Clarify write-contents-hooks.
[bpt/emacs.git] / lisp / autoinsert.el
CommitLineData
c0274f38 1;;; autoinsert.el --- automatic mode-dependent insertion of text into new files
c11af8a5 2;; Copyright (C) 1985, 1986, 1987, 1994, 1995 Free Software Foundation, Inc.
9750e079 3
e5167999 4;; Author: Charlie Martin <crm@cs.duke.edu>
c11af8a5 5;; Adapted-By: Daniel.Pfeiffer@Informatik.START.dbp.de, fax (+49 69) 7588-2389
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6
7;; This file is part of GNU Emacs.
8
9;; GNU Emacs is free software; you can redistribute it and/or modify
10;; it under the terms of the GNU General Public License as published by
e5167999 11;; the Free Software Foundation; either version 2, or (at your option)
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12;; any later version.
13
14;; GNU Emacs is distributed in the hope that it will be useful,
15;; but WITHOUT ANY WARRANTY; without even the implied warranty of
16;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17;; GNU General Public License for more details.
18
19;; You should have received a copy of the GNU General Public License
20;; along with GNU Emacs; see the file COPYING. If not, write to
21;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
22
e5167999 23;;; Commentary:
b1d6ae0b 24
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25;; The following defines an association list for text to be
26;; automatically inserted when a new file is created, and a function
27;; which automatically inserts these files; the idea is to insert
28;; default text much as the mode is automatically set using
29;; auto-mode-alist.
30;;
31;; To use:
32;; (add-hook 'find-file-hooks 'auto-insert)
33;; setq auto-insert-directory to an appropriate slash-terminated value
34;;
35;; Author: Charlie Martin
36;; Department of Computer Science and
37;; National Biomedical Simulation Resource
38;; Box 3709
39;; Duke University Medical Center
40;; Durham, NC 27710
41;; (crm@cs.duke.edu,mcnc!duke!crm)
b1d6ae0b 42
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43;;; Code:
44
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45(defvar auto-insert 'not-modified
46 "*Controls automatic insertion into newly found empty files:
47 nil do nothing
48 t insert if possible
49 other insert if possible, but mark as unmodified.
50Insertion is possible when something appropriate is found in
51`auto-insert-alist'. When the insertion is marked as unmodified, you can
52save it with \\[write-file] RET.
53This variable is used when `auto-insert' is called as a function, e.g.
54when you do (add-hook 'find-file-hooks 'auto-insert).
55With \\[auto-insert], this is always treated as if it were `t'.")
56
57
58(defvar auto-insert-query 'function
59 "*If non-`nil', ask user before auto-inserting.
60When this is `function', only ask when called non-interactively.")
61
62
63(defvar auto-insert-prompt "Perform %s auto-insertion? "
64 "*Prompt to use when querying whether to auto-insert.
65If this contains a %s, that will be replaced by the matching rule.")
66
67
68(defvar auto-insert-alist
69 '((("\\.\\([Hh]\\|hh\\|hpp\\)\\'" . "C / C++ header")
70 (upcase (concat (file-name-nondirectory
71 (substring buffer-file-name 0 (match-beginning 0)))
72 "_"
73 (substring buffer-file-name (1+ (match-beginning 0)))))
74 "#ifndef " str \n
75 "#define " str "\n\n"
76 _ "\n\n#endif")
77
78 (("\\.\\([Cc]\\|cc\\|cpp\\)\\'" . "C / C++ program")
79 nil
80 "#include \""
81 ;; nop without latest cc-mode
82 (and (fboundp 'c-companion-file)
83 ;(file-readable-p (c-companion-file 'name))
84 (file-name-nondirectory (c-companion-file 'name))) & ?\"
85 | -10)
86
87 ("[Mm]akefile\\'" . "makefile.inc")
88
89 ("\\.html\\'"
90 nil
91 "<html>\n"
92 "<head>\n"
93 "<title>" _ "</title>\n"
94 "</head>\n"
95 "<body>\n\n"
96 "</body>\n"
97 "</html>")
98
99 (plain-tex-mode . "tex-insert.tex")
100 (bibtex-mode . "tex-insert.tex")
101 (latex-mode
102 ;; should try to offer completing read for these
103 "options, RET: "
104 "\\documentstyle[" str & ?\] | -1
105 ?{ (read-string "class: ") "}\n"
106 ("package, %s: "
107 "\\usepackage[" (read-string "options, RET: ") & ?\] | -1 ?{ str "}\n")
108 _ "\n\\begin{document}\n" _
109 "\n\\end{document}")
110
111 (("/bin/.*[^/]\\'" . "Shell-Script mode magic number")
112 lambda ()
113 (if (eq major-mode default-major-mode)
114 (sh-mode)))
115
116 (ada-mode . ada-header)
117
118 (("\\.el\\'" . "Emacs Lisp header")
119 "Short description: "
120 ";;; " (file-name-nondirectory (buffer-file-name)) " --- " str "
121
122;; Copyright (C) " (substring (current-time-string) -4) " by "
123 (getenv "ORGANIZATION") | "Free Software Foundation, Inc." "
124
125;; Author: " (user-full-name)
126'(if (search-backward "&" (save-excursion (beginning-of-line 1) (point)) t)
127 (replace-match (capitalize (user-login-name)) t t))
128'(end-of-line 1) " <" (user-login-name) ?@ (system-name) ">
129;; Keywords: "
130 '(require 'finder)
131 ;;'(setq v1 (apply 'vector (mapcar 'car finder-known-keywords)))
132 '(setq v1 (mapcar (lambda (x) (list (symbol-name (car x))))
133 finder-known-keywords)
134 v2 (mapconcat (lambda (x) (format "%10.0s: %s" (car x) (cdr x)))
135 finder-known-keywords
136 "\n"))
137 ((let ((minibuffer-help-form v2))
138 (completing-read "Keyword, C-h: " v1 nil t))
139 str ", ") & -2 "
140
141;; This file is part of GNU Emacs.
