*builtin.txt* Nvim VIM REFERENCE MANUAL by Bram Moolenaar Builtin functions *builtin-functions* 1. Overview |builtin-function-list| 2. Details |builtin-function-details| 3. Matching a pattern in a String |string-match| ============================================================================== 1. Overview *builtin-function-list* Use CTRL-] on the function name to jump to the full explanation. USAGE RESULT DESCRIPTION ~ abs({expr}) Float or Number absolute value of {expr} acos({expr}) Float arc cosine of {expr} add({object}, {item}) List/Blob append {item} to {object} and({expr}, {expr}) Number bitwise AND api_info() Dict api metadata append({lnum}, {text}) Number append {text} below line {lnum} appendbufline({expr}, {lnum}, {text}) Number append {text} below line {lnum} in buffer {expr} argc([{winid}]) Number number of files in the argument list argidx() Number current index in the argument list arglistid([{winnr} [, {tabnr}]]) Number argument list id argv({nr} [, {winid}]) String {nr} entry of the argument list argv([-1, {winid}]) List the argument list asin({expr}) Float arc sine of {expr} assert_beeps({cmd}) Number assert {cmd} causes a beep assert_equal({exp}, {act} [, {msg}]) Number assert {exp} is equal to {act} assert_equalfile({fname-one}, {fname-two} [, {msg}]) Number assert file contents are equal assert_exception({error} [, {msg}]) Number assert {error} is in v:exception assert_fails({cmd} [, {error}]) Number assert {cmd} fails assert_false({actual} [, {msg}]) Number assert {actual} is false assert_inrange({lower}, {upper}, {actual} [, {msg}]) Number assert {actual} is inside the range assert_match({pat}, {text} [, {msg}]) Number assert {pat} matches {text} assert_nobeep({cmd}) Number assert {cmd} does not cause a beep assert_notequal({exp}, {act} [, {msg}]) Number assert {exp} is not equal {act} assert_notmatch({pat}, {text} [, {msg}]) Number assert {pat} not matches {text} assert_report({msg}) Number report a test failure assert_true({actual} [, {msg}]) Number assert {actual} is true atan({expr}) Float arc tangent of {expr} atan2({expr1}, {expr2}) Float arc tangent of {expr1} / {expr2} browse({save}, {title}, {initdir}, {default}) String put up a file requester browsedir({title}, {initdir}) String put up a directory requester bufadd({name}) Number add a buffer to the buffer list bufexists({expr}) Number |TRUE| if buffer {expr} exists buflisted({expr}) Number |TRUE| if buffer {expr} is listed bufload({expr}) Number load buffer {expr} if not loaded yet bufloaded({expr}) Number |TRUE| if buffer {expr} is loaded bufname([{expr}]) String Name of the buffer {expr} bufnr([{expr} [, {create}]]) Number Number of the buffer {expr} bufwinid({expr}) Number |window-ID| of buffer {expr} bufwinnr({expr}) Number window number of buffer {expr} byte2line({byte}) Number line number at byte count {byte} byteidx({expr}, {nr}) Number byte index of {nr}'th char in {expr} byteidxcomp({expr}, {nr}) Number byte index of {nr}'th char in {expr} call({func}, {arglist} [, {dict}]) any call {func} with arguments {arglist} ceil({expr}) Float round {expr} up changenr() Number current change number chanclose({id} [, {stream}]) Number Closes a channel or one of its streams chansend({id}, {data}) Number Writes {data} to channel char2nr({expr} [, {utf8}]) Number ASCII/UTF-8 value of first char in {expr} charcol({expr}) Number column number of cursor or mark charidx({string}, {idx} [, {countcc}]) Number char index of byte {idx} in {string} chdir({dir}) String change current working directory cindent({lnum}) Number C indent for line {lnum} clearmatches([{win}]) none clear all matches col({expr}) Number column byte index of cursor or mark complete({startcol}, {matches}) none set Insert mode completion complete_add({expr}) Number add completion match complete_check() Number check for key typed during completion complete_info([{what}]) Dict get current completion information confirm({msg} [, {choices} [, {default} [, {type}]]]) Number number of choice picked by user copy({expr}) any make a shallow copy of {expr} cos({expr}) Float cosine of {expr} cosh({expr}) Float hyperbolic cosine of {expr} count({comp}, {expr} [, {ic} [, {start}]]) Number count how many {expr} are in {comp} cscope_connection([{num}, {dbpath} [, {prepend}]]) Number checks existence of cscope connection ctxget([{index}]) Dict return the |context| dict at {index} ctxpop() none pop and restore |context| from the |context-stack| ctxpush([{types}]) none push the current |context| to the |context-stack| ctxset({context} [, {index}]) none set |context| at {index} ctxsize() Number return |context-stack| size cursor({lnum}, {col} [, {off}]) Number move cursor to {lnum}, {col}, {off} cursor({list}) Number move cursor to position in {list} debugbreak({pid}) Number interrupt process being debugged deepcopy({expr} [, {noref}]) any make a full copy of {expr} delete({fname} [, {flags}]) Number delete the file or directory {fname} deletebufline({buf}, {first} [, {last}]) Number delete lines from buffer {buf} dictwatcheradd({dict}, {pattern}, {callback}) Start watching a dictionary dictwatcherdel({dict}, {pattern}, {callback}) Stop watching a dictionary did_filetype() Number |TRUE| if FileType autocommand event used diff_filler({lnum}) Number diff filler lines about {lnum} diff_hlID({lnum}, {col}) Number diff highlighting at {lnum}/{col} digraph_get({chars}) String get the digraph of {chars} digraph_getlist([{listall}]) List get all |digraph|s digraph_set({chars}, {digraph}) Boolean register |digraph| digraph_setlist({digraphlist}) Boolean register multiple |digraph|s empty({expr}) Number |TRUE| if {expr} is empty environ() Dict return environment variables escape({string}, {chars}) String escape {chars} in {string} with '\' eval({string}) any evaluate {string} into its value eventhandler() Number |TRUE| if inside an event handler executable({expr}) Number 1 if executable {expr} exists execute({command}) String execute and capture output of {command} exepath({expr}) String full path of the command {expr} exists({expr}) Number |TRUE| if {expr} exists extend({expr1}, {expr2} [, {expr3}]) List/Dict insert items of {expr2} into {expr1} exp({expr}) Float exponential of {expr} expand({expr} [, {nosuf} [, {list}]]) any expand special keywords in {expr} expandcmd({expr}) String expand {expr} like with `:edit` feedkeys({string} [, {mode}]) Number add key sequence to typeahead buffer filereadable({file}) Number |TRUE| if {file} is a readable file filewritable({file}) Number |TRUE| if {file} is a writable file filter({expr1}, {expr2}) List/Dict remove items from {expr1} where {expr2} is 0 finddir({name} [, {path} [, {count}]]) String find directory {name} in {path} findfile({name} [, {path} [, {count}]]) String find file {name} in {path} flatten({list} [, {maxdepth}]) List flatten {list} up to {maxdepth} levels float2nr({expr}) Number convert Float {expr} to a Number floor({expr}) Float round {expr} down fmod({expr1}, {expr2}) Float remainder of {expr1} / {expr2} fnameescape({fname}) String escape special characters in {fname} fnamemodify({fname}, {mods}) String modify file name foldclosed({lnum}) Number first line of fold at {lnum} if closed foldclosedend({lnum}) Number last line of fold at {lnum} if closed foldlevel({lnum}) Number fold level at {lnum} foldtext() String line displayed for closed fold foldtextresult({lnum}) String text for closed fold at {lnum} fullcommand({name}) String get full command from {name} funcref({name} [, {arglist}] [, {dict}]) Funcref reference to function {name} function({name} [, {arglist}] [, {dict}]) Funcref named reference to function {name} garbagecollect([{atexit}]) none free memory, breaking cyclic references get({list}, {idx} [, {def}]) any get item {idx} from {list} or {def} get({dict}, {key} [, {def}]) any get item {key} from {dict} or {def} get({func}, {what}) any get property of funcref/partial {func} getbufinfo([{buf}]) List information about buffers getbufline({buf}, {lnum} [, {end}]) List lines {lnum} to {end} of buffer {buf} getbufvar({buf}, {varname} [, {def}]) any variable {varname} in buffer {buf} getchangelist([{buf}]) List list of change list items getchar([expr]) Number or String get one character from the user getcharmod() Number modifiers for the last typed character getcharpos({expr}) List position of cursor, mark, etc. getcharsearch() Dict last character search getcharstr([expr]) String get one character from the user getcmdcompltype() String return the type of the current command-line completion getcmdline() String return the current command-line getcmdpos() Number return cursor position in command-line getcmdscreenpos() Number return cursor screen position in command-line getcmdtype() String return current command-line type getcmdwintype() String return current command-line window type getcompletion({pat}, {type} [, {filtered}]) List list of cmdline completion matches getcurpos([{winnr}]) List position of the cursor getcursorcharpos([{winnr}]) List character position of the cursor getcwd([{winnr} [, {tabnr}]]) String get the current working directory getenv({name}) String return environment variable getfontname([{name}]) String name of font being used getfperm({fname}) String file permissions of file {fname} getfsize({fname}) Number size in bytes of file {fname} getftime({fname}) Number last modification time of file getftype({fname}) String description of type of file {fname} getjumplist([{winnr} [, {tabnr}]]) List list of jump list items getline({lnum}) String line {lnum} of current buffer getline({lnum}, {end}) List lines {lnum} to {end} of current buffer getloclist({nr}) List list of location list items getloclist({nr}, {what}) Dict get specific location list properties getmarklist([{buf}]) List list of global/local marks getmatches([{win}]) List list of current matches getmousepos() Dict last known mouse position getpid() Number process ID of Vim getpos({expr}) List position of cursor, mark, etc. getqflist() List list of quickfix items getqflist({what}) Dict get specific quickfix list properties getreg([{regname} [, 1 [, {list}]]]) String or List contents of a register getreginfo([{regname}]) Dict information about a register getregtype([{regname}]) String type of a register gettabinfo([{expr}]) List list of tab pages gettabvar({nr}, {varname} [, {def}]) any variable {varname} in tab {nr} or {def} gettabwinvar({tabnr}, {winnr}, {name} [, {def}]) any {name} in {winnr} in tab page {tabnr} gettagstack([{nr}]) Dict get the tag stack of window {nr} getwininfo([{winid}]) List list of info about each window getwinpos([{timeout}]) List X and Y coord in pixels of the Vim window getwinposx() Number X coord in pixels of Vim window getwinposy() Number Y coord in pixels of Vim window getwinvar({nr}, {varname} [, {def}]) any variable {varname} in window {nr} glob({expr} [, {nosuf} [, {list} [, {alllinks}]]]) any expand file wildcards in {expr} glob2regpat({expr}) String convert a glob pat into a search pat globpath({path}, {expr} [, {nosuf} [, {list} [, {alllinks}]]]) String do glob({expr}) for all dirs in {path} has({feature}) Number |TRUE| if feature {feature} supported has_key({dict}, {key}) Number |TRUE| if {dict} has entry {key} haslocaldir([{winnr} [, {tabnr}]]) Number |TRUE| if the window executed |:lcd| or the tab executed |:tcd| hasmapto({what} [, {mode} [, {abbr}]]) Number |TRUE| if mapping to {what} exists histadd({history}, {item}) String add an item to a history histdel({history} [, {item}]) String remove an item from a history histget({history} [, {index}]) String get the item {index} from a history histnr({history}) Number highest index of a history hlexists({name}) Number |TRUE| if highlight group {name} exists hlID({name}) Number syntax ID of highlight group {name} hostname() String name of the machine Vim is running on iconv({expr}, {from}, {to}) String convert encoding of {expr} indent({lnum}) Number indent of line {lnum} index({object}, {expr} [, {start} [, {ic}]]) Number index in {object} where {expr} appears input({prompt} [, {text} [, {completion}]]) String get input from the user inputlist({textlist}) Number let the user pick from a choice list inputrestore() Number restore typeahead inputsave() Number save and clear typeahead inputsecret({prompt} [, {text}]) String like input() but hiding the text insert({object}, {item} [, {idx}]) List insert {item} in {object} [before {idx}] interrupt() none interrupt script execution invert({expr}) Number bitwise invert isdirectory({directory}) Number |TRUE| if {directory} is a directory isinf({expr}) Number determine if {expr} is infinity value (positive or negative) islocked({expr}) Number |TRUE| if {expr} is locked isnan({expr}) Number |TRUE| if {expr} is NaN id({expr}) String identifier of the container items({dict}) List key-value pairs in {dict} jobpid({id}) Number Returns pid of a job. jobresize({id}, {width}, {height}) Number Resize pseudo terminal window of a job jobstart({cmd} [, {opts}]) Number Spawns {cmd} as a job jobstop({id}) Number Stops a job jobwait({ids} [, {timeout}]) Number Wait for a set of jobs join({list} [, {sep}]) String join {list} items into one String json_decode({expr}) any Convert {expr} from JSON json_encode({expr}) String Convert {expr} to JSON keys({dict}) List keys in {dict} len({expr}) Number the length of {expr} libcall({lib}, {func}, {arg}) String call {func} in library {lib} with {arg} libcallnr({lib}, {func}, {arg}) Number idem, but return a Number line({expr} [, {winid}]) Number line nr of cursor, last line or mark line2byte({lnum}) Number byte count of line {lnum} lispindent({lnum}) Number Lisp indent for line {lnum} list2str({list} [, {utf8}]) String turn numbers in {list} into a String localtime() Number current time log({expr}) Float natural logarithm (base e) of {expr} log10({expr}) Float logarithm of Float {expr} to base 10 luaeval({expr} [, {expr}]) any evaluate |Lua| expression map({expr1}, {expr2}) List/Dict change each item in {expr1} to {expr} maparg({name} [, {mode} [, {abbr} [, {dict}]]]) String or Dict rhs of mapping {name} in mode {mode} mapcheck({name} [, {mode} [, {abbr}]]) String check for mappings matching {name} match({expr}, {pat} [, {start} [, {count}]]) Number position where {pat} matches in {expr} matchadd({group}, {pattern} [, {priority} [, {id} [, {dict}]]]) Number highlight {pattern} with {group} matchaddpos({group}, {pos} [, {priority} [, {id} [, {dict}]]]) Number highlight positions with {group} matcharg({nr}) List arguments of |:match| matchdelete({id} [, {win}]) Number delete match identified by {id} matchend({expr}, {pat} [, {start} [, {count}]]) Number position where {pat} ends in {expr} matchfuzzy({list}, {str} [, {dict}]) List fuzzy match {str} in {list} matchfuzzypos({list}, {str} [, {dict}]) List fuzzy match {str} in {list} matchlist({expr}, {pat} [, {start} [, {count}]]) List match and submatches of {pat} in {expr} matchstr({expr}, {pat} [, {start} [, {count}]]) String {count}'th match of {pat} in {expr} matchstrpos({expr}, {pat} [, {start} [, {count}]]) List {count}'th match of {pat} in {expr} max({expr}) Number maximum value of items in {expr} menu_get({path} [, {modes}]) List description of |menus| matched by {path} min({expr}) Number minimum value of items in {expr} mkdir({name} [, {path} [, {prot}]]) Number create directory {name} mode([expr]) String current editing mode msgpackdump({list} [, {type}]) List/Blob dump objects to msgpack msgpackparse({data}) List parse msgpack to a list of objects nextnonblank({lnum}) Number line nr of non-blank line >= {lnum} nr2char({expr} [, {utf8}]) String single char with ASCII/UTF-8 value {expr} nvim_...({args}...) any call nvim |api| functions or({expr}, {expr}) Number bitwise OR pathshorten({expr} [, {len}]) String shorten directory names in a path perleval({expr}) any evaluate |perl| expression pow({x}, {y}) Float {x} to the power of {y} prevnonblank({lnum}) Number line nr of non-blank line <= {lnum} printf({fmt}, {expr1}...) String format text prompt_getprompt({buf}) String get prompt text prompt_setcallback({buf}, {expr}) none set prompt callback function prompt_setinterrupt({buf}, {text}) none set prompt interrupt function prompt_setprompt({buf}, {text}) none set prompt text pum_getpos() Dict position and size of pum if visible pumvisible() Number whether popup menu is visible pyeval({expr}) any evaluate |Python| expression py3eval({expr}) any evaluate |python3| expression pyxeval({expr}) any evaluate |python_x| expression rand([{expr}]) Number get pseudo-random number range({expr} [, {max} [, {stride}]]) List items from {expr} to {max} readdir({dir} [, {expr}]) List file names in {dir} selected by {expr} readfile({fname} [, {type} [, {max}]]) List get list of lines from file {fname} reduce({object}, {func} [, {initial}]) any reduce {object} using {func} reg_executing() String get the executing register name reg_recorded() String get the last recorded register name reg_recording() String get the recording register name reltime([{start} [, {end}]]) List get time value reltimefloat({time}) Float turn the time value into a Float reltimestr({time}) String turn time value into a String remove({list}, {idx} [, {end}]) any/List remove items {idx}-{end} from {list} remove({blob}, {idx} [, {end}]) Number/Blob remove bytes {idx}-{end} from {blob} remove({dict}, {key}) any remove entry {key} from {dict} rename({from}, {to}) Number rename (move) file from {from} to {to} repeat({expr}, {count}) String repeat {expr} {count} times resolve({filename}) String get filename a shortcut points to reverse({list}) List reverse {list} in-place round({expr}) Float round off {expr} rubyeval({expr}) any evaluate |Ruby| expression rpcnotify({channel}, {event} [, {args}...]) Sends an |RPC| notification to {channel} rpcrequest({channel}, {method} [, {args}...]) Sends an |RPC| request to {channel} screenattr({row}, {col}) Number attribute at screen position screenchar({row}, {col}) Number character at screen position screenchars({row}, {col}) List List of characters at screen position screencol() Number current cursor column screenpos({winid}, {lnum}, {col}) Dict screen row and col of a text character screenrow() Number current cursor row screenstring({row}, {col}) String characters at screen position search({pattern} [, {flags} [, {stopline} [, {timeout} [, {skip}]]]]) Number search for {pattern} searchcount([{options}]) Dict Get or update the last search count searchdecl({name} [, {global} [, {thisblock}]]) Number search for variable declaration searchpair({start}, {middle}, {end} [, {flags} [, {skip} [...]]]) Number search for other end of start/end pair searchpairpos({start}, {middle}, {end} [, {flags} [, {skip} [...]]]) List search for other end of start/end pair searchpos({pattern} [, {flags} [, {stopline} [, {timeout} [, {skip}]]]]) List search for {pattern} serverlist() String get a list of available servers setbufline({expr}, {lnum}, {text}) Number set line {lnum} to {text} in buffer {expr} setbufvar({buf}, {varname}, {val}) set {varname} in buffer {buf} to {val} setcharpos({expr}, {list}) Number set the {expr} position to {list} setcharsearch({dict}) Dict set character search from {dict} setcmdpos({pos}) Number set cursor position in command-line setcursorcharpos({list}) Number move cursor to position in {list} setenv({name}, {val}) none set environment variable setfperm({fname}, {mode} Number set {fname} file permissions to {mode} setline({lnum}, {line}) Number set line {lnum} to {line} setloclist({nr}, {list} [, {action}]) Number modify location list using {list} setloclist({nr}, {list}, {action}, {what}) Number modify specific location list props setmatches({list} [, {win}]) Number restore a list of matches setpos({expr}, {list}) Number set the {expr} position to {list} setqflist({list} [, {action}]) Number modify quickfix list using {list} setqflist({list}, {action}, {what}) Number modify specific quickfix list props setreg({n}, {v} [, {opt}]) Number set register to value and type settabvar({nr}, {varname}, {val}) set {varname} in tab page {nr} to {val} settabwinvar({tabnr}, {winnr}, {varname}, {val}) set {varname} in window {winnr} in tab page {tabnr} to {val} settagstack({nr}, {dict} [, {action}]) Number modify tag stack using {dict} setwinvar({nr}, {varname}, {val}) set {varname} in window {nr} to {val} sha256({string}) String SHA256 checksum of {string} shellescape({string} [, {special}]) String escape {string} for use as shell command argument shiftwidth([{col}]) Number effective value of 'shiftwidth' sign_define({name} [, {dict}]) Number define or update a sign sign_define({list}) List define or update a list of signs sign_getdefined([{name}]) List get a list of defined signs sign_getplaced([{buf} [, {dict}]]) List get a list of placed signs sign_jump({id}, {group}, {buf}) Number jump to a sign sign_place({id}, {group}, {name}, {buf} [, {dict}]) Number place a sign sign_placelist({list}) List place a list of signs sign_undefine([{name}]) Number undefine a sign sign_undefine({list}) List undefine a list of signs sign_unplace({group} [, {dict}]) Number unplace a sign sign_unplacelist({list}) List unplace a list of signs simplify({filename}) String simplify filename as much as possible sin({expr}) Float sine of {expr} sinh({expr}) Float hyperbolic sine of {expr} sockconnect({mode}, {address} [, {opts}]) Number Connects to socket sort({list} [, {func} [, {dict}]]) List sort {list}, using {func} to compare soundfold({word}) String sound-fold {word} spellbadword() String badly spelled