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diff --git a/runtime/doc/windows.txt b/runtime/doc/windows.txt new file mode 100644 index 000000000..69f37c943 --- /dev/null +++ b/runtime/doc/windows.txt @@ -0,0 +1,1123 @@ +*windows.txt* For Vim version 7.0aa. Last change: 2004 Apr 29 + + + VIM REFERENCE MANUAL by Bram Moolenaar + + +Editing with multiple windows and buffers. *windows* *buffers* + +The commands which have been added to use multiple windows and buffers are +explained here. Additionally, there are explanations for commands that work +differently when used in combination with more than one window. + +The basics are explained in chapter 7 and 8 of the user manual |usr_07.txt| +|usr_08.txt|. + +1. Introduction |windows-intro| +2. Starting Vim |windows-starting| +3. Opening and closing a window |opening-window| +4. Moving cursor to other windows |window-move-cursor| +5. Moving windows around |window-moving| +6. Window resizing |window-resize| +7. Argument and buffer list commands |buffer-list| +8. Do a command in all buffers or windows |list-repeat| +9. Tag or file name under the cursor |window-tag| +10. The preview window |preview-window| +11. Using hidden buffers |buffer-hidden| +12. Special kinds of buffers |special-buffers| + +{Vi does not have any of these commands} +{not able to use multiple windows when the |+windows| feature was disabled at +compile time} +{not able to use vertically split windows when the |+vertsplit| feature was +disabled at compile time} + +============================================================================== +1. Introduction *windows-intro* + +A window is a viewport onto a buffer. You can use multiple windows on one +buffer, or several windows on different buffers. + +A buffer is a file loaded into memory for editing. The original file remains +unchanged until you write the buffer to the file. + +A buffer can be in one of three states: + + *active-buffer* +active: The buffer is displayed in a window. If there is a file for this + buffer, it has been read into the buffer. The buffer may have been + modified since then and thus be different from the file. + *hidden-buffer* +hidden: The buffer is not displayed. If there is a file for this buffer, it + has been read into the buffer. Otherwise it's the same as an active + buffer, you just can't see it. + *inactive-buffer* +inactive: The buffer is not displayed and does not contain anything. Options + for the buffer are remembered if the file was once loaded. It can + contain marks from the |viminfo| file. But the buffer doesn't + contain text. + +In a table: + +state displayed loaded ":buffers" ~ + in window shows ~ +active yes yes 'a' +hidden no yes 'h' +inactive no no ' ' + +Note: All CTRL-W commands can also be executed with |:wincmd|, for those +places where a Normal mode command can't be used or is inconvenient. + +============================================================================== +2. Starting Vim *windows-starting* + +By default, Vim starts with one window, just like Vi. + +The "-o" and "-O" arguments to Vim can be used to open a window for each file +in the argument list. The "-o" argument will split the windows horizontally; +the "-O" argument will split the windows vertically. If both "-o" and "-O" +are given, the last one encountered will be used to determine the split +orientation. For example, this will open three windows, split horizontally: > + vim -o file1 file2 file3 + +"-oN", where N is a decimal number, opens N windows split horizontally. If +there are more file names than windows, only N windows are opened and some +files do not get a window. If there are more windows than file names, the +last few windows will be editing empty buffers. Similarly, "-ON" opens N +windows split vertically, with the same restrictions. + +If there are many file names, the windows will become very small. You might +want to set the 'winheight' and/or 'winwidth' options to create a workable +situation. + +Buf/Win Enter/Leave |autocommand|s are not executed when opening the new +windows and reading the files, that's only done when they are really entered. + + *status-line* +A status line will be used to separate windows. The 'laststatus' option tells +when the last window also has a status line: + 'laststatus' = 0 never a status line + 'laststatus' = 1 status line if there is more than one window + 'laststatus' = 2 always a status line + +You can change the contents of the status line with the 'statusline' option. + +Normally, inversion is used to display the status line. This can be changed +with the 's' character in the 'highlight' option. For example, "sb" sets it to +bold characters. If no highlighting is used for the status line ("sn"), the +'^' character is used for the current window, and '=' for other windows. If +the mouse is supported and enabled with the 'mouse' option, a status line can +be dragged to resize windows. + +Note: If you expect your status line to be in reverse video and it isn't, +check if the 'highlight' option contains "si". In version 3.0, this meant to +invert the status line. Now it should be "sr", reverse the status line, as +"si" now stands for italic! If italic is not available on your terminal, the +status line is inverted anyway; you will only see this problem on terminals +that have termcap codes for italics. + +============================================================================== +3. Opening and closing a window *opening-window* *E36* + +CTRL-W s *CTRL-W_s* +CTRL-W S *CTRL-W_S* +CTRL-W CTRL-S *CTRL-W_CTRL-S* +:[N]sp[lit] [++opt] [+cmd] *:sp* *:split* + Split current window in two. The result is two viewports on + the same file. Make new window N high (default is to use half + the height of the current window). Reduces the current window + height to create room (and others, if the 'equalalways' option + is set and 'eadirection' isn't "hor"). + Note: CTRL-S does not work on all terminals and might block + further input, use CTRL-Q to get going again. + Also see |++opt| and |+cmd|. + +CTRL-W CTRL-V *CTRL-W_CTRL-V* +CTRL-W v *CTRL-W_v* +:[N]vs[plit] [++opt] [+cmd] [file] *:vs* *:vsplit* + Like |:split|, but split vertically. If 'equalalways' is set + and 'eadirection' isn't "ver" the windows will be spread out + horizontally, unless a width was specified. + Note: In other places CTRL-Q does the same as CTRL-V, but here + it doesn't! + +CTRL-W n *CTRL-W_n* +CTRL-W CTRL_N *CTRL-W_CTRL-N* +:[N]new [++opt] [+cmd] *:new* + Create a new window and start editing an empty file in it. + Make new window N high (default is to use half the existing + height). Reduces the current window height to create room (and + others, if the 'equalalways' option is set and 'eadirection' + isn't "hor"). + Also see |++opt| and |+cmd|. + If 'fileformats' is not empty, the first format given will be + used for the new buffer. If 'fileformats' is empty, the + 'fileformat' of the current buffer is used. This can be + overridden with the |++opt| argument. + Autocommands are executed in this order: + 1. WinLeave for the current window + 2. WinEnter for the new window + 3. BufLeave for the current buffer + 4. BufEnter for the new buffer + This behaves like a ":split" first, and then a ":e" command. + +:[N]vne[w] [++opt] [+cmd] [file] *:vne* *:vnew* + Like |:new|, but split vertically. If 'equalalways' is set + and 'eadirection' isn't "ver" the windows will be spread out + horizontally, unless a width was specified. + +:[N]new [++opt] [+cmd] {file} +:[N]sp[lit] [++opt] [+cmd] {file} *:split_f* + Create a new window and start editing file {file} in it. + If [+cmd] is given, execute the command when the file has been + loaded |+cmd|. + Also see |++opt|. + Make new window N high (default is to use half the existing + height). Reduces the current window height to create room + (and others, if the 'equalalways' option is set). + +:[N]sv[iew] [++opt] [+cmd] {file} *:sv* *:sview* *splitview* + Same as ":split", but set 'readonly' option for this buffer. + +:[N]sf[ind] [++opt] [+cmd] {file} *:sf* *:sfind* *splitfind* + Same as ":split", but search for {file} in 'path'. Doesn't + split if {file} is not found. + +CTRL-W CTRL-^ *CTRL-W_CTRL-^* *CTRL-W_^* +CTRL-W ^ Does ":split #", split window in two and edit alternate file. + When a count is given, it becomes ":split #N", split window + and edit buffer N. + +Note that the 'splitbelow' and 'splitright' options influence where a new +window will appear. + + *:vert* *:vertical* +:vert[ical] {cmd} + Execute {cmd}. If it contains a command that splits a window, + it will be split vertically. + +:lefta[bove] {cmd} *:lefta* *:leftabove* +:abo[veleft] {cmd} *:abo* *:aboveleft* + Execute {cmd}. If it contains a command that splits a window, + it will be opened left (vertical split) or above (horizontal + split) the current window. Overrules 'splitbelow' and + 'splitright'. + +:rightb[elow] {cmd} *:rightb* *:rightbelow* +:bel[owright] {cmd} *:bel* *:belowright* + Execute {cmd}. If it contains a command that splits a window, + it will be opened right (vertical split) or below (horizontal + split) the current window. Overrules 'splitbelow' and + 'splitright'. + + *:topleft* *E442* +:to[pleft] {cmd} + Execute {cmd}. If it contains a command that splits a window, + it will appear at the top and occupy the full width of the Vim + window. When the split is vertical the window appears at the + far left and occupies the full height of the Vim window. + + *:botright* +:bo[tright] {cmd} + Execute {cmd}. If it contains a command that splits a window, + it will appear at the bottom and occupy the full width of the + Vim window. When the split is vertical the window appears at + the far right and occupies the full height of the Vim window. + +These command modifiers can be combined to make a vertically split window +occupy the full height. Example: > + :vertical topleft edit tags +Opens a vertically split, full-height window on the "tags" file at the far +left of the Vim window. + + +Closing a window +---------------- + +CTRL-W q *CTRL-W_q* +CTRL-W CTRL-Q *CTRL-W_CTRL-Q* +:q[uit] Quit current window. When quitting the last window (not + counting a help window), exit Vim. + When 'hidden' is set, and there is only one window for the + current buffer, it becomes hidden. + When 'hidden' is not set, and there is only one window for the + current buffer, and the buffer was changed, the command fails. + (Note: CTRL-Q does not work on all terminals) + +:q[uit]! Quit current window. If this was the last window for a buffer, + any changes to that buffer are lost. When quitting the last + window (not counting help windows), exit Vim. The contents of + the buffer are lost, even when 'hidden' is set. + +CTRL-W c *CTRL-W_c* *:clo* *:close* +:clo[se][!] Close current window. When the 'hidden' option is set, or + when the buffer was changed and the [!] is used, the buffer + becomes hidden (unless there is another window editing it). + This command fails when: *E444* + - There is only one window on the screen. + - When 'hidden' is not set, [!] is not used, the buffer has + changes, and there is no other window on this buffer. + Changes to the buffer are not written and won't get lost, so + this is a "safe" command. + +CTRL-W CTRL-C *CTRL-W_CTRL-C* + You might have expected that CTRL-W CTRL-C closes the current + window, but that does not work, because the CTRL-C cancels the + command. + + *:hide* +:hid[e] Quit current window, unless