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annotate runtime/doc/autocmd.txt @ 11092:24caa60f5e94
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author | Christian Brabandt <cb@256bit.org> |
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date | Wed, 08 Mar 2017 23:00:06 +0100 |
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10617 | 1 *autocmd.txt* For Vim version 8.0. Last change: 2017 Jan 14 |
7 | 2 |
3 | |
4 VIM REFERENCE MANUAL by Bram Moolenaar | |
5 | |
6 | |
7 Automatic commands *autocommand* | |
8 | |
9 For a basic explanation, see section |40.3| in the user manual. | |
10 | |
11 1. Introduction |autocmd-intro| | |
12 2. Defining autocommands |autocmd-define| | |
13 3. Removing autocommands |autocmd-remove| | |
14 4. Listing autocommands |autocmd-list| | |
15 5. Events |autocmd-events| | |
16 6. Patterns |autocmd-patterns| | |
40 | 17 7. Buffer-local autocommands |autocmd-buflocal| |
18 8. Groups |autocmd-groups| | |
19 9. Executing autocommands |autocmd-execute| | |
20 10. Using autocommands |autocmd-use| | |
590 | 21 11. Disabling autocommands |autocmd-disable| |
7 | 22 |
23 {Vi does not have any of these commands} | |
24 {only when the |+autocmd| feature has not been disabled at compile time} | |
25 | |
26 ============================================================================== | |
27 1. Introduction *autocmd-intro* | |
28 | |
22 | 29 You can specify commands to be executed automatically when reading or writing |
30 a file, when entering or leaving a buffer or window, and when exiting Vim. | |
31 For example, you can create an autocommand to set the 'cindent' option for | |
32 files matching *.c. You can also use autocommands to implement advanced | |
7 | 33 features, such as editing compressed files (see |gzip-example|). The usual |
34 place to put autocommands is in your .vimrc or .exrc file. | |
35 | |
10617 | 36 *E203* *E204* *E143* *E855* *E937* |
7 | 37 WARNING: Using autocommands is very powerful, and may lead to unexpected side |
38 effects. Be careful not to destroy your text. | |
39 - It's a good idea to do some testing on an expendable copy of a file first. | |
40 For example: If you use autocommands to decompress a file when starting to | |
41 edit it, make sure that the autocommands for compressing when writing work | |
42 correctly. | |
43 - Be prepared for an error halfway through (e.g., disk full). Vim will mostly | |
44 be able to undo the changes to the buffer, but you may have to clean up the | |
45 changes to other files by hand (e.g., compress a file that has been | |
46 decompressed). | |
47 - If the BufRead* events allow you to edit a compressed file, the FileRead* | |
48 events should do the same (this makes recovery possible in some rare cases). | |
49 It's a good idea to use the same autocommands for the File* and Buf* events | |
50 when possible. | |
51 | |
52 ============================================================================== | |
53 2. Defining autocommands *autocmd-define* | |
54 | |
55 *:au* *:autocmd* | |
56 :au[tocmd] [group] {event} {pat} [nested] {cmd} | |
57 Add {cmd} to the list of commands that Vim will | |
58 execute automatically on {event} for a file matching | |
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59 {pat} |autocmd-patterns|. |
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60 Vim always adds the {cmd} after existing autocommands, |
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61 so that the autocommands execute in the order in which |
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62 they were given. See |autocmd-nested| for [nested]. |
7 | 63 |
40 | 64 The special pattern <buffer> or <buffer=N> defines a buffer-local autocommand. |
65 See |autocmd-buflocal|. | |
66 | |
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67 Note: The ":autocmd" command can only be followed by another command when the |
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68 '|' appears before {cmd}. This works: > |
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69 :augroup mine | au! BufRead | augroup END |
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70 But this sees "augroup" as part of the defined command: > |
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71 :augroup mine | au BufRead * set tw=70 | augroup END |
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72 |
7 | 73 Note that special characters (e.g., "%", "<cword>") in the ":autocmd" |
74 arguments are not expanded when the autocommand is defined. These will be | |
75 expanded when the Event is recognized, and the {cmd} is executed. The only | |
76 exception is that "<sfile>" is expanded when the autocmd is defined. Example: | |
77 > | |
78 :au BufNewFile,BufRead *.html so <sfile>:h/html.vim | |
79 | |
80 Here Vim expands <sfile> to the name of the file containing this line. | |
81 | |
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82 `:autocmd` adds to the list of autocommands regardless of whether they are |
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83 already present. When your .vimrc file is sourced twice, the autocommands |
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84 will appear twice. To avoid this, define your autocommands in a group, so |
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85 that you can easily clear them: > |
7 | 86 |
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87 augroup vimrc |
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88 autocmd! " Remove all vimrc autocommands |
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89 au BufNewFile,BufRead *.html so <sfile>:h/html.vim |
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90 augroup END |
7 | 91 |
92 If you don't want to remove all autocommands, you can instead use a variable | |
93 to ensure that Vim includes the autocommands only once: > | |
94 | |
95 :if !exists("autocommands_loaded") | |
96 : let autocommands_loaded = 1 | |
97 : au ... | |
98 :endif | |
99 | |
100 When the [group] argument is not given, Vim uses the current group (as defined | |
101 with ":augroup"); otherwise, Vim uses the group defined with [group]. Note | |
102 that [group] must have been defined before. You cannot define a new group | |
103 with ":au group ..."; use ":augroup" for that. | |
104 | |
105 While testing autocommands, you might find the 'verbose' option to be useful: > | |
106 :set verbose=9 | |
107 This setting makes Vim echo the autocommands as it executes them. | |
108 | |
109 When defining an autocommand in a script, it will be able to call functions | |
110 local to the script and use mappings local to the script. When the event is | |
111 triggered and the command executed, it will run in the context of the script | |
112 it was defined in. This matters if |<SID>| is used in a command. | |
113 | |
1621 | 114 When executing the commands, the message from one command overwrites a |
7 | 115 previous message. This is different from when executing the commands |
116 manually. Mostly the screen will not scroll up, thus there is no hit-enter | |
117 prompt. When one command outputs two messages this can happen anyway. | |
118 | |
119 ============================================================================== | |
120 3. Removing autocommands *autocmd-remove* | |
121 | |
122 :au[tocmd]! [group] {event} {pat} [nested] {cmd} | |
123 Remove all autocommands associated with {event} and | |
124 {pat}, and add the command {cmd}. See | |
125 |autocmd-nested| for [nested]. | |
126 | |
127 :au[tocmd]! [group] {event} {pat} | |
128 Remove all autocommands associated with {event} and | |
129 {pat}. | |
130 | |
131 :au[tocmd]! [group] * {pat} | |
132 Remove all autocommands associated with {pat} for all | |
133 events. | |
134 | |
135 :au[tocmd]! [group] {event} | |
136 Remove ALL autocommands for {event}. | |
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137 Warning: You should not do this without a group for |
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138 |BufRead| and other common events, it can break |
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139 plugins, syntax highlighting, etc. |
7 | 140 |
141 :au[tocmd]! [group] Remove ALL autocommands. | |
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142 Warning: You should normally not do this without a |
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143 group, it breaks plugins, syntax highlighting, etc. |
7 | 144 |
145 When the [group] argument is not given, Vim uses the current group (as defined | |
146 with ":augroup"); otherwise, Vim uses the group defined with [group]. | |
147 | |
148 ============================================================================== | |
149 4. Listing autocommands *autocmd-list* | |
150 | |
151 :au[tocmd] [group] {event} {pat} | |
152 Show the autocommands associated with {event} and | |
153 {pat}. | |
154 | |
155 :au[tocmd] [group] * {pat} | |
156 Show the autocommands associated with {pat} for all | |
157 events. | |
158 | |
159 :au[tocmd] [group] {event} | |
160 Show all autocommands for {event}. | |
161 | |
162 :au[tocmd] [group] Show all autocommands. | |
163 | |
164 If you provide the [group] argument, Vim lists only the autocommands for | |
165 [group]; otherwise, Vim lists the autocommands for ALL groups. Note that this | |
166 argument behavior differs from that for defining and removing autocommands. | |
167 | |
40 | 168 In order to list buffer-local autocommands, use a pattern in the form <buffer> |
169 or <buffer=N>. See |autocmd-buflocal|. | |
170 | |
500 | 171 *:autocmd-verbose* |
