| | 1 | The following .emacs excerpt was mostly provided by Robert Lupton. The intent was to help coders comply with the IPP coding standards. |
| | 2 | |
| | 3 | ;; |
| | 4 | ;; Support code for the Pan-STARRS C coding standards |
| | 5 | ;; |
| | 6 | ;; The basic tool is a "panstarrs-c" mode derived from c-mode. |
| | 7 | ;; |
| | 8 | ;; To activate, add: |
| | 9 | ;; (add-to-list 'auto-mode-alist (cons "\\.[ch]$" 'panstarrs-c-mode)) |
| | 10 | ;; to your .emacs file |
| | 11 | ;; |
| | 12 | ;; You might want to copy some of these add-hook lines to your .emacs file too: |
| | 13 | ;; (add-hook 'panstarrs-c-mode-hook 'panstarrs-c99-comments) |
| | 14 | ;; (add-hook 'panstarrs-c-mode-hook 'panstarrs-set-width) |
| | 15 | ;; (add-hook 'panstarrs-c-mode-hook |
| | 16 | ;; '(lambda () |
| | 17 | ;; (set (make-variable-buffer-local 'comment-indent-function) |
| | 18 | ;; 'panstarrs-comment-indent))) |
| | 19 | ;; These respectively: |
| | 20 | ;; use C99-style comments (i.e. // to end of line) |
| | 21 | ;; have your emacs window set to 110 characters wide |
| | 22 | ;; somewhat improve (or spoil?) the handling of re-indenting comments |
| | 23 | (define-derived-mode panstarrs-c-mode |
| | 24 | c-mode "Pan-STARRS C" |
| | 25 | "Major mode for editing Pan-STARRS C source. |
| | 26 | \\{panstarrs-c-mode-map} |
| | 27 | " |
| | 28 | |
| | 29 | (let ( (our-mode-name mode-name) ) |
| | 30 | (c-mode) ; get correct font-lock behaviour |
| | 31 | (setq mode-name our-mode-name)) ; keep our desired name |
| | 32 | |
| | 33 | (setq c-default-style '((other . "k&r"))) |
| | 34 | (setq c-basic-offset 4) |
| | 35 | |
| | 36 | (setq comment-column 40) |
| | 37 | (setq fill-column 110) |
| | 38 | |
| | 39 | (add-to-list 'c-offsets-alist (cons 'statement-case-intro 2)) |
| | 40 | (add-to-list 'c-offsets-alist (cons 'statement-case-open 2)) |
| | 41 | (add-to-list 'c-offsets-alist (cons 'case-label 2))) |
| | 42 | ;; |
| | 43 | ;; Various useful commands for writing panstarrs code |
| | 44 | ;; |
| | 45 | (defun panstarrs-c99-comments () |
| | 46 | "Use C99-style // comments" |
| | 47 | (setq comment-start "// ") |
| | 48 | (setq comment-end "")) |
| | 49 | ;; |
| | 50 | (defun panstarrs-set-width () |
| | 51 | "Set frame width to fill-column + 1 ( + 1 to allow for wrap column)" |
| | 52 | (set-frame-width default-minibuffer-frame (1+ fill-column))) |
| | 53 | ;; |
| | 54 | ;; |
| | 55 | (defun panstarrs-comment-indent (&optional delete) |
| | 56 | "Make ESC; indent new comments to comment-column even if previous line |
| | 57 | has a comment indented further to the right" |
| | 58 | |
| | 59 | (interactive "p") |
| | 60 | (let ( (indent (c-comment-indent)) ) |
| | 61 | (if (> indent comment-column) |
| | 62 | (save-excursion |
| | 63 | (beginning-of-line) |
| | 64 | (if (not (looking-at (concat "^[ \t]*" comment-start))) |
| | 65 | (setq indent comment-column)))) |
| | 66 | indent)) |
| | 67 | ;; END support code for the Pan-STARRS C coding standards |
| | 68 | |
| | 69 | ;; Remove tabs from files, from http://www.jwz.org/doc/tabs-vs-spaces.html |
| | 70 | (defun panstarrs-mode-untabify () |
| | 71 | (save-excursion |
| | 72 | (goto-char (point-min)) |
| | 73 | (while (re-search-forward "[ \t]+$" nil t) |
| | 74 | (delete-region (match-beginning 0) (match-end 0))) |
| | 75 | (goto-char (point-min)) |
| | 76 | (if (search-forward "\t" nil t) |
| | 77 | (untabify (1- (point)) (point-max)))) |
| | 78 | nil) |
| | 79 | |
| | 80 | ;; Activate Pan-STARRS coding standard stuff. |
| | 81 | (add-to-list 'auto-mode-alist (cons "\\.[ch]$" 'panstarrs-c-mode)) |
| | 82 | (add-hook 'panstarrs-c-mode-hook 'panstarrs-c99-comments) |
| | 83 | (add-hook 'panstarrs-c-mode-hook 'panstarrs-set-width) |
| | 84 | (add-hook 'panstarrs-c-mode-hook |
| | 85 | '(lambda () |
| | 86 | (set (make-variable-buffer-local 'comment-indent-function) |
| | 87 | 'panstarrs-comment-indent))) |
| | 88 | (add-hook 'panstarrs-c-mode-hook |
| | 89 | '(lambda () |
| | 90 | (make-local-variable 'write-contents-hooks) |
| | 91 | (add-hook 'write-contents-hooks 'panstarrs-mode-untabify))) |
| | 92 | |
| | 93 | ;; Untabify Perl code as well. |
| | 94 | (add-hook 'perl-mode-hook |
| | 95 | '(lambda () |
| | 96 | (make-local-variable 'write-contents-hooks) |
| | 97 | (add-hook 'write-contents-hooks 'panstarrs-mode-untabify))) |