Builtin

1. Overview builtin-function-list

2. Details builtin-function-details

echo abs(1.456)

echo abs(-5.456)

echo abs(-4)

Compute()->abs()

:echo acos(0)

:echo acos(-0.5)

Compute()->acos()

:let alist = add([1, 2, 3], item)
:call add(mylist, "woodstock")

mylist->add(val1)->add(val2)

:let flag = and(bits, 0x80)

:let flag = bits->and(0x80)

:lua print(vim.inspect(vim.fn.api_info()))

:let failed = append(line('$'), "# THE END")
:let failed = append(0, ["Chapter 1", "the beginning"])

mylist->append(lnum)

:let failed = appendbufline(13, 0, "# THE START")

mylist->appendbufline(buf, lnum)

:let i = 0
:while i < argc()
:  let f = escape(fnameescape(argv(i)), '.')
:  exe 'amenu Arg.' .. f .. ' :e ' .. f .. '<CR>'
:  let i = i + 1
:endwhile

:echo asin(0.8)

:echo asin(-0.5)

Compute()->asin()

:echo atan(100)

:echo atan(-4.01)

Compute()->atan()

:echo atan2(-1, 1)

:echo atan2(1, -1)

Compute()->atan2(1)

blob2list(0z0102.0304)        returns [1, 2, 3, 4]
blob2list(0z)                returns []

GetBlob()->blob2list()

let bufnr = bufadd('someName')
call bufload(bufnr)
call setbufline(bufnr, 1, ['some', 'text'])

let bufnr = 'somename'->bufadd()

let exists = 'somename'->bufexists()

let listed = 'somename'->buflisted()

eval 'somename'->bufload()

let loaded = 'somename'->bufloaded()

:echo bufname("3" + 0)

echo bufnr->bufname()

bufname("#")                alternate buffer name
bufname(3)                name of buffer 3
bufname("%")                name of current buffer
bufname("file2")        name of buffer where "file2" matches.

:let last_buffer = bufnr("$")

echo bufref->bufnr()

echo "A window containing buffer 1 is " .. (bufwinid(1))

FindBuffer()->bufwinid()

echo "A window containing buffer 1 is " .. (bufwinnr(1))

FindBuffer()->bufwinnr()

GetOffset()->byte2line()

echo matchstr(str, ".", byteidx(str, 3))

let s = strpart(str, byteidx(str, 3))
echo strpart(s, 0, byteidx(s, 1))

echo byteidx('a😊😊', 2)        returns 5
echo byteidx('a😊😊', 2, 1)        returns 1
echo byteidx('a😊😊', 3, 1)        returns 5

GetName()->byteidx(idx)

let s = 'e' .. nr2char(0x301)
echo byteidx(s, 1)
echo byteidxcomp(s, 1)
echo byteidxcomp(s, 2)

GetName()->byteidxcomp(idx)

GetFunc()->call([arg, arg], dict)

echo ceil(1.456)

echo ceil(-5.456)

echo ceil(4.0)

Compute()->ceil()

:call chansend(id, ["abc", "123\n456", ""])

char2nr(" ")                returns 32
char2nr("ABC")                returns 65
char2nr("á")                returns 225
char2nr("á"[0])                returns 195
char2nr("\<M-x>")        returns 128

GetChar()->char2nr()

charcol('.')                returns 3
col('.')                returns 7

GetPos()->col()

echo charidx('áb́ć', 3)                returns 1
echo charidx('áb́ć', 6, 1)        returns 4
echo charidx('áb́ć', 16)                returns -1
echo charidx('a😊😊', 4, 0, 1)        returns 2

GetName()->charidx(idx)

let save_dir = chdir(newdir)
if save_dir != ""
   " ... do some work
   call chdir(save_dir)
endif

GetDir()->chdir()

GetLnum()->cindent()

GetWin()->clearmatches()

col(".")                column of cursor
col("$")                length of cursor line plus one
col("'t")                column of mark t
col("'" .. markname)        column of mark markname

:imap <F2> <Cmd>echo col(".").."\n"<CR>

GetPos()->col()

inoremap <F5> <C-R>=ListMonths()<CR>
func! ListMonths()
  call complete(col('.'), ['January', 'February', 'March',
        \ 'April', 'May', 'June', 'July', 'August', 'September',
        \ 'October', 'November', 'December'])
  return ''
endfunc

GetMatches()->complete(col('.'))

GetMoreMatches()->complete_add()

" 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'])

GetItems()->complete_info()

confirm("Save changes?", "&Yes\n&No\n&Cancel")

confirm("file has been modified", "&Save\nSave &All")

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

BuildMessage()->confirm("&Yes\n&No")

mylist->copy()

:echo cos(100)

:echo cos(-4.01)

Compute()->cos()

:echo cosh(0.5)

:echo cosh(-0.5)

Compute()->cosh()

mylist->count(val)

GetCursorPos()->cursor()

GetPid()->debugbreak()

GetObject()->deepcopy()

GetName()->delete()

GetBuffer()->deletebufline(1)

silent! call dictwatcherdel(g:, '*', 'OnDictChanged')
function! OnDictChanged(d,k,z)
  echomsg string(a:k) string(a:z)
endfunction
call dictwatcheradd(g:, '*', 'OnDictChanged')

GetLnum()->diff_filler()

GetLnum()->diff_hlID(col)

" 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'

GetChars()->digraph_get()

