Commit | Line | Data |
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e8af40ee | 1 | ;;; hippie-exp.el --- expand text trying various ways to find its expansion |
3b1e4dd1 | 2 | |
c90f2757 | 3 | ;; Copyright (C) 1992, 2001, 2002, 2003, 2004, 2005, |
409cc4a3 | 4 | ;; 2006, 2007, 2008 Free Software Foundation, Inc. |
b578f267 | 5 | |
3b1e4dd1 | 6 | ;; Author: Anders Holst <aho@sans.kth.se> |
41b8e71c RS |
7 | ;; Last change: 3 March 1998 |
8 | ;; Version: 1.6 | |
f5f727f8 | 9 | ;; Keywords: abbrev convenience |
3b1e4dd1 | 10 | |
652304c9 RS |
11 | ;; This file is part of GNU Emacs. |
12 | ||
eb3fa2cf | 13 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
652304c9 | 14 | ;; it under the terms of the GNU General Public License as published by |
eb3fa2cf GM |
15 | ;; the Free Software Foundation, either version 3 of the License, or |
16 | ;; (at your option) any later version. | |
652304c9 RS |
17 | |
18 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
19 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | ;; GNU General Public License for more details. | |
22 | ||
23 | ;; You should have received a copy of the GNU General Public License | |
eb3fa2cf | 24 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
652304c9 | 25 | |
76550a57 | 26 | ;;; Commentary: |
b578f267 | 27 | |
652304c9 RS |
28 | ;; `hippie-expand' is a single function for a lot of different kinds |
29 | ;; of completions and expansions. Called repeatedly it tries all | |
c60ee5e7 | 30 | ;; possible completions in succession. |
652304c9 RS |
31 | ;; Which kinds of completions to try, and in which order, is |
32 | ;; determined by the contents of `hippie-expand-try-functions-list'. | |
33 | ;; Much customization of `hippie-expand' can be made by changing the | |
34 | ;; order of, removing, or inserting new functions in this list. | |
35 | ;; Given a positive numeric argument, `hippie-expand' jumps directly | |
36 | ;; ARG functions forward in this list. Given some other argument | |
37 | ;; (a negative argument or just Ctrl-U) it undoes the tried | |
38 | ;; completion. | |
d1d1ddbd | 39 | ;; |
652304c9 RS |
40 | ;; If the variable `hippie-expand-verbose' is non-nil, `hippie-expand' |
41 | ;; outputs in a message which try-function in the list that is used | |
42 | ;; currently (ie. was used currently and will be tried first the next | |
43 | ;; time). | |
8c6677ed JB |
44 | ;; The variable `hippie-expand-max-buffers' determines in how many |
45 | ;; buffers, apart from the current, to search for expansions in. It | |
46 | ;; is used by the try-functions named "-all-buffers". | |
d1d1ddbd RS |
47 | ;; The variable `hippie-expand-ignore-buffers' is a list of regexps |
48 | ;; matching buffer names (as strings) or major modes (as atoms) of | |
49 | ;; buffers that should not be searched by the try-functions named | |
50 | ;; "-all-buffers". | |
41b8e71c RS |
51 | ;; If set, the variable `hippie-expand-only-buffers' does the opposite |
52 | ;; of `hippie-expand-ignore-buffers', in that the search is restricted | |
53 | ;; to only the kind of buffers listed. | |
54 | ;; If the variable `hippie-expand-no-restriction' is non-nil, narrowed | |
55 | ;; buffers are widened before they are searched. | |
56 | ;; The variable `hippie-expand-dabbrev-skip-space' controls whether | |
57 | ;; trailing spaces will be included in the abbreviation to search for, | |
58 | ;; which then gives the same behavior as the original `dabbrev-expand'. | |
59 | ;; The variable `hippie-expand-dabbrev-as-symbol' controls whether | |
60 | ;; characters of syntax '_' is considered part of the words to expand | |
61 | ;; dynamically. | |
652304c9 | 62 | ;; See also the macro `make-hippie-expand-function' below. |
c60ee5e7 | 63 | ;; |
652304c9 RS |
64 | ;; A short description of the current try-functions in this file: |
65 | ;; `try-complete-file-name' : very convenient to have in any buffer, | |
66 | ;; and not just in the minibuffer or (some) shell-mode. It goes | |
67 | ;; through all possible completions instead of just completing as | |
68 | ;; much as is unique. | |
69 | ;; `try-complete-file-name-partially' : To insert in the list just | |
70 | ;; before `try-complete-file-name' for those who want first to get | |
71 | ;; a file name completed only as many characters as is unique. | |
652304c9 RS |
72 | ;; `try-expand-all-abbrevs' : can be removed if you don't use abbrevs. |
73 | ;; Otherwise it looks through all abbrev-tables, starting with | |
c60ee5e7 JB |
74 | ;; the local followed by the global. |
75 | ;; `try-expand-line' : Searches the buffer for an entire line that | |
76 | ;; begins exactly as the current line. Convenient sometimes, for | |
652304c9 | 77 | ;; example as a substitute for (or complement to) the history |
8c6677ed | 78 | ;; list in shell-like buffers. At other times, only confusing. |
652304c9 RS |
79 | ;; `try-expand-line-all-buffers' : Like `try-expand-line' but searches |
80 | ;; in all buffers (except the current). (This may be a little | |
8c6677ed JB |
81 | ;; slow, don't use it unless you are really fond of `hippie-expand'.) |
82 | ;; `try-expand-list' : Tries to expand the text back to the nearest | |
83 | ;; open delimiter, to a whole list from the buffer. Convenient for | |
84 | ;; example when writing lisp or TeX. | |
c60ee5e7 JB |
85 | ;; `try-expand-list-all-buffers' : Like `try-expand-list' but searches |
86 | ;; in all buffers (except the current). | |
652304c9 RS |
87 | ;; `try-expand-dabbrev' : works exactly as dabbrev-expand (but of |
88 | ;; course in a way compatible with the other try-functions). | |
89 | ;; `try-expand-dabbrev-all-buffers' : perhaps the most useful of them, | |
90 | ;; like `dabbrev-expand' but searches all Emacs buffers (except the | |
91 | ;; current) for matching words. (No, I don't find this one | |
c60ee5e7 | 92 | ;; particularly slow.) |
510cbc92 RS |
93 | ;; `try-expand-dabbrev-visible': Searches the currently visible parts of |
94 | ;; all windows. Can be put before `try-expand-dabbrev-all-buffers' to | |
95 | ;; first try the expansions you can see. | |
96 | ;; `try-expand-dabbrev-from-kill': Searches the kill ring for a suitable | |
97 | ;; completion of the word. Good to have, just in case the word was not | |
98 | ;; found elsewhere. | |
99 | ;; `try-expand-whole-kill' : Tries to complete text with a whole entry | |
100 | ;; from the kill ring. May be good if you don't know how far up in | |
101 | ;; the kill-ring the required entry is, and don't want to mess with | |
102 | ;; "Choose Next Paste". | |
652304c9 RS |
103 | ;; `try-complete-lisp-symbol' : like `lisp-complete-symbol', but goes |
104 | ;; through all possibilities instead of completing what is unique. | |
105 | ;; Might be tedious (usually a lot of possible completions) and | |
106 | ;; since its function is much like `lisp-complete-symbol', which | |
107 | ;; already has a key of its own, you might want to remove this. | |
108 | ;; `try-complete-lisp-symbol-partially' : To insert in the list just | |
109 | ;; before `try-complete-lisp-symbol' for those who first want to get | |
