Checker ghc-mod: attempt to fix filename encodings.

lcd047 · lcd047 · commit b609b3bdd377 · 2015-06-18T13:27:41.000+03:00
ghc-mod will always use UTF-8 encoding on output, regardless of the
current encoding.  This is a problem for syntastic because it mangles
the filenames.  The commit below is a (perhaps misguided) attempt to
fix that, by calling iconv() to re-encode output from ghc-mod to Vim's
encoding.
diff --git a/autoload/syntastic/preprocess.vim b/autoload/syntastic/preprocess.vim
@@ -128,6 +128,13 @@ endfunction " }}}2
 " @vimlint(EVL102, 0, l:false)
 " @vimlint(EVL102, 0, l:null)
 
+function! syntastic#preprocess#iconv(errors) abort " {{{2
+    return
+        \ (has('iconv') || has('iconv/dyn')) && &encoding !=# '' && &encoding !=# 'utf-8' ?
+        \       map(a:errors, 'iconv(v:val, "utf-8", &encoding)') :
+        \       a:errors
+endfunction " }}}2
+
 function! syntastic#preprocess#killEmpty(errors) abort " {{{2
     return filter(copy(a:errors), 'v:val !=# ""')
 endfunction " }}}2
diff --git a/plugin/syntastic.vim b/plugin/syntastic.vim
@@ -19,7 +19,7 @@ if has('reltime')
     lockvar! g:_SYNTASTIC_START
 endif
 
-let g:_SYNTASTIC_VERSION = '3.6.0-93'
+let g:_SYNTASTIC_VERSION = '3.6.0-96'
 lockvar g:_SYNTASTIC_VERSION
 
 " Sanity checks {{{1
diff --git a/syntax_checkers/haskell/ghc-mod.vim b/syntax_checkers/haskell/ghc-mod.vim
@@ -68,6 +68,7 @@ function! SyntaxCheckers_haskell_ghc_mod_GetLocList() dict
     return SyntasticMake({
         \ 'makeprg': makeprg,
         \ 'errorformat': errorformat,
+        \ 'preprocess': 'iconv',
         \ 'postprocess': ['compressWhitespace'],
         \ 'returns': [0] })
 endfunction
