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annotate runtime/doc/map.txt @ 11272:6e4f21c7f07e
Added tag v8.0.0521 for changeset cd8dbed175a1338c226fc148f5b93087c71a01ef
author | Christian Brabandt <cb@256bit.org> |
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date | Wed, 29 Mar 2017 18:15:05 +0200 |
parents | d0a20101ecb2 |
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11160 | 1 *map.txt* For Vim version 8.0. Last change: 2017 Mar 10 |
7 | 2 |
3 | |
4 VIM REFERENCE MANUAL by Bram Moolenaar | |
5 | |
6 | |
7 Key mapping, abbreviations and user-defined commands. | |
8 | |
9 This subject is introduced in sections |05.3|, |24.7| and |40.1| of the user | |
10 manual. | |
11 | |
12 1. Key mapping |key-mapping| | |
592 | 13 1.1 MAP COMMANDS |:map-commands| |
14 1.2 Special arguments |:map-arguments| | |
15 1.3 Mapping and modes |:map-modes| | |
16 1.4 Listing mappings |map-listing| | |
17 1.5 Mapping special keys |:map-special-keys| | |
18 1.6 Special characters |:map-special-chars| | |
19 1.7 What keys to map |map-which-keys| | |
20 1.8 Examples |map-examples| | |
21 1.9 Using mappings |map-typing| | |
22 1.10 Mapping alt-keys |:map-alt-keys| | |
23 1.11 Mapping an operator |:map-operator| | |
7 | 24 2. Abbreviations |abbreviations| |
25 3. Local mappings and functions |script-local| | |
26 4. User-defined commands |user-commands| | |
27 | |
28 ============================================================================== | |
29 1. Key mapping *key-mapping* *mapping* *macro* | |
30 | |
31 Key mapping is used to change the meaning of typed keys. The most common use | |
32 is to define a sequence commands for a function key. Example: > | |
33 | |
34 :map <F2> a<C-R>=strftime("%c")<CR><Esc> | |
35 | |
236 | 36 This appends the current date and time after the cursor (in <> notation |<>|). |
7 | 37 |
592 | 38 |
39 1.1 MAP COMMANDS *:map-commands* | |
40 | |
7 | 41 There are commands to enter new mappings, remove mappings and list mappings. |
42 See |map-overview| for the various forms of "map" and their relationships with | |
43 modes. | |
44 | |
45 {lhs} means left-hand-side *{lhs}* | |
46 {rhs} means right-hand-side *{rhs}* | |
47 | |
663 | 48 :map {lhs} {rhs} |mapmode-nvo| *:map* |
49 :nm[ap] {lhs} {rhs} |mapmode-n| *:nm* *:nmap* | |
50 :vm[ap] {lhs} {rhs} |mapmode-v| *:vm* *:vmap* | |
788 | 51 :xm[ap] {lhs} {rhs} |mapmode-x| *:xm* *:xmap* |
4358 | 52 :smap {lhs} {rhs} |mapmode-s| *:smap* |
663 | 53 :om[ap] {lhs} {rhs} |mapmode-o| *:om* *:omap* |
54 :map! {lhs} {rhs} |mapmode-ic| *:map!* | |
55 :im[ap] {lhs} {rhs} |mapmode-i| *:im* *:imap* | |
56 :lm[ap] {lhs} {rhs} |mapmode-l| *:lm* *:lmap* | |
57 :cm[ap] {lhs} {rhs} |mapmode-c| *:cm* *:cmap* | |
7 | 58 Map the key sequence {lhs} to {rhs} for the modes |
59 where the map command applies. The result, including | |
60 {rhs}, is then further scanned for mappings. This | |
61 allows for nested and recursive use of mappings. | |
62 | |
5968 | 63 *:nore* *:norem* |
64 :no[remap] {lhs} {rhs} |mapmode-nvo| *:no* *:noremap* *:nor* | |
65 :nn[oremap] {lhs} {rhs} |mapmode-n| *:nn* *:nnoremap* | |
66 :vn[oremap] {lhs} {rhs} |mapmode-v| *:vn* *:vnoremap* | |
67 :xn[oremap] {lhs} {rhs} |mapmode-x| *:xn* *:xnoremap* | |
68 :snor[emap] {lhs} {rhs} |mapmode-s| *:snor* *:snoremap* | |
69 :ono[remap] {lhs} {rhs} |mapmode-o| *:ono* *:onoremap* | |
70 :no[remap]! {lhs} {rhs} |mapmode-ic| *:no!* *:noremap!* | |
71 :ino[remap] {lhs} {rhs} |mapmode-i| *:ino* *:inoremap* | |
72 :ln[oremap] {lhs} {rhs} |mapmode-l| *:ln* *:lnoremap* | |
73 :cno[remap] {lhs} {rhs} |mapmode-c| *:cno* *:cnoremap* | |
7 | 74 Map the key sequence {lhs} to {rhs} for the modes |
75 where the map command applies. Disallow mapping of | |
76 {rhs}, to avoid nested and recursive mappings. Often | |
77 used to redefine a command. {not in Vi} | |
78 | |
79 | |
663 | 80 :unm[ap] {lhs} |mapmode-nvo| *:unm* *:unmap* |
81 :nun[map] {lhs} |mapmode-n| *:nun* *:nunmap* | |
82 :vu[nmap] {lhs} |mapmode-v| *:vu* *:vunmap* | |
788 | 83 :xu[nmap] {lhs} |mapmode-x| *:xu* *:xunmap* |
84 :sunm[ap] {lhs} |mapmode-s| *:sunm* *:sunmap* | |
663 | 85 :ou[nmap] {lhs} |mapmode-o| *:ou* *:ounmap* |
86 :unm[ap]! {lhs} |mapmode-ic| *:unm!* *:unmap!* | |
87 :iu[nmap] {lhs} |mapmode-i| *:iu* *:iunmap* | |
88 :lu[nmap] {lhs} |mapmode-l| *:lu* *:lunmap* | |
89 :cu[nmap] {lhs} |mapmode-c| *:cu* *:cunmap* | |
7 | 90 Remove the mapping of {lhs} for the modes where the |
91 map command applies. The mapping may remain defined | |
92 for other modes where it applies. | |
93 Note: Trailing spaces are included in the {lhs}. This | |
94 unmap does NOT work: > | |
95 :map @@ foo | |
96 :unmap @@ | print | |
97 | |
663 | 98 :mapc[lear] |mapmode-nvo| *:mapc* *:mapclear* |
99 :nmapc[lear] |mapmode-n| *:nmapc* *:nmapclear* | |
100 :vmapc[lear] |mapmode-v| *:vmapc* *:vmapclear* | |
788 | 101 :xmapc[lear] |mapmode-x| *:xmapc* *:xmapclear* |
102 :smapc[lear] |mapmode-s| *:smapc* *:smapclear* | |
663 | 103 :omapc[lear] |mapmode-o| *:omapc* *:omapclear* |
104 :mapc[lear]! |mapmode-ic| *:mapc!* *:mapclear!* | |
105 :imapc[lear] |mapmode-i| *:imapc* *:imapclear* | |
106 :lmapc[lear] |mapmode-l| *:lmapc* *:lmapclear* | |
107 :cmapc[lear] |mapmode-c| *:cmapc* *:cmapclear* | |
7 | 108 Remove ALL mappings for the modes where the map |
109 command applies. {not in Vi} | |
2908 | 110 Use the <buffer> argument to remove buffer-local |
111 mappings |:map-<buffer>| | |
7 | 112 Warning: This also removes the default mappings. |
113 | |
663 | 114 :map |mapmode-nvo| |
115 :nm[ap] |mapmode-n| | |
116 :vm[ap] |mapmode-v| | |
788 | 117 :xm[ap] |mapmode-x| |
118 :sm[ap] |mapmode-s| | |
663 | 119 :om[ap] |mapmode-o| |
120 :map! |mapmode-ic| | |
121 :im[ap] |mapmode-i| | |
122 :lm[ap] |mapmode-l| | |
123 :cm[ap] |mapmode-c| | |
7 | 124 List all key mappings for the modes where the map |
125 command applies. Note that ":map" and ":map!" are | |
126 used most often, because they include the other modes. | |
127 | |
663 | 128 :map {lhs} |mapmode-nvo| *:map_l* |
129 :nm[ap] {lhs} |mapmode-n| *:nmap_l* | |
130 :vm[ap] {lhs} |mapmode-v| *:vmap_l* | |
788 | 131 :xm[ap] {lhs} |mapmode-x| *:xmap_l* |
132 :sm[ap] {lhs} |mapmode-s| *:smap_l* | |
663 | 133 :om[ap] {lhs} |mapmode-o| *:omap_l* |
134 :map! {lhs} |mapmode-ic| *:map_l!* | |
135 :im[ap] {lhs} |mapmode-i| *:imap_l* | |
136 :lm[ap] {lhs} |mapmode-l| *:lmap_l* | |
137 :cm[ap] {lhs} |mapmode-c| *:cmap_l* | |
7 | 138 List the key mappings for the key sequences starting |
139 with {lhs} in the modes where the map command applies. | |
140 {not in Vi} | |
141 | |
142 These commands are used to map a key or key sequence to a string of | |
143 characters. You can use this to put command sequences under function keys, | |
144 translate one key into another, etc. See |:mkexrc| for how to save and | |
145 restore the current mappings. | |
146 | |
592 | 147 *map-ambiguous* |
148 When two mappings start with the same sequence of characters, they are | |
149 ambiguous. Example: > | |
150 :imap aa foo | |
151 :imap aaa bar | |
152 When Vim has read "aa", it will need to get another character to be able to | |
153 decide if "aa" or "aaa" should be mapped. This means that after typing "aa" | |
154 that mapping won't get expanded yet, Vim is waiting for another character. | |
155 If you type a space, then "foo" will get inserted, plus the space. If you | |
156 type "a", then "bar" will get inserted. | |
157 {Vi does not allow ambiguous mappings} | |
158 | |
159 | |
160 1.2 SPECIAL ARGUMENTS *:map-arguments* | |
161 | |
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162 "<buffer>", "<nowait>", "<silent>", "<special>", "<script>", "<expr>" and |
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163 "<unique>" can be used in any order. They must appear right after the |
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164 command, before any other arguments. |
721 | 165 |
7 | 166 *:map-local* *:map-<buffer>* *E224* *E225* |
1668 | 167 If the first argument to one of these commands is "<buffer>" the mapping will |
168 be effective in the current buffer only. Example: > | |
7 | 169 :map <buffer> ,w /[.,;]<CR> |
170 Then you can map ",w" to something else in another buffer: > | |
171 :map <buffer> ,w /[#&!]<CR> | |
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172 The local buffer mappings are used before the global ones. See <nowait> below |
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173 to make a short local mapping not taking effect when a longer global one |
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174 exists. |
7 | 175 The "<buffer>" argument can also be used to clear mappings: > |
176 :unmap <buffer> ,w | |
177 :mapclear <buffer> | |
178 Local mappings are also cleared when a buffer is deleted, but not when it is | |
179 unloaded. Just like local option values. | |
4869 | 180 Also see |map-precedence|. |
7 | 181 |
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182 *:map-<nowait>* *:map-nowait* |
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183 When defining a buffer-local mapping for "," there may be a global mapping |
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184 that starts with ",". Then you need to type another character for Vim to know |
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185 whether to use the "," mapping or the longer one. To avoid this add the |
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186 <nowait> argument. Then the mapping will be used when it matches, Vim does |
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187 not wait for more characters to be typed. However, if the characters were |
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188 already type they are used. |
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189 |
7 | 190 *:map-<silent>* *:map-silent* |
191 To define a mapping which will not be echoed on the command line, add | |
