|
163
|
1 ;;; hippie-exp.el --- expand text trying various ways to find its expansion.
|
|
|
2
|
|
|
3 ;; Copyright (C) 1992 Free Software Foundation, Inc.
|
|
|
4
|
|
|
5 ;; Author: Anders Holst <aho@sans.kth.se>
|
|
|
6 ;; Last change: 6 August 1995
|
|
|
7 ;; Version: 1.4
|
|
|
8 ;; Keywords: abbrev
|
|
|
9
|
|
|
10 ;; This file is part of GNU Emacs.
|
|
|
11
|
|
|
12 ;; GNU Emacs is free software; you can redistribute it and/or modify
|
|
|
13 ;; it under the terms of the GNU General Public License as published by
|
|
|
14 ;; the Free Software Foundation; either version 2, or (at your option)
|
|
|
15 ;; any later version.
|
|
|
16
|
|
|
17 ;; GNU Emacs is distributed in the hope that it will be useful,
|
|
|
18 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
20 ;; GNU General Public License for more details.
|
|
|
21
|
|
|
22 ;; You should have received a copy of the GNU General Public License
|
|
|
23 ;; along with GNU Emacs; see the file COPYING. If not, write to the
|
|
|
24 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
|
25 ;; Boston, MA 02111-1307, USA.
|
|
|
26
|
|
|
27 ;;; Synched up with: Emacs/Mule zeta
|
|
|
28
|
|
|
29 ;;; Commentary:
|
|
|
30
|
|
|
31 ;; `hippie-expand' is a single function for a lot of different kinds
|
|
|
32 ;; of completions and expansions. Called repeatedly it tries all
|
|
|
33 ;; possible completions in succession.
|
|
|
34 ;; Which kinds of completions to try, and in which order, is
|
|
|
35 ;; determined by the contents of `hippie-expand-try-functions-list'.
|
|
|
36 ;; Much customization of `hippie-expand' can be made by changing the
|
|
|
37 ;; order of, removing, or inserting new functions in this list.
|
|
|
38 ;; Given a positive numeric argument, `hippie-expand' jumps directly
|
|
|
39 ;; ARG functions forward in this list. Given some other argument
|
|
|
40 ;; (a negative argument or just Ctrl-U) it undoes the tried
|
|
|
41 ;; completion.
|
|
|
42 ;;
|
|
|
43 ;; If the variable `hippie-expand-verbose' is non-nil, `hippie-expand'
|
|
|
44 ;; outputs in a message which try-function in the list that is used
|
|
|
45 ;; currently (ie. was used currently and will be tried first the next
|
|
|
46 ;; time).
|
|
|
47 ;; The variable `hippie-expand-max-buffers' determines in how many
|
|
|
48 ;; buffers, apart from the current, to search for expansions in. It
|
|
|
49 ;; is used by the try-functions named "-all-buffers".
|
|
|
50 ;; The variable `hippie-expand-ignore-buffers' is a list of regexps
|
|
|
51 ;; matching buffer names (as strings) or major modes (as atoms) of
|
|
|
52 ;; buffers that should not be searched by the try-functions named
|
|
|
53 ;; "-all-buffers".
|
|
|
54 ;; See also the macro `make-hippie-expand-function' below.
|
|
|
55 ;;
|
|
|
56 ;; A short description of the current try-functions in this file:
|
|
|
57 ;; `try-complete-file-name' : very convenient to have in any buffer,
|
|
|
58 ;; and not just in the minibuffer or (some) shell-mode. It goes
|
|
|
59 ;; through all possible completions instead of just completing as
|
|
|
60 ;; much as is unique.
|
|
|
61 ;; `try-complete-file-name-partially' : To insert in the list just
|
|
|
62 ;; before `try-complete-file-name' for those who want first to get
|
|
|
63 ;; a file name completed only as many characters as is unique.
|
|
|
64 ;; `try-expand-all-abbrevs' : can be removed if you don't use abbrevs.
|
|
|
65 ;; Otherwise it looks through all abbrev-tables, starting with
|
|
|
66 ;; the local followed by the global.
|
|
|
67 ;; `try-expand-line' : Searches the buffer for an entire line that
|
|
|
68 ;; begins exactly as the current line. Convenient sometimes, for
|
|
|
69 ;; example as a substitute for (or complement to) the history
|
|
|
70 ;; list in shell-like buffers. At other times, only confusing.
|
|
|
71 ;; `try-expand-line-all-buffers' : Like `try-expand-line' but searches
|
|
|
72 ;; in all buffers (except the current). (This may be a little
|
|
|
73 ;; slow, don't use it unless you are really fond of `hippie-expand'.)
|
|
|
74 ;; `try-expand-list' : Tries to expand the text back to the nearest
|
|
|
75 ;; open delimiter, to a whole list from the buffer. Convenient for
|
|
|
76 ;; example when writing lisp or TeX.
|
|
|
77 ;; `try-expand-list-all-buffers' : Like `try-expand-list' but searches
|
|
|
78 ;; in all buffers (except the current).
|
|
|
79 ;; `try-expand-dabbrev' : works exactly as dabbrev-expand (but of
|
|
|
80 ;; course in a way compatible with the other try-functions).
|
|
|
81 ;; `try-expand-dabbrev-all-buffers' : perhaps the most useful of them,
|
|
|
82 ;; like `dabbrev-expand' but searches all Emacs buffers (except the
|
|
|
83 ;; current) for matching words. (No, I don't find this one
|
|
|
84 ;; particularly slow.)
|
|
|
85 ;; `try-expand-dabbrev-visible': Searches the currently visible parts of
|
|
|
86 ;; all windows. Can be put before `try-expand-dabbrev-all-buffers' to
|
|
|
87 ;; first try the expansions you can see.
|
|
|
88 ;; `try-expand-dabbrev-from-kill': Searches the kill ring for a suitable
|
|
|
89 ;; completion of the word. Good to have, just in case the word was not
|
|
|
90 ;; found elsewhere.
|
|
|
91 ;; `try-expand-whole-kill' : Tries to complete text with a whole entry
|
|
|
92 ;; from the kill ring. May be good if you don't know how far up in
|
|
|
93 ;; the kill-ring the required entry is, and don't want to mess with
|
|
|
94 ;; "Choose Next Paste".
|
|
|
95 ;; `try-complete-lisp-symbol' : like `lisp-complete-symbol', but goes
|
|
|
96 ;; through all possibilities instead of completing what is unique.
|
|
|
97 ;; Might be tedious (usually a lot of possible completions) and
|
|
|
98 ;; since its function is much like `lisp-complete-symbol', which
|
|
|
99 ;; already has a key of its own, you might want to remove this.
|
|
|
100 ;; `try-complete-lisp-symbol-partially' : To insert in the list just
|
|
|
101 ;; before `try-complete-lisp-symbol' for those who first want to get
|
|
|
102 ;; completion of what is unique in the name.
|
|
|
103 ;;
|
|
|
104 ;; Not all of the above functions are by default in
|
|
|
105 ;; `hippie-expand-try-functions-list'. This variable is better set
|
|
|
106 ;; in ".emacs" to make `hippie-expand' behave maximally convenient
|
|
|
107 ;; according to personal taste. Also, instead of loading the
|
|
|
108 ;; variable with all kinds of try-functions above, it might be an
|
|
|
109 ;; idea to use `make-hippie-expand-function' to construct different
|
|
|
110 ;; `hippie-expand'-like functions, with different try-lists and bound
|
|
|
111 ;; to different keys. It is also possible to make
|
|
|
112 ;; `hippie-expand-try-functions-list' a buffer local variable, and
|
|
|
113 ;; let it depend on the mode (by setting it in the mode-hooks).
