| 1 | ;;; guile-scheme.el --- Guile Scheme editing mode |
| 2 | |
| 3 | ;; Copyright (C) 2001, 2006 Free Software Foundation, Inc. |
| 4 | |
| 5 | ;;;; This library is free software; you can redistribute it and/or |
| 6 | ;;;; modify it under the terms of the GNU Lesser General Public |
| 7 | ;;;; License as published by the Free Software Foundation; either |
| 8 | ;;;; version 3 of the License, or (at your option) any later version. |
| 9 | ;;;; |
| 10 | ;;;; This library is distributed in the hope that it will be useful, |
| 11 | ;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | ;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | ;;;; Lesser General Public License for more details. |
| 14 | ;;;; |
| 15 | ;;;; You should have received a copy of the GNU Lesser General Public |
| 16 | ;;;; License along with this library; if not, write to the Free |
| 17 | ;;;; Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 18 | ;;;; 02111-1307 USA |
| 19 | |
| 20 | ;;; Commentary: |
| 21 | |
| 22 | ;; Put the following lines in your ~/.emacs: |
| 23 | ;; |
| 24 | ;; (require 'guile-scheme) |
| 25 | ;; (setq initial-major-mode 'scheme-interaction-mode) |
| 26 | |
| 27 | ;;; Code: |
| 28 | |
| 29 | (require 'guile) |
| 30 | (require 'scheme) |
| 31 | |
| 32 | (defgroup guile-scheme nil |
| 33 | "Editing Guile-Scheme code" |
| 34 | :group 'lisp) |
| 35 | |
| 36 | (defvar guile-scheme-syntax-keywords |
| 37 | '((begin 0) (if 1) (cond 0) (case 1) (do 2) |
| 38 | quote syntax lambda and or else delay receive use-modules |
| 39 | (match 1) (match-lambda 0) (match-lambda* 0) |
| 40 | (let scheme-let-indent) (let* 1) (letrec 1) (and-let* 1) |
| 41 | (let-syntax 1) (letrec-syntax 1) (syntax-rules 1) (syntax-case 2))) |
| 42 | |
| 43 | (defvar guile-scheme-special-procedures |
| 44 | '((catch 1) (lazy-catch 1) (stack-catch 1) |
| 45 | map for-each (dynamic-wind 3))) |
| 46 | |
| 47 | ;; set indent functions |
| 48 | (dolist (x (append guile-scheme-syntax-keywords |
| 49 | guile-scheme-special-procedures)) |
| 50 | (when (consp x) |
| 51 | (put (car x) 'scheme-indent-function (cadr x)))) |
| 52 | |
| 53 | (defconst guile-scheme-font-lock-keywords |
| 54 | (eval-when-compile |
| 55 | (list |
| 56 | (list (concat "(\\(define\\*?\\(" |
| 57 | ;; Function names. |
| 58 | "\\(\\|-public\\|-method\\|-generic\\)\\|" |
| 59 | ;; Macro names, as variable names. |
| 60 | "\\(-syntax\\|-macro\\)\\|" |
| 61 | ;; Others |
| 62 | "-\\sw+\\)\\)\\>" |
| 63 | ;; Any whitespace and declared object. |
| 64 | "\\s *(?\\(\\sw+\\)?") |
| 65 | '(1 font-lock-keyword-face) |
| 66 | '(5 (cond ((match-beginning 3) font-lock-function-name-face) |
| 67 | ((match-beginning 4) font-lock-variable-name-face) |
| 68 | (t font-lock-type-face)) nil t)) |
| 69 | (list (concat |
| 70 | "(" (regexp-opt |
| 71 | (mapcar (lambda (e) |
| 72 | (prin1-to-string (if (consp e) (car e) e))) |
| 73 | (append guile-scheme-syntax-keywords |
| 74 | guile-scheme-special-procedures)) 'words)) |
| 75 | '(1 font-lock-keyword-face)) |
| 76 | '("<\\sw+>" . font-lock-type-face) |
| 77 | '("\\<:\\sw+\\>" . font-lock-builtin-face) |
| 78 | )) |
| 79 | "Expressions to highlight in Guile Scheme mode.") |
| 80 | |
| 81 | \f |
| 82 | ;;; |
| 83 | ;;; Guile Scheme mode |
| 84 | ;;; |
| 85 | |
| 86 | (defvar guile-scheme-mode-map nil |
| 87 | "Keymap for Guile Scheme mode. |
| 88 | All commands in `lisp-mode-shared-map' are inherited by this map.") |
| 89 | |