172 When 'verbose' is non-zero, listing an autocommand will also display where it | |
173 was last defined. Example: > | |
174 | |
175 :verbose autocmd BufEnter | |
176 FileExplorer BufEnter | |
856 | 177 * call s:LocalBrowse(expand("<amatch>")) |
500 | 178 Last set from /usr/share/vim/vim-7.0/plugin/NetrwPlugin.vim |
179 < | |
180 See |:verbose-cmd| for more information. | |
181 | |
7 | 182 ============================================================================== |
183 5. Events *autocmd-events* *E215* *E216* | |
184 | |
579 | 185 You can specify a comma-separated list of event names. No white space can be |
186 used in this list. The command applies to all the events in the list. | |
187 | |
188 For READING FILES there are four kinds of events possible: | |
189 BufNewFile starting to edit a non-existent file | |
190 BufReadPre BufReadPost starting to edit an existing file | |
191 FilterReadPre FilterReadPost read the temp file with filter output | |
192 FileReadPre FileReadPost any other file read | |
193 Vim uses only one of these four kinds when reading a file. The "Pre" and | |
194 "Post" events are both triggered, before and after reading the file. | |
195 | |
196 Note that the autocommands for the *ReadPre events and all the Filter events | |
197 are not allowed to change the current buffer (you will get an error message if | |
198 this happens). This is to prevent the file to be read into the wrong buffer. | |
199 | |
200 Note that the 'modified' flag is reset AFTER executing the BufReadPost | |
201 and BufNewFile autocommands. But when the 'modified' option was set by the | |
202 autocommands, this doesn't happen. | |
203 | |
204 You can use the 'eventignore' option to ignore a number of events or all | |
205 events. | |
7 | 206 *autocommand-events* *{event}* |
207 Vim recognizes the following events. Vim ignores the case of event names | |
208 (e.g., you can use "BUFread" or "bufread" instead of "BufRead"). | |
209 | |
579 | 210 First an overview by function with a short explanation. Then the list |
843 | 211 alphabetically with full explanations |autocmd-events-abc|. |
579 | 212 |
213 Name triggered by ~ | |
214 | |
215 Reading | |
216 |BufNewFile| starting to edit a file that doesn't exist | |
217 |BufReadPre| starting to edit a new buffer, before reading the file | |
218 |BufRead| starting to edit a new buffer, after reading the file | |
219 |BufReadPost| starting to edit a new buffer, after reading the file | |
220 |BufReadCmd| before starting to edit a new buffer |Cmd-event| | |
221 | |
222 |FileReadPre| before reading a file with a ":read" command | |
223 |FileReadPost| after reading a file with a ":read" command | |
843 | 224 |FileReadCmd| before reading a file with a ":read" command |Cmd-event| |
579 | 225 |
226 |FilterReadPre| before reading a file from a filter command | |
227 |FilterReadPost| after reading a file from a filter command | |
228 | |
229 |StdinReadPre| before reading from stdin into the buffer | |
230 |StdinReadPost| After reading from the stdin into the buffer | |
231 | |
232 Writing | |
233 |BufWrite| starting to write the whole buffer to a file | |
234 |BufWritePre| starting to write the whole buffer to a file | |
235 |BufWritePost| after writing the whole buffer to a file | |
236 |BufWriteCmd| before writing the whole buffer to a file |Cmd-event| | |
237 | |
238 |FileWritePre| starting to write part of a buffer to a file | |
239 |FileWritePost| after writing part of a buffer to a file | |
240 |FileWriteCmd| before writing part of a buffer to a file |Cmd-event| | |
241 | |
242 |FileAppendPre| starting to append to a file | |
243 |FileAppendPost| after appending to a file | |
244 |FileAppendCmd| before appending to a file |Cmd-event| | |
245 | |
246 |FilterWritePre| starting to write a file for a filter command or diff | |
247 |FilterWritePost| after writing a file for a filter command or diff | |
248 | |
249 Buffers | |
250 |BufAdd| just after adding a buffer to the buffer list | |
251 |BufCreate| just after adding a buffer to the buffer list | |
252 |BufDelete| before deleting a buffer from the buffer list | |
253 |BufWipeout| before completely deleting a buffer | |
254 | |
255 |BufFilePre| before changing the name of the current buffer | |
256 |BufFilePost| after changing the name of the current buffer | |
257 | |
258 |BufEnter| after entering a buffer | |
259 |BufLeave| before leaving to another buffer | |
260 |BufWinEnter| after a buffer is displayed in a window | |
261 |BufWinLeave| before a buffer is removed from a window | |
262 | |
263 |BufUnload| before unloading a buffer | |
264 |BufHidden| just after a buffer has become hidden | |
265 |BufNew| just after creating a new buffer | |
266 | |
267 |SwapExists| detected an existing swap file | |
268 | |
269 Options | |
270 |FileType| when the 'filetype' option has been set | |
271 |Syntax| when the 'syntax' option has been set | |
272 |EncodingChanged| after the 'encoding' option has been changed | |
273 |TermChanged| after the value of 'term' has changed | |
6935 | 274 |OptionSet| after setting any option |
579 | 275 |
276 Startup and exit | |
277 |VimEnter| after doing all the startup stuff | |
278 |GUIEnter| after starting the GUI successfully | |
3830 | 279 |GUIFailed| after starting the GUI failed |
1154 | 280 |TermResponse| after the terminal response to |t_RV| is received |
579 | 281 |
4119 | 282 |QuitPre| when using `:quit`, before deciding whether to quit |
579 | 283 |VimLeavePre| before exiting Vim, before writing the viminfo file |
284 |VimLeave| before exiting Vim, after writing the viminfo file | |
285 | |
286 Various | |
287 |FileChangedShell| Vim notices that a file changed since editing started | |
766 | 288 |FileChangedShellPost| After handling a file changed since editing started |
579 | 289 |FileChangedRO| before making the first change to a read-only file |
290 | |
724 | 291 |ShellCmdPost| after executing a shell command |
292 |ShellFilterPost| after filtering with a shell command | |
293 | |
6154 | 294 |CmdUndefined| a user command is used but it isn't defined |
579 | 295 |FuncUndefined| a user function is used but it isn't defined |
650 | 296 |SpellFileMissing| a spell file is used but it can't be found |
716 | 297 |SourcePre| before sourcing a Vim script |
1061 | 298 |SourceCmd| before sourcing a Vim script |Cmd-event| |
579 | 299 |
766 | 300 |VimResized| after the Vim window size changed |
579 | 301 |FocusGained| Vim got input focus |
302 |FocusLost| Vim lost input focus | |
303 |CursorHold| the user doesn't press a key for a while | |
661 | 304 |CursorHoldI| the user doesn't press a key for a while in Insert mode |
305 |CursorMoved| the cursor was moved in Normal mode | |
306 |CursorMovedI| the cursor was moved in Insert mode | |
579 | 307 |
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308 |WinNew| after creating a new window |
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309 |TabNew| after creating a new tab page |
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310 |TabClosed| after closing a tab page |
579 | 311 |WinEnter| after entering another window |
312 |WinLeave| before leaving a window | |
677 | 313 |TabEnter| after entering another tab page |
314 |TabLeave| before leaving a tab page | |
579 | 315 |CmdwinEnter| after entering the command-line window |
316 |CmdwinLeave| before leaving the command-line window | |
317 | |
318 |InsertEnter| starting Insert mode | |
319 |InsertChange| when typing <Insert> while in Insert or Replace mode | |
320 |InsertLeave| when leaving Insert mode | |
2845 | 321 |InsertCharPre| when a character was typed in Insert mode, before |
322 inserting it | |
579 | 323 |
5555 | 324 |TextChanged| after a change was made to the text in Normal mode |
325 |TextChangedI| after a change was made to the text in Insert mode | |
326 | |
579 | 327 |ColorScheme| after loading a color scheme |
328 | |
329 |RemoteReply| a reply from a server Vim was received | |
330 | |
331 |QuickFixCmdPre| before a quickfix command is run | |
332 |QuickFixCmdPost| after a quickfix command is run | |
333 | |
334 |SessionLoadPost| after loading a session file | |
335 | |
336 |MenuPopup| just before showing the popup menu | |
3830 | 337 |CompleteDone| after Insert mode completion is done |
579 | 338 |
339 |User| to be used in combination with ":doautocmd" | |
340 | |
341 | |
342 The alphabetical list of autocommand events: *autocmd-events-abc* | |
343 | |
344 *BufCreate* *BufAdd* | |
345 BufAdd or BufCreate Just after creating a new buffer which is | |
346 added to the buffer list, or adding a buffer | |
347 to the buffer list. | |
348 Also used just after a buffer in the buffer | |
349 list has been renamed. | |
350 The BufCreate event is for historic reasons. | |
351 NOTE: When this autocommand is executed, the | |
352 current buffer "%" may be different from the | |
353 buffer being created "<afile>". | |
354 *BufDelete* | |
355 BufDelete Before deleting a buffer from the buffer list. | |
356 The BufUnload may be called first (if the | |
357 buffer was loaded). | |
358 Also used just before a buffer in the buffer | |
359 list is renamed. | |
360 NOTE: When this autocommand is executed, the | |
361 current buffer "%" may be different from the | |
1621 | 362 buffer being deleted "<afile>" and "<abuf>". |
1919 | 363 Don't change to another buffer, it will cause |
364 problems. | |
579 | 365 *BufEnter* |
366 BufEnter After entering a buffer. Useful for setting | |
367 options for a file type. Also executed when | |
368 starting to edit a buffer, after the | |
369 BufReadPost autocommands. | |
