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vim.js
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// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE
/**
* Supported keybindings:
*
* Motion:
* h, j, k, l
* gj, gk
* e, E, w, W, b, B, ge, gE
* f<character>, F<character>, t<character>, T<character>
* $, ^, 0, -, +, _
* gg, G
* %
* '<character>, `<character>
*
* Operator:
* d, y, c
* dd, yy, cc
* g~, g~g~
* >, <, >>, <<
*
* Operator-Motion:
* x, X, D, Y, C, ~
*
* Action:
* a, i, s, A, I, S, o, O
* zz, z., z<CR>, zt, zb, z-
* J
* u, Ctrl-r
* m<character>
* r<character>
*
* Modes:
* ESC - leave insert mode, visual mode, and clear input state.
* Ctrl-[, Ctrl-c - same as ESC.
*
* 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 instanstiation
* 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.
*/
(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';
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: ['<Space>'], type: 'keyToKey', toKeys: ['l'] },
{ keys: ['<BS>'], type: 'keyToKey', toKeys: ['h'] },
{ keys: ['<C-Space>'], type: 'keyToKey', toKeys: ['W'] },
{ keys: ['<C-BS>'], type: 'keyToKey', toKeys: ['B'] },
{ keys: ['<S-Space>'], type: 'keyToKey', toKeys: ['w'] },
{ keys: ['<S-BS>'], type: 'keyToKey', toKeys: ['b'] },
{ 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: ['s'], type: 'keyToKey', toKeys: ['c', 'l'], context: 'normal' },
{ keys: ['s'], type: 'keyToKey', toKeys: ['x', 'i'], context: 'visual'},
{ keys: ['S'], type: 'keyToKey', toKeys: ['c', 'c'], context: 'normal' },
{ keys: ['S'], type: 'keyToKey', toKeys: ['d', 'c', 'c'], 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' },
// 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: ['g','j'], type: 'motion',
motion: 'moveByDisplayLines',
motionArgs: { forward: true }},
{ keys: ['g','k'], 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: ['g', 'e'], type: 'motion',
motion: 'moveByWords',
motionArgs: { forward: false, wordEnd: true, inclusive: true }},
{ keys: ['g', 'E'], 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: ['<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: ['g', 'g'], 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: ['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',
motionArgs: { }},
{ keys: ['o'], type: 'motion', motion: 'moveToOtherHighlightedEnd', motionArgs: { }, 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: 'indent',
operatorArgs: { indentRight: true }},
{ keys: ['<'], type: 'operator', operator: 'indent',
operatorArgs: { indentRight: false }},
{ keys: ['g', '~'], type: 'operator', operator: 'swapcase' },
{ keys: ['n'], type: 'motion', motion: 'findNext',
motionArgs: { forward: true, toJumplist: true }},
{ keys: ['N'], type: 'motion', motion: 'findNext',
motionArgs: { forward: false, toJumplist: true }},
// 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 },
operatorMotionArgs: { visualLine: true }},
{ keys: ['Y'], type: 'operatorMotion', operator: 'yank',
motion: 'moveToEol', motionArgs: { inclusive: true },
operatorMotionArgs: { visualLine: true }},
{ keys: ['C'], type: 'operatorMotion',
operator: 'change',
motion: 'moveToEol', motionArgs: { inclusive: true },
operatorMotionArgs: { visualLine: true }},
{ keys: ['~'], type: 'operatorMotion',
operator: 'swapcase', operatorArgs: { shouldMoveCursor: true },
motion: 'moveByCharacters', motionArgs: { forward: true }},
// 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' }},
{ keys: ['A'], type: 'action', action: 'enterInsertMode', isEdit: true,
actionArgs: { insertAt: 'eol' }},
{ keys: ['A'], type: 'action', action: 'enterInsertMode', isEdit: true, actionArgs: { insertAt: 'endOfSelectedArea' }, context: 'visual' },
{ keys: ['i'], type: 'action', action: 'enterInsertMode', isEdit: true,
actionArgs: { insertAt: 'inplace' }},
{ keys: ['I'], type: 'action', action: 'enterInsertMode', isEdit: true,
actionArgs: { insertAt: 'firstNonBlank' }},
{ keys: ['o'], type: 'action', action: 'newLineAndEnterInsertMode',
isEdit: true, interlaceInsertRepeat: true,
actionArgs: { after: true }},
{ keys: ['O'], type: 'action', action: 'newLineAndEnterInsertMode',
isEdit: true, interlaceInsertRepeat: true,
actionArgs: { after: false }},