| 90 | (unless guile-scheme-mode-map |
| 91 | (let ((map (make-sparse-keymap "Guile-Scheme"))) |
| 92 | (setq guile-scheme-mode-map map) |
| 93 | (cond ((boundp 'lisp-mode-shared-map) |
| 94 | (set-keymap-parent map lisp-mode-shared-map)) |
| 95 | ((boundp 'shared-lisp-mode-map) |
| 96 | (set-keymap-parent map shared-lisp-mode-map))) |
| 97 | (define-key map [menu-bar] (make-sparse-keymap)) |
| 98 | (define-key map [menu-bar guile-scheme] (cons "Guile-Scheme" map)) |
| 99 | (define-key map [uncomment-region] |
| 100 | '("Uncomment Out Region" . (lambda (beg end) |
| 101 | (interactive "r") |
| 102 | (comment-region beg end '(4))))) |
| 103 | (define-key map [comment-region] '("Comment Out Region" . comment-region)) |
| 104 | (define-key map [indent-region] '("Indent Region" . indent-region)) |
| 105 | (define-key map [indent-line] '("Indent Line" . lisp-indent-line)) |
| 106 | (define-key map "\e\C-i" 'guile-scheme-complete-symbol) |
| 107 | (define-key map "\e\C-x" 'guile-scheme-eval-define) |
| 108 | (define-key map "\C-x\C-e" 'guile-scheme-eval-last-sexp) |
| 109 | (define-key map "\C-c\C-b" 'guile-scheme-eval-buffer) |
| 110 | (define-key map "\C-c\C-r" 'guile-scheme-eval-region) |
| 111 | (define-key map "\C-c:" 'guile-scheme-eval-expression) |
| 112 | (define-key map "\C-c\C-a" 'guile-scheme-apropos) |
| 113 | (define-key map "\C-c\C-d" 'guile-scheme-describe) |
| 114 | (define-key map "\C-c\C-k" 'guile-scheme-kill-process) |
| 115 | |
| 116 | (put 'comment-region 'menu-enable 'mark-active) |
| 117 | (put 'uncomment-region 'menu-enable 'mark-active) |
| 118 | (put 'indent-region 'menu-enable 'mark-active))) |
| 119 | |
| 120 | (defcustom guile-scheme-mode-hook nil |
| 121 | "Normal hook run when entering `guile-scheme-mode'." |
| 122 | :type 'hook |
| 123 | :group 'guile-scheme) |
| 124 | |
| 125 | ;;;###autoload |
| 126 | (defun guile-scheme-mode () |
| 127 | "Major mode for editing Guile Scheme code. |
| 128 | Editing commands are similar to those of `scheme-mode'. |
| 129 | |
| 130 | \\{scheme-mode-map} |
| 131 | Entry to this mode calls the value of `scheme-mode-hook' |
| 132 | if that value is non-nil." |
| 133 | (interactive) |
| 134 | (kill-all-local-variables) |
| 135 | (setq mode-name "Guile Scheme") |
| 136 | (setq major-mode 'guile-scheme-mode) |
| 137 | (use-local-map guile-scheme-mode-map) |
| 138 | (scheme-mode-variables) |
| 139 | (setq mode-line-process |
| 140 | '(:eval (if (processp guile-scheme-adapter) |
| 141 | (format " [%s]" guile-scheme-command) |
| 142 | ""))) |
| 143 | (setq font-lock-defaults |
| 144 | '((guile-scheme-font-lock-keywords) |
| 145 | nil t (("+-*/.<>=!?$%_&~^:@" . "w")) beginning-of-defun |
| 146 | (font-lock-mark-block-function . mark-defun))) |
| 147 | (run-hooks 'guile-scheme-mode-hook)) |
| 148 | |
| 149 | \f |
| 150 | ;;; |
| 151 | ;;; Scheme interaction mode |
| 152 | ;;; |
| 153 | |
| 154 | (defvar scheme-interaction-mode-map () |
| 155 | "Keymap for Scheme Interaction mode. |
| 156 | All commands in `guile-scheme-mode-map' are inherited by this map.") |
| 157 | |
| 158 | (unless scheme-interaction-mode-map |
| 159 | (let ((map (make-sparse-keymap))) |
| 160 | (setq scheme-interaction-mode-map map) |
| 161 | (set-keymap-parent map guile-scheme-mode-map) |
| 162 | (define-key map "\C-j" 'guile-scheme-eval-print-last-sexp) |
| 163 | )) |
| 164 | |
| 165 | (defvar scheme-interaction-mode-hook nil |
| 166 | "Normal hook run when entering `scheme-interaction-mode'.") |
