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comparison .cms/lib/codemirror/keymap/vim.js @ 0:78edf6b517a0 draft

24.10

author	Coffee CMS <info@coffee-cms.ru>
date	Fri, 11 Oct 2024 22:40:23 +0000
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--1:000000000000
+:78edf6b517a0
+(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);
+});