Using csharp-mode and Mono

I'm using csharp-mode in Emacs 23 on OS X. I'd like to get the flymake syntax checking working but I'm not familiar enough 开发者_如何转开发with emacs lisp to know where to change things in the csharp-mode.el file to change the compiler. Any assistance would be appreciated.

If you add the following to your Emacs init file, that should do the job:

(add-hook  'csharp-mode-hook 'flymake-mode)

From EmacsWiki:

History The original flymake-for-csharp came from a Blog Post on MSDN. It has since been generalized, updated, and made more reliable and flexible. In May 2011, it was integrated into csharp-mode itself.

In order to change the compiler, you can add a comment at the top of your C# code:

// flymake: csc.exe /t:module /R:MyAssembly.dll @@FILE@@

For more detail on options for changing the compiler, see the comments in the csharp-mode.el source file (search for "csharp-flymake-get-cmdline").

EDIT: Ok, based on your comment below about not wanting to put the flymake comment line in your C# code, I've come up with an alternative solution. Put the following code in your Emacs init file. Change the (setq my-csharp-default-compiler "mono @@FILE@@") line to whatever compile line you want. Now, whenever you open a C# file, you should be able to use flymake without adding the comment line into your C# source. If, at some later stage, you want to use the standard csharp-mode mechanism (of looking for a flymake comment in the C# source file), you just have to change the statement to (setq my-csharp-default-compiler nil).

;; Basic code required for C# mode
(require 'flymake)
(autoload 'csharp-mode "csharp-mode" "Major mode for editing C# code." t)
(setq auto-mode-alist  (append '(("\\.cs$" . csharp-mode)) auto-mode-alist))

;; Custom code to use a default compiler string for all C# files
(defvar my-csharp-default-compiler nil)
(setq my-csharp-default-compiler "mono @@FILE@@")

(defun my-csharp-get-value-from-comments (marker-string line-limit)
  my-csharp-default-compiler)

(add-hook 'csharp-mode-hook (lambda ()
                              (if my-csharp-default-compiler
                                  (progn
                                    (fset 'orig-csharp-get-value-from-comments
                                          (symbol-function 'csharp-get-value-from-comments))
                                    (fset 'csharp-get-value-from-comments
                                          (symbol-function 'my-csharp-get-value-from-comments))))
                              (flymake-mode)))