370 *BufFilePost* | |
371 BufFilePost After changing the name of the current buffer | |
372 with the ":file" or ":saveas" command. | |
625 | 373 *BufFilePre* |
579 | 374 BufFilePre Before changing the name of the current buffer |
375 with the ":file" or ":saveas" command. | |
376 *BufHidden* | |
377 BufHidden Just after a buffer has become hidden. That | |
378 is, when there are no longer windows that show | |
379 the buffer, but the buffer is not unloaded or | |
380 deleted. Not used for ":qa" or ":q" when | |
381 exiting Vim. | |
382 NOTE: When this autocommand is executed, the | |
383 current buffer "%" may be different from the | |
384 buffer being unloaded "<afile>". | |
385 *BufLeave* | |
386 BufLeave Before leaving to another buffer. Also when | |
387 leaving or closing the current window and the | |
388 new current window is not for the same buffer. | |
389 Not used for ":qa" or ":q" when exiting Vim. | |
390 *BufNew* | |
391 BufNew Just after creating a new buffer. Also used | |
392 just after a buffer has been renamed. When | |
393 the buffer is added to the buffer list BufAdd | |
394 will be triggered too. | |
395 NOTE: When this autocommand is executed, the | |
396 current buffer "%" may be different from the | |
397 buffer being created "<afile>". | |
7 | 398 *BufNewFile* |
399 BufNewFile When starting to edit a file that doesn't | |
400 exist. Can be used to read in a skeleton | |
401 file. | |
402 *BufRead* *BufReadPost* | |
403 BufRead or BufReadPost When starting to edit a new buffer, after | |
404 reading the file into the buffer, before | |
405 executing the modelines. See |BufWinEnter| | |
406 for when you need to do something after | |
407 processing the modelines. | |
408 This does NOT work for ":r file". Not used | |
409 when the file doesn't exist. Also used after | |
410 successfully recovering a file. | |
3682 | 411 Also triggered for the filetypedetect group |
412 when executing ":filetype detect" and when | |
413 writing an unnamed buffer in a way that the | |
414 buffer gets a name. | |
625 | 415 *BufReadCmd* |
7 | 416 BufReadCmd Before starting to edit a new buffer. Should |
417 read the file into the buffer. |Cmd-event| | |
625 | 418 *BufReadPre* *E200* *E201* |
579 | 419 BufReadPre When starting to edit a new buffer, before |
420 reading the file into the buffer. Not used | |
421 if the file doesn't exist. | |
422 *BufUnload* | |
423 BufUnload Before unloading a buffer. This is when the | |
424 text in the buffer is going to be freed. This | |
425 may be after a BufWritePost and before a | |
426 BufDelete. Also used for all buffers that are | |
427 loaded when Vim is going to exit. | |
428 NOTE: When this autocommand is executed, the | |
429 current buffer "%" may be different from the | |
430 buffer being unloaded "<afile>". | |
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431 Don't change to another buffer or window, it |
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432 will cause problems! |
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433 When exiting and v:dying is 2 or more this |
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434 event is not triggered. |
579 | 435 *BufWinEnter* |
436 BufWinEnter After a buffer is displayed in a window. This | |
437 can be when the buffer is loaded (after | |
1621 | 438 processing the modelines) or when a hidden |
579 | 439 buffer is displayed in a window (and is no |
1621 | 440 longer hidden). |
441 Does not happen for |:split| without | |
442 arguments, since you keep editing the same | |
443 buffer, or ":split" with a file that's already | |
1668 | 444 open in a window, because it re-uses an |
445 existing buffer. But it does happen for a | |
446 ":split" with the name of the current buffer, | |
447 since it reloads that buffer. | |
579 | 448 *BufWinLeave* |
449 BufWinLeave Before a buffer is removed from a window. | |
450 Not when it's still visible in another window. | |
451 Also triggered when exiting. It's triggered | |
452 before BufUnload or BufHidden. | |
453 NOTE: When this autocommand is executed, the | |
454 current buffer "%" may be different from the | |
455 buffer being unloaded "<afile>". | |
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456 When exiting and v:dying is 2 or more this |
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457 event is not triggered. |
579 | 458 *BufWipeout* |
459 BufWipeout Before completely deleting a buffer. The | |
460 BufUnload and BufDelete events may be called | |
461 first (if the buffer was loaded and was in the | |
462 buffer list). Also used just before a buffer | |
463 is renamed (also when it's not in the buffer | |
464 list). | |
465 NOTE: When this autocommand is executed, the | |
466 current buffer "%" may be different from the | |
467 buffer being deleted "<afile>". | |
1919 | 468 Don't change to another buffer, it will cause |
469 problems. | |
7 | 470 *BufWrite* *BufWritePre* |
471 BufWrite or BufWritePre Before writing the whole buffer to a file. | |
472 *BufWriteCmd* | |
473 BufWriteCmd Before writing the whole buffer to a file. | |
474 Should do the writing of the file and reset | |
39 | 475 'modified' if successful, unless '+' is in |
476 'cpo' and writing to another file |cpo-+|. | |
477 The buffer contents should not be changed. | |
3082 | 478 When the command resets 'modified' the undo |
479 information is adjusted to mark older undo | |
480 states as 'modified', like |:write| does. | |
39 | 481 |Cmd-event| |
579 | 482 *BufWritePost* |
483 BufWritePost After writing the whole buffer to a file | |
484 (should undo the commands for BufWritePre). | |
6154 | 485 *CmdUndefined* |
486 CmdUndefined When a user command is used but it isn't | |
487 defined. Useful for defining a command only | |
488 when it's used. The pattern is matched | |
489 against the command name. Both <amatch> and | |
490 <afile> are set to the name of the command. | |
491 NOTE: Autocompletion won't work until the | |
492 command is defined. An alternative is to | |
493 always define the user command and have it | |
494 invoke an autoloaded function. See |autoload|. | |
579 | 495 *CmdwinEnter* |
496 CmdwinEnter After entering the command-line window. | |
497 Useful for setting options specifically for | |
498 this special type of window. This is | |
499 triggered _instead_ of BufEnter and WinEnter. | |
500 <afile> is set to a single character, | |
501 indicating the type of command-line. | |
502 |cmdwin-char| | |
503 *CmdwinLeave* | |
504 CmdwinLeave Before leaving the command-line window. | |
505 Useful to clean up any global setting done | |
506 with CmdwinEnter. This is triggered _instead_ | |
507 of BufLeave and WinLeave. | |
508 <afile> is set to a single character, | |
509 indicating the type of command-line. | |
510 |cmdwin-char| | |
511 *ColorScheme* | |
512 ColorScheme After loading a color scheme. |:colorscheme| | |
5521 | 513 The pattern is matched against the |
514 colorscheme name. <afile> can be used for the | |
515 name of the actual file where this option was | |
516 set, and <amatch> for the new colorscheme | |
517 name. | |
518 | |
661 | 519 |
3682 | 520 *CompleteDone* |
521 CompleteDone After Insert mode completion is done. Either | |
522 when something was completed or abandoning | |
523 completion. |ins-completion| | |
6909 | 524 The |v:completed_item| variable contains |
525 information about the completed item. | |
3682 | 526 |
579 | 527 *CursorHold* |
528 CursorHold When the user doesn't press a key for the time | |
529 specified with 'updatetime'. Not re-triggered | |
530 until the user has pressed a key (i.e. doesn't | |
531 fire every 'updatetime' ms if you leave Vim to | |
532 make some coffee. :) See |CursorHold-example| | |
533 for previewing tags. | |
534 This event is only triggered in Normal mode. | |
1154 | 535 It is not triggered when waiting for a command |
536 argument to be typed, or a movement after an | |
537 operator. | |
610 | 538 While recording the CursorHold event is not |
539 triggered. |q| | |
6259 | 540 *<CursorHold>* |
541 Internally the autocommand is triggered by the | |
542 <CursorHold> key. In an expression mapping | |
543 |getchar()| may see this character. | |
544 | |
579 | 545 Note: Interactive commands cannot be used for |
546 this event. There is no hit-enter prompt, | |
547 the screen is updated directly (when needed). | |
548 Note: In the future there will probably be | |
549 another option to set the time. | |
550 Hint: to force an update of the status lines | |
551 use: > | |
552 :let &ro = &ro | |
553 < {only on Amiga, Unix, Win32, MSDOS and all GUI | |
554 versions} | |
661 | 555 *CursorHoldI* |
556 CursorHoldI Just like CursorHold, but in Insert mode. | |
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557 Not triggered when waiting for another key, |
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558 e.g. after CTRL-V, and not when in CTRL-X mode |
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559 |insert_expand|. |
661 | 560 |
561 *CursorMoved* | |
4911 | 562 CursorMoved After the cursor was moved in Normal or Visual |
563 mode. Also when the text of the cursor line | |
564 has been changed, e.g., with "x", "rx" or "p". | |
661 | 565 Not triggered when there is typeahead or when |
566 an operator is pending. | |
667 | 567 For an example see |match-parens|. |
4264 | 568 Careful: This is triggered very often, don't |
569 do anything that the user does not expect or | |
570 that is slow. | |
661 | 571 *CursorMovedI* |
572 CursorMovedI After the cursor was moved in Insert mode. | |
