The ultimate Vim configuration: vimrc
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" Author: zanona <https://github.com/zanona>, w0rp <devw0rp@gmail.com>
" Description: This file adds support for checking Less code with lessc.
call ale#Set('less_lessc_executable', 'lessc')
call ale#Set('less_lessc_options', '')
call ale#Set('less_lessc_use_global', get(g:, 'ale_use_global_executables', 0))
function! ale_linters#less#lessc#GetExecutable(buffer) abort
return ale#node#FindExecutable(a:buffer, 'less_lessc', [
\ 'node_modules/.bin/lessc',
\])
endfunction
function! ale_linters#less#lessc#GetCommand(buffer) abort
let l:executable = ale_linters#less#lessc#GetExecutable(a:buffer)
let l:dir = expand('#' . a:buffer . ':p:h')
let l:options = ale#Var(a:buffer, 'less_lessc_options')
return ale#Escape(l:executable)
\ . ' --no-color --lint'
\ . ' --include-path=' . ale#Escape(l:dir)
\ . (!empty(l:options) ? ' ' . l:options : '')
\ . ' -'
endfunction
function! ale_linters#less#lessc#Handle(buffer, lines) abort
let l:dir = expand('#' . a:buffer . ':p:h')
" Matches patterns like the following:
let l:pattern = '^\(\w\+\): \(.\{-}\) in \(.\{-}\) on line \(\d\+\), column \(\d\+\):$'
let l:output = []
for l:match in ale#util#GetMatches(a:lines, l:pattern)
let l:item = {
\ 'lnum': l:match[4] + 0,
\ 'col': l:match[5] + 0,
\ 'text': l:match[2],
\ 'type': 'E',
\}
if l:match[3] isnot# '-'
let l:item.filename = ale#path#GetAbsPath(l:dir, l:match[3])
endif
call add(l:output, l:item)
endfor
return l:output
endfunction
call ale#linter#Define('less', {
\ 'name': 'lessc',
\ 'executable_callback': 'ale_linters#less#lessc#GetExecutable',
\ 'command_callback': 'ale_linters#less#lessc#GetCommand',
\ 'callback': 'ale_linters#less#lessc#Handle',
\ 'output_stream': 'stderr',
\})