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TiddlyWiki5/plugins/tiddlywiki/codemirror/files/keymap/vim.js

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/**
* 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: unamed, -, 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() {
'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>'] },
// 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}},
{ 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 } },
{ 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: { }},
// 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: ['a'], type: 'action', action: 'enterInsertMode', isEdit: true,
actionArgs: { insertAt: 'charAfter' }},
{ keys: ['A'], type: 'action', action: 'enterInsertMode', isEdit: true,
actionArgs: { insertAt: 'eol' }},
{ 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: ['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: ['<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', toJumplist: true }},
{ keys: ['#'], type: 'search',
searchArgs: { forward: false, querySrc: 'wordUnderCursor', toJumplist: true }},
// Ex command
{ keys: [':'], type: 'ex' }
];
var Vim = function() {
CodeMirror.defineOption('vimMode', false, function(cm, val) {
if (val) {
cm.setOption('keyMap', 'vim');
CodeMirror.signal(cm, "vim-mode-change", {mode: "normal"});
cm.on('beforeSelectionChange', beforeSelectionChange);
maybeInitVimState(cm);
} else if (cm.state.vim) {
cm.setOption('keyMap', 'default');
cm.off('beforeSelectionChange', beforeSelectionChange);
cm.state.vim = null;
}
});
function beforeSelectionChange(cm, cur) {
var vim = cm.state.vim;
if (vim.insertMode || vim.exMode) return;
var head = cur.head;
if (head.ch && head.ch == cm.doc.getLine(head.line).length) {
head.ch--;
}
}
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 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
};
};
var createMacroState = function() {
return {
macroKeyBuffer: [],
latestRegister: undefined,
inReplay: false,
lastInsertModeChanges: {
changes: [], // Change list
expectCursorActivityForChange: false // Set to true on change, false on cursorActivity.
},
enteredMacroMode: undefined,
isMacroPlaying: false,
toggle: function(cm, registerName) {
if (this.enteredMacroMode) { //onExit
this.enteredMacroMode(); // close dialog
this.enteredMacroMode = undefined;
} else { //onEnter
this.latestRegister = registerName;
this.enteredMacroMode = cm.openDialog(
'(recording)['+registerName+']', null, {bottom: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
};
}
return cm.state.vim;
}
var vimGlobalState;
function resetVimGlobalState() {
vimGlobalState = {
// The current search query.
searchQuery: null,
// Whether we are searching backwards.
searchIsReversed: false,
jumpList: createCircularJumpList(),
macroModeState: createMacroState(),
// Recording latest f, t, F or T motion command.
lastChararacterSearch: {increment:0, forward:true, selectedCharacter:''},
registerController: new RegisterController({})
};
}
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) {
// Add user defined key bindings.
exCommandDispatcher.map(lhs, rhs);
},
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.enteredMacroMode) {
if (key == 'q') {
actions.exitMacroRecordMode();
vim.inputState = new InputState();
return;
}
}
if (key == '<Esc>') {
// Clear input state and get back to normal mode.
vim.inputState = new InputState();
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);
}
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.enteredMacroMode) {
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 unamed 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;
};
/*
* 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) {
this.clear();
if (text) {
this.set(text, linewise);
}
}
Register.prototype = {
set: function(text, linewise) {
this.text = text;
this.linewise = !!linewise;
},
append: function(text, linewise) {
// if this register has ever been set to linewise, use linewise.
if (linewise || this.linewise) {
this.text += '\n' + text;
this.linewise = true;
} else {
this.text += text;
}
},
clear: function() {
this.text = '';
this.linewise = false;
},
toString: function() { return this.text; }
};
/*
* 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.unamedRegister = registers['"'] = new Register();
}
RegisterController.prototype = {
pushText: function(registerName, operator, text, linewise) {
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);
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.unamedRegister.set(text, linewise);
return;
}
// If we've gotten to this point, we've actually specified a register
var append = isUpperCase(registerName);
if (append) {
register.append(text, linewise);
// The unamed register always has the same value as the last used
// register.
this.unamedRegister.append(text, linewise);
} else {
register.set(text, linewise);
this.unamedRegister.set(text, linewise);
}
},
setRegisterText: function(name, text, linewise) {
this.getRegister(name).set(text, linewise);
},
// Gets the register named @name. If one of @name doesn't already exist,
// create it. If @name is invalid, return the unamedRegister.
getRegister: function(name) {
if (!this.isValidRegister(name)) {
return this.unamedRegister;
}
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));
}
}
};
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') {
inputState.selectedCharacter = selectedCharacter;
}
// Clear the buffer since a full match was found.
inputState.keyBuffer = [];
return command;
}
}
if (!matchedCommands.length) {
// Clear the buffer since there were no matches.
inputState.keyBuffer = [];
return null;
} else if (matchedCommands.length == 1) {
return getFullyMatchedCommandOrNull(matchedCommands[0]);
} else {
// Find the best match in the list of matchedCommands.
var context = vim.visualMode ? 'visual' : 'normal';
var bestMatch = matchedCommands[0]; // Default to first in the list.
for (var i = 0; i < matchedCommands.length; i++) {
if (matchedCommands[i].context == context) {
bestMatch = matchedCommands[i];
break;
}
}
return getFullyMatchedCommandOrNull(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;
default:
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.
vim.inputState = new InputState();
}
}
inputState.operator = command.operator;
inputState.operatorArgs = copyArgs(command.operatorArgs);
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;
vim.inputState = new InputState();
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;
getSearchState(cm).setReversed(!forward);
var promptPrefix = (forward) ? '/' : '?';
var originalQuery = getSearchState(cm).getQuery();
var originalScrollPos = cm.getScrollInfo();
function handleQuery(query, ignoreCase, smartCase) {
try {
updateSearchQuery(cm, query, ignoreCase, smartCase);
} catch (e) {
showConfirm(cm, 'Invalid regex: ' + query);
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 */);
}
function onPromptKeyUp(_e, query) {
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-[') {
updateSearchQuery(cm, originalQuery);
clearSearchHighlight(cm);
cm.scrollTo(originalScrollPos.left, originalScrollPos.top);
CodeMirror.e_stop(e);
close();
cm.focus();
}
}
switch (command.searchArgs.querySrc) {
case 'prompt':
showPrompt(cm, {
onClose: onPromptClose,
prefix: promptPrefix,
desc: searchPromptDesc,
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) {
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.
exCommandDispatcher.processCommand(cm, input);
}
function onPromptKeyDown(e, _input, close) {
var keyName = CodeMirror.keyName(e);
if (keyName == 'Esc' || keyName == 'Ctrl-C' || keyName == 'Ctrl-[') {
CodeMirror.e_stop(e);
close();
cm.focus();
}
}
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});
} else {
showPrompt(cm, { onClose: onPromptClose, prefix: ':',
onKeyDown: onPromptKeyDown});
}
}
},
evalInput: function(cm, vim) {
// If the motion comand 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 selectionEnd = cm.getCursor('head');
var selectionStart = cm.getCursor('anchor');
// The difference between cur and selection cursors are that cur is
// being operated on and ignores that there is a selection.