c60ee5e7 | 110 | ;; completion of what is unique in the name. |
8c6677ed JB |
111 | ;; |
112 | ;; Not all of the above functions are by default in | |
113 | ;; `hippie-expand-try-functions-list'. This variable is better set | |
114 | ;; in ".emacs" to make `hippie-expand' behave maximally convenient | |
115 | ;; according to personal taste. Also, instead of loading the | |
116 | ;; variable with all kinds of try-functions above, it might be an | |
117 | ;; idea to use `make-hippie-expand-function' to construct different | |
118 | ;; `hippie-expand'-like functions, with different try-lists and bound | |
119 | ;; to different keys. It is also possible to make | |
120 | ;; `hippie-expand-try-functions-list' a buffer local variable, and | |
121 | ;; let it depend on the mode (by setting it in the mode-hooks). | |
652304c9 RS |
122 | ;; |
123 | ;; To write new try-functions, consider the following: | |
124 | ;; Each try-function takes one argument OLD which is nil the first | |
125 | ;; time the function is called and true in succeeding calls for the | |
126 | ;; same string to complete. The first time the function has to | |
127 | ;; extract the string before point to complete, and substitute the | |
128 | ;; first completion alternative for it. On following calls it has to | |
129 | ;; substitute the next possible completion for the last tried string. | |
130 | ;; The try-function is to return t as long as it finds new | |
131 | ;; possible completions. When there are no more alternatives it has | |
132 | ;; to restore the text before point to its original contents, and | |
133 | ;; return nil (don't beep or message or anything). | |
134 | ;; The try-function can (should) use the following functions: | |
135 | ;; `he-init-string' : Initializes the text to substitute to the | |
136 | ;; contents of the region BEGIN to END. Also sets the variable | |
137 | ;; `he-search-string' to the text to expand. | |
138 | ;; `he-substitute-string' : substitutes STR into the region | |
139 | ;; initialized with `he-init-string'. (An optional second argument | |
140 | ;; TRANS-CASE non-nil, means transfer of case from the abbreviation | |
141 | ;; to the expansion is ok if that is enabled in the buffer.) | |
142 | ;; `he-reset-string' : Resets the initialized region to its original | |
143 | ;; contents. | |
144 | ;; There is also a variable: `he-tried-table' which is meant to contain | |
c60ee5e7 | 145 | ;; all tried expansions so far. The try-function can check this |
652304c9 | 146 | ;; variable to see whether an expansion has already been tried |
510cbc92 | 147 | ;; (hint: `he-string-member'). |
652304c9 | 148 | ;; |
8c6677ed | 149 | ;; Known bugs |
652304c9 RS |
150 | ;; |
151 | ;; It may happen that some completion suggestion occurs twice, in | |
c60ee5e7 | 152 | ;; spite of the use of `he-tried-table' to prevent that. This is |
652304c9 RS |
153 | ;; because different try-functions may try to complete different |
154 | ;; lengths of text, and thus put different amounts of the | |
510cbc92 RS |
155 | ;; text in `he-tried-table'. Anyway this seems to occur seldom enough |
156 | ;; not to be too disturbing. Also it should NOT be possible for the | |
652304c9 RS |
157 | ;; opposite situation to occur, that `hippie-expand' misses some |
158 | ;; suggestion because it thinks it has already tried it. | |
159 | ;; | |
8c6677ed | 160 | ;; Acknowledgement |
652304c9 RS |
161 | ;; |
162 | ;; I want to thank Mikael Djurfeldt in discussions with whom the idea | |
163 | ;; of this function took form. | |
164 | ;; I am also grateful to all those who have given me suggestions on | |
510cbc92 | 165 | ;; how to improve it, and all those who helped to find and remove bugs. |
652304c9 RS |
166 | ;; |
167 | ||
76550a57 | 168 | ;;; Code: |
652304c9 | 169 | |
ddb6e2e2 DL |
170 | (eval-when-compile (require 'comint)) |
171 | ||
94114394 RS |
172 | (defgroup hippie-expand nil |
173 | "Expand text trying various ways to find its expansion." | |
ddb6e2e2 DL |
174 | :link '(custom-manual "(autotype)Hippie Expand") |
175 | :link '(emacs-commentary-link "hippie-exp") | |
f5f727f8 DN |
176 | :group 'abbrev |
177 | :group 'convenience) | |
94114394 | 178 | |
652304c9 RS |
179 | (defvar he-num -1) |
180 | ||
8c6677ed | 181 | (defvar he-string-beg (make-marker)) |
652304c9 | 182 | |
8c6677ed | 183 | (defvar he-string-end (make-marker)) |
652304c9 RS |
184 | |
185 | (defvar he-search-string ()) | |
186 | ||
187 | (defvar he-expand-list ()) | |
188 | ||
189 | (defvar he-tried-table ()) | |
190 | ||
8c6677ed | 191 | (defvar he-search-loc (make-marker)) |
652304c9 | 192 | |
510cbc92 RS |
193 | (defvar he-search-loc2 ()) |
194 | ||
652304c9 RS |
195 | (defvar he-search-bw ()) |
196 | ||
197 | (defvar he-search-bufs ()) | |
198 | ||
8c6677ed JB |
199 | (defvar he-searched-n-bufs ()) |
200 | ||
510cbc92 RS |
201 | (defvar he-search-window ()) |
202 | ||
8c6677ed | 203 | ;;;###autoload |
ddb6e2e2 DL |
204 | (defcustom hippie-expand-try-functions-list |
205 | '(try-complete-file-name-partially | |
206 | try-complete-file-name | |
207 | try-expand-all-abbrevs | |
208 | try-expand-list | |
209 | try-expand-line | |
210 | try-expand-dabbrev | |
211 | try-expand-dabbrev-all-buffers | |
212 | try-expand-dabbrev-from-kill | |
213 | try-complete-lisp-symbol-partially | |
214 | try-complete-lisp-symbol) | |
652304c9 RS |
215 | "The list of expansion functions tried in order by `hippie-expand'. |
216 | To change the behavior of `hippie-expand', remove, change the order of, | |
ddb6e2e2 DL |
217 | or insert functions in this list." |
218 | :type '(repeat function) | |
219 | :group 'hippie-expand) | |
652304c9 | 220 | |
8c6677ed | 221 | ;;;###autoload |
94114394 RS |
222 | (defcustom hippie-expand-verbose t |
223 | "*Non-nil makes `hippie-expand' output which function it is trying." | |
224 | :type 'boolean | |
225 | :group 'hippie-expand) | |
652304c9 | 226 | |
41b8e71c RS |
227 | ;;;###autoload |
228 | (defcustom hippie-expand-dabbrev-skip-space nil | |
229 | "*Non-nil means tolerate trailing spaces in the abbreviation to expand." | |
230 | :group 'hippie-expand | |
231 | :type 'boolean) | |
232 | ||
233 | ;;;###autoload | |
234 | (defcustom hippie-expand-dabbrev-as-symbol t | |
235 | "*Non-nil means expand as symbols, i.e. syntax `_' is considered a letter." | |
236 | :group 'hippie-expand | |
237 | :type 'boolean) | |
238 | ||
239 | ;;;###autoload | |
240 | (defcustom hippie-expand-no-restriction t | |
241 | "*Non-nil means that narrowed buffers are widened during search." | |
242 | :group 'hippie-expand | |
243 | :type 'boolean) | |
244 | ||
8c6677ed | 245 | ;;;###autoload |
94114394 | 246 | (defcustom hippie-expand-max-buffers () |
8c6677ed | 247 | "*The maximum number of buffers (apart from the current) searched. |
94114394 RS |
248 | If nil, all buffers are searched." |
249 | :type '(choice (const :tag "All" nil) | |
250 | integer) | |
251 | :group 'hippie-expand) | |
8c6677ed | 252 | |
d1d1ddbd | 253 | ;;;###autoload |
94114394 | 254 | (defcustom hippie-expand-ignore-buffers '("^ \\*.*\\*$" dired-mode) |
