OClint can check Objective-C files. Cleanup.

syntax_checkers/c/oclint.vim

@@ -16,10 +16,10 @@
 "
 "   let g:syntastic_oclint_config_file = '.config'
 
-if exists("loaded_oclint_syntax_checker")
+if exists("g:loaded_syntastic_c_oclint_checker")
     finish
 endif
-let loaded_oclint_syntax_checker = 1
+let g:loaded_syntastic_c_oclint_checker = 1
 
 function! SyntaxCheckers_c_oclint_IsAvailable()
     return executable("oclint")
@@ -37,15 +37,23 @@ function! SyntaxCheckers_c_oclint_GetLocList()
         \ 'subchecker': 'oclint' })
 
     let errorformat =
-        \ '%f:%l:%c:\ %m,' .
+        \ '%W%f:%l:%c: %m,' .
+        \ '%E%f:%l:%c: error: %m,' .
         \ '%-G%.%#'
 
-    return SyntasticMake({
+    let loclist = SyntasticMake({
         \ 'makeprg': makeprg,
         \ 'errorformat': errorformat,
         \ 'subtype': 'Style',
-        \ 'postprocess': ['compressWhitespace'],
-        \ 'defaults': {'type': 'W'} })
+        \ 'postprocess': ['compressWhitespace', 'sort'] })
+
+    for n in range(len(loclist))
+        if loclist[n]['text'] =~# ' P[12] \=$'
+            let loclist[n]['type'] = 'E'
+        endif
+    endfor
+
+    return loclist
 endfunction
 
 call g:SyntasticRegistry.CreateAndRegisterChecker({

syntax_checkers/cpp/oclint.vim

@@ -16,10 +16,10 @@
 "
 "   let g:syntastic_oclint_config_file = '.config'
 
-if exists("loaded_oclint_syntax_checker")
+if exists("g:loaded_syntastic_cpp_oclint_checker")
     finish
 endif
-let loaded_oclint_syntax_checker = 1
+let g:loaded_syntastic_cpp_oclint_checker = 1
 
 function! SyntaxCheckers_cpp_oclint_IsAvailable()
     return executable("oclint")
@@ -37,15 +37,23 @@ function! SyntaxCheckers_cpp_oclint_GetLocList()
         \ 'subchecker': 'oclint' })
 
     let errorformat =
-        \ '%f:%l:%c:\ %m,' .
+        \ '%W%f:%l:%c: %m,' .
+        \ '%E%f:%l:%c: error: %m,' .
         \ '%-G%.%#'
 
-    return SyntasticMake({
+    let loclist = SyntasticMake({
         \ 'makeprg': makeprg,
         \ 'errorformat': errorformat,
         \ 'subtype': 'Style',
-        \ 'postprocess': ['compressWhitespace'],
-        \ 'defaults': {'type': 'W'} })
+        \ 'postprocess': ['compressWhitespace', 'sort'] })
+
+    for n in range(len(loclist))
+        if loclist[n]['text'] =~# ' P[12] \=$'
+            let loclist[n]['type'] = 'E'
+        endif
+    endfor
+
+    return loclist
 endfunction
 
 call g:SyntasticRegistry.CreateAndRegisterChecker({

syntax_checkers/objc/oclint.vim

@@ -0,0 +1,61 @@
+"============================================================================
+"File:        oclint.vim
+"Description: Syntax checking plugin for syntastic.vim
+"Maintainer:  "UnCO" Lin <undercooled aT lavabit 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.
+"============================================================================
+"
+" The setting 'g:syntastic_oclint_config_file' allows you to define a file
+" that contains additional compiler arguments like include directories or
+" CFLAGS. The file is expected to contain one option per line. If none is
+" given the filename defaults to '.syntastic_oclint_config':
+"
+"   let g:syntastic_oclint_config_file = '.config'
+
+if exists("g:loaded_syntastic_objc_oclint_checker")
+    finish
+endif
+let g:loaded_syntastic_objc_oclint_checker = 1
+
+function! SyntaxCheckers_objc_oclint_IsAvailable()
+    return executable("oclint")
+endfunction
+
+if !exists('g:syntastic_oclint_config_file')
+    let g:syntastic_oclint_config_file = '.syntastic_oclint_config'
+endif
+
+function! SyntaxCheckers_objc_oclint_GetLocList()
+    let makeprg = syntastic#makeprg#build({
+        \ 'exe': 'oclint',
+        \ 'args': '-text',
+        \ 'post_args': '-- -c' . syntastic#c#ReadConfig(g:syntastic_oclint_config_file),
+        \ 'subchecker': 'oclint' })
+
+    let errorformat =
+        \ '%W%f:%l:%c: %m,' .
+        \ '%E%f:%l:%c: error: %m,' .
+        \ '%-G%.%#'
+
+    let loclist = SyntasticMake({
+        \ 'makeprg': makeprg,
+        \ 'errorformat': errorformat,
+        \ 'subtype': 'Style',
+        \ 'postprocess': ['compressWhitespace', 'sort'] })
+
+    for n in range(len(loclist))
+        if loclist[n]['text'] =~# ' P[12] \=$'
+            let loclist[n]['type'] = 'E'
+        endif
+    endfor
+
+    return loclist
+endfunction
+
+call g:SyntasticRegistry.CreateAndRegisterChecker({
+    \ 'filetype': 'objc',
+    \ 'name': 'oclint'})