if (cm.getOption('readOnly')) { return; }
+        vim.insertMode = true;
+        vim.insertModeRepeat = actionArgs && actionArgs.repeat || 1;
+        var insertAt = (actionArgs) ? actionArgs.insertAt : null;
+        var sel = vim.sel;
+        var head = actionArgs.head || cm.getCursor('head');
+        var height = cm.listSelections().length;
+        if (insertAt == 'eol') {
+          head = new Pos(head.line, lineLength(cm, head.line));
+        } else if (insertAt == 'bol') {
+          head = new Pos(head.line, 0);
+        } else if (insertAt == 'charAfter') {
+          head = offsetCursor(head, 0, 1);
+        } else if (insertAt == 'firstNonBlank') {
+          head = motions.moveToFirstNonWhiteSpaceCharacter(cm, head);
+        } else if (insertAt == 'startOfSelectedArea') {
+          if (!vim.visualMode)
+              return;
+          if (!vim.visualBlock) {
+            if (sel.head.line < sel.anchor.line) {
+              head = sel.head;
+            } else {
+              head = new Pos(sel.anchor.line, 0);
+            }
+          } else {
+            head = new Pos(
+                Math.min(sel.head.line, sel.anchor.line),
+                Math.min(sel.head.ch, sel.anchor.ch));
+            height = Math.abs(sel.head.line - sel.anchor.line) + 1;
+          }
+        } else if (insertAt == 'endOfSelectedArea') {
+            if (!vim.visualMode)
+              return;
+          if (!vim.visualBlock) {
+            if (sel.head.line >= sel.anchor.line) {
+              head = offsetCursor(sel.head, 0, 1);
+            } else {
+              head = new Pos(sel.anchor.line, 0);
+            }
+          } else {
+            head = new Pos(
+                Math.min(sel.head.line, sel.anchor.line),
+                Math.max(sel.head.ch, sel.anchor.ch) + 1);
+            height = Math.abs(sel.head.line - sel.anchor.line) + 1;
+          }
+        } else if (insertAt == 'inplace') {
+          if (vim.visualMode){
+            return;
+          }
+        } else if (insertAt == 'lastEdit') {
+          head = getLastEditPos(cm) || head;
+        }
+        cm.setOption('disableInput', false);
+        if (actionArgs && actionArgs.replace) {
+          // Handle Replace-mode as a special case of insert mode.
+          cm.toggleOverwrite(true);
+          cm.setOption('keyMap', 'vim-replace');
+          CodeMirror.signal(cm, "vim-mode-change", {mode: "replace"});
+        } else {
+          cm.toggleOverwrite(false);
+          cm.setOption('keyMap', 'vim-insert');
+          CodeMirror.signal(cm, "vim-mode-change", {mode: "insert"});
+        }
+        if (!vimGlobalState.macroModeState.isPlaying) {
+          // Only record if not replaying.
+          cm.on('change', onChange);
+          CodeMirror.on(cm.getInputField(), 'keydown', onKeyEventTargetKeyDown);
+        }
+        if (vim.visualMode) {
+          exitVisualMode(cm);
+        }
+        selectForInsert(cm, head, height);
+      },
+      toggleVisualMode: function(cm, actionArgs, vim) {
+        var repeat = actionArgs.repeat;
+        var anchor = cm.getCursor();
+        var head;
+        // TODO: The repeat should actually select number of characters/lines
+        //     equal to the repeat times the size of the previous visual
+        //     operation.
+        if (!vim.visualMode) {
+          // Entering visual mode
+          vim.visualMode = true;
+          vim.visualLine = !!actionArgs.linewise;
+          vim.visualBlock = !!actionArgs.blockwise;
+          head = clipCursorToContent(
+              cm, new Pos(anchor.line, anchor.ch + repeat - 1));
+          vim.sel = {
+            anchor: anchor,
+            head: head
+          };
+          CodeMirror.signal(cm, "vim-mode-change", {mode: "visual", subMode: vim.visualLine ? "linewise" : vim.visualBlock ? "blockwise" : ""});
+          updateCmSelection(cm);
+          updateMark(cm, vim, '<', cursorMin(anchor, head));
+          updateMark(cm, vim, '>', cursorMax(anchor, head));
+        } else if (vim.visualLine ^ actionArgs.linewise ||
+            vim.visualBlock ^ actionArgs.blockwise) {
+          // Toggling between modes
+          vim.visualLine = !!actionArgs.linewise;
+          vim.visualBlock = !!actionArgs.blockwise;
+          CodeMirror.signal(cm, "vim-mode-change", {mode: "visual", subMode: vim.visualLine ? "linewise" : vim.visualBlock ? "blockwise" : ""});
+          updateCmSelection(cm);
+        } else {
+          exitVisualMode(cm);
+        }
+      },
+      reselectLastSelection: function(cm, _actionArgs, vim) {
+        var lastSelection = vim.lastSelection;
+        if (vim.visualMode) {
+          updateLastSelection(cm, vim);
+        }
+        if (lastSelection) {
+          var anchor = lastSelection.anchorMark.find();
+          var head = lastSelection.headMark.find();
+          if (!anchor || !head) {
+            // If the marks have been destroyed due to edits, do nothing.
+            return;
+          }
+          vim.sel = {
+            anchor: anchor,
+            head: head
+          };
+          vim.visualMode = true;
+          vim.visualLine = lastSelection.visualLine;
+          vim.visualBlock = lastSelection.visualBlock;
+          updateCmSelection(cm);
+          updateMark(cm, vim, '<', cursorMin(anchor, head));
+          updateMark(cm, vim, '>', cursorMax(anchor, head));
+          CodeMirror.signal(cm, 'vim-mode-change', {
+            mode: 'visual',
+            subMode: vim.visualLine ? 'linewise' :
+                     vim.visualBlock ? 'blockwise' : ''});
+        }
+      },
+      joinLines: function(cm, actionArgs, vim) {
+        var curStart, curEnd;
+        if (vim.visualMode) {
+          curStart = cm.getCursor('anchor');
+          curEnd = cm.getCursor('head');
+          if (cursorIsBefore(curEnd, curStart)) {
+            var tmp = curEnd;
+            curEnd = curStart;
+            curStart = tmp;
+          }
+          curEnd.ch = lineLength(cm, curEnd.line) - 1;
+        } else {
+          // Repeat is the number of lines to join. Minimum 2 lines.
+          var repeat = Math.max(actionArgs.repeat, 2);
+          curStart = cm.getCursor();
+          curEnd = clipCursorToContent(cm, new Pos(curStart.line + repeat - 1,
+                                               Infinity));
+        }
+        var finalCh = 0;
+        for (var i = curStart.line; i < curEnd.line; i++) {
+          finalCh = lineLength(cm, curStart.line);
+          var tmp = new Pos(curStart.line + 1,
+                        lineLength(cm, curStart.line + 1));
+          var text = cm.getRange(curStart, tmp);
+          text = actionArgs.keepSpaces
+            ? text.replace(/\n\r?/g, '')
+            : text.replace(/\n\s*/g, ' ');
+          cm.replaceRange(text, curStart, tmp);
+        }
+        var curFinalPos = new Pos(curStart.line, finalCh);
+        if (vim.visualMode) {
+          exitVisualMode(cm, false);
+        }
+        cm.setCursor(curFinalPos);
+      },
+      newLineAndEnterInsertMode: function(cm, actionArgs, vim) {
+        vim.insertMode = true;
+        var insertAt = copyCursor(cm.getCursor());
+        if (insertAt.line === cm.firstLine() && !actionArgs.after) {
+          // Special case for inserting newline before start of document.
+          cm.replaceRange('\n', new Pos(cm.firstLine(), 0));
+          cm.setCursor(cm.firstLine(), 0);
+        } else {
+          insertAt.line = (actionArgs.after) ? insertAt.line :
+              insertAt.line - 1;
+          insertAt.ch = lineLength(cm, insertAt.line);
+          cm.setCursor(insertAt);
+          var newlineFn = CodeMirror.commands.newlineAndIndentContinueComment ||
+              CodeMirror.commands.newlineAndIndent;
+          newlineFn(cm);
+        }
+        this.enterInsertMode(cm, { repeat: actionArgs.repeat }, vim);
+      },
+      paste: function(cm, actionArgs, vim) {
+        var cur = copyCursor(cm.getCursor());
+        var register = vimGlobalState.registerController.getRegister(
+            actionArgs.registerName);
+        var text = register.toString();
+        if (!text) {
+          return;
+        }
+        if (actionArgs.matchIndent) {
+          var tabSize = cm.getOption("tabSize");
+          // length that considers tabs and tabSize
+          var whitespaceLength = function(str) {
+            var tabs = (str.split("\t").length - 1);
+            var spaces = (str.split(" ").length - 1);
+            return tabs * tabSize + spaces * 1;
+          };
+          var currentLine = cm.getLine(cm.getCursor().line);
+          var indent = whitespaceLength(currentLine.match(/^\s*/)[0]);
+          // chomp last newline b/c don't want it to match /^\s*/gm
+          var chompedText = text.replace(/\n$/, '');
+          var wasChomped = text !== chompedText;
+          var firstIndent = whitespaceLength(text.match(/^\s*/)[0]);
+          var text = chompedText.replace(/^\s*/gm, function(wspace) {
+            var newIndent = indent + (whitespaceLength(wspace) - firstIndent);
+            if (newIndent < 0) {
+              return "";
+            }
+            else if (cm.getOption("indentWithTabs")) {
+              var quotient = Math.floor(newIndent / tabSize);
+              return Array(quotient + 1).join('\t');
+            }
+            else {
+              return Array(newIndent + 1).join(' ');
+            }
+          });
+          text += wasChomped ? "\n" : "";
+        }
+        if (actionArgs.repeat > 1) {
+          var text = Array(actionArgs.repeat + 1).join(text);
+        }
+        var linewise = register.linewise;
+        var blockwise = register.blockwise;
+        if (blockwise) {
+          text = text.split('\n');
+          if (linewise) {
+              text.pop();
+          }
+          for (var i = 0; i < text.length; i++) {
+            text[i] = (text[i] == '') ? ' ' : text[i];
+          }
+          cur.ch += actionArgs.after ? 1 : 0;
+          cur.ch = Math.min(lineLength(cm, cur.line), cur.ch);
+        } else if (linewise) {
+          if(vim.visualMode) {
+            text = vim.visualLine ? text.slice(0, -1) : '\n' + text.slice(0, text.length - 1) + '\n';
+          } else if (actionArgs.after) {
+            // Move the newline at the end to the start instead, and paste just
+            // before the newline character of the line we are on right now.
+            text = '\n' + text.slice(0, text.length - 1);
+            cur.ch = lineLength(cm, cur.line);
+          } else {
+            cur.ch = 0;
+          }
+        } else {
+          cur.ch += actionArgs.after ? 1 : 0;
+        }
+        var curPosFinal;
+        var idx;
+        if (vim.visualMode) {
+          //  save the pasted text for reselection if the need arises
+          vim.lastPastedText = text;
+          var lastSelectionCurEnd;
+          var selectedArea = getSelectedAreaRange(cm, vim);
+          var selectionStart = selectedArea[0];
+          var selectionEnd = selectedArea[1];
+          var selectedText = cm.getSelection();
+          var selections = cm.listSelections();
+          var emptyStrings = new Array(selections.length).join('1').split('1');
+          // save the curEnd marker before it get cleared due to cm.replaceRange.
+          if (vim.lastSelection) {
+            lastSelectionCurEnd = vim.lastSelection.headMark.find();
+          }
+          // push the previously selected text to unnamed register
+          vimGlobalState.registerController.unnamedRegister.setText(selectedText);
+          if (blockwise) {
+            // first delete the selected text
+            cm.replaceSelections(emptyStrings);
+            // Set new selections as per the block length of the yanked text
+            selectionEnd = new Pos(selectionStart.line + text.length-1, selectionStart.ch);
+            cm.setCursor(selectionStart);
+            selectBlock(cm, selectionEnd);
+            cm.replaceSelections(text);
+            curPosFinal = selectionStart;
+          } else if (vim.visualBlock) {
+            cm.replaceSelections(emptyStrings);
+            cm.setCursor(selectionStart);
+            cm.replaceRange(text, selectionStart, selectionStart);
+            curPosFinal = selectionStart;
+          } else {
+            cm.replaceRange(text, selectionStart, selectionEnd);
+            curPosFinal = cm.posFromIndex(cm.indexFromPos(selectionStart) + text.length - 1);
+          }
+          // restore the the curEnd marker
+          if(lastSelectionCurEnd) {
+            vim.lastSelection.headMark = cm.setBookmark(lastSelectionCurEnd);
+          }
+          if (linewise) {
+            curPosFinal.ch=0;
+          }
+        } else {
+          if (blockwise) {
+            cm.setCursor(cur);
+            for (var i = 0; i < text.length; i++) {
+              var line = cur.line+i;
+              if (line > cm.lastLine()) {
+                cm.replaceRange('\n',  new Pos(line, 0));
+              }
+              var lastCh = lineLength(cm, line);
+              if (lastCh < cur.ch) {
+                extendLineToColumn(cm, line, cur.ch);
+              }
+            }
+            cm.setCursor(cur);
+            selectBlock(cm, new Pos(cur.line + text.length-1, cur.ch));
+            cm.replaceSelections(text);
+            curPosFinal = cur;
+          } else {
+            cm.replaceRange(text, cur);
+            // Now fine tune the cursor to where we want it.
+            if (linewise && actionArgs.after) {
+              curPosFinal = new Pos(
+              cur.line + 1,
+              findFirstNonWhiteSpaceCharacter(cm.getLine(cur.line + 1)));
+            } else if (linewise && !actionArgs.after) {
+              curPosFinal = new Pos(
+                cur.line,
+                findFirstNonWhiteSpaceCharacter(cm.getLine(cur.line)));
+            } else if (!linewise && actionArgs.after) {
+              idx = cm.indexFromPos(cur);
+              curPosFinal = cm.posFromIndex(idx + text.length - 1);
+            } else {
+              idx = cm.indexFromPos(cur);
+              curPosFinal = cm.posFromIndex(idx + text.length);
+            }
+          }
+        }
+        if (vim.visualMode) {
+          exitVisualMode(cm, false);
+        }
+        cm.setCursor(curPosFinal);
+      },
+      undo: function(cm, actionArgs) {
+        cm.operation(function() {
+          repeatFn(cm, CodeMirror.commands.undo, actionArgs.repeat)();
+          cm.setCursor(cm.getCursor('anchor'));
+        });
+      },
+      redo: function(cm, actionArgs) {
+        repeatFn(cm, CodeMirror.commands.redo, actionArgs.repeat)();
+      },
+      setRegister: function(_cm, actionArgs, vim) {
+        vim.inputState.registerName = actionArgs.selectedCharacter;
+      },
+      setMark: function(cm, actionArgs, vim) {
+        var markName = actionArgs.selectedCharacter;
+        updateMark(cm, vim, markName, cm.getCursor());
+      },
+      replace: function(cm, actionArgs, vim) {
+        var replaceWith = actionArgs.selectedCharacter;
+        var curStart = cm.getCursor();
+        var replaceTo;
+        var curEnd;
+        var selections = cm.listSelections();
+        if (vim.visualMode) {
+          curStart = cm.getCursor('start');
+          curEnd = cm.getCursor('end');
+        } else {
+          var line = cm.getLine(curStart.line);
+          replaceTo = curStart.ch + actionArgs.repeat;
+          if (replaceTo > line.length) {
+            replaceTo=line.length;
+          }
+          curEnd = new Pos(curStart.line, replaceTo);
+        }
+        if (replaceWith=='\n') {
+          if (!vim.visualMode) cm.replaceRange('', curStart, curEnd);
+          // special case, where vim help says to replace by just one line-break
+          (CodeMirror.commands.newlineAndIndentContinueComment || CodeMirror.commands.newlineAndIndent)(cm);
+        } else {
+          var replaceWithStr = cm.getRange(curStart, curEnd);
+          //replace all characters in range by selected, but keep linebreaks
+          replaceWithStr = replaceWithStr.replace(/[^\n]/g, replaceWith);
+          if (vim.visualBlock) {
+            // Tabs are split in visua block before replacing
+            var spaces = new Array(cm.getOption("tabSize")+1).join(' ');
+            replaceWithStr = cm.getSelection();
+            replaceWithStr = replaceWithStr.replace(/\t/g, spaces).replace(/[^\n]/g, replaceWith).split('\n');
+            cm.replaceSelections(replaceWithStr);
+          } else {
+            cm.replaceRange(replaceWithStr, curStart, curEnd);
+          }
+          if (vim.visualMode) {
+            curStart = cursorIsBefore(selections[0].anchor, selections[0].head) ?
