From 8dbb84f44d3f4cdecde25e910277ca1816f80a24 Mon Sep 17 00:00:00 2001
From: Vincent Woo <me@vincentwoo.com>
Date: Fri, 13 Mar 2015 04:08:41 -0700
Subject: [PATCH] [sublime keymap] Add sublime-style smart backspace
---
keymap/sublime.js | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/keymap/sublime.js b/keymap/sublime.js
index 45936c36..2b49f1ae 100644
--- a/keymap/sublime.js
+++ b/keymap/sublime.js
@@ -409,6 +409,22 @@
map[cK + ctrl + "Backspace"] = "delLineLeft";
+ cmds[map["Backspace"] = "smartBackspace"] = function(cm) {
+ if (cm.somethingSelected()) {
+ return CodeMirror.Pass;
+ }
+
+ var tabSize = cm.getOption('tabSize');
+ var cursor = cm.getCursor();
+ var toStartOfLine = cm.getRange({line: cursor.line, ch: 0}, cursor);
+ var column = CodeMirror.countColumn(toStartOfLine, null, tabSize);
+
+ if (/^\s+$/.test(toStartOfLine) && column % tabSize == 0) {
+ return cm.indentSelection('subtract');
+ }
+ return CodeMirror.Pass;
+ };
+
cmds[map[cK + ctrl + "K"] = "delLineRight"] = function(cm) {
cm.operation(function() {
var ranges = cm.listSelections();
--
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