|
|
|
114 ;;
|
|
|
115 ;; To write new try-functions, consider the following:
|
|
|
116 ;; Each try-function takes one argument OLD which is nil the first
|
|
|
117 ;; time the function is called and true in succeeding calls for the
|
|
|
118 ;; same string to complete. The first time the function has to
|
|
|
119 ;; extract the string before point to complete, and substitute the
|
|
|
120 ;; first completion alternative for it. On following calls it has to
|
|
|
121 ;; substitute the next possible completion for the last tried string.
|
|
|
122 ;; The try-function is to return t as long as it finds new
|
|
|
123 ;; possible completions. When there are no more alternatives it has
|
|
|
124 ;; to restore the text before point to its original contents, and
|
|
|
125 ;; return nil (don't beep or message or anything).
|
|
|
126 ;; The try-function can (should) use the following functions:
|
|
|
127 ;; `he-init-string' : Initializes the text to substitute to the
|
|
|
128 ;; contents of the region BEGIN to END. Also sets the variable
|
|
|
129 ;; `he-search-string' to the text to expand.
|
|
|
130 ;; `he-substitute-string' : substitutes STR into the region
|
|
|
131 ;; initialized with `he-init-string'. (An optional second argument
|
|
|
132 ;; TRANS-CASE non-nil, means transfer of case from the abbreviation
|
|
|
133 ;; to the expansion is ok if that is enabled in the buffer.)
|
|
|
134 ;; `he-reset-string' : Resets the initialized region to its original
|
|
|
135 ;; contents.
|
|
|
136 ;; There is also a variable: `he-tried-table' which is meant to contain
|
|
|
137 ;; all tried expansions so far. The try-function can check this
|
|
|
138 ;; variable to see whether an expansion has already been tried
|
|
|
139 ;; (hint: `he-string-member').
|
|
|
140 ;;
|
|
|
141 ;; Known bugs
|
|
|
142 ;;
|
|
|
143 ;; It may happen that some completion suggestion occurs twice, in
|
|
|
144 ;; spite of the use of `he-tried-table' to prevent that. This is
|
|
|
145 ;; because different try-functions may try to complete different
|
|
|
146 ;; lengths of text, and thus put different amounts of the
|
|
|
147 ;; text in `he-tried-table'. Anyway this seems to occur seldom enough
|
|
|
148 ;; not to be too disturbing. Also it should NOT be possible for the
|
|
|
149 ;; opposite situation to occur, that `hippie-expand' misses some
|
|
|
150 ;; suggestion because it thinks it has already tried it.
|
|
|
151 ;;
|
|
|
152 ;; Acknowledgement
|
|
|
153 ;;
|
|
|
154 ;; I want to thank Mikael Djurfeldt in discussions with whom the idea
|
|
|
155 ;; of this function took form.
|
|
|
156 ;; I am also grateful to all those who have given me suggestions on
|
|
|
157 ;; how to improve it, and all those who helped to find and remove bugs.
|
|
|
158 ;;
|
|
|
159
|
|
|
160 ;;; Code:
|
|
|
161
|
|
|
162 (defvar he-num -1)
|
|
|
163
|
|
|
164 (defvar he-string-beg (make-marker))
|
|
|
165
|
|
|
166 (defvar he-string-end (make-marker))
|
|
|
167
|
|
|
168 (defvar he-search-string ())
|
|
|
169
|
|
|
170 (defvar he-expand-list ())
|
|
|
171
|
|
|
172 (defvar he-tried-table ())
|
|
|
173
|
|
|
174 (defvar he-search-loc (make-marker))
|
|
|
175
|
|
|
176 (defvar he-search-loc2 ())
|
|
|
177
|
|
|
178 (defvar he-search-bw ())
|
|
|
179
|
|
|
180 (defvar he-search-bufs ())
|
|
|
181
|
|
|
182 (defvar he-searched-n-bufs ())
|
|
|
183
|
|
|
184 (defvar he-search-window ())
|
|
|
185
|
|
|
186 ;;;###autoload
|
|
|
187 (defvar hippie-expand-try-functions-list '(try-complete-file-name-partially
|
|
|
188 try-complete-file-name
|
|
|
189 try-expand-all-abbrevs
|
|
|
190 try-expand-list
|
|
|
191 try-expand-line
|
|
|
192 try-expand-dabbrev
|
|
|
193 try-expand-dabbrev-all-buffers
|
|
|
194 try-expand-dabbrev-from-kill
|
|
|
195 try-complete-lisp-symbol-partially
|
|
|
196 try-complete-lisp-symbol)
|
|
|
197 "The list of expansion functions tried in order by `hippie-expand'.
|
|
|
198 To change the behavior of `hippie-expand', remove, change the order of,
|
|
|
199 or insert functions in this list.")
|
|
|
200
|
|
|
201 ;;;###autoload
|
|
|
202 (defvar hippie-expand-verbose t
|
|
|
203 "*Non-nil makes `hippie-expand' output which function it is trying.")
|
|
|
204
|
|
|
205 ;;;###autoload
|
|
|
206 (defvar hippie-expand-max-buffers ()
|
|
|
207 "*The maximum number of buffers (apart from the current) searched.
|
|
|
208 If nil, all buffers are searched.")
|
|
|
209
|
|
|
210 ;;;###autoload
|
|
|
211 (defvar hippie-expand-ignore-buffers '("^ \\*.*\\*$" dired-mode)
|
|
|
212 "*A list specifying which buffers not to search (if not current).
|
|
|
213 Can contain both regexps matching buffer names (as strings) and major modes
|
|
|
214 \(as atoms)")
|
|
|
215
|
|
|
216 ;;;###autoload
|
|
|
217 (defun hippie-expand (arg)
|
|
|
218 "Try to expand text before point, using multiple methods.
|
|
|
219 The expansion functions in `hippie-expand-try-functions-list' are
|
|
|
220 tried in order, until a possible expansion is found. Repeated
|
|
|
221 application of `hippie-expand' inserts successively possible
|
|
|
222 expansions.
|
|
|
223 With a positive numeric argument, jumps directly to the ARG next
|
|
|
224 function in this list. With a negative argument or just \\[universal-argument],
|
|
|
225 undoes the expansion."
|
|
|
226 (interactive "P")
|
|
|
227 (if (or (not arg)
|
|
|
228 (and (integerp arg) (> arg 0)))
|
|
|
229 (let ((first (or (= he-num -1)
|
|
|
230 (not (equal this-command last-command)))))
|
|
|
231 (if first
|
|
|
232 (progn
|
|
|
233 (setq he-num -1)
|
|
|
234 (setq he-tried-table nil)))
|
|
|
235 (if arg
|
|
|
236 (if (not first) (he-reset-string))
|
|
|
237 (setq arg 0))
|
|
|
238 (let ((i (max (+ he-num arg) 0)))
|
|
|
239 (while (not (or (>= i (length hippie-expand-try-functions-list))
|
|
|
240 (apply (nth i hippie-expand-try-functions-list)
|
|
|
241 (list (= he-num i)))))
|
|
|
242 (setq i (1+ i)))
|
|
|
243 (setq he-num i))
|
|
|
244 (if (>= he-num (length hippie-expand-try-functions-list))
|
|
|
245 (progn
|
|
|
246 (setq he-num -1)
|
|
|
247 (if first
|
|
|
248 (message "No expansion found")
|
|
|
249 (message "No further expansions found"))
|
|
|
250 (ding))
|
|
|
251 (if (and hippie-expand-verbose
|
|
|
252 (not (window-minibuffer-p (selected-window))))
|
|
|
253 (message "Using %s"
|
|
|
254 (prin1-to-string (nth he-num
|
|
|
255 hippie-expand-try-functions-list))))))
|
|
|
256 (if (and (>= he-num 0)
|
|
|
257 (eq (marker-buffer he-string-beg) (current-buffer)))
|
|
|
258 (progn
|
|
|
259 (setq he-num -1)
|
|
|
260 (he-reset-string)
|
|
|
261 (if (and hippie-expand-verbose
|
|
|
262 (not (window-minibuffer-p (selected-window))))
|
|
|
263 (message "Undoing expansions"))))))
|
|
|
264
|
|
|
265 ;; Initializes the region to expand (to between BEG and END).