d1d1ddbd RS |
255 | "*A list specifying which buffers not to search (if not current). |
256 | Can contain both regexps matching buffer names (as strings) and major modes | |
94114394 RS |
257 | \(as atoms)" |
258 | :type '(repeat (choice regexp (symbol :tag "Major Mode"))) | |
259 | :group 'hippie-expand) | |
d1d1ddbd | 260 | |
41b8e71c RS |
261 | ;;;###autoload |
262 | (defcustom hippie-expand-only-buffers () | |
263 | "*A list specifying the only buffers to search (in addition to current). | |
264 | Can contain both regexps matching buffer names (as strings) and major modes | |
0ff9b955 | 265 | \(as atoms). If non-nil, this variable overrides the variable |
41b8e71c RS |
266 | `hippie-expand-ignore-buffers'." |
267 | :type '(repeat (choice regexp (symbol :tag "Major Mode"))) | |
268 | :group 'hippie-expand) | |
269 | ||
8c6677ed | 270 | ;;;###autoload |
652304c9 RS |
271 | (defun hippie-expand (arg) |
272 | "Try to expand text before point, using multiple methods. | |
273 | The expansion functions in `hippie-expand-try-functions-list' are | |
274 | tried in order, until a possible expansion is found. Repeated | |
275 | application of `hippie-expand' inserts successively possible | |
c60ee5e7 | 276 | expansions. |
652304c9 | 277 | With a positive numeric argument, jumps directly to the ARG next |
c60ee5e7 JB |
278 | function in this list. With a negative argument or just \\[universal-argument], |
279 | undoes the expansion." | |
652304c9 | 280 | (interactive "P") |
c60ee5e7 | 281 | (if (or (not arg) |
652304c9 RS |
282 | (and (integerp arg) (> arg 0))) |
283 | (let ((first (or (= he-num -1) | |
284 | (not (equal this-command last-command))))) | |
285 | (if first | |
286 | (progn | |
287 | (setq he-num -1) | |
288 | (setq he-tried-table nil))) | |
289 | (if arg | |
290 | (if (not first) (he-reset-string)) | |
291 | (setq arg 0)) | |
292 | (let ((i (max (+ he-num arg) 0))) | |
293 | (while (not (or (>= i (length hippie-expand-try-functions-list)) | |
c60ee5e7 | 294 | (apply (nth i hippie-expand-try-functions-list) |
652304c9 RS |
295 | (list (= he-num i))))) |
296 | (setq i (1+ i))) | |
297 | (setq he-num i)) | |
298 | (if (>= he-num (length hippie-expand-try-functions-list)) | |
299 | (progn | |
300 | (setq he-num -1) | |
301 | (if first | |
302 | (message "No expansion found") | |
303 | (message "No further expansions found")) | |
304 | (ding)) | |
8c6677ed | 305 | (if (and hippie-expand-verbose |
510cbc92 | 306 | (not (window-minibuffer-p (selected-window)))) |
32561aba | 307 | (message "Using %s" |
41b8e71c | 308 | (nth he-num hippie-expand-try-functions-list))))) |
510cbc92 RS |
309 | (if (and (>= he-num 0) |
310 | (eq (marker-buffer he-string-beg) (current-buffer))) | |
652304c9 RS |
311 | (progn |
312 | (setq he-num -1) | |
313 | (he-reset-string) | |
8c6677ed | 314 | (if (and hippie-expand-verbose |
510cbc92 | 315 | (not (window-minibuffer-p (selected-window)))) |
652304c9 | 316 | (message "Undoing expansions")))))) |
8c6677ed | 317 | |
652304c9 RS |
318 | ;; Initializes the region to expand (to between BEG and END). |
319 | (defun he-init-string (beg end) | |
8c6677ed JB |
320 | (set-marker he-string-beg beg) |
321 | (set-marker he-string-end end) | |
41b8e71c | 322 | (setq he-search-string (buffer-substring-no-properties beg end))) |
652304c9 RS |
323 | |
324 | ;; Resets the expanded region to its original contents. | |
325 | (defun he-reset-string () | |
8c6677ed | 326 | (let ((newpos (point-marker))) |
8c6677ed JB |
327 | (goto-char he-string-beg) |
328 | (insert he-search-string) | |
510cbc92 RS |
329 | (delete-region (point) he-string-end) |
330 | (goto-char newpos))) | |
652304c9 RS |
331 | |
332 | ;; Substitutes an expansion STR into the correct region (the region | |
c60ee5e7 | 333 | ;; initialized with `he-init-string'). |
652304c9 RS |
334 | ;; An optional argument TRANS-CASE means that it is ok to transfer case |
335 | ;; from the abbreviation to the expansion if that is possible, and is | |
336 | ;; enabled in the buffer. | |
337 | (defun he-substitute-string (str &optional trans-case) | |
338 | (let ((trans-case (and trans-case | |
339 | case-replace | |
510cbc92 RS |
340 | case-fold-search)) |
341 | (newpos (point-marker)) | |
342 | (subst ())) | |
652304c9 | 343 | (goto-char he-string-beg) |
510cbc92 RS |
344 | (setq subst (if trans-case (he-transfer-case he-search-string str) str)) |
345 | (setq he-tried-table (cons subst he-tried-table)) | |
346 | (insert subst) | |
347 | (delete-region (point) he-string-end) | |
348 | (goto-char newpos))) | |
349 | ||
350 | (defun he-capitalize-first (str) | |
351 | (save-match-data | |
352 | (if (string-match "\\Sw*\\(\\sw\\).*" str) | |
353 | (let ((res (downcase str)) | |
354 | (no (match-beginning 1))) | |
355 | (aset res no (upcase (aref str no))) | |
356 | res) | |
357 | str))) | |
652304c9 RS |
358 | |
359 | (defun he-ordinary-case-p (str) | |
360 | (or (string= str (downcase str)) | |
361 | (string= str (upcase str)) | |
510cbc92 RS |
362 | (string= str (capitalize str)) |
363 | (string= str (he-capitalize-first str)))) | |
364 | ||
365 | (defun he-transfer-case (from-str to-str) | |
366 | (cond ((string= from-str (substring to-str 0 (min (length from-str) | |
367 | (length to-str)))) | |
368 | to-str) | |
369 | ((not (he-ordinary-case-p to-str)) | |
8d392c8e | 370 | to-str) |
510cbc92 RS |
371 | ((string= from-str (downcase from-str)) |
372 | (downcase to-str)) | |
373 | ((string= from-str (upcase from-str)) | |
374 | (upcase to-str)) | |
375 | ((string= from-str (he-capitalize-first from-str)) | |
376 | (he-capitalize-first to-str)) | |
377 | ((string= from-str (capitalize from-str)) | |
378 | (capitalize to-str)) | |
379 | (t | |
380 | to-str))) | |
381 | ||
652304c9 RS |
382 | |
383 | ;; Check if STR is a member of LST. | |
0ff9b955 | 384 | ;; Transform to the final case if optional TRANS-CASE is non-nil. |
510cbc92 RS |
385 | (defun he-string-member (str lst &optional trans-case) |
386 | (if str | |
387 | (member (if (and trans-case | |
388 | case-replace | |
389 | case-fold-search) | |
390 | (he-transfer-case he-search-string str) | |
391 | str) | |
392 | lst))) | |
652304c9 | 393 | |
41b8e71c RS |
394 | ;; Check if current buffer matches any atom or regexp in LST. |
395 | ;; Atoms are interpreted as major modes, strings as regexps mathing the name. | |
396 | (defun he-buffer-member (lst) | |
397 | (or (memq major-mode lst) | |
398 | (progn | |
399 | (while (and lst | |
400 | (or (not (stringp (car lst))) | |
401 | (not (string-match (car lst) (buffer-name))))) | |
402 | (setq lst (cdr lst))) | |
403 | lst))) | |
d1d1ddbd | 404 | |
652304c9 RS |
405 | ;; For the real hippie-expand enthusiast: A macro that makes it |
406 | ;; possible to use many functions like hippie-expand, but with | |
407 | ;; different try-functions-lists. | |
408 | ;; Usage is for example: | |
409 | ;; (fset 'my-complete-file (make-hippie-expand-function | |
410 | ;; '(try-complete-file-name-partially | |
411 | ;; try-complete-file-name))) | |
412 | ;; (fset 'my-complete-line (make-hippie-expand-function | |