it is the last window on the + screen. The buffer becomes hidden (unless there is another + window editing it or 'bufhidden' is "unload" or "delete"). + The value of 'hidden' is irrelevant for this command. + Changes to the buffer are not written and won't get lost, so + this is a "safe" command. + +:hid[e] {cmd} Execute {cmd} with 'hidden' is set. The previous value of + 'hidden' is restored after {cmd} has been executed. + Example: > + :hide edit Makefile +< This will edit "Makefile", and hide the current buffer if it + has any changes. + +CTRL-W o *CTRL-W_o* *E445* +CTRL-W CTRL-O *CTRL-W_CTRL-O* *:on* *:only* +:on[ly][!] Make the current window the only one on the screen. All other + windows are closed. + When the 'hidden' option is set, all buffers in closed windows + become hidden. + When 'hidden' is not set, and the 'autowrite' option is set, + modified buffers are written. Otherwise, windows that have + buffers that are modified are not removed, unless the [!] is + given, then they become hidden. But modified buffers are + never abandoned, so changes cannot get lost. + +============================================================================== +4. Moving cursor to other windows *window-move-cursor* + +CTRL-W <Down> *CTRL-W_<Down>* +CTRL-W CTRL-J *CTRL-W_CTRL-J* *CTRL-W_j* +CTRL-W j Move cursor to Nth window below current one. Uses the cursor + position to select between alternatives. + +CTRL-W <Up> *CTRL-W_<Up>* +CTRL-W CTRL-K *CTRL-W_CTRL-K* *CTRL-W_k* +CTRL-W k Move cursor to Nth window above current one. Uses the cursor + position to select between alternatives. + +CTRL-W <Left> *CTRL-W_<Left>* +CTRL-W CTRL-H *CTRL-W_CTRL-H* +CTRL-W <BS> *CTRL-W_<BS>* *CTRL-W_h* +CTRL-W h Move cursor to Nth window left of current one. Uses the + cursor position to select between alternatives. + +CTRL-W <Right> *CTRL-W_<Right>* +CTRL-W CTRL-L *CTRL-W_CTRL-L* *CTRL-W_l* +CTRL-W l Move cursor to Nth window right of current one. Uses the + cursor position to select between alternatives. + +CTRL-W w *CTRL-W_w* *CTRL-W_CTRL-W* +CTRL-W CTRL-W Without count: move cursor to window below/right of the + current one. If there is no window below or right, go to + top-left window. + With count: go to Nth window (windows are numbered from + top-left to bottom-right). To obtain the window number see + |bufwinnr()| and |winnr()|. + + *CTRL-W_W* +CTRL-W W Without count: move cursor to window above/left of current + one. If there is no window above or left, go to bottom-right + window. With count: go to Nth window (windows are numbered + from top-left to bottom-right). + +CTRL-W t *CTRL-W_t* *CTRL-W_CTRL-T* +CTRL-W CTRL-T Move cursor to top-left window. + +CTRL-W b *CTRL-W_b* *CTRL-W_CTRL-B* +CTRL-W CTRL-B Move cursor to bottom-right window. + +CTRL-W p *CTRL-W_p* *CTRL-W_CTRL-P* +CTRL-W CTRL-P Go to previous (last accessed) window. + + *CTRL-W_P* *E441* +CTRL-W P Go to preview window. When there is no preview window this is + an error. + {not available when compiled without the |+quickfix| feature} + +If Visual mode is active and the new window is not for the same buffer, the +Visual mode is ended. If the window is on the same buffer, the cursor +position is set to keep the same Visual area selected. + + *:winc* *:wincmd* +These commands can also be executed with ":wincmd": + +:[count]winc[md] {arg} + Like executing CTRL-W [count] {arg}. Example: > + :wincmd j +< Moves to the window below the current one. + This command is useful when a Normal mode cannot be used (for + the |CursorHold| autocommand event). Or when a Normal mode + command is inconvenient. + The count can also be a window number. Example: > + :exe nr . "wincmd w" +< This goes to window "nr". + +============================================================================== +5. Moving windows around *window-moving* + +CTRL-W r *CTRL-W_r* *CTRL-W_CTRL-R* *E443* +CTRL-W CTRL-R Rotate windows downwards/rightwards. The first window becomes + the second one, the second one becomes the third one, etc. + The last window becomes the first window. The cursor remains + in the same window. + This only works within the row or column of windows that the + current window is in. + + *CTRL-W_R* +CTRL-W R Rotate windows upwards/leftwards. The second window becomes + the first one, the third one becomes the second one, etc. The + first window becomes the last window. The cursor remains in + the same window. + This only works within the row or column of windows that the + current window is in. + +CTRL-W x *CTRL-W_x* *CTRL-W_CTRL-X* +CTRL-W CTRL-X Without count: Exchange current window with next one. If there + is no next window, exchange with previous window. + With count: Exchange current window with Nth window (first + window is 1). The cursor is put in the other window. + When vertical and horizontal window splits are mixed, the + exchange is only done in the row or column of windows that the + current window is in. + +The following commands can be used to change the window layout. For example, +when there are two vertically split windows, CTRL-W K will change that in +horizontally split windows. CTRL-W H does it the other way around. + + *CTRL-W_K* +CTRL-W K Move the current window to be at the very top, using the full + width of the screen. This works like closing the current + window and then creating another one with ":topleft split", + except that the current window contents is used for the new + window. + + *CTRL-W_J* +CTRL-W J Move the current window to be at the very bottom, using the + full width of the screen. This works like closing the current + window and then creating another one with ":botright split", + except that the current window contents is used for the new + window. + + *CTRL-W_H* +CTRL-W H Move the current window to be at the far left, using the + full height of the screen. This works like closing the + current window and then creating another one with + ":vert topleft split", except that the current window contents + is used for the new window. + {not available when compiled without the +vertsplit feature} + + *CTRL-W_L* +CTRL-W L Move the current window to be at the far right, using the full + height of the screen. This works like closing the + current window and then creating another one with + ":vert botright split", except that the current window + contents is used for the new window. + {not available when compiled without the +vertsplit feature} + +============================================================================== +6. Window resizing *window-resize* + + *CTRL-W_=* +CTRL-W = Make all windows (almost) equally high and wide, but use + 'winheight' and 'winwidth' for the current window. + +:res[ize] -N *:res* *:resize* *CTRL-W_-* +CTRL-W - Decrease current window height by N (default 1). + If used after 'vertical': decrease width by N. + +:res[ize] +N *CTRL-W_+* +CTRL-W + Increase current window height by N (default 1). + If used after 'vertical': increase width by N. + +:res[ize] [N] +CTRL-W CTRL-_ *CTRL-W_CTRL-_* *CTRL-W__* +CTRL-W _ Set current window height to N (default: highest possible). + +z{nr}<CR> Set current window height to {nr}. + + *CTRL-W_<* +CTRL-W < Decrease current window width by N (default 1). + + *CTRL-W_>* +CTRL-W > Increase current window width by N (default 1). + +:vertical res[ize] [N] *:vertical-resize* *CTRL-W_bar* +CTRL-W | Set current window width to N (default: widest possible). + +You can also resize a window by dragging a status line up or down with the +mouse. Or by dragging a vertical separator line left or right. This only +works if the version of Vim that is being used supports the mouse and the +'mouse' option has been set to enable it. + +The option 'winheight' ('wh') is used to set the minimal window height of the +current window. This option is used each time another window becomes the +current window. If the option is '0', it is disabled. Set 'winheight' to a +very large value, e.g., '9999', to make the current window always fill all +available space. Set it to a reasonable value, e.g., '10', to make editing in +the current window comfortable. + +The equivalent 'winwidth' ('wiw') option is used to set the minimal width of +the current window. + +When the option 'equalalways' ('ea') is set, all the windows are automatically +made the same size after splitting or closing a window. If you don't set this +option, splitting a window will reduce the size of the current window and +leave the other windows the same. When closing a window, the extra lines are +given to the window above it. + +The 'eadirection' option limits the direction in which the 'equalalways' +option is applied. The default "both" resizes in both directions. When the +value is "ver" only the heights of windows are equalized. Use this when you +have manually resized a vertically split window and want to keep this width. +Likewise, "hor" causes only the widths of windows to be equalized. + +The option 'cmdheight' ('ch') is used to set the height of the command-line. +If you are annoyed by the |hit-enter| prompt for long messages, set this +option to 2 or 3. + +If there is only one window, resizing that window will also change the command +line height. If there are several windows, resizing the current window will +also change the height of the window below it (and sometimes the window above +it). + +The minimal height and width of a window is set with 'winminheight' and +'winminwidth'. These are hard values, a window will never become smaller. + +============================================================================== +7. Argument and buffer list commands *buffer-list* + + args list buffer list meaning ~ +1. :[N]argument [N] 11. :[N]buffer [N] to arg/buf N +2. :[N]next [file ..] 12. :[N]bnext [N] to Nth next arg/buf +3. :[N]Next [N] 13. :[N]bNext [N] to Nth previous arg/buf +4. :[N]previous [N] 14. :[N]bprevious [N] to Nth previous arg/buf +5. :rewind / :first 15. :brewind / :bfirst to first arg/buf +6. :last 16. :blast to last arg/buf +7. :all 17. :ball edit all args/buffers + 18. :unhide edit all loaded buffers + 19. :[N]bmod [N] to Nth modified buf + + split & args list split & buffer list meaning ~ +21. :[N]sargument [N] 31. :[N]sbuffer [N] split + to arg/buf N +22. :[N]snext [file ..] 32. :[N]sbnext [N] split + to Nth next arg/buf +23. :[N]sNext [N] 33. :[N]sbNext [N] split + to Nth previous arg/buf +24. :[N]sprevious [N] 34. :[N]sbprevious [N] split + to Nth previous arg/buf +25. :srewind / :sfirst 35. :sbrewind / :sbfirst split + to first arg/buf +26. :slast 36. :sblast split + to last arg/buf +27. :sall 37: :sball edit all args/buffers + 38. :sunhide edit all loaded buffers + 39. :[N]sbmod [N] split + to Nth modified buf + +40. :args list of arguments +41. :buffers list of buffers + +The meaning of [N] depends on the command: + [N] is number of buffers to go forward/backward on ?2, ?3, and ?4 + [N] is an argument number, defaulting to current argument, for 1 and 21 + [N] is a buffer number, defaulting to current buffer, for 11 and 31 + [N] is a count for 19 and 39 + +Note: ":next" is an exception, because it must accept a list of file names +for compatibility with Vi. + + +The argument list and multiple windows +-------------------------------------- + +The current position in the argument list can be different for each window. +Remember that when doing ":e file", the position in the argument list stays +the same, but you are not editing the file at that