|
|
|
266 (defun he-init-string (beg end)
|
|
|
267 (set-marker he-string-beg beg)
|
|
|
268 (set-marker he-string-end end)
|
|
|
269 (setq he-search-string (buffer-substring beg end)))
|
|
|
270
|
|
|
271 ;; Resets the expanded region to its original contents.
|
|
|
272 (defun he-reset-string ()
|
|
|
273 (let ((newpos (point-marker)))
|
|
|
274 (goto-char he-string-beg)
|
|
|
275 (insert he-search-string)
|
|
|
276 (delete-region (point) he-string-end)
|
|
|
277 (goto-char newpos)))
|
|
|
278
|
|
|
279 ;; Substitutes an expansion STR into the correct region (the region
|
|
|
280 ;; initialized with `he-init-string').
|
|
|
281 ;; An optional argument TRANS-CASE means that it is ok to transfer case
|
|
|
282 ;; from the abbreviation to the expansion if that is possible, and is
|
|
|
283 ;; enabled in the buffer.
|
|
|
284 (defun he-substitute-string (str &optional trans-case)
|
|
|
285 (let ((trans-case (and trans-case
|
|
|
286 case-replace
|
|
|
287 case-fold-search))
|
|
|
288 (newpos (point-marker))
|
|
|
289 (subst ()))
|
|
|
290 (goto-char he-string-beg)
|
|
|
291 (setq subst (if trans-case (he-transfer-case he-search-string str) str))
|
|
|
292 (setq he-tried-table (cons subst he-tried-table))
|
|
|
293 (insert subst)
|
|
|
294 (delete-region (point) he-string-end)
|
|
|
295 (goto-char newpos)))
|
|
|
296
|
|
|
297 (defun he-capitalize-first (str)
|
|
|
298 (save-match-data
|
|
|
299 (if (string-match "\\Sw*\\(\\sw\\).*" str)
|
|
|
300 (let ((res (downcase str))
|
|
|
301 (no (match-beginning 1)))
|
|
|
302 (aset res no (upcase (aref str no)))
|
|
|
303 res)
|
|
|
304 str)))
|
|
|
305
|
|
|
306 (defun he-ordinary-case-p (str)
|
|
|
307 (or (string= str (downcase str))
|
|
|
308 (string= str (upcase str))
|
|
|
309 (string= str (capitalize str))
|
|
|
310 (string= str (he-capitalize-first str))))
|
|
|
311
|
|
|
312 (defun he-transfer-case (from-str to-str)
|
|
|
313 (cond ((string= from-str (substring to-str 0 (min (length from-str)
|
|
|
314 (length to-str))))
|
|
|
315 to-str)
|
|
|
316 ((not (he-ordinary-case-p to-str))
|
|
|
317 to-str)
|
|
|
318 ((string= from-str (downcase from-str))
|
|
|
319 (downcase to-str))
|
|
|
320 ((string= from-str (upcase from-str))
|
|
|
321 (upcase to-str))
|
|
|
322 ((string= from-str (he-capitalize-first from-str))
|
|
|
323 (he-capitalize-first to-str))
|
|
|
324 ((string= from-str (capitalize from-str))
|
|
|
325 (capitalize to-str))
|
|
|
326 (t
|
|
|
327 to-str)))
|
|
|
328
|
|
|
329
|
|
|
330 ;; Check if STR is a member of LST.
|
|
|
331 ;; Transform to the final case if optional TRANS-CASE is non-NIL.
|
|
|
332 (defun he-string-member (str lst &optional trans-case)
|
|
|
333 (if str
|
|
|
334 (member (if (and trans-case
|
|
|
335 case-replace
|
|
|
336 case-fold-search)
|
|
|
337 (he-transfer-case he-search-string str)
|
|
|
338 str)
|
|
|
339 lst)))
|
|
|
340
|
|
|
341 ;; Check if STR matches any regexp in LST.
|
|
|
342 ;; Ignore possible non-strings in LST.
|
|
|
343 (defun he-regexp-member (str lst)
|
|
|
344 (while (and lst
|
|
|
345 (or (not (stringp (car lst)))
|
|
|
346 (not (string-match (car lst) str))))
|
|
|
347 (setq lst (cdr lst)))
|
|
|
348 lst)
|
|
|
349
|
|
|
350 ;; For the real hippie-expand enthusiast: A macro that makes it
|
|
|
351 ;; possible to use many functions like hippie-expand, but with
|
|
|
352 ;; different try-functions-lists.
|
|
|
353 ;; Usage is for example:
|
|
|
354 ;; (fset 'my-complete-file (make-hippie-expand-function
|
|
|
355 ;; '(try-complete-file-name-partially
|
|
|
356 ;; try-complete-file-name)))
|
|
|
357 ;; (fset 'my-complete-line (make-hippie-expand-function
|
|
|
358 ;; '(try-expand-line
|
|
|
359 ;; try-expand-line-all-buffers)))
|
|
|
360 ;;
|
|
|
361 ;;;###autoload
|
|
|
362 (defmacro make-hippie-expand-function (try-list &optional verbose)
|
|
|
363 "Construct a function similar to `hippie-expand'.
|
|
|
364 Make it use the expansion functions in TRY-LIST. An optional second
|
|
|
365 argument VERBOSE non-nil makes the function verbose."
|
|
|
366 (` (function (lambda (arg)
|
|
|
367 (, (concat
|
|
|
368 "Try to expand text before point, using the following functions: \n"
|
|
|
369 (mapconcat 'prin1-to-string (eval try-list) ", ")))
|
|
|
370 (interactive "P")
|
|
|
371 (let ((hippie-expand-try-functions-list (, try-list))
|
|
|
372 (hippie-expand-verbose (, verbose)))
|
|
|
373 (hippie-expand arg))))))
|
|
|
374
|
|
|
375
|
|
|
376 ;;; Here follows the try-functions and their requisites:
|
|
|
377
|
|
|
378
|
|
|
379 (defun try-complete-file-name (old)
|
|
|
380 "Try to complete text as a file name.
|
|
|
381 The argument OLD has to be nil the first call of this function, and t
|
|
|
382 for subsequent calls (for further possible completions of the same
|
|
|
383 string). It returns t if a new completion is found, nil otherwise."
|
|
|
384 (if (not old)
|
|
|
385 (progn
|
|
|
386 (he-init-string (he-file-name-beg) (point))
|
|
|
387 (let ((name-part (he-file-name-nondirectory he-search-string))
|
|
|
388 (dir-part (expand-file-name (or (he-file-name-directory
|
|
|
389 he-search-string) ""))))
|
|
|
390 (if (not (he-string-member name-part he-tried-table))
|
|
|
391 (setq he-tried-table (cons name-part he-tried-table)))
|
|
|
392 (if (and (not (equal he-search-string ""))
|
|
|
393 (he-file-directory-p dir-part))
|
|
|
394 (setq he-expand-list (sort (file-name-all-completions
|
|
|
395 name-part
|
|
|
396 dir-part)
|
|
|
397 'string-lessp))
|
|
|
398 (setq he-expand-list ())))))
|
|
|
399
|
|
|
400 (while (and he-expand-list
|
|
|
401 (he-string-member (car he-expand-list) he-tried-table))
|
|
|
402 (setq he-expand-list (cdr he-expand-list)))
|
|
|
403 (if (null he-expand-list)
|
|
|
404 (progn
|
|
|
405 (if old (he-reset-string))
|
|
|
406 ())
|
|
|
407 (let ((filename (he-concat-directory-file-name
|
|
|
408 (he-file-name-directory he-search-string)
|
|
|
409 (car he-expand-list))))
|
|
|
410 (he-substitute-string filename)
|
|
|
411 (setq he-tried-table (cons (car he-expand-list) (cdr he-tried-table)))
|
|
|
412 (setq he-expand-list (cdr he-expand-list))
|
|
|
413 t)))
|
|
|
414
|
|
|
415 (defun try-complete-file-name-partially (old)
|
|
|
416 "Try to complete text as a file name, as many characters as unique.