var curStart = copyCursor(selectionEnd);
var curOriginal = copyCursor(curStart);
var curEnd;
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;
vim.inputState = new InputState();
if (motion) {
var motionResult = motions[motion](cm, motionArgs, vim);
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, curOriginal, motionResult);
}
}
if (motionResult instanceof Array) {
curStart = motionResult[0];
curEnd = motionResult[1];
} else {
curEnd = motionResult;
}
// TODO: Handle null returns from motion commands better.
if (!curEnd) {
curEnd = { ch: curStart.ch, line: curStart.line };
}
if (vim.visualMode) {
// Check if the selection crossed over itself. Will need to shift
// the start point if that happened.
if (cursorIsBefore(selectionStart, selectionEnd) &&
(cursorEqual(selectionStart, curEnd) ||
cursorIsBefore(curEnd, selectionStart))) {
// The end of the selection has moved from after the start to
// before the start. We will shift the start right by 1.
selectionStart.ch += 1;
} else if (cursorIsBefore(selectionEnd, selectionStart) &&
(cursorEqual(selectionStart, curEnd) ||
cursorIsBefore(selectionStart, curEnd))) {
// The opposite happened. We will shift the start left by 1.
selectionStart.ch -= 1;
}
selectionEnd = curEnd;
if (vim.visualLine) {
if (cursorIsBefore(selectionStart, selectionEnd)) {
selectionStart.ch = 0;
var lastLine = cm.lastLine();
if (selectionEnd.line > lastLine) {
selectionEnd.line = lastLine;
}
selectionEnd.ch = lineLength(cm, selectionEnd.line);
} else {
selectionEnd.ch = 0;
selectionStart.ch = lineLength(cm, selectionStart.line);
}
}
cm.setSelection(selectionStart, selectionEnd);
updateMark(cm, vim, '<',
cursorIsBefore(selectionStart, selectionEnd) ? selectionStart
: selectionEnd);
updateMark(cm, vim, '>',
cursorIsBefore(selectionStart, selectionEnd) ? selectionEnd
: selectionStart);
} else if (!operator) {
curEnd = clipCursorToContent(cm, curEnd);
cm.setCursor(curEnd.line, curEnd.ch);
}
}
if (operator) {
var inverted = false;
vim.lastMotion = null;
operatorArgs.repeat = repeat; // Indent in visual mode needs this.
if (vim.visualMode) {
curStart = selectionStart;
curEnd = selectionEnd;
motionArgs.inclusive = true;
}
// Swap start and end if motion was backward.
if (cursorIsBefore(curEnd, curStart)) {
var tmp = curStart;
curStart = curEnd;
curEnd = tmp;
inverted = true;
}
if (motionArgs.inclusive && !(vim.visualMode && inverted)) {
// Move the selection end one to the right to include the last
// character.
curEnd.ch++;
}
var linewise = motionArgs.linewise ||
(vim.visualMode && vim.visualLine);
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);
}
operatorArgs.registerName = registerName;
// Keep track of linewise as it affects how paste and change behave.
operatorArgs.linewise = linewise;
operators[operator](cm, operatorArgs, vim, curStart,
curEnd, curOriginal);
if (vim.visualMode) {
exitVisualMode(cm);
}
}
},
recordLastEdit: function(vim, inputState, actionCommand) {
var macroModeState = vimGlobalState.macroModeState;
if (macroModeState.inReplay) { return; }
vim.lastEditInputState = inputState;
vim.lastEditActionCommand = actionCommand;
macroModeState.lastInsertModeChanges.changes = [];
macroModeState.lastInsertModeChanges.expectCursorActivityForChange = false;
}
};
/**
* 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, motionArgs) {
var line = getUserVisibleLines(cm).top + motionArgs.repeat -1;
return { line: line, ch: findFirstNonWhiteSpaceCharacter(cm.getLine(line)) };
},
moveToMiddleLine: function(cm) {
var range = getUserVisibleLines(cm);
var line = Math.floor((range.top + range.bottom) * 0.5);
return { line: line, ch: findFirstNonWhiteSpaceCharacter(cm.getLine(line)) };
},
moveToBottomLine: function(cm, motionArgs) {
var line = getUserVisibleLines(cm).bottom - motionArgs.repeat +1;
return { line: line, ch: findFirstNonWhiteSpaceCharacter(cm.getLine(line)) };
},
expandToLine: function(cm, motionArgs) {
// Expands forward to end of line, and then to next line if repeat is
// >1. Does not handle backward motion!
var cur = cm.getCursor();
return { line: cur.line + motionArgs.repeat - 1, ch: Infinity };
},
findNext: function(cm, 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);
},
goToMark: function(_cm, motionArgs, vim) {
var mark = vim.marks[motionArgs.selectedCharacter];
if (mark) {
return mark.find();
}
return null;
},
jumpToMark: function(cm, motionArgs, vim) {
var best = cm.getCursor();
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) ?
cusrorIsBetween(cursor, mark, best) :
cusrorIsBetween(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.ch = findFirstNonWhiteSpaceCharacter(cm.getLine(best.line));
}
return best;
},
moveByCharacters: function(cm, motionArgs) {
var cur = cm.getCursor();
var repeat = motionArgs.repeat;
var ch = motionArgs.forward ? cur.ch + repeat : cur.ch - repeat;
return { line: cur.line, ch: ch };
},
moveByLines: function(cm, motionArgs, vim) {
var cur = cm.getCursor();
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();
// Vim cancels linewise motions that start on an edge and move beyond
// that edge. It does not cancel motions that do not start on an edge.
