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if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'javascript') == -1
" Vim indent file
" Language: Javascript
" Maintainer: vim-javascript community
" URL: https://github.com/pangloss/vim-javascript
" Acknowledgement: Based off of vim-ruby maintained by Nikolai Weibull http://vim-ruby.rubyforge.org
" Only load this indent file when no other was loaded.
if exists("b:did_indent")
finish
endif
let b:did_indent = 1
" Now, set up our indentation expression and keys that trigger it.
setlocal indentexpr=GetJavascriptIndent()
setlocal nolisp
setlocal indentkeys=0{,0},0),0],:,!^F,o,O,e
setlocal cinoptions+=j1,J1
let b:undo_indent = 'setlocal indentexpr< indentkeys< cinoptions<'
" Only define the function once.
if exists("*GetJavascriptIndent")
finish
endif
let s:cpo_save = &cpo
set cpo&vim
" Get shiftwidth value
if exists('*shiftwidth')
func s:sw()
return shiftwidth()
endfunc
else
func s:sw()
return &sw
endfunc
endif
let s:line_pre = '^\s*\%(\/\*.*\*\/\s*\)*'
let s:expr_case = s:line_pre . '\%(\%(case\>.*\)\|default\)\s*:\C'
" Regex of syntax group names that are or delimit string or are comments.
let s:syng_strcom = '\%(string\|regex\|special\|doc\|comment\|template\)\c'
" Regex of syntax group names that are strings or documentation.
let s:syng_comment = '\%(comment\|doc\)\c'
" Expression used to check whether we should skip a match with searchpair().
let s:skip_expr = "line('.') < (prevnonblank(v:lnum) - 2000) ? dummy : s:IsSyn(line('.'),col('.'),'')"
func s:lookForParens(start,end,flags,time)
try
return searchpair(a:start,'',a:end,a:flags,s:skip_expr,0,a:time)
catch /E118/
return searchpair(a:start,'',a:end,a:flags,0,0)
endtry
endfunc
let s:line_term = '\s*\%(\%(:\@<!\/\/.*\)\=\|\%(\/\*.*\*\/\s*\)*\)$'
" configurable regexes that define continuation lines, not including (, {, or [.
if !exists('g:javascript_opfirst')
let g:javascript_opfirst = '\%([,:?^%]\|\([-/.+]\)\%(\1\|\*\|\/\)\@!\|\*\/\@!\|=>\@!\||\|&\|in\%(stanceof\)\=\>\)\C'
endif
let g:javascript_opfirst = s:line_pre . g:javascript_opfirst
if !exists('g:javascript_continuation')
let g:javascript_continuation = '\%([*,.?:^%]\|+\@<!+\|-\@<!-\|\*\@<!\/\|=\||\|&\|\<in\%(stanceof\)\=\)\C'
endif
let g:javascript_continuation .= s:line_term
function s:Onescope(lnum,text,add)
return a:text =~ '\%(\<else\|\<do\|=>' . (a:add ? '\|\<try\|\<finally' : '' ) . '\)\C' . s:line_term ||
\ (a:add && a:text =~ s:line_pre . s:line_term && getline(s:PrevCodeLine(a:lnum - 1)) =~ ')' . s:line_term) ||
\ (cursor(a:lnum, match(a:text, ')' . s:line_term)) > -1 &&
\ s:lookForParens('(', ')', 'cbW', 100) > 0 &&
\ search((a:add ? '\%(function\*\|[A-Za-z_$][0-9A-Za-z_$]*\)\C' :
\ '\<\%(for\%(\s+each\)\=\|if\|let\|switch\|while\|with\)\C') . '\_s*\%#','bW')) &&
\ (a:add || (expand("<cword>") == 'while' ? !s:lookForParens('\<do\>\C', '\<while\>\C','bW',100) : 1))
endfunction
" Auxiliary Functions {{{2
" Check if the character at lnum:col is inside a string, comment, or is ascii.
function s:IsSyn(lnum, col, reg)
return synIDattr(synID(a:lnum, a:col, 1), 'name') =~? (a:reg != '' ? a:reg : s:syng_strcom)
endfunction
" Find line above 'lnum' that isn't empty, in a comment, or in a string.