|
|
|
417 The argument OLD has to be nil the first call of this function. It
|
|
|
418 returns t if a unique, possibly partial, completion is found, nil
|
|
|
419 otherwise."
|
|
|
420 (let ((expansion ()))
|
|
|
421 (if (not old)
|
|
|
422 (progn
|
|
|
423 (he-init-string (he-file-name-beg) (point))
|
|
|
424 (let ((name-part (he-file-name-nondirectory he-search-string))
|
|
|
425 (dir-part (expand-file-name (or (he-file-name-directory
|
|
|
426 he-search-string) ""))))
|
|
|
427 (if (and (not (equal he-search-string ""))
|
|
|
428 (he-file-directory-p dir-part))
|
|
|
429 (setq expansion (file-name-completion name-part
|
|
|
430 dir-part)))
|
|
|
431 (if (or (eq expansion t)
|
|
|
432 (string= expansion name-part)
|
|
|
433 (he-string-member expansion he-tried-table))
|
|
|
434 (setq expansion ())))))
|
|
|
435
|
|
|
436 (if (not expansion)
|
|
|
437 (progn
|
|
|
438 (if old (he-reset-string))
|
|
|
439 ())
|
|
|
440 (let ((filename (he-concat-directory-file-name
|
|
|
441 (he-file-name-directory he-search-string)
|
|
|
442 expansion)))
|
|
|
443 (he-substitute-string filename)
|
|
|
444 (setq he-tried-table (cons expansion (cdr he-tried-table)))
|
|
|
445 t))))
|
|
|
446
|
|
|
447 (defvar he-file-name-chars
|
|
|
448 (cond ((memq system-type '(vax-vms axp-vms))
|
|
|
449 "-a-zA-Z0-9_/.,~^#$+=:\\[\\]")
|
|
|
450 ((memq system-type '(ms-dos windows-nt))
|
|
|
451 "-a-zA-Z0-9_/.,~^#$+=:\\\\")
|
|
|
452 (t ;; More strange file formats ?
|
|
|
453 "-a-zA-Z0-9_/.,~^#$+="))
|
|
|
454 "Characters that are considered part of the file name to expand.")
|
|
|
455
|
|
|
456 (defun he-file-name-beg ()
|
|
|
457 (save-excursion
|
|
|
458 (skip-chars-backward he-file-name-chars)
|
|
|
459 (point)))
|
|
|
460
|
|
|
461 ;; Thanks go to Richard Levitte <levitte@e.kth.se> who helped to make these
|
|
|
462 ;; work under VMS, and to David Hughes <ukchugd@ukpmr.cs.philips.nl> who
|
|
|
463 ;; helped to make it work on PC.
|
|
|
464 (defun he-file-name-nondirectory (file)
|
|
|
465 "Fix to make `file-name-nondirectory' work for hippie-expand under VMS."
|
|
|
466 (if (memq system-type '(axp-vms vax-vms))
|
|
|
467 (let ((n (file-name-nondirectory file)))
|
|
|
468 (if (string-match "^\\(\\[.*\\)\\.\\([^\\.]*\\)$" n)
|
|
|
469 (concat "[." (substring n (match-beginning 2) (match-end 2)))
|
|
|
470 n))
|
|
|
471 (file-name-nondirectory file)))
|
|
|
472
|
|
|
473 (defun he-file-name-directory (file)
|
|
|
474 "Fix to make `file-name-directory' work for hippie-expand under VMS."
|
|
|
475 (if (memq system-type '(axp-vms vax-vms))
|
|
|
476 (let ((n (file-name-nondirectory file))
|
|
|
477 (d (file-name-directory file)))
|
|
|
478 (if (string-match "^\\(\\[.*\\)\\.\\([^\\.]*\\)$" n)
|
|
|
479 (concat d (substring n (match-beginning 1) (match-end 1)) "]")
|
|
|
480 d))
|
|
|
481 (file-name-directory file)))
|
|
|
482
|
|
|
483 (defun he-file-directory-p (file)
|
|
|
484 "Fix to make `file-directory-p' work for hippie-expand under VMS."
|
|
|
485 (if (memq system-type '(vax-vms axp-vms))
|
|
|
486 (or (file-directory-p file)
|
|
|
487 (file-directory-p (concat file "[000000]")))
|
|
|
488 (file-directory-p file)))
|
|
|
489
|
|
|
490 (defun he-concat-directory-file-name (dir-part name-part)
|
|
|
491 "Try to slam together two parts of a file specification, system dependently."
|
|
|
492 (cond ((null dir-part) name-part)
|
|
|
493 ((memq system-type '(axp-vms vax-vms))
|
|
|
494 (if (and (string= (substring dir-part -1) "]")
|
|
|
495 (string= (substring name-part 0 2) "[."))
|
|
|
496 (concat (substring dir-part 0 -1) (substring name-part 1))
|
|
|
497 (concat dir-part name-part)))
|
|
213
|
498 ((memq system-type '(ms-dos mswindows))
|
|
163
|
499 (if (and (string-match "\\\\" dir-part)
|
|
|
500 (not (string-match "/" dir-part))
|
|
|
501 (= (aref name-part (1- (length name-part))) ?/))
|
|
|
502 (aset name-part (1- (length name-part)) ?\\))
|
|
|
503 (concat dir-part name-part))
|
|
|
504 (t
|
|
|
505 (concat dir-part name-part))))
|
|
|
506
|
|
|
507 (defun try-complete-lisp-symbol (old)
|
|
|
508 "Try to complete word as an Emacs Lisp symbol.
|
|
|
509 The argument OLD has to be nil the first call of this function, and t
|
|
|
510 for subsequent calls (for further possible completions of the same
|
|
|
511 string). It returns t if a new completion is found, nil otherwise."
|
|
|
512 (if (not old)
|
|
|
513 (progn
|
|
|
514 (he-init-string (he-lisp-symbol-beg) (point))
|
|
|
515 (if (not (he-string-member he-search-string he-tried-table))
|
|
|
516 (setq he-tried-table (cons he-search-string he-tried-table)))
|
|
|
517 (setq he-expand-list
|
|
|
518 (and (not (equal he-search-string ""))
|
|
|
519 (sort (all-completions he-search-string obarray
|
|
|
520 (function (lambda (sym)
|
|
|
521 (or (boundp sym)
|
|
|
522 (fboundp sym)
|
|
|
523 (symbol-plist sym)))))
|
|
|
524 'string-lessp)))))
|
|
|
525 (while (and he-expand-list
|
|
|
526 (he-string-member (car he-expand-list) he-tried-table))
|
|
|
527 (setq he-expand-list (cdr he-expand-list)))
|
|
|
528 (if (null he-expand-list)
|
|
|
529 (progn
|
|
|
530 (if old (he-reset-string))
|
|
|
531 ())
|
|
|
532 (progn
|
|
|
533 (he-substitute-string (car he-expand-list))
|
|
|
534 (setq he-expand-list (cdr he-expand-list))
|
|
|
535 t)))
|
|
|
536
|
|
|
537 (defun try-complete-lisp-symbol-partially (old)
|
|
|
538 "Try to complete as an Emacs Lisp symbol, as many characters as unique.
|
|
|
539 The argument OLD has to be nil the first call of this function. It
|
|
|
540 returns t if a unique, possibly partial, completion is found, nil
|
|
|
541 otherwise."