position. To indicate +this, the file message (and the title, if you have one) shows +"(file (N) of M)", where "(N)" is the current position in the file list, and +"M" the number of files in the file list. + +All the entries in the argument list are added to the buffer list. Thus, you +can also get to them with the buffer list commands, like ":bnext". + +:[N]al[l][!] [N] *:al* *:all* *:sal* *:sall* +:[N]sal[l][!] [N] + Rearrange the screen to open one window for each argument. + All other windows are closed. When a count is given, this is + the maximum number of windows to open. + When the 'hidden' option is set, all buffers in closed windows + become hidden. + When 'hidden' is not set, and the 'autowrite' option is set, + modified buffers are written. Otherwise, windows that have + buffers that are modified are not removed, unless the [!] is + given, then they become hidden. But modified buffers are + never abandoned, so changes cannot get lost. + [N] is the maximum number of windows to open. 'winheight' + also limits the number of windows opened ('winwidth' if + |:vertical| was prepended). + Buf/Win Enter/Leave autocommands are not executed for the new + windows here, that's only done when they are really entered. + +:[N]sa[rgument][!] [++opt] [+cmd] [N] *:sa* *:sargument* + Short for ":split | argument [N]": split window and go to Nth + argument. But when there is no such argument, the window is + not split. Also see |++opt| and |+cmd|. + +:[N]sn[ext][!] [++opt] [+cmd] [file ..] *:sn* *:snext* + Short for ":split | [N]next": split window and go to Nth next + argument. But when there is no next file, the window is not + split. Also see |++opt| and |+cmd|. + +:[N]spr[evious][!] [++opt] [+cmd] [N] *:spr* *:sprevious* +:[N]sN[ext][!] [++opt] [+cmd] [N] *:sN* *:sNext* + Short for ":split | [N]Next": split window and go to Nth + previous argument. But when there is no previous file, the + window is not split. Also see |++opt| and |+cmd|. + + *:sre* *:srewind* +:sre[wind][!] [++opt] [+cmd] + Short for ":split | rewind": split window and go to first + argument. But when there is no argument list, the window is + not split. Also see |++opt| and |+cmd|. + + *:sfir* *:sfirst* +:sfir[st [++opt] [+cmd] + Same as ":srewind". + + *:sla* *:slast* +:sla[st][!] [++opt] [+cmd] + Short for ":split | last": split window and go to last + argument. But when there is no argument list, the window is + not split. Also see |++opt| and |+cmd|. + + *:dr* *:drop* +:dr[op] {file} .. + Edit the first {file} in a window. + - If the file is already open in a window change to that + window. + - If the file is not open in a window edit the file in the + current window. If the current buffer can't be |abandon|ed, + the window is split first. + The |argument-list| is set, like with the |:next| command. + The purpose of this command is that it can be used from a + program that wants Vim to edit another file, e.g., a debugger. + {only available when compiled with the +gui feature} + +============================================================================== +8. Do a command in all buffers or windows *list-repeat* + + *:windo* +:windo[!] {cmd} Execute {cmd} in each window. + It works like doing this: > + CTRL-W t + :{cmd} + CTRL-W w + :{cmd} + etc. +< When an error is detected on one window, further + windows will not be visited. + The last window (or where an error occurred) becomes + the current window. + {cmd} can contain '|' to concatenate several commands. + {cmd} must not open or close windows or reorder them. + {not in Vi} {not available when compiled without the + |+listcmds| feature} + Also see |:argdo| and |:bufdo|. + + *:bufdo* +:bufdo[!] {cmd} Execute {cmd} in each buffer in the buffer list. + It works like doing this: > + :bfirst + :{cmd} + :bnext + :{cmd} + etc. +< When the current file can't be |abandon|ed and the [!] + is not present, the command fails. + When an error is detected on one buffer, further + buffers will not be visited. + Unlisted buffers are skipped. + The last buffer (or where an error occurred) becomes + the current buffer. + {cmd} can contain '|' to concatenate several commands. + {cmd} must not delete buffers or add buffers to the + buffer list. + Note: While this command is executing, the Syntax + autocommand event is disabled by adding it to + 'eventignore'. This considerably speeds up editing + each buffer. + {not in Vi} {not available when compiled without the + |+listcmds| feature} + Also see |:argdo| and |:windo|. + +Examples: > + + :windo set nolist nofoldcolumn | normal zn + +This resets the 'list' option and disables folding in all windows. > + + :bufdo set fileencoding= | update + +This resets the 'fileencoding' in each buffer and writes it if this changed +the buffer. The result is that all buffers will use the 'encoding' encoding +(if conversion works properly). + +============================================================================== +9. Tag or file name under the cursor *window-tag* + + *:sta* *:stag* +:sta[g][!] [tagname] + Does ":tag[!] [tagname]" and splits the window for the found + tag. See also |:tag|. + +CTRL-W ] *CTRL-W_]* *CTRL-W_CTRL-]* +CTRL-W CTRL-] Split current window in two. Use identifier under cursor as a + tag and jump to it in the new upper window. Make new window N + high. + + *CTRL-W_g]* +CTRL-W g ] Split current window in two. Use identifier under cursor as a + tag and perform ":tselect" on it in the new upper window. + Make new window N high. + + *CTRL-W_g_CTRL-]* +CTRL-W g CTRL-] Split current window in two. Use identifier under cursor as a + tag and perform ":tjump" on it in the new upper window. Make + new window N high. + +CTRL-W f *CTRL-W_f* *CTRL-W_CTRL-F* +CTRL-W CTRL-F Split