if ((line < first && cur.line == first) ||
(line > last && cur.line == last)) {
return;
}
if(motionArgs.toFirstChar){
endCh=findFirstNonWhiteSpaceCharacter(cm.getLine(line));
vim.lastHPos = endCh;
}
vim.lastHSPos = cm.charCoords({line:line, ch:endCh},'div').left;
return { line: line, ch: endCh };
},
moveByDisplayLines: function(cm, motionArgs, vim) {
var cur = cm.getCursor();
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({ line: cm.firstLine(), ch: 0}, 'div');
resCoords.left = vim.lastHSPos;
res = cm.coordsChar(resCoords, 'div');
}
}
vim.lastHPos = res.ch;
return res;
},
moveByPage: function(cm, 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 = cm.getCursor();
var repeat = motionArgs.repeat;
cm.moveV((motionArgs.forward ? repeat : -repeat), 'page');
var curEnd = cm.getCursor();
cm.setCursor(curStart);
return curEnd;
},
moveByParagraph: function(cm, motionArgs) {
var line = cm.getCursor().line;
var repeat = motionArgs.repeat;
var inc = motionArgs.forward ? 1 : -1;
for (var i = 0; i < repeat; i++) {
if ((!motionArgs.forward && line === cm.firstLine() ) ||
(motionArgs.forward && line == cm.lastLine())) {
break;
}
line += inc;
while (line !== cm.firstLine() && line != cm.lastLine() && cm.getLine(line)) {
line += inc;
}
}
return { line: line, ch: 0 };
},
moveByScroll: function(cm, 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(cm.getCursor(), 'local');
motionArgs.repeat = repeat;
var curEnd = motions.moveByDisplayLines(cm, 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, motionArgs) {
return moveToWord(cm, motionArgs.repeat, !!motionArgs.forward,
!!motionArgs.wordEnd, !!motionArgs.bigWord);
},
moveTillCharacter: function(cm, 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 cm.getCursor();
curEnd.ch += increment;
return curEnd;
},
moveToCharacter: function(cm, motionArgs) {
var repeat = motionArgs.repeat;
recordLastCharacterSearch(0, motionArgs);
return moveToCharacter(cm, repeat, motionArgs.forward,
motionArgs.selectedCharacter) || cm.getCursor();
},
moveToSymbol: function(cm, motionArgs) {
var repeat = motionArgs.repeat;
return findSymbol(cm, repeat, motionArgs.forward,
motionArgs.selectedCharacter) || cm.getCursor();
},
moveToColumn: function(cm, 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(cm.getCursor(),'div').left;
return moveToColumn(cm, repeat);
},
moveToEol: function(cm, motionArgs, vim) {
var cur = cm.getCursor();
vim.lastHPos = Infinity;
var retval={ line: cur.line + motionArgs.repeat - 1, ch: Infinity };
var end=cm.clipPos(retval);
end.ch--;
vim.lastHSPos = cm.charCoords(end,'div').left;
return retval;
},
moveToFirstNonWhiteSpaceCharacter: function(cm) {
// Go to the start of the line where the text begins, or the end for
// whitespace-only lines
var cursor = cm.getCursor();
return { line: cursor.line,
ch: findFirstNonWhiteSpaceCharacter(cm.getLine(cursor.line)) };
},
moveToMatchedSymbol: function(cm) {
var cursor = cm.getCursor();
var line = cursor.line;
var ch = cursor.ch;
var lineText = cm.getLine(line);
var symbol;
var startContext = cm.getTokenAt(cursor).type;
var startCtxLevel = getContextLevel(startContext);
do {
symbol = lineText.charAt(ch++);
if (symbol && isMatchableSymbol(symbol)) {
var endContext = cm.getTokenAt({line:line, ch:ch}).type;
var endCtxLevel = getContextLevel(endContext);
if (startCtxLevel >= endCtxLevel) {
break;
}
}
} while (symbol);
if (symbol) {
return findMatchedSymbol(cm, {line:line, ch:ch-1}, symbol);
} else {
return cursor;
}
},
moveToStartOfLine: function(cm) {
var cursor = cm.getCursor();
return { line: cursor.line, ch: 0 };
},
moveToLineOrEdgeOfDocument: function(cm, motionArgs) {
var lineNum = motionArgs.forward ? cm.lastLine() : cm.firstLine();
if (motionArgs.repeatIsExplicit) {
lineNum = motionArgs.repeat - cm.getOption('firstLineNumber');
}
return { line: lineNum,
ch: findFirstNonWhiteSpaceCharacter(cm.getLine(lineNum)) };
},
textObjectManipulation: function(cm, motionArgs) {
var character = motionArgs.selectedCharacter;
// 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;
if (!textObjects[character]) {
// No text object defined for this, don't move.
return null;
}
var tmp = textObjects[character](cm, inclusive);
var start = tmp.start;
var end = tmp.end;
return [start, end];
},
repeatLastCharacterSearch: function(cm, motionArgs) {
var lastSearch = vimGlobalState.lastChararacterSearch;
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 cm.getCursor();
}
curEnd.ch += increment;
return curEnd;
}
};
var operators = {
change: function(cm, operatorArgs, _vim, curStart, curEnd) {
vimGlobalState.registerController.pushText(
operatorArgs.registerName, 'change', cm.getRange(curStart, curEnd),
operatorArgs.linewise);
if (operatorArgs.linewise) {
// Push the next line back down, if there is a next line.
var replacement = curEnd.line > cm.lastLine() ? '' : '\n';
cm.replaceRange(replacement, curStart, curEnd);
cm.indentLine(curStart.line, 'smart');
// null ch so setCursor moves to end of line.
curStart.ch = null;
} else {
// Exclude trailing whitespace if the range is not all whitespace.
var text = cm.getRange(curStart, curEnd);
if (!isWhiteSpaceString(text)) {
var match = (/\s+$/).exec(text);
if (match) {
curEnd = offsetCursor(curEnd, 0, - match[0].length);
}
}
cm.replaceRange('', curStart, curEnd);
}
actions.enterInsertMode(cm, {}, cm.state.vim);
cm.setCursor(curStart);
},
// delete is a javascript keyword.
'delete': function(cm, operatorArgs, _vim, curStart, curEnd) {
// If the ending line is past the last line, inclusive, instead of
// including the trailing \n, include the \n before the starting line
if (operatorArgs.linewise &&
curEnd.line > cm.lastLine() && curStart.line > cm.firstLine()) {
curStart.line--;
curStart.ch = lineLength(cm, curStart.line);
}
vimGlobalState.registerController.pushText(
operatorArgs.registerName, 'delete', cm.getRange(curStart, curEnd),
operatorArgs.linewise);
cm.replaceRange('', curStart, curEnd);
if (operatorArgs.linewise) {
cm.setCursor(motions.moveToFirstNonWhiteSpaceCharacter(cm));
} else {
cm.setCursor(curStart);
}
},
indent: function(cm, operatorArgs, vim, curStart, curEnd) {
var startLine = curStart.line;
var endLine = curEnd.line;
// In visual mode, n> shifts the selection right n times, instead of
// shifting n lines right once.