" Get user-defined digraphs
:echo digraph_getlist()
" Get all the digraphs, including default digraphs
:echo digraph_getlist(1)

GetNumber()->digraph_getlist()

call digraph_set('  ', 'あ')

GetString()->digraph_set('あ')

call digraph_setlist([['aa', 'あ'], ['ii', 'い']])

for [chars, digraph] in [['aa', 'あ'], ['ii', 'い']]
      call digraph_set(chars, digraph)
endfor

GetList()->digraph_setlist()

mylist->empty()

:echo has_key(environ(), 'HOME')

:echo index(keys(environ()), 'HOME', 0, 1) != -1

:echo escape('c:\program files\vim', ' \')

c:\\program\ files\\vim

GetText()->escape(' \')

argv->join()->eval()

GetCommand()->executable()

echo execute('echon "foo"')

echo execute(['echon "foo"', 'echon "bar"'])

execute('args')->split("\n")

GetCommand()->execute()

GetCommand()->exepath()

:let l = [1, 2, 3]
:echo exists("l[5]")

:echo exists("l[xx]")

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")

exists(":make")

exists(":make install")

exists(bufcount)

Varname()->exists()

:echo exp(2)

:echo exp(-1)

Compute()->exp()

:let &tags = expand("%:p:h") .. "/tags"

:let doesntwork = expand("%:h.bak")

:let doeswork = expand("%:h") .. ".bak"

:echo expand(expand("<cfile>"))

:echo expand("**/README")

Getpattern()->expand()

:echo expandcmd('make %<.o')
make /path/runtime/doc/builtin.o
:echo expandcmd('make %<.o', {'errmsg': v:true})

GetCommand()->expandcmd()

:echo sort(extend(mylist, [7, 5]))
:call extend(mylist, [2, 3], 1)

:let newlist = [1, 2, 3] + [4, 5]

mylist->extend(otherlist)

GetInput()->feedkeys()

echo filereadable('~/.vimrc')
0
echo filereadable(expand('~/.vimrc'))
1

GetName()->filereadable()

GetName()->filewritable()

call filter(mylist, 'v:val !~ "OLD"')

call filter(mydict, 'v:key >= 8')

call filter(var, 0)

func Odd(idx, val)
  return a:idx % 2 == 1
endfunc
call filter(mylist, function('Odd'))

call filter(myList, {idx, val -> idx * val <= 42})

call filter(myList, {idx -> idx % 2 == 1})

:let l = filter(copy(mylist), 'v:val =~ "KEEP"')

mylist->filter(expr2)

GetName()->finddir()

:echo findfile("tags.vim", ".;")

GetName()->findfile()

:echo flatten([1, [2, [3, 4]], 5])

:echo flatten([1, [2, [3, 4]], 5], 1)

mylist->flatten()

echo float2nr(3.95)

echo float2nr(-23.45)

echo float2nr(1.0e100)

echo float2nr(-1.0e150)

echo float2nr(1.0e-100)

Compute()->float2nr()

echo floor(1.856)

echo floor(-5.456)

echo floor(4.0)

Compute()->floor()

:echo fmod(12.33, 1.22)

:echo fmod(-12.33, 1.22)

Compute()->fmod(1.22)

:let fname = '+some str%nge|name'
:exe "edit " .. fnameescape(fname)

edit \+some\ str\%nge\|name

GetName()->fnameescape()

:echo fnamemodify("main.c", ":p:h")

/home/user/vim/vim/src

GetName()->fnamemodify(':p:h')

GetLnum()->foldclosed()

GetLnum()->foldclosedend()

GetLnum()->foldlevel()

+-- 45 lines: abcdef

GetLnum()->foldtextresult()

GetName()->fullcommand()

GetFuncname()->funcref([arg])

let FuncWithArg = function(dict.Func, [arg])
let Broken = function(dict.Func, [arg], dict)

func Callback(arg1, arg2, name)
"...
let Partial = function('Callback', ['one', 'two'])
"...
call Partial('name')

call Callback('one', 'two', 'name')

func Callback(one, two, three)
"...
let Partial = function('Callback', ['two'])
"...
eval 'one'->Partial('three')

call Callback('one', 'two', 'three')

func Callback(arg1, arg2, name)
"...
let Func = function('Callback', ['one'])
let Func2 = function(Func, ['two'])
"...
call Func2('name')

call Callback('one', 'two', 'name')

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

let Func = function('Callback', context)
let Func = context.Callback

function Callback(arg1, count) dict
"...
let context = {"name": "example"}
let Func = function('Callback', ['one'], context)
"...
call Func(500)

call context.Callback('one', 500)

GetFuncname()->function([arg])

mylist->get(idx)

let val = get(g:, 'var_name', 'default')

:echo line('.', {winid})

for buf in getbufinfo()
    echo buf.name
endfor
for buf in getbufinfo({'buflisted':1})
    if buf.changed
        ....
    endif
endfor

getbufvar({bufnr}, '&option_name')

GetBufnr()->getbufinfo()

:let lines = getbufline(bufnr("myfile"), 1, "$")

GetBufnr()->getbufline(lnum)

:let bufmodified = getbufvar(1, "&mod")
:echo "todo myvar = " .. getbufvar("todo", "myvar")

GetBufnr()->getbufvar(varname)

GetBufnr()->getchangelist()

let c = getchar()
if c == "\<LeftMouse>" && v:mouse_win > 0
  exe v:mouse_win .. "wincmd w"
  exe v:mouse_lnum
  exe "normal " .. v:mouse_col .. "|"
endif

getchar() == "\<Del>"
getchar() == "\<S-Left>"

