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builtin.txt
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builtin.txt
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*builtin.txt* For Vim version 8.2. Last change: 2022 Jun 16
VIM REFERENCE MANUAL by Bram Moolenaar
Builtin functions *builtin-functions*
Note: Expression evaluation can be disabled at compile time. If this has been
done, the builtin functions are not available. See |+eval| and
|no-eval-feature|.
1. Overview |builtin-function-list|
2. Details |builtin-function-details|
3. Feature list |feature-list|
4. 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
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} [, {msg} [, {lnum} [, {context}]]]])
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}
autocmd_add({acmds}) Bool add a list of autocmds and groups
autocmd_delete({acmds}) Bool delete a list of autocmds and groups
autocmd_get([{opts}]) List return a list of autocmds
balloon_gettext() String current text in the balloon
balloon_show({expr}) none show {expr} inside the balloon
balloon_split({msg}) List split {msg} as used for a balloon
blob2list({blob}) List convert {blob} into a list of numbers
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({buf}) Number |TRUE| if buffer {buf} exists
buflisted({buf}) Number |TRUE| if buffer {buf} is listed
bufload({buf}) Number load buffer {buf} if not loaded yet
bufloaded({buf}) Number |TRUE| if buffer {buf} is loaded
bufname([{buf}]) String Name of the buffer {buf}
bufnr([{buf} [, {create}]]) Number Number of the buffer {buf}
bufwinid({buf}) Number window ID of buffer {buf}
bufwinnr({buf}) Number window number of buffer {buf}
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
ch_canread({handle}) Number check if there is something to read
ch_close({handle}) none close {handle}
ch_close_in({handle}) none close in part of {handle}
ch_evalexpr({handle}, {expr} [, {options}])
any evaluate {expr} on JSON {handle}
ch_evalraw({handle}, {string} [, {options}])
any evaluate {string} on raw {handle}
ch_getbufnr({handle}, {what}) Number get buffer number for {handle}/{what}
ch_getjob({channel}) Job get the Job of {channel}
ch_info({handle}) String info about channel {handle}
ch_log({msg} [, {handle}]) none write {msg} in the channel log file
ch_logfile({fname} [, {mode}]) none start logging channel activity
ch_open({address} [, {options}])
Channel open a channel to {address}
ch_read({handle} [, {options}]) String read from {handle}
ch_readblob({handle} [, {options}])
Blob read Blob from {handle}
ch_readraw({handle} [, {options}])
String read raw from {handle}
ch_sendexpr({handle}, {expr} [, {options}])
any send {expr} over JSON {handle}
ch_sendraw({handle}, {expr} [, {options}])
any send {expr} over raw {handle}
ch_setoptions({handle}, {options})
none set options for {handle}
ch_status({handle} [, {options}])
String status of channel {handle}
changenr() Number current change number
char2nr({expr} [, {utf8}]) Number ASCII/UTF-8 value of first char in {expr}
charclass({string}) Number character class of {string}
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
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}
did_filetype() Number |TRUE| if FileType autocmd 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
echoraw({expr}) none output {expr} as-is
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 {command} and get the output
exepath({expr}) String full path of the command {expr}
exists({expr}) Number |TRUE| if {expr} exists
exists_compiled({expr}) Number |TRUE| if {expr} exists at compile time
exp({expr}) Float exponential of {expr}
expand({expr} [, {nosuf} [, {list}]])
any expand special keywords in {expr}
expandcmd({string} [, {options}])
String expand {string} like with `:edit`
extend({expr1}, {expr2} [, {expr3}])
List/Dict insert items of {expr2} into {expr1}
extendnew({expr1}, {expr2} [, {expr3}])
List/Dict like |extend()| but creates a new
List or Dictionary
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/Blob/String
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
flattennew({list} [, {maxdepth}])
List flatten a copy of {list}
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}
foreground() Number bring the Vim window to the foreground
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}
getimstatus() Number |TRUE| if the IME status is active
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}
gettext({text}) String lookup translation of {text}