192 "<silent>" as the first argument. Example: > | |
193 :map <silent> ,h /Header<CR> | |
194 The search string will not be echoed when using this mapping. Messages from | |
195 the executed command are still given though. To shut them up too, add a | |
196 ":silent" in the executed command: > | |
197 :map <silent> ,h :exe ":silent normal /Header\r"<CR> | |
198 Prompts will still be given, e.g., for inputdialog(). | |
199 Using "<silent>" for an abbreviation is possible, but will cause redrawing of | |
200 the command line to fail. | |
201 | |
859 | 202 *:map-<special>* *:map-special* |
203 Define a mapping with <> notation for special keys, even though the "<" flag | |
204 may appear in 'cpoptions'. This is useful if the side effect of setting | |
205 'cpoptions' is not desired. Example: > | |
206 :map <special> <F12> /Header<CR> | |
207 < | |
7 | 208 *:map-<script>* *:map-script* |
209 If the first argument to one of these commands is "<script>" and it is used to | |
210 define a new mapping or abbreviation, the mapping will only remap characters | |
211 in the {rhs} using mappings that were defined local to a script, starting with | |
212 "<SID>". This can be used to avoid that mappings from outside a script | |
213 interfere (e.g., when CTRL-V is remapped in mswin.vim), but do use other | |
214 mappings defined in the script. | |
215 Note: ":map <script>" and ":noremap <script>" do the same thing. The | |
216 "<script>" overrules the command name. Using ":noremap <script>" is | |
217 preferred, because it's clearer that remapping is (mostly) disabled. | |
218 | |
219 *:map-<unique>* *E226* *E227* | |
220 If the first argument to one of these commands is "<unique>" and it is used to | |
221 define a new mapping or abbreviation, the command will fail if the mapping or | |
222 abbreviation already exists. Example: > | |
223 :map <unique> ,w /[#&!]<CR> | |
224 When defining a local mapping, there will also be a check if a global map | |
225 already exists which is equal. | |
226 Example of what will fail: > | |
227 :map ,w /[#&!]<CR> | |
228 :map <buffer> <unique> ,w /[.,;]<CR> | |
626 | 229 If you want to map a key and then have it do what it was originally mapped to, |
230 have a look at |maparg()|. | |
7 | 231 |
721 | 232 *:map-<expr>* *:map-expression* |
233 If the first argument to one of these commands is "<expr>" and it is used to | |
234 define a new mapping or abbreviation, the argument is an expression. The | |
235 expression is evaluated to obtain the {rhs} that is used. Example: > | |
236 :inoremap <expr> . InsertDot() | |
237 The result of the InsertDot() function will be inserted. It could check the | |
238 text before the cursor and start omni completion when some condition is met. | |
239 | |
1969 | 240 For abbreviations |v:char| is set to the character that was typed to trigger |
241 the abbreviation. You can use this to decide how to expand the {lhs}. You | |
3082 | 242 should not either insert or change the v:char. |
1969 | 243 |
721 | 244 Be very careful about side effects! The expression is evaluated while |
856 | 245 obtaining characters, you may very well make the command dysfunctional. |
246 For this reason the following is blocked: | |
1132 | 247 - Changing the buffer text |textlock|. |
248 - Editing another buffer. | |
249 - The |:normal| command. | |
250 - Moving the cursor is allowed, but it is restored afterwards. | |
856 | 251 If you want the mapping to do any of these let the returned characters do |
252 that. | |
721 | 253 |
3153 | 254 You can use getchar(), it consumes typeahead if there is any. E.g., if you |
255 have these mappings: > | |
256 inoremap <expr> <C-L> nr2char(getchar()) | |
257 inoremap <expr> <C-L>x "foo" | |
258 If you now type CTRL-L nothing happens yet, Vim needs the next character to | |
259 decide what mapping to use. If you type 'x' the second mapping is used and | |
3224 | 260 "foo" is inserted. If you type any other key the first mapping is used, |
261 getchar() gets the typed key and returns it. | |
3153 | 262 |
721 | 263 Here is an example that inserts a list number that increases: > |
264 let counter = 0 | |
265 inoremap <expr> <C-L> ListItem() | |
266 inoremap <expr> <C-R> ListReset() | |
267 | |
268 func ListItem() | |
269 let g:counter += 1 | |
270 return g:counter . '. ' | |
271 endfunc | |
272 | |
273 func ListReset() | |
274 let g:counter = 0 | |
275 return '' | |
276 endfunc | |
277 | |
727 | 278 CTRL-L inserts the next number, CTRL-R resets the count. CTRL-R returns an |
721 | 279 empty string, so that nothing is inserted. |
7 | 280 |
837 | 281 Note that there are some tricks to make special keys work and escape CSI bytes |
282 in the text. The |:map| command also does this, thus you must avoid that it | |
283 is done twice. This does not work: > | |
284 :imap <expr> <F3> "<Char-0x611B>" | |
285 Because the <Char- sequence is escaped for being a |:imap| argument and then | |
286 again for using <expr>. This does work: > | |
287 :imap <expr> <F3> "\u611B" | |
288 Using 0x80 as a single byte before other text does not work, it will be seen | |
289 as a special key. | |
290 | |
7 | 291 |
592 | 292 1.3 MAPPING AND MODES *:map-modes* |
1619 | 293 *mapmode-nvo* *mapmode-n* *mapmode-v* *mapmode-o* |
7 | 294 |
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295 There are six sets of mappings |
7 | 296 - For Normal mode: When typing commands. |
297 - For Visual mode: When typing commands while the Visual area is highlighted. | |
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298 - For Select mode: like Visual mode but typing text replaces the selection. |
7 | 299 - For Operator-pending mode: When an operator is pending (after "d", "y", "c", |
1619 | 300 etc.). See below: |omap-info|. |
236 | 301 - For Insert mode. These are also used in Replace mode. |
7 | 302 - For Command-line mode: When entering a ":" or "/" command. |
303 | |
304 Special case: While typing a count for a command in Normal mode, mapping zero | |
305 is disabled. This makes it possible to map zero without making it impossible | |
306 to type a count with a zero. | |
307 | |
308 *map-overview* *map-modes* | |
5908 | 309 Overview of which map command works in which mode. More details below. |
310 COMMANDS MODES ~ | |
311 :map :noremap :unmap Normal, Visual, Select, Operator-pending | |
312 :nmap :nnoremap :nunmap Normal | |
313 :vmap :vnoremap :vunmap Visual and Select | |
314 :smap :snoremap :sunmap Select | |
315 :xmap :xnoremap :xunmap Visual | |
316 :omap :onoremap :ounmap Operator-pending | |
317 :map! :noremap! :unmap! Insert and Command-line | |
318 :imap :inoremap :iunmap Insert | |
319 :lmap :lnoremap :lunmap Insert, Command-line, Lang-Arg | |
320 :cmap :cnoremap :cunmap Command-line | |
7 | 321 |
5908 | 322 |
323 COMMANDS MODES ~ | |
856 | 324 Normal Visual+Select Operator-pending ~ |
325 :map :noremap :unmap :mapclear yes yes yes | |
326 :nmap :nnoremap :nunmap :nmapclear yes - - | |
327 :vmap :vnoremap :vunmap :vmapclear - yes - | |
328 :omap :onoremap :ounmap :omapclear - - yes | |
788 | 329 |
826 | 330 :nunmap can also be used outside of a monastery. |
856 | 331 *mapmode-x* *mapmode-s* |
788 | 332 Some commands work both in Visual and Select mode, some in only one. Note |
333 that quite often "Visual" is mentioned where both Visual and Select mode | |
334 apply. |Select-mode-mapping| | |
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335 NOTE: Mapping a printable character in Select mode may confuse the user. It's |
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336 better to explicitly use :xmap and :smap for printable characters. Or use |
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337 :sunmap after defining the mapping. |
788 | 338 |
5908 | 339 COMMANDS MODES ~ |
856 | 340 Visual Select ~ |
341 :vmap :vnoremap :vunmap :vmapclear yes yes | |
342 :xmap :xnoremap :xunmap :xmapclear yes - | |
343 :smap :snoremap :sunmap :smapclear - yes | |
7 | 344 |
663 | 345 *mapmode-ic* *mapmode-i* *mapmode-c* *mapmode-l* |
788 | 346 Some commands work both in Insert mode and Command-line mode, some not: |
347 | |
5908 | 348 COMMANDS MODES ~ |
7 | 349 Insert Command-line Lang-Arg ~ |
350 :map! :noremap! :unmap! :mapclear! yes yes - | |
351 :imap :inoremap :iunmap :imapclear yes - - | |
352 :cmap :cnoremap :cunmap :cmapclear - yes - | |
353 :lmap :lnoremap :lunmap :lmapclear yes* yes* yes* | |
354 | |
355 The original Vi did not have separate mappings for | |
356 Normal/Visual/Operator-pending mode and for Insert/Command-line mode. | |
357 Therefore the ":map" and ":map!" commands enter and display mappings for | |
358 several modes. In Vim you can use the ":nmap", ":vmap", ":omap", ":cmap" and | |
359 ":imap" commands to enter mappings for each mode separately. | |
360 | |
1619 | 361 *omap-info* |
362 Operator-pending mappings can be used to define a movement command that can be | |
363 used with any operator. Simple example: ":omap { w" makes "y{" work like "yw" | |
364 and "d{" like "dw". | |
365 | |
366 To ignore the starting cursor position and select different text, you can have | |
367 the omap start Visual mode to select the text to be operated upon. Example | |
368 that operates on a function name in the current line: > | |
369 onoremap <silent> F :<C-U>normal! 0f(hviw<CR> | |
370 The CTRL-U (<C-U>) is used to remove the range that Vim may insert. The | |
371 Normal mode commands find the first '(' character and select the first word | |
372 before it. That usually is the function name. | |
373 | |
7 | 374 To enter a mapping for Normal and Visual mode, but not Operator-pending mode, |
375 first define it for all three modes, then unmap it for Operator-pending mode: | |
376 :map xx something-difficult | |
377 :ounmap xx | |
378 Likewise for a mapping for Visual and Operator-pending mode or Normal and | |
379 Operator-pending mode. | |
380 | |
381 *language-mapping* | |
382 ":lmap" defines a mapping that applies to: | |
