85 lines
1.9 KiB
VimL
85 lines
1.9 KiB
VimL
|
" Vim indent file
|
||
|
|
" Language: Haskell
|
||
|
|
" Author: motemen <motemen@gmail.com>
|
||
|
|
" Version: 0.1
|
||
|
|
" Last Change: 2007-07-25
|
||
|
|
"
|
||
|
|
" Modify g:haskell_indent_if and g:haskell_indent_case to
|
||
|
|
" change indentation for `if'(default 3) and `case'(default 5).
|
||
|
|
" Example (in .vimrc):
|
||
|
|
" > let g:haskell_indent_if = 2
|
||
|
|
|
||
|
|
if exists('b:did_indent')
|
||
|
|
finish
|
||
|
|
endif
|
||
|
|
|
||
|
|
let b:did_indent = 1
|
||
|
|
|
||
|
|
if !exists('g:haskell_indent_if')
|
||
|
|
" if bool
|
||
|
|
" >>>then ...
|
||
|
|
" >>>else ...
|
||
|
|
let g:haskell_indent_if = 2
|
||
|
|
endif
|
||
|
|
|
||
|
|
if !exists('g:haskell_indent_case')
|
||
|
|
" case xs of
|
||
|
|
" >>>>>[] -> ...
|
||
|
|
" >>>>>(y:ys) -> ...
|
||
|
|
let g:haskell_indent_case = 2
|
||
|
|
endif
|
||
|
|
|
||
|
|
setlocal indentexpr=GetHaskellIndent()
|
||
|
|
setlocal indentkeys=!^F,o,O
|
||
|
|
|
||
|
|
function! GetHaskellIndent()
|
||
|
|
let line = substitute(getline(getpos('.')[1] - 1), '\t', repeat(' ', &tabstop), 'g')
|
||
|
|
|
||
|
|
if line =~ '[!#$%&*+./<=>?@\\^|~-]$\|\<do$'
|
||
|
|
return match(line, '\s*where \zs\|\S') + &shiftwidth
|
||
|
|
endif
|
||
|
|
|
||
|
|
if line =~ '{$'
|
||
|
|
return match(line, '\s*where \zs\|\S') + &shiftwidth
|
||
|
|
endif
|
||
|
|
|
||
|
|
if line =~ '^\(instance\|class\).*\&.*where$'
|
||
|
|
return &shiftwidth
|
||
|
|
endif
|
||
|
|
|
||
|
|
if line =~ ')$'
|
||
|
|
let pos = getpos('.')
|
||
|
|
normal k$
|
||
|
|
let paren_end = getpos('.')
|
||
|
|
normal %
|
||
|
|
let paren_begin = getpos('.')
|
||
|
|
call setpos('.', pos)
|
||
|
|
if paren_begin[1] != paren_end[1]
|
||
|
|
return paren_begin[2] - 1
|
||
|
|
endif
|
||
|
|
endif
|
||
|
|
|
||
|
|
if line !~ '\<else\>'
|
||
|
|
let s = match(line, '\<if\>.*\&.*\zs\<then\>')
|
||
|
|
if s > 0
|
||
|
|
return s
|
||
|
|
endif
|
||
|
|
|
||
|
|
let s = match(line, '\<if\>')
|
||
|
|
if s > 0
|
||
|
|
return s + g:haskell_indent_if
|
||
|
|
endif
|
||
|
|
endif
|
||
|
|
|
||
|
|
let s = match(line, '\<do\s\+\zs[^{]\|\<where\s\+\zs\w\|\<let\s\+\zs\S\|^\s*\zs|\s')
|
||
|
|
if s > 0
|
||
|
|
return s
|
||
|
|
endif
|
||
|
|
|
||
|
|
let s = match(line, '\<case\>')
|
||
|
|
if s > 0
|
||
|
|
return s + g:haskell_indent_case
|
||
|
|
endif
|
||
|
|
|
||
|
|
return match(line, '\S')
|
||
|
|
endfunction
|