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 the Vim window
getwinposy() Number Y coord in pixels of the 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} [, {check}]) 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 |:tcd|
hasmapto({what} [, {mode} [, {abbr}]])
Number |TRUE| if mapping to {what} exists
histadd({history}, {item}) Number add an item to a history
histdel({history} [, {item}]) Number 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
hlID({name}) Number syntax ID of highlight group {name}
hlexists({name}) Number |TRUE| if highlight group {name} exists
hlget([{name} [, {resolve}]]) List get highlight group attributes
hlset({list}) Number set highlight group attributes
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
inputdialog({prompt} [, {text} [, {completion}]])
String like input() but in a GUI dialog
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
isabsolutepath({path}) Number |TRUE| if {path} is an absolute path
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
items({dict}) List key-value pairs in {dict}
job_getchannel({job}) Channel get the channel handle for {job}
job_info([{job}]) Dict get information about {job}
job_setoptions({job}, {options}) none set options for {job}
job_start({command} [, {options}])
Job start a job
job_status({job}) String get the status of {job}
job_stop({job} [, {how}]) Number stop {job}
join({list} [, {sep}]) String join {list} items into one String
js_decode({string}) any decode JS style JSON
js_encode({expr}) String encode JS style JSON
json_decode({string}) any decode JSON
json_encode({expr}) String encode 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}
list2blob({list}) Blob turn {list} of numbers into a Blob
list2str({list} [, {utf8}]) String turn {list} of numbers into a String
listener_add({callback} [, {buf}])
Number add a callback to listen to changes
listener_flush([{buf}]) none invoke listener callbacks
listener_remove({id}) none remove a listener callback
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/Blob/String
change each item in {expr1} to {expr2}
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}
maplist([{abbr}]) List list of all mappings, a dict for each
mapnew({expr1}, {expr2}) List/Dict/Blob/String
like |map()| but creates a new List or
Dictionary
mapset({mode}, {abbr}, {dict}) none restore mapping from |maparg()| result
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_info({name} [, {mode}]) Dict get menu item information
min({expr}) Number minimum value of items in {expr}
mkdir({name} [, {path} [, {prot}]])
Number create directory {name}
mode([expr]) String current editing mode
mzeval({expr}) any evaluate |MzScheme| expression
nextnonblank({lnum}) Number line nr of non-blank line >= {lnum}
nr2char({expr} [, {utf8}]) String single char with ASCII/UTF-8 value {expr}
or({expr}, {expr}) Number bitwise OR
pathshorten({expr} [, {len}]) String shorten directory names in a path
perleval({expr}) any evaluate |Perl| expression
popup_atcursor({what}, {options}) Number create popup window near the cursor
popup_beval({what}, {options}) Number create popup window for 'ballooneval'
popup_clear() none close all popup windows
popup_close({id} [, {result}]) none close popup window {id}
popup_create({what}, {options}) Number create a popup window
popup_dialog({what}, {options}) Number create a popup window used as a dialog
popup_filter_menu({id}, {key}) Number filter for a menu popup window
popup_filter_yesno({id}, {key}) Number filter for a dialog popup window
popup_findinfo() Number get window ID of info popup window
popup_findpreview() Number get window ID of preview popup window
popup_getoptions({id}) Dict get options of popup window {id}
popup_getpos({id}) Dict get position of popup window {id}
popup_hide({id}) none hide popup menu {id}
popup_list() List get a list of window IDs of all popups
popup_locate({row}, {col}) Number get window ID of popup at position
popup_menu({what}, {options}) Number create a popup window used as a menu
popup_move({id}, {options}) none set position of popup window {id}
popup_notification({what}, {options})
Number create a notification popup window
popup_setoptions({id}, {options})
none set options for popup window {id}
popup_settext({id}, {text}) none set the text of popup window {id}
popup_show({id}) none unhide popup window {id}
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
prop_add({lnum}, {col}, {props}) none add one text property
prop_add_list({props}, [[{lnum}, {col}, {end-lnum}, {end-col}], ...])