var repeat = (vim.visualMode) ? operatorArgs.repeat : 1;
if (operatorArgs.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, operatorArgs.indentRight);
}
}
cm.setCursor(curStart);
cm.setCursor(motions.moveToFirstNonWhiteSpaceCharacter(cm));
},
swapcase: function(cm, operatorArgs, _vim, curStart, curEnd, curOriginal) {
var toSwap = cm.getRange(curStart, curEnd);
var swapped = '';
for (var i = 0; i < toSwap.length; i++) {
var character = toSwap.charAt(i);
swapped += isUpperCase(character) ? character.toLowerCase() :
character.toUpperCase();
}
cm.replaceRange(swapped, curStart, curEnd);
if (!operatorArgs.shouldMoveCursor) {
cm.setCursor(curOriginal);
}
},
yank: function(cm, operatorArgs, _vim, curStart, curEnd, curOriginal) {
vimGlobalState.registerController.pushText(
operatorArgs.registerName, 'yank',
cm.getRange(curStart, curEnd), operatorArgs.linewise);
cm.setCursor(curOriginal);
}
};
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);
},
scrollToCursor: function(cm, actionArgs) {
var lineNum = cm.getCursor().line;
var charCoords = cm.charCoords({line: lineNum, ch: 0}, 'local');
var height = cm.getScrollInfo().clientHeight;
var y = charCoords.top;
var lineHeight = charCoords.bottom - y;
switch (actionArgs.position) {
case 'center': y = y - (height / 2) + lineHeight;
break;
case 'bottom': y = y - height + lineHeight*1.4;
break;
case 'top': y = y + lineHeight*0.4;
break;
}
cm.scrollTo(null, y);
},
replayMacro: function(cm, actionArgs) {
var registerName = actionArgs.selectedCharacter;
var repeat = actionArgs.repeat;
var macroModeState = vimGlobalState.macroModeState;
if (registerName == '@') {
registerName = macroModeState.latestRegister;
}
var keyBuffer = parseRegisterToKeyBuffer(macroModeState, registerName);
while(repeat--){
executeMacroKeyBuffer(cm, macroModeState, keyBuffer);
}
},
exitMacroRecordMode: function() {
var macroModeState = vimGlobalState.macroModeState;
macroModeState.toggle();
parseKeyBufferToRegister(macroModeState.latestRegister,
macroModeState.macroKeyBuffer);
},
enterMacroRecordMode: function(cm, actionArgs) {
var macroModeState = vimGlobalState.macroModeState;
var registerName = actionArgs.selectedCharacter;
macroModeState.toggle(cm, registerName);
emptyMacroKeyBuffer(macroModeState);
},
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;
if (insertAt == 'eol') {
var cursor = cm.getCursor();
cursor = { line: cursor.line, ch: lineLength(cm, cursor.line) };
cm.setCursor(cursor);
} else if (insertAt == 'charAfter') {
cm.setCursor(offsetCursor(cm.getCursor(), 0, 1));
} else if (insertAt == 'firstNonBlank') {
cm.setCursor(motions.moveToFirstNonWhiteSpaceCharacter(cm));
}
cm.setOption('keyMap', 'vim-insert');
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.setOption('keyMap', 'vim-insert');
CodeMirror.signal(cm, "vim-mode-change", {mode: "insert"});
}
if (!vimGlobalState.macroModeState.inReplay) {
// Only record if not replaying.
cm.on('change', onChange);
cm.on('cursorActivity', onCursorActivity);
CodeMirror.on(cm.getInputField(), 'keydown', onKeyEventTargetKeyDown);
}
},
toggleVisualMode: function(cm, actionArgs, vim) {
var repeat = actionArgs.repeat;
var curStart = cm.getCursor();
var curEnd;
// 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) {
cm.on('mousedown', exitVisualMode);
vim.visualMode = true;
vim.visualLine = !!actionArgs.linewise;
if (vim.visualLine) {
curStart.ch = 0;
curEnd = clipCursorToContent(cm, {
line: curStart.line + repeat - 1,
ch: lineLength(cm, curStart.line)
}, true /** includeLineBreak */);
} else {
curEnd = clipCursorToContent(cm, {
line: curStart.line,
ch: curStart.ch + repeat
}, true /** includeLineBreak */);
}
// Make the initial selection.
if (!actionArgs.repeatIsExplicit && !vim.visualLine) {
// This is a strange case. Here the implicit repeat is 1. The
// following commands lets the cursor hover over the 1 character
// selection.
cm.setCursor(curEnd);
cm.setSelection(curEnd, curStart);
} else {
cm.setSelection(curStart, curEnd);
}
CodeMirror.signal(cm, "vim-mode-change", {mode: "visual", subMode: vim.visualLine ? "linewise" : ""});
} else {
curStart = cm.getCursor('anchor');
curEnd = cm.getCursor('head');
if (!vim.visualLine && actionArgs.linewise) {
// Shift-V pressed in characterwise visual mode. Switch to linewise
// visual mode instead of exiting visual mode.
vim.visualLine = true;
curStart.ch = cursorIsBefore(curStart, curEnd) ? 0 :
lineLength(cm, curStart.line);
curEnd.ch = cursorIsBefore(curStart, curEnd) ?
lineLength(cm, curEnd.line) : 0;
cm.setSelection(curStart, curEnd);
CodeMirror.signal(cm, "vim-mode-change", {mode: "visual", subMode: "linewise"});
} else if (vim.visualLine && !actionArgs.linewise) {
// v pressed in linewise visual mode. Switch to characterwise visual
// mode instead of exiting visual mode.
vim.visualLine = false;
CodeMirror.signal(cm, "vim-mode-change", {mode: "visual"});
} else {
exitVisualMode(cm);
}
}
updateMark(cm, vim, '<', cursorIsBefore(curStart, curEnd) ? curStart
: curEnd);
updateMark(cm, vim, '>', cursorIsBefore(curStart, curEnd) ? curEnd
: curStart);
},
joinLines: function(cm, actionArgs, vim) {
var curStart, curEnd;
if (vim.visualMode) {
curStart = cm.getCursor('anchor');
curEnd = cm.getCursor('head');
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, { line: curStart.line + repeat - 1,
ch: Infinity });
}
var finalCh = 0;
cm.operation(function() {
for (var i = curStart.line; i < curEnd.line; i++) {
finalCh = lineLength(cm, curStart.line);
var tmp = { line: curStart.line + 1,
ch: lineLength(cm, curStart.line + 1) };
var text = cm.getRange(curStart, tmp);
text = text.replace(/\n\s*/g, ' ');
cm.replaceRange(text, curStart, tmp);
}
var curFinalPos = { line: curStart.line, ch: finalCh };
cm.setCursor(curFinalPos);
});
},
newLineAndEnterInsertMode: function(cm, actionArgs, vim) {
vim.insertMode = true;
var insertAt = cm.getCursor();
if (insertAt.line === cm.firstLine() && !actionArgs.after) {
// Special case for inserting newline before start of document.
cm.replaceRange('\n', { line: cm.firstLine(), ch: 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) {
var cur = cm.getCursor();
var register = vimGlobalState.registerController.getRegister(
actionArgs.registerName);
if (!register.text) {
return;
}
for (var text = '', i = 0; i < actionArgs.repeat; i++) {
text += register.text;
}
var linewise = register.linewise;
if (linewise) {
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;
}
cm.replaceRange(text, cur);
// Now fine tune the cursor to where we want it.