383 - Insert mode | |
384 - Command-line mode | |
385 - when entering a search pattern | |
386 - the argument of the commands that accept a text character, such as "r" and | |
387 "f" | |
388 - for the input() line | |
389 Generally: Whenever a character is to be typed that is part of the text in the | |
390 buffer, not a Vim command character. "Lang-Arg" isn't really another mode, | |
391 it's just used here for this situation. | |
392 The simplest way to load a set of related language mappings is by using the | |
393 'keymap' option. See |45.5|. | |
394 In Insert mode and in Command-line mode the mappings can be disabled with | |
5340 | 395 the CTRL-^ command |i_CTRL-^| |c_CTRL-^|. These commands change the value of |
5294 | 396 the 'iminsert' option. When starting to enter a normal command line (not a |
397 search pattern) the mappings are disabled until a CTRL-^ is typed. The state | |
398 last used is remembered for Insert mode and Search patterns separately. The | |
399 state for Insert mode is also used when typing a character as an argument to | |
400 command like "f" or "t". | |
7 | 401 Language mappings will never be applied to already mapped characters. They |
402 are only used for typed characters. This assumes that the language mapping | |
403 was already done when typing the mapping. | |
404 | |
405 | |
592 | 406 1.4 LISTING MAPPINGS *map-listing* |
407 | |
7 | 408 When listing mappings the characters in the first two columns are: |
409 | |
410 CHAR MODE ~ | |
1132 | 411 <Space> Normal, Visual, Select and Operator-pending |
7 | 412 n Normal |
1132 | 413 v Visual and Select |
414 s Select | |
415 x Visual | |
7 | 416 o Operator-pending |
417 ! Insert and Command-line | |
418 i Insert | |
419 l ":lmap" mappings for Insert, Command-line and Lang-Arg | |
420 c Command-line | |
421 | |
422 Just before the {rhs} a special character can appear: | |
423 * indicates that it is not remappable | |
424 & indicates that only script-local mappings are remappable | |
425 @ indicates a buffer-local mapping | |
426 | |
427 Everything from the first non-blank after {lhs} up to the end of the line | |
428 (or '|') is considered to be part of {rhs}. This allows the {rhs} to end | |
429 with a space. | |
430 | |
431 Note: When using mappings for Visual mode, you can use the "'<" mark, which | |
432 is the start of the last selected Visual area in the current buffer |'<|. | |
433 | |
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434 The |:filter| command can be used to select what mappings to list. The |
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435 pattern is matched against the {lhs} and {rhs} in the raw form. |
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436 |
481 | 437 *:map-verbose* |
438 When 'verbose' is non-zero, listing a key map will also display where it was | |
439 last defined. Example: > | |
440 | |
441 :verbose map <C-W>* | |
442 n <C-W>* * <C-W><C-S>* | |
856 | 443 Last set from /home/abcd/.vimrc |
481 | 444 |
483 | 445 See |:verbose-cmd| for more information. |
481 | 446 |
592 | 447 |
448 1.5 MAPPING SPECIAL KEYS *:map-special-keys* | |
449 | |
450 There are three ways to map a special key: | |
451 1. The Vi-compatible method: Map the key code. Often this is a sequence that | |
452 starts with <Esc>. To enter a mapping like this you type ":map " and then | |
453 you have to type CTRL-V before hitting the function key. Note that when | |
454 the key code for the key is in the termcap (the t_ options), it will | |
455 automatically be translated into the internal code and become the second | |
456 way of mapping (unless the 'k' flag is included in 'cpoptions'). | |
457 2. The second method is to use the internal code for the function key. To | |
458 enter such a mapping type CTRL-K and then hit the function key, or use | |
459 the form "#1", "#2", .. "#9", "#0", "<Up>", "<S-Down>", "<S-F7>", etc. | |
460 (see table of keys |key-notation|, all keys from <Up> can be used). The | |
461 first ten function keys can be defined in two ways: Just the number, like | |
462 "#2", and with "<F>", like "<F2>". Both stand for function key 2. "#0" | |
463 refers to function key 10, defined with option 't_f10', which may be | |
464 function key zero on some keyboards. The <> form cannot be used when | |
465 'cpoptions' includes the '<' flag. | |
466 3. Use the termcap entry, with the form <t_xx>, where "xx" is the name of the | |
467 termcap entry. Any string entry can be used. For example: > | |
468 :map <t_F3> G | |
469 < Maps function key 13 to "G". This does not work if 'cpoptions' includes | |
470 the '<' flag. | |
471 | |
472 The advantage of the second and third method is that the mapping will work on | |
473 different terminals without modification (the function key will be | |
474 translated into the same internal code or the actual key code, no matter what | |
475 terminal you are using. The termcap must be correct for this to work, and you | |
476 must use the same mappings). | |
477 | |
478 DETAIL: Vim first checks if a sequence from the keyboard is mapped. If it | |
479 isn't the terminal key codes are tried (see |terminal-options|). If a | |
480 terminal code is found it is replaced with the internal code. Then the check | |
481 for a mapping is done again (so you can map an internal code to something | |
482 else). What is written into the script file depends on what is recognized. | |
483 If the terminal key code was recognized as a mapping the key code itself is | |
484 written to the script file. If it was recognized as a terminal code the | |
485 internal code is written to the script file. | |
486 | |
487 | |
488 1.6 SPECIAL CHARACTERS *:map-special-chars* | |
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489 *map_backslash* *map-backslash* |
7 | 490 Note that only CTRL-V is mentioned here as a special character for mappings |
491 and abbreviations. When 'cpoptions' does not contain 'B', a backslash can | |
492 also be used like CTRL-V. The <> notation can be fully used then |<>|. But | |
493 you cannot use "<C-V>" like CTRL-V to escape the special meaning of what | |
494 follows. | |
495 | |
496 To map a backslash, or use a backslash literally in the {rhs}, the special | |
497 sequence "<Bslash>" can be used. This avoids the need to double backslashes | |
498 when using nested mappings. | |
499 | |
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500 *map_CTRL-C* *map-CTRL-C* |
532 | 501 Using CTRL-C in the {lhs} is possible, but it will only work when Vim is |
502 waiting for a key, not when Vim is busy with something. When Vim is busy | |
503 CTRL-C interrupts/breaks the command. | |
504 When using the GUI version on MS-Windows CTRL-C can be mapped to allow a Copy | |
505 command to the clipboard. Use CTRL-Break to interrupt Vim. | |
7 | 506 |
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507 *map_space_in_lhs* *map-space_in_lhs* |
7 | 508 To include a space in {lhs} precede it with a CTRL-V (type two CTRL-Vs for |
509 each space). | |
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510 *map_space_in_rhs* *map-space_in_rhs* |
7 | 511 If you want a {rhs} that starts with a space, use "<Space>". To be fully Vi |
512 compatible (but unreadable) don't use the |<>| notation, precede {rhs} with a | |
513 single CTRL-V (you have to type CTRL-V two times). | |
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514 *map_empty_rhs* *map-empty-rhs* |
7 | 515 You can create an empty {rhs} by typing nothing after a single CTRL-V (you |
516 have to type CTRL-V two times). Unfortunately, you cannot do this in a vimrc | |
517 file. | |
518 *<Nop>* | |
2826 | 519 An easier way to get a mapping that doesn't produce anything, is to use |
520 "<Nop>" for the {rhs}. This only works when the |<>| notation is enabled. | |
521 For example, to make sure that function key 8 does nothing at all: > | |
7 | 522 :map <F8> <Nop> |
523 :map! <F8> <Nop> | |
524 < | |
592 | 525 *map-multibyte* |
526 It is possible to map multibyte characters, but only the whole character. You | |
527 cannot map the first byte only. This was done to prevent problems in this | |
528 scenario: > | |
529 :set encoding=latin1 | |
530 :imap <M-C> foo | |
531 :set encoding=utf-8 | |
532 The mapping for <M-C> is defined with the latin1 encoding, resulting in a 0xc3 | |
1619 | 533 byte. If you type the character á (0xe1 <M-a>) in UTF-8 encoding this is the |
2826 | 534 two bytes 0xc3 0xa1. You don't want the 0xc3 byte to be mapped then or |
592 | 535 otherwise it would be impossible to type the á character. |
536 | |
7 | 537 *<Leader>* *mapleader* |
538 To define a mapping which uses the "mapleader" variable, the special string | |
539 "<Leader>" can be used. It is replaced with the string value of "mapleader". | |
540 If "mapleader" is not set or empty, a backslash is used instead. Example: > | |
541 :map <Leader>A oanother line<Esc> | |
542 Works like: > | |
543 :map \A oanother line<Esc> | |
544 But after: > | |
545 :let mapleader = "," | |
546 It works like: > | |
547 :map ,A oanother line<Esc> | |
548 | |
549 Note that the value of "mapleader" is used at the moment the mapping is | |
550 defined. Changing "mapleader" after that has no effect for already defined | |
551 mappings. | |
552 | |
553 *<LocalLeader>* *maplocalleader* | |
1619 | 554 <LocalLeader> is just like <Leader>, except that it uses "maplocalleader" |
555 instead of "mapleader". <LocalLeader> is to be used for mappings which are | |
556 local to a buffer. Example: > | |
3312 | 557 :map <buffer> <LocalLeader>A oanother line<Esc> |
7 | 558 < |
559 In a global plugin <Leader> should be used and in a filetype plugin | |
560 <LocalLeader>. "mapleader" and "maplocalleader" can be equal. Although, if | |
561 you make them different, there is a smaller chance of mappings from global | |
562 plugins to clash with mappings for filetype plugins. For example, you could | |