current window in two. Edit file name under cursor. + Like ":split ]f", but window isn't split if the file does not + exist. + Uses the 'path' variable as a list of directory names where to + look for the file. Also the path for current file is + used to search for the file name. + If the name is a hypertext link that looks like + "type://machine/path", only "/path" is used. + If a count is given, the count'th matching file is edited. + {not available when the |+file_in_path| feature was disabled + at compile time} + +Also see |CTRL-W_CTRL-I|: open window for an included file that includes +the keyword under the cursor. + +============================================================================== +10. The preview window *preview-window* + +The preview window is a special window to show (preview) another file. It is +normally a small window used to show an include file or definition of a +function. +{not available when compiled without the |+quickfix| feature} + +There can be only one preview window. It is created with one of the commands +below. The 'previewheight' option can be set to specify the height of the +preview window when it's opened. The 'previewwindow' option is set in the +preview window to be able to recognize it. The 'winfixheight' option is set +to have it keep the same height when opening/closing other windows. + + *:pta* *:ptag* +:pta[g][!] [tagname] + Does ":tag[!] [tagname]" and shows the found tag in a + "Preview" window without changing the current buffer or cursor + position. If a "Preview" window already exists, it is re-used + (like a help window is). If a new one is opened, + 'previewheight' is used for the height of the window. See + also |:tag|. + See below for an example. |CursorHold-example| + Small difference from |:tag|: When [tagname] is equal to the + already displayed tag, the position in the matching tag list + is not reset. This makes the CursorHold example work after a + |:ptnext|. + +CTRL-W z *CTRL-W_z* +CTRL-W CTRL-Z *CTRL-W_CTRL-Z* *:pc* *:pclose* +:pc[lose][!] Close any "Preview" window currently open. When the 'hidden' + option is set, or when the buffer was changed and the [!] is + used, the buffer becomes hidden (unless there is another + window editing it). The command fails if any "Preview" buffer + cannot be closed. See also |:close|. + + *:pp* *:ppop* +:[count]pp[op][!] + Does ":[count]pop[!]" in the preview window. See |:pop| and + |:ptag|. {not in Vi} + +CTRL-W } *CTRL-W_}* + Use identifier under cursor as a tag and perform a :ptag on + it. Make the new Preview window (if required) N high. If N is + not given, 'previewheight' is used. + +CTRL-W g } *CTRL-W_g}* + Use identifier under cursor as a tag and perform a :ptjump on + it. Make the new Preview window (if required) N high. If N is + not given, 'previewheight' is used. + + *:ped* *:pedit* +:ped[it][!] [++opt] [+cmd] {file} + Edit {file} in the preview window. The preview window is + opened like with |:ptag|. The current window and cursor + position isn't changed. Useful example: > + :pedit +/fputc /usr/include/stdio.h +< + *:ps* *:psearch* +:[range]ps[earch][!] [count] [/]pattern[/] + Works like |:ijump| but shows the found match in the preview + window. The preview window is opened like with |:ptag|. The + current window and cursor position isn't changed. Useful + example: > + :psearch popen +< Like with the |:ptag| command, you can use this to + automatically show information about the word under the + cursor. This is less clever than using |:ptag|, but you don't + need a tags file and it will also find matches in system + include files. Example: > + :au! CursorHold *.[ch] nested exe "silent! psearch " . expand("<cword>") +< Warning: This can be slow. + +Example *CursorHold-example* > + + :au! CursorHold *.[ch] nested exe "silent! ptag " . expand("<cword>") + +This will cause a ":ptag" to be executed for the keyword under the cursor, +when the cursor hasn't moved for the time set with 'updatetime'. The "nested" +makes other autocommands be executed, so that syntax highlighting works in the +preview window. The "silent!" avoids an error message when the tag could not +be found. Also see |CursorHold|. To disable this again: > + + :au! CursorHold + +A nice addition is to highlight the found tag, avoid the ":ptag" when there +is no word under the cursor, and a few other things: > + + :au! CursorHold *.[ch] nested call PreviewWord() + :func PreviewWord() + : if &previewwindow " don't do this in the preview window + : return + : endif + : let w = expand("<cword>") " get the word under cursor + : if w =~ '\a' " if the word contains a letter + : + : " Delete any existing highlight before showing another tag + : silent! wincmd P " jump to preview window + : if &previewwindow " if we really get there... + : match none " delete existing highlight + : wincmd p " back to old window + : endif + : + : " Try displaying a matching tag for the word under the cursor + : try + : exe "ptag " . w + : catch + : return + : endtry + : + : silent! wincmd P " jump to preview window + : if &previewwindow " if we really get there... + : if has("folding") + : silent! .foldopen " don't want a closed fold + : endif + : call search("$", "b") " to end of previous line + : let w = substitute(w, '\\', '\\\\', "") + : call search('\<\V' . w . '\>') " position cursor on match + : " Add a match highlight to the word at this position + : hi previewWord term=bold ctermbg=green guibg=green + : exe 'match previewWord "\%' . line(".") . 'l\%' . col(".") . 