413 | ;; '(try-expand-line | |
414 | ;; try-expand-line-all-buffers))) | |
c60ee5e7 | 415 | ;; |
8c6677ed | 416 | ;;;###autoload |
652304c9 RS |
417 | (defmacro make-hippie-expand-function (try-list &optional verbose) |
418 | "Construct a function similar to `hippie-expand'. | |
419 | Make it use the expansion functions in TRY-LIST. An optional second | |
420 | argument VERBOSE non-nil makes the function verbose." | |
d7d20e6a | 421 | `(function (lambda (arg) |
c60ee5e7 | 422 | ,(concat |
d7d20e6a GM |
423 | "Try to expand text before point, using the following functions: \n" |
424 | (mapconcat 'prin1-to-string (eval try-list) ", ")) | |
425 | (interactive "P") | |
426 | (let ((hippie-expand-try-functions-list ,try-list) | |
427 | (hippie-expand-verbose ,verbose)) | |
428 | (hippie-expand arg))))) | |
652304c9 RS |
429 | |
430 | ||
431 | ;;; Here follows the try-functions and their requisites: | |
432 | ||
510cbc92 | 433 | |
652304c9 RS |
434 | (defun try-complete-file-name (old) |
435 | "Try to complete text as a file name. | |
436 | The argument OLD has to be nil the first call of this function, and t | |
437 | for subsequent calls (for further possible completions of the same | |
438 | string). It returns t if a new completion is found, nil otherwise." | |
439 | (if (not old) | |
c60ee5e7 | 440 | (progn |
652304c9 | 441 | (he-init-string (he-file-name-beg) (point)) |
510cbc92 RS |
442 | (let ((name-part (he-file-name-nondirectory he-search-string)) |
443 | (dir-part (expand-file-name (or (he-file-name-directory | |
652304c9 RS |
444 | he-search-string) "")))) |
445 | (if (not (he-string-member name-part he-tried-table)) | |
446 | (setq he-tried-table (cons name-part he-tried-table))) | |
447 | (if (and (not (equal he-search-string "")) | |
510cbc92 | 448 | (he-file-directory-p dir-part)) |
c60ee5e7 | 449 | (setq he-expand-list (sort (file-name-all-completions |
652304c9 RS |
450 | name-part |
451 | dir-part) | |
452 | 'string-lessp)) | |
453 | (setq he-expand-list ()))))) | |
454 | ||
455 | (while (and he-expand-list | |
456 | (he-string-member (car he-expand-list) he-tried-table)) | |
457 | (setq he-expand-list (cdr he-expand-list))) | |
458 | (if (null he-expand-list) | |
459 | (progn | |
510cbc92 | 460 | (if old (he-reset-string)) |
652304c9 | 461 | ()) |
510cbc92 RS |
462 | (let ((filename (he-concat-directory-file-name |
463 | (he-file-name-directory he-search-string) | |
464 | (car he-expand-list)))) | |
652304c9 | 465 | (he-substitute-string filename) |
510cbc92 | 466 | (setq he-tried-table (cons (car he-expand-list) (cdr he-tried-table))) |
652304c9 RS |
467 | (setq he-expand-list (cdr he-expand-list)) |
468 | t))) | |
469 | ||
470 | (defun try-complete-file-name-partially (old) | |
471 | "Try to complete text as a file name, as many characters as unique. | |
472 | The argument OLD has to be nil the first call of this function. It | |
c60ee5e7 | 473 | returns t if a unique, possibly partial, completion is found, nil |
652304c9 RS |
474 | otherwise." |
475 | (let ((expansion ())) | |
476 | (if (not old) | |
c60ee5e7 | 477 | (progn |
652304c9 | 478 | (he-init-string (he-file-name-beg) (point)) |
510cbc92 RS |
479 | (let ((name-part (he-file-name-nondirectory he-search-string)) |
480 | (dir-part (expand-file-name (or (he-file-name-directory | |
652304c9 RS |
481 | he-search-string) "")))) |
482 | (if (and (not (equal he-search-string "")) | |
510cbc92 | 483 | (he-file-directory-p dir-part)) |
652304c9 RS |
484 | (setq expansion (file-name-completion name-part |
485 | dir-part))) | |
486 | (if (or (eq expansion t) | |
510cbc92 RS |
487 | (string= expansion name-part) |
488 | (he-string-member expansion he-tried-table)) | |
652304c9 RS |
489 | (setq expansion ()))))) |
490 | ||
491 | (if (not expansion) | |
492 | (progn | |
510cbc92 | 493 | (if old (he-reset-string)) |
652304c9 | 494 | ()) |
510cbc92 RS |
495 | (let ((filename (he-concat-directory-file-name |
496 | (he-file-name-directory he-search-string) | |
497 | expansion))) | |
652304c9 | 498 | (he-substitute-string filename) |
510cbc92 | 499 | (setq he-tried-table (cons expansion (cdr he-tried-table))) |
652304c9 RS |
500 | t)))) |
501 | ||
510cbc92 RS |
502 | (defvar he-file-name-chars |
503 | (cond ((memq system-type '(vax-vms axp-vms)) | |
504 | "-a-zA-Z0-9_/.,~^#$+=:\\[\\]") | |
c60ee5e7 | 505 | ((memq system-type '(ms-dos windows-nt cygwin)) |
510cbc92 RS |
506 | "-a-zA-Z0-9_/.,~^#$+=:\\\\") |
507 | (t ;; More strange file formats ? | |
508 | "-a-zA-Z0-9_/.,~^#$+=")) | |
509 | "Characters that are considered part of the file name to expand.") | |
510 | ||
652304c9 | 511 | (defun he-file-name-beg () |
de073e06 KH |
512 | (let ((op (point))) |
513 | (save-excursion | |
514 | (skip-chars-backward he-file-name-chars) | |
515 | (if (> (skip-syntax-backward "w") 0) ;; No words with non-file chars | |
41b8e71c RS |
516 | op |
517 | (point))))) | |
652304c9 | 518 | |
510cbc92 | 519 | ;; Thanks go to Richard Levitte <levitte@e.kth.se> who helped to make these |
c60ee5e7 | 520 | ;; work under VMS, and to David Hughes <ukchugd@ukpmr.cs.philips.nl> who |
510cbc92 RS |
521 | ;; helped to make it work on PC. |
522 | (defun he-file-name-nondirectory (file) | |
523 | "Fix to make `file-name-nondirectory' work for hippie-expand under VMS." | |
524 | (if (memq system-type '(axp-vms vax-vms)) | |
525 | (let ((n (file-name-nondirectory file))) | |
526 | (if (string-match "^\\(\\[.*\\)\\.\\([^\\.]*\\)$" n) | |
527 | (concat "[." (substring n (match-beginning 2) (match-end 2))) | |
528 | n)) | |
529 | (file-name-nondirectory file))) | |
530 | ||
531 | (defun he-file-name-directory (file) | |
532 | "Fix to make `file-name-directory' work for hippie-expand under VMS." | |
533 | (if (memq system-type '(axp-vms vax-vms)) | |
534 | (let ((n (file-name-nondirectory file)) | |
535 | (d (file-name-directory file))) | |
536 | (if (string-match "^\\(\\[.*\\)\\.\\([^\\.]*\\)$" n) | |
537 | (concat d (substring n (match-beginning 1) (match-end 1)) "]") | |
538 | d)) | |
539 | (file-name-directory file))) | |
540 | ||
541 | (defun he-file-directory-p (file) | |
542 | "Fix to make `file-directory-p' work for hippie-expand under VMS." | |
543 | (if (memq system-type '(vax-vms axp-vms)) | |
544 | (or (file-directory-p file) | |
545 | (file-directory-p (concat file "[000000]"))) | |
a0341d13 | 546 | (file-directory-p file))) |
c60ee5e7 | 547 | |
510cbc92 RS |
548 | (defun he-concat-directory-file-name (dir-part name-part) |
549 | "Try to slam together two parts of a file specification, system dependently." | |
a0341d13 RS |
550 | (cond ((null dir-part) name-part) |
551 | ((memq system-type '(axp-vms vax-vms)) | |
510cbc92 RS |
552 | (if (and (string= (substring dir-part -1) "]") |
553 | (string= (substring name-part 0 2) "[.")) | |
554 | (concat (substring dir-part 0 -1) (substring name-part 1)) | |
555 | (concat dir-part name-part))) | |
b86b9918 | 556 | ((memq system-type '(ms-dos w32)) |
510cbc92 RS |
557 | (if (and (string-match "\\\\" dir-part) |
558 | (not (string-match "/" dir-part)) | |