3082 | 573 Not triggered when the popup menu is visible. |
661 | 574 Otherwise the same as CursorMoved. |
579 | 575 *EncodingChanged* |
576 EncodingChanged Fires off after the 'encoding' option has been | |
577 changed. Useful to set up fonts, for example. | |
7 | 578 *FileAppendCmd* |
579 FileAppendCmd Before appending to a file. Should do the | |
26 | 580 appending to the file. Use the '[ and '] |
581 marks for the range of lines.|Cmd-event| | |
579 | 582 *FileAppendPost* |
583 FileAppendPost After appending to a file. | |
584 *FileAppendPre* | |
585 FileAppendPre Before appending to a file. Use the '[ and '] | |
586 marks for the range of lines. | |
587 *FileChangedRO* | |
588 FileChangedRO Before making the first change to a read-only | |
589 file. Can be used to check-out the file from | |
590 a source control system. Not triggered when | |
591 the change was caused by an autocommand. | |
592 This event is triggered when making the first | |
593 change in a buffer or the first change after | |
823 | 594 'readonly' was set, just before the change is |
595 applied to the text. | |
579 | 596 WARNING: If the autocommand moves the cursor |
597 the effect of the change is undefined. | |
819 | 598 *E788* |
599 It is not allowed to change to another buffer | |
600 here. You can reload the buffer but not edit | |
601 another one. | |
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602 *E881* |
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603 If the number of lines changes saving for undo |
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604 may fail and the change will be aborted. |
7 | 605 *FileChangedShell* |
606 FileChangedShell When Vim notices that the modification time of | |
607 a file has changed since editing started. | |
608 Also when the file attributes of the file | |
5908 | 609 change or when the size of the file changes. |
610 |timestamp| | |
7 | 611 Mostly triggered after executing a shell |
612 command, but also with a |:checktime| command | |
179 | 613 or when Gvim regains input focus. |
7 | 614 This autocommand is triggered for each changed |
615 file. It is not used when 'autoread' is set | |
616 and the buffer was not changed. If a | |
617 FileChangedShell autocommand is present the | |
618 warning message and prompt is not given. | |
179 | 619 The |v:fcs_reason| variable is set to indicate |
620 what happened and |v:fcs_choice| can be used | |
621 to tell Vim what to do next. | |
7 | 622 NOTE: When this autocommand is executed, the |
623 current buffer "%" may be different from the | |
624 buffer that was changed "<afile>". | |
625 NOTE: The commands must not change the current | |
626 buffer, jump to another buffer or delete a | |
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627 buffer. *E246* *E811* |
7 | 628 NOTE: This event never nests, to avoid an |
629 endless loop. This means that while executing | |
630 commands for the FileChangedShell event no | |
631 other FileChangedShell event will be | |
632 triggered. | |
766 | 633 *FileChangedShellPost* |
634 FileChangedShellPost After handling a file that was changed outside | |
635 of Vim. Can be used to update the statusline. | |
579 | 636 *FileEncoding* |
637 FileEncoding Obsolete. It still works and is equivalent | |
638 to |EncodingChanged|. | |
639 *FileReadCmd* | |
640 FileReadCmd Before reading a file with a ":read" command. | |
641 Should do the reading of the file. |Cmd-event| | |
642 *FileReadPost* | |
643 FileReadPost After reading a file with a ":read" command. | |
644 Note that Vim sets the '[ and '] marks to the | |
645 first and last line of the read. This can be | |
646 used to operate on the lines just read. | |
647 *FileReadPre* | |
648 FileReadPre Before reading a file with a ":read" command. | |
649 *FileType* | |
1154 | 650 FileType When the 'filetype' option has been set. The |
651 pattern is matched against the filetype. | |
579 | 652 <afile> can be used for the name of the file |
653 where this option was set, and <amatch> for | |
654 the new value of 'filetype'. | |
655 See |filetypes|. | |
656 *FileWriteCmd* | |
657 FileWriteCmd Before writing to a file, when not writing the | |
658 whole buffer. Should do the writing to the | |
659 file. Should not change the buffer. Use the | |
660 '[ and '] marks for the range of lines. | |
661 |Cmd-event| | |
662 *FileWritePost* | |
663 FileWritePost After writing to a file, when not writing the | |
664 whole buffer. | |
665 *FileWritePre* | |
666 FileWritePre Before writing to a file, when not writing the | |
667 whole buffer. Use the '[ and '] marks for the | |
668 range of lines. | |
669 *FilterReadPost* | |
670 FilterReadPost After reading a file from a filter command. | |
671 Vim checks the pattern against the name of | |
672 the current buffer as with FilterReadPre. | |
673 Not triggered when 'shelltemp' is off. | |
674 *FilterReadPre* *E135* | |
675 FilterReadPre Before reading a file from a filter command. | |
676 Vim checks the pattern against the name of | |
677 the current buffer, not the name of the | |
678 temporary file that is the output of the | |
679 filter command. | |
680 Not triggered when 'shelltemp' is off. | |
681 *FilterWritePost* | |
682 FilterWritePost After writing a file for a filter command or | |
683 making a diff. | |
684 Vim checks the pattern against the name of | |
685 the current buffer as with FilterWritePre. | |
686 Not triggered when 'shelltemp' is off. | |
687 *FilterWritePre* | |
688 FilterWritePre Before writing a file for a filter command or | |
689 making a diff. | |
690 Vim checks the pattern against the name of | |
691 the current buffer, not the name of the | |
692 temporary file that is the output of the | |
693 filter command. | |
694 Not triggered when 'shelltemp' is off. | |
7 | 695 *FocusGained* |
696 FocusGained When Vim got input focus. Only for the GUI | |
697 version and a few console versions where this | |
698 can be detected. | |
699 *FocusLost* | |
700 FocusLost When Vim lost input focus. Only for the GUI | |
701 version and a few console versions where this | |
11 | 702 can be detected. May also happen when a |
703 dialog pops up. | |
7 | 704 *FuncUndefined* |
705 FuncUndefined When a user function is used but it isn't | |
706 defined. Useful for defining a function only | |
1154 | 707 when it's used. The pattern is matched |
708 against the function name. Both <amatch> and | |
709 <afile> are set to the name of the function. | |
6154 | 710 NOTE: When writing Vim scripts a better |
711 alternative is to use an autoloaded function. | |
161 | 712 See |autoload-functions|. |
579 | 713 *GUIEnter* |
714 GUIEnter After starting the GUI successfully, and after | |
715 opening the window. It is triggered before | |
716 VimEnter when using gvim. Can be used to | |
717 position the window from a .gvimrc file: > | |
718 :autocmd GUIEnter * winpos 100 50 | |
1154 | 719 < *GUIFailed* |
720 GUIFailed After starting the GUI failed. Vim may | |
721 continue to run in the terminal, if possible | |
722 (only on Unix and alikes, when connecting the | |
723 X server fails). You may want to quit Vim: > | |
724 :autocmd GUIFailed * qall | |
579 | 725 < *InsertChange* |
726 InsertChange When typing <Insert> while in Insert or | |
727 Replace mode. The |v:insertmode| variable | |
728 indicates the new mode. | |
729 Be careful not to move the cursor or do | |
730 anything else that the user does not expect. | |
2845 | 731 *InsertCharPre* |
732 InsertCharPre When a character is typed in Insert mode, | |
733 before inserting the char. | |
734 The |v:char| variable indicates the char typed | |
735 and can be changed during the event to insert | |
736 a different character. When |v:char| is set | |
737 to more than one character this text is | |
738 inserted literally. | |
739 It is not allowed to change the text |textlock|. | |
740 The event is not triggered when 'paste' is | |
741 set. | |
579 | 742 *InsertEnter* |
1154 | 743 InsertEnter Just before starting Insert mode. Also for |
744 Replace mode and Virtual Replace mode. The | |
579 | 745 |v:insertmode| variable indicates the mode. |
4448 | 746 Be careful not to do anything else that the |
747 user does not expect. | |
748 The cursor is restored afterwards. If you do | |
749 not want that set |v:char| to a non-empty | |
750 string. | |
579 | 751 *InsertLeave* |
752 InsertLeave When leaving Insert mode. Also when using | |
753 CTRL-O |i_CTRL-O|. But not for |i_CTRL-C|. | |
754 *MenuPopup* | |
755 MenuPopup Just before showing the popup menu (under the | |
756 right mouse button). Useful for adjusting the | |
757 menu for what is under the cursor or mouse | |
758 pointer. | |
759 The pattern is matched against a single | |
760 character representing the mode: | |
761 n Normal | |
762 v Visual | |
763 o Operator-pending | |
764 i Insert | |
843 | 765 c Command line |
6935 | 766 *OptionSet* |
767 OptionSet After setting an option. The pattern is | |
768 matched against the long option name. | |
769 The |v:option_old| variable indicates the | |
770 old option value, |v:option_new| variable | |
771 indicates the newly set value, the | |
772 |v:option_type| variable indicates whether | |
773 it's global or local scoped and |<amatch>| | |
774 indicates what option has been set. | |
775 | |
776 Is not triggered on startup and for the 'key' | |
777 option for obvious reasons. | |
778 | |
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779 Usage example: Check for the existence of the |
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780 directory in the 'backupdir' and 'undodir' |
