Mercurial > vim
annotate runtime/doc/tabpage.txt @ 15508:69207f77754a v8.1.0762
patch 8.1.0762: compiler warning
commit https://github.com/vim/vim/commit/e40742526e6ea272c64ca393d7364e4023f4122c
Author: Bram Moolenaar <Bram@vim.org>
Date: Thu Jan 17 14:31:14 2019 +0100
patch 8.1.0762: compiler warning
Problem: Compiler warning.
Solution: Add type cast. (Mike Williams)
author | Bram Moolenaar <Bram@vim.org> |
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date | Thu, 17 Jan 2019 14:45:11 +0100 |
parents | 0ecb909e3249 |
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13963 | 1 *tabpage.txt* For Vim version 8.1. Last change: 2018 Mar 29 |
674 | 2 |
3 | |
4 VIM REFERENCE MANUAL by Bram Moolenaar | |
5 | |
6 | |
675 | 7 Editing with windows in multiple tab pages. *tab-page* *tabpage* |
674 | 8 |
9 The commands which have been added to use multiple tab pages are explained | |
10 here. Additionally, there are explanations for commands that work differently | |
11 when used in combination with more than one tab page. | |
12 | |
678 | 13 1. Introduction |tab-page-intro| |
14 2. Commands |tab-page-commands| | |
15 3. Other items |tab-page-other| | |
16 4. Setting 'tabline' |setting-tabline| | |
686 | 17 5. Setting 'guitablabel' |setting-guitablabel| |
674 | 18 |
19 {Vi does not have any of these commands} | |
20 {not able to use multiple tab pages when the |+windows| feature was disabled | |
21 at compile time} | |
22 | |
23 ============================================================================== | |
24 1. Introduction *tab-page-intro* | |
25 | |
26 A tab page holds one or more windows. You can easily switch between tab | |
27 pages, so that you have several collections of windows to work on different | |
28 things. | |
29 | |
30 Usually you will see a list of labels at the top of the Vim window, one for | |
31 each tab page. With the mouse you can click on the label to jump to that tab | |
32 page. There are other ways to move between tab pages, see below. | |
33 | |
34 Most commands work only in the current tab page. That includes the |CTRL-W| | |
698 | 35 commands, |:windo|, |:all| and |:ball| (when not using the |:tab| modifier). |
36 The commands that are aware of other tab pages than the current one are | |
37 mentioned below. | |
674 | 38 |
39 Tabs are also a nice way to edit a buffer temporarily without changing the | |
40 current window layout. Open a new tab page, do whatever you want to do and | |
41 close the tab page. | |
42 | |
43 ============================================================================== | |
44 2. Commands *tab-page-commands* | |
45 | |
46 OPENING A NEW TAB PAGE: | |
47 | |
48 When starting Vim "vim -p filename ..." opens each file argument in a separate | |
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49 tab page (up to 'tabpagemax'). See |-p| |
674 | 50 |
706 | 51 A double click with the mouse in the non-GUI tab pages line opens a new, empty |
52 tab page. It is placed left of the position of the click. The first click | |
53 may select another tab page first, causing an extra screen update. | |
54 | |
844 | 55 This also works in a few GUI versions, esp. Win32 and Motif. But only when |
56 clicking right of the labels. | |
57 | |
706 | 58 In the GUI tab pages line you can use the right mouse button to open menu. |
59 |tabline-menu|. | |
682 | 60 |
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61 For the related autocommands see |tabnew-autocmd|. |
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62 |
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63 :[count]tabe[dit] *:tabe* *:tabedit* *:tabnew* |
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64 :[count]tabnew |
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65 Open a new tab page with an empty window, after the current |
6398 | 66 tab page. If [count] is given the new tab page appears after |
67 the tab page [count] otherwise the new tab page will appear | |
68 after the current one. > | |
69 :tabnew " opens tabpage after the current one | |
70 :.tabnew " as above | |
71 :+tabnew " opens tabpage after the next tab page | |
72 " note: it is one further than :tabnew | |
73 :-tabnew " opens tabpage before the current one | |
74 :0tabnew " opens tabpage before the first one | |
75 :$tabnew " opens tabpage after the last one | |
674 | 76 |
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77 :[count]tabe[dit] [++opt] [+cmd] {file} |
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78 :[count]tabnew [++opt] [+cmd] {file} |
674 | 79 Open a new tab page and edit {file}, like with |:edit|. |
6398 | 80 For [count] see |:tabnew| above. |
674 | 81 |
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82 :[count]tabf[ind] [++opt] [+cmd] {file} *:tabf* *:tabfind* |