var curPosFinal;
var idx;
if (linewise && actionArgs.after) {
curPosFinal = { line: cur.line + 1,
ch: findFirstNonWhiteSpaceCharacter(cm.getLine(cur.line + 1)) };
} else if (linewise && !actionArgs.after) {
curPosFinal = { line: cur.line,
ch: 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);
}
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;
if(vim.visualMode){
curStart=cm.getCursor('start');
curEnd=cm.getCursor('end');
// workaround to catch the character under the cursor
// existing workaround doesn't cover actions
curEnd=cm.clipPos({line: curEnd.line, ch: curEnd.ch+1});
}else{
var line = cm.getLine(curStart.line);
replaceTo = curStart.ch + actionArgs.repeat;
if (replaceTo > line.length) {
replaceTo=line.length;
}
curEnd = { line: curStart.line, ch: 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);
cm.replaceRange(replaceWithStr, curStart, curEnd);
if(vim.visualMode){
cm.setCursor(curStart);
exitVisualMode(cm);
}else{
cm.setCursor(offsetCursor(curEnd, 0, -1));
}
}
},
incrementNumberToken: function(cm, actionArgs) {
var cur = cm.getCursor();
var lineStr = cm.getLine(cur.line);
var re = /-?\d+/g;
var match;
var start;
var end;
var numberStr;
var token;
while ((match = re.exec(lineStr)) !== null) {
token = match[0];
start = match.index;
end = start + token.length;
if(cur.ch < end)break;
}
if(!actionArgs.backtrack && (end <= cur.ch))return;
if (token) {
var increment = actionArgs.increase ? 1 : -1;
var number = parseInt(token) + (increment * actionArgs.repeat);
var from = {ch:start, line:cur.line};
var to = {ch:end, line:cur.line};
numberStr = number.toString();
cm.replaceRange(numberStr, from, to);
} else {
return;
}
cm.setCursor({line: cur.line, ch: 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 */);
}
};
var textObjects = {
// TODO: lots of possible exceptions that can be thrown here. Try da(
// outside of a () block.
// TODO: implement text objects for the reverse like }. Should just be
// an additional mapping after moving to the defaultKeyMap.
'w': function(cm, inclusive) {
return expandWordUnderCursor(cm, inclusive, true /** forward */,
false /** bigWord */);
},
'W': function(cm, inclusive) {
return expandWordUnderCursor(cm, inclusive,
true /** forward */, true /** bigWord */);
},
'{': function(cm, inclusive) {
return selectCompanionObject(cm, '}', inclusive);
},
'(': function(cm, inclusive) {
return selectCompanionObject(cm, ')', inclusive);
},
'[': function(cm, inclusive) {
return selectCompanionObject(cm, ']', inclusive);
},
'\'': function(cm, inclusive) {
return findBeginningAndEnd(cm, "'", inclusive);
},
'"': function(cm, inclusive) {
return findBeginningAndEnd(cm, '"', inclusive);
}
};
/*
* 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, includeLineBreak) {
var line = Math.min(Math.max(cm.firstLine(), cur.line), cm.lastLine() );
var maxCh = lineLength(cm, line) - 1;
maxCh = (includeLineBreak) ? maxCh + 1 : maxCh;
var ch = Math.min(Math.max(0, cur.ch), maxCh);
return { line: line, ch: 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) {
return { line: cur.line + offsetLine, ch: cur.ch + offsetCh };
}
function matchKeysPartial(pressed, mapped) {
for (var i = 0; i < pressed.length; i++) {
// 'character' means any character. For mark, register commads, etc.
if (pressed[i] != mapped[i] && mapped[i] != 'character') {
return false;
}
}
return true;
}
function repeatFn(cm, fn, repeat) {
return function() {
for (var i = 0; i < repeat; i++) {
fn(cm);
}
};
}
function copyCursor(cur) {
return { line: cur.line, ch: 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 cusrorIsBetween(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 reverse(s){
return s.split('').reverse().join('');
}
function trim(s) {
if (s.trim) {
return s.trim();
}
return s.replace(/^\s+|\s+$/g, '');
}
function escapeRegex(s) {
return s.replace(/([.?*+$\[\]\/\\(){}|\-])/g, '\\$1');
}
function exitVisualMode(cm) {
cm.off('mousedown', exitVisualMode);
var vim = cm.state.vim;
vim.visualMode = false;
vim.visualLine = false;
var selectionStart = cm.getCursor('anchor');
var selectionEnd = cm.getCursor('head');
if (!cursorEqual(selectionStart, selectionEnd)) {
// Clear the selection and set the cursor only if the selection has not
// already been cleared. Otherwise we risk moving the cursor somewhere
// it's not supposed to be.
cm.setCursor(clipCursorToContent(cm, selectionEnd));
}
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 whitepsace.
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 = cm.getCursor();
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 textAfterIdx = line.substring(idx);
var firstMatchedChar;
if (noSymbol) {
firstMatchedChar = textAfterIdx.search(/\w/);
} else {
firstMatchedChar = textAfterIdx.search(/\S/);
}
if (firstMatchedChar == -1) {
return null;
}
idx += firstMatchedChar;
textAfterIdx = line.substring(idx);
var textBeforeIdx = line.substring(0, idx);
var matchRegex;
// Greedy matchers for the "word" we are trying to expand.
if (bigWord) {
matchRegex = /^\S+/;
} else {
if ((/\w/).test(line.charAt(idx))) {
matchRegex = /^\w+/;
} else {
matchRegex = /^[^\w\s]+/;
}
}
var wordAfterRegex = matchRegex.exec(textAfterIdx);
var wordStart = idx;
var wordEnd = idx + wordAfterRegex[0].length;
// TODO: Find a better way to do this. It will be slow on very long lines.
var revTextBeforeIdx = reverse(textBeforeIdx);
var wordBeforeRegex = matchRegex.exec(revTextBeforeIdx);
if (wordBeforeRegex) {
wordStart -= wordBeforeRegex[0].length;
}
if (inclusive) {
// If present, trim all whitespace after word.
// Otherwise, trim all whitespace before word.
var textAfterWordEnd = line.substring(wordEnd);
var whitespacesAfterWord = textAfterWordEnd.match(/^\s*/)[0].length;
if (whitespacesAfterWord > 0) {
wordEnd += whitespacesAfterWord;
} else {
var revTrim = revTextBeforeIdx.length - wordStart;
var textBeforeWordStart = revTextBeforeIdx.substring(revTrim);
var whitespacesBeforeWord = textBeforeWordStart.match(/^\s*/)[0].length;
wordStart -= whitespacesBeforeWord;
}
}
return { start: { line: cur.line, ch: wordStart },
end: { line: cur.line, ch: wordEnd }};
}
function recordJumpPosition(cm, oldCur, newCur) {
if(!cursorEqual(oldCur, newCur)) {
vimGlobalState.jumpList.add(cm, oldCur, newCur);
}
}
function recordLastCharacterSearch(increment, args) {
vimGlobalState.lastChararacterSearch.increment = increment;
vimGlobalState.lastChararacterSearch.forward = args.forward;
vimGlobalState.lastChararacterSearch.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 = 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 { line: line, ch: 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 regexps = bigWord ? bigWordRegexp : wordRegexp;
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 < regexps.length && !foundWord; ++i) {
if (regexps[i].test(line.charAt(pos))) {
wordStart = pos;
// Advance to end of word.
while (pos != stop && regexps[i].test(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;
}
// Should never get here.
throw new Error('The impossible happened.');
}
/**
* @param {CodeMirror} cm CodeMirror object.