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781 options, create the directory if it doesn't |
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782 exist yet. |
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783 |
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784 Note: It's a bad idea to reset an option |
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785 during this autocommand, this may break a |
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786 plugin. You can always use `:noa` to prevent |
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787 triggering this autocommand. |
6935 | 788 |
579 | 789 *QuickFixCmdPre* |
790 QuickFixCmdPre Before a quickfix command is run (|:make|, | |
657 | 791 |:lmake|, |:grep|, |:lgrep|, |:grepadd|, |
792 |:lgrepadd|, |:vimgrep|, |:lvimgrep|, | |
3281 | 793 |:vimgrepadd|, |:lvimgrepadd|, |:cscope|, |
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794 |:cfile|, |:cgetfile|, |:caddfile|, |:lfile|, |
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795 |:lgetfile|, |:laddfile|, |:helpgrep|, |
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796 |:lhelpgrep|, |:cexpr|, |:cgetexpr|, |
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797 |:caddexpr|, |:cbuffer|, |:cgetbuffer|, |
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798 |:caddbuffer|). |
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799 The pattern is matched against the command |
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800 being run. When |:grep| is used but 'grepprg' |
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801 is set to "internal" it still matches "grep". |
579 | 802 This command cannot be used to set the |
803 'makeprg' and 'grepprg' variables. | |
804 If this command causes an error, the quickfix | |
805 command is not executed. | |
806 *QuickFixCmdPost* | |
807 QuickFixCmdPost Like QuickFixCmdPre, but after a quickfix | |
842 | 808 command is run, before jumping to the first |
3404 | 809 location. For |:cfile| and |:lfile| commands |
810 it is run after error file is read and before | |
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811 moving to the first error. |
3404 | 812 See |QuickFixCmdPost-example|. |
3682 | 813 *QuitPre* |
4229 | 814 QuitPre When using `:quit`, `:wq` or `:qall`, before |
815 deciding whether it closes the current window | |
816 or quits Vim. Can be used to close any | |
817 non-essential window if the current window is | |
818 the last ordinary window. | |
579 | 819 *RemoteReply* |
820 RemoteReply When a reply from a Vim that functions as | |
1154 | 821 server was received |server2client()|. The |
822 pattern is matched against the {serverid}. | |
579 | 823 <amatch> is equal to the {serverid} from which |
824 the reply was sent, and <afile> is the actual | |
825 reply string. | |
826 Note that even if an autocommand is defined, | |
827 the reply should be read with |remote_read()| | |
828 to consume it. | |
829 *SessionLoadPost* | |
830 SessionLoadPost After loading the session file created using | |
831 the |:mksession| command. | |
724 | 832 *ShellCmdPost* |
833 ShellCmdPost After executing a shell command with |:!cmd|, | |
834 |:shell|, |:make| and |:grep|. Can be used to | |
835 check for any changed files. | |
836 *ShellFilterPost* | |
837 ShellFilterPost After executing a shell command with | |
838 ":{range}!cmd", ":w !cmd" or ":r !cmd". | |
839 Can be used to check for any changed files. | |
716 | 840 *SourcePre* |
841 SourcePre Before sourcing a Vim script. |:source| | |
1061 | 842 <afile> is the name of the file being sourced. |
843 *SourceCmd* | |
844 SourceCmd When sourcing a Vim script. |:source| | |
845 <afile> is the name of the file being sourced. | |
846 The autocommand must source this file. | |
847 |Cmd-event| | |
650 | 848 *SpellFileMissing* |
849 SpellFileMissing When trying to load a spell checking file and | |
1061 | 850 it can't be found. The pattern is matched |
851 against the language. <amatch> is the | |
852 language, 'encoding' also matters. See | |
650 | 853 |spell-SpellFileMissing|. |
579 | 854 *StdinReadPost* |
855 StdinReadPost After reading from the stdin into the buffer, | |
856 before executing the modelines. Only used | |
857 when the "-" argument was used when Vim was | |
858 started |--|. | |
859 *StdinReadPre* | |
860 StdinReadPre Before reading from stdin into the buffer. | |
861 Only used when the "-" argument was used when | |
862 Vim was started |--|. | |
863 *SwapExists* | |
864 SwapExists Detected an existing swap file when starting | |
865 to edit a file. Only when it is possible to | |
866 select a way to handle the situation, when Vim | |
867 would ask the user what to do. | |
868 The |v:swapname| variable holds the name of | |
590 | 869 the swap file found, <afile> the file being |
870 edited. |v:swapcommand| may contain a command | |
871 to be executed in the opened file. | |
872 The commands should set the |v:swapchoice| | |
873 variable to a string with one character to | |
874 tell Vim what should be done next: | |
579 | 875 'o' open read-only |
876 'e' edit the file anyway | |
877 'r' recover | |
878 'd' delete the swap file | |
879 'q' quit, don't edit the file | |
880 'a' abort, like hitting CTRL-C | |
881 When set to an empty string the user will be | |
882 asked, as if there was no SwapExists autocmd. | |
1919 | 883 *E812* |
884 It is not allowed to change to another buffer, | |
885 change a buffer name or change directory | |
886 here. | |
579 | 887 *Syntax* |
1154 | 888 Syntax When the 'syntax' option has been set. The |
889 pattern is matched against the syntax name. | |
579 | 890 <afile> can be used for the name of the file |
891 where this option was set, and <amatch> for | |
892 the new value of 'syntax'. | |
893 See |:syn-on|. | |
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894 *TabClosed* |
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895 TabClosed After closing a tab page. |
677 | 896 *TabEnter* |
897 TabEnter Just after entering a tab page. |tab-page| | |
872 | 898 After triggering the WinEnter and before |
899 triggering the BufEnter event. | |
677 | 900 *TabLeave* |
901 TabLeave Just before leaving a tab page. |tab-page| | |
902 A WinLeave event will have been triggered | |
903 first. | |
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904 *TabNew* |
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905 TabNew When a tab page was created. |tab-page| |
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906 A WinEnter event will have been triggered |
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907 first, TabEnter follows. |
579 | 908 *TermChanged* |
909 TermChanged After the value of 'term' has changed. Useful | |
910 for re-loading the syntax file to update the | |
911 colors, fonts and other terminal-dependent | |
912 settings. Executed for all loaded buffers. | |
913 *TermResponse* | |
914 TermResponse After the response to |t_RV| is received from | |
915 the terminal. The value of |v:termresponse| | |
916 can be used to do things depending on the | |
2788 | 917 terminal version. Note that this event may be |
918 triggered halfway executing another event, | |
919 especially if file I/O, a shell command or | |
920 anything else that takes time is involved. | |
4264 | 921 *TextChanged* |
922 TextChanged After a change was made to the text in the | |
923 current buffer in Normal mode. That is when | |
924 |b:changedtick| has changed. | |
925 Not triggered when there is typeahead or when | |
926 an operator is pending. | |
927 Careful: This is triggered very often, don't | |
928 do anything that the user does not expect or | |
929 that is slow. | |
930 *TextChangedI* | |
931 TextChangedI After a change was made to the text in the | |
932 current buffer in Insert mode. | |
933 Not triggered when the popup menu is visible. | |
934 Otherwise the same as TextChanged. | |
579 | 935 *User* |
936 User Never executed automatically. To be used for | |
937 autocommands that are only executed with | |
938 ":doautocmd". | |
939 *UserGettingBored* | |
4264 | 940 UserGettingBored When the user presses the same key 42 times. |
941 Just kidding! :-) | |
579 | 942 *VimEnter* |
943 VimEnter After doing all the startup stuff, including | |
944 loading .vimrc files, executing the "-c cmd" | |
945 arguments, creating all windows and loading | |
946 the buffers in them. | |
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947 Just before this event is triggered the |
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948 |v:vim_did_enter| variable is set, so that you |
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949 can do: > |
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950 if v:vim_did_enter |
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951 call s:init() |
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952 else |
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953 au VimEnter * call s:init() |
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954 endif |
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955 < *VimLeave* |
579 | 956 VimLeave Before exiting Vim, just after writing the |
957 .viminfo file. Executed only once, like | |
958 VimLeavePre. | |
959 To detect an abnormal exit use |v:dying|. | |
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960 When v:dying is 2 or more this event is not |
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961 triggered. |
579 | 962 *VimLeavePre* |
963 VimLeavePre Before exiting Vim, just before writing the | |
964 .viminfo file. This is executed only once, | |
