A Sublime Text 3 package implementing Vim-like branching undo/redo.
- Total 141
- Win 51
- OS X 54
- Linux 36
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However, since Sublime Text doesn't have native support for branching undo like Vim, we had to build our own data structure—the
UndoTree is an N-ary tree containing nodes that represent a particular buffer state:
Each node contains, among other attributes, a map associating node IDs to patches). This means that, instead of having to store the entire buffer for each insertion (which often consists of small changes), we only need to store the information necessary to travel back and forth (in both the
parent → children and
child → parent directions). For example: if
A = 'Hello, world!' and
B = 'Bye, world!', the
A → B translation would be
[(-1, 'H'), (1, 'By'), (0, 'e'), (-1, 'llo'), (0, ', wo')]. In Python terms, we'd have:
>>> t = UndoTree() >>> t.insert('Hello, world!') >>> t.insert('Bye, world!') >>> t.text() 'Bye, world!' >>> t.undo() # (buffer, patch, cursor position) ('Hello, world!', '@@ -1,7 +1,9 @@\n+H\n-By\n e\n+llo\n , wo\n', None) >>> t.text() 'Hello, world!'
- Install Package Control.
- Bring up the Command Palette (Command-Shift-P on macOS and Ctrl-Shift-P on Linux/Windows).
Package Control: Install Packageand then select
Sublundowhen the list appears.
This package completely overrides the built-in
redo commands: whenever you undo or redo an edit, the
sublundo command is run instead. So, you should be able to edit, undo, and redo text as you normally would.
When you want to either visualize or navigate the
UndoTree, you invoke the
Sublundo: Visualize command and then use the following keys to move around:
- up (or k): Move up the current branch (i.e., invoke
- down (or j): Move down the current branch (i.e., invoke
- left (or h): Move to the next branch on the left.
- right (or l): Move to the next branch on the right.
For information on the available settings, see the default settings file.