559 | (= (aref name-part (1- (length name-part))) ?/)) | |
560 | (aset name-part (1- (length name-part)) ?\\)) | |
561 | (concat dir-part name-part)) | |
c60ee5e7 | 562 | (t |
510cbc92 | 563 | (concat dir-part name-part)))) |
c60ee5e7 | 564 | |
652304c9 RS |
565 | (defun try-complete-lisp-symbol (old) |
566 | "Try to complete word as an Emacs Lisp symbol. | |
567 | The argument OLD has to be nil the first call of this function, and t | |
568 | for subsequent calls (for further possible completions of the same | |
569 | string). It returns t if a new completion is found, nil otherwise." | |
570 | (if (not old) | |
c60ee5e7 | 571 | (progn |
652304c9 RS |
572 | (he-init-string (he-lisp-symbol-beg) (point)) |
573 | (if (not (he-string-member he-search-string he-tried-table)) | |
574 | (setq he-tried-table (cons he-search-string he-tried-table))) | |
c60ee5e7 | 575 | (setq he-expand-list |
652304c9 RS |
576 | (and (not (equal he-search-string "")) |
577 | (sort (all-completions he-search-string obarray | |
578 | (function (lambda (sym) | |
579 | (or (boundp sym) | |
580 | (fboundp sym) | |
581 | (symbol-plist sym))))) | |
582 | 'string-lessp))))) | |
583 | (while (and he-expand-list | |
584 | (he-string-member (car he-expand-list) he-tried-table)) | |
585 | (setq he-expand-list (cdr he-expand-list))) | |
586 | (if (null he-expand-list) | |
587 | (progn | |
510cbc92 | 588 | (if old (he-reset-string)) |
652304c9 RS |
589 | ()) |
590 | (progn | |
591 | (he-substitute-string (car he-expand-list)) | |
652304c9 RS |
592 | (setq he-expand-list (cdr he-expand-list)) |
593 | t))) | |
594 | ||
595 | (defun try-complete-lisp-symbol-partially (old) | |
596 | "Try to complete as an Emacs Lisp symbol, as many characters as unique. | |
597 | The argument OLD has to be nil the first call of this function. It | |
c60ee5e7 | 598 | returns t if a unique, possibly partial, completion is found, nil |
652304c9 RS |
599 | otherwise." |
600 | (let ((expansion ())) | |
601 | (if (not old) | |
c60ee5e7 | 602 | (progn |
652304c9 RS |
603 | (he-init-string (he-lisp-symbol-beg) (point)) |
604 | (if (not (string= he-search-string "")) | |
c60ee5e7 | 605 | (setq expansion |
652304c9 RS |
606 | (try-completion he-search-string obarray |
607 | (function (lambda (sym) | |
608 | (or (boundp sym) | |
609 | (fboundp sym) | |
610 | (symbol-plist sym))))))) | |
611 | (if (or (eq expansion t) | |
510cbc92 RS |
612 | (string= expansion he-search-string) |
613 | (he-string-member expansion he-tried-table)) | |
652304c9 RS |
614 | (setq expansion ())))) |
615 | ||
616 | (if (not expansion) | |
617 | (progn | |
510cbc92 | 618 | (if old (he-reset-string)) |
652304c9 RS |
619 | ()) |
620 | (progn | |
621 | (he-substitute-string expansion) | |
652304c9 RS |
622 | t)))) |
623 | ||
624 | (defun he-lisp-symbol-beg () | |
de073e06 KH |
625 | (save-excursion |
626 | (skip-syntax-backward "w_") | |
627 | (point))) | |
652304c9 RS |
628 | |
629 | (defun try-expand-line (old) | |
630 | "Try to complete the current line to an entire line in the buffer. | |
631 | The argument OLD has to be nil the first call of this function, and t | |
632 | for subsequent calls (for further possible completions of the same | |
633 | string). It returns t if a new completion is found, nil otherwise." | |
634 | (let ((expansion ()) | |
635 | (strip-prompt (and (get-buffer-process (current-buffer)) | |
d7210472 | 636 | comint-use-prompt-regexp |
8c6677ed | 637 | comint-prompt-regexp))) |
652304c9 RS |
638 | (if (not old) |
639 | (progn | |
640 | (he-init-string (he-line-beg strip-prompt) (point)) | |
8c6677ed | 641 | (set-marker he-search-loc he-string-beg) |
652304c9 RS |
642 | (setq he-search-bw t))) |
643 | ||
644 | (if (not (equal he-search-string "")) | |
645 | (save-excursion | |
41b8e71c RS |
646 | (save-restriction |
647 | (if hippie-expand-no-restriction | |
648 | (widen)) | |
649 | ;; Try looking backward unless inhibited. | |
650 | (if he-search-bw | |
c60ee5e7 | 651 | (progn |
41b8e71c RS |
652 | (goto-char he-search-loc) |
653 | (setq expansion (he-line-search he-search-string | |
654 | strip-prompt t)) | |
655 | (set-marker he-search-loc (point)) | |
656 | (if (not expansion) | |
657 | (progn | |
658 | (set-marker he-search-loc he-string-end) | |
659 | (setq he-search-bw ()))))) | |
660 | ||
661 | (if (not expansion) ; Then look forward. | |
c60ee5e7 | 662 | (progn |
41b8e71c | 663 | (goto-char he-search-loc) |
c60ee5e7 | 664 | (setq expansion (he-line-search he-search-string |
41b8e71c RS |
665 | strip-prompt nil)) |
666 | (set-marker he-search-loc (point))))))) | |
652304c9 RS |
667 | |
668 | (if (not expansion) | |
669 | (progn | |
510cbc92 | 670 | (if old (he-reset-string)) |
652304c9 RS |
671 | ()) |
672 | (progn | |
673 | (he-substitute-string expansion t) | |
652304c9 RS |
674 | t)))) |
675 | ||
676 | (defun try-expand-line-all-buffers (old) | |
677 | "Try to complete the current line, searching all other buffers. | |
678 | The argument OLD has to be nil the first call of this function, and t | |
679 | for subsequent calls (for further possible completions of the same | |
680 | string). It returns t if a new completion is found, nil otherwise." | |
681 | (let ((expansion ()) | |
682 | (strip-prompt (and (get-buffer-process (current-buffer)) | |
d7210472 | 683 | comint-use-prompt-regexp |
8c6677ed | 684 | comint-prompt-regexp)) |
510cbc92 RS |
685 | (buf (current-buffer)) |
686 | (orig-case-fold-search case-fold-search)) | |
652304c9 RS |
687 | (if (not old) |
688 | (progn | |
689 | (he-init-string (he-line-beg strip-prompt) (point)) | |
8c6677ed | 690 | (setq he-search-bufs (buffer-list)) |
510cbc92 | 691 | (setq he-searched-n-bufs 0) |
8c6677ed | 692 | (set-marker he-search-loc 1 (car he-search-bufs)))) |
652304c9 RS |
693 | |
694 | (if (not (equal he-search-string "")) | |
c60ee5e7 | 695 | (while (and he-search-bufs |
510cbc92 RS |
696 | (not expansion) |
697 | (or (not hippie-expand-max-buffers) | |
698 | (< he-searched-n-bufs hippie-expand-max-buffers))) | |
652304c9 RS |
699 | (set-buffer (car he-search-bufs)) |
700 | (if (and (not (eq (current-buffer) buf)) | |
41b8e71c RS |
701 | (if hippie-expand-only-buffers |
702 | (he-buffer-member hippie-expand-only-buffers) | |
703 | (not (he-buffer-member hippie-expand-ignore-buffers)))) | |
652304c9 | 704 | (save-excursion |
41b8e71c RS |
705 | (save-restriction |
706 | (if hippie-expand-no-restriction | |
707 | (widen)) | |
708 | (goto-char he-search-loc) | |
709 | (setq strip-prompt (and (get-buffer-process (current-buffer)) | |
d7210472 | 710 | comint-use-prompt-regexp |
41b8e71c | 711 | comint-prompt-regexp)) |
c60ee5e7 | 712 | (setq expansion |
41b8e71c RS |
713 | (let ((case-fold-search orig-case-fold-search)) |
714 | (he-line-search he-search-string | |
715 | strip-prompt nil))) | |
716 | (set-marker he-search-loc (point)) | |
717 | (if (not expansion) | |
718 | (progn | |
719 | (setq he-search-bufs (cdr he-search-bufs)) | |
720 | (setq he-searched-n-bufs (1+ he-searched-n-bufs)) | |
721 | (set-marker he-search-loc 1 (car he-search-bufs)))))) | |
510cbc92 RS |
