Rename the SASS files to follow the convention from other files, and move the function for handling CSSLint style output into the handlers file.

ale_linters/css/csslint.vim

@@ -7,56 +7,9 @@ endif
 
 let g:loaded_ale_linters_css_csslint = 1
 
-function! ale_linters#css#csslint#Handle(buffer, lines)
-    " Matches patterns line the following:
-    "
-    " something.css: line 2, col 1, Error - Expected RBRACE at line 2, col 1. (errors)
-    " something.css: line 2, col 5, Warning - Expected (inline | block | list-item | inline-block | table | inline-table | table-row-group | table-header-group | table-footer-group | table-row | table-column-group | table-column | table-cell | table-caption | grid | inline-grid | run-in | ruby | ruby-base | ruby-text | ruby-base-container | ruby-text-container | contents | none | -moz-box | -moz-inline-block | -moz-inline-box | -moz-inline-grid | -moz-inline-stack | -moz-inline-table | -moz-grid | -moz-grid-group | -moz-grid-line | -moz-groupbox | -moz-deck | -moz-popup | -moz-stack | -moz-marker | -webkit-box | -webkit-inline-box | -ms-flexbox | -ms-inline-flexbox | flex | -webkit-flex | inline-flex | -webkit-inline-flex) but found 'wat'. (known-properties)
-    "
-    " These errors can be very massive, so the type will be moved to the front
-    " so you can actually read the error type.
-    let pattern = '^.*: line \(\d\+\), col \(\d\+\), \(Error\|Warning\) - \(.\+\) (\([^)]\+\))$'
-    let output = []
-    " Some errors have line numbers beyond the end of the file,
-    " so we need to adjust them so they set the error at the last line
-    " of the file instead.
-    "
-    " TODO: Find a faster way to compute this.
-    let last_line_number = len(getbufline(a:buffer, 1, '$'))
-
-    for line in a:lines
-        let l:match = matchlist(line, pattern)
-
-        if len(l:match) == 0
-            continue
-        endif
-
-        let text = l:match[4]
-        let type = l:match[3]
-        let errorGroup = l:match[5]
-
-        " Put the error group at the front, so we can see what kind of error
-        " it is on small echo lines.
-        let text = '(' . errorGroup . ') ' . text
-
-        " vcol is Needed to indicate that the column is a character.
-        call add(output, {
-        \   'bufnr': a:buffer,
-        \   'lnum': min([l:match[1] + 0, last_line_number]),
-        \   'vcol': 0,
-        \   'col': l:match[2] + 0,
-        \   'text': text,
-        \   'type': type ==# 'Warning' ? 'W' : 'E',
-        \   'nr': -1,
-        \})
-    endfor
-
-    return output
-endfunction
-
 call ALEAddLinter('css', {
 \   'name': 'csslint',
 \   'executable': 'csslint',
 \   'command': g:ale#util#stdin_wrapper . ' .css csslint --format=compact',
-\   'callback': 'ale_linters#css#csslint#Handle',
+\   'callback': 'ale#handlers#HandleCSSLintFormat',
 \})

ale_linters/sass/sasslint.vim

@@ -1,14 +1,14 @@
 " Author: KabbAmine - https://github.com/KabbAmine
 
-if exists('g:loaded_ale_linters_sass_sassLint')
+if exists('g:loaded_ale_linters_sass_sasslint')
     finish
 endif
 
-let g:loaded_ale_linters_sass_sassLint = 1
+let g:loaded_ale_linters_sass_sasslint = 1
 
 call ALEAddLinter('sass', {
 \   'name': 'sassLint',
 \   'executable': 'sass-lint',
 \   'command': g:ale#util#stdin_wrapper . ' .sass sass-lint -v -q -f compact',
-\   'callback': 'ale_linters#css#csslint#Handle',
+\   'callback': 'ale#handlers#HandleCSSLintFormat',
 \})

ale_linters/scss/sasslint.vim

@@ -1,14 +1,14 @@
 " Author: KabbAmine - https://github.com/KabbAmine
 
-if exists('g:loaded_ale_linters_scss_sassLint')
+if exists('g:loaded_ale_linters_scss_sasslint')
     finish
 endif
 
-let g:loaded_ale_linters_scss_sassLint = 1
+let g:loaded_ale_linters_scss_sasslint = 1
 
 call ALEAddLinter('scss', {
 \   'name': 'sassLint',
 \   'executable': 'sass-lint',
 \   'command': g:ale#util#stdin_wrapper . ' .scss sass-lint -v -q -f compact',
-\   'callback': 'ale_linters#css#csslint#Handle',
+\   'callback': 'ale#handlers#HandleCSSLintFormat',
 \})

plugin/ale/handlers.vim

@@ -38,3 +38,50 @@ function! ale#handlers#HandleGCCFormat(buffer, lines)
 
     return output
 endfunction
+
+function! ale#handlers#HandleCSSLintFormat(buffer, lines)
+    " Matches patterns line the following:
+    "
+    " something.css: line 2, col 1, Error - Expected RBRACE at line 2, col 1. (errors)
+    " something.css: line 2, col 5, Warning - Expected (inline | block | list-item | inline-block | table | inline-table | table-row-group | table-header-group | table-footer-group | table-row | table-column-group | table-column | table-cell | table-caption | grid | inline-grid | run-in | ruby | ruby-base | ruby-text | ruby-base-container | ruby-text-container | contents | none | -moz-box | -moz-inline-block | -moz-inline-box | -moz-inline-grid | -moz-inline-stack | -moz-inline-table | -moz-grid | -moz-grid-group | -moz-grid-line | -moz-groupbox | -moz-deck | -moz-popup | -moz-stack | -moz-marker | -webkit-box | -webkit-inline-box | -ms-flexbox | -ms-inline-flexbox | flex | -webkit-flex | inline-flex | -webkit-inline-flex) but found 'wat'. (known-properties)
+    "
+    " These errors can be very massive, so the type will be moved to the front
+    " so you can actually read the error type.
+    let pattern = '^.*: line \(\d\+\), col \(\d\+\), \(Error\|Warning\) - \(.\+\) (\([^)]\+\))$'
+    let output = []
+    " Some errors have line numbers beyond the end of the file,
+    " so we need to adjust them so they set the error at the last line
+    " of the file instead.
+    "
+    " TODO: Find a faster way to compute this.
+    let last_line_number = len(getbufline(a:buffer, 1, '$'))
+
+    for line in a:lines
+        let l:match = matchlist(line, pattern)
+
+        if len(l:match) == 0
+            continue
+        endif
+
+        let text = l:match[4]
+        let type = l:match[3]
+        let errorGroup = l:match[5]
+
+        " Put the error group at the front, so we can see what kind of error
+        " it is on small echo lines.
+        let text = '(' . errorGroup . ') ' . text
+
+        " vcol is Needed to indicate that the column is a character.
+        call add(output, {
+        \   'bufnr': a:buffer,
+        \   'lnum': min([l:match[1] + 0, last_line_number]),
+        \   'vcol': 0,
+        \   'col': l:match[2] + 0,
+        \   'text': text,
+        \   'type': type ==# 'Warning' ? 'W' : 'E',
+        \   'nr': -1,
+        \})
+    endfor
+
+    return output
+endfunction