674 | 83 Open a new tab page and edit {file} in 'path', like with |
6398 | 84 |:find|. For [count] see |:tabnew| above. |
674 | 85 {not available when the |+file_in_path| feature was disabled |
86 at compile time} | |
87 | |
682 | 88 :[count]tab {cmd} *:tab* |
89 Execute {cmd} and when it opens a new window open a new tab | |
1118 | 90 page instead. Doesn't work for |:diffsplit|, |:diffpatch|, |
91 |:execute| and |:normal|. | |
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92 If [count] is given the new tab page appears after the tab |
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93 page [count] otherwise the new tab page will appear after the |
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94 current one. |
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95 Examples: > |
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96 :tab split " opens current buffer in new tab page |
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97 :tab help gt " opens tab page with help for "gt" |
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98 :.tab help gt " as above |
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99 :+tab help " opens tab page with help after the next |
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100 " tab page |
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101 :-tab help " opens tab page with help before the |
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102 " current one |
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103 :0tab help " opens tab page with help before the |
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104 " first one |
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105 :$tab help " opens tab page with help after the last |
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106 " one |
682 | 107 |
820 | 108 CTRL-W gf Open a new tab page and edit the file name under the cursor. |
109 See |CTRL-W_gf|. | |
110 | |
839 | 111 CTRL-W gF Open a new tab page and edit the file name under the cursor |
112 and jump to the line number following the file name. | |
113 See |CTRL-W_gF|. | |
674 | 114 |
115 CLOSING A TAB PAGE: | |
116 | |
682 | 117 Closing the last window of a tab page closes the tab page too, unless there is |
118 only one tab page. | |
674 | 119 |
120 Using the mouse: If the tab page line is displayed you can click in the "X" at | |
682 | 121 the top right to close the current tab page. A custom |'tabline'| may show |
122 something else. | |
674 | 123 |
124 *:tabc* *:tabclose* | |
125 :tabc[lose][!] Close current tab page. | |
126 This command fails when: | |
127 - There is only one tab page on the screen. *E784* | |
128 - When 'hidden' is not set, [!] is not used, a buffer has | |
129 changes, and there is no other window on this buffer. | |
130 Changes to the buffer are not written and won't get lost, so | |
6398 | 131 this is a "safe" command. > |
132 :tabclose " close the current tab page | |
674 | 133 |
6398 | 134 :{count}tabc[lose][!] |
674 | 135 :tabc[lose][!] {count} |
3750 | 136 Close tab page {count}. Fails in the same way as `:tabclose` |
6398 | 137 above. > |
138 :-tabclose " close the previous tab page | |
139 :+tabclose " close the next tab page | |
140 :1tabclose " close the first tab page | |
141 :$tabclose " close the last tab page | |
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142 :tabclose -2 " close the two previous tab page |
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143 :tabclose + " close the next tab page |
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144 :tabclose 3 " close the third tab page |
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145 :tabclose $ " close the last tab page |
6398 | 146 < |
674 | 147 *:tabo* *:tabonly* |
148 :tabo[nly][!] Close all other tab pages. | |
149 When the 'hidden' option is set, all buffers in closed windows | |
150 become hidden. | |
151 When 'hidden' is not set, and the 'autowrite' option is set, | |
152 modified buffers are written. Otherwise, windows that have | |
153 buffers that are modified are not removed, unless the [!] is | |
154 given, then they become hidden. But modified buffers are | |
6398 | 155 never abandoned, so changes cannot get lost. > |
156 :tabonly " close all tab pages except the current | |
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157 " one |
6398 | 158 |
159 :{count}tabo[nly][!] | |
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160 :tabo[nly][!] {count} |
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161 Close all tab pages except {count} one. > |
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162 :.tabonly " as above |
6398 | 163 :-tabonly " close all tab pages except the previous |
