202 lines
7 KiB
JavaScript
202 lines
7 KiB
JavaScript
|
// CodeMirror, copyright (c) by Marijn Haverbeke and others
|
||
|
// Distributed under an MIT license: https://codemirror.net/LICENSE
|
||
|
|
||
|
(function(mod) {
|
||
|
if (typeof exports == "object" && typeof module == "object") // CommonJS
|
||
|
mod(require("../../lib/codemirror"));
|
||
|
else if (typeof define == "function" && define.amd) // AMD
|
||
|
define(["../../lib/codemirror"], mod);
|
||
|
else // Plain browser env
|
||
|
mod(CodeMirror);
|
||
|
})(function(CodeMirror) {
|
||
|
var defaults = {
|
||
|
pairs: "()[]{}''\"\"",
|
||
|
closeBefore: ")]}'\":;>",
|
||
|
triples: "",
|
||
|
explode: "[]{}"
|
||
|
};
|
||
|
|
||
|
var Pos = CodeMirror.Pos;
|
||
|
|
||
|
CodeMirror.defineOption("autoCloseBrackets", false, function(cm, val, old) {
|
||
|
if (old && old != CodeMirror.Init) {
|
||
|
cm.removeKeyMap(keyMap);
|
||
|
cm.state.closeBrackets = null;
|
||
|
}
|
||
|
if (val) {
|
||
|
ensureBound(getOption(val, "pairs"))
|
||
|
cm.state.closeBrackets = val;
|
||
|
cm.addKeyMap(keyMap);
|
||
|
}
|
||
|
});
|
||
|
|
||
|
function getOption(conf, name) {
|
||
|
if (name == "pairs" && typeof conf == "string") return conf;
|
||
|
if (typeof conf == "object" && conf[name] != null) return conf[name];
|
||
|
return defaults[name];
|
||
|
}
|
||
|
|
||
|
var keyMap = {Backspace: handleBackspace, Enter: handleEnter};
|
||
|
function ensureBound(chars) {
|
||
|
for (var i = 0; i < chars.length; i++) {
|
||
|
var ch = chars.charAt(i), key = "'" + ch + "'"
|
||
|
if (!keyMap[key]) keyMap[key] = handler(ch)
|
||
|
}
|
||
|
}
|
||
|
ensureBound(defaults.pairs + "`")
|
||
|
|
||
|
function handler(ch) {
|
||
|
return function(cm) { return handleChar(cm, ch); };
|
||
|
}
|
||
|
|
||
|
function getConfig(cm) {
|
||
|
var deflt = cm.state.closeBrackets;
|
||
|
if (!deflt || deflt.override) return deflt;
|
||
|
var mode = cm.getModeAt(cm.getCursor());
|
||
|
return mode.closeBrackets || deflt;
|
||
|
}
|
||
|
|
||
|
function handleBackspace(cm) {
|
||
|
var conf = getConfig(cm);
|
||
|
if (!conf || cm.getOption("disableInput")) return CodeMirror.Pass;
|
||
|
|
||
|
var pairs = getOption(conf, "pairs");
|
||
|
var ranges = cm.listSelections();
|
||
|
for (var i = 0; i < ranges.length; i++) {
|
||
|
if (!ranges[i].empty()) return CodeMirror.Pass;
|
||
|
var around = charsAround(cm, ranges[i].head);
|
||
|
if (!around || pairs.indexOf(around) % 2 != 0) return CodeMirror.Pass;
|
||
|
}
|
||
|
for (var i = ranges.length - 1; i >= 0; i--) {
|
||
|
var cur = ranges[i].head;
|
||
|
cm.replaceRange("", Pos(cur.line, cur.ch - 1), Pos(cur.line, cur.ch + 1), "+delete");
|
||
|
}
|
||
|
}
|
||
|
|
||
|
function handleEnter(cm) {
|
||
|
var conf = getConfig(cm);
|
||
|
var explode = conf && getOption(conf, "explode");
|
||
|
if (!explode || cm.getOption("disableInput")) return CodeMirror.Pass;
|
||
|
|
||
|
var ranges = cm.listSelections();
|
||
|
for (var i = 0; i < ranges.length; i++) {
|
||
|
if (!ranges[i].empty()) return CodeMirror.Pass;
|
||
|
var around = charsAround(cm, ranges[i].head);
|
||
|
if (!around || explode.indexOf(around) % 2 != 0) return CodeMirror.Pass;
|
||
|
}
|
||
|
cm.operation(function() {
|
||
|
var linesep = cm.lineSeparator() || "\n";
|
||
|
cm.replaceSelection(linesep + linesep, null);
|
||
|
moveSel(cm, -1)
|
||
|
ranges = cm.listSelections();
|
||
|
for (var i = 0; i < ranges.length; i++) {
|
||
|
var line = ranges[i].head.line;
|
||
|
cm.indentLine(line, null, true);
|
||
|
cm.indentLine(line + 1, null, true);
|
||
|
}
|
||
|
});
|
||
|
}
|
||
|
|
||
|
function moveSel(cm, dir) {
|
||
|
var newRanges = [], ranges = cm.listSelections(), primary = 0
|
||
|
for (var i = 0; i < ranges.length; i++) {
|
||
|
var range = ranges[i]
|
||
|
if (range.head == cm.getCursor()) primary = i
|
||
|