word at cursor spellsuggest({word} [, {max} [, {capital}]]) List spelling suggestions split({expr} [, {pat} [, {keepempty}]]) List make |List| from {pat} separated {expr} sqrt({expr}) Float square root of {expr} srand([{expr}]) List get seed for |rand()| stdioopen({dict}) Number open stdio in a headless instance. stdpath({what}) String/List returns the standard path(s) for {what} str2float({expr} [, {quoted}]) Float convert String to Float str2list({expr} [, {utf8}]) List convert each character of {expr} to ASCII/UTF-8 value str2nr({expr} [, {base} [, {quoted}]]) Number convert String to Number strchars({expr} [, {skipcc}]) Number character length of the String {expr} strcharpart({str}, {start} [, {len}]) String {len} characters of {str} at character {start} strdisplaywidth({expr} [, {col}]) Number display length of the String {expr} strftime({format} [, {time}]) String format time with a specified format strgetchar({str}, {index}) Number get char {index} from {str} stridx({haystack}, {needle} [, {start}]) Number index of {needle} in {haystack} string({expr}) String String representation of {expr} value strlen({expr}) Number length of the String {expr} strpart({str}, {start} [, {len} [, {chars}]]) String {len} bytes/chars of {str} at byte {start} strptime({format}, {timestring}) Number Convert {timestring} to unix timestamp strridx({haystack}, {needle} [, {start}]) Number last index of {needle} in {haystack} strtrans({expr}) String translate string to make it printable strwidth({expr}) Number display cell length of the String {expr} submatch({nr} [, {list}]) String or List specific match in ":s" or substitute() substitute({expr}, {pat}, {sub}, {flags}) String all {pat} in {expr} replaced with {sub} swapinfo({fname}) Dict information about swap file {fname} swapname({buf}) String swap file of buffer {buf} synID({lnum}, {col}, {trans}) Number syntax ID at {lnum} and {col} synIDattr({synID}, {what} [, {mode}]) String attribute {what} of syntax ID {synID} synIDtrans({synID}) Number translated syntax ID of {synID} synconcealed({lnum}, {col}) List info about concealing synstack({lnum}, {col}) List stack of syntax IDs at {lnum} and {col} system({cmd} [, {input}]) String output of shell command/filter {cmd} systemlist({cmd} [, {input}]) List output of shell command/filter {cmd} tabpagebuflist([{arg}]) List list of buffer numbers in tab page tabpagenr([{arg}]) Number number of current or last tab page tabpagewinnr({tabarg} [, {arg}]) Number number of current window in tab page taglist({expr} [, {filename}]) List list of tags matching {expr} tagfiles() List tags files used tan({expr}) Float tangent of {expr} tanh({expr}) Float hyperbolic tangent of {expr} tempname() String name for a temporary file test_garbagecollect_now() none free memory right now for testing timer_info([{id}]) List information about timers timer_pause({id}, {pause}) none pause or unpause a timer timer_start({time}, {callback} [, {options}]) Number create a timer timer_stop({timer}) none stop a timer timer_stopall() none stop all timers tolower({expr}) String the String {expr} switched to lowercase toupper({expr}) String the String {expr} switched to uppercase tr({src}, {fromstr}, {tostr}) String translate chars of {src} in {fromstr} to chars in {tostr} trim({text} [, {mask} [, {dir}]]) String trim characters in {mask} from {text} trunc({expr}) Float truncate Float {expr} type({name}) Number type of variable {name} undofile({name}) String undo file name for {name} undotree() List undo file tree uniq({list} [, {func} [, {dict}]]) List remove adjacent duplicates from a list values({dict}) List values in {dict} virtcol({expr}) Number screen column of cursor or mark visualmode([expr]) String last visual mode used wait({timeout}, {condition} [, {interval}]) Number Wait until {condition} is satisfied wildmenumode() Number whether 'wildmenu' mode is active win_execute({id}, {command} [, {silent}]) String execute {command} in window {id} win_findbuf({bufnr}) List find windows containing {bufnr} win_getid([{win} [, {tab}]]) Number get |window-ID| for {win} in {tab} win_gettype([{nr}]) String type of window {nr} win_gotoid({expr}) Number go to |window-ID| {expr} win_id2tabwin({expr}) List get tab and window nr from |window-ID| win_id2win({expr}) Number get window nr from |window-ID| win_move_separator({nr}) Number move window vertical separator win_move_statusline({nr}) Number move window status line win_screenpos({nr}) List get screen position of window {nr} win_splitmove({nr}, {target} [, {options}]) Number move window {nr} to split of {target} winbufnr({nr}) Number buffer number of window {nr} wincol() Number window column of the cursor windowsversion() String MS-Windows OS version winheight({nr}) Number height of window {nr} winlayout([{tabnr}]) List layout of windows in tab {tabnr} winline() Number window line of the cursor winnr([{expr}]) Number number of current window winrestcmd() String returns command to restore window sizes winrestview({dict}) none restore view of current window winsaveview() Dict save view of current window winwidth({nr}) Number width of window {nr} wordcount() Dict get byte/char/word statistics writefile({object}, {fname} [, {flags}]) Number write |Blob| or |List| of lines to file xor({expr}, {expr}) Number bitwise XOR ============================================================================== 2. Details *builtin-function-details* Not all functions are here, some have been moved to a help file covering the specific functionality. abs({expr}) *abs()* Return the absolute value of {expr}. When {expr} evaluates to a |Float| abs() returns a |Float|. When {expr} can be converted to a |Number| abs() returns a |Number|. Otherwise abs() gives an error message and returns -1. Examples: > echo abs(1.456) < 1.456 > echo abs(-5.456) < 5.456 > echo abs(-4) < 4 Can also be used as a |method|: > Compute()->abs() acos({expr}) *acos()* Return the arc cosine of {expr} measured in radians, as a |Float| in the range of [0, pi]. {expr} must evaluate to a |Float| or a |Number| in the range [-1, 1]. Returns NaN if {expr} is outside the range [-1, 1]. Returns 0.0 if {expr} is not a |Float| or a |Number|. Examples: > :echo acos(0) < 1.570796 > :echo acos(-0.5) < 2.094395 Can also be used as a |method|: > Compute()->acos() add({object}, {expr}) *add()* Append the item {expr} to |List| or |Blob| {object}. Returns the resulting |List| or |Blob|. Examples: > :let alist = add([1, 2, 3], item) :call add(mylist, "woodstock") < Note that when {expr} is a |List| it is appended as a single item. Use |extend()| to concatenate |Lists|. When {object} is a |Blob| then {expr} must be a number. Use |insert()| to add an item at another position. Returns 1 if {object} is not a |List| or a |Blob|. Can also be used as a |method|: > mylist->add(val1)->add(val2) and({expr}, {expr}) *and()* Bitwise AND on the two arguments. The arguments are converted to a number. A List, Dict or Float argument causes an error. Example: > :let flag = and(bits, 0x80) < Can also be used as a |method|: > :let flag = bits->and(0x80) api_info() *api_info()* Returns Dictionary of |api-metadata|. View it in a nice human-readable format: > :lua print(vim.inspect(vim.fn.api_info())) append({lnum}, {text}) *append()* When {text} is a |List|: Append each item of the |List| as a text line below line {lnum} in the current buffer. Otherwise append {text} as one text line below line {lnum} in the current buffer. {lnum} can be zero to insert a line before the first one. {lnum} is used like with |getline()|. Returns 1 for failure ({lnum} out of range or out of memory), 0 for success. Example: > :let failed = append(line('$'), "# THE END") :let failed = append(0, ["Chapter 1", "the beginning"]) < Can also be used as a |method| after a List: > mylist->append(lnum) appendbufline({buf}, {lnum}, {text}) *appendbufline()* Like |append()| but append the text in buffer {expr}. This function works only for loaded buffers. First call |bufload()| if needed. For the use of {buf}, see |bufname()|. {lnum} is used like with |append()|. Note that using |line()| would use the current buffer, not the one appending to. Use "$" to append at the end of the buffer. On success 0 is returned, on failure 1 is returned. If {buf} is not a valid buffer or {lnum} is not valid, an error message is given. Example: > :let failed = appendbufline(13, 0, "# THE START") < Can also be used as a |method| after a List: > mylist->appendbufline(buf, lnum) argc([{winid}]) *argc()* The result is the number of files in the argument list. See |arglist|. If {winid} is not supplied, the argument list of the current window is used. If {winid} is -1, the global argument list is used. Otherwise {winid} specifies the window of which the argument list is used: either the window number or the window ID. Returns -1 if the {winid} argument is invalid. *argidx()* argidx() The result is the current index in the argument list. 0 is the first file. argc() - 1 is the last one. See |arglist|. *arglistid()* arglistid([{winnr} [, {tabnr}]]) Return the argument list ID. This is a number which identifies the argument list being used. Zero is used for the global argument list. See |arglist|. Returns -1 if the arguments are invalid. Without arguments use the current window. With {winnr} only use this window in the current tab page. With {winnr} and {tabnr} use the window in the specified tab page. {winnr} can be the window number or the |window-ID|. *argv()* argv([{nr} [, {winid}]]) The result is the {nr}th file in the argument list. See |arglist|. "argv(0)" is the first one. Example: > :let i = 0 :while i < argc() : let f = escape(fnameescape(argv(i)), '.') : exe 'amenu Arg.' .. f .. ' :e ' .. f .. '' : let i = i + 1 :endwhile < Without the {nr} argument, or when {nr} is -1, a |List| with the whole |arglist| is returned. The {winid} argument specifies the window ID, see |argc()|. For the Vim command line arguments see |v:argv|. Returns an empty string if {nr}th argument is not present in the argument list. Returns an empty List if the {winid} argument is invalid. asin({expr}) *asin()* Return the arc sine of {expr} measured in radians, as a |Float| in the range of [-pi/2, pi/2]. {expr} must evaluate to a |Float| or a |Number| in the range [-1, 1]. Returns NaN if {expr} is outside the range [-1, 1]. Returns 0.0 if {expr} is not a |Float| or a |Number|. Examples: > :echo asin(0.8) < 0.927295 > :echo asin(-0.5) < -0.523599 Can also be used as a |method|: > Compute()->asin() assert_ functions are documented here: |assert-functions-details| atan({expr}) *atan()* Return the principal value of the arc tangent of {expr}, in the range [-pi/2, +pi/2] radians, as a |Float|. {expr} must evaluate to a |Float| or a |Number|. Returns 0.0 if {expr} is not a |Float| or a |Number|. Examples: > :echo atan(100) < 1.560797 > :echo atan(-4.01) < -1.326405 Can also be used as a |method|: > Compute()->atan() atan2({expr1}, {expr2}) *atan2()* Return the arc tangent of {expr1} / {expr2}, measured in radians, as a |Float| in the range [-pi, pi]. {expr1} and {expr2} must evaluate to a |Float| or a |Number|. Returns 0.0 if {expr1} or {expr2} is not a |Float| or a |Number|. Examples: > :echo atan2(-1, 1) < -0.785398 > :echo atan2(1, -1) < 2.356194 Can also be used as a |method|: > Compute()->atan2(1) *browse()* browse({save}, {title}, {initdir}, {default}) Put up a file requester. This only works when "has("browse")" returns |TRUE| (only in some GUI versions). The input fields are: {save} when |TRUE|, select file to write {title} title for the requester {initdir} directory to start browsing in {default} default file name An empty string is returned when the "Cancel" button is hit, something went wrong, or browsing is not possible. *browsedir()* browsedir({title}, {initdir}) Put up a directory requester. This only works when "has("browse")" returns |TRUE| (only in some GUI versions). On systems where a directory browser is not supported a file browser is used. In that case: select a file in the directory to be used. The input fields are: {title} title for the requester {initdir} directory to start browsing in When the "Cancel" button is hit, something went wrong, or browsing is not possible, an empty string is returned. bufadd({name}) *bufadd()* Add a buffer to the buffer list with String {name}. If a buffer for file {name} already exists, return that buffer number. Otherwise return the buffer number of the newly created buffer. When {name} is an empty string then a new buffer is always created. The buffer will not have 'buflisted' set and not be loaded yet. To add some text to the buffer use this: > let bufnr = bufadd('someName') call bufload(bufnr) call setbufline(bufnr, 1, ['some', 'text']) < Returns 0 on error. Can also be used as a |method|: > let bufnr = 'somename'->bufadd() bufexists({buf}) *bufexists()* The result is a Number, which is |TRUE| if a buffer called {buf} exists. If the {buf} argument is a number, buffer numbers are used. Number zero is the alternate buffer for the current window. If the {buf} argument is a string it must match a buffer name exactly. The name can be: - Relative to the current directory. - A full path. - The name of a buffer with 'buftype' set to "nofile". - A URL name. Unlisted buffers will be found. Note that help files are listed by their short name in the output of |:buffers|, but bufexists() requires using their long name to be able to find them. bufexists() may report a buffer exists, but to use the name with a |:buffer| command you may need to use |expand()|. Esp for MS-Windows 8.3 names in the form "c:\DOCUME~1" Use "bufexists(0)" to test for the existence of an alternate file name. Can also be used as a |method|: > let exists = 'somename'->bufexists() buflisted({buf}) *buflisted()* The result is a Number, which is |TRUE| if a buffer called {buf} exists and is listed (has the 'buflisted' option set). The {buf} argument is used like with |bufexists()|. Can also be used as a |method|: > let listed = 'somename'->buflisted() bufload({buf}) *bufload()* Ensure the buffer {buf} is loaded. When the buffer name refers to an existing file then the file is read. Otherwise the buffer will be empty. If the buffer was already loaded then there is no change. If there is an existing swap file for the file of the buffer, there will be no dialog, the buffer will be loaded anyway. The {buf} argument is used like with |bufexists()|. Can also be used as a |method|: > eval 'somename'->bufload() bufloaded({buf}) *bufloaded()* The result is a Number, which is |TRUE| if a buffer called {buf} exists and is loaded (shown in a window or hidden). The {buf} argument is used like with |bufexists()|. Can also be used as a |method|: > let loaded = 'somename'->bufloaded() bufname([{buf}]) *bufname()* The result is the name of a buffer. Mostly as it is displayed by the `:ls` command, but not using special names such as "[No Name]". If {buf} is omitted the current buffer is used. If {buf} is a Number, that buffer number's name is given. Number zero is the alternate buffer for the current window. If {buf} is a String, it is used as a |file-pattern| to match with the buffer names. This is always done like 'magic' is set and 'cpoptions' is empty. When there is more than one match an empty string is returned. "" or "%" can be used for the current buffer, "#" for the alternate buffer. A full match is preferred, otherwise a match at the start, end or middle of the buffer name is accepted. If you only want a full match then put "^" at the start and "$" at the end of the pattern. Listed buffers are found first. If there is a single match with a listed buffer, that one is returned. Next unlisted buffers are searched for. If the {buf} is a String, but you want to use it as a buffer number, force it to be a Number by adding zero to it: > :echo bufname("3" + 0) < Can also be used as a |method|: > echo bufnr->bufname() < If the buffer doesn't exist, or doesn't have a name, an empty string is returned. > bufname("#") alternate buffer name bufname(3) name of buffer 3 bufname("%") name of current buffer bufname("file2") name of buffer where "file2" matches. < *bufnr()* bufnr([{buf} [, {create}]]) The result is the number of a buffer, as it is displayed by the `:ls` command. For the use of {buf}, see |bufname()| above. If the buffer doesn't exist, -1 is returned. Or, if the {create} argument is present and TRUE, a new, unlisted, buffer is created and its number is returned. bufnr("$") is the last buffer: > :let last_buffer = bufnr("$") < The result is a Number, which is the highest buffer number of existing buffers. Note that not all buffers with a smaller number necessarily exist, because ":bwipeout" may have removed them. Use bufexists() to test for the existence of a buffer. Can also be used as a |method|: > echo bufref->bufnr() bufwinid({buf}) *bufwinid()* The result is a Number, which is the |window-ID| of the first window associated with buffer {buf}. For the use of {buf}, see |bufname()| above. If buffer {buf} doesn't exist or there is no such window, -1 is returned. Example: > echo "A window containing buffer 1 is " .. (bufwinid(1)) < Only deals with the current tab page. Can also be used as a |method|: > FindBuffer()->bufwinid() bufwinnr({buf}) *bufwinnr()* Like |bufwinid()| but return the window number instead of the |window-ID|. If buffer {buf} doesn't exist or there is no such window, -1 is returned. Example: > echo "A window containing buffer 1 is " .. (bufwinnr(1)) < The number can be used with |CTRL-W_w| and ":wincmd w" |:wincmd|. Can also be used as a |method|: > FindBuffer()->bufwinnr() byte2line({byte}) *byte2line()* Return the line number that contains the character at byte count {byte} in the current buffer. This includes the end-of-line character, depending on the 'fileformat' option for the current buffer. The first character has byte count one. Also see |line2byte()|, |go| and |:goto|. Returns -1 if the {byte} value is invalid. Can also be used as a |method|: > GetOffset()->byte2line() byteidx({expr}, {nr}) *byteidx()* Return byte index of the {nr}'th character in the String {expr}. Use zero for the first character, it then returns zero. If there are no multibyte characters the returned value is equal to {nr}. Composing characters are not counted separately, their byte length is added to the preceding base character. See |byteidxcomp()| below for counting composing characters separately. Example : > echo matchstr(str, ".", byteidx(str, 3)) < will display the fourth character. Another way to do the same: > let s = strpart(str, byteidx(str, 3)) echo strpart(s, 0, byteidx(s, 1)) < Also see |strgetchar()| and |strcharpart()|. If there are less than {nr} characters -1 is returned. If there are exactly {nr} characters the length of the string in bytes is returned. Can also be used as a |method|: > GetName()->byteidx(idx) byteidxcomp({expr}, {nr}) *byteidxcomp()* Like byteidx(), except that a composing character is counted as a separate character. Example: > let s = 'e' .. nr2char(0x301) echo byteidx(s, 1) echo byteidxcomp(s, 1) echo byteidxcomp(s, 2) < The first and third echo result in 3 ('e' plus composing character is 3 bytes), the second echo results in 1 ('e' is one byte). Can also be used as a |method|: > GetName()->byteidxcomp(idx) call({func}, {arglist} [, {dict}]) *call()* *E699* Call function {func} with the items in |List| {arglist} as arguments. {func} can either be a |Funcref| or the name of a function. a:firstline and a:lastline are set to the cursor line. Returns the return value of the called function. {dict} is for functions with the "dict" attribute. It will be used to set the local variable "self". |Dictionary-function| Can also be used as a |method|: > GetFunc()->call([arg, arg], dict) ceil({expr}) *ceil()* Return the smallest integral value greater than or equal to {expr} as a |Float| (round up). {expr} must evaluate to a |Float| or a |Number|. Examples: > echo ceil(1.456) < 2.0 > echo ceil(-5.456) < -5.0 > echo ceil(4.0) < 4.0 Returns 0.0 if {expr} is not a |Float| or a |Number|. Can also be used as a |method|: > Compute()->ceil() changenr() *changenr()* Return the number of the most recent change. This is the same number as what is displayed with |:undolist| and can be used with the |:undo| command. When a change was made it is the number of that change. After redo it is the number of the redone change. After undo it is one less than the number of the undone change. Returns 0 if the undo list is empty. chanclose({id} [, {stream}]) *chanclose()* Close a channel or a specific stream associated with it. For a job, {stream} can be one of "stdin", "stdout", "stderr" or "rpc" (closes stdin/stdout for a job started with `"rpc":v:true`) If {stream} is omitted, all streams are closed. If the channel is a pty, this will then close the pty master, sending SIGHUP to the job process. For a socket, there is only one stream, and {stream} should be ommited. chansend({id}, {data}) *chansend()* Send data to channel {id}. For a job, it writes it to the stdin of the process. For the stdio channel |channel-stdio|, it writes to Nvim's stdout. Returns the number of bytes written if the write succeeded, 0 otherwise. See |channel-bytes| for more information. {data} may be a string, string convertible, |Blob|, or a list. If {data} is a list, the items will be joined by newlines; any newlines in an item will be sent as NUL. To send a final newline, include a final empty string. Example: > :call