164 " one | |
165 :+tabonly " close all tab pages except the next one | |
166 :1tabonly " close all tab pages except the first one | |
167 :$tabonly " close all tab pages except the last one | |
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168 :tabonly - " close all tab pages except the previous |
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169 " one |
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170 :tabonly +2 " close all tab pages except the two next |
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171 " one |
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172 :tabonly 1 " close all tab pages except the first one |
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173 :tabonly $ " close all tab pages except the last one |
674 | 174 |
175 | |
176 SWITCHING TO ANOTHER TAB PAGE: | |
177 | |
178 Using the mouse: If the tab page line is displayed you can click in a tab page | |
682 | 179 label to switch to that tab page. Click where there is no label to go to the |
180 next tab page. |'tabline'| | |
674 | 181 |
819 | 182 :tabn[ext] *:tabn* *:tabnext* *gt* |
1118 | 183 <C-PageDown> *CTRL-<PageDown>* *<C-PageDown>* |
184 gt *i_CTRL-<PageDown>* *i_<C-PageDown>* | |
828 | 185 Go to the next tab page. Wraps around from the last to the |
674 | 186 first one. |
187 | |
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188 :{count}tabn[ext] |
1118 | 189 :tabn[ext] {count} |
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190 Go to tab page {count}. The first tab page has number one. > |
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191 :-tabnext " go to the previous tab page |
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192 :+tabnext " go to the next tab page |
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193 :+2tabnext " go to the two next tab page |
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194 :1tabnext " go to the first tab page |
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195 :$tabnext " go to the last tab page |
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196 :tabnext $ " as above |
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197 :tabnext - " go to the previous tab page |
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198 :tabnext -1 " as above |
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199 :tabnext + " go to the next tab page |
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200 :tabnext +1 " as above |
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201 |
1118 | 202 {count}<C-PageDown> |
203 {count}gt Go to tab page {count}. The first tab page has number one. | |
674 | 204 |
205 | |
1118 | 206 :tabp[revious] *:tabp* *:tabprevious* *gT* *:tabN* |
207 :tabN[ext] *:tabNext* *CTRL-<PageUp>* | |
208 <C-PageUp> *<C-PageUp>* *i_CTRL-<PageUp>* *i_<C-PageUp>* | |
682 | 209 gT Go to the previous tab page. Wraps around from the first one |
210 to the last one. | |
211 | |
212 :tabp[revious] {count} | |
213 :tabN[ext] {count} | |
1118 | 214 {count}<C-PageUp> |
682 | 215 {count}gT Go {count} tab pages back. Wraps around from the first one |
14006 | 216 to the last one. Note that the use of {count} is different |
217 from |:tabnext|, where it is used as the tab page number. | |
682 | 218 |
685 | 219 :tabr[ewind] *:tabfir* *:tabfirst* *:tabr* *:tabrewind* |
686 | 220 :tabfir[st] Go to the first tab page. |
685 | 221 |
222 *:tabl* *:tablast* | |
223 :tabl[ast] Go to the last tab page. | |
224 | |
682 | 225 |
674 | 226 Other commands: |
227 *:tabs* | |
682 | 228 :tabs List the tab pages and the windows they contain. |
229 Shows a ">" for the current window. | |
230 Shows a "+" for modified buffers. | |
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231 For example: |
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232 Tab page 1 ~ |
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233 + tabpage.txt ~ |
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234 ex_docmd.c ~ |
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235 Tab page 2 ~ |
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236 > main.c ~ |
682 | 237 |
238 | |
239 REORDERING TAB PAGES: | |
240 | |
843 | 241 :tabm[ove] [N] *:tabm* *:tabmove* |
3662 | 242 :[N]tabm[ove] |
843 | 243 Move the current tab page to after tab page N. Use zero to |
14519 | 244 make the current tab page the first one. N is counted before |
245 the move, thus if the second tab is the current one, | |
14637 | 246 `:tabmove 1` and `:tabmove 2` have no effect. |
14519 | 247 Without N the tab page is made the last one. > |
6775 | 248 :.tabmove " do nothing |
6398 | 249 :-tabmove " move the tab page to the left |
6775 | 250 :+tabmove " move the tab page to the right |