722 | (setq he-search-bufs (cdr he-search-bufs)) |
723 | (set-marker he-search-loc 1 (car he-search-bufs))))) | |
652304c9 RS |
724 | |
725 | (set-buffer buf) | |
726 | (if (not expansion) | |
727 | (progn | |
510cbc92 | 728 | (if old (he-reset-string)) |
652304c9 RS |
729 | ()) |
730 | (progn | |
731 | (he-substitute-string expansion t) | |
732 | t)))) | |
733 | ||
c60ee5e7 | 734 | (defun he-line-search (str strip-prompt reverse) |
652304c9 RS |
735 | (let ((result ())) |
736 | (while (and (not result) | |
737 | (if reverse | |
c60ee5e7 | 738 | (re-search-backward |
652304c9 RS |
739 | (he-line-search-regexp str strip-prompt) |
740 | nil t) | |
741 | (re-search-forward | |
742 | (he-line-search-regexp str strip-prompt) | |
743 | nil t))) | |
d7d20e6a GM |
744 | (setq result (buffer-substring-no-properties (match-end 1) |
745 | (match-end 0))) | |
510cbc92 RS |
746 | (if (he-string-member result he-tried-table t) |
747 | (setq result nil))) ; if already in table, ignore | |
652304c9 RS |
748 | result)) |
749 | ||
750 | (defun he-line-beg (strip-prompt) | |
751 | (save-excursion | |
c60ee5e7 | 752 | (if (re-search-backward (he-line-search-regexp "" strip-prompt) |
652304c9 RS |
753 | (save-excursion (beginning-of-line) |
754 | (point)) t) | |
755 | (match-beginning 2) | |
652304c9 RS |
756 | (point)))) |
757 | ||
758 | (defun he-line-search-regexp (pat strip-prompt) | |
759 | (if strip-prompt | |
8c6677ed | 760 | (concat "\\(" comint-prompt-regexp "\\|^\\s-*\\)\\(" |
652304c9 RS |
761 | (regexp-quote pat) |
762 | "[^\n]*[^ \t\n]\\)") | |
c60ee5e7 | 763 | (concat "^\\(\\s-*\\)\\(" |
652304c9 RS |
764 | (regexp-quote pat) |
765 | "[^\n]*[^ \t\n]\\)"))) | |
766 | ||
8c6677ed JB |
767 | (defun try-expand-list (old) |
768 | "Try to complete the current beginning of a list. | |
769 | The argument OLD has to be nil the first call of this function, and t | |
770 | for subsequent calls (for further possible completions of the same | |
771 | string). It returns t if a new completion is found, nil otherwise." | |
772 | (let ((expansion ())) | |
773 | (if (not old) | |
774 | (progn | |
775 | (he-init-string (he-list-beg) (point)) | |
776 | (set-marker he-search-loc he-string-beg) | |
777 | (setq he-search-bw t))) | |
778 | ||
779 | (if (not (equal he-search-string "")) | |
780 | (save-excursion | |
41b8e71c RS |
781 | (save-restriction |
782 | (if hippie-expand-no-restriction | |
783 | (widen)) | |
784 | ;; Try looking backward unless inhibited. | |
785 | (if he-search-bw | |
c60ee5e7 | 786 | (progn |
41b8e71c RS |
787 | (goto-char he-search-loc) |
788 | (setq expansion (he-list-search he-search-string t)) | |
789 | (set-marker he-search-loc (point)) | |
790 | (if (not expansion) | |
791 | (progn | |
792 | (set-marker he-search-loc he-string-end) | |
793 | (setq he-search-bw ()))))) | |
794 | ||
795 | (if (not expansion) ; Then look forward. | |
c60ee5e7 | 796 | (progn |
41b8e71c RS |
797 | (goto-char he-search-loc) |
798 | (setq expansion (he-list-search he-search-string nil)) | |
799 | (set-marker he-search-loc (point))))))) | |
8c6677ed JB |
800 | |
801 | (if (not expansion) | |
802 | (progn | |
803 | (if old (he-reset-string)) | |
804 | ()) | |
805 | (progn | |
806 | (he-substitute-string expansion t) | |
8c6677ed JB |
807 | t)))) |
808 | ||
809 | (defun try-expand-list-all-buffers (old) | |
810 | "Try to complete the current list, searching all other buffers. | |
811 | The argument OLD has to be nil the first call of this function, and t | |
812 | for subsequent calls (for further possible completions of the same | |
813 | string). It returns t if a new completion is found, nil otherwise." | |
814 | (let ((expansion ()) | |
510cbc92 RS |
815 | (buf (current-buffer)) |
816 | (orig-case-fold-search case-fold-search)) | |
8c6677ed JB |
817 | (if (not old) |
818 | (progn | |
819 | (he-init-string (he-list-beg) (point)) | |
820 | (setq he-search-bufs (buffer-list)) | |
510cbc92 | 821 | (setq he-searched-n-bufs 0) |
8c6677ed JB |
822 | (set-marker he-search-loc 1 (car he-search-bufs)))) |
823 | ||
824 | (if (not (equal he-search-string "")) | |
c60ee5e7 | 825 | (while (and he-search-bufs |
510cbc92 RS |
826 | (not expansion) |
827 | (or (not hippie-expand-max-buffers) | |
828 | (< he-searched-n-bufs hippie-expand-max-buffers))) | |
8c6677ed JB |
829 | (set-buffer (car he-search-bufs)) |
830 | (if (and (not (eq (current-buffer) buf)) | |
41b8e71c RS |
831 | (if hippie-expand-only-buffers |
832 | (he-buffer-member hippie-expand-only-buffers) | |
833 | (not (he-buffer-member hippie-expand-ignore-buffers)))) | |
8c6677ed | 834 | (save-excursion |
41b8e71c RS |
835 | (save-restriction |
836 | (if hippie-expand-no-restriction | |
837 | (widen)) | |
838 | (goto-char he-search-loc) | |
c60ee5e7 | 839 | (setq expansion |
41b8e71c RS |
840 | (let ((case-fold-search orig-case-fold-search)) |
841 | (he-list-search he-search-string nil))) | |
842 | (set-marker he-search-loc (point)) | |
843 | (if (not expansion) | |
844 | (progn | |
845 | (setq he-search-bufs (cdr he-search-bufs)) | |
846 | (setq he-searched-n-bufs (1+ he-searched-n-bufs)) | |
847 | (set-marker he-search-loc 1 (car he-search-bufs)))))) | |
510cbc92 RS |
848 | (setq he-search-bufs (cdr he-search-bufs)) |
849 | (set-marker he-search-loc 1 (car he-search-bufs))))) | |
8c6677ed JB |
850 | |
851 | (set-buffer buf) | |
852 | (if (not expansion) | |
853 | (progn | |
510cbc92 | 854 | (if old (he-reset-string)) |
8c6677ed JB |
855 | ()) |
856 | (progn | |
857 | (he-substitute-string expansion t) | |
858 | t)))) | |
859 | ||
c60ee5e7 | 860 | (defun he-list-search (str reverse) |
8c6677ed | 861 | (let ((result ()) |
510cbc92 | 862 | beg pos err) |
8c6677ed JB |
863 | (while (and (not result) |
864 | (if reverse | |
865 | (search-backward str nil t) | |
866 | (search-forward str nil t))) | |
867 | (setq pos (point)) | |
868 | (setq beg (match-beginning 0)) | |
869 | (goto-char beg) | |
870 | (setq err ()) | |
871 | (condition-case () | |
510cbc92 RS |
872 | (forward-list 1) |
873 | (error (setq err t))) | |
c60ee5e7 | 874 | (if (and reverse |
510cbc92 RS |
875 | (> (point) he-string-beg)) |
876 | (setq err t)) | |
8c6677ed | 877 | (if (not err) |
510cbc92 | 878 | (progn |
41b8e71c | 879 | (setq result (buffer-substring-no-properties beg (point))) |
510cbc92 RS |
880 | (if (he-string-member result he-tried-table t) |
881 | (setq result nil)))) ; if already in table, ignore | |
8c6677ed JB |
882 | (goto-char pos)) |
883 | result)) | |
884 | ||
885 | (defun he-list-beg () | |
886 | (save-excursion | |
887 | (condition-case () | |
510cbc92 | 888 | (backward-up-list 1) |
8c6677ed JB |
889 | (error ())) |
890 | (point))) | |
891 | ||
652304c9 RS |
892 | (defun try-expand-all-abbrevs (old) |
893 | "Try to expand word before point according to all abbrev tables. | |
894 | The argument OLD has to be nil the first call of this function, and t | |
895 | for subsequent calls (for further possible expansions of the same | |
896 | string). It returns t if a new expansion is found, nil otherwise." | |
897 | (if (not old) | |
898 | (progn | |
