Set the end column for some Vint problems

ale_linters/vim/vint.vim

@@ -36,6 +36,32 @@ function! ale_linters#vim#vint#GetCommand(buffer, version_output) abort
     \   . ' %t'
 endfunction
 
+let s:word_regex_list = [
+\   '\v^Undefined variable: ([^ ]+)',
+\   '\v^Make the scope explicit like ...([^ ]+). ',
+\   '\v^.*start with a capital or contain a colon: ([^ ]+)',
+\   '\v.*instead of .(\=[=~]).',
+\]
+
+function! ale_linters#vim#vint#Handle(buffer, lines) abort
+    let l:loclist = ale#handlers#gcc#HandleGCCFormat(a:buffer, a:lines)
+
+    for l:item in l:loclist
+        let l:match = []
+
+        for l:regex in s:word_regex_list
+            let l:match = matchlist(l:item.text, l:regex)
+
+            if !empty(l:match)
+                let l:item.end_col = l:item.col + len(l:match[1]) - 1
+                break
+            endif
+        endfor
+    endfor
+
+    return l:loclist
+endfunction
+
 call ale#linter#Define('vim', {
 \   'name': 'vint',
 \   'executable': 'vint',
@@ -43,5 +69,5 @@ call ale#linter#Define('vim', {
 \       {'callback': 'ale_linters#vim#vint#VersionCommand', 'output_stream': 'stderr'},
 \       {'callback': 'ale_linters#vim#vint#GetCommand', 'output_stream': 'stdout'},
 \   ],
-\   'callback': 'ale#handlers#gcc#HandleGCCFormat',
+\   'callback': 'ale_linters#vim#vint#Handle',
 \})

test/handler/test_vint_handler.vader

@@ -1,6 +1,10 @@
-Execute(The vint handler should parse error messages correctly):
-  :file! gxc.vim
+Before:
+  runtime ale_linters/vim/vint.vim
 
+After:
+  call ale#linter#Reset()
+
+Execute(The vint handler should parse error messages correctly):
   AssertEqual
   \ [
   \   {
@@ -12,25 +16,44 @@ Execute(The vint handler should parse error messages correctly):
   \   {
   \     'lnum': 3,
   \     'col': 17,
+  \     'end_col': 18,
   \     'text': 'Use robust operators ''==#'' or ''==?'' instead of ''=='' (see Google VimScript Style Guide (Matching))',
   \     'type': 'W',
   \   },
   \   {
   \     'lnum': 3,
   \     'col': 8,
+  \     'end_col': 15,
   \     'text': 'Make the scope explicit like ''l:filename'' (see Anti-pattern of vimrc (Scope of identifier))',
   \     'type': 'W',
   \   },
   \   {
   \     'lnum': 7,
   \     'col': 8,
+  \     'end_col': 15,
   \     'text': 'Undefined variable: filename (see :help E738)',
   \     'type': 'W',
   \   },
+  \   {
+  \     'lnum': 8,
+  \     'col': 11,
+  \     'end_col': 16,
+  \     'text': 'E128: Function name must start with a capital or contain a colon: foobar (see ynkdir/vim-vimlparser)',
+  \     'type': 'E',
+  \   },
+  \   {
+  \     'lnum': 9,
+  \     'col': 12,
+  \     'end_col': 13,
+  \     'text': 'Use robust operators ''=~#'' or ''=~?'' instead of ''=~'' (see Google VimScript Style Guide (Matching))',
+  \     'type': 'W',
+  \   },
   \ ],
-  \ ale#handlers#gcc#HandleGCCFormat(347, [
+  \ ale_linters#vim#vint#Handle(bufnr(''), [
   \   'gcc.vim:1:1: warning: Use scriptencoding when multibyte char exists (see :help :script encoding)',
   \   'gcc.vim:3:17: warning: Use robust operators `==#` or `==?` instead of `==` (see Google VimScript Style Guide (Matching))',
   \   'gcc.vim:3:8: style_problem: Make the scope explicit like `l:filename` (see Anti-pattern of vimrc (Scope of identifier))',
   \   'gcc.vim:7:8: warning: Undefined variable: filename (see :help E738)',
+  \   'gcc.vim:8:11: error: E128: Function name must start with a capital or contain a colon: foobar (see ynkdir/vim-vimlparser)',
+  \   'gcc.vim:9:12: warning: Use robust operators `=~#` or `=~?` instead of `=~` (see Google VimScript Style Guide (Matching))',
   \ ])