:nmap f :call FindChar()<CR>
:function FindChar()
:  let c = nr2char(getchar())
:  while col('.') < col('$') - 1
:    normal l
:    if getline('.')[col('.') - 1] ==? c
:      break
:    endif
:  endwhile
:endfunction

getcharpos('.')                returns [0, 5, 3, 0]
getpos('.')                returns [0, 5, 7, 0]

GetMark()->getcharpos()

:nnoremap <expr> ; getcharsearch().forward ? ';' : ','
:nnoremap <expr> , getcharsearch().forward ? ',' : ';'

:cmap <F7> <C-\>eescape(getcmdline(), ' \')<CR>

echo getcompletion('call ', 'cmdline')

GetPattern()->getcompletion('color')

let save_cursor = getcurpos()
MoveTheCursorAround
call setpos('.', save_cursor)

GetWinid()->getcurpos()

getcursorcharpos()        returns [0, 3, 2, 0, 3]
getcurpos()                returns [0, 3, 4, 0, 3]

GetWinid()->getcursorcharpos()

getcwd(0)
getcwd(0, 0)

GetWinnr()->getcwd()

myHome = getenv('HOME')

GetVarname()->getenv()

:echo getfperm("/etc/passwd")
:echo getfperm(expand("~/.config/nvim/init.vim"))

GetFilename()->getfperm()

GetFilename()->getfsize()

GetFilename()->getftime()

getftype("/home")

GetFilename()->getftype()

GetWinnr()->getjumplist()

getline(1)

getline(".")

:let start = line('.')
:let end = search("^$") - 1
:let lines = getline(start, end)

ComputeLnum()->getline()

:echo getloclist(3, {'all': 0})
:echo getloclist(5, {'filewinid': 0})

GetBufnr()->getmarklist()

:echo getmatches()

:let m = getmatches()
:call clearmatches()
:echo getmatches()

:call setmatches(m)
:echo getmatches()

:unlet m

let save_a_mark = getpos("'a")
...
call setpos("'a", save_a_mark)

GetMark()->getpos()

:vimgrep /theword/jg *.c
:for d in getqflist()
:   echo bufname(d.bufnr) ':' d.lnum '=' d.text
:endfor

:echo getqflist({'all': 1})
:echo getqflist({'nr': 2, 'title': 1})
:echo getqflist({'lines' : ["F1:10:L10"]})

:let cliptext = getreg('*')

GetRegname()->getreg()

GetRegname()->getreginfo()

GetRegname()->getregtype()

:echo getscriptinfo({'name': 'myscript'})
:echo getscriptinfo({'sid': 15}).variables

GetTabnr()->gettabinfo()

GetTabnr()->gettabvar(varname)

:let list_is_on = gettabwinvar(1, 2, '&list')
:echo "myvar = " .. gettabwinvar(3, 1, 'myvar')

gettabwinvar({tabnr}, {winnr}, '&')

GetTabnr()->gettabwinvar(winnr, varname)

GetWinnr()->gettagstack()

GetWinnr()->getwininfo()

while 1
  let res = getwinpos(1)
  if res[0] >= 0
    break
  endif
  " Do some work here
endwhile

GetTimeout()->getwinpos()

:let list_is_on = getwinvar(2, '&list')
:echo "myvar = " .. getwinvar(1, 'myvar')

GetWinnr()->getwinvar(varname)

:let tagfiles = glob("`find . -name tags -print`")
:let &tags = substitute(tagfiles, "\n", ",", "g")

GetExpr()->glob()

if filename =~ glob2regpat('Make*.mak')

if filename =~ '^Make.*\.mak$'

GetExpr()->glob2regpat()

:echo globpath(&rtp, "syntax/c.vim")

:echo globpath(&rtp, "syntax/c.vim", 0, 1)

:echo globpath(&rtp, "**/README.txt")

GetExpr()->globpath(&rtp)

:lua print(vim.loop.os_uname().sysname)

if has('feature')
  let x = this->breaks->without->the->feature
endif

:if has("nvim-0.2.1")

:if has("win32")

:if v:version > 602 || v:version == 602 && has("patch148")

:if has("patch-7.4.237")

mydict->has_key(key)

haslocaldir()
haslocaldir(0)
haslocaldir(0, 0)

GetWinnr()->haslocaldir()

:if !hasmapto('\ABCdoit')
:   map <Leader>d \ABCdoit
:endif

GetRHS()->hasmapto()

:call histadd("input", strftime("%Y %b %d"))
:let date=input("Enter date: ")

GetHistory()->histadd('search')

:call histdel("expr")

:call histdel("/", '^\*')

:call histdel("search", histnr("search"))
:call histdel("search", -1)
:call histdel("search", '^' .. histget("search", -1) .. '$')

:call histdel("search", -1)
:let @/ = histget("search", -1)

GetHistory()->histdel()

:execute '/' .. histget("search", -2)

:command -nargs=1 H execute histget("cmd", 0+<args>)

GetHistory()->histget()

:let inp_index = histnr("expr")

GetHistory()->histnr()

GetName()->hlexists()

:echo synIDattr(synIDtrans(hlID("Comment")), "bg")

GetName()->hlID()

GetText()->iconv('latin1', 'utf-8')

GetLnum()->indent()

:let idx = index(words, "the")
:if index(numbers, 123) >= 0

GetObject()->index(what)

