Emacs for Objective-C, Xcode

auto-complete + yasnippet

helm + yasnippet

Environment

I don't care other than this environment. Additionary, I change this package on a whim.

• Mac OSX 10.8.5 (MBPR2012)
• Xcode 5.1.1
• Emacs Cocoa 24.3.1 (from Homebrew)

Requirement

As of May 26 2014, these are latest package

• auto-complete.el 1.4.0
• yasnippet.el 0.8.0
• helm.el 1.5.6
• s.el 1.9.0

Simple premise setting for each requirement

Load requirements in this order.

auto-complete

(require 'auto-complete-config)
(ac-config-default)
(setq ac-use-menu-map t)

yasnippet

(require 'yasnippet)
(setq yas-snippet-dirs "~/.emacs.d/lib/snippet") ;; for example
(yas-global-mode 1)
(setq yas-trigger-key (kbd "TAB"))
(yas--initialize)

helm

(require 'helm-config)
(helm-mode 1)

This package

(require 'emaXcode)

Convert messages from Apple's header files to yasnippet

Extract about 4,460 messages/functions from header directories (Foundation.framework, UIKit.framework), and convert them to a yasnippet file .yas-compiled-snippets.el with your existing snippets in objc-mode folder.

If header directory paths changed by Xcode's upgrade, set correct paths list to emaXcode-yas-objc-header-directories-list.

M-x emaXcode-yas-get-objc-messages-from-header-files

After this converting done, .yas-compiled-snippets.el is generated at your objc-mode snippets directory. Restart Emacs, and open Objective-C file. You would realize that it takes a while to load a huge yasnippet file, but is only once.

Switch between header and implementation files

M-x emaXcode-open-corresponding-file

Make new files subclassing from NSObject

M-x emaXcode-make-new-files-subclass-of-NSObject

helm + yasnippet

• insert snippet: M-x yas-insert-snippet
• visit & edit snippet: M-x emaXcode-helm-yas-visit-snippet-file
• make new snippet from the region: M-x emaXcode-yas-new-snippet-from-region

Reference

• http://sakito.jp/emacs/emacsobjectivec.html