965 if there is a match with the name of what | |
966 happens to be the current buffer when exiting. | |
967 Mostly useful with a "*" pattern. > | |
968 :autocmd VimLeavePre * call CleanupStuff() | |
969 < To detect an abnormal exit use |v:dying|. | |
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970 When v:dying is 2 or more this event is not |
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971 triggered. |
766 | 972 *VimResized* |
973 VimResized After the Vim window was resized, thus 'lines' | |
974 and/or 'columns' changed. Not when starting | |
975 up though. | |
7 | 976 *WinEnter* |
977 WinEnter After entering another window. Not done for | |
978 the first window, when Vim has just started. | |
979 Useful for setting the window height. | |
980 If the window is for another buffer, Vim | |
981 executes the BufEnter autocommands after the | |
982 WinEnter autocommands. | |
983 Note: When using ":split fname" the WinEnter | |
984 event is triggered after the split but before | |
985 the file "fname" is loaded. | |
986 *WinLeave* | |
987 WinLeave Before leaving a window. If the window to be | |
988 entered next is for a different buffer, Vim | |
989 executes the BufLeave autocommands before the | |
990 WinLeave autocommands (but not for ":new"). | |
991 Not used for ":qa" or ":q" when exiting Vim. | |
992 | |
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993 *WinNew* |
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994 WinNew When a new window was created. Not done for |
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995 the first window, when Vim has just started. |
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996 Before a WinEnter event. |
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997 |
7 | 998 ============================================================================== |
999 6. Patterns *autocmd-patterns* *{pat}* | |
1000 | |
6741 | 1001 The {pat} argument can be a comma separated list. This works as if the |
1002 command was given with each pattern separately. Thus this command: > | |
1003 :autocmd BufRead *.txt,*.info set et | |
1004 Is equivalent to: > | |
1005 :autocmd BufRead *.txt set et | |
1006 :autocmd BufRead *.info set et | |
1007 | |
7 | 1008 The file pattern {pat} is tested for a match against the file name in one of |
1009 two ways: | |
1010 1. When there is no '/' in the pattern, Vim checks for a match against only | |
1011 the tail part of the file name (without its leading directory path). | |
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1012 2. When there is a '/' in the pattern, Vim checks for a match against both the |
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1013 short file name (as you typed it) and the full file name (after expanding |
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1014 it to a full path and resolving symbolic links). |
7 | 1015 |
40 | 1016 The special pattern <buffer> or <buffer=N> is used for buffer-local |
1017 autocommands |autocmd-buflocal|. This pattern is not matched against the name | |
1018 of a buffer. | |
1019 | |
7 | 1020 Examples: > |
1021 :autocmd BufRead *.txt set et | |
1022 Set the 'et' option for all text files. > | |
1023 | |
1024 :autocmd BufRead /vim/src/*.c set cindent | |
1025 Set the 'cindent' option for C files in the /vim/src directory. > | |
1026 | |
1027 :autocmd BufRead /tmp/*.c set ts=5 | |
1028 If you have a link from "/tmp/test.c" to "/home/nobody/vim/src/test.c", and | |
1029 you start editing "/tmp/test.c", this autocommand will match. | |
1030 | |
1031 Note: To match part of a path, but not from the root directory, use a '*' as | |
1032 the first character. Example: > | |
1033 :autocmd BufRead */doc/*.txt set tw=78 | |
1034 This autocommand will for example be executed for "/tmp/doc/xx.txt" and | |
1035 "/usr/home/piet/doc/yy.txt". The number of directories does not matter here. | |
1036 | |
1037 | |
1038 The file name that the pattern is matched against is after expanding | |
1621 | 1039 wildcards. Thus if you issue this command: > |
7 | 1040 :e $ROOTDIR/main.$EXT |
1041 The argument is first expanded to: > | |
1042 /usr/root/main.py | |
1043 Before it's matched with the pattern of the autocommand. Careful with this | |
1044 when using events like FileReadCmd, the value of <amatch> may not be what you | |
1045 expect. | |
1046 | |
1047 | |
1048 Environment variables can be used in a pattern: > | |
1049 :autocmd BufRead $VIMRUNTIME/doc/*.txt set expandtab | |
1050 And ~ can be used for the home directory (if $HOME is defined): > | |
1051 :autocmd BufWritePost ~/.vimrc so ~/.vimrc | |
1052 :autocmd BufRead ~archive/* set readonly | |
1053 The environment variable is expanded when the autocommand is defined, not when | |
1054 the autocommand is executed. This is different from the command! | |
1055 | |
1056 *file-pattern* | |
1057 The pattern is interpreted like mostly used in file names: | |
5294 | 1058 * matches any sequence of characters; Unusual: includes path |
5277 | 1059 separators |
7 | 1060 ? matches any single character |
1061 \? matches a '?' | |
1062 . matches a '.' | |
1063 ~ matches a '~' | |
1064 , separates patterns | |
1065 \, matches a ',' | |
1066 { } like \( \) in a |pattern| | |
1067 , inside { }: like \| in a |pattern| | |
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1068 \} literal } |
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1069 \{ literal { |
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1070 \\\{n,m\} like \{n,m} in a |pattern| |
7 | 1071 \ special meaning like in a |pattern| |
1072 [ch] matches 'c' or 'h' | |
1073 [^ch] match any character but 'c' and 'h' | |
1074 | |
1075 Note that for all systems the '/' character is used for path separator (even | |
1076 MS-DOS and OS/2). This was done because the backslash is difficult to use | |
1077 in a pattern and to make the autocommands portable across different systems. | |
1078 | |
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1079 It is possible to use |pattern| items, but they may not work as expected, |
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1080 because of the translation done for the above. |
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1081 |
40 | 1082 *autocmd-changes* |
7 | 1083 Matching with the pattern is done when an event is triggered. Changing the |
1084 buffer name in one of the autocommands, or even deleting the buffer, does not | |
1085 change which autocommands will be executed. Example: > | |
1086 | |
1087 au BufEnter *.foo bdel | |
1088 au BufEnter *.foo set modified | |
1089 | |
1090 This will delete the current buffer and then set 'modified' in what has become | |
1091 the current buffer instead. Vim doesn't take into account that "*.foo" | |
1092 doesn't match with that buffer name. It matches "*.foo" with the name of the | |
1093 buffer at the moment the event was triggered. | |
1094 | |
40 | 1095 However, buffer-local autocommands will not be executed for a buffer that has |
1096 been wiped out with |:bwipe|. After deleting the buffer with |:bdel| the | |
1097 buffer actually still exists (it becomes unlisted), thus the autocommands are | |
1098 still executed. | |
1099 | |
7 | 1100 ============================================================================== |
856 | 1101 7. Buffer-local autocommands *autocmd-buflocal* *autocmd-buffer-local* |
1102 *<buffer=N>* *<buffer=abuf>* *E680* | |
40 | 1103 |
1104 Buffer-local autocommands are attached to a specific buffer. They are useful | |
1105 if the buffer does not have a name and when the name does not match a specific | |
1106 pattern. But it also means they must be explicitly added to each buffer. | |
1107 | |
1108 Instead of a pattern buffer-local autocommands use one of these forms: | |
1109 <buffer> current buffer | |
1110 <buffer=99> buffer number 99 | |
1111 <buffer=abuf> using <abuf> (only when executing autocommands) | |
1112 |<abuf>| | |
1113 | |
1114 Examples: > | |
1115 :au CursorHold <buffer> echo 'hold' | |
1116 :au CursorHold <buffer=33> echo 'hold' | |
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1117 :au BufNewFile * au CursorHold <buffer=abuf> echo 'hold' |
40 | 1118 |
1119 All the commands for autocommands also work with buffer-local autocommands, | |
1120 simply use the special string instead of the pattern. Examples: > | |
856 | 1121 :au! * <buffer> " remove buffer-local autocommands for |
1122 " current buffer | |
1123 :au! * <buffer=33> " remove buffer-local autocommands for | |
1124 " buffer #33 | |
1621 | 1125 :bufdo :au! CursorHold <buffer> " remove autocmd for given event for all |
856 | 1126 " buffers |
1127 :au * <buffer> " list buffer-local autocommands for | |
1128 " current buffer | |
40 | 1129 |
1130 Note that when an autocommand is defined for the current buffer, it is stored | |
1131 with the buffer number. Thus it uses the form "<buffer=12>", where 12 is the | |
1132 number of the current buffer. You will see this when listing autocommands, | |
1133 for example. | |
1134 | |
1135 To test for presence of buffer-local autocommands use the |exists()| function | |
1136 as follows: > | |
1137 :if exists("#CursorHold#<buffer=12>") | ... | endif | |
1138 :if exists("#CursorHold#<buffer>") | ... | endif " for current buffer | |
1139 | |
1140 When a buffer is wiped out its buffer-local autocommands are also gone, of | |
1141 course. Note that when deleting a buffer, e.g., with ":bdel", it is only | |
1142 unlisted, the autocommands are still present. In order to see the removal of | |
1143 buffer-local autocommands: > | |
1144 :set verbose=6 | |
