From e2f8d56bc4ddf514641cec0187be73bc3339e728 Mon Sep 17 00:00:00 2001
From: Martin Grenfell <martin.grenfell@gmail.com>
Date: Sat, 12 Feb 2011 01:15:00 +1300
Subject: [PATCH 1/3] fix a bug with s:ErrorsForType()

compare the error type case insensitively since we cant know whether
errors will have a type of 'E' or 'e'
---
 plugin/syntastic.vim | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/plugin/syntastic.vim b/plugin/syntastic.vim
index cf4821b9..d66339d8 100644
--- a/plugin/syntastic.vim
+++ b/plugin/syntastic.vim
@@ -106,7 +106,7 @@ function! s:ErrorsForType(type)
     if !exists("b:syntastic_loclist")
         return []
     endif
-    return filter(copy(b:syntastic_loclist), 'v:val["type"] ==# "' . a:type . '"')
+    return filter(copy(b:syntastic_loclist), 'v:val["type"] ==? "' . a:type . '"')
 endfunction
 
 if g:syntastic_enable_signs

From 5dfedf994fc5ff6fdf2ad44dac1fcd2df84f6d58 Mon Sep 17 00:00:00 2001
From: Martin Grenfell <martin.grenfell@gmail.com>
Date: Sat, 12 Feb 2011 18:51:03 +1300
Subject: [PATCH 2/3] less checker: convert it to use errorformat/makeprg

this way we can add new expressions to errorformat to upgrade to
the latest lessc output while preserving backwards compatibility
---
 syntax_checkers/less.vim | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/syntax_checkers/less.vim b/syntax_checkers/less.vim
index ef6d3c7e..02684b60 100644
--- a/syntax_checkers/less.vim
+++ b/syntax_checkers/less.vim
@@ -20,13 +20,13 @@ if !executable("lessc")
 endif
 
 function! SyntaxCheckers_less_GetLocList()
-    let output = system("lessc " . shellescape(expand("%")))
-    if v:shell_error != 0
-        "less only outputs the first error, so parse it ourselves
-        let line = substitute(output, '^! Syntax Error: on line \(\d*\):.*$', '\1', '')
-        let msg = substitute(output, '^! Syntax Error: on line \d*:\(.*\)$', '\1', '')
-        return [{'lnum' : line, 'text' : msg, 'bufnr': bufnr(""), 'type': 'E' }]
-    endif
-    return []
-endfunction
+    let makeprg = 'lessc '. shellescape(expand('%'))
+    let errorformat = '! Syntax %trror: on line %l: %m,%-G%.%#'
+    let errors = SyntasticMake({ 'makeprg': makeprg, 'errorformat': errorformat })
 
+    for i in errors
+        let i['bufnr'] = bufnr("")
+    endfor
+
+    return errors
+endfunction

From db90009a119550a3b519e4218ea9b76b37d3952f Mon Sep 17 00:00:00 2001
From: Martin Grenfell <martin.grenfell@gmail.com>
Date: Sun, 13 Feb 2011 14:07:42 +1300
Subject: [PATCH 3/3] less checker: make it handle the new lessc output as well

---
 syntax_checkers/less.vim | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/syntax_checkers/less.vim b/syntax_checkers/less.vim
index 02684b60..912b5625 100644
--- a/syntax_checkers/less.vim
+++ b/syntax_checkers/less.vim
@@ -21,11 +21,15 @@ endif
 
 function! SyntaxCheckers_less_GetLocList()
     let makeprg = 'lessc '. shellescape(expand('%'))
-    let errorformat = '! Syntax %trror: on line %l: %m,%-G%.%#'
+    let errorformat = 'Syntax %trror on line %l,! Syntax %trror: on line %l: %m,%-G%.%#'
     let errors = SyntasticMake({ 'makeprg': makeprg, 'errorformat': errorformat })
 
     for i in errors
         let i['bufnr'] = bufnr("")
+
+        if empty(i['text'])
+            let i['text'] = "Syntax error"
+        endif
     endfor
 
     return errors