899 | (he-init-string (he-dabbrev-beg) (point)) | |
c60ee5e7 | 900 | (setq he-expand-list |
652304c9 RS |
901 | (and (not (equal he-search-string "")) |
902 | (mapcar (function (lambda (sym) | |
510cbc92 RS |
903 | (if (and (boundp sym) (vectorp (eval sym))) |
904 | (abbrev-expansion (downcase he-search-string) | |
905 | (eval sym))))) | |
c60ee5e7 | 906 | (append '(local-abbrev-table |
652304c9 RS |
907 | global-abbrev-table) |
908 | abbrev-table-name-list)))))) | |
909 | (while (and he-expand-list | |
910 | (or (not (car he-expand-list)) | |
510cbc92 | 911 | (he-string-member (car he-expand-list) he-tried-table t))) |
652304c9 RS |
912 | (setq he-expand-list (cdr he-expand-list))) |
913 | (if (null he-expand-list) | |
914 | (progn | |
510cbc92 | 915 | (if old (he-reset-string)) |
652304c9 RS |
916 | ()) |
917 | (progn | |
8c6677ed | 918 | (he-substitute-string (car he-expand-list) t) |
652304c9 RS |
919 | (setq he-expand-list (cdr he-expand-list)) |
920 | t))) | |
921 | ||
922 | (defun try-expand-dabbrev (old) | |
923 | "Try to expand word \"dynamically\", searching the current buffer. | |
924 | The argument OLD has to be nil the first call of this function, and t | |
925 | for subsequent calls (for further possible expansions of the same | |
926 | string). It returns t if a new expansion is found, nil otherwise." | |
927 | (let ((expansion ())) | |
928 | (if (not old) | |
929 | (progn | |
930 | (he-init-string (he-dabbrev-beg) (point)) | |
8c6677ed | 931 | (set-marker he-search-loc he-string-beg) |
652304c9 RS |
932 | (setq he-search-bw t))) |
933 | ||
934 | (if (not (equal he-search-string "")) | |
935 | (save-excursion | |
41b8e71c RS |
936 | (save-restriction |
937 | (if hippie-expand-no-restriction | |
938 | (widen)) | |
939 | ;; Try looking backward unless inhibited. | |
940 | (if he-search-bw | |
c60ee5e7 | 941 | (progn |
41b8e71c RS |
942 | (goto-char he-search-loc) |
943 | (setq expansion (he-dabbrev-search he-search-string t)) | |
944 | (set-marker he-search-loc (point)) | |
945 | (if (not expansion) | |
946 | (progn | |
947 | (set-marker he-search-loc he-string-end) | |
948 | (setq he-search-bw ()))))) | |
949 | ||
950 | (if (not expansion) ; Then look forward. | |
c60ee5e7 | 951 | (progn |
41b8e71c RS |
952 | (goto-char he-search-loc) |
953 | (setq expansion (he-dabbrev-search he-search-string nil)) | |
954 | (set-marker he-search-loc (point))))))) | |
c60ee5e7 | 955 | |
652304c9 RS |
956 | (if (not expansion) |
957 | (progn | |
510cbc92 | 958 | (if old (he-reset-string)) |
652304c9 RS |
959 | ()) |
960 | (progn | |
961 | (he-substitute-string expansion t) | |
652304c9 RS |
962 | t)))) |
963 | ||
964 | (defun try-expand-dabbrev-all-buffers (old) | |
965 | "Tries to expand word \"dynamically\", searching all other buffers. | |
966 | The argument OLD has to be nil the first call of this function, and t | |
967 | for subsequent calls (for further possible expansions of the same | |
968 | string). It returns t if a new expansion is found, nil otherwise." | |
969 | (let ((expansion ()) | |
510cbc92 RS |
970 | (buf (current-buffer)) |
971 | (orig-case-fold-search case-fold-search)) | |
652304c9 RS |
972 | (if (not old) |
973 | (progn | |
974 | (he-init-string (he-dabbrev-beg) (point)) | |
8c6677ed | 975 | (setq he-search-bufs (buffer-list)) |
510cbc92 | 976 | (setq he-searched-n-bufs 0) |
8c6677ed | 977 | (set-marker he-search-loc 1 (car he-search-bufs)))) |
652304c9 RS |
978 | |
979 | (if (not (equal he-search-string "")) | |
c60ee5e7 | 980 | (while (and he-search-bufs |
510cbc92 RS |
981 | (not expansion) |
982 | (or (not hippie-expand-max-buffers) | |
983 | (< he-searched-n-bufs hippie-expand-max-buffers))) | |
652304c9 RS |
984 | (set-buffer (car he-search-bufs)) |
985 | (if (and (not (eq (current-buffer) buf)) | |
41b8e71c RS |
986 | (if hippie-expand-only-buffers |
987 | (he-buffer-member hippie-expand-only-buffers) | |
988 | (not (he-buffer-member hippie-expand-ignore-buffers)))) | |
652304c9 | 989 | (save-excursion |
41b8e71c RS |
990 | (save-restriction |
991 | (if hippie-expand-no-restriction | |
992 | (widen)) | |
993 | (goto-char he-search-loc) | |
994 | (setq expansion | |
995 | (let ((case-fold-search orig-case-fold-search)) | |
996 | (he-dabbrev-search he-search-string nil))) | |
997 | (set-marker he-search-loc (point)) | |
998 | (if (not expansion) | |
999 | (progn | |
1000 | (setq he-search-bufs (cdr he-search-bufs)) | |
1001 | (setq he-searched-n-bufs (1+ he-searched-n-bufs)) | |
1002 | (set-marker he-search-loc 1 (car he-search-bufs)))))) | |
510cbc92 RS |
1003 | (setq he-search-bufs (cdr he-search-bufs)) |
1004 | (set-marker he-search-loc 1 (car he-search-bufs))))) | |
652304c9 RS |
1005 | |
1006 | (set-buffer buf) | |
1007 | (if (not expansion) | |
1008 | (progn | |
510cbc92 | 1009 | (if old (he-reset-string)) |
652304c9 RS |
1010 | ()) |
1011 | (progn | |
1012 | (he-substitute-string expansion t) | |
1013 | t)))) | |
1014 | ||
510cbc92 RS |
1015 | ;; Thanks go to Jeff Dairiki <dairiki@faraday.apl.washington.edu> who |
1016 | ;; suggested this one. | |
1017 | (defun try-expand-dabbrev-visible (old) | |
1018 | "Try to expand word \"dynamically\", searching visible window parts. | |
1019 | The argument OLD has to be nil the first call of this function, and t | |
1020 | for subsequent calls (for further possible expansions of the same | |
1021 | string). It returns t if a new expansion is found, nil otherwise." | |
1022 | (let ((expansion ()) | |
1023 | (buf (current-buffer)) | |
1024 | (flag (if (frame-visible-p (window-frame (selected-window))) | |
1025 | 'visible t))) | |
1026 | (if (not old) | |
1027 | (progn | |
1028 | (he-init-string (he-dabbrev-beg) (point)) | |
1029 | (setq he-search-window (selected-window)) | |
1030 | (set-marker he-search-loc | |
1031 | (window-start he-search-window) | |
1032 | (window-buffer he-search-window)))) | |
1033 | ||
1034 | (while (and (not (equal he-search-string "")) | |
1035 | (marker-position he-search-loc) | |
1036 | (not expansion)) | |
1037 | (save-excursion | |
1038 | (set-buffer (marker-buffer he-search-loc)) | |
1039 | (goto-char he-search-loc) | |
1040 | (setq expansion (he-dabbrev-search he-search-string () | |
1041 | (window-end he-search-window))) | |
1042 | (if (and expansion | |
1043 | (eq (marker-buffer he-string-beg) (current-buffer)) | |
1044 | (eq (marker-position he-string-beg) (match-beginning 0))) | |
1045 | (setq expansion (he-dabbrev-search he-search-string () | |
1046 | (window-end he-search-window)))) | |
1047 | (set-marker he-search-loc (point) (current-buffer))) | |
1048 | (if (not expansion) | |
c60ee5e7 | 1049 | (progn |
510cbc92 RS |
1050 | (setq he-search-window (next-window he-search-window nil flag)) |
1051 | (if (eq he-search-window (selected-window)) | |
1052 | (set-marker he-search-loc nil) | |
1053 | (set-marker he-search-loc (window-start he-search-window) | |
1054 | (window-buffer he-search-window)))))) | |
c60ee5e7 | 1055 | |
510cbc92 RS |
1056 | (set-buffer buf) |
1057 | (if (not expansion) | |
1058 | (progn | |
1059 | (if old (he-reset-string)) | |