+                         selections[0].anchor : selections[0].head;
+            cm.setCursor(curStart);
+            exitVisualMode(cm, false);
+          } else {
+            cm.setCursor(offsetCursor(curEnd, 0, -1));
+          }
+        }
+      },
+      incrementNumberToken: function(cm, actionArgs) {
+        var cur = cm.getCursor();
+        var lineStr = cm.getLine(cur.line);
+        var re = /(-?)(?:(0x)([\da-f]+)|(0b|0|)(\d+))/gi;
+        var match;
+        var start;
+        var end;
+        var numberStr;
+        while ((match = re.exec(lineStr)) !== null) {
+          start = match.index;
+          end = start + match[0].length;
+          if (cur.ch < end)break;
+        }
+        if (!actionArgs.backtrack && (end <= cur.ch))return;
+        if (match) {
+          var baseStr = match[2] || match[4];
+          var digits = match[3] || match[5];
+          var increment = actionArgs.increase ? 1 : -1;
+          var base = {'0b': 2, '0': 8, '': 10, '0x': 16}[baseStr.toLowerCase()];
+          var number = parseInt(match[1] + digits, base) + (increment * actionArgs.repeat);
+          numberStr = number.toString(base);
+          var zeroPadding = baseStr ? new Array(digits.length - numberStr.length + 1 + match[1].length).join('0') : '';
+          if (numberStr.charAt(0) === '-') {
+            numberStr = '-' + baseStr + zeroPadding + numberStr.substr(1);
+          } else {
+            numberStr = baseStr + zeroPadding + numberStr;
+          }
+          var from = new Pos(cur.line, start);
+          var to = new Pos(cur.line, end);
+          cm.replaceRange(numberStr, from, to);
+        } else {
+          return;
+        }
+        cm.setCursor(new Pos(cur.line, start + numberStr.length - 1));
+      },
+      repeatLastEdit: function(cm, actionArgs, vim) {
+        var lastEditInputState = vim.lastEditInputState;
+        if (!lastEditInputState) { return; }
+        var repeat = actionArgs.repeat;
+        if (repeat && actionArgs.repeatIsExplicit) {
+          vim.lastEditInputState.repeatOverride = repeat;
+        } else {
+          repeat = vim.lastEditInputState.repeatOverride || repeat;
+        }
+        repeatLastEdit(cm, vim, repeat, false /** repeatForInsert */);
+      },
+      indent: function(cm, actionArgs) {
+        cm.indentLine(cm.getCursor().line, actionArgs.indentRight);
+      },
+      exitInsertMode: exitInsertMode
+    };
+
+    function defineAction(name, fn) {
+      actions[name] = fn;
+    }
+
+    /*
+     * Below are miscellaneous utility functions used by vim.js
+     */
+
+    /**
+     * Clips cursor to ensure that line is within the buffer's range
+     * If includeLineBreak is true, then allow cur.ch == lineLength.
+     */
+    function clipCursorToContent(cm, cur) {
+      var vim = cm.state.vim;
+      var includeLineBreak = vim.insertMode || vim.visualMode;
+      var line = Math.min(Math.max(cm.firstLine(), cur.line), cm.lastLine() );
+      var maxCh = lineLength(cm, line) - 1 + !!includeLineBreak;
+      var ch = Math.min(Math.max(0, cur.ch), maxCh);
+      return new Pos(line, ch);
+    }
+    function copyArgs(args) {
+      var ret = {};
+      for (var prop in args) {
+        if (args.hasOwnProperty(prop)) {
+          ret[prop] = args[prop];
+        }
+      }
+      return ret;
+    }
+    function offsetCursor(cur, offsetLine, offsetCh) {
+      if (typeof offsetLine === 'object') {
+        offsetCh = offsetLine.ch;
+        offsetLine = offsetLine.line;
+      }
+      return new Pos(cur.line + offsetLine, cur.ch + offsetCh);
+    }
+    function commandMatches(keys, keyMap, context, inputState) {
+      // Partial matches are not applied. They inform the key handler
+      // that the current key sequence is a subsequence of a valid key
+      // sequence, so that the key buffer is not cleared.
+      var match, partial = [], full = [];
+      for (var i = 0; i < keyMap.length; i++) {
+        var command = keyMap[i];
+        if (context == 'insert' && command.context != 'insert' ||
+            command.context && command.context != context ||
+            inputState.operator && command.type == 'action' ||
+            !(match = commandMatch(keys, command.keys))) { continue; }
+        if (match == 'partial') { partial.push(command); }
+        if (match == 'full') { full.push(command); }
+      }
+      return {
+        partial: partial.length && partial,
+        full: full.length && full
+      };
+    }
+    function commandMatch(pressed, mapped) {
+      if (mapped.slice(-11) == '<character>') {
+        // Last character matches anything.
+        var prefixLen = mapped.length - 11;
+        var pressedPrefix = pressed.slice(0, prefixLen);
+        var mappedPrefix = mapped.slice(0, prefixLen);
+        return pressedPrefix == mappedPrefix && pressed.length > prefixLen ? 'full' :
+               mappedPrefix.indexOf(pressedPrefix) == 0 ? 'partial' : false;
+      } else {
+        return pressed == mapped ? 'full' :
+               mapped.indexOf(pressed) == 0 ? 'partial' : false;
+      }
+    }
+    function lastChar(keys) {
+      var match = /^.*(<[^>]+>)$/.exec(keys);
+      var selectedCharacter = match ? match[1] : keys.slice(-1);
+      if (selectedCharacter.length > 1){
+        switch(selectedCharacter){
+          case '<CR>':
+            selectedCharacter='\n';
+            break;
+          case '<Space>':
+            selectedCharacter=' ';
+            break;
+          default:
+            selectedCharacter='';
+            break;
+        }
+      }
+      return selectedCharacter;
+    }
+    function repeatFn(cm, fn, repeat) {
+      return function() {
+        for (var i = 0; i < repeat; i++) {
+          fn(cm);
+        }
+      };
+    }
+    function copyCursor(cur) {
+      return new Pos(cur.line, cur.ch);
+    }
+    function cursorEqual(cur1, cur2) {
+      return cur1.ch == cur2.ch && cur1.line == cur2.line;
+    }
+    function cursorIsBefore(cur1, cur2) {
+      if (cur1.line < cur2.line) {
+        return true;
+      }
+      if (cur1.line == cur2.line && cur1.ch < cur2.ch) {
+        return true;
+      }
+      return false;
+    }
+    function cursorMin(cur1, cur2) {
+      if (arguments.length > 2) {
+        cur2 = cursorMin.apply(undefined, Array.prototype.slice.call(arguments, 1));
+      }
+      return cursorIsBefore(cur1, cur2) ? cur1 : cur2;
+    }
+    function cursorMax(cur1, cur2) {
+      if (arguments.length > 2) {
+        cur2 = cursorMax.apply(undefined, Array.prototype.slice.call(arguments, 1));
+      }
+      return cursorIsBefore(cur1, cur2) ? cur2 : cur1;
+    }
+    function cursorIsBetween(cur1, cur2, cur3) {
+      // returns true if cur2 is between cur1 and cur3.
+      var cur1before2 = cursorIsBefore(cur1, cur2);
+      var cur2before3 = cursorIsBefore(cur2, cur3);
+      return cur1before2 && cur2before3;
+    }
+    function lineLength(cm, lineNum) {
+      return cm.getLine(lineNum).length;
+    }
+    function trim(s) {
+      if (s.trim) {
+        return s.trim();
+      }
+      return s.replace(/^\s+|\s+$/g, '');
+    }
+    function escapeRegex(s) {
+      return s.replace(/([.?*+$\[\]\/\\(){}|\-])/g, '\\$1');
+    }
+    function extendLineToColumn(cm, lineNum, column) {
+      var endCh = lineLength(cm, lineNum);
+      var spaces = new Array(column-endCh+1).join(' ');
+      cm.setCursor(new Pos(lineNum, endCh));
+      cm.replaceRange(spaces, cm.getCursor());
+    }
+    // This functions selects a rectangular block
+    // of text with selectionEnd as any of its corner
+    // Height of block:
+    // Difference in selectionEnd.line and first/last selection.line
+    // Width of the block:
+    // Distance between selectionEnd.ch and any(first considered here) selection.ch
+    function selectBlock(cm, selectionEnd) {
+      var selections = [], ranges = cm.listSelections();
+      var head = copyCursor(cm.clipPos(selectionEnd));
+      var isClipped = !cursorEqual(selectionEnd, head);
+      var curHead = cm.getCursor('head');
+      var primIndex = getIndex(ranges, curHead);
+      var wasClipped = cursorEqual(ranges[primIndex].head, ranges[primIndex].anchor);
+      var max = ranges.length - 1;
+      var index = max - primIndex > primIndex ? max : 0;
+      var base = ranges[index].anchor;
+
+      var firstLine = Math.min(base.line, head.line);
+      var lastLine = Math.max(base.line, head.line);
+      var baseCh = base.ch, headCh = head.ch;
+
+      var dir = ranges[index].head.ch - baseCh;
+      var newDir = headCh - baseCh;
+      if (dir > 0 && newDir <= 0) {
+        baseCh++;
+        if (!isClipped) { headCh--; }
+      } else if (dir < 0 && newDir >= 0) {
+        baseCh--;
+        if (!wasClipped) { headCh++; }
+      } else if (dir < 0 && newDir == -1) {
+        baseCh--;
+        headCh++;
+      }
+      for (var line = firstLine; line <= lastLine; line++) {
+        var range = {anchor: new Pos(line, baseCh), head: new Pos(line, headCh)};
+        selections.push(range);
+      }
+      cm.setSelections(selections);
+      selectionEnd.ch = headCh;
+      base.ch = baseCh;
+      return base;
+    }
+    function selectForInsert(cm, head, height) {
+      var sel = [];
+      for (var i = 0; i < height; i++) {
+        var lineHead = offsetCursor(head, i, 0);
+        sel.push({anchor: lineHead, head: lineHead});
+      }
+      cm.setSelections(sel, 0);
+    }
+    // getIndex returns the index of the cursor in the selections.
+    function getIndex(ranges, cursor, end) {
+      for (var i = 0; i < ranges.length; i++) {
+        var atAnchor = end != 'head' && cursorEqual(ranges[i].anchor, cursor);
+        var atHead = end != 'anchor' && cursorEqual(ranges[i].head, cursor);
+        if (atAnchor || atHead) {
+          return i;
+        }
+      }
+      return -1;
+    }
+    function getSelectedAreaRange(cm, vim) {
+      var lastSelection = vim.lastSelection;
+      var getCurrentSelectedAreaRange = function() {
+        var selections = cm.listSelections();
+        var start =  selections[0];
+        var end = selections[selections.length-1];
+        var selectionStart = cursorIsBefore(start.anchor, start.head) ? start.anchor : start.head;
+        var selectionEnd = cursorIsBefore(end.anchor, end.head) ? end.head : end.anchor;
+        return [selectionStart, selectionEnd];
+      };
+      var getLastSelectedAreaRange = function() {
+        var selectionStart = cm.getCursor();
+        var selectionEnd = cm.getCursor();
+        var block = lastSelection.visualBlock;
+        if (block) {
+          var width = block.width;
+          var height = block.height;
+          selectionEnd = new Pos(selectionStart.line + height, selectionStart.ch + width);
+          var selections = [];
+          // selectBlock creates a 'proper' rectangular block.
+          // We do not want that in all cases, so we manually set selections.
+          for (var i = selectionStart.line; i < selectionEnd.line; i++) {
+            var anchor = new Pos(i, selectionStart.ch);
+            var head = new Pos(i, selectionEnd.ch);
+            var range = {anchor: anchor, head: head};
+            selections.push(range);
+          }
+          cm.setSelections(selections);
+        } else {
+          var start = lastSelection.anchorMark.find();
+          var end = lastSelection.headMark.find();
+          var line = end.line - start.line;
+          var ch = end.ch - start.ch;
+          selectionEnd = {line: selectionEnd.line + line, ch: line ? selectionEnd.ch : ch + selectionEnd.ch};
+          if (lastSelection.visualLine) {
+            selectionStart = new Pos(selectionStart.line, 0);
+            selectionEnd = new Pos(selectionEnd.line, lineLength(cm, selectionEnd.line));
+          }
+          cm.setSelection(selectionStart, selectionEnd);
+        }
+        return [selectionStart, selectionEnd];
+      };
+      if (!vim.visualMode) {
+      // In case of replaying the action.
+        return getLastSelectedAreaRange();
+      } else {
+        return getCurrentSelectedAreaRange();
+      }
+    }
+    // Updates the previous selection with the current selection's values. This
+    // should only be called in visual mode.
+    function updateLastSelection(cm, vim) {
+      var anchor = vim.sel.anchor;
+      var head = vim.sel.head;
+      // To accommodate the effect of lastPastedText in the last selection
+      if (vim.lastPastedText) {
+        head = cm.posFromIndex(cm.indexFromPos(anchor) + vim.lastPastedText.length);
+        vim.lastPastedText = null;
+      }
+      vim.lastSelection = {'anchorMark': cm.setBookmark(anchor),
+                           'headMark': cm.setBookmark(head),
+                           'anchor': copyCursor(anchor),
+                           'head': copyCursor(head),
+                           'visualMode': vim.visualMode,
+                           'visualLine': vim.visualLine,
+                           'visualBlock': vim.visualBlock};
+    }
+    function expandSelection(cm, start, end) {
+      var sel = cm.state.vim.sel;
+      var head = sel.head;
+      var anchor = sel.anchor;
+      var tmp;
+      if (cursorIsBefore(end, start)) {
+        tmp = end;
+        end = start;
+        start = tmp;
+      }
+      if (cursorIsBefore(head, anchor)) {
+        head = cursorMin(start, head);
+        anchor = cursorMax(anchor, end);
+      } else {
+        anchor = cursorMin(start, anchor);
+        head = cursorMax(head, end);
+        head = offsetCursor(head, 0, -1);
+        if (head.ch == -1 && head.line != cm.firstLine()) {
+          head = new Pos(head.line - 1, lineLength(cm, head.line - 1));
+        }
+      }
+      return [anchor, head];
+    }
+    /**
+     * Updates the CodeMirror selection to match the provided vim selection.
+     * If no arguments are given, it uses the current vim selection state.