:let l = [#{n: 10}, #{n: 20}, #{n: 30}]
:echo indexof(l, "v:val.n == 20")
:echo indexof(l, {i, v -> v.n == 30})
:echo indexof(l, "v:val.n == 20", #{startidx: 1})

mylist->indexof(expr)

:if input("Coffee or beer? ") == "beer"
:  echo "Cheers!"
:endif

:let color = input("Color? ", "white")

let fname = input("File: ", "", "file")

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'})

:nmap \x :call GetFoo()<CR>:exe "/" .. Foo<CR>
:function GetFoo()
:  call inputsave()
:  let g:Foo = input("enter search pattern: ")
:  call inputrestore()
:endfunction

GetPrompt()->input()

let color = inputlist(['Select color:', '1. red',
        \ '2. green', '3. blue'])

GetChoices()->inputlist()

GetPrompt()->inputsecret()

:let mylist = insert([2, 3, 5], 1)
:call insert(mylist, 4, -1)
:call insert(mylist, 6, len(mylist))

mylist->insert(item)

:function s:check_typoname(file)
:   if fnamemodify(a:file, ':t') == '['
:       echomsg 'Maybe typo'
:       call interrupt()
:   endif
:endfunction
:au BufWritePre * call s:check_typoname(expand('<amatch>'))

:let bits = invert(bits)

:let bits = bits->invert()

GetName()->isdirectory()

:echo isinf(1.0 / 0.0)

:echo isinf(-1.0 / 0.0)

Compute()->isinf()

:let alist = [0, ['a', 'b'], 2, 3]
:lockvar 1 alist
:echo islocked('alist')                " 1
:echo islocked('alist[1]')        " 0

GetName()->islocked()

for [key, value] in items(mydict)
   echo key .. ': ' .. value
endfor

mydict->items()

echo isnan(0.0 / 0.0)

Compute()->isnan()

:call jobstart(split(&shell) + split(&shellcmdflag) + ['{cmd}'])

:call jobstart('nvim -h', {'on_stdout':{j,d,e->append(line('.'),d)}})

:call jobstart(['System32\ping.exe', 'neovim.io'])

let running = jobwait([{job-id}], 0)[0] == -1

let lines = join(mylist, "\n") .. "\n"

mylist->join()

ReadObject()->json_decode()

GetObject()->json_encode()

mydict->keys()

:let xx = "\<C-Home>"
:echo keytrans(xx)

"\<C-Home>"->keytrans()

mylist->len()

:echo libcall("libc.so", "getenv", "HOME")

GetValue()->libcall("libc.so", "getenv")

:echo libcallnr("/usr/lib/libc.so", "getpid", "")
:call libcallnr("libc.so", "printf", "Hello World!\n")
:call libcallnr("libc.so", "sleep", 10)

GetValue()->libcallnr("libc.so", "printf")

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

GetValue()->line()

line2byte(line("$") + 1)

GetLnum()->line2byte()

GetLnum()->lispindent()

list2blob([1, 2, 3, 4])        returns 0z01020304
list2blob([])                returns 0z

GetList()->list2blob()

list2str([32])                returns " "
list2str([65, 66, 67])        returns "ABC"

join(map(list, {nr, val -> nr2char(val)}), '')

list2str([97, 769])        returns "á"

GetList()->list2str()

:echo log(10)

:echo log(exp(5))

Compute()->log()

:echo log10(1000)

:echo log10(0.01)

Compute()->log10()

GetExpr()->luaeval()

:call map(mylist, '"> " .. v:val .. " <"')

func KeyValue(key, val)
  return a:key .. '-' .. a:val
endfunc
call map(myDict, function('KeyValue'))

call map(myDict, {key, val -> key .. '-' .. val})

call map(myDict, {key -> 'item: ' .. key})

call map(myDict, {_, val -> 'item: ' .. val})

:let tlist = map(copy(mylist), ' v:val .. "\t"')

mylist->map(expr2)

exe 'nnoremap <Tab> ==' .. maparg('<Tab>', 'n')

GetKey()->maparg('n')

:if mapcheck("_vv") == ""
:   map _vv :set guifont=7x13<CR>
:endif

GetKey()->mapcheck('n')

let save_map = maparg('K', 'n', 0, 1)
nnoremap K somethingelse
...
call mapset('n', 0, save_map)

:echo match("testing", "ing")        " results in 4
:echo match([1, 'x'], '\a')        " results in 1

:let sepidx = match(line, '[.,;: \t]')

:let idx = match(haystack, '\cneedle')

:echo match("testing", "ing", 2)

:echo match("testing", "ing", 4)

:echo match("testing", "t", 2)

echo match("testing", "..", 0, 2)

GetText()->match('word')
GetList()->match('word')

:highlight MyGroup ctermbg=green guibg=green
:let m = matchadd("MyGroup", "TODO")

:call matchdelete(m)

GetGroup()->matchadd('TODO')

:highlight MyGroup ctermbg=green guibg=green
:let m = matchaddpos("MyGroup", [[23, 24], 34])

:call matchdelete(m)

GetGroup()->matchaddpos([23, 11])

GetMatch()->matcharg()

GetMatch()->matchdelete()

:echo matchend("testing", "ing")

:let span = matchend(line, '[a-zA-Z]')
:let span = matchend(line, '[^a-zA-Z]')

:echo matchend("testing", "ing", 2)

:echo matchend("testing", "ing", 5)