|
|
|
542 (let ((expansion ()))
|
|
|
543 (if (not old)
|
|
|
544 (progn
|
|
|
545 (he-init-string (he-lisp-symbol-beg) (point))
|
|
|
546 (if (not (string= he-search-string ""))
|
|
|
547 (setq expansion
|
|
|
548 (try-completion he-search-string obarray
|
|
|
549 (function (lambda (sym)
|
|
|
550 (or (boundp sym)
|
|
|
551 (fboundp sym)
|
|
|
552 (symbol-plist sym)))))))
|
|
|
553 (if (or (eq expansion t)
|
|
|
554 (string= expansion he-search-string)
|
|
|
555 (he-string-member expansion he-tried-table))
|
|
|
556 (setq expansion ()))))
|
|
|
557
|
|
|
558 (if (not expansion)
|
|
|
559 (progn
|
|
|
560 (if old (he-reset-string))
|
|
|
561 ())
|
|
|
562 (progn
|
|
|
563 (he-substitute-string expansion)
|
|
|
564 t))))
|
|
|
565
|
|
|
566 (defun he-lisp-symbol-beg ()
|
|
|
567 (let ((skips "-a-zA-Z0-9_."))
|
|
|
568 (save-excursion
|
|
|
569 (skip-chars-backward skips)
|
|
|
570 (point))))
|
|
|
571
|
|
|
572 (defun try-expand-line (old)
|
|
|
573 "Try to complete the current line to an entire line in the buffer.
|
|
|
574 The argument OLD has to be nil the first call of this function, and t
|
|
|
575 for subsequent calls (for further possible completions of the same
|
|
|
576 string). It returns t if a new completion is found, nil otherwise."
|
|
|
577 (let ((expansion ())
|
|
|
578 (strip-prompt (and (get-buffer-process (current-buffer))
|
|
|
579 comint-prompt-regexp)))
|
|
|
580 (if (not old)
|
|
|
581 (progn
|
|
|
582 (he-init-string (he-line-beg strip-prompt) (point))
|
|
|
583 (set-marker he-search-loc he-string-beg)
|
|
|
584 (setq he-search-bw t)))
|
|
|
585
|
|
|
586 (if (not (equal he-search-string ""))
|
|
|
587 (save-excursion
|
|
|
588 ;; Try looking backward unless inhibited.
|
|
|
589 (if he-search-bw
|
|
|
590 (progn
|
|
|
591 (goto-char he-search-loc)
|
|
|
592 (setq expansion (he-line-search he-search-string
|
|
|
593 strip-prompt t))
|
|
|
594 (set-marker he-search-loc (point))
|
|
|
595 (if (not expansion)
|
|
|
596 (progn
|
|
|
597 (set-marker he-search-loc he-string-end)
|
|
|
598 (setq he-search-bw ())))))
|
|
|
599
|
|
|
600 (if (not expansion) ; Then look forward.
|
|
|
601 (progn
|
|
|
602 (goto-char he-search-loc)
|
|
|
603 (setq expansion (he-line-search he-search-string
|
|
|
604 strip-prompt nil))
|
|
|
605 (set-marker he-search-loc (point))))))
|
|
|
606
|
|
|
607 (if (not expansion)
|
|
|
608 (progn
|
|
|
609 (if old (he-reset-string))
|
|
|
610 ())
|
|
|
611 (progn
|
|
|
612 (he-substitute-string expansion t)
|
|
|
613 t))))
|
|
|
614
|
|
|
615 (defun try-expand-line-all-buffers (old)
|
|
|
616 "Try to complete the current line, searching all other buffers.
|
|
|
617 The argument OLD has to be nil the first call of this function, and t
|
|
|
618 for subsequent calls (for further possible completions of the same
|
|
|
619 string). It returns t if a new completion is found, nil otherwise."
|
|
|
620 (let ((expansion ())
|
|
|
621 (strip-prompt (and (get-buffer-process (current-buffer))
|
|
|
622 comint-prompt-regexp))
|
|
|
623 (buf (current-buffer))
|
|
|
624 (orig-case-fold-search case-fold-search))
|
|
|
625 (if (not old)
|
|
|
626 (progn
|
|
|
627 (he-init-string (he-line-beg strip-prompt) (point))
|
|
|
628 (setq he-search-bufs (buffer-list))
|
|
|
629 (setq he-searched-n-bufs 0)
|
|
|
630 (set-marker he-search-loc 1 (car he-search-bufs))))
|
|
|
631
|
|
|
632 (if (not (equal he-search-string ""))
|
|
|
633 (while (and he-search-bufs
|
|
|
634 (not expansion)
|
|
|
635 (or (not hippie-expand-max-buffers)
|
|
|
636 (< he-searched-n-bufs hippie-expand-max-buffers)))
|
|
|
637 (set-buffer (car he-search-bufs))
|
|
|
638 (if (and (not (eq (current-buffer) buf))
|
|
|
639 (not (memq major-mode hippie-expand-ignore-buffers))
|
|
|
640 (not (he-regexp-member (buffer-name)
|
|
|
641 hippie-expand-ignore-buffers)))
|
|
|
642 (save-excursion
|
|
|
643 (goto-char he-search-loc)
|
|
|
644 (setq strip-prompt (and (get-buffer-process (current-buffer))
|
|
|
645 comint-prompt-regexp))
|
|
|
646 (setq expansion (let ((case-fold-search orig-case-fold-search))
|
|
|
647 (he-line-search he-search-string
|
|
|
648 strip-prompt nil)))
|
|
|
649 (set-marker he-search-loc (point))
|
|
|
650 (if (not expansion)
|
|
|
651 (progn
|
|
|
652 (setq he-search-bufs (cdr he-search-bufs))
|
|
|
653 (setq he-searched-n-bufs (1+ he-searched-n-bufs))
|
|
|
654 (set-marker he-search-loc 1 (car he-search-bufs)))))
|
|
|
655 (setq he-search-bufs (cdr he-search-bufs))
|
|
|
656 (set-marker he-search-loc 1 (car he-search-bufs)))))
|
|
|
657
|
|
|
658 (set-buffer buf)
|
|
|
659 (if (not expansion)
|
|
|
660 (progn
|
|
|
661 (if old (he-reset-string))
|
|
|
662 ())
|
|
|
663 (progn
|
|
|
664 (he-substitute-string expansion t)
|
|
|
665 t))))
|
|
|
666
|
|
|
667 (defun he-line-search (str strip-prompt reverse)
|
|
|
668 (let ((result ()))
|
|
|
669 (while (and (not result)
|
|
|
670 (if reverse
|
|
|
671 (re-search-backward
|
|
|
672 (he-line-search-regexp str strip-prompt)
|
|
|
673 nil t)
|
|
|
674 (re-search-forward
|
|
|
675 (he-line-search-regexp str strip-prompt)
|
|
|
676 nil t)))
|
|
|
677 (setq result (buffer-substring (match-beginning 2) (match-end 2)))
|
|
|
678 (if (he-string-member result he-tried-table t)
|
|
|
679 (setq result nil))) ; if already in table, ignore
|
|
|
680 result))
|
|
|
681
|
|
|
682 (defun he-line-beg (strip-prompt)
|
|
|
683 (save-excursion
|
|
|
684 (if (re-search-backward (he-line-search-regexp "" strip-prompt)
|
|
|
685 (save-excursion (beginning-of-line)
|
|
|
686 (point)) t)
|
|
|
687 (match-beginning 2)
|
|
|
688 (point))))
|
|
|
689
|
|
|
690 (defun he-line-search-regexp (pat strip-prompt)
|
|
|
691 (if strip-prompt
|
|
|
692 (concat "\\(" comint-prompt-regexp "\\|^\\s-*\\)\\("
|
|
|
693 (regexp-quote pat)
|
|
|
694 "[^\n]*[^ \t\n]\\)")
|
|
|
695 (concat "^\\(\\s-*\\)\\("
|
|
|
696 (regexp-quote pat)
|
|
|
697 "[^\n]*[^ \t\n]\\)")))
|
|
|
698
|
|
|
699 (defun try-expand-list (old)
|
|
|
700 "Try to complete the current beginning of a list.
