vim-polyglot/indent/elixir.vim
2013-09-12 17:31:56 +02:00

62 lines
1.6 KiB
VimL

" Vim indent file
" Language: Elixir
" Maintainer: Carlos Galdino <carloshsgaldino@gmail.com>
" Last Change: 2013 Apr 24
if exists("b:did_indent")
finish
endif
let b:did_indent = 1
setlocal nosmartindent
setlocal indentexpr=GetElixirIndent(v:lnum)
setlocal indentkeys+==end,=else:,=match:,=elsif:,=catch:,=after:,=rescue:
if exists("*GetElixirIndent")
finish
endif
let s:cpo_save = &cpo
set cpo&vim
let s:skip_syntax = '\%(Comment\|String\)$'
let s:block_skip = "synIDattr(synID(line('.'),col('.'),1),'name') =~? '" . s:skip_syntax . "'"
let s:block_start = 'do\|fn'
let s:block_middle = 'else\|match\|elsif\|catch\|after\|rescue'
let s:block_end = 'end'
let s:indent_keywords = '\<\%(' . s:block_start . '\|' . s:block_middle . '\)$'
let s:deindent_keywords = '^\s*\<\%(' . s:block_end . '\|' . s:block_middle . '\)\>'
function! GetElixirIndent(...)
let lnum = prevnonblank(v:lnum - 1)
let ind = indent(lnum)
" At the start of the file use zero indent.
if lnum == 0
return 0
endif
if synIDattr(synID(v:lnum, 1, 1), "name") !~ '\(Comment\|String\)$'
if getline(lnum) =~ s:indent_keywords .
\ '\|^\s*\%(^.*[\[{(].*[,:]\|.*->\)$'
let ind += &sw
endif
if getline(v:lnum) =~ s:deindent_keywords
let bslnum = searchpair( '\<\%(' . s:block_start . '\):\@!\>',
\ '\<\%(' . s:block_middle . '\):\@!\>\zs',
\ '\<:\@<!' . s:block_end . '\>\zs',
\ 'nbW',
\ s:block_skip )
let ind = indent(bslnum)
endif
endif
return ind
endfunction
let &cpo = s:cpo_save
unlet s:cpo_save