+     */
+    function updateCmSelection(cm, sel, mode) {
+      var vim = cm.state.vim;
+      sel = sel || vim.sel;
+      var mode = mode ||
+        vim.visualLine ? 'line' : vim.visualBlock ? 'block' : 'char';
+      var cmSel = makeCmSelection(cm, sel, mode);
+      cm.setSelections(cmSel.ranges, cmSel.primary);
+    }
+    function makeCmSelection(cm, sel, mode, exclusive) {
+      var head = copyCursor(sel.head);
+      var anchor = copyCursor(sel.anchor);
+      if (mode == 'char') {
+        var headOffset = !exclusive && !cursorIsBefore(sel.head, sel.anchor) ? 1 : 0;
+        var anchorOffset = cursorIsBefore(sel.head, sel.anchor) ? 1 : 0;
+        head = offsetCursor(sel.head, 0, headOffset);
+        anchor = offsetCursor(sel.anchor, 0, anchorOffset);
+        return {
+          ranges: [{anchor: anchor, head: head}],
+          primary: 0
+        };
+      } else if (mode == 'line') {
+        if (!cursorIsBefore(sel.head, sel.anchor)) {
+          anchor.ch = 0;
+
+          var lastLine = cm.lastLine();
+          if (head.line > lastLine) {
+            head.line = lastLine;
+          }
+          head.ch = lineLength(cm, head.line);
+        } else {
+          head.ch = 0;
+          anchor.ch = lineLength(cm, anchor.line);
+        }
+        return {
+          ranges: [{anchor: anchor, head: head}],
+          primary: 0
+        };
+      } else if (mode == 'block') {
+        var top = Math.min(anchor.line, head.line),
+            fromCh = anchor.ch,
+            bottom = Math.max(anchor.line, head.line),
+            toCh = head.ch;
+        if (fromCh < toCh) { toCh += 1; }
+        else { fromCh += 1; }        var height = bottom - top + 1;
+        var primary = head.line == top ? 0 : height - 1;
+        var ranges = [];
+        for (var i = 0; i < height; i++) {
+          ranges.push({
+            anchor: new Pos(top + i, fromCh),
+            head: new Pos(top + i, toCh)
+          });
+        }
+        return {
+          ranges: ranges,
+          primary: primary
+        };
+      }
+    }
+    function getHead(cm) {
+      var cur = cm.getCursor('head');
+      if (cm.getSelection().length == 1) {
+        // Small corner case when only 1 character is selected. The "real"
+        // head is the left of head and anchor.
+        cur = cursorMin(cur, cm.getCursor('anchor'));
+      }
+      return cur;
+    }
+
+    /**
+     * If moveHead is set to false, the CodeMirror selection will not be
+     * touched. The caller assumes the responsibility of putting the cursor
+    * in the right place.
+     */
+    function exitVisualMode(cm, moveHead) {
+      var vim = cm.state.vim;
+      if (moveHead !== false) {
+        cm.setCursor(clipCursorToContent(cm, vim.sel.head));
+      }
+      updateLastSelection(cm, vim);
+      vim.visualMode = false;
+      vim.visualLine = false;
+      vim.visualBlock = false;
+      if (!vim.insertMode) CodeMirror.signal(cm, "vim-mode-change", {mode: "normal"});
+    }
+
+    // Remove any trailing newlines from the selection. For
+    // example, with the caret at the start of the last word on the line,
+    // 'dw' should word, but not the newline, while 'w' should advance the
+    // caret to the first character of the next line.
+    function clipToLine(cm, curStart, curEnd) {
+      var selection = cm.getRange(curStart, curEnd);
+      // Only clip if the selection ends with trailing newline + whitespace
+      if (/\n\s*$/.test(selection)) {
+        var lines = selection.split('\n');
+        // We know this is all whitespace.
+        lines.pop();
+
+        // Cases:
+        // 1. Last word is an empty line - do not clip the trailing '\n'
+        // 2. Last word is not an empty line - clip the trailing '\n'
+        var line;
+        // Find the line containing the last word, and clip all whitespace up
+        // to it.
+        for (var line = lines.pop(); lines.length > 0 && line && isWhiteSpaceString(line); line = lines.pop()) {
+          curEnd.line--;
+          curEnd.ch = 0;
+        }
+        // If the last word is not an empty line, clip an additional newline
+        if (line) {
+          curEnd.line--;
+          curEnd.ch = lineLength(cm, curEnd.line);
+        } else {
+          curEnd.ch = 0;
+        }
+      }
+    }
+
+    // Expand the selection to line ends.
+    function expandSelectionToLine(_cm, curStart, curEnd) {
+      curStart.ch = 0;
+      curEnd.ch = 0;
+      curEnd.line++;
+    }
+
+    function findFirstNonWhiteSpaceCharacter(text) {
+      if (!text) {
+        return 0;
+      }
+      var firstNonWS = text.search(/\S/);
+      return firstNonWS == -1 ? text.length : firstNonWS;
+    }
+
+    function expandWordUnderCursor(cm, inclusive, _forward, bigWord, noSymbol) {
+      var cur = getHead(cm);
+      var line = cm.getLine(cur.line);
+      var idx = cur.ch;
+
+      // Seek to first word or non-whitespace character, depending on if
+      // noSymbol is true.
+      var test = noSymbol ? wordCharTest[0] : bigWordCharTest [0];
+      while (!test(line.charAt(idx))) {
+        idx++;
+        if (idx >= line.length) { return null; }
+      }
+
+      if (bigWord) {
+        test = bigWordCharTest[0];
+      } else {
+        test = wordCharTest[0];
+        if (!test(line.charAt(idx))) {
+          test = wordCharTest[1];
+        }
+      }
+
+      var end = idx, start = idx;
+      while (test(line.charAt(end)) && end < line.length) { end++; }
+      while (test(line.charAt(start)) && start >= 0) { start--; }
+      start++;
+
+      if (inclusive) {
+        // If present, include all whitespace after word.
+        // Otherwise, include all whitespace before word, except indentation.
+        var wordEnd = end;
+        while (/\s/.test(line.charAt(end)) && end < line.length) { end++; }
+        if (wordEnd == end) {
+          var wordStart = start;
+          while (/\s/.test(line.charAt(start - 1)) && start > 0) { start--; }
+          if (!start) { start = wordStart; }
+        }
+      }
+      return { start: new Pos(cur.line, start), end: new Pos(cur.line, end) };
+    }
+
+    /**
+     * Depends on the following:
+     *
+     * - editor mode should be htmlmixedmode / xml
+     * - mode/xml/xml.js should be loaded
+     * - addon/fold/xml-fold.js should be loaded
+     *
+     * If any of the above requirements are not true, this function noops.
+     *
+     * This is _NOT_ a 100% accurate implementation of vim tag text objects.
+     * The following caveats apply (based off cursory testing, I'm sure there
+     * are other discrepancies):
+     *
+     * - Does not work inside comments:
+     *   ```
+     *   <!-- <div>broken</div> -->
+     *   ```
+     * - Does not work when tags have different cases:
+     *   ```
+     *   <div>broken</DIV>
+     *   ```
+     * - Does not work when cursor is inside a broken tag:
+     *   ```
+     *   <div><brok><en></div>
+     *   ```
+     */
+    function expandTagUnderCursor(cm, head, inclusive) {
+      var cur = head;
+      if (!CodeMirror.findMatchingTag || !CodeMirror.findEnclosingTag) {
+        return { start: cur, end: cur };
+      }
+
+      var tags = CodeMirror.findMatchingTag(cm, head) || CodeMirror.findEnclosingTag(cm, head);
+      if (!tags || !tags.open || !tags.close) {
+        return { start: cur, end: cur };
+      }
+
+      if (inclusive) {
+        return { start: tags.open.from, end: tags.close.to };
+      }
+      return { start: tags.open.to, end: tags.close.from };
+    }
+
+    function recordJumpPosition(cm, oldCur, newCur) {
+      if (!cursorEqual(oldCur, newCur)) {
+        vimGlobalState.jumpList.add(cm, oldCur, newCur);
+      }
+    }
+
+    function recordLastCharacterSearch(increment, args) {
+        vimGlobalState.lastCharacterSearch.increment = increment;
+        vimGlobalState.lastCharacterSearch.forward = args.forward;
+        vimGlobalState.lastCharacterSearch.selectedCharacter = args.selectedCharacter;
+    }
+
+    var symbolToMode = {
+        '(': 'bracket', ')': 'bracket', '{': 'bracket', '}': 'bracket',
+        '[': 'section', ']': 'section',
+        '*': 'comment', '/': 'comment',
+        'm': 'method', 'M': 'method',
+        '#': 'preprocess'
+    };
+    var findSymbolModes = {
+      bracket: {
+        isComplete: function(state) {
+          if (state.nextCh === state.symb) {
+            state.depth++;
+            if (state.depth >= 1)return true;
+          } else if (state.nextCh === state.reverseSymb) {
+            state.depth--;
+          }
+          return false;
+        }
+      },
+      section: {
+        init: function(state) {
+          state.curMoveThrough = true;
+          state.symb = (state.forward ? ']' : '[') === state.symb ? '{' : '}';
+        },
+        isComplete: function(state) {
+          return state.index === 0 && state.nextCh === state.symb;
+        }
+      },
+      comment: {
+        isComplete: function(state) {
+          var found = state.lastCh === '*' && state.nextCh === '/';
+          state.lastCh = state.nextCh;
+          return found;
+        }
+      },
+      // TODO: The original Vim implementation only operates on level 1 and 2.
+      // The current implementation doesn't check for code block level and
+      // therefore it operates on any levels.
+      method: {
+        init: function(state) {
+          state.symb = (state.symb === 'm' ? '{' : '}');
+          state.reverseSymb = state.symb === '{' ? '}' : '{';
+        },
+        isComplete: function(state) {
+          if (state.nextCh === state.symb)return true;
+          return false;
+        }
+      },
+      preprocess: {
+        init: function(state) {
+          state.index = 0;
+        },
+        isComplete: function(state) {
+          if (state.nextCh === '#') {
+            var token = state.lineText.match(/^#(\w+)/)[1];
+            if (token === 'endif') {
+              if (state.forward && state.depth === 0) {
+                return true;
+              }
+              state.depth++;
+            } else if (token === 'if') {
+              if (!state.forward && state.depth === 0) {
+                return true;
+              }
+              state.depth--;
+            }
+            if (token === 'else' && state.depth === 0)return true;
+          }
+          return false;
+        }
+      }
+    };
+    function findSymbol(cm, repeat, forward, symb) {
+      var cur = copyCursor(cm.getCursor());
+      var increment = forward ? 1 : -1;
+      var endLine = forward ? cm.lineCount() : -1;
+      var curCh = cur.ch;
+      var line = cur.line;
+      var lineText = cm.getLine(line);
+      var state = {
+        lineText: lineText,
+        nextCh: lineText.charAt(curCh),
+        lastCh: null,
+        index: curCh,
+        symb: symb,
+        reverseSymb: (forward ?  { ')': '(', '}': '{' } : { '(': ')', '{': '}' })[symb],
+        forward: forward,
+        depth: 0,
+        curMoveThrough: false
+      };
+      var mode = symbolToMode[symb];
+      if (!mode)return cur;
+      var init = findSymbolModes[mode].init;
+      var isComplete = findSymbolModes[mode].isComplete;
+      if (init) { init(state); }
+      while (line !== endLine && repeat) {
+        state.index += increment;
+        state.nextCh = state.lineText.charAt(state.index);
+        if (!state.nextCh) {
+          line += increment;
+          state.lineText = cm.getLine(line) || '';
+          if (increment > 0) {
+            state.index = 0;
+          } else {
+            var lineLen = state.lineText.length;
+            state.index = (lineLen > 0) ? (lineLen-1) : 0;
+          }
+          state.nextCh = state.lineText.charAt(state.index);
+        }
+        if (isComplete(state)) {
+          cur.line = line;
+          cur.ch = state.index;
+          repeat--;
+        }
+      }
+      if (state.nextCh || state.curMoveThrough) {
+        return new Pos(line, state.index);
+      }
+      return cur;
+    }
+
+    /*
+     * Returns the boundaries of the next word. If the cursor in the middle of
+     * the word, then returns the boundaries of the current word, starting at
+     * the cursor. If the cursor is at the start/end of a word, and we are going
+     * forward/backward, respectively, find the boundaries of the next word.
+     *
+     * @param {CodeMirror} cm CodeMirror object.
+     * @param {Cursor} cur The cursor position.
+     * @param {boolean} forward True to search forward. False to search
+     *     backward.
+     * @param {boolean} bigWord True if punctuation count as part of the word.
+     *     False if only [a-zA-Z0-9] characters count as part of the word.
+     * @param {boolean} emptyLineIsWord True if empty lines should be treated
+     *     as words.
+     * @return {Object{from:number, to:number, line: number}} The boundaries of
+     *     the word, or null if there are no more words.
+     */
+    function findWord(cm, cur, forward, bigWord, emptyLineIsWord) {
+      var lineNum = cur.line;
+      var pos = cur.ch;
+      var line = cm.getLine(lineNum);
+      var dir = forward ? 1 : -1;
+      var charTests = bigWord ? bigWordCharTest: wordCharTest;
+
+      if (emptyLineIsWord && line == '') {
+        lineNum += dir;
+        line = cm.getLine(lineNum);
+        if (!isLine(cm, lineNum)) {
+          return null;
+        }
+        pos = (forward) ? 0 : line.length;
+      }
+
+      while (true) {
+        if (emptyLineIsWord && line == '') {
+          return { from: 0, to: 0, line: lineNum };
+        }
+        var stop = (dir > 0) ? line.length : -1;
+        var wordStart = stop, wordEnd = stop;
+        // Find bounds of next word.
+        while (pos != stop) {
+          var foundWord = false;
+          for (var i = 0; i < charTests.length && !foundWord; ++i) {
+            if (charTests[i](line.charAt(pos))) {
+              wordStart = pos;
+              // Advance to end of word.
+              while (pos != stop && charTests[i](line.charAt(pos))) {
+                pos += dir;
+              }
+              wordEnd = pos;
+              foundWord = wordStart != wordEnd;
+              if (wordStart == cur.ch && lineNum == cur.line &&
+                  wordEnd == wordStart + dir) {
+                // We started at the end of a word. Find the next one.
+                continue;
+              } else {
+                return {
+                  from: Math.min(wordStart, wordEnd + 1),
+                  to: Math.max(wordStart, wordEnd),
+                  line: lineNum };
+              }
+            }
+          }
+          if (!foundWord) {
+            pos += dir;
+          }
+        }
+        // Advance to next/prev line.
+        lineNum += dir;
+        if (!isLine(cm, lineNum)) {
+          return null;
+        }
+        line = cm.getLine(lineNum);
+        pos = (dir > 0) ? 0 : line.length;
+      }
+    }
+
+    /**
+     * @param {CodeMirror} cm CodeMirror object.
+     * @param {Pos} cur The position to start from.
+     * @param {int} repeat Number of words to move past.
+     * @param {boolean} forward True to search forward. False to search
+     *     backward.
+     * @param {boolean} wordEnd True to move to end of word. False to move to
+     *     beginning of word.
+     * @param {boolean} bigWord True if punctuation count as part of the word.
+     *     False if only alphabet characters count as part of the word.
+     * @return {Cursor} The position the cursor should move to.
+     */
+    function moveToWord(cm, cur, repeat, forward, wordEnd, bigWord) {
+      var curStart = copyCursor(cur);
+      var words = [];
+      if (forward && !wordEnd || !forward && wordEnd) {
+        repeat++;
+      }
+      // For 'e', empty lines are not considered words, go figure.
+      var emptyLineIsWord = !(forward && wordEnd);
+      for (var i = 0; i < repeat; i++) {
+        var word = findWord(cm, cur, forward, bigWord, emptyLineIsWord);
+        if (!word) {
+          var eodCh = lineLength(cm, cm.lastLine());
+          words.push(forward
+              ? {line: cm.lastLine(), from: eodCh, to: eodCh}
+              : {line: 0, from: 0, to: 0});
+          break;
+        }
+        words.push(word);
+        cur = new Pos(word.line, forward ? (word.to - 1) : word.from);
+      }
+      var shortCircuit = words.length != repeat;
+      var firstWord = words[0];
+      var lastWord = words.pop();
+      if (forward && !wordEnd) {
+        // w
+        if (!shortCircuit && (firstWord.from != curStart.ch || firstWord.line != curStart.line)) {
+          // We did not start in the middle of a word. Discard the extra word at the end.
