1 ;; geiser-racket.el -- geiser support for Racket scheme
3 ;; Copyright (C) 2009, 2010, 2011, 2012 Jose Antonio Ortega Ruiz
5 ;; This program is free software; you can redistribute it and/or
6 ;; modify it under the terms of the Modified BSD License. You should
7 ;; have received a copy of the license along with this program. If
8 ;; not, see <http://www.xfree86.org/3.3.6/COPYRIGHT2.html#5>.
10 ;; Start date: Sat Apr 25, 2009 21:13
14 (require 'geiser-edit
)
16 (require 'geiser-eval
)
17 (require 'geiser-image
)
18 (require 'geiser-syntax
)
19 (require 'geiser-custom
)
20 (require 'geiser-base
)
26 (defgroup geiser-racket nil
27 "Customization for Geiser's Racket flavour."
30 (geiser-custom--defcustom geiser-racket-binary
31 (cond ((eq system-type
'windows-nt
) "Racket.exe")
33 "Name to use to call the racket executable when starting a REPL."
34 :type
'(choice string
(repeat string
))
35 :group
'geiser-racket
)
37 (geiser-custom--defcustom geiser-racket-gracket-binary
38 (cond ((eq system-type
'windows-nt
) "GRacket-text.exe")
40 "Name to use to call the gracket executable when starting a REPL.
41 This executable is used by `run-gracket', and, if
42 `geiser-racket-use-gracket-p' is set to t, by `run-racket'."
43 :type
'(choice string
(repeat string
))
44 :group
'geiser-racket
)
46 (geiser-custom--defcustom geiser-racket-collects nil
47 "A list of paths to be added to racket's collection directories."
49 :group
'geiser-racket
)
51 (geiser-custom--defcustom geiser-racket-init-file
"~/.racket-geiser"
52 "Initialization file with user code for the racket REPL."
54 :group
'geiser-racket
)
56 (geiser-custom--defcustom geiser-racket-use-gracket-p nil
57 "Whether to use the gracket binary to start Racket REPLs."
59 :group
'geiser-racket
)
61 (geiser-custom--defcustom geiser-racket-extra-keywords
62 '("define-syntax-rule" "provide" "require"
63 "unless" "when" "with-handlers")
64 "Extra keywords highlighted in Racket buffers."
65 :type
'(repeat string
)
66 :group
'geiser-racket
)
71 (defsubst geiser-racket--real-binary
()
72 (if geiser-racket-use-gracket-p
73 geiser-racket-gracket-binary
74 geiser-racket-binary
))
76 (defun geiser-racket--binary ()
77 (let ((binary (geiser-racket--real-binary)))
78 (if (listp binary
) (car binary
) binary
)))
80 (defun geiser-racket--parameters ()
81 "Return a list with all parameters needed to start racket.
82 This function uses `geiser-racket-init-file' if it exists."
83 (let ((init-file (and (stringp geiser-racket-init-file
)
84 (expand-file-name geiser-racket-init-file
)))
85 (binary (geiser-racket--real-binary))
86 (rackdir (expand-file-name "racket/" geiser-scheme-dir
)))
89 ,@(apply 'append
(mapcar (lambda (p) (list "-S" p
))
90 geiser-racket-collects
))
91 ,@(and (listp binary
) (cdr binary
))
92 ,@(and init-file
(file-readable-p init-file
) (list "-f" init-file
))
93 "-f" ,(expand-file-name "geiser/startup.rkt" rackdir
))))
95 (defconst geiser-racket--prompt-regexp
"\\(mzscheme\\|racket\\)@[^ ]*?> ")
97 (defun geiser-racket--startup (remote)
98 (if geiser-image-cache-dir
99 (geiser-eval--send/wait
100 `(:eval
(image-cache ,geiser-image-cache-dir
) geiser
/user
))
101 (setq geiser-image-cache-dir
102 (geiser-eval--send/result
'(:eval
(image-cache) geiser
/user
)))))
107 (defun connect-to-racket ()
108 "Start a Racket REPL connected to a remote process.
110 The remote process needs to be running a REPL server started
111 using start-geiser, a procedure in the geiser/server module."
