142 lines
2.9 KiB
VimL
142 lines
2.9 KiB
VimL
if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'purescript') == -1
|
|
|
|
" indentation for purescript
|
|
"
|
|
" Based on idris indentation
|
|
"
|
|
" author: raichoo (raichoo@googlemail.com)
|
|
"
|
|
" Modify g:purescript_indent_if and g:purescript_indent_case to
|
|
" change indentation for `if'(default 3) and `case'(default 5).
|
|
" Example (in .vimrc):
|
|
" > let g:purescript_indent_if = 2
|
|
|
|
if exists('b:did_indent')
|
|
finish
|
|
endif
|
|
|
|
let b:did_indent = 1
|
|
|
|
if !exists('g:purescript_indent_if')
|
|
" if bool
|
|
" >>>then ...
|
|
" >>>else ...
|
|
let g:purescript_indent_if = 3
|
|
endif
|
|
|
|
if !exists('g:purescript_indent_case')
|
|
" case xs of
|
|
" >>>>>[] -> ...
|
|
" >>>>>(y:ys) -> ...
|
|
let g:purescript_indent_case = 5
|
|
endif
|
|
|
|
if !exists('g:purescript_indent_let')
|
|
" let x = 0 in
|
|
" >>>>x
|
|
let g:purescript_indent_let = 4
|
|
endif
|
|
|
|
if !exists('g:purescript_indent_where')
|
|
" where f :: Int -> Int
|
|
" >>>>>>f x = x
|
|
let g:purescript_indent_where = 6
|
|
endif
|
|
|
|
if !exists('g:purescript_indent_do')
|
|
" do x <- a
|
|
" >>>y <- b
|
|
let g:purescript_indent_do = 3
|
|
endif
|
|
|
|
setlocal indentexpr=GetPurescriptIndent()
|
|
setlocal indentkeys=!^F,o,O,},=where,=in
|
|
|
|
function! GetPurescriptIndent()
|
|
let prevline = getline(v:lnum - 1)
|
|
let line = getline(v:lnum)
|
|
|
|
if line =~ '^\s*\<where\>'
|
|
let s = match(prevline, '\S')
|
|
return s + 2
|
|
endif
|
|
|
|
if line =~ '^\s*\<in\>'
|
|
let n = v:lnum
|
|
let s = 0
|
|
|
|
while s <= 0 && n > 0
|
|
let n = n - 1
|
|
let s = match(getline(n),'\<let\>')
|
|
endwhile
|
|
|
|
return s + 1
|
|
endif
|
|
|
|
if prevline =~ '[!#$%&*+./<>?@\\^|~-]\s*$'
|
|
let s = match(prevline, '=')
|
|
if s > 0
|
|
return s + 2
|
|
endif
|
|
|
|
let s = match(prevline, ':')
|
|
if s > 0
|
|
return s + 3
|
|
else
|
|
return match(prevline, '\S')
|
|
endif
|
|
endif
|
|
|
|
if prevline =~ '[{([][^})\]]\+$'
|
|
return match(prevline, '[{([]')
|
|
endif
|
|
|
|
if prevline =~ '\<let\>\s\+.\+\(\<in\>\)\?\s*$'
|
|
return match(prevline, '\<let\>') + g:purescript_indent_let
|
|
endif
|
|
|
|
if prevline !~ '\<else\>'
|
|
let s = match(prevline, '\<if\>.*\&.*\zs\<then\>')
|
|
if s > 0
|
|
return s
|
|
endif
|
|
|
|
let s = match(prevline, '\<if\>')
|
|
if s > 0
|
|
return s + g:purescript_indent_if
|
|
endif
|
|
endif
|
|
|
|
if prevline =~ '\(\<where\>\|\<do\>\|=\|[{([]\)\s*$'
|
|
return match(prevline, '\S') + &shiftwidth
|
|
endif
|
|
|
|
if prevline =~ '\<where\>\s\+\S\+.*$'
|
|
return match(prevline, '\<where\>') + g:purescript_indent_where
|
|
endif
|
|
|
|
if prevline =~ '\<do\>\s\+\S\+.*$'
|
|
return match(prevline, '\<do\>') + g:purescript_indent_do
|
|
endif
|
|
|
|
if prevline =~ '^\s*\<data\>\s\+[^=]\+\s\+=\s\+\S\+.*$'
|
|
return match(prevline, '=')
|
|
endif
|
|
|
|
if prevline =~ '\<case\>\s\+.\+\<of\>\s*$'
|
|
return match(prevline, '\<case\>') + g:purescript_indent_case
|
|
endif
|
|
|
|
if prevline =~ '^\s*\<\data\>\s\+\S\+\s*$'
|
|
return match(prevline, '\<data\>') + &shiftwidth
|
|
endif
|
|
|
|
if (line =~ '^\s*}\s*' && prevline !~ '^\s*;')
|
|
return match(prevline, '\S') - &shiftwidth
|
|
endif
|
|
|
|
return match(prevline, '\S')
|
|
endfunction
|
|
|
|
endif
|