+          lastWord = words.pop();
+        }
+        return new Pos(lastWord.line, lastWord.from);
+      } else if (forward && wordEnd) {
+        return new Pos(lastWord.line, lastWord.to - 1);
+      } else if (!forward && wordEnd) {
+        // ge
+        if (!shortCircuit && (firstWord.to != curStart.ch || firstWord.line != curStart.line)) {
+          // We did not start in the middle of a word. Discard the extra word at the end.
+          lastWord = words.pop();
+        }
+        return new Pos(lastWord.line, lastWord.to);
+      } else {
+        // b
+        return new Pos(lastWord.line, lastWord.from);
+      }
+    }
+
+    function moveToEol(cm, head, motionArgs, vim, keepHPos) {
+      var cur = head;
+      var retval= new Pos(cur.line + motionArgs.repeat - 1, Infinity);
+      var end=cm.clipPos(retval);
+      end.ch--;
+      if (!keepHPos) {
+        vim.lastHPos = Infinity;
+        vim.lastHSPos = cm.charCoords(end,'div').left;
+      }
+      return retval;
+    }
+
+    function moveToCharacter(cm, repeat, forward, character) {
+      var cur = cm.getCursor();
+      var start = cur.ch;
+      var idx;
+      for (var i = 0; i < repeat; i ++) {
+        var line = cm.getLine(cur.line);
+        idx = charIdxInLine(start, line, character, forward, true);
+        if (idx == -1) {
+          return null;
+        }
+        start = idx;
+      }
+      return new Pos(cm.getCursor().line, idx);
+    }
+
+    function moveToColumn(cm, repeat) {
+      // repeat is always >= 1, so repeat - 1 always corresponds
+      // to the column we want to go to.
+      var line = cm.getCursor().line;
+      return clipCursorToContent(cm, new Pos(line, repeat - 1));
+    }
+
+    function updateMark(cm, vim, markName, pos) {
+      if (!inArray(markName, validMarks)) {
+        return;
+      }
+      if (vim.marks[markName]) {
+        vim.marks[markName].clear();
+      }
+      vim.marks[markName] = cm.setBookmark(pos);
+    }
+
+    function charIdxInLine(start, line, character, forward, includeChar) {
+      // Search for char in line.
+      // motion_options: {forward, includeChar}
+      // If includeChar = true, include it too.
+      // If forward = true, search forward, else search backwards.
+      // If char is not found on this line, do nothing
+      var idx;
+      if (forward) {
+        idx = line.indexOf(character, start + 1);
+        if (idx != -1 && !includeChar) {
+          idx -= 1;
+        }
+      } else {
+        idx = line.lastIndexOf(character, start - 1);
+        if (idx != -1 && !includeChar) {
+          idx += 1;
+        }
+      }
+      return idx;
+    }
+
+    function findParagraph(cm, head, repeat, dir, inclusive) {
+      var line = head.line;
+      var min = cm.firstLine();
+      var max = cm.lastLine();
+      var start, end, i = line;
+      function isEmpty(i) { return !cm.getLine(i); }
+      function isBoundary(i, dir, any) {
+        if (any) { return isEmpty(i) != isEmpty(i + dir); }
+        return !isEmpty(i) && isEmpty(i + dir);
+      }
+      if (dir) {
+        while (min <= i && i <= max && repeat > 0) {
+          if (isBoundary(i, dir)) { repeat--; }
+          i += dir;
+        }
+        return new Pos(i, 0);
+      }
+
+      var vim = cm.state.vim;
+      if (vim.visualLine && isBoundary(line, 1, true)) {
+        var anchor = vim.sel.anchor;
+        if (isBoundary(anchor.line, -1, true)) {
+          if (!inclusive || anchor.line != line) {
+            line += 1;
+          }
+        }
+      }
+      var startState = isEmpty(line);
+      for (i = line; i <= max && repeat; i++) {
+        if (isBoundary(i, 1, true)) {
+          if (!inclusive || isEmpty(i) != startState) {
+            repeat--;
+          }
+        }
+      }
+      end = new Pos(i, 0);
+      // select boundary before paragraph for the last one
+      if (i > max && !startState) { startState = true; }
+      else { inclusive = false; }
+      for (i = line; i > min; i--) {
+        if (!inclusive || isEmpty(i) == startState || i == line) {
+          if (isBoundary(i, -1, true)) { break; }
+        }
+      }
+      start = new Pos(i, 0);
+      return { start: start, end: end };
+    }
+  function getSentence(cm, cur, repeat, dir, inclusive /*includes whitespace*/) {
+    /*
+    Takes an index object
+    {
+    line: the line string,
+    ln: line number,
+    pos: index in line,
+    dir: direction of traversal (-1 or 1)
+    }
+    and modifies the pos member to represent the
+    next valid position or sets the line to null if there are
+    no more valid positions.
+   */
+    function nextChar(curr) {
+      if (curr.pos + curr.dir < 0 || curr.pos + curr.dir >= curr.line.length) {
+          curr.line = null;
+        }
+      else {
+        curr.pos += curr.dir;
+      }
+    }
+    /*
+    Performs one iteration of traversal in forward direction
+    Returns an index object of the new location
+   */
+    function forward(cm, ln, pos, dir) {
+      var line = cm.getLine(ln);
+
+      var curr = {
+        line: line,
+        ln: ln,
+        pos: pos,
+        dir: dir,
+      };
+
+      if (curr.line === "") {
+        return { ln: curr.ln, pos: curr.pos };
+      }
+
+      var lastSentencePos = curr.pos;
+
+      // Move one step to skip character we start on
+      nextChar(curr);
+
+      while (curr.line !== null) {
+        lastSentencePos = curr.pos;
+        if (isEndOfSentenceSymbol(curr.line[curr.pos])) {
+          if (!inclusive) {
+            return { ln: curr.ln, pos: curr.pos + 1 };
+          } else {
+            nextChar(curr);
+            while (curr.line !== null ) {
+              if (isWhiteSpaceString(curr.line[curr.pos])) {
+                lastSentencePos = curr.pos;
+                nextChar(curr);
+              } else {
+                break;
+              }
+            }
+            return { ln: curr.ln, pos: lastSentencePos + 1, };
+          }
+        }
+        nextChar(curr);
+      }
+      return { ln: curr.ln, pos: lastSentencePos + 1 };
+    }
+
+    /*
+    Performs one iteration of traversal in reverse direction
+    Returns an index object of the new location
+   */
+    function reverse(cm, ln, pos, dir) {
+      var line = cm.getLine(ln);
+
+      var curr = {
+        line: line,
+        ln: ln,
+        pos: pos,
+        dir: dir,
+      };
+
+      if (curr.line === "") {
+        return { ln: curr.ln, pos: curr.pos };
+      }
+
+      var lastSentencePos = curr.pos;
+
+      // Move one step to skip character we start on
+      nextChar(curr);
+
+      while (curr.line !== null) {
+        if (!isWhiteSpaceString(curr.line[curr.pos]) && !isEndOfSentenceSymbol(curr.line[curr.pos])) {
+          lastSentencePos = curr.pos;
+        }
+
+        else if (isEndOfSentenceSymbol(curr.line[curr.pos]) ) {
+          if (!inclusive) {
+            return { ln: curr.ln, pos: lastSentencePos };
+          } else {
+              if (isWhiteSpaceString(curr.line[curr.pos + 1])) {
+                return { ln: curr.ln, pos: curr.pos + 1, };
+              } else {
+                return {ln: curr.ln, pos: lastSentencePos};
+              }
+          }
+        }
+
+        nextChar(curr);
+      }
+      curr.line = line;
+      if (inclusive && isWhiteSpaceString(curr.line[curr.pos])) {
+        return { ln: curr.ln, pos: curr.pos };
+      } else {
+        return { ln: curr.ln, pos: lastSentencePos };
+      }
+
+    }
+
+    var curr_index = {
+      ln: cur.line,
+      pos: cur.ch,
+    };
+
+    while (repeat > 0) {
+      if (dir < 0) {
+        curr_index = reverse(cm, curr_index.ln, curr_index.pos, dir);
+      }
+      else {
+        curr_index = forward(cm, curr_index.ln, curr_index.pos, dir);
+      }
+      repeat--;
+    }
+
+    return new Pos(curr_index.ln, curr_index.pos);
+  }
+
+  function findSentence(cm, cur, repeat, dir) {
+
+    /*
+    Takes an index object
+    {
+    line: the line string,
+    ln: line number,
+    pos: index in line,
+    dir: direction of traversal (-1 or 1)
+    }
+    and modifies the line, ln, and pos members to represent the
+    next valid position or sets them to null if there are
+    no more valid positions.
+   */
+      function nextChar(cm, idx) {
+        if (idx.pos + idx.dir < 0 || idx.pos + idx.dir >= idx.line.length) {
+          idx.ln += idx.dir;
+          if (!isLine(cm, idx.ln)) {
+            idx.line = null;
+            idx.ln = null;
+            idx.pos = null;
+            return;
+          }
+          idx.line = cm.getLine(idx.ln);
+          idx.pos = (idx.dir > 0) ? 0 : idx.line.length - 1;
+        }
+        else {
+          idx.pos += idx.dir;
+        }
+      }
+
+      /*
+        Performs one iteration of traversal in forward direction
+        Returns an index object of the new location
+       */
+      function forward(cm, ln, pos, dir) {
+        var line = cm.getLine(ln);
+        var stop = (line === "");
+
+        var curr = {
+          line: line,
+          ln: ln,
+          pos: pos,
+          dir: dir,
+        };
+
+        var last_valid = {
+          ln: curr.ln,
+          pos: curr.pos,
+        };
+
+        var skip_empty_lines = (curr.line === "");
+
+        // Move one step to skip character we start on
+        nextChar(cm, curr);
+
+        while (curr.line !== null) {
+          last_valid.ln = curr.ln;
+          last_valid.pos = curr.pos;
+
+          if (curr.line === "" && !skip_empty_lines) {
+            return { ln: curr.ln, pos: curr.pos, };
+          }
+          else if (stop && curr.line !== "" && !isWhiteSpaceString(curr.line[curr.pos])) {
+            return { ln: curr.ln, pos: curr.pos, };
+          }
+          else if (isEndOfSentenceSymbol(curr.line[curr.pos])
+            && !stop
+            && (curr.pos === curr.line.length - 1
+              || isWhiteSpaceString(curr.line[curr.pos + 1]))) {
+            stop = true;
+          }
+
+          nextChar(cm, curr);
+        }
+
+        /*
+          Set the position to the last non whitespace character on the last
+          valid line in the case that we reach the end of the document.
+        */
+        var line = cm.getLine(last_valid.ln);
+        last_valid.pos = 0;
+        for(var i = line.length - 1; i >= 0; --i) {
+          if (!isWhiteSpaceString(line[i])) {
+            last_valid.pos = i;
+            break;
+          }
+        }
+
+        return last_valid;
+
+      }
+
+      /*
+        Performs one iteration of traversal in reverse direction
+        Returns an index object of the new location
+       */
+      function reverse(cm, ln, pos, dir) {
+        var line = cm.getLine(ln);
+
+        var curr = {
+          line: line,
+          ln: ln,
+          pos: pos,
+          dir: dir,
+        };
+
+        var last_valid = {
+          ln: curr.ln,
+          pos: null,
+        };
+
+        var skip_empty_lines = (curr.line === "");
+
+        // Move one step to skip character we start on
+        nextChar(cm, curr);
+
+        while (curr.line !== null) {
+
+          if (curr.line === "" && !skip_empty_lines) {
+            if (last_valid.pos !== null) {
+              return last_valid;
+            }
+            else {
+              return { ln: curr.ln, pos: curr.pos };
+            }
+          }
+          else if (isEndOfSentenceSymbol(curr.line[curr.pos])
+              && last_valid.pos !== null
+              && !(curr.ln === last_valid.ln && curr.pos + 1 === last_valid.pos)) {
+            return last_valid;
+          }
+          else if (curr.line !== "" && !isWhiteSpaceString(curr.line[curr.pos])) {
+            skip_empty_lines = false;
+            last_valid = { ln: curr.ln, pos: curr.pos };
+          }
+
+          nextChar(cm, curr);
+        }
+
+        /*
+          Set the position to the first non whitespace character on the last
+          valid line in the case that we reach the beginning of the document.
+        */
+        var line = cm.getLine(last_valid.ln);
+        last_valid.pos = 0;
+        for(var i = 0; i < line.length; ++i) {
+          if (!isWhiteSpaceString(line[i])) {
+            last_valid.pos = i;
+            break;
+          }
+        }
+        return last_valid;
+      }
+
+      var curr_index = {
+        ln: cur.line,
+        pos: cur.ch,
+      };
+
+      while (repeat > 0) {
+        if (dir < 0) {
+          curr_index = reverse(cm, curr_index.ln, curr_index.pos, dir);
+        }
+        else {
+          curr_index = forward(cm, curr_index.ln, curr_index.pos, dir);
+        }
+        repeat--;
+      }
+
+      return new Pos(curr_index.ln, curr_index.pos);
+    }
+
+    // TODO: perhaps this finagling of start and end positions belongs
+    // in codemirror/replaceRange?
+    function selectCompanionObject(cm, head, symb, inclusive) {
+      var cur = head, start, end;
+
+      var bracketRegexp = ({
+        '(': /[()]/, ')': /[()]/,
+        '[': /[[\]]/, ']': /[[\]]/,
+        '{': /[{}]/, '}': /[{}]/,
+        '<': /[<>]/, '>': /[<>]/})[symb];
+      var openSym = ({
+        '(': '(', ')': '(',
+        '[': '[', ']': '[',
+        '{': '{', '}': '{',
+        '<': '<', '>': '<'})[symb];
+      var curChar = cm.getLine(cur.line).charAt(cur.ch);
+      // Due to the behavior of scanForBracket, we need to add an offset if the
+      // cursor is on a matching open bracket.
+      var offset = curChar === openSym ? 1 : 0;
+
+      start = cm.scanForBracket(new Pos(cur.line, cur.ch + offset), -1, undefined, {'bracketRegex': bracketRegexp});
+      end = cm.scanForBracket(new Pos(cur.line, cur.ch + offset), 1, undefined, {'bracketRegex': bracketRegexp});
+
+      if (!start || !end) {
+        return { start: cur, end: cur };
+      }
+
+      start = start.pos;
+      end = end.pos;
+
+      if ((start.line == end.line && start.ch > end.ch)
+          || (start.line > end.line)) {
+        var tmp = start;
+        start = end;
+        end = tmp;
+      }
+
+      if (inclusive) {
+        end.ch += 1;
+      } else {
+        start.ch += 1;
+      }
+
+      return { start: start, end: end };
+    }
+
+    // Takes in a symbol and a cursor and tries to simulate text objects that
+    // have identical opening and closing symbols
+    // TODO support across multiple lines
+    function findBeginningAndEnd(cm, head, symb, inclusive) {
+      var cur = copyCursor(head);
+      var line = cm.getLine(cur.line);
+      var chars = line.split('');
+      var start, end, i, len;
+      var firstIndex = chars.indexOf(symb);
+
+      // the decision tree is to always look backwards for the beginning first,
+      // but if the cursor is in front of the first instance of the symb,
+      // then move the cursor forward
+      if (cur.ch < firstIndex) {
+        cur.ch = firstIndex;
+        // Why is this line even here???