6474 | 251 :0tabmove " move the tab page to the beginning of the tab |
6398 | 252 " list |
6775 | 253 :tabmove 0 " as above |
254 :tabmove " move the tab page to the last | |
255 :$tabmove " as above | |
256 :tabmove $ " as above | |
674 | 257 |
3662 | 258 :tabm[ove] +[N] |
259 :tabm[ove] -[N] | |
260 Move the current tab page N places to the right (with +) or to | |
6775 | 261 the left (with -). > |
262 :tabmove - " move the tab page to the left | |
263 :tabmove -1 " as above | |
264 :tabmove + " move the tab page to the right | |
265 :tabmove +1 " as above | |
266 | |
3662 | 267 |
268 Note that although it is possible to move a tab behind the N-th one by using | |
6775 | 269 :Ntabmove. And move it by N places by using :+Ntabmove. For clarification what |
270 +N means in this context see |[range]|. | |
3662 | 271 |
685 | 272 |
273 LOOPING OVER TAB PAGES: | |
274 | |
275 *:tabd* *:tabdo* | |
6474 | 276 :[range]tabd[o] {cmd} |
277 Execute {cmd} in each tab page or if [range] is given only in | |
278 tab pages which tab page number is in the [range]. It works | |
279 like doing this: > | |
685 | 280 :tabfirst |
281 :{cmd} | |
282 :tabnext | |
283 :{cmd} | |
284 etc. | |
285 < This only operates in the current window of each tab page. | |
286 When an error is detected on one tab page, further tab pages | |
287 will not be visited. | |
288 The last tab page (or where an error occurred) becomes the | |
289 current tab page. | |
290 {cmd} can contain '|' to concatenate several commands. | |
291 {cmd} must not open or close tab pages or reorder them. | |
13563 | 292 {not in Vi} |
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293 Also see |:windo|, |:argdo|, |:bufdo|, |:cdo|, |:ldo|, |:cfdo| |
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294 and |:lfdo| |
685 | 295 |
674 | 296 ============================================================================== |
297 3. Other items *tab-page-other* | |
298 | |
706 | 299 *tabline-menu* |
300 The GUI tab pages line has a popup menu. It is accessed with a right click. | |
301 The entries are: | |
302 Close Close the tab page under the mouse pointer. The | |
303 current one if there is no label under the mouse | |
304 pointer. | |
305 New Tab Open a tab page, editing an empty buffer. It appears | |
306 to the left of the mouse pointer. | |
1118 | 307 Open Tab... Like "New Tab" and additionally use a file selector to |
706 | 308 select a file to edit. |
309 | |
674 | 310 Diff mode works per tab page. You can see the diffs between several files |
311 within one tab page. Other tab pages can show differences between other | |
312 files. | |
313 | |
819 | 314 Variables local to a tab page start with "t:". |tabpage-variable| |
315 | |
824 | 316 Currently there is only one option local to a tab page: 'cmdheight'. |
317 | |
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318 *tabnew-autocmd* |
675 | 319 The TabLeave and TabEnter autocommand events can be used to do something when |
320 switching from one tab page to another. The exact order depends on what you | |
321 are doing. When creating a new tab page this works as if you create a new | |
322 window on the same buffer and then edit another buffer. Thus ":tabnew" | |
323 triggers: | |
324 WinLeave leave current window | |
325 TabLeave leave current tab page | |
6474 | 326 WinEnter enter window in new tab page |
675 | 327 TabEnter enter new tab page |
328 BufLeave leave current buffer | |
329 BufEnter enter new empty buffer | |
330 | |
678 | 331 When switching to another tab page the order is: |
675 | 332 BufLeave |
333 WinLeave | |
334 TabLeave | |
335 TabEnter | |
336 WinEnter | |
337 BufEnter | |
674 | 338 |
678 | 339 ============================================================================== |
340 4. Setting 'tabline' *setting-tabline* | |
341 | |
686 | 342 The 'tabline' option specifies what the line with tab pages labels looks like. |
343 It is only used when there is no GUI tab line. | |
344 | |
678 | 345 You can use the 'showtabline' option to specify when you want the line with |
346 tab page labels to appear: never, when there is more than one tab page or | |
347 always. | |
348 | |
349 The highlighting of the tab pages line is set with the groups TabLine | |
350 TabLineSel and TabLineFill. |hl-TabLine| |hl-TabLineSel| |hl-TabLineFill| | |
351 | |
1118 | 352 A "+" will be shown for a tab page that has a modified window. The number of |
353 windows in a tabpage is also shown. Thus "3+" means three windows and one of | |
354 them has a modified buffer. | |
355 | |
678 | 356 The 'tabline' option allows you to define your preferred way to tab pages |
357 labels. This isn't easy, thus an example will be given here. | |
358 | |
359 For basics see the 'statusline' option. The same items can be used in the | |
