EmacsでiOS開発(objective-c)するための環境構築 ref: http://qiita.com/fujimisakari/items/a6ff082f0e8eddc09511

file0.txt

;; iOS SDKへのPATH
(defvar xcode:sdk "/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk")

;; TABスペースは利用せず、半角スペースを4つにする(デフォルトのままでは2になってました)
(add-hook 'objc-mode-hook
          '(lambda()
             (setq c-basic-offset 4)
             (setq tab-width 4)
             (setq indent-tabs-mode nil)))

;; .hファイルもobjc-modeで開くけるようにする
(add-to-list 'magic-mode-alist
             `(,(lambda ()
                  (and (string= (file-name-extension buffer-file-name) "h")
                       (re-search-forward "@\\<interface\\>"
                                          magic-mode-regexp-match-limit t)))
               . objc-mode))

;; FoundationやUIKit等のFrameworkの.hファイルを検索対象に含めるようにする
(setq xcode:frameworks (concat xcode:sdk "/System/Library/Frameworks"))
(setq cc-search-directories (list xcode:frameworks))
(defadvice ff-get-file-name (around ff-get-file-name-framework
                                    (search-dirs
                                     fname-stub
                                     &optional suffix-list))
  "Search for Mac framework headers as well as POSIX headers."
  (or
   (if (string-match "\\(.*?\\)/\\(.*\\)" fname-stub)
       (let* ((framework (match-string 1 fname-stub))
              (header (match-string 2 fname-stub))
              (fname-stub (concat framework ".framework/Headers/" header)))
         ad-do-it))
   ad-do-it))
(ad-enable-advice 'ff-get-file-name 'around 'ff-get-file-name-framework)
(ad-activate 'ff-get-file-name)

;; 対になってる.hファイルと.mファイルをトグルできるようにする
(require 'find-file) ;; for the "cc-other-file-alist" variable
(nconc (cadr (assoc "\\.h\\'" cc-other-file-alist)) '(".m" ".mm"))
(define-key c-mode-base-map (kbd "C-c '") 'ff-find-other-file)

;; .hと.mを左右に並べて開く
(defun open-header-and-method-file ()
  (interactive)
  (other-window-or-split)
  (ff-find-other-file))
(define-key objc-mode-map (kbd "C-c ;") 'open-header-and-method-file)

file1.txt

$ brew install clang-format

file10.txt

$ cd ~/ios_project
$ find . -name "*.[hm]" -follow -print | /usr/local/bin/gtags --gtagslabel=pygments-parser -f - ./

file11.txt

(require 'gtags)
;; ファイル保存時にGTAGSを更新する
(setq gtags-auto-UPDATE t)

;; 相対pathで表示
(setq gtags-path-style 'relative)
;; (setq gtags-path-style 'absolute)

;; *GTAGS SELECT* のバッファは1つだけ生成する
(setq gtags-select-buffer-single t)

file12.txt

;;; flymakeでシンタックスチェック
(defvar flymake-objc-compiler (executable-find "clang"))
(defvar flymake-objc-compile-default-options (list "-D__IPHONE_OS_VERSION_MIN_REQUIRED=30200" "-fsyntax-only" "-fobjc-arc" "-fblocks" "-fno-color-diagnostics" "-Wreturn-type" "-Wparentheses" "-Wswitch" "-Wno-unused-parameter" "-Wunused-variable" "-Wunused-value" "-isysroot" xcode:sdk))
(defvar flymake-last-position nil)
(defcustom flymake-objc-compile-options '("-I.")
  "Compile option for objc check."
  :group 'flymake
  :type '(repeat (string)))

(defun flymake-objc-init ()
  (let* ((temp-file (flymake-init-create-temp-buffer-copy
                     'flymake-create-temp-inplace))
         (local-file (file-relative-name
                      temp-file
                      (file-name-directory buffer-file-name))))
    (list flymake-objc-compiler (append flymake-objc-compile-default-options flymake-objc-compile-options (list local-file)))))

(defun flymake-display-err-minibuffer ()
  (interactive)
  (let* ((line-no (flymake-current-line-no))
         (line-err-info-list
          (nth 0 (flymake-find-err-info flymake-err-info line-no)))
         (count (length line-err-info-list)))
    (while (> count 0)
      (when line-err-info-list
        (let* ((file (flymake-ler-file (nth (1- count) line-err-info-list)))
               (full-file (flymake-ler-full-file
                           (nth (1- count) line-err-info-list)))
               (text (flymake-ler-text (nth (1- count) line-err-info-list)))
               (line (flymake-ler-line (nth (1- count) line-err-info-list))))
          (message "[%s] %s" line text)))
      (setq count (1- count)))))