GetText()->matchend('word')

:echo matchfuzzy(["clay", "crow"], "cay")

:echo getbufinfo()->map({_, v -> v.name})->matchfuzzy("ndl")

:echo getbufinfo()->matchfuzzy("ndl", {'key' : 'name'})

:echo getbufinfo()->matchfuzzy("spl",
                             \ {'text_cb' : {v -> v.name}})

:echo v:oldfiles->matchfuzzy("test")

:let l = readfile("buffer.c")->matchfuzzy("str")

:echo ['one two', 'two one']->matchfuzzy('two one')

:echo ['one two', 'two one']->matchfuzzy('two one',
                             \ {'matchseq': 1})

:echo matchfuzzypos(['testing'], 'tsg')

:echo matchfuzzypos(['clay', 'lacy'], 'la')

:echo [{'text': 'hello', 'id' : 10}]
        \ ->matchfuzzypos('ll', {'key' : 'text'})

echo matchlist('acd', '\(a\)\?\(b\)\?\(c\)\?\(.*\)')

GetText()->matchlist('word')

:echo matchstr("testing", "ing")

:echo matchstr("testing", "ing", 2)

:echo matchstr("testing", "ing", 5)

GetText()->matchstr('word')

:echo matchstrpos("testing", "ing")

:echo matchstrpos("testing", "ing", 2)

:echo matchstrpos("testing", "ing", 5)

:echo matchstrpos([1, '__x'], '\a')

GetText()->matchstrpos('word')

echo max([apples, pears, oranges])

mylist->max()

:echo menu_get('File','')
:echo menu_get('')

nnoremenu &Test.Test inormal
inoremenu Test.Test insert
vnoremenu Test.Test x
echo menu_get("")

[ {
  "hidden": 0,
  "name": "Test",
  "priority": 500,
  "shortcut": 84,
  "submenus": [ {
    "hidden": 0,
    "mappings": {
      i": {
        "enabled": 1,
        "noremap": 1,
        "rhs": "insert",
        "sid": 1,
        "silent": 0
      },
      n": { ... },
      s": { ... },
      v": { ... }
    },
    "name": "Test",
    "priority": 500,
    "shortcut": 0
  } ]
} ]

:echo menu_info('Edit.Cut')
:echo menu_info('File.Save', 'n')
" Display the entire menu hierarchy in a buffer
func ShowMenu(name, pfx)
  let m = menu_info(a:name)
  call append(line('$'), a:pfx .. m.display)
  for child in m->get('submenus', [])
    call ShowMenu(a:name .. '.' .. escape(child, '.'),
                                \ a:pfx .. '    ')
  endfor
endfunc
new
for topmenu in menu_info('').submenus
  call ShowMenu(topmenu, '')
endfor

GetMenuName()->menu_info('v')

echo min([apples, pears, oranges])

mylist->min()

defer delete({name}, 'd')

defer delete({name}, 'rf')

call mkdir('subdir/tmp/autoload', 'pR')

        defer delete('subdir/tmp', 'rf')
If {prot} is given it is used to set the protection bits of
the new directory.  The default is 0o755 (rwxr-xr-x: r/w for
the user, readable for others).  Use 0o700 to make it
unreadable for others.
{prot} is applied for all parts of {name}.  Thus if you create
/tmp/foo/bar then /tmp/foo will be created with 0o700. Example: >
        :call mkdir($HOME .. "/tmp/foo/bar", "p", 0o700)

GetName()->mkdir()

DoFull()->mode()

call writefile(msgpackdump([{}]), 'fname.mpack', 'b')

call writefile(msgpackdump([{}], 'B'), 'fname.mpack')

let fname = expand('~/.config/nvim/shada/main.shada')
let mpack = readfile(fname, 'b')
let shada_objects = msgpackparse(mpack)

_VAL[0] * ((_VAL[1] << 62)
           & (_VAL[2] << 31)
           & _VAL[3])

if getline(nextnonblank(1)) =~ "Java"

GetLnum()->nextnonblank()

nr2char(64)                returns "@"
nr2char(32)                returns " "

nr2char(300)                returns I with bow character

GetNumber()->nr2char()

:let bits = or(bits, 0x80)

:let bits = bits->or(0x80)

:echo pathshorten('~/.config/nvim/autoload/file1.vim')

:echo pathshorten('~/.config/nvim/autoload/file2.vim', 2)

GetDirectories()->pathshorten()

:echo perleval('[1 .. 4]')

GetExpr()->perleval()

:echo pow(3, 3)

:echo pow(2, 16)

:echo pow(32, 0.20)

Compute()->pow(3)

let ind = indent(prevnonblank(v:lnum - 1))

GetLnum()->prevnonblank()

printf("%4d: E%d %.30s", lnum, errno, msg)

Compute()->printf("result: %d")

:echo printf("%d: %.*s", nr, width, line)

echo printf("%.2f", 12.115)

GetBuffer()->prompt_getprompt()

func s:TextEntered(text)
  if a:text == 'exit' || a:text == 'quit'
    stopinsert
    " Reset 'modified' to allow the buffer to be closed.
    " We assume there is nothing useful to be saved.
    set nomodified
    close
  else
    " Do something useful with "a:text".  In this example
    " we just repeat it.
    call append(line('$') - 1, 'Entered: "' .. a:text .. '"')
  endif
endfunc
call prompt_setcallback(bufnr(), function('s:TextEntered'))

GetBuffer()->prompt_setcallback(callback)