chansend(id, ["abc", "123\n456", ""]) < will send "abc123456". chansend() writes raw data, not RPC messages. If the channel was created with `"rpc":v:true` then the channel expects RPC messages, use |rpcnotify()| and |rpcrequest()| instead. char2nr({string} [, {utf8}]) *char2nr()* Return Number value of the first char in {string}. Examples: > char2nr(" ") returns 32 char2nr("ABC") returns 65 char2nr("á") returns 225 char2nr("á"[0]) returns 195 char2nr("\") returns 128 < Non-ASCII characters are always treated as UTF-8 characters. {utf8} is ignored, it exists only for backwards-compatibility. A combining character is a separate character. |nr2char()| does the opposite. Returns 0 if {string} is not a |String|. Can also be used as a |method|: > GetChar()->char2nr() < *charcol()* charcol({expr}) Same as |col()| but returns the character index of the column position given with {expr} instead of the byte position. Example: With the cursor on '세' in line 5 with text "여보세요": > charcol('.') returns 3 col('.') returns 7 < Can also be used as a |method|: > GetPos()->col() < *charidx()* charidx({string}, {idx} [, {countcc}]) Return the character index of the byte at {idx} in {string}. The index of the first character is zero. If there are no multibyte characters the returned value is equal to {idx}. When {countcc} is omitted or |FALSE|, then composing characters are not counted separately, their byte length is added to the preceding base character. When {countcc} is |TRUE|, then composing characters are counted as separate characters. Returns -1 if the arguments are invalid or if {idx} is greater than the index of the last byte in {string}. An error is given if the first argument is not a string, the second argument is not a number or when the third argument is present and is not zero or one. See |byteidx()| and |byteidxcomp()| for getting the byte index from the character index. Examples: > echo charidx('áb́ć', 3) returns 1 echo charidx('áb́ć', 6, 1) returns 4 echo charidx('áb́ć', 16) returns -1 < Can also be used as a |method|: > GetName()->charidx(idx) chdir({dir}) *chdir()* Change the current working directory to {dir}. The scope of the directory change depends on the directory of the current window: - If the current window has a window-local directory (|:lcd|), then changes the window local directory. - Otherwise, if the current tabpage has a local directory (|:tcd|) then changes the tabpage local directory. - Otherwise, changes the global directory. If successful, returns the previous working directory. Pass this to another chdir() to restore the directory. On failure, returns an empty string. Example: > let save_dir = chdir(newdir) if save_dir " ... do some work call chdir(save_dir) endif < cindent({lnum}) *cindent()* Get the amount of indent for line {lnum} according the C indenting rules, as with 'cindent'. The indent is counted in spaces, the value of 'tabstop' is relevant. {lnum} is used just like in |getline()|. When {lnum} is invalid -1 is returned. See |C-indenting|. Can also be used as a |method|: > GetLnum()->cindent() clearmatches([{win}]) *clearmatches()* Clears all matches previously defined for the current window by |matchadd()| and the |:match| commands. If {win} is specified, use the window with this number or window ID instead of the current window. Can also be used as a |method|: > GetWin()->clearmatches() < *col()* col({expr}) The result is a Number, which is the byte index of the column position given with {expr}. The accepted positions are: . the cursor position $ the end of the cursor line (the result is the number of bytes in the cursor line plus one) 'x position of mark x (if the mark is not set, 0 is returned) v In Visual mode: the start of the Visual area (the cursor is the end). When not in Visual mode returns the cursor position. Differs from |'<| in that it's updated right away. Additionally {expr} can be [lnum, col]: a |List| with the line and column number. Most useful when the column is "$", to get the last column of a specific line. When "lnum" or "col" is out of range then col() returns zero. To get the line number use |line()|. To get both use |getpos()|. For the screen column position use |virtcol()|. For the character position use |charcol()|. Note that only marks in the current file can be used. Examples: > col(".") column of cursor col("$") length of cursor line plus one col("'t") column of mark t col("'" .. markname) column of mark markname < The first column is 1. Returns 0 if {expr} is invalid. For an uppercase mark the column may actually be in another buffer. For the cursor position, when 'virtualedit' is active, the column is one higher if the cursor is after the end of the line. This can be used to obtain the column in Insert mode: > :imap :let save_ve = &ve \:set ve=all \:echo col(".") .. "\n" \let &ve = save_ve < Can also be used as a |method|: > GetPos()->col() < complete({startcol}, {matches}) *complete()* *E785* Set the matches for Insert mode completion. Can only be used in Insert mode. You need to use a mapping with CTRL-R = (see |i_CTRL-R|). It does not work after CTRL-O or with an expression mapping. {startcol} is the byte offset in the line where the completed text start. The text up to the cursor is the original text that will be replaced by the matches. Use col('.') for an empty string. "col('.') - 1" will replace one character by a match. {matches} must be a |List|. Each |List| item is one match. See |complete-items| for the kind of items that are possible. "longest" in 'completeopt' is ignored. Note that the after calling this function you need to avoid inserting anything that would cause completion to stop. The match can be selected with CTRL-N and CTRL-P as usual with Insert mode completion. The popup menu will appear if specified, see |ins-completion-menu|. Example: > inoremap =ListMonths() func! ListMonths() call complete(col('.'), ['January', 'February', 'March', \ 'April', 'May', 'June', 'July', 'August', 'September', \ 'October', 'November', 'December']) return '' endfunc < This isn't very useful, but it shows how it works. Note that an empty string is returned to avoid a zero being inserted. Can also be used as a |method|, the base is passed as the second argument: > GetMatches()->complete(col('.')) complete_add({expr}) *complete_add()* Add {expr} to the list of matches. Only to be used by the function specified with the 'completefunc' option. Returns 0 for failure (empty string or out of memory), 1 when the match was added, 2 when the match was already in the list. See |complete-functions| for an explanation of {expr}. It is the same as one item in the list that 'omnifunc' would return. Can also be used as a |method|: > GetMoreMatches()->complete_add() complete_check() *complete_check()* Check for a key typed while looking for completion matches. This is to be used when looking for matches takes some time. Returns |TRUE| when searching for matches is to be aborted, zero otherwise. Only to be used by the function specified with the 'completefunc' option. complete_info([{what}]) *complete_info()* Returns a |Dictionary| with information about Insert mode completion. See |ins-completion|. The items are: mode Current completion mode name string. See |complete_info_mode| for the values. pum_visible |TRUE| if popup menu is visible. See |pumvisible()|. items List of completion matches. Each item is a dictionary containing the entries "word", "abbr", "menu", "kind", "info" and "user_data". See |complete-items|. selected Selected item index. First index is zero. Index is -1 if no item is selected (showing typed text only, or the last completion after no item is selected when using the or keys) inserted Inserted string. [NOT IMPLEMENT YET] *complete_info_mode* mode values are: "" Not in completion mode "keyword" Keyword completion |i_CTRL-X_CTRL-N| "ctrl_x" Just pressed CTRL-X |i_CTRL-X| "scroll" Scrolling with |i_CTRL-X_CTRL-E| or |i_CTRL-X_CTRL-Y| "whole_line" Whole lines |i_CTRL-X_CTRL-L| "files" File names |i_CTRL-X_CTRL-F| "tags" Tags |i_CTRL-X_CTRL-]| "path_defines" Definition completion |i_CTRL-X_CTRL-D| "path_patterns" Include completion |i_CTRL-X_CTRL-I| "dictionary" Dictionary |i_CTRL-X_CTRL-K| "thesaurus" Thesaurus |i_CTRL-X_CTRL-T| "cmdline" Vim Command line |i_CTRL-X_CTRL-V| "function" User defined completion |i_CTRL-X_CTRL-U| "omni" Omni completion |i_CTRL-X_CTRL-O| "spell" Spelling suggestions |i_CTRL-X_s| "eval" |complete()| completion "unknown" Other internal modes If the optional {what} list argument is supplied, then only the items listed in {what} are returned. Unsupported items in {what} are silently ignored. To get the position and size of the popup menu, see |pum_getpos()|. It's also available in |v:event| during the |CompleteChanged| event. Returns an empty |Dictionary| on error. Examples: > " Get all items call complete_info() " Get only 'mode' call complete_info(['mode']) " Get only 'mode' and 'pum_visible' call complete_info(['mode', 'pum_visible']) < Can also be used as a |method|: > GetItems()->complete_info() < *confirm()* confirm({msg} [, {choices} [, {default} [, {type}]]]) confirm() offers the user a dialog, from which a choice can be made. It returns the number of the choice. For the first choice this is 1. {msg} is displayed in a dialog with {choices} as the alternatives. When {choices} is missing or empty, "&OK" is used (and translated). {msg} is a String, use '\n' to include a newline. Only on some systems the string is wrapped when it doesn't fit. {choices} is a String, with the individual choices separated by '\n', e.g. > confirm("Save changes?", "&Yes\n&No\n&Cancel") < The letter after the '&' is the shortcut key for that choice. Thus you can type 'c' to select "Cancel". The shortcut does not need to be the first letter: > confirm("file has been modified", "&Save\nSave &All") < For the console, the first letter of each choice is used as the default shortcut key. Case is ignored. The optional {type} String argument gives the type of dialog. It can be one of these values: "Error", "Question", "Info", "Warning" or "Generic". Only the first character is relevant. When {type} is omitted, "Generic" is used. The optional {type} argument gives the type of dialog. This is only used for the icon of the Win32 GUI. It can be one of these values: "Error", "Question", "Info", "Warning" or "Generic". Only the first character is relevant. When {type} is omitted, "Generic" is used. If the user aborts the dialog by pressing , CTRL-C, or another valid interrupt key, confirm() returns 0. An example: > let choice = confirm("What do you want?", \ "&Apples\n&Oranges\n&Bananas", 2) if choice == 0 echo "make up your mind!" elseif choice == 3 echo "tasteful" else echo "I prefer bananas myself." endif < In a GUI dialog, buttons are used. The layout of the buttons depends on the 'v' flag in 'guioptions'. If it is included, the buttons are always put vertically. Otherwise, confirm() tries to put the buttons in one horizontal line. If they don't fit, a vertical layout is used anyway. For some systems the horizontal layout is always used. Can also be used as a |method|in: > BuildMessage()->confirm("&Yes\n&No") < *copy()* copy({expr}) Make a copy of {expr}. For Numbers and Strings this isn't different from using {expr} directly. When {expr} is a |List| a shallow copy is created. This means that the original |List| can be changed without changing the copy, and vice versa. But the items are identical, thus changing an item changes the contents of both |Lists|. A |Dictionary| is copied in a similar way as a |List|. Also see |deepcopy()|. Can also be used as a |method|: > mylist->copy() cos({expr}) *cos()* Return the cosine of {expr}, measured in radians, as a |Float|. {expr} must evaluate to a |Float| or a |Number|. Returns 0.0 if {expr} is not a |Float| or a |Number|. Examples: > :echo cos(100) < 0.862319 > :echo cos(-4.01) < -0.646043 Can also be used as a |method|: > Compute()->cos() cosh({expr}) *cosh()* Return the hyperbolic cosine of {expr} as a |Float| in the range [1, inf]. {expr} must evaluate to a |Float| or a |Number|. Returns 0.0 if {expr} is not a |Float| or a |Number|. Examples: > :echo cosh(0.5) < 1.127626 > :echo cosh(-0.5) < -1.127626 Can also be used as a |method|: > Compute()->cosh() count({comp}, {expr} [, {ic} [, {start}]]) *count()* Return the number of times an item with value {expr} appears in |String|, |List| or |Dictionary| {comp}. If {start} is given then start with the item with this index. {start} can only be used with a |List|. When {ic} is given and it's |TRUE| then case is ignored. When {comp} is a string then the number of not overlapping occurrences of {expr} is returned. Zero is returned when {expr} is an empty string. Can also be used as a |method|: > mylist->count(val) < *cscope_connection()* cscope_connection([{num} , {dbpath} [, {prepend}]]) Checks for the existence of a |cscope| connection. If no parameters are specified, then the function returns: 0, if there are no cscope connections; 1, if there is at least one cscope connection. If parameters are specified, then the value of {num} determines how existence of a cscope connection is checked: {num} Description of existence check ----- ------------------------------ 0 Same as no parameters (e.g., "cscope_connection()"). 1 Ignore {prepend}, and use partial string matches for {dbpath}. 2 Ignore {prepend}, and use exact string matches for {dbpath}. 3 Use {prepend}, use partial string matches for both {dbpath} and {prepend}. 4 Use {prepend}, use exact string matches for both {dbpath} and {prepend}. Note: All string comparisons are case sensitive! Examples. Suppose we had the following (from ":cs show"): > # pid database name prepend path 0 27664 cscope.out /usr/local < Invocation Return Val ~ ---------- ---------- > cscope_connection() 1 cscope_connection(1, "out") 1 cscope_connection(2, "out") 0 cscope_connection(3, "out") 0 cscope_connection(3, "out", "local") 1 cscope_connection(4, "out") 0 cscope_connection(4, "out", "local") 0 cscope_connection(4, "cscope.out", "/usr/local") 1 < ctxget([{index}]) *ctxget()* Returns a |Dictionary| representing the |context| at {index} from the top of the |context-stack| (see |context-dict|). If {index} is not given, it is assumed to be 0 (i.e.: top). ctxpop() *ctxpop()* Pops and restores the |context| at the top of the |context-stack|. ctxpush([{types}]) *ctxpush()* Pushes the current editor state (|context|) on the |context-stack|. If {types} is given and is a |List| of |String|s, it specifies which |context-types| to include in the pushed context. Otherwise, all context types are included. ctxset({context} [, {index}]) *ctxset()* Sets the |context| at {index} from the top of the |context-stack| to that represented by {context}. {context} is a Dictionary with context data (|context-dict|). If {index} is not given, it is assumed to be 0 (i.e.: top). ctxsize() *ctxsize()* Returns the size of the |context-stack|. cursor({lnum}, {col} [, {off}]) *cursor()* cursor({list}) Positions the cursor at the column (byte count) {col} in the line {lnum}. The first column is one. When there is one argument {list} this is used as a |List| with two, three or four item: [{lnum}, {col}] [{lnum}, {col}, {off}] [{lnum}, {col}, {off}, {curswant}] This is like the return value of |getpos()| or |getcurpos()|, but without the first item. To position the cursor using the character count, use |setcursorcharpos()|. Does not change the jumplist. If {lnum} is greater than the number of lines in the buffer, the cursor will be positioned at the last line in the buffer. If {lnum} is zero, the cursor will stay in the current line. If {col} is greater than the number of bytes in the line, the cursor will be positioned at the last character in the line. If {col} is zero, the cursor will stay in the current column. If {curswant} is given it is used to set the preferred column for vertical movement. Otherwise {col} is used. When 'virtualedit' is used {off} specifies the offset in screen columns from the start of the character. E.g., a position within a or after the last character. Returns 0 when the position could be set, -1 otherwise. Can also be used as a |method|: > GetCursorPos()->cursor() deepcopy({expr} [, {noref}]) *deepcopy()* *E698* Make a copy of {expr}. For Numbers and Strings this isn't different from using {expr} directly. When {expr} is a |List| a full copy is created. This means that the original |List| can be changed without changing the copy, and vice versa. When an item is a |List|, a copy for it is made, recursively. Thus changing an item in the copy does not change the contents of the original |List|. When {noref} is omitted or zero a contained |List| or |Dictionary| is only copied once. All references point to this single copy. With {noref} set to 1 every occurrence of a |List| or |Dictionary| results in a new copy. This also means that a cyclic reference causes deepcopy() to fail. *E724* Nesting is possible up to 100 levels. When there is an item that refers back to a higher level making a deep copy with {noref} set to 1 will fail. Also see |copy()|. Can also be used as a |method|: > GetObject()->deepcopy() delete({fname} [, {flags}]) *delete()* Without {flags} or with {flags} empty: Deletes the file by the name {fname}. This also works when {fname} is a symbolic link. The symbolic link itself is deleted, not what it points to. When {flags} is "d": Deletes the directory by the name {fname}. This fails when directory {fname} is not empty. When {flags} is "rf": Deletes the directory by the name {fname} and everything in it, recursively. BE CAREFUL! Note: on MS-Windows it is not possible to delete a directory that is being used. The result is a Number, which is 0/false if the delete operation was successful and -1/true when the deletion failed or partly failed. Can also be used as a |method|: > GetName()->delete() deletebufline({buf}, {first} [, {last}]) *deletebufline()* Delete lines {first} to {last} (inclusive) from buffer {buf}. If {last} is omitted then delete line {first} only. On success 0 is returned, on failure 1 is returned. This function works only for loaded buffers. First call |bufload()| if needed. For the use of {buf}, see |bufname()| above. {first} and {last} are used like with |getline()|. Note that when using |line()| this refers to the current buffer. Use "$" to refer to the last line in buffer {buf}. Can also be used as a |method|: > GetBuffer()->deletebufline(1) < dictwatcheradd({dict}, {pattern}, {callback}) *dictwatcheradd()* Adds a watcher to a dictionary. A dictionary watcher is identified by three components: - A dictionary({dict}); - A key pattern({pattern}). - A function({callback}). After this is called, every change on {dict} and on keys matching {pattern} will result in {callback} being invoked. For example, to watch all global variables: > silent! call dictwatcherdel(g:, '*', 'OnDictChanged') function! OnDictChanged(d,k,z) echomsg string(a:k) string(a:z) endfunction call dictwatcheradd(g:, '*', 'OnDictChanged') < For now {pattern} only accepts very simple patterns that can contain a '*' at the end of the string, in which case it will match every key that begins with the substring before the '*'. That means if '*' is not the last character of {pattern}, only keys that are exactly equal as {pattern} will be matched. The {callback} receives three arguments: - The dictionary being watched. - The key which changed. - A dictionary containing the new and old values for the key. The type of change can be determined by examining the keys present on the third argument: - If contains both `old` and `new`, the key was updated. - If it contains only `new`, the key was added. - If it contains only `old`, the key was deleted. This function can be used by plugins to implement options with validation and parsing logic. dictwatcherdel({dict}, {pattern}, {callback}) *dictwatcherdel()* Removes a watcher added with |dictwatcheradd()|. All three arguments must match the ones passed to |dictwatcheradd()| in order for the watcher to be successfully deleted. *did_filetype()* did_filetype() Returns |TRUE| when autocommands are being executed and the FileType event has been triggered at least once. Can be used to avoid triggering the FileType event again in the scripts that detect the file type. |FileType| Returns |FALSE| when `:setf FALLBACK` was used. When editing another file, the counter is reset, thus this really checks if the FileType event has been triggered for the current buffer. This allows an autocommand that starts editing another buffer to set 'filetype' and load a syntax file. diff_filler({lnum}) *diff_filler()* Returns the number of filler lines above line {lnum}. These are the lines that were inserted at this point in another diff'ed window. These filler lines are shown in the display but don't exist in the buffer. {lnum} is used like with |getline()|. Thus "." is the current line, "'m" mark m, etc. Returns 0 if the current window is not in diff mode. Can also be used as a |method|: > GetLnum()->diff_filler() diff_hlID({lnum}, {col}) *diff_hlID()* Returns the highlight ID for diff mode at line {lnum} column {col} (byte index). When the current line does not have a diff change zero is returned. {lnum} is used like with |getline()|. Thus "." is the current line, "'m" mark m, etc. {col} is 1 for the leftmost column, {lnum} is 1 for the first line. The highlight ID can be used with |synIDattr()| to obtain syntax information about the highlighting. Can also