113 (geiser-connect 'racket
))
117 ;;; Evaluation support:
119 (defun geiser-racket--language ()
121 (goto-char (point-min))
122 (if (re-search-forward
123 "^\\(?:#lang\\|(module +[^ ]+?\\) +\\([^ ]+?\\|([^)]+)\\) *$" nil t
)
124 (car (geiser-syntax--read-from-string (match-string-no-properties 1)))
127 (defun geiser-racket--enter-command (module)
128 (when (stringp module
)
129 (cond ((zerop (length module
)) ",enter #f")
130 ((file-name-absolute-p module
) (format ",enter %S" module
))
131 (t (format ",enter %s" module
)))))
133 (defun geiser-racket--geiser-procedure (proc &rest args
)
136 (format ",geiser-eval %s %s %s"
138 (geiser-racket--language)
139 (mapconcat 'identity
(cdr args
) " ")))
140 ((load-file compile-file
)
141 (format ",geiser-eval geiser/main racket (geiser:%s %s)"
143 ((no-values) ",geiser-no-values")
144 (t (format ",apply geiser:%s (%s)" proc
(mapconcat 'identity args
" ")))))
146 (defconst geiser-racket--module-re
147 "^(module +\\([^ ]+\\)")
149 (defun geiser-racket--explicit-module ()
151 (goto-char (point-min))
152 (and (re-search-forward geiser-racket--module-re nil t
)
154 (car (geiser-syntax--read-from-string
155 (match-string-no-properties 1)))))))
157 (defsubst geiser-racket--implicit-module
()
159 (goto-char (point-min))
160 (if (re-search-forward "^#lang " nil t
)
164 (defun geiser-racket--get-module (&optional module
)
165 (cond ((and (null module
) (buffer-file-name)))
166 ;; (geiser-racket--explicit-module)
167 ((null module
) (geiser-racket--implicit-module))
168 ((symbolp module
) module
)
169 ((and (stringp module
) (file-name-absolute-p module
)) module
)
170 ((stringp module
) (make-symbol module
))
173 (defun geiser-racket--symbol-begin (module)
174 (save-excursion (skip-syntax-backward "^-()>") (point)))
176 (defun geiser-racket--import-command (module)
177 (and (stringp module
)
178 (not (zerop (length module
)))
179 (format "(require %s)" module
)))
181 (defun geiser-racket--exit-command ()
183 (get-buffer-process (current-buffer)))
185 (defconst geiser-racket--binding-forms
186 '("for" "for/list" "for/hash" "for/hasheq" "for/and" "for/or"
187 "for/lists" "for/first" "for/last" "for/fold"
188 "for:" "for/list:" "for/hash:" "for/hasheq:" "for/and:" "for/or:"
189 "for/lists:" "for/first:" "for/last:" "for/fold:"
190 "define-syntax-rule"))
192 (defconst geiser-racket--binding-forms
*
193 '("for*" "for*/list" "for*/lists" "for*/hash" "for*/hasheq" "for*/and"
194 "for*/or" "for*/first" "for*/last" "for*/fold"
195 "for*:" "for*/list:" "for*/lists:" "for*/hash:" "for*/hasheq:" "for*/and:"
196 "for*/or:" "for*/first:" "for*/last:" "for*/fold:"))
200 (defsubst geiser-racket--get-help
(symbol module
)
201 (geiser-eval--send/wait
202 `(:eval
(get-help ',symbol
'(:module
,module
)) geiser
/autodoc
)))
204 (defun geiser-racket--external-help (id module
)
205 (message "Looking up manual for '%s'..." id
)
206 (let ((out (geiser-eval--retort-output
207 (geiser-racket--get-help id module
))))
208 (when (and out
(string-match " but provided by:\n +\\(.+\\)\n" out
))
209 (geiser-racket--get-help id
(match-string 1 out
))))
210 (minibuffer-message "%s done" (current-message))
216 (defconst geiser-racket--file-rxs
218 "path:\"?\\([^>\"\n]+\\)\"?>"
219 "module: \"\\([^>\"\n]+\\)\""))
221 (defconst geiser-racket--geiser-file-rx
222 (format "^%s/?racket/geiser" (regexp-quote geiser-scheme-dir
)))
224 (defun geiser-racket--purge-trace ()
226 (while (re-search-forward geiser-racket--geiser-file-rx nil t
)
229 (defun geiser-racket--display-error (module key msg
)
232 (geiser-doc--insert-button key nil
'racket
)
239 (when key
(geiser-racket--purge-trace))
240 (mapc 'geiser-edit--buttonize-files geiser-racket--file-rxs
)
243 (or key
(not (zerop (length msg
)))))
246 ;;; Trying to ascertain whether a buffer is mzscheme scheme:
248 (defun geiser-racket--guess ()
250 (goto-char (point-min))
251 (re-search-forward "#lang " nil t
))
252 (geiser-racket--explicit-module)))
255 ;;; Keywords and syntax
256 (defun geiser-racket--keywords ()
257 (append '(("^#lang\\>" .
0)
258 ("\\[\\(else\\)\\>" .
1))
259 (when geiser-racket-extra-keywords
260 `((,(format "[[(]%s\\>" (regexp-opt geiser-racket-extra-keywords
1))
263 (geiser-syntax--scheme-indent
266 (splicing-let-values 1)
267 (splicing-letrec-values 1)
268 (splicing-let-syntax 1)
269 (splicing-letrec-syntax 1)
270 (splicing-let-syntaxes 1)
271 (splicing-letrec-syntaxes 1)
272 (splicing-letrec-syntaxes+values
1)
305 ;;; Implementation definition:
307 (define-geiser-implementation racket
308 (unsupported-procedures '(callers callees generic-methods
))
309 (binary geiser-racket--binary
)
310 (arglist geiser-racket--parameters
)
311 (repl-startup geiser-racket--startup
)
312 (prompt-regexp geiser-racket--prompt-regexp
)
313 (marshall-procedure geiser-racket--geiser-procedure
)
314 (find-module geiser-racket--get-module
)
315 (enter-command geiser-racket--enter-command
)
316 (import-command geiser-racket--import-command
)
317 (exit-command geiser-racket--exit-command
)
318 (find-symbol-begin geiser-racket--symbol-begin
)
319 (display-error geiser-racket--display-error
)
320 (external-help geiser-racket--external-help
)
321 (check-buffer geiser-racket--guess
)
322 (keywords geiser-racket--keywords
)
323 (binding-forms geiser-racket--binding-forms
)
324 (binding-forms* geiser-racket--binding-forms
*))
326 (geiser-impl--add-to-alist 'regexp
"\\.ss$" 'racket t
)
327 (geiser-impl--add-to-alist 'regexp
"\\.rkt$" 'racket t
)
329 (defun run-gracket ()
330 "Start the Racket REPL using gracket instead of plain racket."
332 (let ((geiser-racket-use-gracket-p t
))
336 (provide 'geiser-racket
)