* @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, repeat, forward, wordEnd, bigWord) {
var cur = cm.getCursor();
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 = {line: word.line, ch: 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 {line: lastWord.line, ch: lastWord.from};
} else if (forward && wordEnd) {
return {line: lastWord.line, ch: 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 {line: lastWord.line, ch: lastWord.to};
} else {
// b
return {line: lastWord.line, ch: lastWord.from};
}
}
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 { line: cm.getCursor().line, ch: 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, { line: line, ch: 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 getContextLevel(ctx) {
return (ctx === 'string' || ctx === 'comment') ? 1 : 0;
}
function findMatchedSymbol(cm, cur, symb) {
var line = cur.line;
var ch = cur.ch;
symb = symb ? symb : cm.getLine(line).charAt(ch);
var symbContext = cm.getTokenAt({line:line, ch:ch+1}).type;
var symbCtxLevel = getContextLevel(symbContext);
var reverseSymb = ({
'(': ')', ')': '(',
'[': ']', ']': '[',
'{': '}', '}': '{'})[symb];
// Couldn't find a matching symbol, abort
if (!reverseSymb) {
return cur;
}
// set our increment to move forward (+1) or backwards (-1)
// depending on which bracket we're matching
var increment = ({'(': 1, '{': 1, '[': 1})[symb] || -1;
var endLine = increment === 1 ? cm.lineCount() : -1;
var depth = 1, nextCh = symb, index = ch, lineText = cm.getLine(line);
// Simple search for closing paren--just count openings and closings till
// we find our match
// TODO: use info from CodeMirror to ignore closing brackets in comments
// and quotes, etc.
while (line !== endLine && depth > 0) {
index += increment;
nextCh = lineText.charAt(index);
if (!nextCh) {
line += increment;
lineText = cm.getLine(line) || '';
if (increment > 0) {
index = 0;
} else {
var lineLen = lineText.length;
index = (lineLen > 0) ? (lineLen-1) : 0;
}
nextCh = lineText.charAt(index);
}
var revSymbContext = cm.getTokenAt({line:line, ch:index+1}).type;
var revSymbCtxLevel = getContextLevel(revSymbContext);
if (symbCtxLevel >= revSymbCtxLevel) {
if (nextCh === symb) {
depth++;
} else if (nextCh === reverseSymb) {
depth--;
}
}
}
if (nextCh) {
return { line: line, ch: index };
}
return cur;
}
function selectCompanionObject(cm, revSymb, inclusive) {
var cur = cm.getCursor();
var end = findMatchedSymbol(cm, cur, revSymb);
var start = findMatchedSymbol(cm, end);
start.ch += inclusive ? 1 : 0;
end.ch += inclusive ? 0 : 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, symb, inclusive) {
var cur = cm.getCursor();
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: { line: cur.line, ch: start },
end: { line: cur.line, ch: end }
};
}
// Search functions
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;
}
};
function getSearchState(cm) {
var vim = cm.state.vim;
return vim.searchState_ || (vim.searchState_ = new SearchState());
}
function dialog(cm, template, shortText, onClose, options) {
if (cm.openDialog) {
cm.openDialog(template, onClose, { bottom: true, value: options.value,
onKeyDown: options.onKeyDown, onKeyUp: options.onKeyUp });
}
else {
onClose(prompt(shortText, ''));
}
}
function findUnescapedSlashes(str) {
var escapeNextChar = false;
var slashes = [];
for (var i = 0; i < str.length; i++) {
var c = str.charAt(i);
if (!escapeNextChar && c == '/') {
slashes.push(i);
}
escapeNextChar = (c == '\\');
}
return slashes;
}
/**
* 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) {
// 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 (smartCase) {
ignoreCase = (/^[^A-Z]*$/).test(regexPart);
}
var regexp = new RegExp(regexPart,
(ignoreCase || forceIgnoreCase) ? 'i' : undefined);
return regexp;
}
function showConfirm(cm, text) {
if (cm.openNotification) {
cm.openNotification('<span style="color: red">' + text + '</span>',
{bottom: true, duration: 5000});
} else {
alert(text);
}
}
function makePrompt(prefix, desc) {
var raw = '';
if (prefix) {
raw += '<span style="font-family: monospace">' + prefix + '</span>';
}
raw += '<input type="text"/> ' +
'<span style="color: #888">';
if (desc) {
raw += '<span style="color: #888">';
raw += desc;
raw += '</span>';
}
return raw;
}
var searchPromptDesc = '(Javascript regexp)';
function showPrompt(cm, options) {
var shortText = (options.prefix || '') + ' ' + (options.desc || '');
var prompt = makePrompt(options.prefix, options.desc);
dialog(cm, prompt, shortText, options.onClose, options);
}
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
};
}
function highlightSearchMatches(cm, query) {
var overlay = getSearchState(cm).getOverlay();
if (!overlay || query != overlay.query) {
if (overlay) {
cm.removeOverlay(overlay);
}
overlay = searchOverlay(query);
cm.addOverlay(overlay);
getSearchState(cm).setOverlay(overlay);
}
}
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)) { 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) ? { line: cm.lastLine() } : {line: cm.firstLine(), ch: 0} );
if (!cursor.find(prev)) {
return;
}
}
}
return cursor.from();
});
}
function clearSearchHighlight(cm) {
cm.removeOverlay(getSearchState(cm).getOverlay());
getSearchState(cm).setOverlay(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 (end) {
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};
}
// Ex command handling
// 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: 'map', type: 'builtIn' },
{ name: 'write', shortName: 'w', type: 'builtIn' },
{ name: 'undo', shortName: 'u', type: 'builtIn' },
{ name: 'redo', shortName: 'red', type: 'builtIn' },
{ name: 'sort', shortName: 'sor', type: 'builtIn'},
{ name: 'substitute', shortName: 's', type: 'builtIn'},
{ name: 'nohlsearch', shortName: 'noh', type: 'builtIn'},
{ name: 'delmarks', shortName: 'delm', type: 'builtin'}
];
Vim.ExCommandDispatcher = function() {
this.buildCommandMap_();
};
Vim.ExCommandDispatcher.prototype = {
processCommand: function(cm, input) {
var vim = cm.state.vim;
if (vim.visualMode) {
exitVisualMode(cm);
}
var inputStream = new CodeMirror.StringStream(input);
var params = {};
params.input = input;
try {
this.parseInput_(cm, inputStream, params);
} catch(e) {
showConfirm(cm, e);
return;
}
var commandName;
if (!params.commandName) {
// If only a line range is defined, move to the line.
if (params.line !== undefined) {
commandName = 'move';
}
} else {
var command = this.matchCommand_(params.commandName);
if (command) {
commandName = command.name;
this.parseCommandArgs_(inputStream, params, command);
if (command.type == 'exToKey') {
// Handle Ex to Key mapping.