{ 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: ['g', 'v'], type: 'action', action: 'reselectLastSelection' },
{ keys: ['J'], type: 'action', action: 'joinLines', 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 }},
{ keys: ['u'], type: 'action', action: 'undo' },
{ keys: ['u'], type: 'action', action: 'changeCase', actionArgs: {toLower: true}, context: 'visual', isEdit: true },
{ keys: ['U'],type: 'action', action: 'changeCase', actionArgs: {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: ['z', 'z'], type: 'action', action: 'scrollToCursor',
actionArgs: { position: 'center' }},
{ keys: ['z', '.'], type: 'action', action: 'scrollToCursor',
actionArgs: { position: 'center' },
motion: 'moveToFirstNonWhiteSpaceCharacter' },
{ keys: ['z', 't'], type: 'action', action: 'scrollToCursor',
actionArgs: { position: 'top' }},
{ keys: ['z', '<CR>'], type: 'action', action: 'scrollToCursor',
actionArgs: { position: 'top' },
motion: 'moveToFirstNonWhiteSpaceCharacter' },
{ keys: ['z', '-'], type: 'action', action: 'scrollToCursor',
actionArgs: { position: 'bottom' }},
{ keys: ['z', 'b'], 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}},
// 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 Pos = CodeMirror.Pos;
var Vim = function() {
CodeMirror.defineOption('vimMode', false, function(cm, val) {
if (val) {
cm.setOption('keyMap', 'vim');
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));
} else if (cm.state.vim) {
cm.setOption('keyMap', 'default');
cm.setOption('disableInput', false);
cm.off('cursorActivity', onCursorActivity);
CodeMirror.off(cm.getInputField(), 'paste', getOnPasteFn(cm));
cm.state.vim = null;
}
});
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 wordRegexp = [(/\w/), (/[^\w\s]/)], bigWordRegexp = [(/\S/)];
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 specialSymbols = '~`!@#$%^&*()_-+=[{}]\\|/?.,<>:;"\''.split('');
var specialKeys = ['Left', 'Right', 'Up', 'Down', 'Space', 'Backspace',
'Esc', 'Home', 'End', 'PageUp', 'PageDown', 'Enter'];
var validMarks = [].concat(upperCaseAlphabet, lowerCaseAlphabet, numbers, ['<', '>']);
var validRegisters = [].concat(upperCaseAlphabet, lowerCaseAlphabet, numbers, ['-', '"', '.', ':', '/']);
function isLine(cm, line) {
return line >= cm.firstLine() && line <= cm.lastLine();
}
function isLowerCase(k) {
return (/^[a-z]$/).test(k);
}
function isMatchableSymbol(k) {
return '()[]{}'.indexOf(k) != -1;
}
function isNumber(k) {
return numberRegex.test(k);
}
function isUpperCase(k) {
return (/^[A-Z]$/).test(k);
}
function isWhiteSpaceString(k) {
return (/^\s*$/).test(k);
}
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) {
if (defaultValue === undefined) { throw Error('defaultValue is required'); }
if (!type) { type = 'string'; }
options[name] = {
type: type,
defaultValue: defaultValue
};
setOption(name, defaultValue);
}
function setOption(name, value) {
var option = options[name];
if (!option) {
throw Error('Unknown option: ' + name);
}
if (option.type == 'boolean') {
if (value && value !== true) {
throw Error('Invalid argument: ' + name + '=' + value);
} else if (value !== false) {
// Boolean options are set to true if value is not defined.
value = true;
}
}
option.value = option.type == 'boolean' ? !!value : value;
}
function getOption(name) {
var option = options[name];
if (!option) {
throw Error('Unknown option: ' + name);
}
return option.value;
}
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;
}
return {
cachedCursor: undefined, //used for # and * jumps
add: add,
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) {
this.onRecordingDone = cm.openDialog(
'(recording)['+registerName+']', 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: {},
// Mark for rendering fake cursor for visual mode.
fakeCursor: null,
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,
// Used by two-character ESC keymap routines. Should not be changed from false here.
awaitingEscapeSecondCharacter: false
};
}
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.
lastChararacterSearch: {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 vimApi= {
buildKeyMap: function() {
// TODO: Convert keymap into dictionary format for fast lookup.