142
143;; GNU Emacs is free software; you can redistribute it and/or modify
144;; it under the terms of the GNU General Public License as published by
145;; the Free Software Foundation; either version 2, or (at your option)
146;; any later version.
147
148;; GNU Emacs is distributed in the hope that it will be useful,
149;; but WITHOUT ANY WARRANTY; without even the implied warranty of
150;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
151;; GNU General Public License for more details.
152
153;; You should have received a copy of the GNU General Public License
154;; along with GNU Emacs; see the file COPYING. If not, write to
155;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
156
157;;; Commentary:
158
159;; " _ "
160
161;;; Code:
162
163
164
165;;; " (file-name-nondirectory (buffer-file-name)) " ends here"))
b1d6ae0b 166 "A list specifying text to insert by default into a new file.
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167Elements look like (CONDITION . ACTION) or ((CONDITION . DESCRIPTION) . ACTION).
168CONDITION maybe a regexp that must match the new file's name, or it may be
169a symbol that must match the major mode for this element to apply.
170Only the first matching element is effective.
171Optional DESCRIPTION is a string for filling `auto-insert-prompt'.
172ACTION may be a skeleton to insert (see `skeleton-insert'), an absolute
173file-name or one relative to `auto-insert-directory' or a function to call.
174ACTION may also be a vector containing several successive single actions as
175described above, e.g. [\"header.insert\" date-and-author-update].")
b1d6ae0b 176
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177
178;; Establish a default value for auto-insert-directory
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179(defvar auto-insert-directory "~/insert/"
180 "*Directory from which auto-inserted files are taken.")
181
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182
183;;;###autoload
184(defun auto-insert ()
185 "Insert default contents into a new file if `auto-insert' is non-nil.
b1d6ae0b 186Matches the visited file name against the elements of `auto-insert-alist'."
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187 (interactive)
188 (and (not buffer-read-only)
189 (or (eq this-command 'auto-insert)
190 (and auto-insert
191 (bobp) (eobp)))
192 (let ((alist auto-insert-alist)
193 case-fold-search cond desc action)
194 (goto-char 1)
195 ;; find first matching alist entry
196 (while alist
197 (if (atom (setq cond (car (car alist))))
198 (setq desc cond)
199 (setq desc (cdr cond)
200 cond (car cond)))
201 (if (if (symbolp cond)
202 (eq cond major-mode)
203 (string-match cond buffer-file-name))
204 (setq action (cdr (car alist))
205 alist nil)
206 (setq alist (cdr alist))))
207
208 ;; Now, if we found something, do it
209 (and action
210 (if (stringp action)
211 (file-readable-p (concat auto-insert-directory action))
212 t)
213 (if auto-insert-query
214 (or (if (eq auto-insert-query 'function)
215 (eq this-command 'auto-insert))
216 (y-or-n-p (format auto-insert-prompt desc)))
217 t)
218 (mapcar
219 (lambda (action)
220 (if (stringp action)
221 (if (file-readable-p
222 (setq action (concat auto-insert-directory action)))
223 (insert-file-contents action))
224 (save-window-excursion
225 ;; make buffer visible before skeleton or function
226 ;; which might ask the user for something
227 (switch-to-buffer (current-buffer))
228 (if (and (consp action)
229 (not (eq (car action) 'lambda)))
230 (skeleton-insert action)
231 (funcall action)))))
232 (if (vectorp action)
233 action
234 (vector action))))
235 (and (buffer-modified-p)
236 (not (eq this-command 'auto-insert))
237 (set-buffer-modified-p (eq auto-insert t))))))
238
239
240;;;###autoload
241(defun define-auto-insert (key action &optional after)
242 "Associate CONDITION with (additional) ACTION in `auto-insert-alist'.
243Optional AFTER means to insert action after all existing actions for CONDITION,
244or if CONDITION had no actions, after all other CONDITIONs."
245 (let ((elt (assoc key auto-insert-alist)))
246 (if elt
247 (setcdr elt
248 (if (vectorp (cdr elt))
249 (vconcat (if after (cdr elt))
250 (if (vectorp action) action (vector action))
251 (if after () (cdr elt)))
252 (if after
253 (vector (cdr elt) action)
254 (vector action (cdr elt)))))
255 (if after
256 (nconc auto-insert-alist (list (cons key action)))
257 (setq auto-insert-alist (cons (cons key action)
258 auto-insert-alist))))))
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259
260;;; autoinsert.el ends here