be used as a |method|: > GetLnum()->diff_hlID(col) < digraph_get({chars}) *digraph_get()* *E1214* Return the digraph of {chars}. This should be a string with exactly two characters. If {chars} are not just two characters, or the digraph of {chars} does not exist, an error is given and an empty string is returned. Also see |digraph_getlist()|. Examples: > " Get a built-in digraph :echo digraph_get('00') " Returns '∞' " Get a user-defined digraph :call digraph_set('aa', 'あ') :echo digraph_get('aa') " Returns 'あ' < Can also be used as a |method|: > GetChars()->digraph_get() < digraph_getlist([{listall}]) *digraph_getlist()* Return a list of digraphs. If the {listall} argument is given and it is TRUE, return all digraphs, including the default digraphs. Otherwise, return only user-defined digraphs. Also see |digraph_get()|. Examples: > " Get user-defined digraphs :echo digraph_getlist() " Get all the digraphs, including default digraphs :echo digraph_getlist(1) < Can also be used as a |method|: > GetNumber()->digraph_getlist() < digraph_set({chars}, {digraph}) *digraph_set()* Add digraph {chars} to the list. {chars} must be a string with two characters. {digraph} is a string with one UTF-8 encoded character. *E1215* Be careful, composing characters are NOT ignored. This function is similar to |:digraphs| command, but useful to add digraphs start with a white space. The function result is v:true if |digraph| is registered. If this fails an error message is given and v:false is returned. If you want to define multiple digraphs at once, you can use |digraph_setlist()|. Example: > call digraph_set(' ', 'あ') < Can be used as a |method|: > GetString()->digraph_set('あ') < digraph_setlist({digraphlist}) *digraph_setlist()* Similar to |digraph_set()| but this function can add multiple digraphs at once. {digraphlist} is a list composed of lists, where each list contains two strings with {chars} and {digraph} as in |digraph_set()|. *E1216* Example: > call digraph_setlist([['aa', 'あ'], ['ii', 'い']]) < It is similar to the following: > for [chars, digraph] in [['aa', 'あ'], ['ii', 'い']] call digraph_set(chars, digraph) endfor < Except that the function returns after the first error, following digraphs will not be added. Can be used as a |method|: > GetList()->digraph_setlist() < empty({expr}) *empty()* Return the Number 1 if {expr} is empty, zero otherwise. - A |List| or |Dictionary| is empty when it does not have any items. - A |String| is empty when its length is zero. - A |Number| and |Float| are empty when their value is zero. - |v:false| and |v:null| are empty, |v:true| is not. - A |Blob| is empty when its length is zero. Can also be used as a |method|: > mylist->empty() environ() *environ()* Return all of environment variables as dictionary. You can check if an environment variable exists like this: > :echo has_key(environ(), 'HOME') < Note that the variable name may be CamelCase; to ignore case use this: > :echo index(keys(environ()), 'HOME', 0, 1) != -1 escape({string}, {chars}) *escape()* Escape the characters in {chars} that occur in {string} with a backslash. Example: > :echo escape('c:\program files\vim', ' \') < results in: > c:\\program\ files\\vim < Also see |shellescape()| and |fnameescape()|. Can also be used as a |method|: > GetText()->escape(' \') < *eval()* eval({string}) Evaluate {string} and return the result. Especially useful to turn the result of |string()| back into the original value. This works for Numbers, Floats, Strings, Blobs and composites of them. Also works for |Funcref|s that refer to existing functions. Can also be used as a |method|: > argv->join()->eval() eventhandler() *eventhandler()* Returns 1 when inside an event handler. That is that Vim got interrupted while waiting for the user to type a character, e.g., when dropping a file on Vim. This means interactive commands cannot be used. Otherwise zero is returned. executable({expr}) *executable()* This function checks if an executable with the name {expr} exists. {expr} must be the name of the program without any arguments. executable() uses the value of $PATH and/or the normal searchpath for programs. *PATHEXT* On MS-Windows the ".exe", ".bat", etc. can optionally be included. Then the extensions in $PATHEXT are tried. Thus if "foo.exe" does not exist, "foo.exe.bat" can be found. If $PATHEXT is not set then ".exe;.com;.bat;.cmd" is used. A dot by itself can be used in $PATHEXT to try using the name without an extension. When 'shell' looks like a Unix shell, then the name is also tried without adding an extension. On MS-Windows it only checks if the file exists and is not a directory, not if it's really executable. On Windows an executable in the same directory as Vim is always found (it is added to $PATH at |startup|). The result is a Number: 1 exists 0 does not exist -1 not implemented on this system |exepath()| can be used to get the full path of an executable. Can also be used as a |method|: > GetCommand()->executable() execute({command} [, {silent}]) *execute()* Execute {command} and capture its output. If {command} is a |String|, returns {command} output. If {command} is a |List|, returns concatenated outputs. Examples: > echo execute('echon "foo"') < foo > echo execute(['echon "foo"', 'echon "bar"']) < foobar The optional {silent} argument can have these values: "" no `:silent` used "silent" `:silent` used "silent!" `:silent!` used The default is "silent". Note that with "silent!", unlike `:redir`, error messages are dropped. To get a list of lines use |split()| on the result: > execute('args')->split("\n") < This function is not available in the |sandbox|. Note: If nested, an outer execute() will not observe output of the inner calls. Note: Text attributes (highlights) are not captured. To execute a command in another window than the current one use `win_execute()`. Can also be used as a |method|: > GetCommand()->execute() exepath({expr}) *exepath()* Returns the full path of {expr} if it is an executable and given as a (partial or full) path or is found in $PATH. Returns empty string otherwise. If {expr} starts with "./" the |current-directory| is used. Can also be used as a |method|: > GetCommand()->exepath() < *exists()* exists({expr}) The result is a Number, which is |TRUE| if {expr} is defined, zero otherwise. For checking for a supported feature use |has()|. For checking if a file exists use |filereadable()|. The {expr} argument is a string, which contains one of these: varname internal variable (see dict.key |internal-variables|). Also works list[i] for |curly-braces-names|, |Dictionary| entries, |List| items, etc. Beware that evaluating an index may cause an error message for an invalid expression. E.g.: > :let l = [1, 2, 3] :echo exists("l[5]") < 0 > :echo exists("l[xx]") < E121: Undefined variable: xx 0 &option-name Vim option (only checks if it exists, not if it really works) +option-name Vim option that works. $ENVNAME environment variable (could also be done by comparing with an empty string) *funcname built-in function (see |functions|) or user defined function (see |user-function|). Also works for a variable that is a Funcref. :cmdname Ex command: built-in command, user command or command modifier |:command|. Returns: 1 for match with start of a command 2 full match with a command 3 matches several user commands To check for a supported command always check the return value to be 2. :2match The |:2match| command. :3match The |:3match| command. #event autocommand defined for this event #event#pattern autocommand defined for this event and pattern (the pattern is taken literally and compared to the autocommand patterns character by character) #group autocommand group exists #group#event autocommand defined for this group and event. #group#event#pattern autocommand defined for this group, event and pattern. ##event autocommand for this event is supported. Examples: > exists("&mouse") exists("$HOSTNAME") exists("*strftime") exists("*s:MyFunc") exists("*MyFunc") exists("bufcount") exists(":Make") exists("#CursorHold") exists("#BufReadPre#*.gz") exists("#filetypeindent") exists("#filetypeindent#FileType") exists("#filetypeindent#FileType#*") exists("##ColorScheme") < There must be no space between the symbol (&/$/*/#) and the name. There must be no extra characters after the name, although in a few cases this is ignored. That may become stricter in the future, thus don't count on it! Working example: > exists(":make") < NOT working example: > exists(":make install") < Note that the argument must be a string, not the name of the variable itself. For example: > exists(bufcount) < This doesn't check for existence of the "bufcount" variable, but gets the value of "bufcount", and checks if that exists. Can also be used as a |method|: > Varname()->exists() exp({expr}) *exp()* Return the exponential of {expr} as a |Float| in the range [0, inf]. {expr} must evaluate to a |Float| or a |Number|. Returns 0.0 if {expr} is not a |Float| or a |Number|. Examples: > :echo exp(2) < 7.389056 > :echo exp(-1) < 0.367879 Can also be used as a |method|: > Compute()->exp() debugbreak({pid}) *debugbreak()* Specifically used to interrupt a program being debugged. It will cause process {pid} to get a SIGTRAP. Behavior for other processes is undefined. See |terminal-debugger|. {Sends a SIGINT to a process {pid} other than MS-Windows} Returns |TRUE| if successfully interrupted the program. Otherwise returns |FALSE|. Can also be used as a |method|: > GetPid()->debugbreak() expand({string} [, {nosuf} [, {list}]]) *expand()* Expand wildcards and the following special keywords in {string}. 'wildignorecase' applies. If {list} is given and it is |TRUE|, a List will be returned. Otherwise the result is a String and when there are several matches, they are separated by characters. If the expansion fails, the result is an empty string. A name for a non-existing file is not included, unless {string} does not start with '%', '#' or '<', see below. When {string} starts with '%', '#' or '<', the expansion is done like for the |cmdline-special| variables with their associated modifiers. Here is a short overview: % current file name # alternate file name #n alternate file name n file name under the cursor autocmd file name autocmd buffer number (as a String!) autocmd matched name sourced script file or function name sourced script line number or function line number script file line number, also when in a function "123_" where "123" is the current script ID || word under the cursor WORD under the cursor the {clientid} of the last received message Modifiers: :p expand to full path :h head (last path component removed) :t tail (last path component only) :r root (one extension removed) :e extension only Example: > :let &tags = expand("%:p:h") .. "/tags" < Note that when expanding a string that starts with '%', '#' or '<', any following text is ignored. This does NOT work: > :let doesntwork = expand("%:h.bak") < Use this: > :let doeswork = expand("%:h") .. ".bak" < Also note that expanding "" and others only returns the referenced file name without further expansion. If "" is "~/.cshrc", you need to do another expand() to have the "~/" expanded into the path of the home directory: > :echo expand(expand("")) < There cannot be white space between the variables and the following modifier. The |fnamemodify()| function can be used to modify normal file names. When using '%' or '#', and the current or alternate file name is not defined, an empty string is used. Using "%:p" in a buffer with no name, results in the current directory, with a '/' added. When {string} does not start with '%', '#' or '<', it is expanded like a file name is expanded on the command line. 'suffixes' and 'wildignore' are used, unless the optional {nosuf} argument is given and it is |TRUE|. Names for non-existing files are included. The "**" item can be used to search in a directory tree. For example, to find all "README" files in the current directory and below: > :echo expand("**/README") < expand() can also be used to expand variables and environment variables that are only known in a shell. But this can be slow, because a shell may be used to do the expansion. See |expr-env-expand|. The expanded variable is still handled like a list of file names. When an environment variable cannot be expanded, it is left unchanged. Thus ":echo expand('$FOOBAR')" results in "$FOOBAR". See |glob()| for finding existing files. See |system()| for getting the raw output of an external command. Can also be used as a |method|: > Getpattern()->expand() expandcmd({string}) *expandcmd()* Expand special items in String {string} like what is done for an Ex command such as `:edit`. This expands special keywords, like with |expand()|, and environment variables, anywhere in {string}. "~user" and "~/path" are only expanded at the start. Returns the expanded string. Example: > :echo expandcmd('make %<.o') < Can also be used as a |method|: > GetCommand()->expandcmd() < extend({expr1}, {expr2} [, {expr3}]) *extend()* {expr1} and {expr2} must be both |Lists| or both |Dictionaries|. If they are |Lists|: Append {expr2} to {expr1}. If {expr3} is given insert the items of {expr2} before the item with index {expr3} in {expr1}. When {expr3} is zero insert before the first item. When {expr3} is equal to len({expr1}) then {expr2} is appended. Examples: > :echo sort(extend(mylist, [7, 5])) :call extend(mylist, [2, 3], 1) < When {expr1} is the same List as {expr2} then the number of items copied is equal to the original length of the List. E.g., when {expr3} is 1 you get N new copies of the first item (where N is the original length of the List). Use |add()| to concatenate one item to a list. To concatenate two lists into a new list use the + operator: > :let newlist = [1, 2, 3] + [4, 5] < If they are |Dictionaries|: Add all entries from {expr2} to {expr1}. If a key exists in both {expr1} and {expr2} then {expr3} is used to decide what to do: {expr3} = "keep": keep the value of {expr1} {expr3} = "force": use the value of {expr2} {expr3} = "error": give an error message *E737* When {expr3} is omitted then "force" is assumed. {expr1} is changed when {expr2} is not empty. If necessary make a copy of {expr1} first. {expr2} remains unchanged. When {expr1} is locked and {expr2} is not empty the operation fails. Returns {expr1}. Returns 0 on error. Can also be used as a |method|: > mylist->extend(otherlist) feedkeys({string} [, {mode}]) *feedkeys()* Characters in {string} are queued for processing as if they come from a mapping or were typed by the user. By default the string is added to the end of the typeahead buffer, thus if a mapping is still being executed the characters come after them. Use the 'i' flag to insert before other characters, they will be executed next, before any characters from a mapping. The function does not wait for processing of keys contained in {string}. To include special keys into {string}, use double-quotes and "\..." notation |expr-quote|. For example, feedkeys("\") simulates pressing of the key. But feedkeys('\') pushes 5 characters. The || keycode may be used to exit the wait-for-character without doing anything. {mode} is a String, which can contain these character flags: 'm' Remap keys. This is default. If {mode} is absent, keys are remapped. 'n' Do not remap keys. 't' Handle keys as if typed; otherwise they are handled as if coming from a mapping. This matters for undo, opening folds, etc. 'i' Insert the string instead of appending (see above). 'x' Execute commands until typeahead is empty. This is similar to using ":normal!". You can call feedkeys() several times without 'x' and then one time with 'x' (possibly with an empty {string}) to execute all the typeahead. Note that when Vim ends in Insert mode it will behave as if is typed, to avoid getting stuck, waiting for a character to be typed before the script continues. Note that if you manage to call feedkeys() while executing commands, thus calling it recursively, then all typehead will be consumed by the last call. '!' When used with 'x' will not end Insert mode. Can be used in a test when a timer is set to exit Insert mode a little later. Useful for testing CursorHoldI. Return value is always 0. Can also be used as a |method|: > GetInput()->feedkeys() filereadable({file}) *filereadable()* The result is a Number, which is |TRUE| when a file with the name {file} exists, and can be read. If {file} doesn't exist, or is a directory, the result is |FALSE|. {file} is any expression, which is used as a String. If you don't care about the file being readable you can use |glob()|. {file} is used as-is, you may want to expand wildcards first: > echo filereadable('~/.vimrc') 0 echo filereadable(expand('~/.vimrc')) 1 < Can also be used as a |method|: > GetName()->filereadable() filewritable({file}) *filewritable()* The result is a Number, which is 1 when a file with the name {file} exists, and can be written. If {file} doesn't exist, or is not writable, the result is 0. If {file} is a directory, and we can write to it, the result is 2. Can also be used as a |method|: > GetName()->filewriteable() filter({expr1}, {expr2}) *filter()* {expr1} must be a |List|, |Blob|, or a |Dictionary|. For each item in {expr1} evaluate {expr2} and when the result is zero remove the item from the |List| or |Dictionary|. For a |Blob| each byte is removed. {expr2} must be a |string| or |Funcref|. If {expr2} is a |string|, inside {expr2} |v:val| has the value of the current item. For a |Dictionary| |v:key| has the key of the current item and for a |List| |v:key| has the index of the current item. For a |Blob| |v:key| has the index of the current byte. Examples: > call filter(mylist, 'v:val !~ "OLD"') < Removes the items where "OLD" appears. > call filter(mydict, 'v:key >= 8') < Removes the items with a key below 8. > call filter(var, 0) < Removes all the items, thus clears the |List| or |Dictionary|. Note that {expr2} is the result of expression and is then used as an expression again. Often it is good to use a |literal-string| to avoid having to double backslashes. If {expr2} is a |Funcref| it must take two arguments: 1. the key or the index of the current item. 2. the value of the current item. The function must return |TRUE| if the item should be kept. Example that keeps the odd items of a list: > func Odd(idx, val) return a:idx % 2 == 1 endfunc call filter(mylist, function('Odd')) < It is shorter when using a |lambda|: > call filter(myList, {idx, val -> idx * val <= 42}) < If you do not use "val" you can leave it out: > call filter(myList, {idx -> idx % 2 == 1}) < The operation is done in-place. If you want a |List| or |Dictionary| to remain unmodified make a copy first: > :let l = filter(copy(mylist), 'v:val =~ "KEEP"') < Returns {expr1}, the |List|, |Blob| or |Dictionary| that was filtered. When an error is encountered while evaluating {expr2} no further items in {expr1} are processed. When {expr2} is a Funcref errors inside a function are ignored, unless it was defined with the "abort" flag. Can also be used as a |method|: > mylist->filter(expr2) finddir({name} [, {path} [, {count}]]) *finddir()* Find directory {name} in {path}. Supports both downwards and upwards recursive directory searches. See |file-searching| for the syntax of {path}. Returns the path of the first found match. When the found directory is below the current directory a relative path is returned. Otherwise a full path is returned. If {path} is omitted or empty then 'path' is used. If the optional {count} is given, find {count}'s occurrence of {name} in {path} instead of the first one. When {count} is negative return all the matches in a |List|. Returns an empty string if the directory is not found. This is quite similar to the ex-command `:find`. Can also be used as a |method|: > GetName()->finddir() findfile({name} [, {path} [, {count}]]) *findfile()* Just like |finddir()|, but find a file instead of a directory. Uses 'suffixesadd'. Example: > :echo findfile("tags.vim", ".;") < Searches from the directory of the current file upwards until it finds the file "tags.vim". Can also be used as a |method|: > GetName()->findfile() flatten({list} [, {maxdepth}]) *flatten()* Flatten {list} up to {maxdepth} levels. Without {maxdepth} the result is a |List| without nesting, as if {maxdepth} is a very large number. The {list} is changed in place, make a copy first if you do not want that. *E900* {maxdepth} means how deep in nested lists changes are made. {list} is not modified when {maxdepth} is 0. {maxdepth} must be positive number. If there is an error the number zero is returned. Example: > :echo flatten([1, [2, [3, 4]], 5]) < [1, 2, 3, 4, 5] > :echo flatten([1, [2, [3, 4]], 5], 1) < [1, 2, [3, 4], 5] Can also be used as a |method|: > mylist->flatten() < float2nr({expr}) *float2nr()* Convert {expr} to a Number by omitting the part after the decimal point. {expr} must evaluate to a |Float| or a Number. Returns 0 if {expr} is not a |Float| or a |Number|. When the value of {expr} is out of range for a |Number| the result is truncated to 0x7fffffff or -0x7fffffff (or when 64-bit Number support is enabled, 0x7fffffffffffffff or -0x7fffffffffffffff). NaN results in -0x80000000 (or when 64-bit Number support is enabled, -0x8000000000000000). Examples: > echo float2nr(3.95) < 3 > echo float2nr(-23.45) < -23 > echo float2nr(1.0e100) < 2147483647 (or 9223372036854775807) > echo float2nr(-1.0e150) < -2147483647 (or -9223372036854775807) > echo float2nr(1.0e-100) < 0 Can also be used as a |method|: > Compute()->float2nr() floor({expr}) *floor()* Return the largest integral value less than or equal to {expr} as a |Float| (round down). {expr} must evaluate to a |Float| or a |Number|. Returns 0.0 if {expr} is not a |Float| or a |Number|. Examples: > echo floor(1.856) < 1.0 > echo floor(-5.456) < -6.0 > echo floor(4.0) < 4.0 Can also be used as a |method|: > Compute()->floor() fmod({expr1}, {expr2}) *fmod()* Return the remainder of {expr1} / {expr2}, even if the division is not representable. Returns {expr1} - i * {expr2} for some integer i such that if {expr2} is non-zero, the result has the same sign as {expr1} and magnitude less than the magnitude of {expr2}. If {expr2} is zero, the value returned is zero. The value returned is a |Float|. {expr1} and {expr2} must evaluate to a |Float| or a |Number|. Returns 0.0 if {expr1} or {expr2} is not a |Float| or a |Number|. Examples: > :echo fmod(12.33, 1.22) < 0.13 > :echo fmod(-12.33, 1.22) < -0.13 Can also be used as a |method|: > Compute()->fmod(1.22) fnameescape({string}) *fnameescape()* Escape {string} for use as file name command argument. All characters that have a special meaning, such as '%' and '|' are escaped with a backslash. For most systems the characters escaped are " \t\n*?