|
|
|
701 The argument OLD has to be nil the first call of this function, and t
|
|
|
702 for subsequent calls (for further possible completions of the same
|
|
|
703 string). It returns t if a new completion is found, nil otherwise."
|
|
|
704 (let ((expansion ()))
|
|
|
705 (if (not old)
|
|
|
706 (progn
|
|
|
707 (he-init-string (he-list-beg) (point))
|
|
|
708 (set-marker he-search-loc he-string-beg)
|
|
|
709 (setq he-search-bw t)))
|
|
|
710
|
|
|
711 (if (not (equal he-search-string ""))
|
|
|
712 (save-excursion
|
|
|
713 ;; Try looking backward unless inhibited.
|
|
|
714 (if he-search-bw
|
|
|
715 (progn
|
|
|
716 (goto-char he-search-loc)
|
|
|
717 (setq expansion (he-list-search he-search-string t))
|
|
|
718 (set-marker he-search-loc (point))
|
|
|
719 (if (not expansion)
|
|
|
720 (progn
|
|
|
721 (set-marker he-search-loc he-string-end)
|
|
|
722 (setq he-search-bw ())))))
|
|
|
723
|
|
|
724 (if (not expansion) ; Then look forward.
|
|
|
725 (progn
|
|
|
726 (goto-char he-search-loc)
|
|
|
727 (setq expansion (he-list-search he-search-string nil))
|
|
|
728 (set-marker he-search-loc (point))))))
|
|
|
729
|
|
|
730 (if (not expansion)
|
|
|
731 (progn
|
|
|
732 (if old (he-reset-string))
|
|
|
733 ())
|
|
|
734 (progn
|
|
|
735 (he-substitute-string expansion t)
|
|
|
736 t))))
|
|
|
737
|
|
|
738 (defun try-expand-list-all-buffers (old)
|
|
|
739 "Try to complete the current list, searching all other buffers.
|
|
|
740 The argument OLD has to be nil the first call of this function, and t
|
|
|
741 for subsequent calls (for further possible completions of the same
|
|
|
742 string). It returns t if a new completion is found, nil otherwise."
|
|
|
743 (let ((expansion ())
|
|
|
744 (buf (current-buffer))
|
|
|
745 (orig-case-fold-search case-fold-search))
|
|
|
746 (if (not old)
|
|
|
747 (progn
|
|
|
748 (he-init-string (he-list-beg) (point))
|
|
|
749 (setq he-search-bufs (buffer-list))
|
|
|
750 (setq he-searched-n-bufs 0)
|
|
|
751 (set-marker he-search-loc 1 (car he-search-bufs))))
|
|
|
752
|
|
|
753 (if (not (equal he-search-string ""))
|
|
|
754 (while (and he-search-bufs
|
|
|
755 (not expansion)
|
|
|
756 (or (not hippie-expand-max-buffers)
|
|
|
757 (< he-searched-n-bufs hippie-expand-max-buffers)))
|
|
|
758 (set-buffer (car he-search-bufs))
|
|
|
759 (if (and (not (eq (current-buffer) buf))
|
|
|
760 (not (memq major-mode hippie-expand-ignore-buffers))
|
|
|
761 (not (he-regexp-member (buffer-name)
|
|
|
762 hippie-expand-ignore-buffers)))
|
|
|
763 (save-excursion
|
|
|
764 (goto-char he-search-loc)
|
|
|
765 (setq expansion (let ((case-fold-search orig-case-fold-search))
|
|
|
766 (he-list-search he-search-string nil)))
|
|
|
767 (set-marker he-search-loc (point))
|
|
|
768 (if (not expansion)
|
|
|
769 (progn
|
|
|
770 (setq he-search-bufs (cdr he-search-bufs))
|
|
|
771 (setq he-searched-n-bufs (1+ he-searched-n-bufs))
|
|
|
772 (set-marker he-search-loc 1 (car he-search-bufs)))))
|
|
|
773 (setq he-search-bufs (cdr he-search-bufs))
|
|
|
774 (set-marker he-search-loc 1 (car he-search-bufs)))))
|
|
|
775
|
|
|
776 (set-buffer buf)
|
|
|
777 (if (not expansion)
|
|
|
778 (progn
|
|
|
779 (if old (he-reset-string))
|
|
|
780 ())
|
|
|
781 (progn
|
|
|
782 (he-substitute-string expansion t)
|
|
|
783 t))))
|
|
|
784
|
|
|
785 (defun he-list-search (str reverse)
|
|
|
786 (let ((result ())
|
|
|
787 beg pos err)
|
|
|
788 (while (and (not result)
|
|
|
789 (if reverse
|
|
|
790 (search-backward str nil t)
|
|
|
791 (search-forward str nil t)))
|
|
|
792 (setq pos (point))
|
|
|
793 (setq beg (match-beginning 0))
|
|
|
794 (goto-char beg)
|
|
|
795 (setq err ())
|
|
|
796 (condition-case ()
|
|
|
797 (forward-list 1)
|
|
|
798 (error (setq err t)))
|
|
|
799 (if (and reverse
|
|
|
800 (> (point) he-string-beg))
|
|
|
801 (setq err t))
|
|
|
802 (if (not err)
|
|
|
803 (progn
|
|
|
804 (setq result (buffer-substring beg (point)))
|
|
|
805 (if (he-string-member result he-tried-table t)
|
|
|
806 (setq result nil)))) ; if already in table, ignore
|
|
|
807 (goto-char pos))
|
|
|
808 result))
|
|
|
809
|
|
|
810 (defun he-list-beg ()
|
|
|
811 (save-excursion
|
|
|
812 (condition-case ()
|
|
|
813 (backward-up-list 1)
|
|
|
814 (error ()))
|
|
|
815 (point)))
|
|
|
816
|
|
|
817 (defun try-expand-all-abbrevs (old)
|
|
|
818 "Try to expand word before point according to all abbrev tables.
|
|
|
819 The argument OLD has to be nil the first call of this function, and t
|
|
|
820 for subsequent calls (for further possible expansions of the same
|
|
|
821 string). It returns t if a new expansion is found, nil otherwise."
|
|
|
822 (if (not old)
|
|
|
823 (progn
|
|
|
824 (he-init-string (he-dabbrev-beg) (point))
|
|
|
825 (setq he-expand-list
|
|
|
826 (and (not (equal he-search-string ""))
|
|
|
827 (mapcar (function (lambda (sym)
|
|
|
828 (if (and (boundp sym) (vectorp (eval sym)))
|
|
|
829 (abbrev-expansion (downcase he-search-string)
|
|
|
830 (eval sym)))))
|
|
|
831 (append '(local-abbrev-table
|
|
|
832 global-abbrev-table)
|
|
|
833 abbrev-table-name-list))))))
|
|
|
834 (while (and he-expand-list
|
|
|
835 (or (not (car he-expand-list))
|
|
|
836 (he-string-member (car he-expand-list) he-tried-table t)))
|
|
|
837 (setq he-expand-list (cdr he-expand-list)))
|
|
|
838 (if (null he-expand-list)
|
|
|
839 (progn
|
|
|
840 (if old (he-reset-string))
|
|
|
841 ())
|
|
|
842 (progn
|
|
|
843 (he-substitute-string (car he-expand-list) t)
|
|
|
844 (setq he-expand-list (cdr he-expand-list))
|
|
|
845 t)))
|
|
|
846
|
|
|
847 (defun try-expand-dabbrev (old)
|
|
|
848 "Try to expand word \"dynamically\", searching the current buffer.