GetBuffer()->prompt_setinterrupt(callback)

call prompt_setprompt(bufnr(''), 'command: ')

GetBuffer()->prompt_setprompt('command: ')

GetExpr()->py3eval()

GetExpr()->pyeval()

GetExpr()->pyxeval()

:echo rand()
:let seed = srand()
:echo rand(seed)
:echo rand(seed) % 16  " random number 0 - 15

seed->rand()

GetExpr()->range()

readblob('file.bin', -12)

readblob('file.bin', 0, 100)

readblob('/dev/ttyS0', 0, 10)

readdir(dirname, {n -> n =~ '.txt$'})

readdir(dirname, {n -> n !~ '^\.\|\~$'})

function! s:tree(dir)
    return {a:dir : map(readdir(a:dir),
    \ {_, x -> isdirectory(x) ?
    \          {x : s:tree(a:dir .. '/' .. x)} : x})}
endfunction
echo s:tree(".")

GetDirName()->readdir()

GetFileName()->readfile()

echo reduce([1, 3, 5], { acc, val -> acc + val })
echo reduce(['x', 'y'], { acc, val -> acc .. val }, 'a')
echo reduce(0z1122, { acc, val -> 2 * acc + val })

echo mylist->reduce({ acc, val -> acc + val }, 0)

GetStart()->reltime()

reltime(start)->reltimefloat()

let start = reltime()
call MyFunction()
echo reltimestr(reltime(start))

echo split(reltimestr(reltime(start)))[0]

reltime(start)->reltimestr()

:echo "last item: " .. remove(mylist, -1)
:call remove(mylist, 0, 9)

mylist->remove(idx)

:echo "last byte: " .. remove(myblob, -1)
:call remove(mylist, 0, 9)

:echo "removed " .. remove(dict, "one")

GetOldName()->rename(newname)

:let separator = repeat('-', 80)

:let longlist = repeat(['a', 'b'], 3)

mylist->repeat(count)

GetName()->resolve()

:let revlist = reverse(copy(mylist))

mylist->reverse()

echo round(0.456)

echo round(4.5)

echo round(-4.5)

Compute()->round()

:au VimLeave call rpcnotify(0, "leaving")

:let result = rpcrequest(rpc_chan, "func", 1, 2, 3)

:let id = rpcstart('prog', ['arg1', 'arg2'])

:let id = jobstart(['prog', 'arg1', 'arg2'], {'rpc': v:true})

GetRubyExpr()->rubyeval()

GetRow()->screenattr(col)

GetRow()->screenchar(col)

GetRow()->screenchars(col)

nnoremap <expr> GG ":echom " .. screencol() .. "\n"
nnoremap <silent> GG :echom screencol()<CR>
noremap GG <Cmd>echom screencol()<Cr>

GetWinid()->screenpos(lnum, col)

GetRow()->screenstring(col)

let match = search('(', 'b', line("w0"))
let end = search('END', '', line("w$"))

:let n = 1
:while n <= argc()            " loop over all files in arglist
:  exe "argument " .. n
:  " start at the last char in the file and wrap for the
:  " first search to find match at start of file
:  normal G$
:  let flags = "w"
:  while search("foo", flags) > 0
:         s/foo/bar/g
:         let flags = "W"
:  endwhile
:  update                    " write the file if modified
:  let n = n + 1
:endwhile

:echo search('\<if\|\(else\)\|\(endif\)', 'ncpe')

GetPattern()->search()

" result == maxcount + 1 (100) when many matches
let result = searchcount(#{recompute: 0})
" Below returns correct result (recompute defaults
" to 1)
let result = searchcount()

function! LastSearchCount() abort
  let result = searchcount(#{recompute: 0})
  if empty(result)
    return ''
  endif
  if result.incomplete ==# 1     " timed out
    return printf(' /%s [?/??]', @/)
  elseif result.incomplete ==# 2 " max count exceeded
    if result.total > result.maxcount &&
    \  result.current > result.maxcount
      return printf(' /%s [>%d/>%d]', @/,
      \             result.current, result.total)
    elseif result.total > result.maxcount
      return printf(' /%s [%d/>%d]', @/,
      \             result.current, result.total)
    endif
  endif
  return printf(' /%s [%d/%d]', @/,
  \             result.current, result.total)
endfunction
let &statusline ..= '%{LastSearchCount()}'
" Or if you want to show the count only when
" 'hlsearch' was on
" let &statusline ..=
" \   '%{v:hlsearch ? LastSearchCount() : ""}'

autocmd CursorMoved,CursorMovedI *
  \ let s:searchcount_timer = timer_start(
  \   200, function('s:update_searchcount'))
function! s:update_searchcount(timer) abort
  if a:timer ==# s:searchcount_timer
    call searchcount(#{
    \ recompute: 1, maxcount: 0, timeout: 100})
    redrawstatus
  endif
endfunction

" Count '\<foo\>' in this buffer
" (Note that it also updates search count)
let result = searchcount(#{pattern: '\<foo\>'})
" To restore old search count by old pattern,
" search again
call searchcount()

let @/ = pattern

GetSearchOpts()->searchcount()

if searchdecl('myvar') == 0
   echo getline('.')
endif

GetName()->searchdecl()

searchpair('\<if\>', '\<else\>', '\<endif\>')

if 1
  if 2
  endif 2
endif 1

:echo searchpair('\<if\>', '\<el\%[seif]\>', '\<en\%[dif]\>', 'W',
                \ 'getline(".") =~ "^\\s*\""')