[{`$\\%#'\"|!<". For systems where a backslash appears in a filename, it depends on the value of 'isfname'. A leading '+' and '>' is also escaped (special after |:edit| and |:write|). And a "-" by itself (special after |:cd|). Returns an empty string on error. Example: > :let fname = '+some str%nge|name' :exe "edit " .. fnameescape(fname) < results in executing: > edit \+some\ str\%nge\|name < Can also be used as a |method|: > GetName()->fnameescape() fnamemodify({fname}, {mods}) *fnamemodify()* Modify file name {fname} according to {mods}. {mods} is a string of characters like it is used for file names on the command line. See |filename-modifiers|. Example: > :echo fnamemodify("main.c", ":p:h") < results in: > /home/mool/vim/vim/src < If {mods} is empty or an unsupported modifier is used then {fname} is returned. Note: Environment variables don't work in {fname}, use |expand()| first then. Can also be used as a |method|: > GetName()->fnamemodify(':p:h') foldclosed({lnum}) *foldclosed()* The result is a Number. If the line {lnum} is in a closed fold, the result is the number of the first line in that fold. If the line {lnum} is not in a closed fold, -1 is returned. {lnum} is used like with |getline()|. Thus "." is the current line, "'m" mark m, etc. Can also be used as a |method|: > GetLnum()->foldclosed() foldclosedend({lnum}) *foldclosedend()* The result is a Number. If the line {lnum} is in a closed fold, the result is the number of the last line in that fold. If the line {lnum} is not in a closed fold, -1 is returned. {lnum} is used like with |getline()|. Thus "." is the current line, "'m" mark m, etc. Can also be used as a |method|: > GetLnum()->foldclosedend() foldlevel({lnum}) *foldlevel()* The result is a Number, which is the foldlevel of line {lnum} in the current buffer. For nested folds the deepest level is returned. If there is no fold at line {lnum}, zero is returned. It doesn't matter if the folds are open or closed. When used while updating folds (from 'foldexpr') -1 is returned for lines where folds are still to be updated and the foldlevel is unknown. As a special case the level of the previous line is usually available. {lnum} is used like with |getline()|. Thus "." is the current line, "'m" mark m, etc. Can also be used as a |method|: > GetLnum()->foldlevel() < *foldtext()* foldtext() Returns a String, to be displayed for a closed fold. This is the default function used for the 'foldtext' option and should only be called from evaluating 'foldtext'. It uses the |v:foldstart|, |v:foldend| and |v:folddashes| variables. The returned string looks like this: > +-- 45 lines: abcdef < The number of leading dashes depends on the foldlevel. The "45" is the number of lines in the fold. "abcdef" is the text in the first non-blank line of the fold. Leading white space, "//" or "/*" and the text from the 'foldmarker' and 'commentstring' options is removed. When used to draw the actual foldtext, the rest of the line will be filled with the fold char from the 'fillchars' setting. Returns an empty string when there is no fold. foldtextresult({lnum}) *foldtextresult()* Returns the text that is displayed for the closed fold at line {lnum}. Evaluates 'foldtext' in the appropriate context. When there is no closed fold at {lnum} an empty string is returned. {lnum} is used like with |getline()|. Thus "." is the current line, "'m" mark m, etc. Useful when exporting folded text, e.g., to HTML. Can also be used as a |method|: > GetLnum()->foldtextresult() < fullcommand({name}) *fullcommand()* Get the full command name from a short abbreviated command name; see |20.2| for details on command abbreviations. The string argument {name} may start with a `:` and can include a [range], these are skipped and not returned. Returns an empty string if a command doesn't exist or if it's ambiguous (for user-defined commands). For example `fullcommand('s')`, `fullcommand('sub')`, `fullcommand(':%substitute')` all return "substitute". Can also be used as a |method|: > GetName()->fullcommand() < *funcref()* funcref({name} [, {arglist}] [, {dict}]) Just like |function()|, but the returned Funcref will lookup the function by reference, not by name. This matters when the function {name} is redefined later. Unlike |function()|, {name} must be an existing user function. It only works for an autoloaded function if it has already been loaded (to avoid mistakenly loading the autoload script when only intending to use the function name, use |function()| instead). {name} cannot be a builtin function. Returns 0 on error. Can also be used as a |method|: > GetFuncname()->funcref([arg]) < *function()* *E700* *E922* *E923* function({name} [, {arglist}] [, {dict}]) Return a |Funcref| variable that refers to function {name}. {name} can be a user defined function or an internal function. {name} can also be a Funcref or a partial. When it is a partial the dict stored in it will be used and the {dict} argument is not allowed. E.g.: > let FuncWithArg = function(dict.Func, [arg]) let Broken = function(dict.Func, [arg], dict) < When using the Funcref the function will be found by {name}, also when it was redefined later. Use |funcref()| to keep the same function. When {arglist} or {dict} is present this creates a partial. That means the argument list and/or the dictionary is stored in the Funcref and will be used when the Funcref is called. The arguments are passed to the function in front of other arguments, but after any argument from |method|. Example: > func Callback(arg1, arg2, name) ... let Partial = function('Callback', ['one', 'two']) ... call Partial('name') < Invokes the function as with: > call Callback('one', 'two', 'name') < The Dictionary is only useful when calling a "dict" function. In that case the {dict} is passed in as "self". Example: > function Callback() dict echo "called for " .. self.name endfunction ... let context = {"name": "example"} let Func = function('Callback', context) ... call Func() " will echo: called for example < The argument list and the Dictionary can be combined: > function Callback(arg1, count) dict ... let context = {"name": "example"} let Func = function('Callback', ['one'], context) ... call Func(500) < Invokes the function as with: > call context.Callback('one', 500) < Returns 0 on error. Can also be used as a |method|: > GetFuncname()->function([arg]) garbagecollect([{atexit}]) *garbagecollect()* Cleanup unused |Lists| and |Dictionaries| that have circular references. There is hardly ever a need to invoke this function, as it is automatically done when Vim runs out of memory or is waiting for the user to press a key after 'updatetime'. Items without circular references are always freed when they become unused. This is useful if you have deleted a very big |List| and/or |Dictionary| with circular references in a script that runs for a long time. When the optional {atexit} argument is one, garbage collection will also be done when exiting Vim, if it wasn't done before. This is useful when checking for memory leaks. The garbage collection is not done immediately but only when it's safe to perform. This is when waiting for the user to type a character. get({list}, {idx} [, {default}]) *get()* Get item {idx} from |List| {list}. When this item is not available return {default}. Return zero when {default} is omitted. Can also be used as a |method|: > mylist->get(idx) get({blob}, {idx} [, {default}]) Get byte {idx} from |Blob| {blob}. When this byte is not available return {default}. Return -1 when {default} is omitted. get({dict}, {key} [, {default}]) Get item with key {key} from |Dictionary| {dict}. When this item is not available return {default}. Return zero when {default} is omitted. Useful example: > let val = get(g:, 'var_name', 'default') < This gets the value of g:var_name if it exists, and uses 'default' when it does not exist. get({func}, {what}) Get item {what} from Funcref {func}. Possible values for {what} are: "name" The function name "func" The function "dict" The dictionary "args" The list with arguments Returns zero on error. *getbufinfo()* getbufinfo([{buf}]) getbufinfo([{dict}]) Get information about buffers as a List of Dictionaries. Without an argument information about all the buffers is returned. When the argument is a |Dictionary| only the buffers matching the specified criteria are returned. The following keys can be specified in {dict}: buflisted include only listed buffers. bufloaded include only loaded buffers. bufmodified include only modified buffers. Otherwise, {buf} specifies a particular buffer to return information for. For the use of {buf}, see |bufname()| above. If the buffer is found the returned List has one item. Otherwise the result is an empty list. Each returned List item is a dictionary with the following entries: bufnr Buffer number. changed TRUE if the buffer is modified. changedtick Number of changes made to the buffer. hidden TRUE if the buffer is hidden. lastused Timestamp in seconds, like |localtime()|, when the buffer was last used. listed TRUE if the buffer is listed. lnum Line number used for the buffer when opened in the current window. Only valid if the buffer has been displayed in the window in the past. If you want the line number of the last known cursor position in a given window, use |line()|: > :echo line('.', {winid}) < linecount Number of lines in the buffer (only valid when loaded) loaded TRUE if the buffer is loaded. name Full path to the file in the buffer. signs List of signs placed in the buffer. Each list item is a dictionary with the following fields: id sign identifier lnum line number name sign name variables A reference to the dictionary with buffer-local variables. windows List of |window-ID|s that display this buffer Examples: > for buf in getbufinfo() echo buf.name endfor for buf in getbufinfo({'buflisted':1}) if buf.changed .... endif endfor < To get buffer-local options use: > getbufvar({bufnr}, '&option_name') < Can also be used as a |method|: > GetBufnr()->getbufinfo() < *getbufline()* getbufline({buf}, {lnum} [, {end}]) Return a |List| with the lines starting from {lnum} to {end} (inclusive) in the buffer {buf}. If {end} is omitted, a |List| with only the line {lnum} is returned. For the use of {buf}, see |bufname()| above. For {lnum} and {end} "$" can be used for the last line of the buffer. Otherwise a number must be used. When {lnum} is smaller than 1 or bigger than the number of lines in the buffer, an empty |List| is returned. When {end} is greater than the number of lines in the buffer, it is treated as {end} is set to the number of lines in the buffer. When {end} is before {lnum} an empty |List| is returned. This function works only for loaded buffers. For unloaded and non-existing buffers, an empty |List| is returned. Example: > :let lines = getbufline(bufnr("myfile"), 1, "$") < Can also be used as a |method|: > GetBufnr()->getbufline(lnum) getbufvar({buf}, {varname} [, {def}]) *getbufvar()* The result is the value of option or local buffer variable {varname} in buffer {buf}. Note that the name without "b:" must be used. The {varname} argument is a string. When {varname} is empty returns a |Dictionary| with all the buffer-local variables. When {varname} is equal to "&" returns a |Dictionary| with all the buffer-local options. Otherwise, when {varname} starts with "&" returns the value of a buffer-local option. This also works for a global or buffer-local option, but it doesn't work for a global variable, window-local variable or window-local option. For the use of {buf}, see |bufname()| above. When the buffer or variable doesn't exist {def} or an empty string is returned, there is no error message. Examples: > :let bufmodified = getbufvar(1, "&mod") :echo "todo myvar = " .. getbufvar("todo", "myvar") < Can also be used as a |method|: > GetBufnr()->getbufvar(varname) < getchangelist([{buf}]) *getchangelist()* Returns the |changelist| for the buffer {buf}. For the use of {buf}, see |bufname()| above. If buffer {buf} doesn't exist, an empty list is returned. The returned list contains two entries: a list with the change locations and the current position in the list. Each entry in the change list is a dictionary with the following entries: col column number coladd column offset for 'virtualedit' lnum line number If buffer {buf} is the current buffer, then the current position refers to the position in the list. For other buffers, it is set to the length of the list. Can also be used as a |method|: > GetBufnr()->getchangelist() getchar([expr]) *getchar()* Get a single character from the user or input stream. If [expr] is omitted, wait until a character is available. If [expr] is 0, only get a character when one is available. Return zero otherwise. If [expr] is 1, only check if a character is available, it is not consumed. Return zero if no character available. If you prefer always getting a string use |getcharstr()|. Without [expr] and when [expr] is 0 a whole character or special key is returned. If it is a single character, the result is a Number. Use |nr2char()| to convert it to a String. Otherwise a String is returned with the encoded character. For a special key it's a String with a sequence of bytes starting with 0x80 (decimal: 128). This is the same value as the String "\", e.g., "\". The returned value is also a String when a modifier (shift, control, alt) was used that is not included in the character. When [expr] is 0 and Esc is typed, there will be a short delay while Vim waits to see if this is the start of an escape sequence. When [expr] is 1 only the first byte is returned. For a one-byte character it is the character itself as a number. Use nr2char() to convert it to a String. Use getcharmod() to obtain any additional modifiers. When the user clicks a mouse button, the mouse event will be returned. The position can then be found in |v:mouse_col|, |v:mouse_lnum|, |v:mouse_winid| and |v:mouse_win|. |getmousepos()| can also be used. Mouse move events will be ignored. This example positions the mouse as it would normally happen: > let c = getchar() if c == "\" && v:mouse_win > 0 exe v:mouse_win .. "wincmd w" exe v:mouse_lnum exe "normal " .. v:mouse_col .. "|" endif < There is no prompt, you will somehow have to make clear to the user that a character has to be typed. The screen is not redrawn, e.g. when resizing the window. There is no mapping for the character. Key codes are replaced, thus when the user presses the key you get the code for the key, not the raw character sequence. Examples: > getchar() == "\" getchar() == "\" < This example redefines "f" to ignore case: > :nmap f :call FindChar() :function FindChar() : let c = nr2char(getchar()) : while col('.') < col('$') - 1 : normal l : if getline('.')[col('.') - 1] ==? c : break : endif : endwhile :endfunction < getcharmod() *getcharmod()* The result is a Number which is the state of the modifiers for the last obtained character with getchar() or in another way. These values are added together: 2 shift 4 control 8 alt (meta) 16 meta (when it's different from ALT) 32 mouse double click 64 mouse triple click 96 mouse quadruple click (== 32 + 64) 128 command (Macintosh only) Only the modifiers that have not been included in the character itself are obtained. Thus Shift-a results in "A" without a modifier. Returns 0 if no modifiers are used. *getcharpos()* getcharpos({expr}) Get the position for String {expr}. Same as |getpos()| but the column number in the returned List is a character index instead of a byte index. Example: With the cursor on '세' in line 5 with text "여보세요": > getcharpos('.') returns [0, 5, 3, 0] getpos('.') returns [0, 5, 7, 0] < Can also be used as a |method|: > GetMark()->getcharpos() getcharsearch() *getcharsearch()* Return the current character search information as a {dict} with the following entries: char character previously used for a character search (|t|, |f|, |T|, or |F|); empty string if no character search has been performed forward direction of character search; 1 for forward, 0 for backward until type of character search; 1 for a |t| or |T| character search, 0 for an |f| or |F| character search This can be useful to always have |;| and |,| search forward/backward regardless of the direction of the previous character search: > :nnoremap ; getcharsearch().forward ? ';' : ',' :nnoremap , getcharsearch().forward ? ',' : ';' < Also see |setcharsearch()|. getcharstr([expr]) *getcharstr()* Get a single character from the user or input stream as a string. If [expr] is omitted, wait until a character is available. If [expr] is 0 or false, only get a character when one is available. Return an empty string otherwise. If [expr] is 1 or true, only check if a character is available, it is not consumed. Return an empty string if no character is available. Otherwise this works like |getchar()|, except that a number result is converted to a string. getcmdcompltype() *getcmdcompltype()* Return the type of the current command-line completion. Only works when the command line is being edited, thus requires use of |c_CTRL-\_e| or |c_CTRL-R_=|. See |:command-completion| for the return string. Also see |getcmdtype()|, |setcmdpos()| and |getcmdline()|. Returns an empty string when completion is not defined. getcmdline() *getcmdline()* Return the current command-line. Only works when the command line is being edited, thus requires use of |c_CTRL-\_e| or |c_CTRL-R_=|. Example: > :cmap eescape(getcmdline(), ' \') < Also see |getcmdtype()|, |getcmdpos()| and |setcmdpos()|. Returns an empty string when entering a password or using |inputsecret()|. getcmdpos() *getcmdpos()* Return the position of the cursor in the command line as a byte count. The first column is 1. Only works when editing the command line, thus requires use of |c_CTRL-\_e| or |c_CTRL-R_=| or an expression mapping. Returns 0 otherwise. Also see |getcmdtype()|, |setcmdpos()| and |getcmdline()|. getcmdscreenpos() *getcmdscreenpos()* Return the screen position of the cursor in the command line as a byte count. The first column is 1. Instead of |getcmdpos()|, it adds the prompt position. Only works when editing the command line, thus requires use of |c_CTRL-\_e| or |c_CTRL-R_=| or an expression mapping. Returns 0 otherwise. Also see |getcmdpos()|, |setcmdpos()|. getcmdtype() *getcmdtype()* Return the current command-line type. Possible return values are: : normal Ex command > debug mode command |debug-mode| / forward search command ? backward search command @ |input()| command - |:insert| or |:append| command = |i_CTRL-R_=| Only works when editing the command line, thus requires use of |c_CTRL-\_e| or |c_CTRL-R_=| or an expression mapping. Returns an empty string otherwise. Also see |getcmdpos()|, |setcmdpos()| and |getcmdline()|. getcmdwintype() *getcmdwintype()* Return the current |command-line-window| type. Possible return values are the same as |getcmdtype()|. Returns an empty string when not in the command-line window. getcompletion({pat}, {type} [, {filtered}]) *getcompletion()* Return a list of command-line completion matches. The String {type} argument specifies what for. The following completion types are supported: arglist file names in argument list augroup autocmd groups buffer buffer names behave :behave suboptions cmdline |cmdline-completion| result color color schemes command Ex command compiler compilers cscope |:cscope| suboptions diff_buffer |:diffget| and |:diffput| completion dir directory names environment environment variable names event autocommand events expression Vim expression file file and directory names file_in_path file and directory names in |'path'| filetype filetype names |'filetype'| function function name help help subjects highlight highlight groups history :history suboptions locale locale names (as output of locale -a) mapclear buffer argument mapping mapping name menu menus messages |:messages| suboptions option options packadd optional package |pack-add| names shellcmd Shell command sign |:sign| suboptions syntax syntax file names |'syntax'| syntime |:syntime| suboptions tag tags tag_listfiles tags, file names user user names var user variables If {pat} is an empty string, then all the matches