+        // cm.setCursor(cur.line, firstIndex+1);
+      }
+      // otherwise if the cursor is currently on the closing symbol
+      else if (firstIndex < cur.ch && chars[cur.ch] == symb) {
+        end = cur.ch; // assign end to the current cursor
+        --cur.ch; // make sure to look backwards
+      }
+
+      // if we're currently on the symbol, we've got a start
+      if (chars[cur.ch] == symb && !end) {
+        start = cur.ch + 1; // assign start to ahead of the cursor
+      } else {
+        // go backwards to find the start
+        for (i = cur.ch; i > -1 && !start; i--) {
+          if (chars[i] == symb) {
+            start = i + 1;
+          }
+        }
+      }
+
+      // look forwards for the end symbol
+      if (start && !end) {
+        for (i = start, len = chars.length; i < len && !end; i++) {
+          if (chars[i] == symb) {
+            end = i;
+          }
+        }
+      }
+
+      // nothing found
+      if (!start || !end) {
+        return { start: cur, end: cur };
+      }
+
+      // include the symbols
+      if (inclusive) {
+        --start; ++end;
+      }
+
+      return {
+        start: new Pos(cur.line, start),
+        end: new Pos(cur.line, end)
+      };
+    }
+
+    // Search functions
+    defineOption('pcre', true, 'boolean');
+    function SearchState() {}
+    SearchState.prototype = {
+      getQuery: function() {
+        return vimGlobalState.query;
+      },
+      setQuery: function(query) {
+        vimGlobalState.query = query;
+      },
+      getOverlay: function() {
+        return this.searchOverlay;
+      },
+      setOverlay: function(overlay) {
+        this.searchOverlay = overlay;
+      },
+      isReversed: function() {
+        return vimGlobalState.isReversed;
+      },
+      setReversed: function(reversed) {
+        vimGlobalState.isReversed = reversed;
+      },
+      getScrollbarAnnotate: function() {
+        return this.annotate;
+      },
+      setScrollbarAnnotate: function(annotate) {
+        this.annotate = annotate;
+      }
+    };
+    function getSearchState(cm) {
+      var vim = cm.state.vim;
+      return vim.searchState_ || (vim.searchState_ = new SearchState());
+    }
+    function splitBySlash(argString) {
+      return splitBySeparator(argString, '/');
+    }
+
+    function findUnescapedSlashes(argString) {
+      return findUnescapedSeparators(argString, '/');
+    }
+
+    function splitBySeparator(argString, separator) {
+      var slashes = findUnescapedSeparators(argString, separator) || [];
+      if (!slashes.length) return [];
+      var tokens = [];
+      // in case of strings like foo/bar
+      if (slashes[0] !== 0) return;
+      for (var i = 0; i < slashes.length; i++) {
+        if (typeof slashes[i] == 'number')
+          tokens.push(argString.substring(slashes[i] + 1, slashes[i+1]));
+      }
+      return tokens;
+    }
+
+    function findUnescapedSeparators(str, separator) {
+      if (!separator)
+        separator = '/';
+
+      var escapeNextChar = false;
+      var slashes = [];
+      for (var i = 0; i < str.length; i++) {
+        var c = str.charAt(i);
+        if (!escapeNextChar && c == separator) {
+          slashes.push(i);
+        }
+        escapeNextChar = !escapeNextChar && (c == '\\');
+      }
+      return slashes;
+    }
+
+    // Translates a search string from ex (vim) syntax into javascript form.
+    function translateRegex(str) {
+      // When these match, add a '\' if unescaped or remove one if escaped.
+      var specials = '|(){';
+      // Remove, but never add, a '\' for these.
+      var unescape = '}';
+      var escapeNextChar = false;
+      var out = [];
+      for (var i = -1; i < str.length; i++) {
+        var c = str.charAt(i) || '';
+        var n = str.charAt(i+1) || '';
+        var specialComesNext = (n && specials.indexOf(n) != -1);
+        if (escapeNextChar) {
+          if (c !== '\\' || !specialComesNext) {
+            out.push(c);
+          }
+          escapeNextChar = false;
+        } else {
+          if (c === '\\') {
+            escapeNextChar = true;
+            // Treat the unescape list as special for removing, but not adding '\'.
+            if (n && unescape.indexOf(n) != -1) {
+              specialComesNext = true;
+            }
+            // Not passing this test means removing a '\'.
+            if (!specialComesNext || n === '\\') {
+              out.push(c);
+            }
+          } else {
+            out.push(c);
+            if (specialComesNext && n !== '\\') {
+              out.push('\\');
+            }
+          }
+        }
+      }
+      return out.join('');
+    }
+
+    // Translates the replace part of a search and replace from ex (vim) syntax into
+    // javascript form.  Similar to translateRegex, but additionally fixes back references
+    // (translates '\[0..9]' to '$[0..9]') and follows different rules for escaping '$'.
+    var charUnescapes = {'\\n': '\n', '\\r': '\r', '\\t': '\t'};
+    function translateRegexReplace(str) {
+      var escapeNextChar = false;
+      var out = [];
+      for (var i = -1; i < str.length; i++) {
+        var c = str.charAt(i) || '';
+        var n = str.charAt(i+1) || '';
+        if (charUnescapes[c + n]) {
+          out.push(charUnescapes[c+n]);
+          i++;
+        } else if (escapeNextChar) {
+          // At any point in the loop, escapeNextChar is true if the previous
+          // character was a '\' and was not escaped.
+          out.push(c);
+          escapeNextChar = false;
+        } else {
+          if (c === '\\') {
+            escapeNextChar = true;
+            if ((isNumber(n) || n === '$')) {
+              out.push('$');
+            } else if (n !== '/' && n !== '\\') {
+              out.push('\\');
+            }
+          } else {
+            if (c === '$') {
+              out.push('$');
+            }
+            out.push(c);
+            if (n === '/') {
+              out.push('\\');
+            }
+          }
+        }
+      }
+      return out.join('');
+    }
+
+    // Unescape \ and / in the replace part, for PCRE mode.
+    var unescapes = {'\\/': '/', '\\\\': '\\', '\\n': '\n', '\\r': '\r', '\\t': '\t', '\\&':'&'};
+    function unescapeRegexReplace(str) {
+      var stream = new CodeMirror.StringStream(str);
+      var output = [];
+      while (!stream.eol()) {
+        // Search for \.
+        while (stream.peek() && stream.peek() != '\\') {
+          output.push(stream.next());
+        }
+        var matched = false;
+        for (var matcher in unescapes) {
+          if (stream.match(matcher, true)) {
+            matched = true;
+            output.push(unescapes[matcher]);
+            break;
+          }
+        }
+        if (!matched) {
+          // Don't change anything
+          output.push(stream.next());
+        }
+      }
+      return output.join('');
+    }
+
+    /**
+     * Extract the regular expression from the query and return a Regexp object.
+     * Returns null if the query is blank.
+     * If ignoreCase is passed in, the Regexp object will have the 'i' flag set.
+     * If smartCase is passed in, and the query contains upper case letters,
+     *   then ignoreCase is overridden, and the 'i' flag will not be set.
+     * If the query contains the /i in the flag part of the regular expression,
+     *   then both ignoreCase and smartCase are ignored, and 'i' will be passed
+     *   through to the Regex object.
+     */
+    function parseQuery(query, ignoreCase, smartCase) {
+      // First update the last search register
+      var lastSearchRegister = vimGlobalState.registerController.getRegister('/');
+      lastSearchRegister.setText(query);
+      // Check if the query is already a regex.
+      if (query instanceof RegExp) { return query; }
+      // First try to extract regex + flags from the input. If no flags found,
+      // extract just the regex. IE does not accept flags directly defined in
+      // the regex string in the form /regex/flags
+      var slashes = findUnescapedSlashes(query);
+      var regexPart;
+      var forceIgnoreCase;
+      if (!slashes.length) {
+        // Query looks like 'regexp'
+        regexPart = query;
+      } else {
+        // Query looks like 'regexp/...'
+        regexPart = query.substring(0, slashes[0]);
+        var flagsPart = query.substring(slashes[0]);
+        forceIgnoreCase = (flagsPart.indexOf('i') != -1);
+      }
+      if (!regexPart) {
+        return null;
+      }
+      if (!getOption('pcre')) {
+        regexPart = translateRegex(regexPart);
+      }
+      if (smartCase) {
+        ignoreCase = (/^[^A-Z]*$/).test(regexPart);
+      }
+      var regexp = new RegExp(regexPart,
+          (ignoreCase || forceIgnoreCase) ? 'im' : 'm');
+      return regexp;
+    }
+
+    /**
+     * dom - Document Object Manipulator
+     * Usage:
+     *   dom('<tag>'|<node>[, ...{<attributes>|<$styles>}|<child-node>|'<text>'])
+     * Examples:
+     *   dom('div', {id:'xyz'}, dom('p', 'CM rocks!', {$color:'red'}))
+     *   dom(document.head, dom('script', 'alert("hello!")'))
+     * Not supported:
+     *   dom('p', ['arrays are objects'], Error('objects specify attributes'))
+     */
+    function dom(n) {
+      if (typeof n === 'string') n = document.createElement(n);
+      for (var a, i = 1; i < arguments.length; i++) {
+        if (!(a = arguments[i])) continue;
+        if (typeof a !== 'object') a = document.createTextNode(a);
+        if (a.nodeType) n.appendChild(a);
+        else for (var key in a) {
+          if (!Object.prototype.hasOwnProperty.call(a, key)) continue;
+          if (key[0] === '$') n.style[key.slice(1)] = a[key];
+          else n.setAttribute(key, a[key]);
+        }
+      }
+      return n;
+    }
+
+    function showConfirm(cm, template) {
+      var pre = dom('div', {$color: 'red', $whiteSpace: 'pre', class: 'cm-vim-message'}, template);
+      if (cm.openNotification) {
+        cm.openNotification(pre, {bottom: true, duration: 5000});
+      } else {
+        alert(pre.innerText);
+      }
+    }
+
+    function makePrompt(prefix, desc) {
+      return dom(document.createDocumentFragment(),
+               dom('span', {$fontFamily: 'monospace', $whiteSpace: 'pre'},
+                 prefix,
+                 dom('input', {type: 'text', autocorrect: 'off',
+                               autocapitalize: 'off', spellcheck: 'false'})),
+               desc && dom('span', {$color: '#888'}, desc));
+    }
+
+    function showPrompt(cm, options) {
+      var template = makePrompt(options.prefix, options.desc);
+      if (cm.openDialog) {
+        cm.openDialog(template, options.onClose, {
+          onKeyDown: options.onKeyDown, onKeyUp: options.onKeyUp,
+          bottom: true, selectValueOnOpen: false, value: options.value
+        });
+      }
+      else {
+        var shortText = '';
+        if (typeof options.prefix != "string" && options.prefix) shortText += options.prefix.textContent;
+        if (options.desc) shortText += " " + options.desc;
+        options.onClose(prompt(shortText, ''));
+      }
+    }
+
+    function regexEqual(r1, r2) {
+      if (r1 instanceof RegExp && r2 instanceof RegExp) {
+          var props = ['global', 'multiline', 'ignoreCase', 'source'];
+          for (var i = 0; i < props.length; i++) {
+              var prop = props[i];
+              if (r1[prop] !== r2[prop]) {
+                  return false;
+              }
+          }
+          return true;
+      }
+      return false;
+    }
+    // Returns true if the query is valid.
+    function updateSearchQuery(cm, rawQuery, ignoreCase, smartCase) {
+      if (!rawQuery) {
+        return;
+      }
+      var state = getSearchState(cm);
+      var query = parseQuery(rawQuery, !!ignoreCase, !!smartCase);
+      if (!query) {
+        return;
+      }
+      highlightSearchMatches(cm, query);
+      if (regexEqual(query, state.getQuery())) {
+        return query;
+      }
+      state.setQuery(query);
+      return query;
+    }
+    function searchOverlay(query) {
+      if (query.source.charAt(0) == '^') {
+        var matchSol = true;
+      }
+      return {
+        token: function(stream) {
+          if (matchSol && !stream.sol()) {
+            stream.skipToEnd();
+            return;
+          }
+          var match = stream.match(query, false);
+          if (match) {
+            if (match[0].length == 0) {
+              // Matched empty string, skip to next.
+              stream.next();
+              return 'searching';
+            }
+            if (!stream.sol()) {
+              // Backtrack 1 to match \b
+              stream.backUp(1);
+              if (!query.exec(stream.next() + match[0])) {
+                stream.next();
+                return null;
+              }
+            }
+            stream.match(query);
+            return 'searching';
+          }
+          while (!stream.eol()) {
+            stream.next();
+            if (stream.match(query, false)) break;
+          }
+        },
+        query: query
+      };
+    }
+    var highlightTimeout = 0;
+    function highlightSearchMatches(cm, query) {
+      clearTimeout(highlightTimeout);
+      highlightTimeout = setTimeout(function() {
+        if (!cm.state.vim) return;
+        var searchState = getSearchState(cm);
+        var overlay = searchState.getOverlay();
+        if (!overlay || query != overlay.query) {
+          if (overlay) {
+            cm.removeOverlay(overlay);
+          }
+          overlay = searchOverlay(query);
+          cm.addOverlay(overlay);
+          if (cm.showMatchesOnScrollbar) {
+            if (searchState.getScrollbarAnnotate()) {
+              searchState.getScrollbarAnnotate().clear();
+            }
+            searchState.setScrollbarAnnotate(cm.showMatchesOnScrollbar(query));
+          }
+          searchState.setOverlay(overlay);
+        }
+      }, 50);
+    }
+    function findNext(cm, prev, query, repeat) {
+      if (repeat === undefined) { repeat = 1; }
+      return cm.operation(function() {
+        var pos = cm.getCursor();
+        var cursor = cm.getSearchCursor(query, pos);
+        for (var i = 0; i < repeat; i++) {
+          var found = cursor.find(prev);
+          if (i == 0 && found && cursorEqual(cursor.from(), pos)) {
+            var lastEndPos = prev ? cursor.from() : cursor.to();
+            found = cursor.find(prev);
+            if (found && !found[0] && cursorEqual(cursor.from(), lastEndPos)) {
+              if (cm.getLine(lastEndPos.line).length == lastEndPos.ch)
+                found = cursor.find(prev);
+            }
+          }
+          if (!found) {
+            // SearchCursor may have returned null because it hit EOF, wrap
+            // around and try again.
+            cursor = cm.getSearchCursor(query,
+                (prev) ? new Pos(cm.lastLine()) : new Pos(cm.firstLine(), 0) );
+            if (!cursor.find(prev)) {
+              return;
+            }
+          }
+        }
+        return cursor.from();
+      });
+    }
+    /**
+     * Pretty much the same as `findNext`, except for the following differences:
+     *
+     * 1. Before starting the search, move to the previous search. This way if our cursor is
+     * already inside a match, we should return the current match.
+     * 2. Rather than only returning the cursor's from, we return the cursor's from and to as a tuple.
+     */
+    function findNextFromAndToInclusive(cm, prev, query, repeat, vim) {
+      if (repeat === undefined) { repeat = 1; }
+      return cm.operation(function() {
+        var pos = cm.getCursor();
+        var cursor = cm.getSearchCursor(query, pos);
+
+        // Go back one result to ensure that if the cursor is currently a match, we keep it.
+        var found = cursor.find(!prev);
+
+        // If we haven't moved, go back one more (similar to if i==0 logic in findNext).
+        if (!vim.visualMode && found && cursorEqual(cursor.from(), pos)) {
+          cursor.find(!prev);
+        }
+
+        for (var i = 0; i < repeat; i++) {
+          found = cursor.find(prev);
+          if (!found) {
+            // SearchCursor may have returned null because it hit EOF, wrap
+            // around and try again.
+            cursor = cm.getSearchCursor(query,
+                (prev) ? new Pos(cm.lastLine()) : new Pos(cm.firstLine(), 0) );
+            if (!cursor.find(prev)) {
+              return;
+            }
+          }
+        }
+        return [cursor.from(), cursor.to()];
+      });
+    }
+    function clearSearchHighlight(cm) {
+      var state = getSearchState(cm);
+      cm.removeOverlay(getSearchState(cm).getOverlay());
+      state.setOverlay(null);
+      if (state.getScrollbarAnnotate()) {
+        state.getScrollbarAnnotate().clear();
+        state.setScrollbarAnnotate(null);
+      }
+    }
+    /**
+     * Check if pos is in the specified range, INCLUSIVE.
+     * Range can be specified with 1 or 2 arguments.