1060 | ()) | |
1061 | (progn | |
1062 | (he-substitute-string expansion t) | |
1063 | t)))) | |
652304c9 | 1064 | |
510cbc92 RS |
1065 | (defun he-dabbrev-search (pattern &optional reverse limit) |
1066 | (let ((result ()) | |
41b8e71c RS |
1067 | (regpat (cond ((not hippie-expand-dabbrev-as-symbol) |
1068 | (concat "\\<" (regexp-quote pattern) "\\sw+")) | |
1069 | ((eq (char-syntax (aref pattern 0)) ?_) | |
1070 | (concat (regexp-quote pattern) "\\(\\sw\\|\\s_\\)+")) | |
1071 | (t | |
1072 | (concat "\\<" (regexp-quote pattern) | |
1073 | "\\(\\sw\\|\\s_\\)+"))))) | |
c60ee5e7 | 1074 | (while (and (not result) |
652304c9 | 1075 | (if reverse |
510cbc92 RS |
1076 | (re-search-backward regpat limit t) |
1077 | (re-search-forward regpat limit t))) | |
41b8e71c RS |
1078 | (setq result (buffer-substring-no-properties (match-beginning 0) |
1079 | (match-end 0))) | |
1080 | (if (or (and hippie-expand-dabbrev-as-symbol | |
1081 | (> (match-beginning 0) (point-min)) | |
510cbc92 RS |
1082 | (memq (char-syntax (char-after (1- (match-beginning 0)))) |
1083 | '(?_ ?w))) | |
1084 | (he-string-member result he-tried-table t)) | |
1085 | (setq result nil))) ; ignore if bad prefix or already in table | |
652304c9 RS |
1086 | result)) |
1087 | ||
1088 | (defun he-dabbrev-beg () | |
510cbc92 RS |
1089 | (let ((op (point))) |
1090 | (save-excursion | |
41b8e71c | 1091 | (if hippie-expand-dabbrev-skip-space |
510cbc92 | 1092 | (skip-syntax-backward ". ")) |
41b8e71c RS |
1093 | (if (= (skip-syntax-backward (if hippie-expand-dabbrev-as-symbol |
1094 | "w_" "w")) | |
1095 | 0) | |
510cbc92 RS |
1096 | op |
1097 | (point))))) | |
1098 | ||
1099 | (defun try-expand-dabbrev-from-kill (old) | |
1100 | "Try to expand word \"dynamically\", searching the kill ring. | |
1101 | The argument OLD has to be nil the first call of this function, and t | |
1102 | for subsequent calls (for further possible completions of the same | |
1103 | string). It returns t if a new completion is found, nil otherwise." | |
1104 | (let ((expansion ())) | |
1105 | (if (not old) | |
c60ee5e7 | 1106 | (progn |
510cbc92 RS |
1107 | (he-init-string (he-dabbrev-beg) (point)) |
1108 | (setq he-expand-list | |
1109 | (if (not (equal he-search-string "")) | |
1110 | kill-ring)) | |
1111 | (setq he-search-loc2 0))) | |
1112 | (if (not (equal he-search-string "")) | |
1113 | (setq expansion (he-dabbrev-kill-search he-search-string))) | |
1114 | (if (not expansion) | |
1115 | (progn | |
1116 | (if old (he-reset-string)) | |
1117 | ()) | |
1118 | (progn | |
1119 | (he-substitute-string expansion t) | |
1120 | t)))) | |
1121 | ||
1122 | (defun he-dabbrev-kill-search (pattern) | |
1123 | (let ((result ()) | |
41b8e71c RS |
1124 | (regpat (cond ((not hippie-expand-dabbrev-as-symbol) |
1125 | (concat "\\<" (regexp-quote pattern) "\\sw+")) | |
1126 | ((eq (char-syntax (aref pattern 0)) ?_) | |
1127 | (concat (regexp-quote pattern) "\\(\\sw\\|\\s_\\)+")) | |
1128 | (t | |
1129 | (concat "\\<" (regexp-quote pattern) | |
1130 | "\\(\\sw\\|\\s_\\)+")))) | |
510cbc92 | 1131 | (killstr (car he-expand-list))) |
c60ee5e7 | 1132 | (while (and (not result) |
510cbc92 RS |
1133 | he-expand-list) |
1134 | (while (and (not result) | |
1135 | (string-match regpat killstr he-search-loc2)) | |
1136 | (setq result (substring killstr (match-beginning 0) (match-end 0))) | |
41b8e71c | 1137 | (set-text-properties 0 (length result) () result) |
510cbc92 | 1138 | (setq he-search-loc2 (1+ (match-beginning 0))) |
41b8e71c RS |
1139 | (if (or (and hippie-expand-dabbrev-as-symbol |
1140 | (> (match-beginning 0) 0) | |
510cbc92 RS |
1141 | (memq (char-syntax (aref killstr (1- (match-beginning 0)))) |
1142 | '(?_ ?w))) | |
1143 | (he-string-member result he-tried-table t)) | |
1144 | (setq result nil))) ; ignore if bad prefix or already in table | |
c60ee5e7 | 1145 | (if (and (not result) |
510cbc92 RS |
1146 | he-expand-list) |
1147 | (progn | |
c60ee5e7 | 1148 | (setq he-expand-list (cdr he-expand-list)) |
510cbc92 RS |
1149 | (setq killstr (car he-expand-list)) |
1150 | (setq he-search-loc2 0)))) | |
1151 | result)) | |
1152 | ||
1153 | (defun try-expand-whole-kill (old) | |
1154 | "Try to complete text with something from the kill ring. | |
1155 | The argument OLD has to be nil the first call of this function, and t | |
1156 | for subsequent calls (for further possible completions of the same | |
1157 | string). It returns t if a new completion is found, nil otherwise." | |
1158 | (let ((expansion ())) | |
1159 | (if (not old) | |
c60ee5e7 | 1160 | (progn |
510cbc92 RS |
1161 | (he-init-string (he-kill-beg) (point)) |
1162 | (if (not (he-string-member he-search-string he-tried-table)) | |
1163 | (setq he-tried-table (cons he-search-string he-tried-table))) | |
c60ee5e7 | 1164 | (setq he-expand-list |
510cbc92 RS |
1165 | (if (not (equal he-search-string "")) |
1166 | kill-ring)) | |
1167 | (setq he-search-loc2 ()))) | |
1168 | (if (not (equal he-search-string "")) | |
1169 | (setq expansion (he-whole-kill-search he-search-string))) | |
1170 | (if (not expansion) | |
1171 | (progn | |
1172 | (if old (he-reset-string)) | |
1173 | ()) | |
1174 | (progn | |
1175 | (he-substitute-string expansion) | |
1176 | t)))) | |
1177 | ||
1178 | (defun he-whole-kill-search (str) | |
1179 | (let ((case-fold-search ()) | |
1180 | (result ()) | |
1181 | (str (regexp-quote str)) | |
1182 | (killstr (car he-expand-list)) | |
1183 | (pos -1)) | |
1184 | (while (and (not result) | |
1185 | he-expand-list) | |
1186 | (if (not he-search-loc2) | |
1187 | (while (setq pos (string-match str killstr (1+ pos))) | |
1188 | (setq he-search-loc2 (cons pos he-search-loc2)))) | |
1189 | (while (and (not result) | |
1190 | he-search-loc2) | |
1191 | (setq pos (car he-search-loc2)) | |
1192 | (setq he-search-loc2 (cdr he-search-loc2)) | |
1193 | (save-excursion | |
1194 | (goto-char he-string-beg) | |
1195 | (if (and (>= (- (point) pos) (point-min)) ; avoid some string GC | |
1196 | (eq (char-after (- (point) pos)) (aref killstr 0)) | |
1197 | (search-backward (substring killstr 0 pos) | |
1198 | (- (point) pos) t)) | |
41b8e71c RS |
1199 | (progn |
1200 | (setq result (substring killstr pos)) | |
1201 | (set-text-properties 0 (length result) () result)))) | |
510cbc92 RS |
1202 | (if (and result |
1203 | (he-string-member result he-tried-table)) | |
1204 | (setq result nil))) ; ignore if already in table | |
1205 | (if (and (not result) | |
1206 | he-expand-list) | |
1207 | (progn | |
c60ee5e7 | 1208 | (setq he-expand-list (cdr he-expand-list)) |
510cbc92 RS |
1209 | (setq killstr (car he-expand-list)) |
1210 | (setq pos -1)))) | |
1211 | result)) | |
1212 | ||
1213 | (defun he-kill-beg () | |
1214 | (let ((op (point))) | |
1215 | (save-excursion | |
1216 | (skip-syntax-backward "^w_") | |
1217 | (if (= (skip-syntax-backward "w_") 0) | |
1218 | op | |
1219 | (point))))) | |
1220 | ||
8c6677ed JB |
1221 | |
1222 | (provide 'hippie-exp) | |
652304c9 | 1223 | |
cbee283d | 1224 | ;; arch-tag: 5e6e00bf-b061-4a7a-9b46-de0ae105ab99 |
8c6677ed | 1225 | ;;; hippie-exp.el ends here |