360 'tabline' option. Additionally, the |tabpagebuflist()|, |tabpagenr()| and | |
361 |tabpagewinnr()| functions are useful. | |
362 | |
1118 | 363 Since the number of tab labels will vary, you need to use an expression for |
364 the whole option. Something like: > | |
678 | 365 :set tabline=%!MyTabLine() |
366 | |
367 Then define the MyTabLine() function to list all the tab pages labels. A | |
368 convenient method is to split it in two parts: First go over all the tab | |
369 pages and define labels for them. Then get the label for each tab page. > | |
370 | |
371 function MyTabLine() | |
372 let s = '' | |
373 for i in range(tabpagenr('$')) | |
681 | 374 " select the highlighting |
678 | 375 if i + 1 == tabpagenr() |
376 let s .= '%#TabLineSel#' | |
377 else | |
378 let s .= '%#TabLine#' | |
379 endif | |
681 | 380 |
381 " set the tab page number (for mouse clicks) | |
382 let s .= '%' . (i + 1) . 'T' | |
383 | |
384 " the label is made by MyTabLabel() | |
678 | 385 let s .= ' %{MyTabLabel(' . (i + 1) . ')} ' |
386 endfor | |
681 | 387 |
388 " after the last tab fill with TabLineFill and reset tab page nr | |
389 let s .= '%#TabLineFill#%T' | |
390 | |
391 " right-align the label to close the current tab page | |
392 if tabpagenr('$') > 1 | |
393 let s .= '%=%#TabLine#%999Xclose' | |
394 endif | |
395 | |
678 | 396 return s |
397 endfunction | |
398 | |
399 Now the MyTabLabel() function is called for each tab page to get its label. > | |
400 | |
401 function MyTabLabel(n) | |
402 let buflist = tabpagebuflist(a:n) | |
403 let winnr = tabpagewinnr(a:n) | |
404 return bufname(buflist[winnr - 1]) | |
405 endfunction | |
406 | |
407 This is just a simplistic example that results in a tab pages line that | |
408 resembles the default, but without adding a + for a modified buffer or | |
1118 | 409 truncating the names. You will want to reduce the width of labels in a |
678 | 410 clever way when there is not enough room. Check the 'columns' option for the |
681 | 411 space available. |
674 | 412 |
686 | 413 ============================================================================== |
414 5. Setting 'guitablabel' *setting-guitablabel* | |
415 | |
416 When the GUI tab pages line is displayed, 'guitablabel' can be used to | |
417 specify the label to display for each tab page. Unlike 'tabline', which | |
418 specifies the whole tab pages line at once, 'guitablabel' is used for each | |
419 label separately. | |
420 | |
839 | 421 'guitabtooltip' is very similar and is used for the tooltip of the same label. |
422 This only appears when the mouse pointer hovers over the label, thus it | |
423 usually is longer. Only supported on some systems though. | |
424 | |
686 | 425 See the 'statusline' option for the format of the value. |
426 | |
427 The "%N" item can be used for the current tab page number. The |v:lnum| | |
839 | 428 variable is also set to this number when the option is evaluated. |
690 | 429 The items that use a file name refer to the current window of the tab page. |
686 | 430 |
839 | 431 Note that syntax highlighting is not used for the option. The %T and %X |
690 | 432 items are also ignored. |
686 | 433 |
690 | 434 A simple example that puts the tab page number and the buffer name in the |
435 label: > | |
686 | 436 :set guitablabel=%N\ %f |
437 | |
839 | 438 An example that resembles the default 'guitablabel': Show the number of |
1118 | 439 windows in the tab page and a '+' if there is a modified buffer: > |
686 | 440 |
690 | 441 function GuiTabLabel() |
686 | 442 let label = '' |
443 let bufnrlist = tabpagebuflist(v:lnum) | |
444 | |
445 " Add '+' if one of the buffers in the tab page is modified | |
446 for bufnr in bufnrlist | |
447 if getbufvar(bufnr, "&modified") | |
448 let label = '+' | |
449 break | |
450 endif | |
451 endfor | |
452 | |
453 " Append the number of windows in the tab page if more than one | |
454 let wincount = tabpagewinnr(v:lnum, '$') | |
455 if wincount > 1 | |
456 let label .= wincount | |
457 endif | |
458 if label != '' | |
459 let label .= ' ' | |
460 endif | |
461 | |
462 " Append the buffer name | |
463 return label . bufname(bufnrlist[tabpagewinnr(v:lnum) - 1]) | |
464 endfunction | |
690 | 465 |
686 | 466 set guitablabel=%{GuiTabLabel()} |
690 | 467 |
468 Note that the function must be defined before setting the option, otherwise | |
469 you get an error message for the function not being known. | |
470 | |
857 | 471 If you want to fall back to the default label, return an empty string. |
472 | |
473 If you want to show something specific for a tab page, you might want to use a | |
474 tab page local variable. |t:var| | |
475 | |
686 | 476 |
14421 | 477 vim:tw=78:ts=8:noet:ft=help:norl: |