+     * If the first range argument is an array, treat it as an array of line
+     * numbers. Match pos against any of the lines.
+     * If the first range argument is a number,
+     *   if there is only 1 range argument, check if pos has the same line
+     *       number
+     *   if there are 2 range arguments, then check if pos is in between the two
+     *       range arguments.
+     */
+    function isInRange(pos, start, end) {
+      if (typeof pos != 'number') {
+        // Assume it is a cursor position. Get the line number.
+        pos = pos.line;
+      }
+      if (start instanceof Array) {
+        return inArray(pos, start);
+      } else {
+        if (typeof end == 'number') {
+          return (pos >= start && pos <= end);
+        } else {
+          return pos == start;
+        }
+      }
+    }
+    function getUserVisibleLines(cm) {
+      var scrollInfo = cm.getScrollInfo();
+      var occludeToleranceTop = 6;
+      var occludeToleranceBottom = 10;
+      var from = cm.coordsChar({left:0, top: occludeToleranceTop + scrollInfo.top}, 'local');
+      var bottomY = scrollInfo.clientHeight - occludeToleranceBottom + scrollInfo.top;
+      var to = cm.coordsChar({left:0, top: bottomY}, 'local');
+      return {top: from.line, bottom: to.line};
+    }
+
+    function getMarkPos(cm, vim, markName) {
+      if (markName == '\'' || markName == '`') {
+        return vimGlobalState.jumpList.find(cm, -1) || new Pos(0, 0);
+      } else if (markName == '.') {
+        return getLastEditPos(cm);
+      }
+
+      var mark = vim.marks[markName];
+      return mark && mark.find();
+    }
+
+    function getLastEditPos(cm) {
+      var done = cm.doc.history.done;
+      for (var i = done.length; i--;) {
+        if (done[i].changes) {
+          return copyCursor(done[i].changes[0].to);
+        }
+      }
+    }
+
+    var ExCommandDispatcher = function() {
+      this.buildCommandMap_();
+    };
+    ExCommandDispatcher.prototype = {
+      processCommand: function(cm, input, opt_params) {
+        var that = this;
+        cm.operation(function () {
+          cm.curOp.isVimOp = true;
+          that._processCommand(cm, input, opt_params);
+        });
+      },
+      _processCommand: function(cm, input, opt_params) {
+        var vim = cm.state.vim;
+        var commandHistoryRegister = vimGlobalState.registerController.getRegister(':');
+        var previousCommand = commandHistoryRegister.toString();
+        if (vim.visualMode) {
+          exitVisualMode(cm);
+        }
+        var inputStream = new CodeMirror.StringStream(input);
+        // update ": with the latest command whether valid or invalid
+        commandHistoryRegister.setText(input);
+        var params = opt_params || {};
+        params.input = input;
+        try {
+          this.parseInput_(cm, inputStream, params);
+        } catch(e) {
+          showConfirm(cm, e.toString());
+          throw e;
+        }
+        var command;
+        var commandName;
+        if (!params.commandName) {
+          // If only a line range is defined, move to the line.
+          if (params.line !== undefined) {
+            commandName = 'move';
+          }
+        } else {
+          command = this.matchCommand_(params.commandName);
+          if (command) {
+            commandName = command.name;
+            if (command.excludeFromCommandHistory) {
+              commandHistoryRegister.setText(previousCommand);
+            }
+            this.parseCommandArgs_(inputStream, params, command);
+            if (command.type == 'exToKey') {
+              // Handle Ex to Key mapping.
+              for (var i = 0; i < command.toKeys.length; i++) {
+                vimApi.handleKey(cm, command.toKeys[i], 'mapping');
+              }
+              return;
+            } else if (command.type == 'exToEx') {
+              // Handle Ex to Ex mapping.
+              this.processCommand(cm, command.toInput);
+              return;
+            }
+          }
+        }
+        if (!commandName) {
+          showConfirm(cm, 'Not an editor command ":' + input + '"');
+          return;
+        }
+        try {
+          exCommands[commandName](cm, params);
+          // Possibly asynchronous commands (e.g. substitute, which might have a
+          // user confirmation), are responsible for calling the callback when
+          // done. All others have it taken care of for them here.
+          if ((!command || !command.possiblyAsync) && params.callback) {
+            params.callback();
+          }
+        } catch(e) {
+          showConfirm(cm, e.toString());
+          throw e;
+        }
+      },
+      parseInput_: function(cm, inputStream, result) {
+        inputStream.eatWhile(':');
+        // Parse range.
+        if (inputStream.eat('%')) {
+          result.line = cm.firstLine();
+          result.lineEnd = cm.lastLine();
+        } else {
+          result.line = this.parseLineSpec_(cm, inputStream);
+          if (result.line !== undefined && inputStream.eat(',')) {
+            result.lineEnd = this.parseLineSpec_(cm, inputStream);
+          }
+        }
+
+        // Parse command name.
+        var commandMatch = inputStream.match(/^(\w+|!!|@@|[!#&*<=>@~])/);
+        if (commandMatch) {
+          result.commandName = commandMatch[1];
+        } else {
+          result.commandName = inputStream.match(/.*/)[0];
+        }
+
+        return result;
+      },
+      parseLineSpec_: function(cm, inputStream) {
+        var numberMatch = inputStream.match(/^(\d+)/);
+        if (numberMatch) {
+          // Absolute line number plus offset (N+M or N-M) is probably a typo,
+          // not something the user actually wanted. (NB: vim does allow this.)
+          return parseInt(numberMatch[1], 10) - 1;
+        }
+        switch (inputStream.next()) {
+          case '.':
+            return this.parseLineSpecOffset_(inputStream, cm.getCursor().line);
+          case '$':
+            return this.parseLineSpecOffset_(inputStream, cm.lastLine());
+          case '\'':
+            var markName = inputStream.next();
+            var markPos = getMarkPos(cm, cm.state.vim, markName);
+            if (!markPos) throw new Error('Mark not set');
+            return this.parseLineSpecOffset_(inputStream, markPos.line);
+          case '-':
+          case '+':
+            inputStream.backUp(1);
+            // Offset is relative to current line if not otherwise specified.
+            return this.parseLineSpecOffset_(inputStream, cm.getCursor().line);
+          default:
+            inputStream.backUp(1);
+            return undefined;
+        }
+      },
+      parseLineSpecOffset_: function(inputStream, line) {
+        var offsetMatch = inputStream.match(/^([+-])?(\d+)/);
+        if (offsetMatch) {
+          var offset = parseInt(offsetMatch[2], 10);
+          if (offsetMatch[1] == "-") {
+            line -= offset;
+          } else {
+            line += offset;
+          }
+        }
+        return line;
+      },
+      parseCommandArgs_: function(inputStream, params, command) {
+        if (inputStream.eol()) {
+          return;
+        }
+        params.argString = inputStream.match(/.*/)[0];
+        // Parse command-line arguments
+        var delim = command.argDelimiter || /\s+/;
+        var args = trim(params.argString).split(delim);
+        if (args.length && args[0]) {
+          params.args = args;
+        }
+      },
+      matchCommand_: function(commandName) {
+        // Return the command in the command map that matches the shortest
+        // prefix of the passed in command name. The match is guaranteed to be
+        // unambiguous if the defaultExCommandMap's shortNames are set up
+        // correctly. (see @code{defaultExCommandMap}).
+        for (var i = commandName.length; i > 0; i--) {
+          var prefix = commandName.substring(0, i);
+          if (this.commandMap_[prefix]) {
+            var command = this.commandMap_[prefix];
+            if (command.name.indexOf(commandName) === 0) {
+              return command;
+            }
+          }
+        }
+        return null;
+      },
+      buildCommandMap_: function() {
+        this.commandMap_ = {};
+        for (var i = 0; i < defaultExCommandMap.length; i++) {
+          var command = defaultExCommandMap[i];
+          var key = command.shortName || command.name;
+          this.commandMap_[key] = command;
+        }
+      },
+      map: function(lhs, rhs, ctx) {
+        if (lhs != ':' && lhs.charAt(0) == ':') {
+          if (ctx) { throw Error('Mode not supported for ex mappings'); }
+          var commandName = lhs.substring(1);
+          if (rhs != ':' && rhs.charAt(0) == ':') {
+            // Ex to Ex mapping
+            this.commandMap_[commandName] = {
+              name: commandName,
+              type: 'exToEx',
+              toInput: rhs.substring(1),
+              user: true
+            };
+          } else {
+            // Ex to key mapping
+            this.commandMap_[commandName] = {
+              name: commandName,
+              type: 'exToKey',
+              toKeys: rhs,
+              user: true
+            };
+          }
+        } else {
+          if (rhs != ':' && rhs.charAt(0) == ':') {
+            // Key to Ex mapping.
+            var mapping = {
+              keys: lhs,
+              type: 'keyToEx',
+              exArgs: { input: rhs.substring(1) }
+            };
+            if (ctx) { mapping.context = ctx; }
+            defaultKeymap.unshift(mapping);
+          } else {
+            // Key to key mapping
+            var mapping = {
+              keys: lhs,
+              type: 'keyToKey',
+              toKeys: rhs
+            };
+            if (ctx) { mapping.context = ctx; }
+            defaultKeymap.unshift(mapping);
+          }
+        }
+      },
+      unmap: function(lhs, ctx) {
+        if (lhs != ':' && lhs.charAt(0) == ':') {
+          // Ex to Ex or Ex to key mapping
+          if (ctx) { throw Error('Mode not supported for ex mappings'); }
+          var commandName = lhs.substring(1);
+          if (this.commandMap_[commandName] && this.commandMap_[commandName].user) {
+            delete this.commandMap_[commandName];
+            return true;
+          }
+        } else {
+          // Key to Ex or key to key mapping
+          var keys = lhs;
+          for (var i = 0; i < defaultKeymap.length; i++) {
+            if (keys == defaultKeymap[i].keys
+                && defaultKeymap[i].context === ctx) {
+              defaultKeymap.splice(i, 1);
+              return true;
+            }
+          }
+        }
+      }
+    };
+
+    var exCommands = {
+      colorscheme: function(cm, params) {
+        if (!params.args || params.args.length < 1) {
+          showConfirm(cm, cm.getOption('theme'));
+          return;
+        }
+        cm.setOption('theme', params.args[0]);
+      },
+      map: function(cm, params, ctx) {
+        var mapArgs = params.args;
+        if (!mapArgs || mapArgs.length < 2) {
+          if (cm) {
+            showConfirm(cm, 'Invalid mapping: ' + params.input);
+          }
+          return;
+        }
+        exCommandDispatcher.map(mapArgs[0], mapArgs[1], ctx);
+      },
+      imap: function(cm, params) { this.map(cm, params, 'insert'); },
+      nmap: function(cm, params) { this.map(cm, params, 'normal'); },
+      vmap: function(cm, params) { this.map(cm, params, 'visual'); },
+      unmap: function(cm, params, ctx) {
+        var mapArgs = params.args;
+        if (!mapArgs || mapArgs.length < 1 || !exCommandDispatcher.unmap(mapArgs[0], ctx)) {
+          if (cm) {
+            showConfirm(cm, 'No such mapping: ' + params.input);
+          }
+        }
+      },
+      move: function(cm, params) {
+        commandDispatcher.processCommand(cm, cm.state.vim, {
+            type: 'motion',
+            motion: 'moveToLineOrEdgeOfDocument',
+            motionArgs: { forward: false, explicitRepeat: true,
+              linewise: true },
+            repeatOverride: params.line+1});
+      },
+      set: function(cm, params) {
+        var setArgs = params.args;
+        // Options passed through to the setOption/getOption calls. May be passed in by the
+        // local/global versions of the set command
+        var setCfg = params.setCfg || {};
+        if (!setArgs || setArgs.length < 1) {
+          if (cm) {
+            showConfirm(cm, 'Invalid mapping: ' + params.input);
+          }
+          return;
+        }
+        var expr = setArgs[0].split('=');
+        var optionName = expr[0];
+        var value = expr[1];
+        var forceGet = false;
+
+        if (optionName.charAt(optionName.length - 1) == '?') {
+          // If post-fixed with ?, then the set is actually a get.
+          if (value) { throw Error('Trailing characters: ' + params.argString); }
+          optionName = optionName.substring(0, optionName.length - 1);
+          forceGet = true;
+        }
+        if (value === undefined && optionName.substring(0, 2) == 'no') {
+          // To set boolean options to false, the option name is prefixed with
+          // 'no'.
+          optionName = optionName.substring(2);
+          value = false;
+        }
+
+        var optionIsBoolean = options[optionName] && options[optionName].type == 'boolean';
+        if (optionIsBoolean && value == undefined) {
+          // Calling set with a boolean option sets it to true.
+          value = true;
+        }
+        // If no value is provided, then we assume this is a get.