'c\k*"' + : wincmd p " back to old window + : endif + : endif + :endfun + +============================================================================== +11. Using hidden buffers *buffer-hidden* + +A hidden buffer is not displayed in a window, but is still loaded into memory. +This makes it possible to jump from file to file, without the need to read or +write the file every time you get another buffer in a window. +{not available when compiled without the |+listcmds| feature} + + *:buffer-!* +If the option 'hidden' ('hid') is set, abandoned buffers are kept for all +commands that start editing another file: ":edit", ":next", ":tag", etc. The +commands that move through the buffer list sometimes make the current buffer +hidden although the 'hidden' option is not set. This happens when a buffer is +modified, but is forced (with '!') to be removed from a window, and +'autowrite' is off or the buffer can't be written. + +You can make a hidden buffer not hidden by starting to edit it with any +command. Or by deleting it with the ":bdelete" command. + +The 'hidden' is global, it is used for all buffers. The 'bufhidden' option +can be used to make an exception for a specific buffer. It can take these +values: + <empty> Use the value of 'hidden'. + hide Hide this buffer, also when 'hidden' is not set. + unload Don't hide but unload this buffer, also when 'hidden' + is set. + delete Delete the buffer. + + *hidden-quit* +When you try to quit Vim while there is a hidden, modified buffer, you will +get an error message and Vim will make that buffer the current buffer. You +can then decide to write this buffer (":wq") or quit without writing (":q!"). +Be careful: there may be more hidden, modified buffers! + +A buffer can also be unlisted. This means it exists, but it is not in the +list of buffers. |unlisted-buffer| + + +:files[!] *:files* +:buffers[!] *:buffers* *:ls* +:ls[!] Show all buffers. Example: + + 1 #h "/test/text" line 1 ~ + 2u "asdf" line 0 ~ + 3 %l+ "version.c" line 1 ~ + + When the [!] is included the list will show unlisted buffers + (the term "unlisted" is a bit confusing then...). + + Each buffer has a unique number. That number will not change, + so you can always go to a specific buffer with ":buffer N" or + "N CTRL-^", where N is the buffer number. + + Indicators (chars in the same column are mutually exclusive): + u an unlisted buffer (only displayed when [!] is used) + |unlisted-buffer| + % the buffer in the current window + # the alternate buffer for ":e #" and CTRL-^ + a an active buffer: it is loaded and visible + h a hidden buffer: It is loaded, but currently not + displayed in a window |hidden-buffer| + - a buffer with 'modifiable' off + = a readonly buffer + + a modified buffer + x a buffer with read errors + + *:bad* *:badd* +:bad[d] [+lnum] {fname} + Add file name {fname} to the buffer list, without loading it. + If "lnum" is specified, the cursor will be positioned at that + line when the buffer is first entered. Note that other + commands after the + will be ignored. + +:[N]bd[elete][!] *:bd* *:bdel* *:bdelete* *E516* +:bd[elete][!] [N] + Unload buffer [N] (default: current buffer) and delete it from + the buffer list. If the buffer was changed, this fails, + unless when [!] is specified, in which case changes are lost. + The file remains unaffected. Any windows for this buffer are + closed. If buffer [N] is the current buffer, another buffer + will be displayed instead. This is the most recent entry in + the jump list that points into a loaded buffer. + Actually, the buffer isn't completely deleted, it is removed + from the buffer list |unlisted-buffer| and option values, + variables and mappings/abbreviations for the buffer are + cleared. + +:bdelete[!] {bufname} *E93* *E94* + Like ":bdelete[!] [N]", but buffer given by name. Note that a + buffer whose name is a number cannot be referenced by that + name; use the buffer number instead. Insert a backslash + before a space in a buffer name. + +:bdelete[!] N1 N2 ... + Do ":bdelete[!]" for buffer N1, N2, etc. The arguments can be + buffer numbers or buffer names (but not buffer names that are + a number). Insert a backslash before a space in a buffer + name. + +:N,Mbdelete[!] Do ":bdelete[!]" for all buffers in the range N to M + |inclusive|. + +:[N]bw[ipeout][!] *:bw* *:bwipe* *:bwipeout* *E517* +:bw[ipeout][!] {bufname} +:N,Mbw[ipeout][!] +:bw[ipeout][!] N1 N2 ... + Like |:bdelete|, but really delete the buffer. All marks in + this buffer become invalid, option settings are lost, etc. + Don't use this unless you know what you are doing. + +:[N]bun[load][!] *:bun* *:bunload* *E515* +:bun[load][!] [N] + Unload buffer [N] (default: current buffer). The memory + allocated for this buffer will be freed. The buffer remains + in the buffer list. + If the buffer was changed, this fails, unless when [!] is + specified, in which case the changes are lost. + Any windows for this buffer are closed. If buffer [N] is the + current buffer, another buffer will be displayed instead. + This is the most recent entry in the jump list that points + into a loaded buffer. + +:bunload[!] {bufname} + Like ":bunload[!] [N]", but buffer given by name. Note that a + buffer whose name is a number cannot be referenced by that + name; use the buffer number instead. Insert a backslash + before a space in a buffer name. + +:N,Mbunload[!] Do ":bunload[!]" for all buffers in the range N to M + |inclusive|. + +:bunload[!] N1 N2 ... + Do ":bunload[!]" for buffer N1, N2, etc. The arguments can be + buffer numbers or buffer names (but not buffer names that are + a number). Insert a backslash before a space in a buffer + name. + +:[N]b[uffer][!] [N] *:b* *:bu* *:buf* *:buffer* *E86* + Edit buffer [N] from the buffer list. If [N] is not given, + the current buffer remains being edited. See |:buffer-!| for + [!]