:echo searchpair('{', '', '}', 'bW')

:echo searchpair('{', '', '}', 'bW',
     \ 'synIDattr(synID(line("."), col("."), 0), "name") =~? "string"')

:let [lnum,col] = searchpairpos('{', '', '}', 'n')

:let [lnum, col] = searchpos('mypattern', 'n')

:let [lnum, col, submatch] = searchpos('\(\l\)\|\(\u\)', 'np')

GetPattern()->searchpos()

:echo serverlist()

ls ${XDG_RUNTIME_DIR:-${TMPDIR}nvim.${USER}}/*/nvim.*.0

if has('win32')
  echo serverstart('\\.\pipe\nvim-pipe-1234')
else
  echo serverstart('nvim.sock')
endif

echo serverstart('::1:12345')

GetText()->setbufline(buf, lnum)

:call setbufvar(1, "&mod", 1)
:call setbufvar("todo", "myvar", "foobar")

GetValue()->setbufvar(buf, varname)

call setcellwidths([
             \ [0x111, 0x111, 1],
             \ [0x2194, 0x2199, 2],
             \ ])

call setcellwidths([])

call setcharpos('.', [0, 8, 4, 0])

call setpos('.', [0, 8, 4, 0])

GetPosition()->setcharpos('.')

:let prevsearch = getcharsearch()
:" Perform a command which clobbers user's search
:call setcharsearch(prevsearch)

SavedSearch()->setcharsearch()

GetText()->setcmdline()

GetPos()->setcmdpos()

call setcursorcharpos(4, 3)

call cursor(4, 3)

GetCursorPos()->setcursorcharpos()

call setenv('HOME', '/home/myhome')

GetPath()->setenv('PATH')

GetFilename()->setfperm(mode)

:call setline(5, strftime("%c"))

:call setline(5, ['aaa', 'bbb', 'ccc'])

:for [n, l] in [[5, 'aaa'], [6, 'bbb'], [7, 'ccc']]
:  call setline(n, l)
:endfor

GetText()->setline(lnum)

GetLoclist()->setloclist(winnr)

GetMatches()->setmatches()

GetPosition()->setpos('.')

:call setqflist([], 'r')

:call setqflist([], 'r', {'title': 'My search'})
:call setqflist([], 'r', {'nr': 2, 'title': 'Errors'})
:call setqflist([], 'a', {'id':qfid, 'lines':["F1:10:L10"]})

GetErrorlist()->setqflist()

:call setreg(v:register, @*)
:call setreg('*', @%, 'ac')
:call setreg('a', "1\n2\n3", 'b5')
:call setreg('"', { 'points_to': 'a'})

:let var_a = getreginfo()
:call setreg('a', var_a)

:let var_a = getreg('a', 1, 1)
:let var_amode = getregtype('a')
    ....
:call setreg('a', var_a, var_amode)

:call setreg('a', '', 'al')

GetText()->setreg('a')

GetValue()->settabvar(tab, name)

:call settabwinvar(1, 1, "&list", 0)
:call settabwinvar(3, 2, "myvar", "foobar")

GetValue()->settabwinvar(tab, winnr, name)

call settagstack(3, {'items' : []})

let stack = gettagstack(1003)
" do something else
call settagstack(1003, stack)
unlet stack

GetStack()->settagstack(winnr)

:call setwinvar(1, "&list", 0)
:call setwinvar(2, "myvar", "foobar")

GetValue()->setwinvar(winnr, name)

GetText()->sha256()

:exe '!dir ' .. shellescape(expand('<cfile>'), 1)

:call system("chmod +w -- " .. shellescape(expand("%")))

GetCommand()->shellescape()

if exists('*shiftwidth')
  func s:sw()
    return shiftwidth()
  endfunc
else
  func s:sw()
    return &sw
  endfunc
endif

GetColumn()->shiftwidth()

simplify("./dir/.././/file/") == "./file/"

GetName()->simplify()

:echo sin(100)

:echo sin(-4.01)

Compute()->sin()

:echo sinh(0.5)

:echo sinh(-0.9)

Compute()->sinh()

GetList()->slice(offset)

:let sortedlist = sort(copy(mylist))

" ö is sorted similarly to o with English locale.
:language collate en_US.UTF8
:echo sort(['n', 'o', 'O', 'ö', 'p', 'z'], 'l')

" ö is sorted after z with Swedish locale.
:language collate sv_SE.UTF8
:echo sort(['n', 'o', 'O', 'ö', 'p', 'z'], 'l')

mylist->sort()

func MyCompare(i1, i2)
   return a:i1 == a:i2 ? 0 : a:i1 > a:i2 ? 1 : -1
endfunc
eval mylist->sort("MyCompare")

func MyCompare(i1, i2)
   return a:i1 - a:i2
endfunc

eval mylist->sort({i1, i2 -> i1 - i2})

GetWord()->soundfold()

GetText()->spellbadword()

GetWord()->spellsuggest()

:let words = split(getline('.'), '\W\+')

:for c in split(mystring, '\zs')

:echo split('abc:def:ghi', ':\zs')

:let items = split(line, ':', 1)

GetString()->split()

:echo sqrt(100)

:echo sqrt(-4.01)

Compute()->sqrt()

:let seed = srand()
:let seed = srand(userinput)
:echo rand(seed)

userinput->srand()