563 keep "mapleader" at the default backslash, and set "maplocalleader" to an | |
564 underscore. | |
565 | |
566 *map-<SID>* | |
567 In a script the special key name "<SID>" can be used to define a mapping | |
568 that's local to the script. See |<SID>| for details. | |
569 | |
570 *<Plug>* | |
571 The special key name "<Plug>" can be used for an internal mapping, which is | |
572 not to be matched with any key sequence. This is useful in plugins | |
573 |using-<Plug>|. | |
574 | |
575 *<Char>* *<Char->* | |
576 To map a character by its decimal, octal or hexadecimal number the <Char> | |
577 construct can be used: | |
578 <Char-123> character 123 | |
579 <Char-033> character 27 | |
580 <Char-0x7f> character 127 | |
3082 | 581 <S-Char-114> character 114 ('r') shifted ('R') |
7 | 582 This is useful to specify a (multi-byte) character in a 'keymap' file. |
583 Upper and lowercase differences are ignored. | |
584 | |
585 *map-comments* | |
586 It is not possible to put a comment after these commands, because the '"' | |
11160 | 587 character is considered to be part of the {lhs} or {rhs}. However, one can |
588 use |", since this starts a new, empty command with a comment. | |
7 | 589 |
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590 *map_bar* *map-bar* |
7 | 591 Since the '|' character is used to separate a map command from the next |
592 command, you will have to do something special to include a '|' in {rhs}. | |
593 There are three methods: | |
594 use works when example ~ | |
595 <Bar> '<' is not in 'cpoptions' :map _l :!ls <Bar> more^M | |
596 \| 'b' is not in 'cpoptions' :map _l :!ls \| more^M | |
597 ^V| always, in Vim and Vi :map _l :!ls ^V| more^M | |
598 | |
599 (here ^V stands for CTRL-V; to get one CTRL-V you have to type it twice; you | |
600 cannot use the <> notation "<C-V>" here). | |
601 | |
602 All three work when you use the default setting for 'cpoptions'. | |
603 | |
604 When 'b' is present in 'cpoptions', "\|" will be recognized as a mapping | |
605 ending in a '\' and then another command. This is Vi compatible, but | |
606 illogical when compared to other commands. | |
607 | |
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608 *map_return* *map-return* |
7 | 609 When you have a mapping that contains an Ex command, you need to put a line |
610 terminator after it to have it executed. The use of <CR> is recommended for | |
611 this (see |<>|). Example: > | |
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612 :map _ls :!ls -l %:S<CR>:echo "the end"<CR> |
7 | 613 |
614 To avoid mapping of the characters you type in insert or Command-line mode, | |
615 type a CTRL-V first. The mapping in Insert mode is disabled if the 'paste' | |
616 option is on. | |
5239 | 617 *map-error* |
7 | 618 Note that when an error is encountered (that causes an error message or beep) |
619 the rest of the mapping is not executed. This is Vi-compatible. | |
620 | |
621 Note that the second character (argument) of the commands @zZtTfF[]rm'`"v | |
622 and CTRL-X is not mapped. This was done to be able to use all the named | |
623 registers and marks, even when the command with the same name has been | |
624 mapped. | |
625 | |
592 | 626 |
627 1.7 WHAT KEYS TO MAP *map-which-keys* | |
628 | |
7 | 629 If you are going to map something, you will need to choose which key(s) to use |
630 for the {lhs}. You will have to avoid keys that are used for Vim commands, | |
631 otherwise you would not be able to use those commands anymore. Here are a few | |
632 suggestions: | |
633 - Function keys <F2>, <F3>, etc.. Also the shifted function keys <S-F1>, | |
634 <S-F2>, etc. Note that <F1> is already used for the help command. | |
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635 - Meta-keys (with the ALT key pressed). Depending on your keyboard accented |
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636 characters may be used as well. |:map-alt-keys| |
7 | 637 - Use the '_' or ',' character and then any other character. The "_" and "," |
638 commands do exist in Vim (see |_| and |,|), but you probably never use them. | |
639 - Use a key that is a synonym for another command. For example: CTRL-P and | |
640 CTRL-N. Use an extra character to allow more mappings. | |
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641 - The key defined by <Leader> and one or more other keys. This is especially |
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642 useful in scripts. |mapleader| |
7 | 643 |
644 See the file "index" for keys that are not used and thus can be mapped without | |
645 losing any builtin function. You can also use ":help {key}^D" to find out if | |
646 a key is used for some command. ({key} is the specific key you want to find | |
647 out about, ^D is CTRL-D). | |
648 | |
592 | 649 |
650 1.8 EXAMPLES *map-examples* | |
651 | |
7 | 652 A few examples (given as you type them, for "<CR>" you type four characters; |
653 the '<' flag must not be present in 'cpoptions' for this to work). > | |
654 | |
655 :map <F3> o#include | |
656 :map <M-g> /foo<CR>cwbar<Esc> | |
657 :map _x d/END/e<CR> | |
658 :map! qq quadrillion questions | |
1132 | 659 |
660 | |
661 Multiplying a count | |
662 | |
663 When you type a count before triggering a mapping, it's like the count was | |
664 typed before the {lhs}. For example, with this mapping: > | |
665 :map <F4> 3w | |
666 Typing 2<F4> will result in "23w". Thus not moving 2 * 3 words but 23 words. | |
667 If you want to multiply counts use the expression register: > | |
668 :map <F4> @='3w'<CR> | |
669 The part between quotes is the expression being executed. |@=| | |
670 | |
592 | 671 |
672 1.9 USING MAPPINGS *map-typing* | |
673 | |
7 | 674 Vim will compare what you type with the start of a mapped sequence. If there |
675 is an incomplete match, it will get more characters until there either is a | |
676 complete match or until there is no match at all. Example: If you map! "qq", | |
677 the first 'q' will not appear on the screen until you type another | |
678 character. This is because Vim cannot know if the next character will be a | |
679 'q' or not. If the 'timeout' option is on (which is the default) Vim will | |
680 only wait for one second (or as long as specified with the 'timeoutlen' | |
681 option). After that it assumes that the 'q' is to be interpreted as such. If | |
682 you type slowly, or your system is slow, reset the 'timeout' option. Then you | |
683 might want to set the 'ttimeout' option. | |
684 | |
4869 | 685 *map-precedence* |
686 Buffer-local mappings (defined using |:map-<buffer>|) take precedence over | |
687 global mappings. When a buffer-local mapping is the same as a global mapping, | |
688 Vim will use the buffer-local mapping. In addition, Vim will use a complete | |
5055 | 689 mapping immediately if it was defined with <nowait>, even if a longer mapping |
690 has the same prefix. For example, given the following two mappings: > | |
691 :map <buffer> <nowait> \a :echo "Local \a"<CR> | |
692 :map \abc :echo "Global \abc"<CR> | |
693 When typing \a the buffer-local mapping will be used immediately. Vim will | |
694 not wait for more characters to see if the user might be typing \abc. | |
4869 | 695 |
7 | 696 *map-keys-fails* |
588 | 697 There are situations where key codes might not be recognized: |
7 | 698 - Vim can only read part of the key code. Mostly this is only the first |
699 character. This happens on some Unix versions in an xterm. | |
700 - The key code is after character(s) that are mapped. E.g., "<F1><F1>" or | |
701 "g<F1>". | |
588 | 702 |
7 | 703 The result is that the key code is not recognized in this situation, and the |
588 | 704 mapping fails. There are two actions needed to avoid this problem: |
705 | |
7 | 706 - Remove the 'K' flag from 'cpoptions'. This will make Vim wait for the rest |
707 of the characters of the function key. | |
708 - When using <F1> to <F4> the actual key code generated may correspond to | |
709 <xF1> to <xF4>. There are mappings from <xF1> to <F1>, <xF2> to <F2>, etc., | |
710 but these are not recognized after another half a mapping. Make sure the | |
711 key codes for <F1> to <F4> are correct: > | |
712 :set <F1>=<type CTRL-V><type F1> | |
713 < Type the <F1> as four characters. The part after the "=" must be done with | |
714 the actual keys, not the literal text. | |
715 Another solution is to use the actual key code in the mapping for the second | |
716 special key: > | |
717 :map <F1><Esc>OP :echo "yes"<CR> | |
718 Don't type a real <Esc>, Vim will recognize the key code and replace it with | |
719 <F1> anyway. | |
720 | |
588 | 721 Another problem may be that when keeping ALT or Meta pressed the terminal |
722 prepends ESC instead of setting the 8th bit. See |:map-alt-keys|. | |
723 | |
7 | 724 *recursive_mapping* |
725 If you include the {lhs} in the {rhs} you have a recursive mapping. When | |
726 {lhs} is typed, it will be replaced with {rhs}. When the {lhs} which is | |
727 included in {rhs} is encountered it will be replaced with {rhs}, and so on. | |
728 This makes it possible to repeat a command an infinite number of times. The | |
729 only problem is that the only way to stop this is by causing an error. The | |
730 macros to solve a maze uses this, look there for an example. There is one | |
731 exception: If the {rhs} starts with {lhs}, the first character is not mapped | |
732 again (this is Vi compatible). | |
733 For example: > | |
734 :map ab abcd | |
735 will execute the "a" command and insert "bcd" in the text. The "ab" in the | |
736 {rhs} will not be mapped again. | |
737 | |
738 If you want to exchange the meaning of two keys you should use the :noremap | |
739 command. For example: > | |
740 :noremap k j | |
741 :noremap j k | |
742 This will exchange the cursor up and down commands. | |
743 | |
744 With the normal :map command, when the 'remap' option is on, mapping takes | |