. This will also edit a buffer that is not in the buffer + list, without setting the 'buflisted' flag. + +:[N]b[uffer][!] {filename} + Edit buffer for {filename} from the buffer list. See + |:buffer-!| for [!]. This will also edit a buffer that is not + in the buffer list, without setting the 'buflisted' flag. + +:[N]sb[uffer] [N] *:sb* *:sbuffer* + Split window and edit buffer [N] from the buffer list. If [N] + is not given, the current buffer is edited. Respects the + "useopen" setting of 'switchbuf' when splitting. This will + also edit a buffer that is not in the buffer list, without + setting the 'buflisted' flag. + +:[N]sb[uffer] {filename} + Split window and edit buffer for {filename} from the buffer + list. This will also edit a buffer that is not in the buffer + list, without setting the 'buflisted' flag. + + *:bn* *:bnext* *E87* +:[N]bn[ext][!] [N] + Go to [N]th next buffer in buffer list. [N] defaults to one. + Wraps around the end of the buffer list. + See |:buffer-!| for [!]. + If you are in a help buffer, this takes you to the next help + buffer (if there is one). Similarly, if you are in a normal + (non-help) buffer, this takes you to the next normal buffer. + This is so that if you have invoked help, it doesn't get in + the way when you're browsing code/text buffers. The next three + commands also work like this. + + *:sbn* *:sbnext* +:[N]sbn[ext] [N] + Split window and go to [N]th next buffer in buffer list. + Wraps around the end of the buffer list. Uses 'switchbuf' + +:[N]bN[ext][!] [N] *:bN* *:bNext* *:bp* *:bprevious* *E88* +:[N]bp[revious][!] [N] + Go to [N]th previous buffer in buffer list. [N] defaults to + one. Wraps around the start of the buffer list. + See |:buffer-!| for [!] and 'switchbuf'. + +:[N]sbN[ext] [N] *:sbN* *:sbNext* *:sbp* *:sbprevious* +:[N]sbp[revious] [N] + Split window and go to [N]th previous buffer in buffer list. + Wraps around the start of the buffer list. + Uses 'switchbuf'. + + *:br* *:brewind* +:br[ewind][!] Go to first buffer in buffer list. If the buffer list is + empty, go to the first unlisted buffer. + See |:buffer-!| for [!]. + + *:bf* *:bfirst* +:bf[irst] Same as ":brewind". + + *:sbr* *:sbrewind* +:sbr[ewind] Split window and go to first buffer in buffer list. If the + buffer list is empty, go to the first unlisted buffer. + Respects the 'switchbuf' option. + + *:sbf* *:sbfirst* +:sbf[irst] Same as ":sbrewind". + + *:bl* *:blast* +:bl[ast][!] Go to last buffer in buffer list. If the buffer list is + empty, go to the last unlisted buffer. + See |:buffer-!| for [!]. + + *:sbl* *:sblast* +:sbl[ast] Split window and go to last buffer in buffer list. If the + buffer list is empty, go to the last unlisted buffer. + Respects 'switchbuf' option. + +:[N]bm[odified][!] [N] *:bm* *:bmodified* *E84* + Go to [N]th next modified buffer. Note: this command also + finds unlisted buffers. If there is no modified buffer the + command fails. + +:[N]sbm[odified] [N] *:sbm* *:sbmodified* + Split window and go to [N]th next modified buffer. + Respects 'switchbuf' option. + Note: this command also finds buffers not in the buffer list. + +:[N]unh[ide] [N] *:unh* *:unhide* *:sun* *:sunhide* +:[N]sun[hide] [N] + Rearrange the screen to open one window for each loaded buffer + in the buffer list. When a count is given, this is the + maximum number of windows to open. + +:[N]ba[ll] [N] *:ba* *:ball* *:sba* *:sball* +:[N]sba[ll] [N] Rearrange the screen to open one window for each buffer in + the buffer list. When a count is given, this is the maximum + number of windows to open. 'winheight' also limits the number + of windows opened ('winwidth' if |:vertical| was prepended). + Buf/Win Enter/Leave autocommands are not executed for the new + windows here, that's only done when they are really entered. + +Note: All the commands above that start editing another buffer, keep the +'readonly' flag as it was. This differs from the ":edit" command, which sets +the 'readonly' flag each time the file is read. + +============================================================================== +12. Special kinds of buffers *special-buffers* + +Instead of containing the text of a file, buffers can also be used for other +purposes. A few options can be set to change the behavior of a buffer: + 'bufhidden' what happens when the buffer is no longer displayed + in a window. + 'buftype' what kind of a buffer this is + 'swapfile' whether the buffer will have a swap file + 'buflisted' buffer shows up in the buffer list + +A few useful kinds of a buffer: + +quickfix Used to contain the error list. See |:cwindow|. This command + sets the 'buftype' option to "quickfix". You are not supposed + to change this! 'swapfile' is off. + +help Contains a help file. Will only be created with the |:help| + command. The flag that indicates a help buffer is internal + and can't be changed. The 'buflisted' option will be reset + for a help buffer. + +directory Displays directory contents. Used by the |file-explorer| + plugin. The buffer is created with these settings: > + :set buftype=nowrite + :set bufhidden=delete + :set noswapfile +< The buffer name is the name of the directory and is adjusted + when using the |:cd| command. + +scratch Contains text that can be discarded at any time. It is kept + when closing the window, it must be deleted explicitly. + Settings: > + :set buftype=nofile + :set bufhidden=hide + :set noswapfile +< The buffer name can be used to identify the buffer. + + *unlisted-buffer* +unlisted The buffer is not in the buffer list. It is not used for + normal editing, but to show a help file, remember a file name + or marks. The ":bdelete" command will also set this option, + thus it doesn't completely delete the buffer. Settings: > + :set nobuflisted +< + + vim:tw=78:ts=8:ft=help:norl: |