+        if (!optionIsBoolean && value === undefined || forceGet) {
+          var oldValue = getOption(optionName, cm, setCfg);
+          if (oldValue instanceof Error) {
+            showConfirm(cm, oldValue.message);
+          } else if (oldValue === true || oldValue === false) {
+            showConfirm(cm, ' ' + (oldValue ? '' : 'no') + optionName);
+          } else {
+            showConfirm(cm, '  ' + optionName + '=' + oldValue);
+          }
+        } else {
+          var setOptionReturn = setOption(optionName, value, cm, setCfg);
+          if (setOptionReturn instanceof Error) {
+            showConfirm(cm, setOptionReturn.message);
+          }
+        }
+      },
+      setlocal: function (cm, params) {
+        // setCfg is passed through to setOption
+        params.setCfg = {scope: 'local'};
+        this.set(cm, params);
+      },
+      setglobal: function (cm, params) {
+        // setCfg is passed through to setOption
+        params.setCfg = {scope: 'global'};
+        this.set(cm, params);
+      },
+      registers: function(cm, params) {
+        var regArgs = params.args;
+        var registers = vimGlobalState.registerController.registers;
+        var regInfo = '----------Registers----------\n\n';
+        if (!regArgs) {
+          for (var registerName in registers) {
+            var text = registers[registerName].toString();
+            if (text.length) {
+              regInfo += '"' + registerName + '    ' + text + '\n';
+            }
+          }
+        } else {
+          var registerName;
+          regArgs = regArgs.join('');
+          for (var i = 0; i < regArgs.length; i++) {
+            registerName = regArgs.charAt(i);
+            if (!vimGlobalState.registerController.isValidRegister(registerName)) {
+              continue;
+            }
+            var register = registers[registerName] || new Register();
+            regInfo += '"' + registerName + '    ' + register.toString() + '\n';
+          }
+        }
+        showConfirm(cm, regInfo);
+      },
+      sort: function(cm, params) {
+        var reverse, ignoreCase, unique, number, pattern;
+        function parseArgs() {
+          if (params.argString) {
+            var args = new CodeMirror.StringStream(params.argString);
+            if (args.eat('!')) { reverse = true; }
+            if (args.eol()) { return; }
+            if (!args.eatSpace()) { return 'Invalid arguments'; }
+            var opts = args.match(/([dinuox]+)?\s*(\/.+\/)?\s*/);
+            if (!opts && !args.eol()) { return 'Invalid arguments'; }
+            if (opts[1]) {
+              ignoreCase = opts[1].indexOf('i') != -1;
+              unique = opts[1].indexOf('u') != -1;
+              var decimal = opts[1].indexOf('d') != -1 || opts[1].indexOf('n') != -1 && 1;
+              var hex = opts[1].indexOf('x') != -1 && 1;
+              var octal = opts[1].indexOf('o') != -1 && 1;
+              if (decimal + hex + octal > 1) { return 'Invalid arguments'; }
+              number = decimal && 'decimal' || hex && 'hex' || octal && 'octal';
+            }
+            if (opts[2]) {
+              pattern = new RegExp(opts[2].substr(1, opts[2].length - 2), ignoreCase ? 'i' : '');
+            }
+          }
+        }
+        var err = parseArgs();
+        if (err) {
+          showConfirm(cm, err + ': ' + params.argString);
+          return;
+        }
+        var lineStart = params.line || cm.firstLine();
+        var lineEnd = params.lineEnd || params.line || cm.lastLine();
+        if (lineStart == lineEnd) { return; }
+        var curStart = new Pos(lineStart, 0);
+        var curEnd = new Pos(lineEnd, lineLength(cm, lineEnd));
+        var text = cm.getRange(curStart, curEnd).split('\n');
+        var numberRegex = pattern ? pattern :
+           (number == 'decimal') ? /(-?)([\d]+)/ :
+           (number == 'hex') ? /(-?)(?:0x)?([0-9a-f]+)/i :
+           (number == 'octal') ? /([0-7]+)/ : null;
+        var radix = (number == 'decimal') ? 10 : (number == 'hex') ? 16 : (number == 'octal') ? 8 : null;
+        var numPart = [], textPart = [];
+        if (number || pattern) {
+          for (var i = 0; i < text.length; i++) {
+            var matchPart = pattern ? text[i].match(pattern) : null;
+            if (matchPart && matchPart[0] != '') {
+              numPart.push(matchPart);
+            } else if (!pattern && numberRegex.exec(text[i])) {
+              numPart.push(text[i]);
+            } else {
+              textPart.push(text[i]);
+            }
+          }
+        } else {
+          textPart = text;
+        }
+        function compareFn(a, b) {
+          if (reverse) { var tmp; tmp = a; a = b; b = tmp; }
+          if (ignoreCase) { a = a.toLowerCase(); b = b.toLowerCase(); }
+          var anum = number && numberRegex.exec(a);
+          var bnum = number && numberRegex.exec(b);
+          if (!anum) { return a < b ? -1 : 1; }
+          anum = parseInt((anum[1] + anum[2]).toLowerCase(), radix);
+          bnum = parseInt((bnum[1] + bnum[2]).toLowerCase(), radix);
+          return anum - bnum;
+        }
+        function comparePatternFn(a, b) {
+          if (reverse) { var tmp; tmp = a; a = b; b = tmp; }
+          if (ignoreCase) { a[0] = a[0].toLowerCase(); b[0] = b[0].toLowerCase(); }
+          return (a[0] < b[0]) ? -1 : 1;
+        }
+        numPart.sort(pattern ? comparePatternFn : compareFn);
+        if (pattern) {
+          for (var i = 0; i < numPart.length; i++) {
+            numPart[i] = numPart[i].input;
+          }
+        } else if (!number) { textPart.sort(compareFn); }
+        text = (!reverse) ? textPart.concat(numPart) : numPart.concat(textPart);
+        if (unique) { // Remove duplicate lines
+          var textOld = text;
+          var lastLine;
+          text = [];
+          for (var i = 0; i < textOld.length; i++) {
+            if (textOld[i] != lastLine) {
+              text.push(textOld[i]);
+            }
+            lastLine = textOld[i];
+          }
+        }
+        cm.replaceRange(text.join('\n'), curStart, curEnd);
+      },
+      vglobal: function(cm, params) {
+        // global inspects params.commandName
+        this.global(cm, params);
+      },
+      global: function(cm, params) {
+        // a global command is of the form
+        // :[range]g/pattern/[cmd]
+        // argString holds the string /pattern/[cmd]
+        var argString = params.argString;
+        if (!argString) {
+          showConfirm(cm, 'Regular Expression missing from global');
+          return;
+        }
+        var inverted = params.commandName[0] === 'v';
+        // range is specified here
+        var lineStart = (params.line !== undefined) ? params.line : cm.firstLine();
+        var lineEnd = params.lineEnd || params.line || cm.lastLine();
+        // get the tokens from argString
+        var tokens = splitBySlash(argString);
+        var regexPart = argString, cmd;
+        if (tokens.length) {
+          regexPart = tokens[0];
+          cmd = tokens.slice(1, tokens.length).join('/');
+        }
+        if (regexPart) {
+          // If regex part is empty, then use the previous query. Otherwise
+          // use the regex part as the new query.
+          try {
+           updateSearchQuery(cm, regexPart, true /** ignoreCase */,
+             true /** smartCase */);
+          } catch (e) {
+           showConfirm(cm, 'Invalid regex: ' + regexPart);
+           return;
+          }
+        }
+        // now that we have the regexPart, search for regex matches in the
+        // specified range of lines
+        var query = getSearchState(cm).getQuery();
+        var matchedLines = [];
+        for (var i = lineStart; i <= lineEnd; i++) {
+          var line = cm.getLineHandle(i);
+          var matched = query.test(line.text);
+          if (matched !== inverted) {
+            matchedLines.push(cmd ? line : line.text);
+          }
+        }
+        // if there is no [cmd], just display the list of matched lines
+        if (!cmd) {
+          showConfirm(cm, matchedLines.join('\n'));
+          return;
+        }
+        var index = 0;
+        var nextCommand = function() {
+          if (index < matchedLines.length) {
+            var line = matchedLines[index++];
+            var lineNum = cm.getLineNumber(line);
+            if (lineNum == null) {
+              nextCommand();
+              return;
+            }
+            var command = (lineNum + 1) + cmd;
+            exCommandDispatcher.processCommand(cm, command, {
+              callback: nextCommand
+            });
+          }
+        };
+        nextCommand();
+      },
+      substitute: function(cm, params) {
+        if (!cm.getSearchCursor) {
+          throw new Error('Search feature not available. Requires searchcursor.js or ' +
+              'any other getSearchCursor implementation.');
+        }
+        var argString = params.argString;
+        var tokens = argString ? splitBySeparator(argString, argString[0]) : [];
+        var regexPart, replacePart = '', trailing, flagsPart, count;
+        var confirm = false; // Whether to confirm each replace.
+        var global = false; // True to replace all instances on a line, false to replace only 1.
+        if (tokens.length) {
+          regexPart = tokens[0];
+          if (getOption('pcre') && regexPart !== '') {
+              regexPart = new RegExp(regexPart).source; //normalize not escaped characters
+          }
+          replacePart = tokens[1];
+          if (replacePart !== undefined) {
+            if (getOption('pcre')) {
+              replacePart = unescapeRegexReplace(replacePart.replace(/([^\\])&/g,"$1$$&"));
+            } else {
+              replacePart = translateRegexReplace(replacePart);
+            }
+            vimGlobalState.lastSubstituteReplacePart = replacePart;
+          }
+          trailing = tokens[2] ? tokens[2].split(' ') : [];
+        } else {
+          // either the argString is empty or its of the form ' hello/world'
+          // actually splitBySlash returns a list of tokens
+          // only if the string starts with a '/'
+          if (argString && argString.length) {
+            showConfirm(cm, 'Substitutions should be of the form ' +
+                ':s/pattern/replace/');
+            return;
+          }
+        }
+        // After the 3rd slash, we can have flags followed by a space followed
+        // by count.
+        if (trailing) {
+          flagsPart = trailing[0];
+          count = parseInt(trailing[1]);
+          if (flagsPart) {
+            if (flagsPart.indexOf('c') != -1) {
+              confirm = true;
+            }
+            if (flagsPart.indexOf('g') != -1) {
+              global = true;
+            }
+            if (getOption('pcre')) {
+               regexPart = regexPart + '/' + flagsPart;
+            } else {
+               regexPart = regexPart.replace(/\//g, "\\/") + '/' + flagsPart;
+            }
+          }
+        }
+        if (regexPart) {
+          // If regex part is empty, then use the previous query. Otherwise use
+          // the regex part as the new query.
+          try {
+            updateSearchQuery(cm, regexPart, true /** ignoreCase */,
+              true /** smartCase */);
+          } catch (e) {
+            showConfirm(cm, 'Invalid regex: ' + regexPart);
+            return;
+          }
+        }
+        replacePart = replacePart || vimGlobalState.lastSubstituteReplacePart;
+        if (replacePart === undefined) {
+          showConfirm(cm, 'No previous substitute regular expression');
+          return;
+        }
+        var state = getSearchState(cm);
+        var query = state.getQuery();
+        var lineStart = (params.line !== undefined) ? params.line : cm.getCursor().line;
+        var lineEnd = params.lineEnd || lineStart;
+        if (lineStart == cm.firstLine() && lineEnd == cm.lastLine()) {
+          lineEnd = Infinity;
+        }
+        if (count) {
+          lineStart = lineEnd;
+          lineEnd = lineStart + count - 1;
+        }
+        var startPos = clipCursorToContent(cm, new Pos(lineStart, 0));
+        var cursor = cm.getSearchCursor(query, startPos);
+        doReplace(cm, confirm, global, lineStart, lineEnd, cursor, query, replacePart, params.callback);
+      },
+      redo: CodeMirror.commands.redo,
+      undo: CodeMirror.commands.undo,
+      write: function(cm) {
+        if (CodeMirror.commands.save) {
+          // If a save command is defined, call it.
+          CodeMirror.commands.save(cm);
+        } else if (cm.save) {
+          // Saves to text area if no save command is defined and cm.save() is available.
+          cm.save();
+        }
+      },
+      nohlsearch: function(cm) {
+        clearSearchHighlight(cm);
+      },
+      yank: function (cm) {
+        var cur = copyCursor(cm.getCursor());
+        var line = cur.line;
+        var lineText = cm.getLine(line);
+        vimGlobalState.registerController.pushText(
+          '0', 'yank', lineText, true, true);
+      },
+      delmarks: function(cm, params) {
+        if (!params.argString || !trim(params.argString)) {
+          showConfirm(cm, 'Argument required');
+          return;
+        }
+
+        var state = cm.state.vim;
+        var stream = new CodeMirror.StringStream(trim(params.argString));
+        while (!stream.eol()) {
+          stream.eatSpace();
+
+          // Record the streams position at the beginning of the loop for use
+          // in error messages.
+          var count = stream.pos;
+
+          if (!stream.match(/[a-zA-Z]/, false)) {
+            showConfirm(cm, 'Invalid argument: ' + params.argString.substring(count));
+            return;
+          }
+
+          var sym = stream.next();
+          // Check if this symbol is part of a range
+          if (stream.match('-', true)) {
+            // This symbol is part of a range.
+
+            // The range must terminate at an alphabetic character.
+            if (!stream.match(/[a-zA-Z]/, false)) {
+              showConfirm(cm, 'Invalid argument: ' + params.argString.substring(count));
+              return;
+            }
+
+            var startMark = sym;
+            var finishMark = stream.next();
+            // The range must terminate at an alphabetic character which
+            // shares the same case as the start of the range.
+            if (isLowerCase(startMark) && isLowerCase(finishMark) ||
+                isUpperCase(startMark) && isUpperCase(finishMark)) {
+              var start = startMark.charCodeAt(0);
+              var finish = finishMark.charCodeAt(0);
+              if (start >= finish) {
+                showConfirm(cm, 'Invalid argument: ' + params.argString.substring(count));
+                return;
+              }
+
+              // Because marks are always ASCII values, and we have
+              // determined that they are the same case, we can use
+              // their char codes to iterate through the defined range.
+              for (var j = 0; j <= finish - start; j++) {
+                var mark = String.fromCharCode(start + j);
+                delete state.marks[mark];
+              }
+            } else {
+              showConfirm(cm, 'Invalid argument: ' + startMark + '-');
+              return;
+            }
+          } else {
+            // This symbol is a valid mark, and is not part of a range.
+            delete state.marks[sym];
+          }
+        }
+      }
+    };
+
+    var exCommandDispatcher = new ExCommandDispatcher();
+
+    /**
+    * @param {CodeMirror} cm CodeMirror instance we are in.
+    * @param {boolean} confirm Whether to confirm each replace.
+    * @param {Cursor} lineStart Line to start replacing from.
+    * @param {Cursor} lineEnd Line to stop replacing at.
+    * @param {RegExp} query Query for performing matches with.
+    * @param {string} replaceWith Text to replace matches with. May contain $1,
+    *     $2, etc for replacing captured groups using JavaScript replace.
+    * @param {function()} callback A callback for when the replace is done.
+    */
+    function doReplace(cm, confirm, global, lineStart, lineEnd, searchCursor, query,
+        replaceWith, callback) {
+      // Set up all the functions.
+      cm.state.vim.exMode = true;
+      var done = false;
+      var lastPos, modifiedLineNumber, joined;
+      function replaceAll() {
+        cm.operation(function() {
+          while (!done) {
+            replace();
+            next();
+          }
+          stop();
+        });
+      }
+      function replace() {
+        var text = cm.getRange(searchCursor.from(), searchCursor.to());
+        var newText = text.replace(query, replaceWith);
+        var unmodifiedLineNumber = searchCursor.to().line;
+        searchCursor.replace(newText);
+        modifiedLineNumber = searchCursor.to().line;
+        lineEnd += modifiedLineNumber - unmodifiedLineNumber;
+        joined = modifiedLineNumber < unmodifiedLineNumber;
+      }
+      function findNextValidMatch() {
+        var lastMatchTo = lastPos && copyCursor(searchCursor.to());
+        var match = searchCursor.findNext();
+        if (match && !match[0] && lastMatchTo && cursorEqual(searchCursor.from(), lastMatchTo)) {
+          match = searchCursor.findNext();
+        }
+        return match;
+      }
+      function next() {
+        // The below only loops to skip over multiple occurrences on the same
+        // line when 'global' is not true.
+        while(findNextValidMatch() &&
+              isInRange(searchCursor.from(), lineStart, lineEnd)) {
+          if (!global && searchCursor.from().line == modifiedLineNumber && !joined) {
+            continue;
+          }
+          cm.scrollIntoView(searchCursor.from(), 30);
+          cm.setSelection(searchCursor.from(), searchCursor.to());
+          lastPos = searchCursor.from();
+          done = false;
+          return;
+        }
+        done = true;
+      }
+      function stop(close) {
+        if (close) { close(); }
+        cm.focus();
+        if (lastPos) {
+          cm.setCursor(lastPos);
+          var vim = cm.state.vim;
+          vim.exMode = false;
+          vim.lastHPos = vim.lastHSPos = lastPos.ch;
+        }
+        if (callback) { callback(); }
+      }
+      function onPromptKeyDown(e, _value, close) {
+        // Swallow all keys.
+        CodeMirror.e_stop(e);
+        var keyName = CodeMirror.keyName(e);
+        switch (keyName) {
+          case 'Y':
+            replace(); next(); break;
+          case 'N':
+            next(); break;
+          case 'A':
+            // replaceAll contains a call to close of its own. We don't want it
+            // to fire too early or multiple times.
+            var savedCallback = callback;
+            callback = undefined;
+            cm.operation(replaceAll);
+            callback = savedCallback;
+            break;
+          case 'L':
+            replace();
+            // fall through and exit.
+          case 'Q':
+          case 'Esc':
+          case 'Ctrl-C':
+          case 'Ctrl-[':
+            stop(close);
+            break;
+        }
+        if (done) { stop(close); }
+        return true;
+      }
+
+      // Actually do replace.
+      next();
+      if (done) {
+        showConfirm(cm, 'No matches for ' + query.source);
+        return;
+      }
+      if (!confirm) {
+        replaceAll();
+        if (callback) { callback(); }
+        return;
+      }
+      showPrompt(cm, {
+        prefix: dom('span', 'replace with ', dom('strong', replaceWith), ' (y/n/a/q/l)'),
+        onKeyDown: onPromptKeyDown
+      });
+    }
+
+    CodeMirror.keyMap.vim = {
+      attach: attachVimMap,
+      detach: detachVimMap,
+      call: cmKey
+    };
+
+    function exitInsertMode(cm) {
+      var vim = cm.state.vim;
+      var macroModeState = vimGlobalState.macroModeState;
+      var insertModeChangeRegister = vimGlobalState.registerController.getRegister('.');
+      var isPlaying = macroModeState.isPlaying;
+      var lastChange = macroModeState.lastInsertModeChanges;
+      if (!isPlaying) {
+        cm.off('change', onChange);
+        CodeMirror.off(cm.getInputField(), 'keydown', onKeyEventTargetKeyDown);
+      }
+      if (!isPlaying && vim.insertModeRepeat > 1) {
+        // Perform insert mode repeat for commands like 3,a and 3,o.