745 place until the text is found not to be a part of a {lhs}. For example, if | |
746 you use: > | |
747 :map x y | |
748 :map y x | |
749 Vim will replace x with y, and then y with x, etc. When this has happened | |
750 'maxmapdepth' times (default 1000), Vim will give the error message | |
751 "recursive mapping". | |
752 | |
753 *:map-undo* | |
754 If you include an undo command inside a mapped sequence, this will bring the | |
755 text back in the state before executing the macro. This is compatible with | |
756 the original Vi, as long as there is only one undo command in the mapped | |
757 sequence (having two undo commands in a mapped sequence did not make sense | |
758 in the original Vi, you would get back the text before the first undo). | |
759 | |
760 | |
592 | 761 1.10 MAPPING ALT-KEYS *:map-alt-keys* |
588 | 762 |
763 In the GUI Vim handles the Alt key itself, thus mapping keys with ALT should | |
764 always work. But in a terminal Vim gets a sequence of bytes and has to figure | |
765 out whether ALT was pressed or not. | |
766 | |
767 By default Vim assumes that pressing the ALT key sets the 8th bit of a typed | |
605 | 768 character. Most decent terminals can work that way, such as xterm, aterm and |
588 | 769 rxvt. If your <A-k> mappings don't work it might be that the terminal is |
770 prefixing the character with an ESC character. But you can just as well type | |
771 ESC before a character, thus Vim doesn't know what happened (except for | |
772 checking the delay between characters, which is not reliable). | |
773 | |
774 As of this writing, some mainstream terminals like gnome-terminal and konsole | |
775 use the ESC prefix. There doesn't appear a way to have them use the 8th bit | |
605 | 776 instead. Xterm should work well by default. Aterm and rxvt should work well |
777 when started with the "--meta8" argument. You can also tweak resources like | |
778 "metaSendsEscape", "eightBitInput" and "eightBitOutput". | |
588 | 779 |
780 On the Linux console, this behavior can be toggled with the "setmetamode" | |
781 command. Bear in mind that not using an ESC prefix could get you in trouble | |
782 with other programs. You should make sure that bash has the "convert-meta" | |
783 option set to "on" in order for your Meta keybindings to still work on it | |
784 (it's the default readline behavior, unless changed by specific system | |
785 configuration). For that, you can add the line: > | |
786 | |
787 set convert-meta on | |
788 | |
789 to your ~/.inputrc file. If you're creating the file, you might want to use: > | |
790 | |
791 $include /etc/inputrc | |
792 | |
793 as the first line, if that file exists on your system, to keep global options. | |
794 This may cause a problem for entering special characters, such as the umlaut. | |
795 Then you should use CTRL-V before that character. | |
796 | |
797 Bear in mind that convert-meta has been reported to have troubles when used in | |
798 UTF-8 locales. On terminals like xterm, the "metaSendsEscape" resource can be | |
799 toggled on the fly through the "Main Options" menu, by pressing Ctrl-LeftClick | |
800 on the terminal; that's a good last resource in case you want to send ESC when | |
801 using other applications but not when inside VIM. | |
802 | |
592 | 803 |
804 1.11 MAPPING AN OPERATOR *:map-operator* | |
805 | |
806 An operator is used before a {motion} command. To define your own operator | |
807 you must create mapping that first sets the 'operatorfunc' option and then | |
808 invoke the |g@| operator. After the user types the {motion} command the | |
809 specified function will be called. | |
810 | |
626 | 811 *g@* *E774* *E775* |
592 | 812 g@{motion} Call the function set by the 'operatorfunc' option. |
813 The '[ mark is positioned at the start of the text | |
814 moved over by {motion}, the '] mark on the last | |
815 character of the text. | |
816 The function is called with one String argument: | |
817 "line" {motion} was |linewise| | |
818 "char" {motion} was |characterwise| | |
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819 "block" {motion} was |blockwise-visual| |
592 | 820 Although "block" would rarely appear, since it can |
821 only result from Visual mode where "g@" is not useful. | |
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822 {not available when compiled without the |+eval| |
592 | 823 feature} |
824 | |
825 Here is an example that counts the number of spaces with <F4>: > | |
826 | |
827 nmap <silent> <F4> :set opfunc=CountSpaces<CR>g@ | |
828 vmap <silent> <F4> :<C-U>call CountSpaces(visualmode(), 1)<CR> | |
829 | |
830 function! CountSpaces(type, ...) | |
831 let sel_save = &selection | |
832 let &selection = "inclusive" | |
833 let reg_save = @@ | |
834 | |
5968 | 835 if a:0 " Invoked from Visual mode, use gv command. |
836 silent exe "normal! gvy" | |
592 | 837 elseif a:type == 'line' |
838 silent exe "normal! '[V']y" | |
839 else | |
840 silent exe "normal! `[v`]y" | |
841 endif | |
842 | |
843 echomsg strlen(substitute(@@, '[^ ]', '', 'g')) | |
844 | |
845 let &selection = sel_save | |
846 let @@ = reg_save | |
847 endfunction | |
848 | |
849 Note that the 'selection' option is temporarily set to "inclusive" to be able | |
850 to yank exactly the right text by using Visual mode from the '[ to the '] | |
851 mark. | |
852 | |
853 Also note that there is a separate mapping for Visual mode. It removes the | |
854 "'<,'>" range that ":" inserts in Visual mode and invokes the function with | |
855 visualmode() and an extra argument. | |
856 | |
7 | 857 ============================================================================== |
858 2. Abbreviations *abbreviations* *Abbreviations* | |
859 | |
860 Abbreviations are used in Insert mode, Replace mode and Command-line mode. | |
861 If you enter a word that is an abbreviation, it is replaced with the word it | |
862 stands for. This can be used to save typing for often used long words. And | |
863 you can use it to automatically correct obvious spelling errors. | |
864 Examples: | |
865 | |
1190 | 866 :iab ms Microsoft |
7 | 867 :iab tihs this |
868 | |
869 There are three types of abbreviations: | |
870 | |
871 full-id The "full-id" type consists entirely of keyword characters (letters | |
872 and characters from 'iskeyword' option). This is the most common | |
873 abbreviation. | |
874 | |
875 Examples: "foo", "g3", "-1" | |
876 | |
877 end-id The "end-id" type ends in a keyword character, but all the other | |
878 characters are not keyword characters. | |
879 | |
880 Examples: "#i", "..f", "$/7" | |
881 | |
882 non-id The "non-id" type ends in a non-keyword character, the other | |
1236 | 883 characters may be of any type, excluding space and tab. {this type |
7 | 884 is not supported by Vi} |
885 | |
886 Examples: "def#", "4/7$" | |
887 | |
888 Examples of strings that cannot be abbreviations: "a.b", "#def", "a b", "_$r" | |
889 | |
890 An abbreviation is only recognized when you type a non-keyword character. | |
891 This can also be the <Esc> that ends insert mode or the <CR> that ends a | |
892 command. The non-keyword character which ends the abbreviation is inserted | |
893 after the expanded abbreviation. An exception to this is the character <C-]>, | |
894 which is used to expand an abbreviation without inserting any extra | |
895 characters. | |
896 | |
897 Example: > | |
898 :ab hh hello | |
899 < "hh<Space>" is expanded to "hello<Space>" | |
900 "hh<C-]>" is expanded to "hello" | |
901 | |
902 The characters before the cursor must match the abbreviation. Each type has | |
903 an additional rule: | |
904 | |
905 full-id In front of the match is a non-keyword character, or this is where | |
906 the line or insertion starts. Exception: When the abbreviation is | |
907 only one character, it is not recognized if there is a non-keyword | |
1236 | 908 character in front of it, other than a space or a tab. |
7 | 909 |
1236 | 910 end-id In front of the match is a keyword character, or a space or a tab, |
7 | 911 or this is where the line or insertion starts. |
912 | |
1236 | 913 non-id In front of the match is a space, tab or the start of the line or |
7 | 914 the insertion. |
915 | |
916 Examples: ({CURSOR} is where you type a non-keyword character) > | |
917 :ab foo four old otters | |
918 < " foo{CURSOR}" is expanded to " four old otters" | |
919 " foobar{CURSOR}" is not expanded | |
920 "barfoo{CURSOR}" is not expanded | |
921 > | |
922 :ab #i #include | |
923 < "#i{CURSOR}" is expanded to "#include" | |
924 ">#i{CURSOR}" is not expanded | |
925 > | |
42 | 926 :ab ;; <endofline> |
7 | 927 < "test;;" is not expanded |
928 "test ;;" is expanded to "test <endofline>" | |
929 | |
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930 To avoid the abbreviation in Insert mode: Type CTRL-V before the character |
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931 that would trigger the abbreviation. E.g. CTRL-V <Space>. Or type part of |
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932 the abbreviation, exit insert mode with <Esc>, re-enter insert mode with "a" |
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933 and type the rest. |
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934 |
7 | 935 To avoid the abbreviation in Command-line mode: Type CTRL-V twice somewhere in |
936 the abbreviation to avoid it to be replaced. A CTRL-V in front of a normal | |
937 character is mostly ignored otherwise. | |
938 | |
939 It is possible to move the cursor after an abbreviation: > | |
940 :iab if if ()<Left> | |
941 This does not work if 'cpoptions' includes the '<' flag. |<>| | |
942 | |
943 You can even do more complicated things. For example, to consume the space | |
944 typed after an abbreviation: > | |
945 func Eatchar(pat) | |
685 | 946 let c = nr2char(getchar(0)) |
7 | 947 return (c =~ a:pat) ? '' : c |
948 endfunc | |
949 iabbr <silent> if if ()<Left><C-R>=Eatchar('\s')<CR> | |
950 | |