var pos = range.head.ch || dir > 0 ? {line: range.head.line, ch: range.head.ch + dir} : {line: range.head.line - 1}
|
||
|
newRanges.push({anchor: pos, head: pos})
|
||
|
}
|
||
|
cm.setSelections(newRanges, primary)
|
||
|
}
|
||
|
|
||
|
function contractSelection(sel) {
|
||
|
var inverted = CodeMirror.cmpPos(sel.anchor, sel.head) > 0;
|
||
|
return {anchor: new Pos(sel.anchor.line, sel.anchor.ch + (inverted ? -1 : 1)),
|
||
|
head: new Pos(sel.head.line, sel.head.ch + (inverted ? 1 : -1))};
|
||
|
}
|
||
|
|
||
|
function handleChar(cm, ch) {
|
||
|
var conf = getConfig(cm);
|
||
|
if (!conf || cm.getOption("disableInput")) return CodeMirror.Pass;
|
||
|
|
||
|
var pairs = getOption(conf, "pairs");
|
||
|
var pos = pairs.indexOf(ch);
|
||
|
if (pos == -1) return CodeMirror.Pass;
|
||
|
|
||
|
var closeBefore = getOption(conf,"closeBefore");
|
||
|
|
||
|
var triples = getOption(conf, "triples");
|
||
|
|
||
|
var identical = pairs.charAt(pos + 1) == ch;
|
||
|
var ranges = cm.listSelections();
|
||
|
var opening = pos % 2 == 0;
|
||
|
|
||
|
var type;
|
||
|
for (var i = 0; i < ranges.length; i++) {
|
||
|
var range = ranges[i], cur = range.head, curType;
|
||
|
var next = cm.getRange(cur, Pos(cur.line, cur.ch + 1));
|
||
|
if (opening && !range.empty()) {
|
||
|
curType = "surround";
|
||
|
} else if ((identical || !opening) && next == ch) {
|
||
|
if (identical && stringStartsAfter(cm, cur))
|
||
|
curType = "both";
|
||
|
else if (triples.indexOf(ch) >= 0 && cm.getRange(cur, Pos(cur.line, cur.ch + 3)) == ch + ch + ch)
|
||
|
curType = "skipThree";
|
||
|
else
|
||
|
curType = "skip";
|
||
|
} else if (identical && cur.ch > 1 && triples.indexOf(ch) >= 0 &&
|
||
|
cm.getRange(Pos(cur.line, cur.ch - 2), cur) == ch + ch) {
|
||
|
if (cur.ch > 2 && /\bstring/.test(cm.getTokenTypeAt(Pos(cur.line, cur.ch - 2)))) return CodeMirror.Pass;
|
||
|
curType = "addFour";
|
||
|
} else if (identical) {
|
||
|
var prev = cur.ch == 0 ? " " : cm.getRange(Pos(cur.line, cur.ch - 1), cur)
|
||
|
if (!CodeMirror.isWordChar(next) && prev != ch && !CodeMirror.isWordChar(prev)) curType = "both";
|
||
|
else return CodeMirror.Pass;
|
||
|
} else if (opening && (next.length === 0 || /\s/.test(next) || closeBefore.indexOf(next) > -1)) {
|
||
|
curType = "both";
|
||
|
} else {
|
||
|
return CodeMirror.Pass;
|
||
|
}
|
||
|
if (!type) type = curType;
|
||
|
else if (type != curType) return CodeMirror.Pass;
|
||
|
}
|
||
|
|
||
|
var left = pos % 2 ? pairs.charAt(pos - 1) : ch;
|
||
|
var right = pos % 2 ? ch : pairs.charAt(pos + 1);
|
||
|
cm.operation(function() {
|
||
|
if (type == "skip") {
|
||
|
moveSel(cm, 1)
|
||
|
} else if (type == "skipThree") {
|
||
|
moveSel(cm, 3)
|
||
|
} else if (type == "surround") {
|
||
|
var sels = cm.getSelections();
|
||
|
for (var i = 0; i < sels.length; i++)
|
||
|
sels[i] = left + sels[i] + right;
|
||
|
cm.replaceSelections(sels, "around");
|
||
|
sels = cm.listSelections().slice();
|
||
|
for (var i = 0; i < sels.length; i++)
|
||
|
sels[i] = contractSelection(sels[i]);
|
||
|
cm.setSelections(sels);
|
||
|
} else if (type == "both") {
|
||
|
cm.replaceSelection(left + right, null);
|
||
|
cm.triggerElectric(left + right);
|
||
|
moveSel(cm, -1)
|
||
|
} else if (type == "addFour") {
|
||
|
cm.replaceSelection(left + left + left + left, "before");
|
||
|
moveSel(cm, 1)
|
||
|
}
|
||
|
});
|
||
|
}
|
||
|
|
||
|
function charsAround(cm, pos) {
|
||
|
var str = cm.getRange(Pos(pos.line, pos.ch - 1),
|
||
|
Pos(pos.line, pos.ch + 1));
|
||
|
return str.length == 2 ? str : null;
|
||
|
}
|
||
|
|
||
|
function stringStartsAfter(cm, pos) {
|
||
|
var token = cm.getTokenAt(Pos(pos.line, pos.ch + 1))
|
||
|
return /\bstring/.test(token.type) && token.start == pos.ch &&
|
||
|
(pos.ch == 0 || !/\bstring/.test(cm.getTokenTypeAt(pos)))
|
||
|
}
|
||
|
});
|