+        repeatLastEdit(cm, vim, vim.insertModeRepeat - 1,
+            true /** repeatForInsert */);
+        vim.lastEditInputState.repeatOverride = vim.insertModeRepeat;
+      }
+      delete vim.insertModeRepeat;
+      vim.insertMode = false;
+      cm.setCursor(cm.getCursor().line, cm.getCursor().ch-1);
+      cm.setOption('keyMap', 'vim');
+      cm.setOption('disableInput', true);
+      cm.toggleOverwrite(false); // exit replace mode if we were in it.
+      // update the ". register before exiting insert mode
+      insertModeChangeRegister.setText(lastChange.changes.join(''));
+      CodeMirror.signal(cm, "vim-mode-change", {mode: "normal"});
+      if (macroModeState.isRecording) {
+        logInsertModeChange(macroModeState);
+      }
+    }
+
+    function _mapCommand(command) {
+      defaultKeymap.unshift(command);
+    }
+
+    function mapCommand(keys, type, name, args, extra) {
+      var command = {keys: keys, type: type};
+      command[type] = name;
+      command[type + "Args"] = args;
+      for (var key in extra)
+        command[key] = extra[key];
+      _mapCommand(command);
+    }
+
+    // The timeout in milliseconds for the two-character ESC keymap should be
+    // adjusted according to your typing speed to prevent false positives.
+    defineOption('insertModeEscKeysTimeout', 200, 'number');
+
+    CodeMirror.keyMap['vim-insert'] = {
+      // TODO: override navigation keys so that Esc will cancel automatic
+      // indentation from o, O, i_<CR>
+      fallthrough: ['default'],
+      attach: attachVimMap,
+      detach: detachVimMap,
+      call: cmKey
+    };
+
+    CodeMirror.keyMap['vim-replace'] = {
+      'Backspace': 'goCharLeft',
+      fallthrough: ['vim-insert'],
+      attach: attachVimMap,
+      detach: detachVimMap,
+      call: cmKey
+    };
+
+    function executeMacroRegister(cm, vim, macroModeState, registerName) {
+      var register = vimGlobalState.registerController.getRegister(registerName);
+      if (registerName == ':') {
+        // Read-only register containing last Ex command.
+        if (register.keyBuffer[0]) {
+          exCommandDispatcher.processCommand(cm, register.keyBuffer[0]);
+        }
+        macroModeState.isPlaying = false;
+        return;
+      }
+      var keyBuffer = register.keyBuffer;
+      var imc = 0;
+      macroModeState.isPlaying = true;
+      macroModeState.replaySearchQueries = register.searchQueries.slice(0);
+      for (var i = 0; i < keyBuffer.length; i++) {
+        var text = keyBuffer[i];
+        var match, key;
+        while (text) {
+          // Pull off one command key, which is either a single character
+          // or a special sequence wrapped in '<' and '>', e.g. '<Space>'.
+          match = (/<\w+-.+?>|<\w+>|./).exec(text);
+          key = match[0];
+          text = text.substring(match.index + key.length);
+          vimApi.handleKey(cm, key, 'macro');
+          if (vim.insertMode) {
+            var changes = register.insertModeChanges[imc++].changes;
+            vimGlobalState.macroModeState.lastInsertModeChanges.changes =
+                changes;
+            repeatInsertModeChanges(cm, changes, 1);
+            exitInsertMode(cm);
+          }
+        }
+      }
+      macroModeState.isPlaying = false;
+    }
+
+    function logKey(macroModeState, key) {
+      if (macroModeState.isPlaying) { return; }
+      var registerName = macroModeState.latestRegister;
+      var register = vimGlobalState.registerController.getRegister(registerName);
+      if (register) {
+        register.pushText(key);
+      }
+    }
+
+    function logInsertModeChange(macroModeState) {
+      if (macroModeState.isPlaying) { return; }
+      var registerName = macroModeState.latestRegister;
+      var register = vimGlobalState.registerController.getRegister(registerName);
+      if (register && register.pushInsertModeChanges) {
+        register.pushInsertModeChanges(macroModeState.lastInsertModeChanges);
+      }
+    }
+
+    function logSearchQuery(macroModeState, query) {
+      if (macroModeState.isPlaying) { return; }
+      var registerName = macroModeState.latestRegister;
+      var register = vimGlobalState.registerController.getRegister(registerName);
+      if (register && register.pushSearchQuery) {
+        register.pushSearchQuery(query);
+      }
+    }
+
+    /**
+     * Listens for changes made in insert mode.
+     * Should only be active in insert mode.
+     */
+    function onChange(cm, changeObj) {
+      var macroModeState = vimGlobalState.macroModeState;
+      var lastChange = macroModeState.lastInsertModeChanges;
+      if (!macroModeState.isPlaying) {
+        while(changeObj) {
+          lastChange.expectCursorActivityForChange = true;
+          if (lastChange.ignoreCount > 1) {
+            lastChange.ignoreCount--;
+          } else if (changeObj.origin == '+input' || changeObj.origin == 'paste'
+              || changeObj.origin === undefined /* only in testing */) {
+            var selectionCount = cm.listSelections().length;
+            if (selectionCount > 1)
+              lastChange.ignoreCount = selectionCount;
+            var text = changeObj.text.join('\n');
+            if (lastChange.maybeReset) {
+              lastChange.changes = [];
+              lastChange.maybeReset = false;
+            }
+            if (text) {
+              if (cm.state.overwrite && !/\n/.test(text)) {
+                lastChange.changes.push([text]);
+              } else {
+                lastChange.changes.push(text);
+              }
+            }
+          }
+          // Change objects may be chained with next.
+          changeObj = changeObj.next;
+        }
+      }
+    }
+
+    /**
+    * Listens for any kind of cursor activity on CodeMirror.
+    */
+    function onCursorActivity(cm) {
+      var vim = cm.state.vim;
+      if (vim.insertMode) {
+        // Tracking cursor activity in insert mode (for macro support).
+        var macroModeState = vimGlobalState.macroModeState;
+        if (macroModeState.isPlaying) { return; }
+        var lastChange = macroModeState.lastInsertModeChanges;
+        if (lastChange.expectCursorActivityForChange) {
+          lastChange.expectCursorActivityForChange = false;
+        } else {
+          // Cursor moved outside the context of an edit. Reset the change.
+          lastChange.maybeReset = true;
+        }
+      } else if (!cm.curOp.isVimOp) {
+        handleExternalSelection(cm, vim);
+      }
+    }
+    function handleExternalSelection(cm, vim) {
+      var anchor = cm.getCursor('anchor');
+      var head = cm.getCursor('head');
+      // Enter or exit visual mode to match mouse selection.
+      if (vim.visualMode && !cm.somethingSelected()) {
+        exitVisualMode(cm, false);
+      } else if (!vim.visualMode && !vim.insertMode && cm.somethingSelected()) {
+        vim.visualMode = true;
+        vim.visualLine = false;
+        CodeMirror.signal(cm, "vim-mode-change", {mode: "visual"});
+      }
+      if (vim.visualMode) {
+        // Bind CodeMirror selection model to vim selection model.
+        // Mouse selections are considered visual characterwise.
+        var headOffset = !cursorIsBefore(head, anchor) ? -1 : 0;
+        var anchorOffset = cursorIsBefore(head, anchor) ? -1 : 0;
+        head = offsetCursor(head, 0, headOffset);
+        anchor = offsetCursor(anchor, 0, anchorOffset);
+        vim.sel = {
+          anchor: anchor,
+          head: head
+        };
+        updateMark(cm, vim, '<', cursorMin(head, anchor));
+        updateMark(cm, vim, '>', cursorMax(head, anchor));
+      } else if (!vim.insertMode) {
+        // Reset lastHPos if selection was modified by something outside of vim mode e.g. by mouse.
+        vim.lastHPos = cm.getCursor().ch;
+      }
+    }
+
+    /** Wrapper for special keys pressed in insert mode */
+    function InsertModeKey(keyName) {
+      this.keyName = keyName;
+    }
+
+    /**
+    * Handles raw key down events from the text area.
+    * - Should only be active in insert mode.
+    * - For recording deletes in insert mode.
+    */
+    function onKeyEventTargetKeyDown(e) {
+      var macroModeState = vimGlobalState.macroModeState;
+      var lastChange = macroModeState.lastInsertModeChanges;
+      var keyName = CodeMirror.keyName(e);
+      if (!keyName) { return; }
+      function onKeyFound() {
+        if (lastChange.maybeReset) {
+          lastChange.changes = [];
+          lastChange.maybeReset = false;
+        }
+        lastChange.changes.push(new InsertModeKey(keyName));
+        return true;
+      }
+      if (keyName.indexOf('Delete') != -1 || keyName.indexOf('Backspace') != -1) {
+        CodeMirror.lookupKey(keyName, 'vim-insert', onKeyFound);
+      }
+    }
+
+    /**
+     * Repeats the last edit, which includes exactly 1 command and at most 1
+     * insert. Operator and motion commands are read from lastEditInputState,
+     * while action commands are read from lastEditActionCommand.
+     *
+     * If repeatForInsert is true, then the function was called by
+     * exitInsertMode to repeat the insert mode changes the user just made. The
+     * corresponding enterInsertMode call was made with a count.
+     */
+    function repeatLastEdit(cm, vim, repeat, repeatForInsert) {
+      var macroModeState = vimGlobalState.macroModeState;
+      macroModeState.isPlaying = true;
+      var isAction = !!vim.lastEditActionCommand;
+      var cachedInputState = vim.inputState;
+      function repeatCommand() {
+        if (isAction) {
+          commandDispatcher.processAction(cm, vim, vim.lastEditActionCommand);
+        } else {
+          commandDispatcher.evalInput(cm, vim);
+        }
+      }
+      function repeatInsert(repeat) {
+        if (macroModeState.lastInsertModeChanges.changes.length > 0) {
+          // For some reason, repeat cw in desktop VIM does not repeat
+          // insert mode changes. Will conform to that behavior.
+          repeat = !vim.lastEditActionCommand ? 1 : repeat;
+          var changeObject = macroModeState.lastInsertModeChanges;
+          repeatInsertModeChanges(cm, changeObject.changes, repeat);
+        }
+      }
+      vim.inputState = vim.lastEditInputState;
+      if (isAction && vim.lastEditActionCommand.interlaceInsertRepeat) {
+        // o and O repeat have to be interlaced with insert repeats so that the
+        // insertions appear on separate lines instead of the last line.
+        for (var i = 0; i < repeat; i++) {
+          repeatCommand();
+          repeatInsert(1);
+        }
+      } else {
+        if (!repeatForInsert) {
+          // Hack to get the cursor to end up at the right place. If I is
+          // repeated in insert mode repeat, cursor will be 1 insert
+          // change set left of where it should be.
+          repeatCommand();
+        }
+        repeatInsert(repeat);
+      }
+      vim.inputState = cachedInputState;
+      if (vim.insertMode && !repeatForInsert) {
+        // Don't exit insert mode twice. If repeatForInsert is set, then we
+        // were called by an exitInsertMode call lower on the stack.
+        exitInsertMode(cm);
+      }
+      macroModeState.isPlaying = false;
+    }
+
+    function repeatInsertModeChanges(cm, changes, repeat) {
+      function keyHandler(binding) {
+        if (typeof binding == 'string') {
+          CodeMirror.commands[binding](cm);
+        } else {
+          binding(cm);
+        }
+        return true;
+      }
+      var head = cm.getCursor('head');
+      var visualBlock = vimGlobalState.macroModeState.lastInsertModeChanges.visualBlock;
+      if (visualBlock) {
+        // Set up block selection again for repeating the changes.
+        selectForInsert(cm, head, visualBlock + 1);
+        repeat = cm.listSelections().length;
+        cm.setCursor(head);
+      }
+      for (var i = 0; i < repeat; i++) {
+        if (visualBlock) {
+          cm.setCursor(offsetCursor(head, i, 0));
+        }
+        for (var j = 0; j < changes.length; j++) {
+          var change = changes[j];
+          if (change instanceof InsertModeKey) {
+            CodeMirror.lookupKey(change.keyName, 'vim-insert', keyHandler);
+          } else if (typeof change == "string") {
+            cm.replaceSelection(change);
+          } else {
+            var start = cm.getCursor();
+            var end = offsetCursor(start, 0, change[0].length);
+            cm.replaceRange(change[0], start, end);
+            cm.setCursor(end);
+          }
+        }
+      }
+      if (visualBlock) {
+        cm.setCursor(offsetCursor(head, 0, 1));
+      }
+    }
+
+    // multiselect support
+    function cloneVimState(state) {
+      var n = new state.constructor();
+      Object.keys(state).forEach(function(key) {
+        var o = state[key];
+        if (Array.isArray(o))
+          o = o.slice();
+        else if (o && typeof o == "object" && o.constructor != Object)
+          o = cloneVimState(o);
+        n[key] = o;
+      });
+      if (state.sel) {
+        n.sel = {
+          head: state.sel.head && copyCursor(state.sel.head),
+          anchor: state.sel.anchor && copyCursor(state.sel.anchor)
+        };
+      }
+      return n;
+    }
+    function multiSelectHandleKey(cm, key, origin) {
+      var isHandled = false;
+      var vim = vimApi.maybeInitVimState_(cm);
+      var visualBlock = vim.visualBlock || vim.wasInVisualBlock;
+
+      var wasMultiselect = cm.isInMultiSelectMode();
+      if (vim.wasInVisualBlock && !wasMultiselect) {
+        vim.wasInVisualBlock = false;
+      } else if (wasMultiselect && vim.visualBlock) {
+         vim.wasInVisualBlock = true;
+      }
+
+      if (key == '<Esc>' && !vim.insertMode && !vim.visualMode && wasMultiselect && vim.status == "<Esc>") {
+        // allow editor to exit multiselect
+        clearInputState(cm);
+      } else if (visualBlock || !wasMultiselect || cm.inVirtualSelectionMode) {
+        isHandled = vimApi.handleKey(cm, key, origin);
+      } else {
+        var old = cloneVimState(vim);
+
+        cm.operation(function() {
+          cm.curOp.isVimOp = true;
+          cm.forEachSelection(function() {
+            var head = cm.getCursor("head");
+            var anchor = cm.getCursor("anchor");
+            var headOffset = !cursorIsBefore(head, anchor) ? -1 : 0;
+            var anchorOffset = cursorIsBefore(head, anchor) ? -1 : 0;
+            head = offsetCursor(head, 0, headOffset);
+            anchor = offsetCursor(anchor, 0, anchorOffset);
+            cm.state.vim.sel.head = head;
+            cm.state.vim.sel.anchor = anchor;
+
+            isHandled = vimApi.handleKey(cm, key, origin);
+            if (cm.virtualSelection) {
+              cm.state.vim = cloneVimState(old);
+            }
+          });
+          if (cm.curOp.cursorActivity && !isHandled)
+            cm.curOp.cursorActivity = false;
+          cm.state.vim = vim;
+        }, true);
+      }
+      // some commands may bring visualMode and selection out of sync
+      if (isHandled && !vim.visualMode && !vim.insert && vim.visualMode != cm.somethingSelected()) {
+        handleExternalSelection(cm, vim);
+      }
+      return isHandled;
+    }
+    resetVimGlobalState();
+
+  return vimApi;
+}
+
+function initVim(CodeMirror5) {
+  CodeMirror5.Vim = initVim$1(CodeMirror5);
+  return CodeMirror5.Vim;
+}
+
+
+
+    CodeMirror.Vim = initVim(CodeMirror);
+  });
+  
\ No newline at end of file