From 05a3dce9d45db976fe0199f315468c0822d15b24 Mon Sep 17 00:00:00 2001
From: Lennart Kats <lclkats@gmail.com>
Date: Mon, 12 Nov 2012 11:16:25 +0100
Subject: [PATCH] Insert a closing bracket for { inside other brackets, e.g.
 ({})

---
 build                            |  2 +-
 lib/ace/mode/behaviour/cstyle.js | 47 +++++++++++++++++++-------------
 2 files changed, 29 insertions(+), 20 deletions(-)

diff --git a/build b/build
index 6149ca6b..86abb023 160000
--- a/build
+++ b/build
@@ -1 +1 @@
-Subproject commit 6149ca6b148e878d4c1341d4675ca3597d78dbdd
+Subproject commit 86abb02339499ac96f95649ad5e088e66b6b9a9c
diff --git a/lib/ace/mode/behaviour/cstyle.js b/lib/ace/mode/behaviour/cstyle.js
index e9ae064a..99bb9f74 100644
--- a/lib/ace/mode/behaviour/cstyle.js
+++ b/lib/ace/mode/behaviour/cstyle.js
@@ -34,19 +34,21 @@ define(function(require, exports, module) {
 var oop = require("../../lib/oop");
 var Behaviour = require("../behaviour").Behaviour;
 var TokenIterator = require("../../token_iterator").TokenIterator;
+var lang = require("ace/lib/lang");
 
 var SAFE_INSERT_IN_TOKENS =
     ["text", "paren.rparen", "punctuation.operator"];
 var SAFE_INSERT_BEFORE_TOKENS =
     ["text", "paren.rparen", "punctuation.operator", "comment"];
 
+
 var autoInsertedBrackets = 0;
 var autoInsertedRow = -1;
 var autoInsertedLineEnd = "";
 var maybeInsertedBrackets = 0;
 var maybeInsertedRow = -1;
+var maybeInsertedLineStart = "";
 var maybeInsertedLineEnd = "";
-var maybeInserted = "";
 
 var CstyleBehaviour = function () {
     
@@ -86,12 +88,12 @@ var CstyleBehaviour = function () {
     CstyleBehaviour.recordMaybeInsert = function(editor, session, bracket) {
         var cursor = editor.getCursorPosition();
         var line = session.doc.getLine(cursor.row);
-        if (!this.isMaybeInsertedClosing(cursor, line, maybeInsertedLineEnd[0]))
+        if (!this.isMaybeInsertedClosing(cursor, line))
             maybeInsertedBrackets = 0;
         maybeInsertedRow = cursor.row;
+        maybeInsertedLineStart = line.substr(0, cursor.column) + bracket;
         maybeInsertedLineEnd = line.substr(cursor.column);
         maybeInsertedBrackets++;
-        maybeInserted = bracket + maybeInserted;
     };
     
     CstyleBehaviour.isAutoInsertedClosing = function(cursor, line, bracket) {
@@ -104,7 +106,8 @@ var CstyleBehaviour = function () {
     CstyleBehaviour.isMaybeInsertedClosing = function(cursor, line) {
         return maybeInsertedBrackets > 0 &&
             cursor.row === maybeInsertedRow &&
-            line.substr(cursor.column) === maybeInsertedLineEnd;
+            line.substr(cursor.column) === maybeInsertedLineEnd &&
+            line.substr(0, cursor.column) == maybeInsertedLineStart;
     };
     
     CstyleBehaviour.popAutoInsertedClosing = function() {
@@ -114,10 +117,12 @@ var CstyleBehaviour = function () {
     
     CstyleBehaviour.clearMaybeInsertedClosing = function() {
         maybeInsertedBrackets = 0;
-        maybeInserted = "";
+        maybeInsertedRow = -1;
     };
 
     this.add("braces", "insertion", function (state, action, editor, session, text) {
+        var cursor = editor.getCursorPosition();
+        var line = session.doc.getLine(cursor.row);
         if (text == '{') {
             var selection = editor.getSelectionRange();
             var selected = session.doc.getTextRange(selection);
@@ -127,15 +132,20 @@ var CstyleBehaviour = function () {
                     selection: false
                 };
             } else if (CstyleBehaviour.isSaneInsertion(editor, session)) {
-                CstyleBehaviour.recordMaybeInsert(editor, session, "}");
-                return {
-                    text: '{',
-                    selection: [1, 1]
-                };
+                if (/[\]\}\)]/.test(line[cursor.column])) {
+                    return {
+                        text: '{}',
+                        selection: [1, 1]
+                    };
+                } else {
+                    CstyleBehaviour.recordMaybeInsert(editor, session, "{");
+                    return {
+                        text: '{',
+                        selection: [1, 1]
+                    };
+                }
             }
         } else if (text == '}') {
-            var cursor = editor.getCursorPosition();
-            var line = session.doc.getLine(cursor.row);
             var rightChar = line.substring(cursor.column, cursor.column + 1);
             if (rightChar == '}') {
                 var matching = session.$findOpeningBracket('}', {column: cursor.column + 1, row: cursor.row});
@@ -148,22 +158,19 @@ var CstyleBehaviour = function () {
                 }
             }
         } else if (text == "\n" || text == "\r\n") {
-            var cursor = editor.getCursorPosition();
-            var line = session.doc.getLine(cursor.row);
             var closing = "";
             if (CstyleBehaviour.isMaybeInsertedClosing(cursor, line)) {
-                console.log("doit");
-                closing = maybeInserted;
+                closing = lang.stringRepeat("}", maybeInsertedBrackets);
                 CstyleBehaviour.clearMaybeInsertedClosing();
             }
             var rightChar = line.substring(cursor.column, cursor.column + 1);
             if (rightChar == '}' || closing !== "") {
-                var openBracePos = session.findMatchingBracket({row: cursor.row, column: cursor.column + 1}, '}');
+                var openBracePos = session.findMatchingBracket({row: cursor.row, column: cursor.column}, '}');
                 if (!openBracePos)
                      return null;
 
-                var indent = this.getNextLineIndent(state, line.substring(0, line.length - 1), session.getTabString());
-                var next_indent = this.$getIndent(session.doc.getLine(openBracePos.row));
+                var indent = this.getNextLineIndent(state, line.substring(0, cursor.column), session.getTabString());
+                var next_indent = this.$getIndent(line);
 
                 return {
                     text: '\n' + indent + '\n' + next_indent + closing,
@@ -181,6 +188,8 @@ var CstyleBehaviour = function () {
             if (rightChar == '}') {
                 range.end.column++;
                 return range;
+            } else {
+                maybeInsertedBrackets--;
             }
         }
     });