Skip to content


Subversion checkout URL

You can clone with
Download ZIP
Tools to ease the creation of snippets, syntax definitions, etc. for Sublime Text.
Python JavaScript PowerShell
Fetching latest commit...
Cannot retrieve the latest commit at this time.
Failed to load latest commit information.



status: beta


AAAPackageDev helps create and edit snippets, completions files, build systems and other Sublime Text extensions.

The general workflow looks like this:

  • run new_* command (new_raw_snippet, new_completions, new_syntax_def...)
  • edit file (with specific snippets, completions, higlighting, build systems...)
  • save file

AAAPackageDev new_* commands are typically accessible through the Command Palette (Ctrl+Shift+P).

Getting Started

  1. Download and install AAAPackageDev. (See installation instructions for .sublime-package files.)
  2. Access commands from Tools | Packages | Package Development or the Command Palette (Ctrl+Shift+P).

Syntax Definition Development

In AAAPackageDev, syntax definitions are written in JSON. Because Sublime Text uses .tmLanguage files, though, they need to be converted before use. The conversion is done through the included build system JSON to Property List.

Creating a New Syntax Definition

  1. Create new template (through Tools | Packages | Package Development) or the Command Palette
  2. Select JSON to Property List build system from Tools | Build System or leave as Automatic
  3. Press F7

Other included resources for syntax definition development:

  • Snippets

Package Development

Resources for package development are in a very early stage.


Window command. Prompts for a name and creates a new package skeleton in Packages.
Window command. Opens file browser at Packages.

Build System Development

  • Syntax definition for .build-system files.

Key Map Development

  • Syntax definition for .sublime-keymap files.
  • Completions
  • Snippets

Snippet Development

AAAPackageDev provides a means to edit snippets using snippets. These snippets are called raw snippets. You can use snippets and snippet-like syntax in many files, but if you want to create .sublime-snippet files, you need to convert raw snippets first. This converion is done with a command.

Inside AAAPackageDev/Support you will find a .sublime-keymap file. The key bindings in it are included for reference. If you want them to work, you need to copy the contents over to your personal .sublime-keymap file under Packages/User.

Creating Snippets

  1. Create new raw snippet with included commands (Tools | Packages | Package Development or Command Palette)
  2. Edit snippet
  3. If needed, convert to .sublime-snippet with included command

You can use raw snippets directly in some files, like .sublime-completions files.

Completions Development

  • Syntax definition for .sublime-completions files
  • Snippets

You can use raw snippets directly in the contents element of a trigger-based completion.

Settings File Development

  • Syntax definition for .sublime-settings files
  • Snippets

About Snippets in AAAPackageDev

The AAAPackageDev/Snippets folder contains many snippets for all kinds of development mentioned above. These snippets follow memorable rules to make their use easy.

The snippets used more often have short tab triggers like f (field), c (completion), k (key binding), etc. In cases where increasingly complex items of a similar kind might exist (numbered fields, fields with place holders and fields with substitutions in the case of snippets), their tab triggers will consist in a repeated character, like f, ff and fff.

As a rule of thumb, the more complex the snippet, the longer its tab trigger.

Also, i (for item) is often a generic synonym for the most common snippet

in a type of file. In such cases, ii and even longer tab triggers might work too for consistency.

Sublime Library

AAAPackageDev includes sublime_lib, a Python package with utilities for plugin developers. Once AAAPackageDev is installed, sublime_lib will be importable from any plugin residing in Packages.

Something went wrong with that request. Please try again.