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"============================================================================
"File: ghc-mod.vim
"Description: Syntax checking plugin for syntastic.vim
"Maintainer: Anthony Carapetis <anthony.carapetis at gmail dot com>
"License: This program is free software. It comes without any warranty,
" to the extent permitted by applicable law. You can redistribute
" it and/or modify it under the terms of the Do What The Fuck You
" Want To Public License, Version 2, as published by Sam Hocevar.
" See http://sam.zoy.org/wtfpl/COPYING for more details.
"
"============================================================================
if exists('g:loaded_syntastic_haskell_ghc_mod_checker')
finish
endif
let g:loaded_syntastic_haskell_ghc_mod_checker = 1
let s:ghc_mod_new = -1
let s:save_cpo = &cpo
set cpo&vim
function! SyntaxCheckers_haskell_ghc_mod_IsAvailable() dict " {{{1
if !executable(self.getExec())
return 0
endif
" ghc-mod 5.0.0 and later needs the "version" command to print the
" version. But the "version" command appeared in 4.1.0. Thus, we need to
" know the version in order to know how to find out the version. :)
" Try "ghc-mod version".
let version_output = split(syntastic#util#system(self.getExecEscaped() . ' version'), '\n', 1)
let ver = filter(copy(version_output), 'v:val =~# ''\m\sversion''')
if !len(ver)
" That didn't work. Try "ghc-mod" alone.
let version_output = split(syntastic#util#system(self.getExecEscaped()), '\n', 1)
let ver = filter(copy(version_output), 'v:val =~# ''\m\sversion''')
endif
let parsed_ver = len(ver) ? syntastic#util#parseVersion(ver[0]) : []
if len(parsed_ver)
" Encouraged by the great success in finding out the version, now we
" need either a Vim that can handle NULs in system() output, or a
" ghc-mod that has the "--boundary" option.
call self.setVersion(parsed_ver)
let s:ghc_mod_new = syntastic#util#versionIsAtLeast(parsed_ver, [2, 1, 2])
else
call syntastic#log#ndebug(g:_SYNTASTIC_DEBUG_LOCLIST, 'checker output:', version_output)
call syntastic#log#error("checker haskell/ghc_mod: can't parse version string (abnormal termination?)")
let s:ghc_mod_new = -1
endif
" ghc-mod 5.4.0 wants to run in the root directory of the project;
" syntastic can't cope with the resulting complications
"
" References:
" https://hackage.haskell.org/package/ghc-mod-5.4.0.0/changelog
let s:ghc_mod_bailout = syntastic#util#versionIsAtLeast(parsed_ver, [5, 4])
return (s:ghc_mod_new >= 0) && (v:version >= 704 || s:ghc_mod_new) && !s:ghc_mod_bailout
endfunction " }}}1
function! SyntaxCheckers_haskell_ghc_mod_GetLocList() dict " {{{1
let makeprg = self.makeprgBuild({
\ 'exe': self.getExecEscaped() . ' check' . (s:ghc_mod_new ? ' --boundary=""' : '') })
let errorformat =
\ '%-G%\s%#,' .
\ '%f:%l:%c:%trror: %m,' .
\ '%f:%l:%c:%tarning: %m,'.
\ '%f:%l:%c: %trror: %m,' .
\ '%f:%l:%c: %tarning: %m,' .
\ '%f:%l:%c:%m,' .
\ '%E%f:%l:%c:,' .
\ '%Z%m'
return SyntasticMake({
\ 'makeprg': makeprg,
\ 'errorformat': errorformat,
\ 'preprocess': 'iconv',
\ 'postprocess': ['compressWhitespace'],
\ 'returns': [0] })
endfunction " }}}1
call g:SyntasticRegistry.CreateAndRegisterChecker({
\ 'filetype': 'haskell',
\ 'name': 'ghc_mod',
\ 'exec': 'ghc-mod' })
let &cpo = s:save_cpo
unlet s:save_cpo
" vim: set sw=4 sts=4 et fdm=marker:
|