none add multiple text properties
prop_clear({lnum} [, {lnum-end} [, {props}]])
none remove all text properties
prop_find({props} [, {direction}])
Dict search for a text property
prop_list({lnum} [, {props}]) List text properties in {lnum}
prop_remove({props} [, {lnum} [, {lnum-end}]])
Number remove a text property
prop_type_add({name}, {props}) none define a new property type
prop_type_change({name}, {props})
none change an existing property type
prop_type_delete({name} [, {props}])
none delete a property type
prop_type_get({name} [, {props}])
Dict get property type values
prop_type_list([{props}]) List get list of property types
pum_getpos() Dict position and size of pum if visible
pumvisible() Number whether popup menu is visible
py3eval({expr}) any evaluate |python3| expression
pyeval({expr}) any evaluate |Python| 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}
readblob({fname}) Blob read a |Blob| from {fname}
readdir({dir} [, {expr} [, {dict}]])
List file names in {dir} selected by {expr}
readdirex({dir} [, {expr} [, {dict}]])
List file info 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_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
remote_expr({server}, {string} [, {idvar} [, {timeout}]])
String send expression
remote_foreground({server}) Number bring Vim server to the foreground
remote_peek({serverid} [, {retvar}])
Number check for reply string
remote_read({serverid} [, {timeout}])
String read reply string
remote_send({server}, {string} [, {idvar}])
String send key sequence
remote_startserver({name}) none become server {name}
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
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 search stats
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}
server2client({clientid}, {string})
Number send reply string
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})
none set {varname} in buffer {buf} to {val}
setcellwidths({list}) none set character cell width overrides
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}) none set {varname} in tab page {nr} to {val}
settabwinvar({tabnr}, {winnr}, {varname}, {val})
none 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}) none 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}
slice({expr}, {start} [, {end}]) String, List or Blob
slice of a String, List or Blob
sort({list} [, {how} [, {dict}]])
List sort {list}, compare with {how}
sound_clear() none stop playing all sounds
sound_playevent({name} [, {callback}])
Number play an event sound
sound_playfile({path} [, {callback}])
Number play sound file {path}
sound_stop({id}) none stop playing sound {id}
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()|
state([{what}]) String current state of Vim
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
strcharlen({expr}) Number character length of the String {expr}
strcharpart({str}, {start} [, {len} [, {skipcc}]])
String {len} characters of {str} at
character {start}
strchars({expr} [, {skipcc}]) Number character count of the String {expr}
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({expr} [, {input}]) String output of shell command/filter {expr}
systemlist({expr} [, {input}]) List output of shell command/filter {expr}
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
tagfiles() List tags files used
taglist({expr} [, {filename}]) List list of tags matching {expr}
tan({expr}) Float tangent of {expr}
tanh({expr}) Float hyperbolic tangent of {expr}
tempname() String name for a temporary file
term_dumpdiff({filename}, {filename} [, {options}])
Number display difference between two dumps
term_dumpload({filename} [, {options}])
Number displaying a screen dump
term_dumpwrite({buf}, {filename} [, {options}])
none dump terminal window contents
term_getaltscreen({buf}) Number get the alternate screen flag
term_getansicolors({buf}) List get ANSI palette in GUI color mode
term_getattr({attr}, {what}) Number get the value of attribute {what}
term_getcursor({buf}) List get the cursor position of a terminal
term_getjob({buf}) Job get the job associated with a terminal
term_getline({buf}, {row}) String get a line of text from a terminal
term_getscrolled({buf}) Number get the scroll count of a terminal
term_getsize({buf}) List get the size of a terminal
term_getstatus({buf}) String get the status of a terminal
term_gettitle({buf}) String get the title of a terminal
term_gettty({buf}, [{input}]) String get the tty name of a terminal
term_list() List get the list of terminal buffers
term_scrape({buf}, {row}) List get row of a terminal screen
term_sendkeys({buf}, {keys}) none send keystrokes to a terminal
term_setansicolors({buf}, {colors})
none set ANSI palette in GUI color mode
term_setapi({buf}, {expr}) none set |terminal-api| function name prefix
term_setkill({buf}, {how}) none set signal to stop job in terminal
term_setrestore({buf}, {command}) none set command to restore terminal
term_setsize({buf}, {rows}, {cols})
none set the size of a terminal
term_start({cmd} [, {options}]) Number open a terminal window and run a job
term_wait({buf} [, {time}]) Number wait for screen to be updated
terminalprops() Dict properties of the terminal
test_alloc_fail({id}, {countdown}, {repeat})
none make memory allocation fail
test_autochdir() none enable 'autochdir' during startup
test_feedinput({string}) none add key sequence to input buffer
test_garbagecollect_now() none free memory right now for testing
test_garbagecollect_soon() none free memory soon for testing
test_getvalue({string}) any get value of an internal variable
test_gui_event({event}, {args}) bool generate a GUI event for testing
test_ignore_error({expr}) none ignore a specific error
test_null_blob() Blob null value for testing
test_null_channel() Channel null value for testing
test_null_dict() Dict null value for testing
test_null_function() Funcref null value for testing
test_null_job() Job null value for testing
test_null_list() List null value for testing
test_null_partial() Funcref null value for testing
test_null_string() String null value for testing
test_option_not_set({name}) none reset flag indicating option was set
test_override({expr}, {val}) none test with Vim internal overrides
test_refcount({expr}) Number get the reference count of {expr}
test_setmouse({row}, {col}) none set the mouse position for testing
test_settime({expr}) none set current time for testing
test_srand_seed([seed]) none set seed for testing srand()
test_unknown() any unknown value for testing
test_void() any void value 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({expr}) Number type of value {expr}
typename({expr}) String representation of the type of {expr}
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} [, {list}]) Number or List
screen column of cursor or mark
virtcol2col({winid}, {lnum}, {col})
Number byte index of a character on screen
visualmode([expr]) String last visual mode used
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 with 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()
< {only available when compiled with the |+float| feature}
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]. Otherwise acos() returns "nan".
