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(function() {
var count = "";
function pushCountDigit(digit) { return function(cm) {count += digit;} }
function popCount() { var i = parseInt(count); count = ""; return i || 1; }
function countTimes(func) {
if (typeof func == "string") func = CodeMirror.commands[func];
return function(cm) { for (var i = 0, c = popCount(); i < c; ++i) func(cm); }
}
function iterObj(o, f) {
for (var prop in o) if (o.hasOwnProperty(prop)) f(prop, o[prop]);
}
var word = [/\w/, /[^\w\s]/], bigWord = [/\S/];
function findWord(line, pos, dir, regexps) {
var stop = 0, next = -1;
if (dir > 0) { stop = line.length; next = 0; }
var start = stop, end = stop;
// Find bounds of next one.
outer: for (; pos != stop; pos += dir) {
for (var i = 0; i < regexps.length; ++i) {
if (regexps[i].test(line.charAt(pos + next))) {
start = pos;
for (; pos != stop; pos += dir) {
if (!regexps[i].test(line.charAt(pos + next))) break;
}
end = pos;
break outer;
}
}
}
return {from: Math.min(start, end), to: Math.max(start, end)};
}
function moveToWord(cm, regexps, dir, where) {
var cur = cm.getCursor(), ch = cur.ch, line = cm.getLine(cur.line), word;
while (true) {
word = findWord(line, ch, dir, regexps);
ch = word[where == "end" ? "to" : "from"];
if (ch == cur.ch && word.from != word.to) ch = word[dir < 0 ? "from" : "to"];
else break;
}
cm.setCursor(cur.line, word[where == "end" ? "to" : "from"], true);
}
var map = CodeMirror.keyMap.vim = {
"0": function(cm) {count.length > 0 ? pushCountDigit("0")(cm) : CodeMirror.commands.goLineStart(cm);},
"I": function(cm) {popCount(); cm.setOption("keyMap", "vim-insert");},
"G": function(cm) {cm.setOption("keyMap", "vim-prefix-g");},
catchall: function(cm) {/*ignore*/}
};
// Add bindings for number keys
for (var i = 1; i < 10; ++i) map[i] = pushCountDigit(i);
// Add bindings that are influenced by number keys
iterObj({"H": "goColumnLeft", "L": "goColumnRight", "J": "goLineDown", "K": "goLineUp",
"Left": "goColumnLeft", "Right": "goColumnRight", "Down": "goLineDown", "Up": "goLineUp",
"Backspace": "goCharLeft", "Space": "goCharRight",
"B": function(cm) {moveToWord(cm, word, -1, "end");},
"E": function(cm) {moveToWord(cm, word, 1, "end");},
"W": function(cm) {moveToWord(cm, word, 1, "start");},
"Shift-B": function(cm) {moveToWord(cm, bigWord, -1, "end");},
"Shift-E": function(cm) {moveToWord(cm, bigWord, 1, "end");},
"Shift-W": function(cm) {moveToWord(cm, bigWord, 1, "start");},
"U": "undo", "Ctrl-R": "redo", "Shift-4": "goLineEnd"},
function(key, cmd) { map[key] = countTimes(cmd); });
CodeMirror.keyMap["vim-prefix-g"] = {
"E": countTimes(function(cm) { moveToWord(cm, word, -1, "start");}),
"Shift-E": countTimes(function(cm) { moveToWord(cm, bigWord, -1, "start");}),
auto: "vim", catchall: function(cm) {/*ignore*/}
};
CodeMirror.keyMap["vim-insert"] = {
"Esc": function(cm) {cm.setOption("keyMap", "vim");},
fallthrough: ["default"]
};
})();
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