EmacsでUnity開発(c#)するための環境構築 ref: http://qiita.com/fujimisakari/items/d043a2fae31ed740e290

csharp-checker.sh

#! /bin/bash

# シンタックスチェック
/usr/bin/mcs -r:/Applications/Unity/Unity.app/Contents/Frameworks/Managed/UnityEngine.dll,/Applications/Unity/Unity.app/Contents/Frameworks/Managed/UnityEditor.dll,~/projects/proj1/Library/ScriptAssemblies/Assembly-CSharp.dll,~/projects/proj1/Library/ScriptAssemblies/Assembly-CSharp-Editor.dll $1 -target:library
dll_file=`echo $1 | sed -e "s/\.cs/.dll/"`
ls ${dll_file} && rm ${dll_file}

# コードスタイルチェック
/usr/bin/mono ~/.emacs.d/bin/StyleCopCLI.exe -cs $PWD/$1 -out /tmp/stylecop.log
# エラーとして扱いたくないものは、grepに追加していく
cat /tmp/stylecop.log | sed -e "s/\"//g" | sed -e "s/>/ /g" | grep -v "SA1001\|SA1202\|SA15013"
ls $PWD/StyleCop.Cache && rm $PWD/StyleCop.Cache

csharp-mode.el

@@ -5561,8 +5561,8 @@ Key bindings:
         ;; `imenu-generic-expression'; imenu will do a "generic scan" for you.
         ;; csharp-mode uses the former method.
         ;;
-        (setq imenu-create-index-function 'csharp-imenu-create-index)
-        (imenu-add-menubar-index)))
+        (setq imenu-create-index-function 'csharp-imenu-create-index)))
+        ;; (imenu-add-menubar-index)))

file3.txt

/usr/bin/mcs -r:ライブラリpath $1 -target:Library

file4.txt

System.Console.WriteLine("hoge");  // flymakeでは正常扱い
tem.Console.WriteLine("hoge");     // flymakeでは正常扱い
Sys tem.Console.WriteLine("hoge"); // flymakeでは異常扱い

my-csharp-mode.el

(require 'csharp-mode)
(setq auto-mode-alist
   (append '(("\\.cs$" . csharp-mode)) auto-mode-alist))

;; C#モードフック
(add-hook 'csharp-mode-hook
          '(lambda()
             (setq comment-column 40)
             (setq c-basic-offset 4)
             ;; (font-lock-add-magic-number)
             ;; オフセットの調整
             (c-set-offset 'substatement-open 0)
             (c-set-offset 'case-label '+)
             (c-set-offset 'arglist-intro '+)
             (c-set-offset 'arglist-close 0)
             (hl-line-mode)
             (auto-complete-mode)
             (flymake-mode)
             )
          )

;; Gtags設定
(require 'gtags)
(global-set-key (kbd "C-'") 'gtags-find-tag-other-window)  ; (別バッファで)関数の定義元(関数の実体)へジャンプ
(global-set-key (kbd "C-M-'") 'gtags-find-tag)             ; 変数等のジャンプ

;; Flymake
(defun flymake-csharp-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 "~/.emacs.d/bin/csharp-checker" (list local-file))))
(add-to-list 'flymake-allowed-file-name-masks
             '("\\.cs$" flymake-csharp-init))
(add-to-list 'flymake-err-line-patterns
             '("cs\(\\([0-9]+\\),\\([0-9]+\\)\)\: \\(error\\|warning\\) \\(.+\\)$" nil 1 2 4))
(add-to-list 'flymake-err-line-patterns
             '("LineNumber=\\([0-9]+\\) .* RuleId=\\(.+\\)</Violation" nil 1 1 2))

update_gtags.sh

#!/bin/bash

PROJ1=$HOME/projects/proj1
PROJ2=$HOME/projects/proj2
for project_path in ${PROJ1} ${PROJ2}
do
    cd $project_path
    rm GPATH GRTAGS GTAGS
    find . -name "*.cs" -follow -print | /usr/local/bin/gtags --gtagslabel=plugin-example -f -
done