function s:PrevCodeLine(lnum)
let lnum = prevnonblank(a:lnum)
while lnum > 0
if !s:IsSyn(lnum, matchend(getline(lnum), '^\s*[^''"]'),'')
break
endif
let lnum = prevnonblank(lnum - 1)
endwhile
return lnum
endfunction
" Check if line 'lnum' has more opening brackets than closing ones.
function s:LineHasOpeningBrackets(lnum)
let open_0 = 0
let open_2 = 0
let open_4 = 0
let line = getline(a:lnum)
let pos = match(line, '[][(){}]', 0)
let last = 0
while pos != -1
if !s:IsSyn(a:lnum, pos + 1, '')
let idx = stridx('(){}[]', line[pos])
if idx % 2 == 0
let open_{idx} = open_{idx} + 1
let last = pos
else
let open_{idx - 1} = open_{idx - 1} - 1
endif
endif
let pos = match(line, '[][(){}]', pos + 1)
endwhile
return [(open_0 > 0 ? 1 : (open_0 == 0 ? 0 : 2)) . (open_2 > 0 ? 1 : (open_2 == 0 ? 0 : 2)) .
\ (open_4 > 0 ? 1 : (open_4 == 0 ? 0 : 2)), last]
endfunction
" }}}
function GetJavascriptIndent()
if !exists('b:js_cache')
let b:js_cache = [0,0,0]
end
" Get the current line.
let line = getline(v:lnum)
" previous nonblank line number
let prevline = prevnonblank(v:lnum - 1)
" previous line of code
let lnum = s:PrevCodeLine(v:lnum - 1)
if lnum == 0
return 0
endif
" start with strings,comments,etc.{{{2
if (line !~ '^[''"`]' && s:IsSyn(v:lnum,1,'string\|template')) ||
\ (line !~ '^\s*[/*]' && s:IsSyn(v:lnum,1,s:syng_comment))
return -1
endif
if line !~ '^\%(\/\*\|\s*\/\/\)' && s:IsSyn(v:lnum,1,s:syng_comment)
return cindent(v:lnum)
endif
if (line =~ s:expr_case)
let cpo_switch = &cpo
set cpo+=%
let ind = cindent(v:lnum)
let &cpo = cpo_switch
return ind
endif
"}}}
" the containing paren, bracket, curly
let pcounts = [0]
if b:js_cache[0] >= lnum && b:js_cache[0] <= v:lnum && b:js_cache[0] &&
\ (b:js_cache[0] > lnum || map(pcounts,'s:LineHasOpeningBrackets(lnum)')[0][0] !~ '2')
let num = pcounts[0][0] =~ '1' ? lnum : b:js_cache[1]
if pcounts[0][0] =~'1'
call cursor(lnum,pcounts[0][1])
end
else
call cursor(v:lnum,1)
let syns = synIDattr(synID(v:lnum, 1, 1), 'name')
if line[0] =~ '\s' && syns != ''
let pattern = syns =~? 'funcblock' ? ['{','}'] : syns =~? 'jsparen' ? ['(',')'] : syns =~? 'jsbracket'? ['\[','\]'] :
\ ['(\|{\|\[',')\|}\|\]']
let num = s:lookForParens(pattern[0],pattern[1],'bW',2000)
else
let num = s:lookForParens('(\|{\|\[',')\|}\|\]','bW',2000)
end
end
let b:js_cache = [v:lnum,num,line('.') == v:lnum ? b:js_cache[2] : col('.')]
" most significant part
if line =~ s:line_pre . '[])}]'
return indent(num)
end
let inb = num == 0 ? 1 : s:Onescope(num, strpart(getline(num),0,b:js_cache[2] - 1),1)
let switch_offset = (!inb || num == 0) || expand("<cword>") != 'switch' ? 0 : &cino !~ ':' || !has('float') ? s:sw() :
\ float2nr(str2float(matchstr(&cino,'.*:\zs[-0-9.]*')) * (match(&cino,'.*:\zs[^,]*s') ? s:sw() : 1))
if ((line =~ g:javascript_opfirst ||
\ (getline(lnum) =~ g:javascript_continuation && getline(lnum) !~ s:expr_case)) &&
\ inb) || (s:Onescope(lnum,getline(lnum),0) && line !~ s:line_pre . '{')
return (num > 0 ? indent(num) : -s:sw()) + (s:sw() * 2) + switch_offset
elseif num > 0
return indent(num) + s:sw() + switch_offset
end
endfunction
let &cpo = s:cpo_save
unlet s:cpo_save
endif
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