1145 | |
1146 It is not possible to define buffer-local autocommands for a non-existent | |
1147 buffer. | |
1148 | |
1149 ============================================================================== | |
1150 8. Groups *autocmd-groups* | |
7 | 1151 |
1152 Autocommands can be put together in a group. This is useful for removing or | |
1153 executing a group of autocommands. For example, all the autocommands for | |
1154 syntax highlighting are put in the "highlight" group, to be able to execute | |
1155 ":doautoall highlight BufRead" when the GUI starts. | |
1156 | |
1157 When no specific group is selected, Vim uses the default group. The default | |
1158 group does not have a name. You cannot execute the autocommands from the | |
1159 default group separately; you can execute them only by executing autocommands | |
1160 for all groups. | |
1161 | |
1162 Normally, when executing autocommands automatically, Vim uses the autocommands | |
1163 for all groups. The group only matters when executing autocommands with | |
1164 ":doautocmd" or ":doautoall", or when defining or deleting autocommands. | |
1165 | |
1166 The group name can contain any characters except white space. The group name | |
1167 "end" is reserved (also in uppercase). | |
1168 | |
1169 The group name is case sensitive. Note that this is different from the event | |
1170 name! | |
1171 | |
1172 *:aug* *:augroup* | |
1173 :aug[roup] {name} Define the autocmd group name for the | |
1174 following ":autocmd" commands. The name "end" | |
1175 or "END" selects the default group. | |
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1176 To avoid confusion, the name should be |
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1177 different from existing {event} names, as this |
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1178 most likely will not do what you intended. |
7 | 1179 |
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|
1180 *:augroup-delete* *E367* *W19* *E936* |
7 | 1181 :aug[roup]! {name} Delete the autocmd group {name}. Don't use |
1182 this if there is still an autocommand using | |
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Christian Brabandt <cb@256bit.org>
parents:
9653
diff
changeset
|
1183 this group! You will get a warning if doing |
10140
b11ceef7116e
commit https://github.com/vim/vim/commit/64d8e25bf6efe5f18b032563521c3ce278c316ab
Christian Brabandt <cb@256bit.org>
parents:
9737
diff
changeset
|
1184 it anyway. when the group is the current group |
b11ceef7116e
commit https://github.com/vim/vim/commit/64d8e25bf6efe5f18b032563521c3ce278c316ab
Christian Brabandt <cb@256bit.org>
parents:
9737
diff
changeset
|
1185 you will get error E936. |
7 | 1186 |
1187 To enter autocommands for a specific group, use this method: | |
1188 1. Select the group with ":augroup {name}". | |
1189 2. Delete any old autocommands with ":au!". | |
1190 3. Define the autocommands. | |
1191 4. Go back to the default group with "augroup END". | |
1192 | |
1193 Example: > | |
1194 :augroup uncompress | |
1195 : au! | |
1196 : au BufEnter *.gz %!gunzip | |
1197 :augroup END | |
1198 | |
1199 This prevents having the autocommands defined twice (e.g., after sourcing the | |
1200 .vimrc file again). | |
1201 | |
1202 ============================================================================== | |
40 | 1203 9. Executing autocommands *autocmd-execute* |
7 | 1204 |
1205 Vim can also execute Autocommands non-automatically. This is useful if you | |
1206 have changed autocommands, or when Vim has executed the wrong autocommands | |
1207 (e.g., the file pattern match was wrong). | |
1208 | |
1209 Note that the 'eventignore' option applies here too. Events listed in this | |
1210 option will not cause any commands to be executed. | |
1211 | |
1212 *:do* *:doau* *:doautocmd* *E217* | |
3356 | 1213 :do[autocmd] [<nomodeline>] [group] {event} [fname] |
7 | 1214 Apply the autocommands matching [fname] (default: |
1215 current file name) for {event} to the current buffer. | |
1216 You can use this when the current file name does not | |
1217 match the right pattern, after changing settings, or | |
1218 to execute autocommands for a certain event. | |
1219 It's possible to use this inside an autocommand too, | |
1220 so you can base the autocommands for one extension on | |
1221 another extension. Example: > | |
3224 | 1222 :au BufEnter *.cpp so ~/.vimrc_cpp |
1223 :au BufEnter *.cpp doau BufEnter x.c | |
7 | 1224 < Be careful to avoid endless loops. See |
1225 |autocmd-nested|. | |
1226 | |
1227 When the [group] argument is not given, Vim executes | |
1228 the autocommands for all groups. When the [group] | |
1229 argument is included, Vim executes only the matching | |
1230 autocommands for that group. Note: if you use an | |
1231 undefined group name, Vim gives you an error message. | |
3350 | 1232 *<nomodeline>* |
1233 After applying the autocommands the modelines are | |
1234 processed, so that their settings overrule the | |
1235 settings from autocommands, like what happens when | |
1236 editing a file. This is skipped when the <nomodeline> | |
1237 argument is present. You probably want to use | |
1238 <nomodeline> for events that are not used when loading | |
1239 a buffer, such as |User|. | |
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Christian Brabandt <cb@256bit.org>
parents:
8951
diff
changeset
|
1240 Processing modelines is also skipped when no |
64035abb986b
commit https://github.com/vim/vim/commit/c95a302a4c42ec8230473cd4a5e0064d0a143aa8
Christian Brabandt <cb@256bit.org>
parents:
8951
diff
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|
1241 matching autocommands were executed. |
7 | 1242 |
1243 *:doautoa* *:doautoall* | |
3342 | 1244 :doautoa[ll] [<nomodeline>] [group] {event} [fname] |
7 | 1245 Like ":doautocmd", but apply the autocommands to each |
2033
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Update documentation files.
Bram Moolenaar <bram@zimbu.org>
parents:
1919
diff
changeset
|
1246 loaded buffer. Note that [fname] is used to select |
7 | 1247 the autocommands, not the buffers to which they are |
1248 applied. | |
1249 Careful: Don't use this for autocommands that delete a | |
1250 buffer, change to another buffer or change the | |
1251 contents of a buffer; the result is unpredictable. | |
1252 This command is intended for autocommands that set | |
1253 options, change highlighting, and things like that. | |
1254 | |
1255 ============================================================================== | |
40 | 1256 10. Using autocommands *autocmd-use* |
7 | 1257 |
1258 For WRITING FILES there are four possible sets of events. Vim uses only one | |
1259 of these sets for a write command: | |
1260 | |
1261 BufWriteCmd BufWritePre BufWritePost writing the whole buffer | |
1262 FilterWritePre FilterWritePost writing to filter temp file | |
1263 FileAppendCmd FileAppendPre FileAppendPost appending to a file | |
1264 FileWriteCmd FileWritePre FileWritePost any other file write | |
1265 | |
1266 When there is a matching "*Cmd" autocommand, it is assumed it will do the | |
1267 writing. No further writing is done and the other events are not triggered. | |
1268 |Cmd-event| | |
1269 | |
1270 Note that the *WritePost commands should undo any changes to the buffer that | |
1271 were caused by the *WritePre commands; otherwise, writing the file will have | |
1272 the side effect of changing the buffer. | |
1273 | |
1274 Before executing the autocommands, the buffer from which the lines are to be | |
1275 written temporarily becomes the current buffer. Unless the autocommands | |
1276 change the current buffer or delete the previously current buffer, the | |
1277 previously current buffer is made the current buffer again. | |
1278 | |
1279 The *WritePre and *AppendPre autocommands must not delete the buffer from | |
1280 which the lines are to be written. | |
1281 | |
1282 The '[ and '] marks have a special position: | |
1283 - Before the *ReadPre event the '[ mark is set to the line just above where | |
1284 the new lines will be inserted. | |
1285 - Before the *ReadPost event the '[ mark is set to the first line that was | |
1286 just read, the '] mark to the last line. | |
26 | 1287 - Before executing the *WriteCmd, *WritePre and *AppendPre autocommands the '[ |
1288 mark is set to the first line that will be written, the '] mark to the last | |
1289 line. | |
7 | 1290 Careful: '[ and '] change when using commands that change the buffer. |
1291 | |
1292 In commands which expect a file name, you can use "<afile>" for the file name | |
1293 that is being read |:<afile>| (you can also use "%" for the current file | |
1294 name). "<abuf>" can be used for the buffer number of the currently effective | |
1295 buffer. This also works for buffers that doesn't have a name. But it doesn't | |
1296 work for files without a buffer (e.g., with ":r file"). | |
1297 | |
1298 *gzip-example* | |
1299 Examples for reading and writing compressed files: > | |
1300 :augroup gzip | |
1301 : autocmd! | |
1302 : autocmd BufReadPre,FileReadPre *.gz set bin | |
1303 : autocmd BufReadPost,FileReadPost *.gz '[,']!gunzip | |
1304 : autocmd BufReadPost,FileReadPost *.gz set nobin | |
1305 : autocmd BufReadPost,FileReadPost *.gz execute ":doautocmd BufReadPost " . expand("%:r") | |
1306 : autocmd BufWritePost,FileWritePost *.gz !mv <afile> <afile>:r | |
1307 : autocmd BufWritePost,FileWritePost *.gz !gzip <afile>:r | |
1308 | |
1309 : autocmd FileAppendPre *.gz !gunzip <afile> | |
1310 : autocmd FileAppendPre *.gz !mv <afile>:r <afile> | |
