| |
| |
|
|
| (function(mod) { |
| if (typeof exports == "object" && typeof module == "object") |
| mod(require("../../lib/codemirror")); |
| else if (typeof define == "function" && define.amd) |
| define(["../../lib/codemirror"], mod); |
| else |
| 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))) |
| } |
| }); |
|
|