are returned. Otherwise only items matching {pat} are returned. See |wildcards| for the use of special characters in {pat}. If the optional {filtered} flag is set to 1, then 'wildignore' is applied to filter the results. Otherwise all the matches are returned. The 'wildignorecase' option always applies. If {type} is "cmdline", then the |cmdline-completion| result is returned. For example, to complete the possible values after a ":call" command: > echo getcompletion('call ', 'cmdline') < If there are no matches, an empty list is returned. An invalid value for {type} produces an error. Can also be used as a |method|: > GetPattern()->getcompletion('color') < *getcurpos()* getcurpos([{winid}]) Get the position of the cursor. This is like getpos('.'), but includes an extra "curswant" in the list: [0, lnum, col, off, curswant] ~ The "curswant" number is the preferred column when moving the cursor vertically. Also see |getcursorcharpos()| and |getpos()|. The first "bufnum" item is always zero. The byte position of the cursor is returned in 'col'. To get the character position, use |getcursorcharpos()|. The optional {winid} argument can specify the window. It can be the window number or the |window-ID|. The last known cursor position is returned, this may be invalid for the current value of the buffer if it is not the current window. If {winid} is invalid a list with zeroes is returned. This can be used to save and restore the cursor position: > let save_cursor = getcurpos() MoveTheCursorAround call setpos('.', save_cursor) < Note that this only works within the window. See |winrestview()| for restoring more state. Can also be used as a |method|: > GetWinid()->getcurpos() < *getcursorcharpos()* getcursorcharpos([{winid}]) Same as |getcurpos()| but the column number in the returned List is a character index instead of a byte index. Example: With the cursor on '보' in line 3 with text "여보세요": > getcursorcharpos() returns [0, 3, 2, 0, 3] getcurpos() returns [0, 3, 4, 0, 3] < Can also be used as a |method|: > GetWinid()->getcursorcharpos() getcwd([{winnr} [, {tabnr}]]) *getcwd()* With no arguments, returns the name of the effective |current-directory|. With {winnr} or {tabnr} the working directory of that scope is returned, and 'autochdir' is ignored. Tabs and windows are identified by their respective numbers, 0 means current tab or window. Missing tab number implies 0. Thus the following are equivalent: > getcwd(0) getcwd(0, 0) < If {winnr} is -1 it is ignored, only the tab is resolved. {winnr} can be the window number or the |window-ID|. If both {winnr} and {tabnr} are -1 the global working directory is returned. Throw error if the arguments are invalid. |E5000| |E5001| |E5002| Can also be used as a |method|: > GetWinnr()->getcwd() getenv({name}) *getenv()* Return the value of environment variable {name}. The {name} argument is a string, without a leading '$'. Example: > myHome = getenv('HOME') < When the variable does not exist |v:null| is returned. That is different from a variable set to an empty string. See also |expr-env|. Can also be used as a |method|: > GetVarname()->getenv() getfontname([{name}]) *getfontname()* Without an argument returns the name of the normal font being used. Like what is used for the Normal highlight group |hl-Normal|. With an argument a check is done whether String {name} is a valid font name. If not then an empty string is returned. Otherwise the actual font name is returned, or {name} if the GUI does not support obtaining the real name. Only works when the GUI is running, thus not in your vimrc or gvimrc file. Use the |GUIEnter| autocommand to use this function just after the GUI has started. getfperm({fname}) *getfperm()* The result is a String, which is the read, write, and execute permissions of the given file {fname}. If {fname} does not exist or its directory cannot be read, an empty string is returned. The result is of the form "rwxrwxrwx", where each group of "rwx" flags represent, in turn, the permissions of the owner of the file, the group the file belongs to, and other users. If a user does not have a given permission the flag for this is replaced with the string "-". Examples: > :echo getfperm("/etc/passwd") :echo getfperm(expand("~/.config/nvim/init.vim")) < This will hopefully (from a security point of view) display the string "rw-r--r--" or even "rw-------". Can also be used as a |method|: > GetFilename()->getfperm() < For setting permissions use |setfperm()|. getfsize({fname}) *getfsize()* The result is a Number, which is the size in bytes of the given file {fname}. If {fname} is a directory, 0 is returned. If the file {fname} can't be found, -1 is returned. If the size of {fname} is too big to fit in a Number then -2 is returned. Can also be used as a |method|: > GetFilename()->getfsize() getftime({fname}) *getftime()* The result is a Number, which is the last modification time of the given file {fname}. The value is measured as seconds since 1st Jan 1970, and may be passed to strftime(). See also |localtime()| and |strftime()|. If the file {fname} can't be found -1 is returned. Can also be used as a |method|: > GetFilename()->getftime() getftype({fname}) *getftype()* The result is a String, which is a description of the kind of file of the given file {fname}. If {fname} does not exist an empty string is returned. Here is a table over different kinds of files and their results: Normal file "file" Directory "dir" Symbolic link "link" Block device "bdev" Character device "cdev" Socket "socket" FIFO "fifo" All other "other" Example: > getftype("/home") < Note that a type such as "link" will only be returned on systems that support it. On some systems only "dir" and "file" are returned. Can also be used as a |method|: > GetFilename()->getftype() getjumplist([{winnr} [, {tabnr}]]) *getjumplist()* Returns the |jumplist| for the specified window. Without arguments use the current window. With {winnr} only use this window in the current tab page. {winnr} can also be a |window-ID|. With {winnr} and {tabnr} use the window in the specified tab page. If {winnr} or {tabnr} is invalid, an empty list is returned. The returned list contains two entries: a list with the jump locations and the last used jump position number in the list. Each entry in the jump location list is a dictionary with the following entries: bufnr buffer number col column number coladd column offset for 'virtualedit' filename filename if available lnum line number Can also be used as a |method|: > GetWinnr()->getjumplist() < *getline()* getline({lnum} [, {end}]) Without {end} the result is a String, which is line {lnum} from the current buffer. Example: > getline(1) < When {lnum} is a String that doesn't start with a digit, |line()| is called to translate the String into a Number. To get the line under the cursor: > getline(".") < When {lnum} is a number smaller than 1 or bigger than the number of lines in the buffer, an empty string is returned. When {end} is given the result is a |List| where each item is a line from the current buffer in the range {lnum} to {end}, including line {end}. {end} is used in the same way as {lnum}. Non-existing lines are silently omitted. When {end} is before {lnum} an empty |List| is returned. Example: > :let start = line('.') :let end = search("^$") - 1 :let lines = getline(start, end) < Can also be used as a |method|: > ComputeLnum()->getline() < To get lines from another buffer see |getbufline()| getloclist({nr} [, {what}]) *getloclist()* Returns a |List| with all the entries in the location list for window {nr}. {nr} can be the window number or the |window-ID|. When {nr} is zero the current window is used. For a location list window, the displayed location list is returned. For an invalid window number {nr}, an empty list is returned. Otherwise, same as |getqflist()|. If the optional {what} dictionary argument is supplied, then returns the items listed in {what} as a dictionary. Refer to |getqflist()| for the supported items in {what}. In addition to the items supported by |getqflist()| in {what}, the following item is supported by |getloclist()|: filewinid id of the window used to display files from the location list. This field is applicable only when called from a location list window. See |location-list-file-window| for more details. Returns a |Dictionary| with default values if there is no location list for the window {nr}. Returns an empty Dictionary if window {nr} does not exist. Examples (See also |getqflist-examples|): > :echo getloclist(3, {'all': 0}) :echo getloclist(5, {'filewinid': 0}) getmarklist([{buf}]) *getmarklist()* Without the {buf} argument returns a |List| with information about all the global marks. |mark| If the optional {buf} argument is specified, returns the local marks defined in buffer {buf}. For the use of {buf}, see |bufname()|. If {buf} is invalid, an empty list is returned. Each item in the returned List is a |Dict| with the following: mark name of the mark prefixed by "'" pos a |List| with the position of the mark: [bufnum, lnum, col, off] Refer to |getpos()| for more information. file file name Refer to |getpos()| for getting information about a specific mark. Can also be used as a |method|: > GetBufnr()->getmarklist() getmatches([{win}]) *getmatches()* Returns a |List| with all matches previously defined for the current window by |matchadd()| and the |:match| commands. |getmatches()| is useful in combination with |setmatches()|, as |setmatches()| can restore a list of matches saved by |getmatches()|. If {win} is specified, use the window with this number or window ID instead of the current window. If {win} is invalid, an empty list is returned. Example: > :echo getmatches() < [{'group': 'MyGroup1', 'pattern': 'TODO', 'priority': 10, 'id': 1}, {'group': 'MyGroup2', 'pattern': 'FIXME', 'priority': 10, 'id': 2}] > :let m = getmatches() :call clearmatches() :echo getmatches() < [] > :call setmatches(m) :echo getmatches() < [{'group': 'MyGroup1', 'pattern': 'TODO', 'priority': 10, 'id': 1}, {'group': 'MyGroup2', 'pattern': 'FIXME', 'priority': 10, 'id': 2}] > :unlet m < getmousepos() *getmousepos()* Returns a Dictionary with the last known position of the mouse. This can be used in a mapping for a mouse click. The items are: screenrow screen row screencol screen column winid Window ID of the click winrow row inside "winid" wincol column inside "winid" line text line inside "winid" column text column inside "winid" All numbers are 1-based. If not over a window, e.g. when in the command line, then only "screenrow" and "screencol" are valid, the others are zero. When on the status line below a window or the vertical separater right of a window, the "line" and "column" values are zero. When the position is after the text then "column" is the length of the text in bytes plus one. If the mouse is over a focusable floating window then that window is used. When using |getchar()| the Vim variables |v:mouse_lnum|, |v:mouse_col| and |v:mouse_winid| also provide these values. *getpid()* getpid() Return a Number which is the process ID of the Vim process. This is a unique number, until Vim exits. *getpos()* getpos({expr}) Get the position for String {expr}. For possible values of {expr} see |line()|. For getting the cursor position see |getcurpos()|. The result is a |List| with four numbers: [bufnum, lnum, col, off] "bufnum" is zero, unless a mark like '0 or 'A is used, then it is the buffer number of the mark. "lnum" and "col" are the position in the buffer. The first column is 1. The "off" number is zero, unless 'virtualedit' is used. Then it is the offset in screen columns from the start of the character. E.g., a position within a or after the last character. Note that for '< and '> Visual mode matters: when it is "V" (visual line mode) the column of '< is zero and the column of '> is a large number. The column number in the returned List is the byte position within the line. To get the character position in the line, use |getcharpos()|. The column number can be very large, e.g. 2147483647, in which case it means "after the end of the line". If {expr} is invalid, returns a list with all zeros. This can be used to save and restore the position of a mark: > let save_a_mark = getpos("'a") ... call setpos("'a", save_a_mark) < Also see |getcharpos()|, |getcurpos()| and |setpos()|. Can also be used as a |method|: > GetMark()->getpos() getqflist([{what}]) *getqflist()* Returns a |List| with all the current quickfix errors. Each list item is a dictionary with these entries: bufnr number of buffer that has the file name, use bufname() to get the name module module name lnum line number in the buffer (first line is 1) end_lnum end of line number if the item is multiline col column number (first column is 1) end_col end of column number if the item has range vcol |TRUE|: "col" is visual column |FALSE|: "col" is byte index nr error number pattern search pattern used to locate the error text description of the error type type of the error, 'E', '1', etc. valid |TRUE|: recognized error message When there is no error list or it's empty, an empty list is returned. Quickfix list entries with a non-existing buffer number are returned with "bufnr" set to zero (Note: some functions accept buffer number zero for the alternate buffer, you may need to explicitly check for zero). Useful application: Find pattern matches in multiple files and do something with them: > :vimgrep /theword/jg *.c :for d in getqflist() : echo bufname(d.bufnr) ':' d.lnum '=' d.text :endfor < If the optional {what} dictionary argument is supplied, then returns only the items listed in {what} as a dictionary. The following string items are supported in {what}: changedtick get the total number of changes made to the list |quickfix-changedtick| context get the |quickfix-context| efm errorformat to use when parsing "lines". If not present, then the 'errorformat' option value is used. id get information for the quickfix list with |quickfix-ID|; zero means the id for the current list or the list specified by "nr" idx get information for the quickfix entry at this index in the list specified by 'id' or 'nr'. If set to zero, then uses the current entry. See |quickfix-index| items quickfix list entries lines parse a list of lines using 'efm' and return the resulting entries. Only a |List| type is accepted. The current quickfix list is not modified. See |quickfix-parse|. nr get information for this quickfix list; zero means the current quickfix list and "$" means the last quickfix list qfbufnr number of the buffer displayed in the quickfix window. Returns 0 if the quickfix buffer is not present. See |quickfix-buffer|. size number of entries in the quickfix list title get the list title |quickfix-title| winid get the quickfix |window-ID| all all of the above quickfix properties Non-string items in {what} are ignored. To get the value of a particular item, set it to zero. If "nr" is not present then the current quickfix list is used. If both "nr" and a non-zero "id" are specified, then the list specified by "id" is used. To get the number of lists in the quickfix stack, set "nr" to "$" in {what}. The "nr" value in the returned dictionary contains the quickfix stack size. When "lines" is specified, all the other items except "efm" are ignored. The returned dictionary contains the entry "items" with the list of entries. The returned dictionary contains the following entries: changedtick total number of changes made to the list |quickfix-changedtick| context quickfix list context. See |quickfix-context| If not present, set to "". id quickfix list ID |quickfix-ID|. If not present, set to 0. idx index of the quickfix entry in the list. If not present, set to 0. items quickfix list entries. If not present, set to an empty list. nr quickfix list number. If not present, set to 0 qfbufnr number of the buffer displayed in the quickfix window. If not present, set to 0. size number of entries in the quickfix list. If not present, set to 0. title quickfix list title text. If not present, set to "". winid quickfix |window-ID|. If not present, set to 0 Examples (See also |getqflist-examples|): > :echo getqflist({'all': 1}) :echo getqflist({'nr': 2, 'title': 1}) :echo getqflist({'lines' : ["F1:10:L10"]}) < getreg([{regname} [, 1 [, {list}]]]) *getreg()* The result is a String, which is the contents of register {regname}. Example: > :let cliptext = getreg('*') < When register {regname} was not set the result is an empty string. The {regname} argument must be a string. getreg('=') returns the last evaluated value of the expression register. (For use in maps.) getreg('=', 1) returns the expression itself, so that it can be restored with |setreg()|. For other registers the extra argument is ignored, thus you can always give it. If {list} is present and |TRUE|, the result type is changed to |List|. Each list item is one text line. Use it if you care about zero bytes possibly present inside register: without third argument both NLs and zero bytes are represented as NLs (see |NL-used-for-Nul|). When the register was not set an empty list is returned. If {regname} is not specified, |v:register| is used. Can also be used as a |method|: > GetRegname()->getreg() getreginfo([{regname}]) *getreginfo()* Returns detailed information about register {regname} as a Dictionary with the following entries: regcontents List of lines contained in register {regname}, like |getreg|({regname}, 1, 1). regtype the type of register {regname}, as in |getregtype()|. isunnamed Boolean flag, v:true if this register is currently pointed to by the unnamed register. points_to for the unnamed register, gives the single letter name of the register currently pointed to (see |quotequote|). For example, after deleting a line with `dd`, this field will be "1", which is the register that got the deleted text. The {regname} argument is a string. If {regname} is invalid or not set, an empty Dictionary will be returned. If {regname} is not specified, |v:register| is used. The returned Dictionary can be passed to |setreg()|. Can also be used as a |method|: > GetRegname()->getreginfo() getregtype([{regname}]) *getregtype()* The result is a String, which is type of register {regname}. The value will be one of: "v" for |charwise| text "V" for |linewise| text "{width}" for |blockwise-visual| text "" for an empty or unknown register is one character with value 0x16. The {regname} argument is a string. If {regname} is not specified, |v:register| is used. Can also be used as a |method|: > GetRegname()->getregtype() gettabinfo([{tabnr}]) *gettabinfo()* If {tabnr} is not specified, then information about all the tab pages is returned as a |List|. Each List item is a |Dictionary|. Otherwise, {tabnr} specifies the tab page number and information about that one is returned. If the tab page does not exist an empty List is returned. Each List item is a |Dictionary| with the following entries: tabnr tab page number. variables a reference to the dictionary with tabpage-local variables windows List of |window-ID|s in the tab page. Can also be used as a |method|: > GetTabnr()->gettabinfo() gettabvar({tabnr}, {varname} [, {def}]) *gettabvar()* Get the value of a tab-local variable {varname} in tab page {tabnr}. |t:var| Tabs are numbered starting with one. The {varname} argument is a string. When {varname} is empty a dictionary with all tab-local variables is returned. Note that the name without "t:" must be used. When the tab or variable doesn't exist {def} or an empty string is returned, there is no error message. Can also be used as a |method|: > GetTabnr()->gettabvar(varname) gettabwinvar({tabnr}, {winnr}, {varname} [, {def}]) *gettabwinvar()* Get the value of window-local variable {varname} in window {winnr} in tab page {tabnr}. The {varname} argument is a string. When {varname} is empty a dictionary with all window-local variables is returned. When {varname} is equal to "&" get the values of all window-local options in a |Dictionary|. Otherwise, when {varname} starts with "&" get the value of a window-local option. Note that {varname} must be the name without "w:". Tabs are numbered starting with one. For the current tabpage use |getwinvar()|. {winnr} can be the window number or the |window-ID|. When {winnr} is zero the current window is used. This also works for a global option, buffer-local option and window-local option, but it doesn't work for a global variable or buffer-local variable. When the tab, window or variable doesn't exist {def} or an empty string is returned, there is no error message. Examples: > :let list_is_on = gettabwinvar(1, 2, '&list') :echo "myvar = " .. gettabwinvar(3, 1, 'myvar') < To obtain all window-local variables use: > gettabwinvar({tabnr}, {winnr}, '&') < Can also be used as a |method|: > GetTabnr()->gettabwinvar(winnr, varname) gettagstack([{winnr}]) *gettagstack()* The result is a Dict, which is the tag stack of window {winnr}. {winnr} can be the window number or the |window-ID|. When {winnr} is not specified, the current window is used. When window {winnr} doesn't exist, an empty Dict is returned. The returned dictionary contains the following entries: curidx Current index in the stack. When at top of the stack, set to (length + 1). Index of bottom of the stack is 1. items List of items in the stack. Each item is a dictionary containing the entries described below. length Number of entries in the stack. Each item in the stack is a dictionary with the following entries: bufnr buffer number of the current jump from cursor position before the tag jump. See |getpos()| for the format of the returned list. matchnr current matching tag number. Used when multiple matching tags are found for a name. tagname name of the tag See |tagstack| for more information about the tag stack. Can also be used as a |method|: > GetWinnr()->gettagstack() getwininfo([{winid}]) *getwininfo()* Returns information about windows as a |List| with Dictionaries. If {winid} is given Information about the window with that ID is returned, as a |List| with one item. If the window does not exist the result is an empty list. Without {winid} information about all the windows in all the tab pages is returned. Each List item is a |Dictionary| with the following entries: botline last complete displayed buffer line bufnr number of buffer in the window height window height (excluding winbar) loclist 1 if showing a location list quickfix 1 if quickfix or location list window terminal 1 if a terminal window tabnr tab page number topline first displayed buffer line variables a reference to the dictionary with window-local variables width window width winbar 1 if the window has a toolbar, 0 otherwise wincol leftmost screen column of the window; "col" from |win_screenpos()| textoff number of columns occupied by any 'foldcolumn', 'signcolumn' and line number in front of the text winid |window-ID| winnr window number winrow topmost screen line of the window; "row" from |win_screenpos()| Can also be used as a |method|: > GetWinnr()->getwininfo() getwinpos([{timeout}]) *getwinpos()* The result is a |List| with two numbers, the result of |getwinposx()| and |getwinposy()| combined: [x-pos, y-pos] {timeout} can be used to specify how long to wait in msec for a response from the terminal. When omitted 100 msec is used. Use a longer time for a remote terminal. When using a value less than 10 and no response is received within that time, a previously reported position is returned, if available. This can be used to poll for the position and do some work in the meantime: > while 1 let res = getwinpos(1) if res[0] >= 0 break endif " Do some work here endwhile < Can also be used as a |method|: > GetTimeout()->getwinpos() < *getwinposx()* getwinposx() The result is a Number, which is the X coordinate in pixels of the left hand side of the GUI Vim window. The result will be -1 if the information is not available. The value can be used with `:winpos`. *getwinposy()* getwinposy() The result is a Number, which is the Y coordinate in pixels of the top of the GUI Vim window. The result will be -1 if the information is not available. The value can be used with `:winpos`. getwinvar({winnr}, {varname} [, {def}]) *getwinvar()* Like |gettabwinvar()| for the current tabpage. Examples: > :let list_is_on = getwinvar(2, '&list') :echo "myvar = " .. getwinvar(1, 'myvar') < Can also be used as a |method|: > GetWinnr()->getwinvar(varname) < glob({expr} [, {nosuf} [, {list} [, {alllinks}]]]) *glob()* Expand the file wildcards in {expr}. See |wildcards| for the use of special characters. Unless the optional {nosuf} argument is given and is |TRUE|, the 'suffixes' and 'wildignore' options apply: Names matching one of the patterns in 'wildignore' will be skipped and 'suffixes' affect the ordering of matches. 'wildignorecase' always applies. When {list} is present and it is |TRUE| the result is a |List| with all matching files. The advantage of using a List is, you also get filenames containing newlines correctly. Otherwise the result is a String and when there are several matches, they are separated by characters. If the expansion fails, the result is an empty String or List. You can also use |readdir()| if you need to do complicated things, such as limiting the number of matches. A name for a non-existing file is not included. A symbolic link is only included if it points to an existing file. However, when the {alllinks} argument is present and it is |TRUE| then all symbolic links are included. For most systems backticks can be used to get files names from any external command. Example: > :let tagfiles = glob("`find . -name tags -print`") :let &tags = substitute(tagfiles, "\n", ",", "g") < The result of the program inside the backticks should be one item per line. Spaces inside an item are allowed. See |expand()| for expanding special Vim variables. See |system()| for getting the raw output of an external command. Can also be used as a |method|: > GetExpr()->glob() glob2regpat({string}) *glob2regpat()* Convert a file pattern, as used by glob(), into a search pattern. The result can be used to match with a string that is a file name. E.g. > if filename =~ glob2regpat('Make*.mak') < This is equivalent to: > if filename =~ '^Make.*\.mak$' < When {string} is an empty string the result is "^$", match an empty string. Note that the result depends on the system. On MS-Windows a backslash usually means a path separator. Can also be used as a |method|: > GetExpr()->glob2regpat() < *globpath()* globpath({path}, {expr} [, {nosuf} [, {list} [, {allinks}]]]) Perform glob() for String {expr} on all directories in {path} and concatenate the results. Example: > :echo globpath(&rtp, "syntax/c.vim") < {path} is a comma-separated list of directory names. Each directory name is prepended to {expr} and expanded like with |glob()|. A path separator is inserted when needed. To add a comma inside a directory name escape it with a backslash. Note that on MS-Windows a directory may have a trailing backslash, remove it if you put a comma after it. If the expansion fails for one of the directories, there is no error message. Unless the optional {nosuf} argument is given and is |TRUE|, the 'suffixes' and 'wildignore' options apply: Names matching one of the patterns in 'wildignore' will be skipped and 'suffixes' affect the ordering of matches. When {list} is present and it is |TRUE| the result is a |List| with all matching files. The advantage of using a List is, you also get filenames containing newlines correctly. Otherwise the result is a String and when there are several matches, they are separated by characters. Example: > :echo globpath(&rtp, "syntax/c.vim", 0, 1) < {allinks} is used as with |glob()|. The "**" item can be used to search in a directory tree. For example, to find all "README.txt" files in the directories in 'runtimepath' and below: > :echo globpath(&rtp, "**/README.txt") < Upwards search and limiting the depth of "**" is not supported, thus using 'path' will not always work properly. Can also be used as a |method|, the base is passed as the second argument: > GetExpr()->globpath(&rtp) < *has()* has({feature}) Returns 1 if {feature} is supported, 0 otherwise. The {feature} argument is a feature name like "nvim-0.2.1" or "win32", see below. See also |exists()|. If the code has a syntax error, then Nvim may skip the rest of the line and miss |:endif|. > if has('feature') | let x = this->breaks->without->the->feature | endif < Put |:if| and |:endif| on separate lines to avoid the syntax error. > if has('feature') let x = this->breaks->without->the->feature endif < Vim's compile-time feature-names (prefixed with "+") are not recognized because Nvim is always compiled with all possible features. |feature-compile| Feature names can be: 1. Nvim version. For example the "nvim-0.2.1" feature means that Nvim is version 0.2.1 or later: > :if has("nvim-0.2.1") < 2. Runtime condition or other pseudo-feature. For example the "win32" feature checks if the current system is Windows: > :if has("win32") < *feature-list* List of supported pseudo-feature names: acl |ACL| support. bsd BSD system (not macOS, use "mac" for that). clipboard |clipboard| provider is available. fname_case Case in file names matters (for Darwin and MS-Windows this is not present). iconv Can use |iconv()| for conversion. linux Linux system. mac MacOS system. nvim This is Nvim. python3 Legacy Vim |python3| interface. |has-python| pythonx Legacy Vim |python_x| interface. |has-pythonx| sun SunOS system. ttyin input is a terminal (tty). ttyout output is a terminal (tty). unix Unix system. *vim_starting* True during |startup|. win32 Windows system (32 or 64 bit). win64 Windows system (64 bit). wsl WSL (Windows Subsystem for Linux) system. *has-patch* 3. Vim patch. For example the "patch123" feature means that Vim patch 123 at the current |v:version| was included: > :if v:version > 602 || v:version == 602 && has("patch148") < 4. Vim version. For example the "patch-7.4.237" feature means that Nvim is Vim-compatible to version 7.4.237 or later. > :if has("patch-7.4.237") has_key({dict}, {key}) *has_key()* The result is a Number, which is TRUE if |Dictionary| {dict} has an entry with key {key}. FALSE otherwise. The {key} argument is a string. Can also be used as a |method|: > mydict->has_key(key) haslocaldir([{winnr} [, {tabnr}]]) *haslocaldir()* The result is a Number, which is 1 when the window has set a local path via |:lcd| or when {winnr} is -1 and the tabpage has set a local path via |:tcd|, otherwise 0. Tabs and windows are identified by their respective numbers, 0 means current tab or window. Missing argument implies 0. Thus the following are equivalent: > haslocaldir() haslocaldir(0) haslocaldir(0, 0) < With {winnr} use that window in the current tabpage. With {winnr} and {tabnr} use the window in that tabpage. {winnr} can be the window number or the |window-ID|. If {winnr} is -1 it is ignored, only the tab is resolved. Throw error if the arguments are invalid. |E5000| |E5001| |E5002| Can also be used as a |method|: > GetWinnr()->haslocaldir() hasmapto({what} [, {mode} [, {abbr}]]) *hasmapto()* The result is a Number, which is TRUE if there is a mapping that contains {what} in somewhere in the rhs (what it is mapped to) and this mapping exists in one of the modes indicated by {mode}. The arguments {what} and {mode} are strings. When {abbr} is there and it is |TRUE| use abbreviations instead of mappings. Don't forget to specify Insert and/or Command-line mode. Both the global mappings and the mappings local to the current buffer are checked for a match. If no matching mapping is found FALSE is returned. The following characters are recognized in {mode}: n Normal mode v Visual and Select mode x Visual mode s Select mode o Operator-pending mode i Insert mode l Language-Argument ("r", "f", "t", etc.) c Command-line mode When {mode} is omitted, "nvo" is used. This function is useful to check if a mapping already exists to a function in a Vim script. Example: > :if !hasmapto('\ABCdoit') : map d \ABCdoit :endif < This installs the mapping to "\ABCdoit" only if there isn't already a mapping to "\ABCdoit". Can also be used as a |method|: > GetRHS()->hasmapto() histadd({history}, {item}) *histadd()* Add the String {item} to the history {history} which can be one of: *hist-names* "cmd" or ":" command line history "search" or "/" search pattern history "expr" or "=" typed expression history "input" or "@" input line history "debug" or ">" debug command history empty the current or last used history The {history} string does not need to be the whole name, one character is sufficient. If {item} does already exist in the history, it will be shifted to become the newest entry. The result is a Number: TRUE if the operation was successful, otherwise FALSE is returned. Example: > :call histadd("input", strftime("%Y %b %d")) :let date=input("Enter date: ") < This function is not available in the |sandbox|. Can also be used as a |method|, the base is passed as the second argument: > GetHistory()->histadd('search') histdel({history} [, {item}]) *histdel()* Clear {history}, i.e. delete all its entries. See |hist-names| for the possible values of {history}. If the parameter {item} evaluates to a String, it is used as a regular expression. All entries matching that expression will be removed from the history (if there are any). Upper/lowercase must match, unless "\c" is used |/\c|. If {item} evaluates to a Number, it will be interpreted as an index, see |:history-indexing|. The respective entry will be removed if it exists. The result is TRUE for a successful operation, otherwise FALSE is returned. Examples: Clear expression register history: > :call histdel("expr") < Remove all entries starting with "*" from the search history: > :call histdel("/", '^\*') < The following three are equivalent: > :call histdel("search", histnr("search")) :call histdel("search", -1) :call histdel("search", '^' .. histget("search", -1) .. '$') < To delete the last search pattern and use the last-but-one for the "n" command and 'hlsearch': > :call histdel("search", -1) :let @/ = histget("search", -1) < Can also be used as a |method|: > GetHistory()->histdel() histget({history} [, {index}]) *histget()* The result is a String, the entry with Number {index} from {history}. See |hist-names| for the possible values of {history}, and |:history-indexing| for {index}. If there is no such entry, an empty String is returned. When {index} is omitted, the most recent item from the history is used. Examples: Redo the second last search from history. > :execute '/' .. histget("search", -2) < Define an Ex command ":H {num}" that supports re-execution of the {num}th entry from the output of |:history|. > :command -nargs=1 H execute histget("cmd", 0+) < Can also be used as a |method|: > GetHistory()->histget() histnr({history}) *histnr()* The result is the Number of the current entry in {history}. See |hist-names| for the possible values of {history}. If an error occurred, -1 is returned. Example: > :let inp_index = histnr("expr") < Can also be used as a |method|: > GetHistory()->histnr() < hlexists({name}) *hlexists()* The result is a Number, which is TRUE if a highlight group called {name} exists. This is when the group has been defined in some way. Not necessarily when highlighting has been defined for it, it may also have been used for a syntax item. Can also be used as a |method|: > GetName()->hlexists() < *hlID()* hlID({name}) The result is a Number, which is the ID of the highlight group with name {name}. When the highlight group doesn't exist, zero is returned. This can be used to retrieve information about the highlight group. For example, to get the background color of the "Comment" group: > :echo synIDattr(synIDtrans(hlID("Comment")), "bg") < Can also be used as a |method|: > GetName()->hlID() hostname() *hostname()* The result is a String, which is the name of the machine on which Vim is currently running. Machine names greater than 256 characters long are truncated. iconv({string}, {from}, {to}) *iconv()* The result is a String, which is the text {string} converted from encoding {from} to encoding {to}. When the conversion completely fails an empty string is returned. When some characters could not be converted they are replaced with "?". The encoding names are whatever the iconv() library function can accept, see ":!man 3 iconv". Note that Vim uses UTF-8 for all Unicode encodings, conversion from/to UCS-2 is automatically changed to use UTF-8. You cannot use UCS-2 in a string anyway, because of the NUL bytes. Can also be used as a |method|: > GetText()->iconv('latin1', 'utf-8') < *indent()* indent({lnum}) The result is a Number, which is indent of line {lnum} in the current buffer. The indent is counted in spaces, the value of 'tabstop' is relevant. {lnum} is used just like in |getline()|. When {lnum} is invalid -1 is returned. Can also be used as a |method|: > GetLnum()->indent() index({object}, {expr} [, {start} [, {ic}]]) *index()* If {object} is a |List| return the lowest index where the item has a value equal to {expr}. There is no automatic conversion, so the String "4" is different from the Number 4. And the Number 4 is different from the Float 4.0. The value of 'ignorecase' is not used here, case always matters. If {object} is a |Blob| return the lowest index where the byte value is equal to {expr}. If {start} is given then start looking at the item with index {start} (may be negative for an item relative to the end). When {ic} is given and it is |TRUE|, ignore case. Otherwise case must match. -1 is returned when {expr} is not found in {object}. Example: > :let idx = index(words, "the") :if index(numbers, 123) >= 0 < Can also be used as a |method|: > GetObject()->index(what) input({prompt} [, {text} [, {completion}]]) *input()* input({opts}) The result is a String, which is whatever the user typed on the command-line. The {prompt} argument is either a prompt string, or a blank string (for no prompt). A '\n' can be used in the prompt to start a new line. In the second form it accepts a single dictionary with the following keys, any of which may be omitted: Key Default Description ~ prompt "" Same as {prompt} in the first form. default "" Same as {text} in the first form. completion nothing Same as {completion} in the first form. cancelreturn "" The value returned when the dialog is cancelled. highlight nothing Highlight handler: |Funcref|. The highlighting set with |:echohl| is used for the prompt. The input is entered just like a command-line, with the same editing commands and mappings. There is a separate history for lines typed for input(). Example: > :if input("Coffee or beer? ") == "beer" : echo "Cheers!" :endif < If the optional {text} argument is present and not empty, this is used for the default reply, as if the user typed this. Example: > :let color = input("Color? ", "white") < The optional {completion} argument specifies the type of completion supported for the input. Without it completion is not performed. The supported completion types are the same as that can be supplied to a user-defined command using the "-complete=" argument. Refer to |:command-completion| for more information. Example: > let fname = input("File: ", "", "file") < *input()-highlight* *E5400* *E5402* The optional `highlight` key allows specifying function which will be used for highlighting user input. This function receives user input as its only argument and must return a list of 3-tuples [hl_start_col, hl_end_col + 1, hl_group] where hl_start_col is the first highlighted column, hl_end_col is the last highlighted column (+ 1!), hl_group is |:hi| group used for highlighting. *E5403* *E5404* *E5405* *E5406* Both hl_start_col and hl_end_col + 1 must point to the start of the multibyte character (highlighting must not break multibyte characters), hl_end_col + 1 may be equal to the input length. Start column must be in range [0, len(input)), end column must be in range (hl_start_col, len(input)], sections must be ordered so that next hl_start_col is greater then or equal to previous hl_end_col. Example (try some input with parentheses): > highlight RBP1 guibg=Red ctermbg=red highlight RBP2 guibg=Yellow ctermbg=yellow highlight RBP3 guibg=Green ctermbg=green highlight RBP4 guibg=Blue ctermbg=blue let g:rainbow_levels = 4 function! RainbowParens(cmdline) let ret = [] let i = 0 let lvl = 0 while i < len(a:cmdline) if a:cmdline[i] is# '(' call add(ret, [i, i + 1, 'RBP' .. ((lvl % g:rainbow_levels) + 1)]) let lvl += 1 elseif a:cmdline[i] is# ')' let lvl -= 1 call add(ret, [i, i + 1, 'RBP' .. ((lvl % g:rainbow_levels) + 1)]) endif let i += 1 endwhile return ret endfunction call input({'prompt':'>','highlight':'RainbowParens'}) < Highlight function is called at least once for each new displayed input string, before command-line is redrawn. It is expected that function is pure for the duration of one input() call, i.e. it produces the same output for the same input, so output may be memoized. Function is run like under |:silent| modifier. If the function causes any errors, it will be skipped for the duration of the current input() call. Highlighting is disabled if command-line contains arabic characters. NOTE: This function must not be used in a startup file, for the versions that only run in GUI mode (e.g., the Win32 GUI). Note: When input() is called from within a mapping it will consume remaining characters from that mapping, because a mapping is handled like the characters were typed. Use |inputsave()| before input() and |inputrestore()| after input() to avoid that. Another solution is to avoid that further characters follow in the mapping, e.g., by using |:execute| or |:normal|. Example with a mapping: > :nmap \x :call GetFoo():exe "/" .. Foo :function GetFoo() : call inputsave() : let g:Foo = input("enter search pattern: ") : call inputrestore() :endfunction < Can also be used as a |method|: > GetPrompt()->input() inputlist({textlist}) *inputlist()* {textlist} must be a |List| of strings. This |List| is displayed, one string per line. The user will be prompted to enter a number, which is returned. The user can also select an item by clicking on it with the mouse, if the mouse is enabled in the command line ('mouse' is "a" or includes "c"). For the first string 0 is returned. When clicking above the first item a negative number is returned. When clicking on the prompt one more than the length of {textlist} is returned. Make sure {textlist} has less than 'lines' entries, otherwise it won't work. It's a good idea to put the entry number at the start of the string. And put a prompt in the first item. Example: > let color = inputlist(['Select color:', '1. red', \ '2. green', '3. blue']) < Can also be used as a |method|: > GetChoices()->inputlist() inputrestore() *inputrestore()* Restore typeahead that was saved with a previous |inputsave()|. Should be called the same number of times