for (var i = 0; i < command.toKeys.length; i++) {
CodeMirror.Vim.handleKey(cm, command.toKeys[i]);
}
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);
} catch(e) {
showConfirm(cm, 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) {
return parseInt(numberMatch[1], 10) - 1;
}
switch (inputStream.next()) {
case '.':
return cm.getCursor().line;
case '$':
return cm.lastLine();
case '\'':
var mark = cm.state.vim.marks[inputStream.next()];
if (mark && mark.find()) {
return mark.find().line;
}
throw new Error('Mark not set');
default:
inputStream.backUp(1);
return undefined;
}
},
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) {
if (lhs != ':' && lhs.charAt(0) == ':') {
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)
};
} else {
// Ex to key mapping
this.commandMap_[commandName] = {
name: commandName,
type: 'exToKey',
toKeys: parseKeyString(rhs)
};
}
} else {
if (rhs != ':' && rhs.charAt(0) == ':') {
// Key to Ex mapping.
defaultKeymap.unshift({
keys: parseKeyString(lhs),
type: 'keyToEx',
exArgs: { input: rhs.substring(1) }});
} else {
// Key to key mapping
defaultKeymap.unshift({
keys: parseKeyString(lhs),
type: 'keyToKey',
toKeys: parseKeyString(rhs)
});
}
}
}
};
// Converts a key string sequence of the form a<C-w>bd<Left> into Vim's
// keymap representation.
function parseKeyString(str) {
var key, match;
var keys = [];
while (str) {
match = (/<\w+-.+?>|<\w+>|./).exec(str);
if(match === null)break;
key = match[0];
str = str.substring(match.index + key.length);
keys.push(key);
}
return keys;
}
var exCommands = {
map: function(cm, params) {
var mapArgs = params.args;
if (!mapArgs || mapArgs.length < 2) {
if (cm) {
showConfirm(cm, 'Invalid mapping: ' + params.input);
}
return;
}
exCommandDispatcher.map(mapArgs[0], mapArgs[1], cm);
},
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});
},
sort: function(cm, params) {
var reverse, ignoreCase, unique, number;
function parseArgs() {
if (params.argString) {
var args = new CodeMirror.StringStream(params.argString);
if (args.eat('!')) { reverse = true; }
if (args.eol()) { return; }
if (!args.eatSpace()) { throw new Error('invalid arguments ' + args.match(/.*/)[0]); }
var opts = args.match(/[a-z]+/);
if (opts) {
opts = opts[0];
ignoreCase = opts.indexOf('i') != -1;
unique = opts.indexOf('u') != -1;
var decimal = opts.indexOf('d') != -1 && 1;
var hex = opts.indexOf('x') != -1 && 1;
var octal = opts.indexOf('o') != -1 && 1;
if (decimal + hex + octal > 1) { throw new Error('invalid arguments'); }
number = decimal && 'decimal' || hex && 'hex' || octal && 'octal';
}
if (args.eatSpace() && args.match(/\/.*\//)) { throw new Error('patterns not supported'); }
}
}
parseArgs();
var lineStart = params.line || cm.firstLine();
var lineEnd = params.lineEnd || params.line || cm.lastLine();
if (lineStart == lineEnd) { return; }
var curStart = { line: lineStart, ch: 0 };
var curEnd = { line: lineEnd, ch: lineLength(cm, lineEnd) };
var text = cm.getRange(curStart, curEnd).split('\n');
var numberRegex = (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) {
for (var i = 0; i < text.length; i++) {
if (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;
}
numPart.sort(compareFn);
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);
},
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 slashes = findUnescapedSlashes(argString);
if (slashes[0] !== 0) {
showConfirm(cm, 'Substitutions should be of the form ' +
':s/pattern/replace/');
return;
}
var regexPart = argString.substring(slashes[0] + 1, slashes[1]);
var replacePart = '';
var flagsPart;
var count;
var confirm = false; // Whether to confirm each replace.
if (slashes[1]) {
replacePart = argString.substring(slashes[1] + 1, slashes[2]);
}
if (slashes[2]) {
// After the 3rd slash, we can have flags followed by a space followed
// by count.
var trailing = argString.substring(slashes[2] + 1).split(' ');
flagsPart = trailing[0];
count = parseInt(trailing[1]);
}
if (flagsPart) {
if (flagsPart.indexOf('c') != -1) {
confirm = true;
flagsPart.replace('c', '');
}
regexPart = regexPart + '/' + 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;
}
}
var state = getSearchState(cm);
var query = state.getQuery();
var lineStart = (params.line !== undefined) ? params.line : cm.getCursor().line;
var lineEnd = params.lineEnd || lineStart;
if (count) {
lineStart = lineEnd;
lineEnd = lineStart + count - 1;
}
var startPos = clipCursorToContent(cm, { line: lineStart, ch: 0 });
var cursor = cm.getSearchCursor(query, startPos);
doReplace(cm, confirm, lineStart, lineEnd, cursor, query, replacePart);
},
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 {
// Saves to text area if no save command is defined.
cm.save();
}
},
nohlsearch: function(cm) {
clearSearchHighlight(cm);
},
delmarks: function(cm, params) {
if (!params.argString || !params.argString.trim()) {
showConfirm(cm, 'Argument required');
return;
}
var state = cm.state.vim;
var stream = new CodeMirror.StringStream(params.argString.trim());
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 Vim.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.
*/
function doReplace(cm, confirm, lineStart, lineEnd, searchCursor, query,
replaceWith) {
// Set up all the functions.
cm.state.vim.exMode = true;
var done = false;
var lastPos = searchCursor.from();
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);
searchCursor.replace(newText);
}
function next() {
var found = searchCursor.findNext();
if (!found) {
done = true;
} else if (isInRange(searchCursor.from(), lineStart, lineEnd)) {
cm.scrollIntoView(searchCursor.from(), 30);
cm.setSelection(searchCursor.from(), searchCursor.to());
lastPos = searchCursor.from();
done = false;
} else {
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;
}
}
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':
cm.operation(replaceAll); break;
case 'L':
replace();
// fall through and exit.
case 'Q':
case 'Esc':
case 'Ctrl-C':
case 'Ctrl-[':
stop(close);
break;
}
if (done) { stop(close); }
}
// Actually do replace.
next();
if (done) {
throw new Error('No matches for ' + query.source);
}
if (!confirm) {
replaceAll();
return;
}
showPrompt(cm, {
prefix: 'replace with <strong>' + replaceWith + '</strong> (y/n/a/q/l)',
onKeyDown: onPromptKeyDown
});
}
// Register Vim with CodeMirror
function buildVimKeyMap() {
/**
* Handle the raw key event from CodeMirror. Translate the
* Shift + key modifier to the resulting letter, while preserving other
* modifers.
