scala: add fsc syntax checker

syntax_checkers/scala/fsc.vim

@@ -0,0 +1,44 @@
+"============================================================================
+"File:        fsc.vim
+"Description: Syntax checking plugin for syntastic.vim
+"Maintainer:  Gregor Uhlenheuer <kongo2002 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_scala_fsc_checker')
+    finish
+endif
+let g:loaded_syntastic_scala_fsc_checker = 1
+
+function! SyntaxCheckers_scala_fsc_IsAvailable()
+    return executable('fsc')
+endfunction
+
+if !exists('g:syntastic_scala_options')
+    let g:syntastic_scala_options = ''
+endif
+
+function! SyntaxCheckers_scala_fsc_GetLocList()
+    " fsc has some serious problems with the
+    " working directory changing after being started
+    " that's why we better pass an absolute path
+    let file = expand('%:p')
+
+    let args = '-Ystop-after:parser ' . g:syntastic_scala_options
+    let makeprg = 'fsc ' . args . ' ' . file
+
+    let errorformat = '%f\:%l: %trror: %m'
+
+    return SyntasticMake({
+        \ 'makeprg': makeprg,
+        \ 'errorformat': errorformat })
+endfunction
+
+call g:SyntasticRegistry.CreateAndRegisterChecker({
+    \ 'filetype': 'scala',
+    \ 'name': 'fsc'})