951 There are no default abbreviations. | |
952 | |
953 Abbreviations are never recursive. You can use ":ab f f-o-o" without any | |
954 problem. But abbreviations can be mapped. {some versions of Vi support | |
955 recursive abbreviations, for no apparent reason} | |
956 | |
957 Abbreviations are disabled if the 'paste' option is on. | |
958 | |
959 *:abbreviate-local* *:abbreviate-<buffer>* | |
960 Just like mappings, abbreviations can be local to a buffer. This is mostly | |
961 used in a |filetype-plugin| file. Example for a C plugin file: > | |
962 :abb <buffer> FF for (i = 0; i < ; ++i) | |
963 < | |
964 *:ab* *:abbreviate* | |
965 :ab[breviate] list all abbreviations. The character in the first | |
966 column indicates the mode where the abbreviation is | |
967 used: 'i' for insert mode, 'c' for Command-line | |
968 mode, '!' for both. These are the same as for | |
969 mappings, see |map-listing|. | |
970 | |
502 | 971 *:abbreviate-verbose* |
972 When 'verbose' is non-zero, listing an abbreviation will also display where it | |
973 was last defined. Example: > | |
974 | |
975 :verbose abbreviate | |
856 | 976 ! teh the |
502 | 977 Last set from /home/abcd/vim/abbr.vim |
978 | |
979 See |:verbose-cmd| for more information. | |
980 | |
7 | 981 :ab[breviate] {lhs} list the abbreviations that start with {lhs} |
982 You may need to insert a CTRL-V (type it twice) to | |
983 avoid that a typed {lhs} is expanded, since | |
984 command-line abbreviations apply here. | |
985 | |
2908 | 986 :ab[breviate] [<expr>] [<buffer>] {lhs} {rhs} |
7 | 987 add abbreviation for {lhs} to {rhs}. If {lhs} already |
988 existed it is replaced with the new {rhs}. {rhs} may | |
989 contain spaces. | |
838 | 990 See |:map-<expr>| for the optional <expr> argument. |
2908 | 991 See |:map-<buffer>| for the optional <buffer> argument. |
7 | 992 |
993 *:una* *:unabbreviate* | |
994 :una[bbreviate] {lhs} Remove abbreviation for {lhs} from the list. If none | |
995 is found, remove abbreviations in which {lhs} matches | |
996 with the {rhs}. This is done so that you can even | |
997 remove abbreviations after expansion. To avoid | |
998 expansion insert a CTRL-V (type it twice). | |
999 | |
1000 *:norea* *:noreabbrev* | |
2908 | 1001 :norea[bbrev] [<expr>] [<buffer>] [lhs] [rhs] |
7 | 1002 same as ":ab", but no remapping for this {rhs} {not |
1003 in Vi} | |
1004 | |
1005 *:ca* *:cabbrev* | |
2908 | 1006 :ca[bbrev] [<expr>] [<buffer>] [lhs] [rhs] |
838 | 1007 same as ":ab", but for Command-line mode only. {not |
7 | 1008 in Vi} |
1009 | |
1010 *:cuna* *:cunabbrev* | |
1011 :cuna[bbrev] {lhs} same as ":una", but for Command-line mode only. {not | |
1012 in Vi} | |
1013 | |
1014 *:cnorea* *:cnoreabbrev* | |
2908 | 1015 :cnorea[bbrev] [<expr>] [<buffer>] [lhs] [rhs] |
7 | 1016 same as ":ab", but for Command-line mode only and no |
1017 remapping for this {rhs} {not in Vi} | |
1018 | |
1019 *:ia* *:iabbrev* | |
2908 | 1020 :ia[bbrev] [<expr>] [<buffer>] [lhs] [rhs] |
838 | 1021 same as ":ab", but for Insert mode only. {not in Vi} |
7 | 1022 |
1023 *:iuna* *:iunabbrev* | |
1024 :iuna[bbrev] {lhs} same as ":una", but for insert mode only. {not in | |
1025 Vi} | |
1026 | |
1027 *:inorea* *:inoreabbrev* | |
2908 | 1028 :inorea[bbrev] [<expr>] [<buffer>] [lhs] [rhs] |
7 | 1029 same as ":ab", but for Insert mode only and no |
1030 remapping for this {rhs} {not in Vi} | |
1031 | |
1032 *:abc* *:abclear* | |
2908 | 1033 :abc[lear] [<buffer>] Remove all abbreviations. {not in Vi} |
7 | 1034 |
1035 *:iabc* *:iabclear* | |
2908 | 1036 :iabc[lear] [<buffer>] Remove all abbreviations for Insert mode. {not in Vi} |
7 | 1037 |
1038 *:cabc* *:cabclear* | |
2908 | 1039 :cabc[lear] [<buffer>] Remove all abbreviations for Command-line mode. {not |
7 | 1040 in Vi} |
1041 | |
1042 *using_CTRL-V* | |
1043 It is possible to use special characters in the rhs of an abbreviation. | |
1044 CTRL-V has to be used to avoid the special meaning of most non printable | |
1045 characters. How many CTRL-Vs need to be typed depends on how you enter the | |
1046 abbreviation. This also applies to mappings. Let's use an example here. | |
1047 | |
1048 Suppose you want to abbreviate "esc" to enter an <Esc> character. When you | |
1049 type the ":ab" command in Vim, you have to enter this: (here ^V is a CTRL-V | |
1050 and ^[ is <Esc>) | |
1051 | |
1052 You type: ab esc ^V^V^V^V^V^[ | |
1053 | |
1054 All keyboard input is subjected to ^V quote interpretation, so | |
1055 the first, third, and fifth ^V characters simply allow the second, | |
1056 and fourth ^Vs, and the ^[, to be entered into the command-line. | |
1057 | |
1058 You see: ab esc ^V^V^[ | |
1059 | |
1060 The command-line contains two actual ^Vs before the ^[. This is | |
1061 how it should appear in your .exrc file, if you choose to go that | |
1062 route. The first ^V is there to quote the second ^V; the :ab | |
1063 command uses ^V as its own quote character, so you can include quoted | |
42 | 1064 whitespace or the | character in the abbreviation. The :ab command |
7 | 1065 doesn't do anything special with the ^[ character, so it doesn't need |
1066 to be quoted. (Although quoting isn't harmful; that's why typing 7 | |
1067 [but not 8!] ^Vs works.) | |
1068 | |
1069 Stored as: esc ^V^[ | |
1070 | |
1071 After parsing, the abbreviation's short form ("esc") and long form | |
1072 (the two characters "^V^[") are stored in the abbreviation table. | |
1073 If you give the :ab command with no arguments, this is how the | |
1074 abbreviation will be displayed. | |
1075 | |
1076 Later, when the abbreviation is expanded because the user typed in | |
1077 the word "esc", the long form is subjected to the same type of | |
1078 ^V interpretation as keyboard input. So the ^V protects the ^[ | |
42 | 1079 character from being interpreted as the "exit Insert mode" character. |
7 | 1080 Instead, the ^[ is inserted into the text. |
1081 | |
1082 Expands to: ^[ | |
1083 | |
1084 [example given by Steve Kirkendall] | |
1085 | |
1086 ============================================================================== | |
1087 3. Local mappings and functions *script-local* | |
1088 | |
1089 When using several Vim script files, there is the danger that mappings and | |
1090 functions used in one script use the same name as in other scripts. To avoid | |
1091 this, they can be made local to the script. | |
1092 | |
1093 *<SID>* *<SNR>* *E81* | |
1094 The string "<SID>" can be used in a mapping or menu. This requires that the | |
1095 '<' flag is not present in 'cpoptions'. | |
1096 When executing the map command, Vim will replace "<SID>" with the special | |
1097 key code <SNR>, followed by a number that's unique for the script, and an | |
1098 underscore. Example: > | |
1099 :map <SID>Add | |
1100 could define a mapping "<SNR>23_Add". | |
1101 | |
1102 When defining a function in a script, "s:" can be prepended to the name to | |
1103 make it local to the script. But when a mapping is executed from outside of | |
1104 the script, it doesn't know in which script the function was defined. To | |
1105 avoid this problem, use "<SID>" instead of "s:". The same translation is done | |
1106 as for mappings. This makes it possible to define a call to the function in | |
42 | 1107 a mapping. |
7 | 1108 |
1109 When a local function is executed, it runs in the context of the script it was | |
1110 defined in. This means that new functions and mappings it defines can also | |
1111 use "s:" or "<SID>" and it will use the same unique number as when the | |
1112 function itself was defined. Also, the "s:var" local script variables can be | |
1113 used. | |
1114 | |
1115 When executing an autocommand or a user command, it will run in the context of | |
1116 the script it was defined in. This makes it possible that the command calls a | |
1117 local function or uses a local mapping. | |
1118 | |
1119 Otherwise, using "<SID>" outside of a script context is an error. | |
1120 | |
1121 If you need to get the script number to use in a complicated script, you can | |
625 | 1122 use this function: > |
1123 function s:SID() | |
1124 return matchstr(expand('<sfile>'), '<SNR>\zs\d\+\ze_SID$') | |
1125 endfun | |
7 | 1126 |
1127 The "<SNR>" will be shown when listing functions and mappings. This is useful | |
1128 to find out what they are defined to. | |
1129 | |
1130 The |:scriptnames| command can be used to see which scripts have been sourced | |
1131 and what their <SNR> number is. | |
1132 | |
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1133 This is all {not in Vi} and {not available when compiled without the |+eval| |
7 | 1134 feature}. |
1135 | |
1136 ============================================================================== | |
1137 4. User-defined commands *user-commands* | |
1138 | |
236 | 1139 It is possible to define your own Ex commands. A user-defined command can act |
7 | 1140 just like a built-in command (it can have a range or arguments, arguments can |
1141 be completed as filenames or buffer names, etc), except that when the command | |
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1142 is executed, it is transformed into a normal Ex command and then executed. |
7 | 1143 |
1144 For starters: See section |40.2| in the user manual. | |
1145 | |
2642 | 1146 *E183* *E841* *user-cmd-ambiguous* |
7 | 1147 All user defined commands must start with an uppercase letter, to avoid |
2642 | 1148 confusion with builtin commands. Exceptions are these builtin commands: |
1149 :Next | |
1150 :X | |
1151 They cannot be used for a user defined command. ":Print" is also an existing | |
1152 command, but it is deprecated and can be overruled. | |
1153 | |
1154 The other characters of the user command can be uppercase letters, lowercase | |
1155 letters or digits. When using digits, note that other commands that take a | |
1156 numeric argument may become ambiguous. For example, the command ":Cc2" could | |