},
// Testing hook, though it might be useful to expose the register
// controller anyways.
getRegisterController: function() {
return vimGlobalState.registerController;
},
// Testing hook.
resetVimGlobalState_: resetVimGlobalState,
// Testing hook.
getVimGlobalState_: function() {
return vimGlobalState;
},
// Testing hook.
maybeInitVimState_: maybeInitVimState,
InsertModeKey: InsertModeKey,
map: function(lhs, rhs, ctx) {
// Add user defined key bindings.
exCommandDispatcher.map(lhs, rhs, ctx);
},
setOption: setOption,
getOption: getOption,
defineOption: defineOption,
defineEx: function(name, prefix, func){
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'};
},
// This is the outermost function called by CodeMirror, after keys have
// been mapped to their Vim equivalents.
handleKey: function(cm, key) {
var command;
var vim = maybeInitVimState(cm);
var macroModeState = vimGlobalState.macroModeState;
if (macroModeState.isRecording) {
if (key == 'q') {
macroModeState.exitMacroRecordMode();
clearInputState(cm);
return;
}
}
if (key == '<Esc>') {
// Clear input state and get back to normal mode.
clearInputState(cm);
if (vim.visualMode) {
exitVisualMode(cm);
}
return;
}
// Enter visual mode when the mouse selects text.
if (!vim.visualMode &&
!cursorEqual(cm.getCursor('head'), cm.getCursor('anchor'))) {
vim.visualMode = true;
vim.visualLine = false;
CodeMirror.signal(cm, "vim-mode-change", {mode: "visual"});
cm.on('mousedown', exitVisualMode);
}
if (key != '0' || (key == '0' && vim.inputState.getRepeat() === 0)) {
// Have to special case 0 since it's both a motion and a number.
command = commandDispatcher.matchCommand(key, defaultKeymap, vim);
}
if (!command) {
if (isNumber(key)) {
// Increment count unless count is 0 and key is 0.
vim.inputState.pushRepeatDigit(key);
}
if (macroModeState.isRecording) {
logKey(macroModeState, key);
}
return;
}
if (command.type == 'keyToKey') {
// TODO: prevent infinite recursion.
for (var i = 0; i < command.toKeys.length; i++) {
this.handleKey(cm, command.toKeys[i]);
}
} else {
if (macroModeState.isRecording) {
logKey(macroModeState, key);
}
commandDispatcher.processCommand(cm, vim, command);
}
},
handleEx: function(cm, input) {
exCommandDispatcher.processCommand(cm, input);
}
};
// 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('');
}
};
/*
* 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) {
if (linewise && text.charAt(0) == '\n') {
text = text.slice(1) + '\n';
}
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;
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(key, keyMap, vim) {
var inputState = vim.inputState;
var keys = inputState.keyBuffer.concat(key);
var matchedCommands = [];
var selectedCharacter;
for (var i = 0; i < keyMap.length; i++) {
var command = keyMap[i];
if (matchKeysPartial(keys, command.keys)) {
if (inputState.operator && command.type == 'action') {
// Ignore matched action commands after an operator. Operators
// only operate on motions. This check is really for text
// objects since aW, a[ etcs conflicts with a.
continue;
}
// Match commands that take <character> as an argument.
if (command.keys[keys.length - 1] == 'character') {
selectedCharacter = keys[keys.length - 1];
if (selectedCharacter.length>1){
switch(selectedCharacter){
case '<CR>':
selectedCharacter='\n';
break;
case '<Space>':
selectedCharacter=' ';
break;
default:
continue;
}
}
}
// Add the command to the list of matched commands. Choose the best
// command later.
matchedCommands.push(command);
}
}
// Returns the command if it is a full match, or null if not.
function getFullyMatchedCommandOrNull(command) {
if (keys.length < command.keys.length) {
// Matches part of a multi-key command. Buffer and wait for next
// stroke.
inputState.keyBuffer.push(key);
return null;
} else {
if (command.keys[keys.length - 1] == 'character') {