| (function() { |
| var DEFAULT_BRACKETS = "()[]{}''\"\""; |
| var SPACE_CHAR_REGEX = /\s/; |
| |
| CodeMirror.defineOption("autoCloseBrackets", false, function(cm, val, old) { |
| var wasOn = old && old != CodeMirror.Init; |
| if (val && !wasOn) |
| cm.addKeyMap(buildKeymap(typeof val == "string" ? val : DEFAULT_BRACKETS)); |
| else if (!val && wasOn) |
| cm.removeKeyMap("autoCloseBrackets"); |
| }); |
| |
| function buildKeymap(pairs) { |
| var map = { |
| name : "autoCloseBrackets", |
| Backspace: function(cm) { |
| if (cm.somethingSelected()) return CodeMirror.Pass; |
| var cur = cm.getCursor(), line = cm.getLine(cur.line); |
| if (cur.ch && cur.ch < line.length && |
| pairs.indexOf(line.slice(cur.ch - 1, cur.ch + 1)) % 2 == 0) |
| cm.replaceRange("", CodeMirror.Pos(cur.line, cur.ch - 1), CodeMirror.Pos(cur.line, cur.ch + 1)); |
| else |
| return CodeMirror.Pass; |
| } |
| }; |
| var closingBrackets = []; |
| for (var i = 0; i < pairs.length; i += 2) (function(left, right) { |
| if (left != right) closingBrackets.push(right); |
| function surround(cm) { |
| var selection = cm.getSelection(); |
| cm.replaceSelection(left + selection + right); |
| } |
| function maybeOverwrite(cm) { |
| var cur = cm.getCursor(), ahead = cm.getRange(cur, CodeMirror.Pos(cur.line, cur.ch + 1)); |
| if (ahead != right || cm.somethingSelected()) return CodeMirror.Pass; |
| else cm.execCommand("goCharRight"); |
| } |
| map["'" + left + "'"] = function(cm) { |
| if (cm.somethingSelected()) return surround(cm); |
| if (left == right && maybeOverwrite(cm) != CodeMirror.Pass) return; |
| var cur = cm.getCursor(), ahead = CodeMirror.Pos(cur.line, cur.ch + 1); |
| var line = cm.getLine(cur.line), nextChar = line.charAt(cur.ch); |
| if (line.length == cur.ch || closingBrackets.indexOf(nextChar) >= 0 || SPACE_CHAR_REGEX.test(nextChar)) |
| cm.replaceSelection(left + right, {head: ahead, anchor: ahead}); |
| else |
| return CodeMirror.Pass; |
| }; |
| if (left != right) map["'" + right + "'"] = maybeOverwrite; |
| })(pairs.charAt(i), pairs.charAt(i + 1)); |
| return map; |
| } |
| })(); |