|
|
|
849 The argument OLD has to be nil the first call of this function, and t
|
|
|
850 for subsequent calls (for further possible expansions of the same
|
|
|
851 string). It returns t if a new expansion is found, nil otherwise."
|
|
|
852 (let ((expansion ()))
|
|
|
853 (if (not old)
|
|
|
854 (progn
|
|
|
855 (he-init-string (he-dabbrev-beg) (point))
|
|
|
856 (set-marker he-search-loc he-string-beg)
|
|
|
857 (setq he-search-bw t)))
|
|
|
858
|
|
|
859 (if (not (equal he-search-string ""))
|
|
|
860 (save-excursion
|
|
|
861 ;; Try looking backward unless inhibited.
|
|
|
862 (if he-search-bw
|
|
|
863 (progn
|
|
|
864 (goto-char he-search-loc)
|
|
|
865 (setq expansion (he-dabbrev-search he-search-string t))
|
|
|
866 (set-marker he-search-loc (point))
|
|
|
867 (if (not expansion)
|
|
|
868 (progn
|
|
|
869 (set-marker he-search-loc he-string-end)
|
|
|
870 (setq he-search-bw ())))))
|
|
|
871
|
|
|
872 (if (not expansion) ; Then look forward.
|
|
|
873 (progn
|
|
|
874 (goto-char he-search-loc)
|
|
|
875 (setq expansion (he-dabbrev-search he-search-string nil))
|
|
|
876 (set-marker he-search-loc (point))))))
|
|
|
877
|
|
|
878 (if (not expansion)
|
|
|
879 (progn
|
|
|
880 (if old (he-reset-string))
|
|
|
881 ())
|
|
|
882 (progn
|
|
|
883 (he-substitute-string expansion t)
|
|
|
884 t))))
|
|
|
885
|
|
|
886 (defun try-expand-dabbrev-all-buffers (old)
|
|
|
887 "Tries to expand word \"dynamically\", searching all other buffers.
|
|
|
888 The argument OLD has to be nil the first call of this function, and t
|
|
|
889 for subsequent calls (for further possible expansions of the same
|
|
|
890 string). It returns t if a new expansion is found, nil otherwise."
|
|
|
891 (let ((expansion ())
|
|
|
892 (buf (current-buffer))
|
|
|
893 (orig-case-fold-search case-fold-search))
|
|
|
894 (if (not old)
|
|
|
895 (progn
|
|
|
896 (he-init-string (he-dabbrev-beg) (point))
|
|
|
897 (setq he-search-bufs (buffer-list))
|
|
|
898 (setq he-searched-n-bufs 0)
|
|
|
899 (set-marker he-search-loc 1 (car he-search-bufs))))
|
|
|
900
|
|
|
901 (if (not (equal he-search-string ""))
|
|
|
902 (while (and he-search-bufs
|
|
|
903 (not expansion)
|
|
|
904 (or (not hippie-expand-max-buffers)
|
|
|
905 (< he-searched-n-bufs hippie-expand-max-buffers)))
|
|
|
906 (set-buffer (car he-search-bufs))
|
|
|
907 (if (and (not (eq (current-buffer) buf))
|
|
|
908 (not (memq major-mode hippie-expand-ignore-buffers))
|
|
|
909 (not (he-regexp-member (buffer-name)
|
|
|
910 hippie-expand-ignore-buffers)))
|
|
|
911 (save-excursion
|
|
|
912 (goto-char he-search-loc)
|
|
|
913 (setq expansion (let ((case-fold-search orig-case-fold-search))
|
|
|
914 (he-dabbrev-search he-search-string nil)))
|
|
|
915 (set-marker he-search-loc (point))
|
|
|
916 (if (not expansion)
|
|
|
917 (progn
|
|
|
918 (setq he-search-bufs (cdr he-search-bufs))
|
|
|
919 (setq he-searched-n-bufs (1+ he-searched-n-bufs))
|
|
|
920 (set-marker he-search-loc 1 (car he-search-bufs)))))
|
|
|
921 (setq he-search-bufs (cdr he-search-bufs))
|
|
|
922 (set-marker he-search-loc 1 (car he-search-bufs)))))
|
|
|
923
|
|
|
924 (set-buffer buf)
|
|
|
925 (if (not expansion)
|
|
|
926 (progn
|
|
|
927 (if old (he-reset-string))
|
|
|
928 ())
|
|
|
929 (progn
|
|
|
930 (he-substitute-string expansion t)
|
|
|
931 t))))
|
|
|
932
|
|
|
933 ;; Thanks go to Jeff Dairiki <dairiki@faraday.apl.washington.edu> who
|
|
|
934 ;; suggested this one.
|
|
|
935 (defun try-expand-dabbrev-visible (old)
|
|
|
936 "Try to expand word \"dynamically\", searching visible window parts.
|
|
|
937 The argument OLD has to be nil the first call of this function, and t
|
|
|
938 for subsequent calls (for further possible expansions of the same
|
|
|
939 string). It returns t if a new expansion is found, nil otherwise."
|
|
|
940 (let ((expansion ())
|
|
|
941 (buf (current-buffer))
|
|
|
942 (flag (if (frame-visible-p (window-frame (selected-window)))
|
|
|
943 'visible t)))
|
|
|
944 (if (not old)
|
|
|
945 (progn
|
|
|
946 (he-init-string (he-dabbrev-beg) (point))
|
|
|
947 (setq he-search-window (selected-window))
|
|
|
948 (set-marker he-search-loc
|
|
|
949 (window-start he-search-window)
|
|
|
950 (window-buffer he-search-window))))
|
|
|
951
|
|
|
952 (while (and (not (equal he-search-string ""))
|
|
|
953 (marker-position he-search-loc)
|
|
|
954 (not expansion))
|
|
|
955 (save-excursion
|
|
|
956 (set-buffer (marker-buffer he-search-loc))
|
|
|
957 (goto-char he-search-loc)
|
|
|
958 (setq expansion (he-dabbrev-search he-search-string ()
|
|
|
959 (window-end he-search-window)))
|
|
|
960 (if (and expansion
|
|
|
961 (eq (marker-buffer he-string-beg) (current-buffer))
|
|
|
962 (eq (marker-position he-string-beg) (match-beginning 0)))
|
|
|
963 (setq expansion (he-dabbrev-search he-search-string ()
|
|
|
964 (window-end he-search-window))))
|
|
|
965 (set-marker he-search-loc (point) (current-buffer)))
|
|
|
966 (if (not expansion)
|
|
|
967 (progn
|
|
|
968 (setq he-search-window (next-window he-search-window nil flag))
|
|
|
969 (if (eq he-search-window (selected-window))
|
|
|
970 (set-marker he-search-loc nil)
|
|
|
971 (set-marker he-search-loc (window-start he-search-window)
|
|
|
972 (window-buffer he-search-window))))))
|
|
|
973
|
|
|
974 (set-buffer buf)
|
|
|
975 (if (not expansion)
|
|
|
976 (progn
|
|
|
977 (if old (he-reset-string))
|
|
|
978 ())
|
|
|
979 (progn
|
|
|
980 (he-substitute-string expansion t)
|
|
|
981 t))))
|
|
|
982
|
|
|
983 (defun he-dabbrev-search (pattern &optional reverse limit)
|
|
|
984 (let ((result ())
|
|
|
985 (regpat (if (eq (char-syntax (aref pattern 0)) ?_)
|
|
|
986 (concat (regexp-quote pattern) "\\(\\sw\\|\\s_\\)+")
|
|
|
987 (concat "\\<" (regexp-quote pattern) "\\(\\sw\\|\\s_\\)+"))))
|
|
|
988 (while (and (not result)
|
|
|
989 (if reverse
|
|
|
990 (re-search-backward regpat limit t)
|
|
|
991 (re-search-forward regpat limit t)))
|
|
|
992 (setq result (buffer-substring (match-beginning 0) (match-end 0)))
|
|
|
993 (if (or (and (> (match-beginning 0) (point-min))
|
|
|
994 (memq (char-syntax (char-after (1- (match-beginning 0))))
|
|
|
995 '(?_ ?w)))
|
|
|
996 (he-string-member result he-tried-table t))
|
|
|
997 (setq result nil))) ; ignore if bad prefix or already in table
|
|
|
998 result))
|
|
|
999
|
|
|
1000 (defvar he-dabbrev-skip-space ()
|
|
|
1001 "Non-NIL means tolerate trailing spaces in the abbreviation to expand.")