(defun flymake-display-err-minibuffer-safe ()
  (ignore-errors flymake-display-err-minibuffer))

;; もともとのパターンにマッチしなかったので追加
(setq flymake-err-line-patterns
      (cons
       '("\\(.+\\):\\([0-9]+\\):\\([0-9]+\\): \\(.+\\)" 1 2 3 4)
       flymake-err-line-patterns))

;; 拡張子 m と h に対して flymake を有効にする設定
(add-hook 'objc-mode-hook
          (lambda ()
            (push '("\\.m$" flymake-objc-init) flymake-allowed-file-name-masks)
            (push '("\\.h$" flymake-objc-init) flymake-allowed-file-name-masks)
            ;; 存在するファイルかつ書き込み可能ファイル時のみ flymake-mode を有効にします
            (if (and (not (null buffer-file-name)) (file-writable-p buffer-file-name))
                (flymake-mode t))))

file2.txt

(require 'clang-format)
;; 以下で整形スタイルを設定できます(defult: "file")
(setq clang-format-style "Google")
;; キーバインド指定
(define-key objc-mode-map (kbd "C-c ") 'clang-format-region)

file3.txt

;; quickrunにclangでの実行環境を追加しておきます
(add-to-list 'quickrun-file-alist '("\\.m$" . "objc/clang"))
(quickrun-add-command "objc/clang"
                      '((:command . "clang")
                        (:exec    . ("%c -fobjc-arc -framework Foundation %s -o %e" "%e"))
                        (:remove  . ("%e")))
                      :default "objc")

file4.txt

(require 'helm-xcdoc)
(setq helm-xcdoc-command-path "/Applications/Xcode.app/Contents/Developer/usr/bin/docsetutil")
(setq helm-xcdoc-document-path "~/Library/Developer/Shared/Documentation/DocSets/com.apple.adc.documentation.AppleiOS8.1.iOSLibrary.docset")
(define-key objc-mode-map (kbd "C-c d") 'helm-xcdoc-search-other-window)

(require 'popwin)
(push '("*eww*") popwin:special-display-config)

file5.txt

;; 'emaXcode設定
(require 'emaXcode)
(setq xcode:foundation (concat xcode:sdk "/System/Library/Frameworks/Foundation.framework/Headers/"))
(setq xcode:uikit (concat xcode:sdk "/System/Library/Frameworks/UIKit.framework/Headers/"))
(setq emaXcode-yas-objc-header-directories-list (list xcode:foundation xcode:uikit))

;; auto-complete設定
(ac-config-default)
;;ac-auto-startが整数値の場合、文字列の長さがac-auto-start以上になると自動補完開始
(setq ac-auto-start 3)

;; yasnippet設定
(require 'yasnippet)
(setq yas-snippet-dirs
      '("~/.emacs.d/share/snippets"))
(yas-global-mode 1)

;; (必須)最初にロードしておく
(yas-load-directory "~/.emacs.d/share/snippets")

;; ロードしていない場合、*.[mh]を開く時に始めてsnippetのloadが走ります。
;; 情報源(ac-source-emaXcode-yasnippet)の作成はsnippetのloadの前に
;; 行なわれますので空の情報源になってしまいます

file6.txt

$ brew install global --with-exuberant-ctags --with-pygments

file7.txt

$ sudo pip install pygments

file8.txt

$ vim ~/.ctags
--langdef=objc
--langmap=objc:.m.h
--regex-objc=/^[[:space:]]*[-+][[:space:]]*\([[:alpha:]]+[[:space:]]*\*?\)[[:space:]]*([[:alnum:]]+):[[:space:]]*\(/\1/m,method/
--regex-objc=/^[[:space:]]*[-+][[:space:]]*\([[:alpha:]]+[[:space:]]*\*?\)[[:space:]]*([[:alnum:]]+)[[:space:]]*\{/\1/m,method/
--regex-objc=/^[[:space:]]*[-+][[:space:]]*\([[:alpha:]]+[[:space:]]*\*?\)[[:space:]]*([[:alnum:]]+)[[:space:]]*\;/\1/m,method/
--regex-objc=/^[[:space:]]*\@property[[:space:]]+.*[[:space:]]+\*?(.*);$/\1/p,property/
--regex-objc=/^[[:space:]]*\@implementation[[:space:]]+(.*)$/\1/c,class/
--regex-objc=/^[[:space:]]*\@interface[[:space:]]+(.*)[[:space:]]+:.*{/\1/i,interface/

file9.txt

$ cd ~/ios_project
$ ln -s /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/System/Library/Frameworks frameworks