inputsave() is called. Calling it more often is harmless though. Returns TRUE when there is nothing to restore, FALSE otherwise. inputsave() *inputsave()* Preserve typeahead (also from mappings) and clear it, so that a following prompt gets input from the user. Should be followed by a matching inputrestore() after the prompt. Can be used several times, in which case there must be just as many inputrestore() calls. Returns TRUE when out of memory, FALSE otherwise. inputsecret({prompt} [, {text}]) *inputsecret()* This function acts much like the |input()| function with but two exceptions: a) the user's response will be displayed as a sequence of asterisks ("*") thereby keeping the entry secret, and b) the user's response will not be recorded on the input |history| stack. The result is a String, which is whatever the user actually typed on the command-line in response to the issued prompt. NOTE: Command-line completion is not supported. Can also be used as a |method|: > GetPrompt()->inputsecret() insert({object}, {item} [, {idx}]) *insert()* When {object} is a |List| or a |Blob| insert {item} at the start of it. If {idx} is specified insert {item} before the item with index {idx}. If {idx} is zero it goes before the first item, just like omitting {idx}. A negative {idx} is also possible, see |list-index|. -1 inserts just before the last item. Returns the resulting |List| or |Blob|. Examples: > :let mylist = insert([2, 3, 5], 1) :call insert(mylist, 4, -1) :call insert(mylist, 6, len(mylist)) < The last example can be done simpler with |add()|. Note that when {item} is a |List| it is inserted as a single item. Use |extend()| to concatenate |Lists|. Can also be used as a |method|: > mylist->insert(item) interrupt() *interrupt()* Interrupt script execution. It works more or less like the user typing CTRL-C, most commands won't execute and control returns to the user. This is useful to abort execution from lower down, e.g. in an autocommand. Example: > :function s:check_typoname(file) : if fnamemodify(a:file, ':t') == '[' : echomsg 'Maybe typo' : call interrupt() : endif :endfunction :au BufWritePre * call s:check_typoname(expand('')) invert({expr}) *invert()* Bitwise invert. The argument is converted to a number. A List, Dict or Float argument causes an error. Example: > :let bits = invert(bits) < Can also be used as a |method|: > :let bits = bits->invert() isdirectory({directory}) *isdirectory()* The result is a Number, which is |TRUE| when a directory with the name {directory} exists. If {directory} doesn't exist, or isn't a directory, the result is |FALSE|. {directory} is any expression, which is used as a String. Can also be used as a |method|: > GetName()->isdirectory() isinf({expr}) *isinf()* Return 1 if {expr} is a positive infinity, or -1 a negative infinity, otherwise 0. > :echo isinf(1.0 / 0.0) < 1 > :echo isinf(-1.0 / 0.0) < -1 Can also be used as a |method|: > Compute()->isinf() islocked({expr}) *islocked()* *E786* The result is a Number, which is |TRUE| when {expr} is the name of a locked variable. The string argument {expr} must be the name of a variable, |List| item or |Dictionary| entry, not the variable itself! Example: > :let alist = [0, ['a', 'b'], 2, 3] :lockvar 1 alist :echo islocked('alist') " 1 :echo islocked('alist[1]') " 0 < When {expr} is a variable that does not exist you get an error message. Use |exists()| to check for existence. Can also be used as a |method|: > GetName()->islocked() id({expr}) *id()* Returns a |String| which is a unique identifier of the container type (|List|, |Dict|, |Blob| and |Partial|). It is guaranteed that for the mentioned types `id(v1) ==# id(v2)` returns true iff `type(v1) == type(v2) && v1 is v2`. Note that |v:_null_string|, |v:_null_list|, |v:_null_dict| and |v:_null_blob| have the same `id()` with different types because they are internally represented as NULL pointers. `id()` returns a hexadecimal representanion of the pointers to the containers (i.e. like `0x994a40`), same as `printf("%p", {expr})`, but it is advised against counting on the exact format of the return value. It is not guaranteed that `id(no_longer_existing_container)` will not be equal to some other `id()`: new containers may reuse identifiers of the garbage-collected ones. items({dict}) *items()* Return a |List| with all the key-value pairs of {dict}. Each |List| item is a list with two items: the key of a {dict} entry and the value of this entry. The |List| is in arbitrary order. Also see |keys()| and |values()|. Example: > for [key, value] in items(mydict) echo key .. ': ' .. value endfor < Can also be used as a |method|: > mydict->items() isnan({expr}) *isnan()* Return |TRUE| if {expr} is a float with value NaN. > echo isnan(0.0 / 0.0) < 1 Can also be used as a |method|: > Compute()->isnan() jobpid({job}) *jobpid()* Return the PID (process id) of |job-id| {job}. jobresize({job}, {width}, {height}) *jobresize()* Resize the pseudo terminal window of |job-id| {job} to {width} columns and {height} rows. Fails if the job was not started with `"pty":v:true`. jobstart({cmd} [, {opts}]) *jobstart()* Spawns {cmd} as a job. If {cmd} is a List it runs directly (no 'shell'). If {cmd} is a String it runs in the 'shell', like this: > :call jobstart(split(&shell) + split(&shellcmdflag) + ['{cmd}']) < (See |shell-unquoting| for details.) Example: > :call jobstart('nvim -h', {'on_stdout':{j,d,e->append(line('.'),d)}}) < Returns |job-id| on success, 0 on invalid arguments (or job table is full), -1 if {cmd}[0] or 'shell' is not executable. The returned job-id is a valid |channel-id| representing the job's stdio streams. Use |chansend()| (or |rpcnotify()| and |rpcrequest()| if "rpc" was enabled) to send data to stdin and |chanclose()| to close the streams without stopping the job. See |job-control| and |RPC|. NOTE: on Windows if {cmd} is a List: - cmd[0] must be an executable (not a "built-in"). If it is in $PATH it can be called by name, without an extension: > :call jobstart(['ping', 'neovim.io']) < If it is a full or partial path, extension is required: > :call jobstart(['System32\ping.exe', 'neovim.io']) < - {cmd} is collapsed to a string of quoted args as expected by CommandLineToArgvW https://msdn.microsoft.com/bb776391 unless cmd[0] is some form of "cmd.exe". *jobstart-env* The job environment is initialized as follows: $NVIM is set to |v:servername| of the parent Nvim $NVIM_LISTEN_ADDRESS is unset $NVIM_LOG_FILE is unset $VIM is unset $VIMRUNTIME is unset You can set these with the `env` option. *jobstart-options* {opts} is a dictionary with these keys: clear_env: (boolean) `env` defines the job environment exactly, instead of merging current environment. cwd: (string, default=|current-directory|) Working directory of the job. detach: (boolean) Detach the job process: it will not be killed when Nvim exits. If the process exits before Nvim, `on_exit` will be invoked. env: (dict) Map of environment variable name:value pairs extending (or replacing with |clear_env|) the current environment. |jobstart-env| height: (number) Height of the `pty` terminal. |on_exit|: (function) Callback invoked when the job exits. |on_stdout|: (function) Callback invoked when the job emits stdout data. |on_stderr|: (function) Callback invoked when the job emits stderr data. overlapped: (boolean) Set FILE_FLAG_OVERLAPPED for the standard input/output passed to the child process. Normally you do not need to set this. (Only available on MS-Windows, On other platforms, this option is silently ignored.) pty: (boolean) Connect the job to a new pseudo terminal, and its streams to the master file descriptor. `on_stdout` receives all output, `on_stderr` is ignored. |terminal-start| rpc: (boolean) Use |msgpack-rpc| to communicate with the job over stdio. Then `on_stdout` is ignored, but `on_stderr` can still be used. stderr_buffered: (boolean) Collect data until EOF (stream closed) before invoking `on_stderr`. |channel-buffered| stdout_buffered: (boolean) Collect data until EOF (stream closed) before invoking `on_stdout`. |channel-buffered| stdin: (string) Either "pipe" (default) to connect the job's stdin to a channel or "null" to disconnect stdin. width: (number) Width of the `pty` terminal. {opts} is passed as |self| dictionary to the callback; the caller may set other keys to pass application-specific data. Returns: - |channel-id| on success - 0 on invalid arguments - -1 if {cmd}[0] is not executable. See also |job-control|, |channel|, |msgpack-rpc|. jobstop({id}) *jobstop()* Stop |job-id| {id} by sending SIGTERM to the job process. If the process does not terminate after a timeout then SIGKILL will be sent. When the job terminates its |on_exit| handler (if any) will be invoked. See |job-control|. Returns 1 for valid job id, 0 for invalid id, including jobs have exited or stopped. jobwait({jobs} [, {timeout}]) *jobwait()* Waits for jobs and their |on_exit| handlers to complete. {jobs} is a List of |job-id|s to wait for. {timeout} is the maximum waiting time in milliseconds. If omitted or -1, wait forever. Timeout of 0 can be used to check the status of a job: > let running = jobwait([{job-id}], 0)[0] == -1 < During jobwait() callbacks for jobs not in the {jobs} list may be invoked. The screen will not redraw unless |:redraw| is invoked by a callback. Returns a list of len({jobs}) integers, where each integer is the status of the corresponding job: Exit-code, if the job exited -1 if the timeout was exceeded -2 if the job was interrupted (by |CTRL-C|) -3 if the job-id is invalid join({list} [, {sep}]) *join()* Join the items in {list} together into one String. When {sep} is specified it is put in between the items. If {sep} is omitted a single space is used. Note that {sep} is not added at the end. You might want to add it there too: > let lines = join(mylist, "\n") .. "\n" < String items are used as-is. |Lists| and |Dictionaries| are converted into a string like with |string()|. The opposite function is |split()|. Can also be used as a |method|: > mylist->join() json_decode({expr}) *json_decode()* Convert {expr} from JSON object. Accepts |readfile()|-style list as the input, as well as regular string. May output any Vim value. In the following cases it will output |msgpack-special-dict|: 1. Dictionary contains duplicate key. 2. Dictionary contains empty key. 3. String contains NUL byte. Two special dictionaries: for dictionary and for string will be emitted in case string with NUL byte was a dictionary key. Note: function treats its input as UTF-8 always. The JSON standard allows only a few encodings, of which UTF-8 is recommended and the only one required to be supported. Non-UTF-8 characters are an error. Can also be used as a |method|: > ReadObject()->json_decode() json_encode({expr}) *json_encode()* Convert {expr} into a JSON string. Accepts |msgpack-special-dict| as the input. Will not convert |Funcref|s, mappings with non-string keys (can be created as |msgpack-special-dict|), values with self-referencing containers, strings which contain non-UTF-8 characters, pseudo-UTF-8 strings which contain codepoints reserved for surrogate pairs (such strings are not valid UTF-8 strings). Non-printable characters are converted into "\u1234" escapes or special escapes like "\t", other are dumped as-is. |Blob|s are converted to arrays of the individual bytes. Can also be used as a |method|: > GetObject()->json_encode() keys({dict}) *keys()* Return a |List| with all the keys of {dict}. The |List| is in arbitrary order. Also see |items()| and |values()|. Can also be used as a |method|: > mydict->keys() < *len()* *E701* len({expr}) The result is a Number, which is the length of the argument. When {expr} is a String or a Number the length in bytes is used, as with |strlen()|. When {expr} is a |List| the number of items in the |List| is returned. When {expr} is a |Blob| the number of bytes is returned. When {expr} is a |Dictionary| the number of entries in the |Dictionary| is returned. Otherwise an error is given and returns zero. Can also be used as a |method|: > mylist->len() < *libcall()* *E364* *E368* libcall({libname}, {funcname}, {argument}) Call function {funcname} in the run-time library {libname} with single argument {argument}. This is useful to call functions in a library that you especially made to be used with Vim. Since only one argument is possible, calling standard library functions is rather limited. The result is the String returned by the function. If the function returns NULL, this will appear as an empty string "" to Vim. If the function returns a number, use libcallnr()! If {argument} is a number, it is passed to the function as an int; if {argument} is a string, it is passed as a null-terminated string. libcall() allows you to write your own 'plug-in' extensions to Vim without having to recompile the program. It is NOT a means to call system functions! If you try to do so Vim will very probably crash. For Win32, the functions you write must be placed in a DLL and use the normal C calling convention (NOT Pascal which is used in Windows System DLLs). The function must take exactly one parameter, either a character pointer or a long integer, and must return a character pointer or NULL. The character pointer returned must point to memory that will remain valid after the function has returned (e.g. in static data in the DLL). If it points to allocated memory, that memory will leak away. Using a static buffer in the function should work, it's then freed when the DLL is unloaded. WARNING: If the function returns a non-valid pointer, Vim may crash! This also happens if the function returns a number, because Vim thinks it's a pointer. For Win32 systems, {libname} should be the filename of the DLL without the ".DLL" suffix. A full path is only required if the DLL is not in the usual places. For Unix: When compiling your own plugins, remember that the object code must be compiled as position-independent ('PIC'). Examples: > :echo libcall("libc.so", "getenv", "HOME") < Can also be used as a |method|, the base is passed as the third argument: > GetValue()->libcall("libc.so", "getenv") < *libcallnr()* libcallnr({libname}, {funcname}, {argument}) Just like |libcall()|, but used for a function that returns an int instead of a string. Examples: > :echo libcallnr("/usr/lib/libc.so", "getpid", "") :call libcallnr("libc.so", "printf", "Hello World!\n") :call libcallnr("libc.so", "sleep", 10) < Can also be used as a |method|, the base is passed as the third argument: > GetValue()->libcallnr("libc.so", "printf") < line({expr} [, {winid}]) *line()* The result is a Number, which is the line number of the file position given with {expr}. The {expr} argument is a string. The accepted positions are: . the cursor position $ the last line in the current buffer 'x position of mark x (if the mark is not set, 0 is returned) w0 first line visible in current window (one if the display isn't updated, e.g. in silent Ex mode) w$ last line visible in current window (this is one less than "w0" if no lines are visible) v In Visual mode: the start of the Visual area (the cursor is the end). When not in Visual mode returns the cursor position. Differs from |'<| in that it's updated right away. Note that a mark in another file can be used. The line number then applies to another buffer. To get the column number use |col()|. To get both use |getpos()|. With the optional {winid} argument the values are obtained for that window instead of the current window. Returns 0 for invalid values of {expr} and {winid}. Examples: > line(".") line number of the cursor line(".", winid) idem, in window "winid" line("'t") line number of mark t line("'" .. marker) line number of mark marker < To jump to the last known position when opening a file see |last-position-jump|. Can also be used as a |method|: > GetValue()->line() line2byte({lnum}) *line2byte()* Return the byte count from the start of the buffer for line {lnum}. This includes the end-of-line character, depending on the 'fileformat' option for the current buffer. The first line returns 1. UTF-8 encoding is used, 'fileencoding' is ignored. This can also be used to get the byte count for the line just below the last line: > line2byte(line("$") + 1) < This is the buffer size plus one. If 'fileencoding' is empty it is the file size plus one. {lnum} is used like with |getline()|. When {lnum} is invalid -1 is returned. Also see |byte2line()|, |go| and |:goto|. Can also be used as a |method|: > GetLnum()->line2byte() lispindent({lnum}) *lispindent()* Get the amount of indent for line {lnum} according the lisp indenting rules, as with 'lisp'. The indent is counted in spaces, the value of 'tabstop' is relevant. {lnum} is used just like in |getline()|. When {lnum} is invalid, -1 is returned. Can also be used as a |method|: > GetLnum()->lispindent() list2str({list} [, {utf8}]) *list2str()* Convert each number in {list} to a character string can concatenate them all. Examples: > list2str([32]) returns " " list2str([65, 66, 67]) returns "ABC" < The same can be done (slowly) with: > join(map(list, {nr, val -> nr2char(val)}), '') < |str2list()| does the opposite. UTF-8 encoding is always used, {utf8} option has no effect, and exists only for backwards-compatibility. With UTF-8 composing characters work as expected: > list2str([97, 769]) returns "á" < Returns an empty string on error. Can also be used as a |method|: > GetList()->list2str() localtime() *localtime()* Return the current time, measured as seconds since 1st Jan 1970. See also |strftime()|, |strptime()| and |getftime()|. log({expr}) *log()* Return the natural logarithm (base e) of {expr} as a |Float|. {expr} must evaluate to a |Float| or a |Number| in the range (0, inf]. Returns 0.0 if {expr} is not a |Float| or a |Number|. Examples: > :echo log(10) < 2.302585 > :echo log(exp(5)) < 5.0 Can also be used as a |method|: > Compute()->log() log10({expr}) *log10()* Return the logarithm of Float {expr} to base 10 as a |Float|. {expr} must evaluate to a |Float| or a |Number|. Returns 0.0 if {expr} is not a |Float| or a |Number|. Examples: > :echo log10(1000) < 3.0 > :echo log10(0.01) < -2.0 Can also be used as a |method|: > Compute()->log10() luaeval({expr} [, {expr}]) Evaluate Lua expression {expr} and return its result converted to Vim data structures. See |lua-eval| for more details. Can also be used as a |method|: > GetExpr()->luaeval() map({expr1}, {expr2}) *map()* {expr1} must be a |List|, |Blob| or |Dictionary|. Replace each item in {expr1} with the result of evaluating {expr2}. For a |Blob| each byte is replaced. {expr2} must be a |string| or |Funcref|. If {expr2} is a |string|, inside {expr2} |v:val| has the value of the current item. For a |Dictionary| |v:key| has the key of the current item and for a |List| |v:key| has the index of the current item. For a |Blob| |v:key| has the index of the current byte. Example: > :call map(mylist, '"> " .. v:val .. " <"') < This puts "> " before and " <" after each item in "mylist". Note that {expr2} is the result of an expression and is then used as an expression again. Often it is good to use a |literal-string| to avoid having to double backslashes. You still have to double ' quotes If {expr2} is a |Funcref| it is called with two arguments: 1. The key or the index of the current item. 2. the value of the current item. The function must return the new value of the item. Example that changes each value by "key-value": > func KeyValue(key, val) return a:key .. '-' .. a:val endfunc call map(myDict, function('KeyValue')) < It is shorter when using a |lambda|: > call map(myDict, {key, val -> key .. '-' .. val}) < If you do not use "val" you can leave it out: > call map(myDict, {key -> 'item: ' .. key}) < If you do not use "key" you can use a short name: > call map(myDict, {_, val -> 'item: ' .. val}) < The operation is done in-place. If you want a |List| or |Dictionary| to remain unmodified make a copy first: > :let tlist = map(copy(mylist), ' v:val .. "\t"') < Returns {expr1}, the |List|, |Blob| or |Dictionary| that was filtered. When an error is encountered while evaluating {expr2} no further items in {expr1} are processed. When {expr2} is a Funcref errors inside a function are ignored, unless it was defined with the "abort" flag. Can also be used as a |method|: > mylist->map(expr2) maparg({name} [, {mode} [, {abbr} [, {dict}]]]) *maparg()* When {dict} is omitted or zero: Return the rhs of mapping {name} in mode {mode}. The returned String has special characters translated like in the output of the ":map" command listing. When there is no mapping for {name}, an empty String is returned if {dict} is FALSE, otherwise returns an empty Dict. When the mapping for {name} is empty, then "" is returned. The {name} can have special key names, like in the ":map" command. {mode} can be one of these strings: "n" Normal "v" Visual (including Select) "o" Operator-pending "i" Insert "c" Cmd-line "s" Select "x" Visual "l" langmap |language-mapping| "t" Terminal "" Normal, Visual and Operator-pending When {mode} is omitted, the modes for "" are used. When {abbr} is there and it is |TRUE| use abbreviations instead of mappings. When {dict} is there and it is |TRUE| return a dictionary containing all the information of the mapping with the following items: "lhs" The {lhs} of the mapping. "rhs" The {rhs} of the mapping as typed. "silent" 1 for a |:map-silent| mapping, else 0. "noremap" 1 if the {rhs} of the mapping is not remappable. "script" 1 if mapping was defined with