| 167 | |
| 168 | (defun scheme-interaction-mode () |
| 169 | "Major mode for evaluating Scheme expressions with Guile. |
| 170 | |
| 171 | \\{scheme-interaction-mode-map}" |
| 172 | (interactive) |
| 173 | (guile-scheme-mode) |
| 174 | (use-local-map scheme-interaction-mode-map) |
| 175 | (setq major-mode 'scheme-interaction-mode) |
| 176 | (setq mode-name "Scheme Interaction") |
| 177 | (run-hooks 'scheme-interaction-mode-hook)) |
| 178 | |
| 179 | \f |
| 180 | ;;; |
| 181 | ;;; Guile Scheme adapter |
| 182 | ;;; |
| 183 | |
| 184 | (defvar guile-scheme-command "guile") |
| 185 | (defvar guile-scheme-adapter nil) |
| 186 | (defvar guile-scheme-module nil) |
| 187 | |
| 188 | (defun guile-scheme-adapter () |
| 189 | (if (and (processp guile-scheme-adapter) |
| 190 | (eq (process-status guile-scheme-adapter) 'run)) |
| 191 | guile-scheme-adapter |
| 192 | (setq guile-scheme-module nil) |
| 193 | (setq guile-scheme-adapter |
| 194 | (guile:make-adapter guile-scheme-command 'emacs-scheme-channel)))) |
| 195 | |
| 196 | (defun guile-scheme-set-module () |
| 197 | "Set the current module based on buffer contents. |
| 198 | If there is a (define-module ...) form, evaluate it. |
| 199 | Otherwise, choose module (guile-user)." |
| 200 | (save-excursion |
| 201 | (let ((module (if (re-search-backward "^(define-module " nil t) |
| 202 | (let ((start (match-beginning 0))) |
| 203 | (goto-char start) |
| 204 | (forward-sexp) |
| 205 | (buffer-substring-no-properties start (point))) |
| 206 | "(define-module (emacs-user))"))) |
| 207 | (unless (string= guile-scheme-module module) |
| 208 | (prog1 (guile:eval module (guile-scheme-adapter)) |
| 209 | (setq guile-scheme-module module)))))) |
| 210 | |
| 211 | (defun guile-scheme-eval-string (string) |
| 212 | (guile-scheme-set-module) |
| 213 | (guile:eval string (guile-scheme-adapter))) |
| 214 | |
| 215 | (defun guile-scheme-display-result (value flag) |
| 216 | (if (string= value "#<unspecified>") |
| 217 | (setq value "done")) |
| 218 | (if flag |
| 219 | (insert value) |
| 220 | (message "%s" value))) |
| 221 | |
| 222 | \f |
| 223 | ;;; |
| 224 | ;;; Interactive commands |
| 225 | ;;; |
| 226 | |
| 227 | (defun guile-scheme-eval-expression (string) |
| 228 | "Evaluate the expression in STRING and show value in echo area." |
| 229 | (interactive "SGuile Scheme Eval: ") |
| 230 | (guile-scheme-display-result (guile-scheme-eval-string string) nil)) |
| 231 | |
| 232 | (defun guile-scheme-eval-region (start end) |
| 233 | "Evaluate the region as Guile Scheme code." |
| 234 | (interactive "r") |
| 235 | (guile-scheme-eval-expression (buffer-substring-no-properties start end))) |
| 236 | |
| 237 | (defun guile-scheme-eval-buffer () |
| 238 | "Evaluate the current buffer as Guile Scheme code." |
| 239 | (interactive) |
| 240 | (guile-scheme-eval-expression (buffer-string))) |
| 241 | |
| 242 | (defun guile-scheme-eval-last-sexp (arg) |
| 243 | "Evaluate sexp before point; show value in echo area. |
| 244 | With argument, print output into current buffer." |
| 245 | (interactive "P") |
| 246 | (guile-scheme-display-result |
| 247 | (guile-scheme-eval-string |
| 248 | (buffer-substring-no-properties |
| 249 | (point) (save-excursion (backward-sexp) (point)))) arg)) |
| 250 | |
| 251 | (defun guile-scheme-eval-print-last-sexp () |
| 252 | "Evaluate sexp before point; print value into current buffer." |
| 253 | (interactive) |
| 254 | (let ((start (point))) |