:echo stdpath("config")

let f = str2float(substitute(text, ',', '', 'g'))

let f = text->substitute(',', '', 'g')->str2float()

str2list(" ")                returns [32]
str2list("ABC")                returns [65, 66, 67]

str2list("á")                returns [97, 769]

GetString()->str2list()

let nr = str2nr('0123')

GetText()->str2nr()

GetText()->strcharlen()

strcharpart('abc', -1, 2)

GetText()->strcharpart(5)

if has("patch-7.4.755")
  function s:strchars(str, skipcc)
    return strchars(a:str, a:skipcc)
  endfunction
else
  function s:strchars(str, skipcc)
    if a:skipcc
      return strlen(substitute(a:str, ".", "x", "g"))
    else
      return strchars(a:str)
    endif
  endfunction
endif

GetText()->strchars()

GetText()->strdisplaywidth()

:echo strftime("%c")                   Sun Apr 27 11:49:23 1997
:echo strftime("%Y %b %d %X")           1997 Apr 27 11:53:25
:echo strftime("%y%m%d %T")           970427 11:53:55
:echo strftime("%H:%M")           11:55
:echo strftime("%c", getftime("file.c"))
                                 Show mod time of file.c.

GetFormat()->strftime()

GetText()->strgetchar(5)

:let colon1 = stridx(line, ":")
:let colon2 = stridx(line, ":", colon1 + 1)

:echo stridx("An Example", "Example")             3
:echo stridx("Starting point", "Start")    0
:echo stridx("Starting point", "start")   -1

GetHaystack()->stridx(needle)

mylist->string()

GetString()->strlen()

strpart("abcdefg", 3, 2)    == "de"
strpart("abcdefg", -2, 4)   == "ab"
strpart("abcdefg", 5, 4)    == "fg"
strpart("abcdefg", 3)            == "defg"

strpart(getline("."), col(".") - 1, 1, v:true)

GetText()->strpart(5)

:echo strptime("%Y %b %d %X", "1997 Apr 27 11:49:23")

:echo strftime("%c", strptime("%y%m%d %T", "970427 11:53:55"))

:echo strftime("%c", strptime("%Y%m%d%H%M%S", "19970427115355") + 3600)

GetFormat()->strptime(timestring)

:let lastcomma = strridx(line, ",")
:let comma2 = strridx(line, ",", lastcomma - 1)

:echo strridx("an angry armadillo", "an")             3

GetHaystack()->strridx(needle)

echo strtrans(@a)

GetString()->strtrans()

    echo strutf16len('a')                returns 1
    echo strutf16len('©')                returns 1
    echo strutf16len('😊')                returns 2
    echo strutf16len('ą́')                returns 1
    echo strutf16len('ą́', v:true)        returns 3
Can also be used as a |method|: >
        GetText()->strutf16len()

GetString()->strwidth()

:s/\d\+/\=submatch(0) + 1/
:echo substitute(text, '\d\+', '\=submatch(0) + 1', '')

GetNr()->submatch()

:let &path = substitute(&path, ",\\=[^,]*$", "", "")

:echo substitute("testing", ".*", "\\U\\0", "")

:echo substitute(s, '%\(\x\x\)',
   \ '\=nr2char("0x" .. submatch(1))', 'g')

:echo substitute(s, '%\(\x\x\)', SubNr, 'g')

:echo substitute(s, '%\(\x\x\)', {m -> '0x' .. m[1]}, 'g')

GetString()->substitute(pat, sub, flags)

let save_dir = &directory
let &directory = '.'
let swapfiles = swapfilelist()
let &directory = save_dir

GetFilename()->swapinfo()

GetBufname()->swapname()

:echo synIDattr(synID(line("."), col("."), 1), "name")

:echo synIDattr(synIDtrans(synID(line("."), col("."), 1)), "fg")

:echo synID(line("."), col("."), 1)->synIDtrans()->synIDattr("fg")

:echo synID(line("."), col("."), 1)->synIDtrans()->synIDattr("fg")

for id in synstack(line("."), col("."))
   echo synIDattr(id, "name")
endfor

:call jobstart(split(&shell) + split(&shellcmdflag) + ['{cmd}'])

:echo system(['ls', expand('%:h')])

:echo system("cat - &", "foo")

$ echo foo | bash -c 'cat - &'

:echo system('ls '..shellescape(expand('%:h')))
:echo system('ls '..expand('%:h:S'))

:echo GetCmd()->system()

echo split(system('echo hello'), '\n', 1)

:echo GetCmd()->systemlist()

let buflist = []
for i in range(tabpagenr('$'))
   call extend(buflist, tabpagebuflist(i + 1))
endfor

GetTabpage()->tabpagebuflist()

GetTabpage()->tabpagewinnr()

GetTagpattern()->taglist()

:let tmpfile = tempname()
:exe "redir > " .. tmpfile

:echo tan(10)

:echo tan(-4.01)

Compute()->tan()

:echo tanh(0.5)

:echo tanh(-1)

Compute()->tanh()

GetTimer()->timer_info()

GetTimer()->timer_pause(1)

func MyHandler(timer)
  echo 'Handler called'
endfunc
let timer = timer_start(500, 'MyHandler',
        \ {'repeat': 3})

GetMsec()->timer_start(callback)

GetTimer()->timer_stop()

GetText()->tolower()

GetText()->toupper()

echo tr("hello there", "ht", "HT")

echo tr("<blob>", "<>", "{}")

GetText()->tr(from, to)