*/
// TODO: Figure out a way to catch capslock.
function cmKeyToVimKey(key, modifier) {
var vimKey = key;
if (isUpperCase(vimKey)) {
// Convert to lower case if shift is not the modifier since the key
// we get from CodeMirror is always upper case.
if (modifier == 'Shift') {
modifier = null;
}
else {
vimKey = vimKey.toLowerCase();
}
}
if (modifier) {
// Vim will parse modifier+key combination as a single key.
vimKey = modifier.charAt(0) + '-' + vimKey;
}
var specialKey = ({Enter:'CR',Backspace:'BS',Delete:'Del'})[vimKey];
vimKey = specialKey ? specialKey : vimKey;
vimKey = vimKey.length > 1 ? '<'+ vimKey + '>' : vimKey;
return vimKey;
}
// Closure to bind CodeMirror, key, modifier.
function keyMapper(vimKey) {
return function(cm) {
CodeMirror.Vim.handleKey(cm, vimKey);
};
}
var cmToVimKeymap = {
'nofallthrough': true,
'disableInput': true,
'style': 'fat-cursor'
};
function bindKeys(keys, modifier) {
for (var i = 0; i < keys.length; i++) {
var key = keys[i];
if (!modifier && inArray(key, specialSymbols)) {
// Wrap special symbols with '' because that's how CodeMirror binds
// them.
key = "'" + key + "'";
}
var vimKey = cmKeyToVimKey(keys[i], modifier);
var cmKey = modifier ? modifier + '-' + key : key;
cmToVimKeymap[cmKey] = keyMapper(vimKey);
}
}
bindKeys(upperCaseAlphabet);
bindKeys(upperCaseAlphabet, 'Shift');
bindKeys(upperCaseAlphabet, 'Ctrl');
bindKeys(specialSymbols);
bindKeys(specialSymbols, 'Ctrl');
bindKeys(numbers);
bindKeys(numbers, 'Ctrl');
bindKeys(specialKeys);
bindKeys(specialKeys, 'Ctrl');
return cmToVimKeymap;
}
CodeMirror.keyMap.vim = buildVimKeyMap();
function exitInsertMode(cm) {
var vim = cm.state.vim;
var inReplay = vimGlobalState.macroModeState.inReplay;
if (!inReplay) {
cm.off('change', onChange);
cm.off('cursorActivity', onCursorActivity);
CodeMirror.off(cm.getInputField(), 'keydown', onKeyEventTargetKeyDown);
}
if (!inReplay && 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;
cm.setCursor(cm.getCursor().line, cm.getCursor().ch-1, true);
vim.insertMode = false;
cm.setOption('keyMap', 'vim');
cm.toggleOverwrite(false); // exit replace mode if we were in it.
CodeMirror.signal(cm, "vim-mode-change", {mode: "normal"});
}
CodeMirror.keyMap['vim-insert'] = {
// TODO: override navigation keys so that Esc will cancel automatic
// indentation from o, O, i_<CR>
'Esc': exitInsertMode,
'Ctrl-[': exitInsertMode,
'Ctrl-C': exitInsertMode,
'Ctrl-N': 'autocomplete',
'Ctrl-P': 'autocomplete',
'Enter': function(cm) {
var fn = CodeMirror.commands.newlineAndIndentContinueComment ||
CodeMirror.commands.newlineAndIndent;
fn(cm);
},
fallthrough: ['default']
};
CodeMirror.keyMap['vim-replace'] = {
'Backspace': 'goCharLeft',
fallthrough: ['vim-insert']
};
function parseRegisterToKeyBuffer(macroModeState, registerName) {
var match, key;
var register = vimGlobalState.registerController.getRegister(registerName);
var text = register.toString();
var macroKeyBuffer = macroModeState.macroKeyBuffer;
emptyMacroKeyBuffer(macroModeState);
do {
match = (/<\w+-.+?>|<\w+>|./).exec(text);
if(match === null)break;
key = match[0];
text = text.substring(match.index + key.length);
macroKeyBuffer.push(key);
} while (text);
return macroKeyBuffer;
}
function parseKeyBufferToRegister(registerName, keyBuffer) {
var text = keyBuffer.join('');
vimGlobalState.registerController.setRegisterText(registerName, text);
}
function emptyMacroKeyBuffer(macroModeState) {
if(macroModeState.isMacroPlaying)return;
var macroKeyBuffer = macroModeState.macroKeyBuffer;
macroKeyBuffer.length = 0;
}
function executeMacroKeyBuffer(cm, macroModeState, keyBuffer) {
macroModeState.isMacroPlaying = true;
for (var i = 0, len = keyBuffer.length; i < len; i++) {
CodeMirror.Vim.handleKey(cm, keyBuffer[i]);
};
macroModeState.isMacroPlaying = false;
}
function logKey(macroModeState, key) {
if(macroModeState.isMacroPlaying)return;
var macroKeyBuffer = macroModeState.macroKeyBuffer;
macroKeyBuffer.push(key);
}
/**
* 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;
while (changeObj) {
lastChange.expectCursorActivityForChange = true;
if (changeObj.origin == '+input' || changeObj.origin == 'paste'
|| changeObj.origin === undefined /* only in testing */) {
var text = changeObj.text.join('\n');
lastChange.changes.push(text);
}
// Change objects may be chained with next.
changeObj = changeObj.next;
}
}
/**
* Listens for any kind of cursor activity on CodeMirror.
* - For tracking cursor activity in insert mode.
* - Should only be active in insert mode.
*/
function onCursorActivity() {
var macroModeState = vimGlobalState.macroModeState;
var lastChange = macroModeState.lastInsertModeChanges;
if (lastChange.expectCursorActivityForChange) {
lastChange.expectCursorActivityForChange = false;
} else {
// Cursor moved outside the context of an edit. Reset the change.
lastChange.changes = [];
}
}
/** 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);
function onKeyFound() {
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.inReplay = 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 will does not repeat
// insert mode changes. Will conform to that behavior.
repeat = !vim.lastEditActionCommand ? 1 : repeat;
repeatLastInsertModeChanges(cm, repeat, macroModeState);
}
}
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.inReplay = false;
};
function repeatLastInsertModeChanges(cm, repeat, macroModeState) {
var lastChange = macroModeState.lastInsertModeChanges;
function keyHandler(binding) {
if (typeof binding == 'string') {
CodeMirror.commands[binding](cm);
} else {
binding(cm);
}
return true;
}
for (var i = 0; i < repeat; i++) {
for (var j = 0; j < lastChange.changes.length; j++) {
var change = lastChange.changes[j];
if (change instanceof InsertModeKey) {
CodeMirror.lookupKey(change.keyName, ['vim-insert'], keyHandler);
} else {
var cur = cm.getCursor();
cm.replaceRange(change, cur, cur);
}
}
}
}
resetVimGlobalState();
return vimApi;
};
// Initialize Vim and make it available as an API.
CodeMirror.Vim = Vim();
}
)();
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