| 255 | (guile-scheme-eval-last-sexp t) |
| 256 | (insert "\n") |
| 257 | (save-excursion (goto-char start) (insert "\n")))) |
| 258 | |
| 259 | (defun guile-scheme-eval-define () |
| 260 | (interactive) |
| 261 | (guile-scheme-eval-region (save-excursion (end-of-defun) (point)) |
| 262 | (save-excursion (beginning-of-defun) (point)))) |
| 263 | |
| 264 | (defun guile-scheme-load-file (file) |
| 265 | "Load a Guile Scheme file." |
| 266 | (interactive "fGuile Scheme load file: ") |
| 267 | (guile-scheme-eval-string (format "(load %s)" (expand-file-name file))) |
| 268 | (message "done")) |
| 269 | |
| 270 | (guile-import guile-emacs-complete-alist) |
| 271 | |
| 272 | (defun guile-scheme-complete-symbol () |
| 273 | (interactive) |
| 274 | (let* ((end (point)) |
| 275 | (start (save-excursion (skip-syntax-backward "w_") (point))) |
| 276 | (pattern (buffer-substring-no-properties start end)) |
| 277 | (alist (guile-emacs-complete-alist pattern))) |
| 278 | (goto-char end) |
| 279 | (let ((completion (try-completion pattern alist))) |
| 280 | (cond ((eq completion t)) |
| 281 | ((not completion) |
| 282 | (message "Can't find completion for \"%s\"" pattern) |
| 283 | (ding)) |
| 284 | ((not (string= pattern completion)) |
| 285 | (delete-region start end) |
| 286 | (insert completion)) |
| 287 | (t |
| 288 | (message "Making completion list...") |
| 289 | (with-output-to-temp-buffer "*Completions*" |
| 290 | (display-completion-list alist)) |
| 291 | (message "Making completion list...done")))))) |
| 292 | |
| 293 | (guile-import guile-emacs-apropos) |
| 294 | |
| 295 | (defun guile-scheme-apropos (regexp) |
| 296 | (interactive "sGuile Scheme apropos (regexp): ") |
| 297 | (guile-scheme-set-module) |
| 298 | (with-output-to-temp-buffer "*Help*" |
| 299 | (princ (guile-emacs-apropos regexp)))) |
| 300 | |
| 301 | (guile-import guile-emacs-describe) |
| 302 | |
| 303 | (defun guile-scheme-describe (symbol) |
| 304 | (interactive (list (guile-scheme-input-symbol "Describe Guile variable"))) |
| 305 | (guile-scheme-set-module) |
| 306 | (with-output-to-temp-buffer "*Help*" |
| 307 | (princ (guile-emacs-describe symbol)))) |
| 308 | |
| 309 | (defun guile-scheme-kill-process () |
| 310 | (interactive) |
| 311 | (if guile-scheme-adapter |
| 312 | (guile-process-kill guile-scheme-adapter)) |
| 313 | (setq guile-scheme-adapter nil)) |
| 314 | |
| 315 | \f |
| 316 | ;;; |
| 317 | ;;; Internal functions |
| 318 | ;;; |
| 319 | |
| 320 | (guile-import apropos-internal guile-apropos-internal) |
| 321 | |
| 322 | (defvar guile-scheme-complete-table (make-vector 151 nil)) |
| 323 | |
| 324 | (defun guile-scheme-input-symbol (prompt) |
| 325 | (mapc (lambda (sym) |
| 326 | (if (symbolp sym) |
| 327 | (intern (symbol-name sym) guile-scheme-complete-table))) |
| 328 | (guile-apropos-internal "")) |
| 329 | (let* ((str (thing-at-point 'symbol)) |
| 330 | (default (if (intern-soft str guile-scheme-complete-table) |
| 331 | (concat " (default " str ")") |
| 332 | ""))) |
| 333 | (intern (completing-read (concat prompt default ": ") |
| 334 | guile-scheme-complete-table nil t nil nil str)))) |
| 335 | |
| 336 | \f |
| 337 | ;;; |
| 338 | ;;; Turn on guile-scheme-mode for .scm files by default. |
| 339 | ;;; |
| 340 | |
| 341 | (setq auto-mode-alist |
| 342 | (cons '("\\.scm\\'" . guile-scheme-mode) auto-mode-alist)) |
| 343 | |
| 344 | (provide 'guile-scheme) |
| 345 | |
| 346 | ;;; guile-scheme.el ends here |