1157 be the user command ":Cc2" without an argument, or the command ":Cc" with | |
1158 argument "2". It is advised to put a space between the command name and the | |
1159 argument to avoid these problems. | |
7 | 1160 |
236 | 1161 When using a user-defined command, the command can be abbreviated. However, if |
1162 an abbreviation is not unique, an error will be issued. Furthermore, a | |
7 | 1163 built-in command will always take precedence. |
1164 | |
1165 Example: > | |
1166 :command Rename ... | |
1167 :command Renumber ... | |
1168 :Rena " Means "Rename" | |
1169 :Renu " Means "Renumber" | |
1170 :Ren " Error - ambiguous | |
1171 :command Paste ... | |
1172 :P " The built-in :Print | |
1173 | |
1174 It is recommended that full names for user-defined commands are used in | |
1175 scripts. | |
1176 | |
1177 :com[mand] *:com* *:command* | |
236 | 1178 List all user-defined commands. When listing commands, |
7 | 1179 the characters in the first two columns are |
1180 ! Command has the -bang attribute | |
1181 " Command has the -register attribute | |
1182 b Command is local to current buffer | |
1183 (see below for details on attributes) | |
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1184 The list can be filtered on command name with |
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1185 |:filter|, e.g., to list all commands with "Pyth" in |
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1186 the name: > |
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1187 filter Pyth command |
7 | 1188 |
1189 :com[mand] {cmd} List the user-defined commands that start with {cmd} | |
1190 | |
482 | 1191 *:command-verbose* |
1192 When 'verbose' is non-zero, listing a command will also display where it was | |
1193 last defined. Example: > | |
1194 | |
1195 :verbose command TOhtml | |
856 | 1196 < Name Args Range Complete Definition ~ |
1197 TOhtml 0 % :call Convert2HTML(<line1>, <line2>) ~ | |
1198 Last set from /usr/share/vim/vim-7.0/plugin/tohtml.vim ~ | |
1199 | |
483 | 1200 See |:verbose-cmd| for more information. |
482 | 1201 |
7 | 1202 *E174* *E182* |
1203 :com[mand][!] [{attr}...] {cmd} {rep} | |
1204 Define a user command. The name of the command is | |
236 | 1205 {cmd} and its replacement text is {rep}. The command's |
1206 attributes (see below) are {attr}. If the command | |
7 | 1207 already exists, an error is reported, unless a ! is |
1208 specified, in which case the command is redefined. | |
1209 | |
1210 :delc[ommand] {cmd} *:delc* *:delcommand* *E184* | |
1211 Delete the user-defined command {cmd}. | |
1212 | |
1213 :comc[lear] *:comc* *:comclear* | |
1214 Delete all user-defined commands. | |
1215 | |
1216 Command attributes | |
1217 | |
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1218 User-defined commands are treated by Vim just like any other Ex commands. They |
236 | 1219 can have arguments, or have a range specified. Arguments are subject to |
1220 completion as filenames, buffers, etc. Exactly how this works depends upon the | |
7 | 1221 command's attributes, which are specified when the command is defined. |
1222 | |
1223 There are a number of attributes, split into four categories: argument | |
236 | 1224 handling, completion behavior, range handling, and special cases. The |
7 | 1225 attributes are described below, by category. |
1226 | |
1132 | 1227 Argument handling *E175* *E176* *:command-nargs* |
7 | 1228 |
1229 By default, a user defined command will take no arguments (and an error is | |
236 | 1230 reported if any are supplied). However, it is possible to specify that the |
1231 command can take arguments, using the -nargs attribute. Valid cases are: | |
7 | 1232 |
1233 -nargs=0 No arguments are allowed (the default) | |
3465 | 1234 -nargs=1 Exactly one argument is required, it includes spaces |
2826 | 1235 -nargs=* Any number of arguments are allowed (0, 1, or many), |
1236 separated by white space | |
7 | 1237 -nargs=? 0 or 1 arguments are allowed |
1238 -nargs=+ Arguments must be supplied, but any number are allowed | |
1239 | |
1236 | 1240 Arguments are considered to be separated by (unescaped) spaces or tabs in this |
2826 | 1241 context, except when there is one argument, then the white space is part of |
1242 the argument. | |
7 | 1243 |
1244 Note that arguments are used as text, not as expressions. Specifically, | |
1245 "s:var" will use the script-local variable in the script where the command was | |
1246 defined, not where it is invoked! Example: | |
1247 script1.vim: > | |
1248 :let s:error = "None" | |
1249 :command -nargs=1 Error echoerr <args> | |
1250 < script2.vim: > | |
1251 :source script1.vim | |
1252 :let s:error = "Wrong!" | |
1253 :Error s:error | |
1619 | 1254 Executing script2.vim will result in "None" being echoed. Not what you |
7 | 1255 intended! Calling a function may be an alternative. |
1256 | |
1132 | 1257 Completion behavior *:command-completion* *E179* |
1258 *E180* *E181* *:command-complete* | |
7 | 1259 By default, the arguments of user defined commands do not undergo completion. |
1260 However, by specifying one or the other of the following attributes, argument | |
1261 completion can be enabled: | |
1262 | |
1263 -complete=augroup autocmd groups | |
1264 -complete=buffer buffer names | |
3503 | 1265 -complete=behave :behave suboptions |
2970 | 1266 -complete=color color schemes |
7 | 1267 -complete=command Ex command (and arguments) |
2970 | 1268 -complete=compiler compilers |
2596 | 1269 -complete=cscope |:cscope| suboptions |
7 | 1270 -complete=dir directory names |
1271 -complete=environment environment variable names | |
1272 -complete=event autocommand events | |
1273 -complete=expression Vim expression | |
1274 -complete=file file and directory names | |
2970 | 1275 -complete=file_in_path file and directory names in |'path'| |
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1276 -complete=filetype filetype names |'filetype'| |
7 | 1277 -complete=function function name |
1278 -complete=help help subjects | |
1279 -complete=highlight highlight groups | |
3503 | 1280 -complete=history :history suboptions |
2970 | 1281 -complete=locale locale names (as output of locale -a) |
7 | 1282 -complete=mapping mapping name |
1283 -complete=menu menus | |
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1284 -complete=messages |:messages| suboptions |
7 | 1285 -complete=option options |
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1286 -complete=packadd optional package |pack-add| names |
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1287 -complete=shellcmd Shell command |
2596 | 1288 -complete=sign |:sign| suboptions |
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1289 -complete=syntax syntax file names |'syntax'| |
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1290 -complete=syntime |:syntime| suboptions |
7 | 1291 -complete=tag tags |
1292 -complete=tag_listfiles tags, file names are shown when CTRL-D is hit | |
3744 | 1293 -complete=user user names |
7 | 1294 -complete=var user variables |
1295 -complete=custom,{func} custom completion, defined via {func} | |
406 | 1296 -complete=customlist,{func} custom completion, defined via {func} |
7 | 1297 |
6259 | 1298 Note: That some completion methods might expand environment variables. |
1299 | |
557 | 1300 |
1301 Custom completion *:command-completion-custom* | |
1302 *:command-completion-customlist* | |
1303 *E467* *E468* | |
7 | 1304 It is possible to define customized completion schemes via the "custom,{func}" |
406 | 1305 or the "customlist,{func}" completion argument. The {func} part should be a |
1619 | 1306 function with the following signature: > |
7 | 1307 |
1308 :function {func}(ArgLead, CmdLine, CursorPos) | |
1309 | |
406 | 1310 The function need not use all these arguments. The function should provide the |
1311 completion candidates as the return value. | |
1312 | |
1313 For the "custom" argument, the function should return the completion | |
1314 candidates one per line in a newline separated string. | |
1315 | |
1316 For the "customlist" argument, the function should return the completion | |
557 | 1317 candidates as a Vim List. Non-string items in the list are ignored. |
406 | 1318 |
1319 The function arguments are: | |
7 | 1320 ArgLead the leading portion of the argument currently being |
1321 completed on | |
1322 CmdLine the entire command line | |
557 | 1323 CursorPos the cursor position in it (byte index) |
406 | 1324 The function may use these for determining context. For the "custom" |
1325 argument, it is not necessary to filter candidates against the (implicit | |
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1326 pattern in) ArgLead. Vim will filter the candidates with its regexp engine |
406 | 1327 after function return, and this is probably more efficient in most cases. For |
1328 the "customlist" argument, Vim will not filter the returned completion | |
1329 candidates and the user supplied function should filter the candidates. | |
7 | 1330 |
1331 The following example lists user names to a Finger command > | |
1332 :com -complete=custom,ListUsers -nargs=1 Finger !finger <args> | |
1333 :fun ListUsers(A,L,P) | |
1334 : return system("cut -d: -f1 /etc/passwd") | |
1335 :endfun | |
1336 | |
406 | 1337 The following example completes filenames from the directories specified in |
1338 the 'path' option: > | |
1339 :com -nargs=1 -bang -complete=customlist,EditFileComplete | |
1340 \ EditFile edit<bang> <args> | |
1341 :fun EditFileComplete(A,L,P) | |
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1342 : return split(globpath(&path, a:A), "\n") |
406 | 1343 :endfun |
1344 < | |
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1345 This example does not work for file names with spaces! |
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1346 |
557 | 1347 |
1132 | 1348 Range handling *E177* *E178* *:command-range* |
1349 *:command-count* | |