1311 : autocmd FileAppendPost *.gz !mv <afile> <afile>:r | |
1312 : autocmd FileAppendPost *.gz !gzip <afile>:r | |
1313 :augroup END | |
1314 | |
1315 The "gzip" group is used to be able to delete any existing autocommands with | |
1316 ":autocmd!", for when the file is sourced twice. | |
1317 | |
1318 ("<afile>:r" is the file name without the extension, see |:_%:|) | |
1319 | |
1320 The commands executed for the BufNewFile, BufRead/BufReadPost, BufWritePost, | |
1321 FileAppendPost and VimLeave events do not set or reset the changed flag of the | |
1322 buffer. When you decompress the buffer with the BufReadPost autocommands, you | |
1323 can still exit with ":q". When you use ":undo" in BufWritePost to undo the | |
1324 changes made by BufWritePre commands, you can still do ":q" (this also makes | |
1325 "ZZ" work). If you do want the buffer to be marked as modified, set the | |
1326 'modified' option. | |
1327 | |
1328 To execute Normal mode commands from an autocommand, use the ":normal" | |
1329 command. Use with care! If the Normal mode command is not finished, the user | |
1330 needs to type characters (e.g., after ":normal m" you need to type a mark | |
1331 name). | |
1332 | |
1333 If you want the buffer to be unmodified after changing it, reset the | |
1334 'modified' option. This makes it possible to exit the buffer with ":q" | |
1335 instead of ":q!". | |
1336 | |
1337 *autocmd-nested* *E218* | |
1338 By default, autocommands do not nest. If you use ":e" or ":w" in an | |
1339 autocommand, Vim does not execute the BufRead and BufWrite autocommands for | |
1340 those commands. If you do want this, use the "nested" flag for those commands | |
1341 in which you want nesting. For example: > | |
1342 :autocmd FileChangedShell *.c nested e! | |
1343 The nesting is limited to 10 levels to get out of recursive loops. | |
1344 | |
1345 It's possible to use the ":au" command in an autocommand. This can be a | |
1346 self-modifying command! This can be useful for an autocommand that should | |
1347 execute only once. | |
1348 | |
590 | 1349 If you want to skip autocommands for one command, use the |:noautocmd| command |
1350 modifier or the 'eventignore' option. | |
7 | 1351 |
1352 Note: When reading a file (with ":read file" or with a filter command) and the | |
1353 last line in the file does not have an <EOL>, Vim remembers this. At the next | |
1354 write (with ":write file" or with a filter command), if the same line is | |
1355 written again as the last line in a file AND 'binary' is set, Vim does not | |
1356 supply an <EOL>. This makes a filter command on the just read lines write the | |
1357 same file as was read, and makes a write command on just filtered lines write | |
1358 the same file as was read from the filter. For example, another way to write | |
1359 a compressed file: > | |
1360 | |
1361 :autocmd FileWritePre *.gz set bin|'[,']!gzip | |
1362 :autocmd FileWritePost *.gz undo|set nobin | |
1363 < | |
1364 *autocommand-pattern* | |
1365 You can specify multiple patterns, separated by commas. Here are some | |
1366 examples: > | |
1367 | |
1368 :autocmd BufRead * set tw=79 nocin ic infercase fo=2croq | |
1369 :autocmd BufRead .letter set tw=72 fo=2tcrq | |
1370 :autocmd BufEnter .letter set dict=/usr/lib/dict/words | |
1371 :autocmd BufLeave .letter set dict= | |
1372 :autocmd BufRead,BufNewFile *.c,*.h set tw=0 cin noic | |
1373 :autocmd BufEnter *.c,*.h abbr FOR for (i = 0; i < 3; ++i)<CR>{<CR>}<Esc>O | |
1374 :autocmd BufLeave *.c,*.h unabbr FOR | |
1375 | |
1376 For makefiles (makefile, Makefile, imakefile, makefile.unix, etc.): > | |
1377 | |
1378 :autocmd BufEnter ?akefile* set include=^s\=include | |
1379 :autocmd BufLeave ?akefile* set include& | |
1380 | |
1381 To always start editing C files at the first function: > | |
1382 | |
1383 :autocmd BufRead *.c,*.h 1;/^{ | |
1384 | |
1385 Without the "1;" above, the search would start from wherever the file was | |
1386 entered, rather than from the start of the file. | |
1387 | |
1388 *skeleton* *template* | |
1389 To read a skeleton (template) file when opening a new file: > | |
1390 | |
1391 :autocmd BufNewFile *.c 0r ~/vim/skeleton.c | |
1392 :autocmd BufNewFile *.h 0r ~/vim/skeleton.h | |
1393 :autocmd BufNewFile *.java 0r ~/vim/skeleton.java | |
1394 | |
1395 To insert the current date and time in a *.html file when writing it: > | |
1396 | |
1397 :autocmd BufWritePre,FileWritePre *.html ks|call LastMod()|'s | |
1398 :fun LastMod() | |
1399 : if line("$") > 20 | |
1400 : let l = 20 | |
1401 : else | |
1402 : let l = line("$") | |
1403 : endif | |
1404 : exe "1," . l . "g/Last modified: /s/Last modified: .*/Last modified: " . | |
1405 : \ strftime("%Y %b %d") | |
1406 :endfun | |
1407 | |
1408 You need to have a line "Last modified: <date time>" in the first 20 lines | |
1409 of the file for this to work. Vim replaces <date time> (and anything in the | |
1410 same line after it) with the current date and time. Explanation: | |
1411 ks mark current position with mark 's' | |
1412 call LastMod() call the LastMod() function to do the work | |
1413 's return the cursor to the old position | |
1414 The LastMod() function checks if the file is shorter than 20 lines, and then | |
1415 uses the ":g" command to find lines that contain "Last modified: ". For those | |
1416 lines the ":s" command is executed to replace the existing date with the | |
1417 current one. The ":execute" command is used to be able to use an expression | |
1418 for the ":g" and ":s" commands. The date is obtained with the strftime() | |
1419 function. You can change its argument to get another date string. | |
1420 | |
1421 When entering :autocmd on the command-line, completion of events and command | |
1422 names may be done (with <Tab>, CTRL-D, etc.) where appropriate. | |
1423 | |
1424 Vim executes all matching autocommands in the order that you specify them. | |
1425 It is recommended that your first autocommand be used for all files by using | |
1426 "*" as the file pattern. This means that you can define defaults you like | |
1427 here for any settings, and if there is another matching autocommand it will | |
1428 override these. But if there is no other matching autocommand, then at least | |
1429 your default settings are recovered (if entering this file from another for | |
1430 which autocommands did match). Note that "*" will also match files starting | |
1431 with ".", unlike Unix shells. | |
1432 | |
1433 *autocmd-searchpat* | |
1434 Autocommands do not change the current search patterns. Vim saves the current | |
1435 search patterns before executing autocommands then restores them after the | |
1436 autocommands finish. This means that autocommands do not affect the strings | |
1437 highlighted with the 'hlsearch' option. Within autocommands, you can still | |
1438 use search patterns normally, e.g., with the "n" command. | |
1439 If you want an autocommand to set the search pattern, such that it is used | |
1440 after the autocommand finishes, use the ":let @/ =" command. | |
1441 The search-highlighting cannot be switched off with ":nohlsearch" in an | |
1442 autocommand. Use the 'h' flag in the 'viminfo' option to disable search- | |
1443 highlighting when starting Vim. | |
1444 | |
1445 *Cmd-event* | |
1446 When using one of the "*Cmd" events, the matching autocommands are expected to | |
1061 | 1447 do the file reading, writing or sourcing. This can be used when working with |
1448 a special kind of file, for example on a remote system. | |
7 | 1449 CAREFUL: If you use these events in a wrong way, it may have the effect of |
1450 making it impossible to read or write the matching files! Make sure you test | |
1451 your autocommands properly. Best is to use a pattern that will never match a | |
1452 normal file name, for example "ftp://*". | |
1453 | |
1454 When defining a BufReadCmd it will be difficult for Vim to recover a crashed | |
1455 editing session. When recovering from the original file, Vim reads only those | |
1456 parts of a file that are not found in the swap file. Since that is not | |
1457 possible with a BufReadCmd, use the |:preserve| command to make sure the | |
1458 original file isn't needed for recovery. You might want to do this only when | |
1459 you expect the file to be modified. | |
1460 | |
1061 | 1461 For file read and write commands the |v:cmdarg| variable holds the "++enc=" |
1462 and "++ff=" argument that are effective. These should be used for the command | |
1463 that reads/writes the file. The |v:cmdbang| variable is one when "!" was | |
1464 used, zero otherwise. | |
7 | 1465 |
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2345
diff
changeset
|
1466 See the $VIMRUNTIME/plugin/netrwPlugin.vim for examples. |
7 | 1467 |
590 | 1468 ============================================================================== |
1469 11. Disabling autocommands *autocmd-disable* | |
1470 | |
1471 To disable autocommands for some time use the 'eventignore' option. Note that | |
1472 this may cause unexpected behavior, make sure you restore 'eventignore' | |
1473 afterwards, using a |:try| block with |:finally|. | |
1474 | |
1475 *:noautocmd* *:noa* | |
1476 To disable autocommands for just one command use the ":noautocmd" command | |
1477 modifier. This will set 'eventignore' to "all" for the duration of the | |
1478 following command. Example: > | |
1479 | |
1480 :noautocmd w fname.gz | |
1481 | |
1482 This will write the file without triggering the autocommands defined by the | |
1483 gzip plugin. | |
1484 | |
40 | 1485 |
7 | 1486 vim:tw=78:ts=8:ft=help:norl: |