|
|
|
1002
|
|
|
1003 (defun he-dabbrev-beg ()
|
|
|
1004 (let ((op (point)))
|
|
|
1005 (save-excursion
|
|
|
1006 (if he-dabbrev-skip-space
|
|
|
1007 (skip-syntax-backward ". "))
|
|
|
1008 (if (= (skip-syntax-backward "w_") 0)
|
|
|
1009 op
|
|
|
1010 (point)))))
|
|
|
1011
|
|
|
1012 (defun try-expand-dabbrev-from-kill (old)
|
|
|
1013 "Try to expand word \"dynamically\", searching the kill ring.
|
|
|
1014 The argument OLD has to be nil the first call of this function, and t
|
|
|
1015 for subsequent calls (for further possible completions of the same
|
|
|
1016 string). It returns t if a new completion is found, nil otherwise."
|
|
|
1017 (let ((expansion ()))
|
|
|
1018 (if (not old)
|
|
|
1019 (progn
|
|
|
1020 (he-init-string (he-dabbrev-beg) (point))
|
|
|
1021 (setq he-expand-list
|
|
|
1022 (if (not (equal he-search-string ""))
|
|
|
1023 kill-ring))
|
|
|
1024 (setq he-search-loc2 0)))
|
|
|
1025 (if (not (equal he-search-string ""))
|
|
|
1026 (setq expansion (he-dabbrev-kill-search he-search-string)))
|
|
|
1027 (if (not expansion)
|
|
|
1028 (progn
|
|
|
1029 (if old (he-reset-string))
|
|
|
1030 ())
|
|
|
1031 (progn
|
|
|
1032 (he-substitute-string expansion t)
|
|
|
1033 t))))
|
|
|
1034
|
|
|
1035 (defun he-dabbrev-kill-search (pattern)
|
|
|
1036 (let ((result ())
|
|
|
1037 (regpat (if (eq (char-syntax (aref pattern 0)) ?_)
|
|
|
1038 (concat (regexp-quote pattern) "\\(\\sw\\|\\s_\\)+")
|
|
|
1039 (concat "\\<" (regexp-quote pattern) "\\(\\sw\\|\\s_\\)+")))
|
|
|
1040 (killstr (car he-expand-list)))
|
|
|
1041 (while (and (not result)
|
|
|
1042 he-expand-list)
|
|
|
1043 (while (and (not result)
|
|
|
1044 (string-match regpat killstr he-search-loc2))
|
|
|
1045 (setq result (substring killstr (match-beginning 0) (match-end 0)))
|
|
|
1046 (setq he-search-loc2 (1+ (match-beginning 0)))
|
|
|
1047 (if (or (and (> (match-beginning 0) 0)
|
|
|
1048 (memq (char-syntax (aref killstr (1- (match-beginning 0))))
|
|
|
1049 '(?_ ?w)))
|
|
|
1050 (he-string-member result he-tried-table t))
|
|
|
1051 (setq result nil))) ; ignore if bad prefix or already in table
|
|
|
1052 (if (and (not result)
|
|
|
1053 he-expand-list)
|
|
|
1054 (progn
|
|
|
1055 (setq he-expand-list (cdr he-expand-list))
|
|
|
1056 (setq killstr (car he-expand-list))
|
|
|
1057 (setq he-search-loc2 0))))
|
|
|
1058 result))
|
|
|
1059
|
|
|
1060 (defun try-expand-whole-kill (old)
|
|
|
1061 "Try to complete text with something from the kill ring.
|
|
|
1062 The argument OLD has to be nil the first call of this function, and t
|
|
|
1063 for subsequent calls (for further possible completions of the same
|
|
|
1064 string). It returns t if a new completion is found, nil otherwise."
|
|
|
1065 (let ((expansion ()))
|
|
|
1066 (if (not old)
|
|
|
1067 (progn
|
|
|
1068 (he-init-string (he-kill-beg) (point))
|
|
|
1069 (if (not (he-string-member he-search-string he-tried-table))
|
|
|
1070 (setq he-tried-table (cons he-search-string he-tried-table)))
|
|
|
1071 (setq he-expand-list
|
|
|
1072 (if (not (equal he-search-string ""))
|
|
|
1073 kill-ring))
|
|
|
1074 (setq he-search-loc2 ())))
|
|
|
1075 (if (not (equal he-search-string ""))
|
|
|
1076 (setq expansion (he-whole-kill-search he-search-string)))
|
|
|
1077 (if (not expansion)
|
|
|
1078 (progn
|
|
|
1079 (if old (he-reset-string))
|
|
|
1080 ())
|
|
|
1081 (progn
|
|
|
1082 (he-substitute-string expansion)
|
|
|
1083 t))))
|
|
|
1084
|
|
|
1085 (defun he-whole-kill-search (str)
|
|
|
1086 (let ((case-fold-search ())
|
|
|
1087 (result ())
|
|
|
1088 (str (regexp-quote str))
|
|
|
1089 (killstr (car he-expand-list))
|
|
|
1090 (pos -1))
|
|
|
1091 (while (and (not result)
|
|
|
1092 he-expand-list)
|
|
|
1093 (if (not he-search-loc2)
|
|
|
1094 (while (setq pos (string-match str killstr (1+ pos)))
|
|
|
1095 (setq he-search-loc2 (cons pos he-search-loc2))))
|
|
|
1096 (while (and (not result)
|
|
|
1097 he-search-loc2)
|
|
|
1098 (setq pos (car he-search-loc2))
|
|
|
1099 (setq he-search-loc2 (cdr he-search-loc2))
|
|
|
1100 (save-excursion
|
|
|
1101 (goto-char he-string-beg)
|
|
|
1102 (if (and (>= (- (point) pos) (point-min)) ; avoid some string GC
|
|
|
1103 (eq (char-after (- (point) pos)) (aref killstr 0))
|
|
|
1104 (search-backward (substring killstr 0 pos)
|
|
|
1105 (- (point) pos) t))
|
|
|
1106 (setq result (substring killstr pos))))
|
|
|
1107 (if (and result
|
|
|
1108 (he-string-member result he-tried-table))
|
|
|
1109 (setq result nil))) ; ignore if already in table
|
|
|
1110 (if (and (not result)
|
|
|
1111 he-expand-list)
|
|
|
1112 (progn
|
|
|
1113 (setq he-expand-list (cdr he-expand-list))
|
|
|
1114 (setq killstr (car he-expand-list))
|
|
|
1115 (setq pos -1))))
|
|
|
1116 result))
|
|
|
1117
|
|
|
1118 (defun he-kill-beg ()
|
|
|
1119 (let ((op (point)))
|
|
|
1120 (save-excursion
|
|
|
1121 (skip-syntax-backward "^w_")
|
|
|
1122 (if (= (skip-syntax-backward "w_") 0)
|
|
|
1123 op
|
|
|
1124 (point)))))
|
|
|
1125
|
|
|
1126
|
|
|
1127 (provide 'hippie-exp)
|
|
|
1128
|
|
|
1129 ;;; hippie-exp.el ends here
|