236 | 1350 By default, user-defined commands do not accept a line number range. However, |
7 | 1351 it is possible to specify that the command does take a range (the -range |
1352 attribute), or that it takes an arbitrary count value, either in the line | |
1353 number position (-range=N, like the |:split| command) or as a "count" | |
1132 | 1354 argument (-count=N, like the |:Next| command). The count will then be |
1355 available in the argument with |<count>|. | |
1356 | |
1357 Possible attributes are: | |
7 | 1358 |
1359 -range Range allowed, default is current line | |
1360 -range=% Range allowed, default is whole file (1,$) | |
1361 -range=N A count (default N) which is specified in the line | |
2788 | 1362 number position (like |:split|); allows for zero line |
1363 number. | |
7 | 1364 -count=N A count (default N) which is specified either in the line |
171 | 1365 number position, or as an initial argument (like |:Next|). |
7 | 1366 Specifying -count (without a default) acts like -count=0 |
1367 | |
1368 Note that -range=N and -count=N are mutually exclusive - only one should be | |
1369 specified. | |
1370 | |
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1371 *:command-addr* |
6424 | 1372 It is possible that the special characters in the range like ., $ or % which |
1373 by default correspond to the current line, last line and the whole buffer, | |
1374 relate to arguments, (loaded) buffers, windows or tab pages. | |
1375 | |
1376 Possible values are: | |
1377 -addr=lines Range of lines (this is the default) | |
1378 -addr=arguments Range for arguments | |
1379 -addr=buffers Range for buffers (also not loaded buffers) | |
1380 -addr=loaded_buffers Range for loaded buffers | |
1381 -addr=windows Range for windows | |
1382 -addr=tabs Range for tab pages | |
1383 | |
1132 | 1384 Special cases *:command-bang* *:command-bar* |
1385 *:command-register* *:command-buffer* | |
7 | 1386 There are some special cases as well: |
1387 | |
1388 -bang The command can take a ! modifier (like :q or :w) | |
1389 -bar The command can be followed by a "|" and another command. | |
1390 A "|" inside the command argument is not allowed then. | |
1391 Also checks for a " to start a comment. | |
1392 -register The first argument to the command can be an optional | |
1393 register name (like :del, :put, :yank). | |
1394 -buffer The command will only be available in the current buffer. | |
1395 | |
1396 In the cases of the -count and -register attributes, if the optional argument | |
1397 is supplied, it is removed from the argument list and is available to the | |
1398 replacement text separately. | |
5340 | 1399 Note that these arguments can be abbreviated, but that is a deprecated |
1400 feature. Use the full name for new scripts. | |
7 | 1401 |
1402 Replacement text | |
1403 | |
1404 The replacement text for a user defined command is scanned for special escape | |
236 | 1405 sequences, using <...> notation. Escape sequences are replaced with values |
1406 from the entered command line, and all other text is copied unchanged. The | |
788 | 1407 resulting string is executed as an Ex command. To avoid the replacement use |
1702 | 1408 <lt> in place of the initial <. Thus to include "<bang>" literally use |
788 | 1409 "<lt>bang>". |
7 | 1410 |
1411 The valid escape sequences are | |
1412 | |
1413 *<line1>* | |
1414 <line1> The starting line of the command range. | |
1415 *<line2>* | |
1416 <line2> The final line of the command range. | |
1417 *<count>* | |
1418 <count> Any count supplied (as described for the '-range' | |
1419 and '-count' attributes). | |
1420 *<bang>* | |
1421 <bang> (See the '-bang' attribute) Expands to a ! if the | |
1422 command was executed with a ! modifier, otherwise | |
1423 expands to nothing. | |
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1424 *<mods>* |
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1425 <mods> The command modifiers, if specified. Otherwise, expands to |
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1426 nothing. Supported modifiers are |:aboveleft|, |:belowright|, |
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1427 |:botright|, |:browse|, |:confirm|, |:hide|, |:keepalt|, |
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1428 |:keepjumps|, |:keepmarks|, |:keeppatterns|, |:leftabove|, |
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1429 |:lockmarks|, |:noswapfile| |:rightbelow|, |:silent|, |:tab|, |
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1430 |:topleft|, |:verbose|, and |:vertical|. |
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1431 Note that these are not yet supported: |:noautocmd|, |
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1432 |:sandbox| and |:unsilent|. |
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1433 Examples: > |
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1434 command! -nargs=+ -complete=file MyEdit |
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1435 \ for f in expand(<q-args>, 0, 1) | |
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1436 \ exe '<mods> split ' . f | |
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1437 \ endfor |
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1438 |
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1439 function! SpecialEdit(files, mods) |
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1440 for f in expand(a:files, 0, 1) |
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1441 exe a:mods . ' split ' . f |
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1442 endfor |
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1443 endfunction |
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1444 command! -nargs=+ -complete=file Sedit |
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1445 \ call SpecialEdit(<q-args>, <q-mods>) |
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1446 < |
7 | 1447 *<reg>* *<register>* |
1448 <reg> (See the '-register' attribute) The optional register, | |
236 | 1449 if specified. Otherwise, expands to nothing. <register> |
7 | 1450 is a synonym for this. |
1451 *<args>* | |
1452 <args> The command arguments, exactly as supplied (but as | |
1453 noted above, any count or register can consume some | |
1454 of the arguments, which are then not part of <args>). | |
1455 <lt> A single '<' (Less-Than) character. This is needed if you | |
1456 want to get a literal copy of one of these escape sequences | |
1457 into the expansion - for example, to get <bang>, use | |
1458 <lt>bang>. | |
1459 | |
1460 *<q-args>* | |
1461 If the first two characters of an escape sequence are "q-" (for example, | |
1462 <q-args>) then the value is quoted in such a way as to make it a valid value | |
1463 for use in an expression. This uses the argument as one single value. | |
300 | 1464 When there is no argument <q-args> is an empty string. |
1088 | 1465 *<f-args>* |
7 | 1466 To allow commands to pass their arguments on to a user-defined function, there |
236 | 1467 is a special form <f-args> ("function args"). This splits the command |
1236 | 1468 arguments at spaces and tabs, quotes each argument individually, and the |
7 | 1469 <f-args> sequence is replaced by the comma-separated list of quoted arguments. |
856 | 1470 See the Mycmd example below. If no arguments are given <f-args> is removed. |
1088 | 1471 To embed whitespace into an argument of <f-args>, prepend a backslash. |
1472 <f-args> replaces every pair of backslashes (\\) with one backslash. A | |
1473 backslash followed by a character other than white space or a backslash | |
1474 remains unmodified. Overview: | |
1475 | |
1476 command <f-args> ~ | |
1477 XX ab 'ab' | |
1478 XX a\b 'a\b' | |
1479 XX a\ b 'a b' | |
1480 XX a\ b 'a ', 'b' | |
1481 XX a\\b 'a\b' | |
1482 XX a\\ b 'a\', 'b' | |
1483 XX a\\\b 'a\\b' | |
1484 XX a\\\ b 'a\ b' | |
1485 XX a\\\\b 'a\\b' | |
1486 XX a\\\\ b 'a\\', 'b' | |
7 | 1487 |
1488 Examples > | |
1489 | |
1490 " Delete everything after here to the end | |
1491 :com Ddel +,$d | |
1492 | |
1493 " Rename the current buffer | |
1494 :com -nargs=1 -bang -complete=file Ren f <args>|w<bang> | |
1495 | |
1496 " Replace a range with the contents of a file | |
1497 " (Enter this all as one line) | |
1498 :com -range -nargs=1 -complete=file | |
1499 Replace <line1>-pu_|<line1>,<line2>d|r <args>|<line1>d | |
1500 | |
1501 " Count the number of lines in the range | |
42 | 1502 :com! -range -nargs=0 Lines echo <line2> - <line1> + 1 "lines" |
7 | 1503 |
1504 " Call a user function (example of <f-args>) | |
1505 :com -nargs=* Mycmd call Myfunc(<f-args>) | |
1506 | |
1507 When executed as: > | |
1508 :Mycmd arg1 arg2 | |
1509 This will invoke: > | |
1510 :call Myfunc("arg1","arg2") | |
1511 | |
1512 :" A more substantial example | |
1513 :function Allargs(command) | |
1619 | 1514 : let i = 0 |
1515 : while i < argc() | |
1516 : if filereadable(argv(i)) | |
1517 : execute "e " . argv(i) | |
7 | 1518 : execute a:command |
1519 : endif | |
1520 : let i = i + 1 | |
1521 : endwhile | |
1522 :endfunction | |
1523 :command -nargs=+ -complete=command Allargs call Allargs(<q-args>) | |
1524 | |
1525 The command Allargs takes any Vim command(s) as argument and executes it on all | |
1526 files in the argument list. Usage example (note use of the "e" flag to ignore | |
1527 errors and the "update" command to write modified buffers): > | |
1528 :Allargs %s/foo/bar/ge|update | |
1529 This will invoke: > | |
1530 :call Allargs("%s/foo/bar/ge|update") | |
1531 < | |
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1532 When defining a user command in a script, it will be able to call functions |
7 | 1533 local to the script and use mappings local to the script. When the user |
1534 invokes the user command, it will run in the context of the script it was | |
1535 defined in. This matters if |<SID>| is used in a command. | |
1536 | |
1537 vim:tw=78:ts=8:ft=help:norl: |