Examples: >
:echo acos(0)
< 1.570796 >
:echo acos(-0.5)
< 2.094395
Can also be used as a |method|: >
Compute()->acos()
< {only available when compiled with the |+float| feature}
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.
Also see `or()` and `xor()`.
Example: >
:let flag = and(bits, 0x80)
< Can also be used as a |method|: >
:let flag = bits->and(0x80)
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.
Any type of item is accepted and converted to a String.
{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. In |Vim9| script an invalid argument or
negative number results in an error. Example: >
:let failed = append(line('$'), "# THE END")
:let failed = append(0, ["Chapter 1", "the beginning"])
< Can also be used as a |method| after a List, the base is
passed as the second argument: >
mylist->append(lnum)
appendbufline({buf}, {lnum}, {text}) *appendbufline()*
Like |append()| but append the text in buffer {buf}.
This function works only for loaded buffers. First call
|bufload()| if needed.
For the use of {buf}, see |bufname()|.
{lnum} is the line number to append below. Note that using
|line()| would use the current buffer, not the one appending
to. Use "$" to append at the end of the buffer. Other string
values are not supported.
On success 0 is returned, on failure 1 is returned.
In |Vim9| script an error is given for an invalid {lnum}.
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, the base is
passed as the second argument: >
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 .. '<CR>'
: 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()
<
{only available when compiled with the |+float| feature}
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()
<
{only available when compiled with the |+float| feature}
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)
<
{only available when compiled with the |+float| feature}
autocmd_add({acmds}) *autocmd_add()*
Adds a List of autocmds and autocmd groups.
The {acmds} argument is a List where each item is a Dict with
the following optional items:
bufnr buffer number to add a buffer-local autocmd.
If this item is specified, then the "pattern"
item is ignored.
cmd Ex command to execute for this autocmd event
event autocmd event name. Refer to |autocmd-events|.
This can be either a String with a single
event name or a List of event names.
group autocmd group name. Refer to |autocmd-groups|.
If this group doesn't exist then it is
created. If not specified or empty, then the
default group is used.
nested boolean flag, set to v:true to add a nested
autocmd. Refer to |autocmd-nested|.
once boolean flag, set to v:true to add an autocmd
which executes only once. Refer to
|autocmd-once|.
pattern autocmd pattern string. Refer to
|autocmd-patterns|. If "bufnr" item is
present, then this item is ignored. This can
be a String with a single pattern or a List of
patterns.
replace boolean flag, set to v:true to remove all the
commands associated with the specified autocmd
event and group and add the {cmd}. This is
useful to avoid adding the same command
multiple times for an autocmd event in a group.
Returns v:true on success and v:false on failure.
Examples: >
" Create a buffer-local autocmd for buffer 5
let acmd = {}
let acmd.group = 'MyGroup'
let acmd.event = 'BufEnter'
let acmd.bufnr = 5
let acmd.cmd = 'call BufEnterFunc()'
call autocmd_add([acmd])
Can also be used as a |method|: >
GetAutocmdList()->autocmd_add()
<
autocmd_delete({acmds}) *autocmd_delete()*
Deletes a List of autocmds and autocmd groups.
The {acmds} argument is a List where each item is a Dict with
the following optional items:
bufnr buffer number to delete a buffer-local autocmd.
If this item is specified, then the "pattern"
item is ignored.
cmd Ex command for this autocmd event
event autocmd event name. Refer to |autocmd-events|.
If '*' then all the autocmd events in this
group are deleted.
group autocmd group name. Refer to |autocmd-groups|.