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" Author: rhysd https://rhysd.github.io
" Description: Redpen, a proofreading tool (http://redpen.cc)
function! ale#handlers#redpen#HandleRedpenOutput(buffer, lines) abort
" Only one file was passed to redpen. So response array has only one
" element.
let l:res = get(ale#util#FuzzyJSONDecode(a:lines, []), 0, {})
let l:output = []
for l:err in get(l:res, 'errors', [])
let l:item = {
\ 'text': l:err.message,
\ 'type': 'W',
\ 'code': l:err.validator,
\}
if has_key(l:err, 'startPosition')
let l:item.lnum = l:err.startPosition.lineNum
let l:item.col = l:err.startPosition.offset + 1
if has_key(l:err, 'endPosition')
let l:item.end_lnum = l:err.endPosition.lineNum
let l:item.end_col = l:err.endPosition.offset
endif
else
" Fallback to a whole sentence region when a region is not
" specified by the error.
let l:item.lnum = l:err.lineNum
let l:item.col = l:err.sentenceStartColumnNum + 1
endif
" Adjust column number for multibyte string
let l:line = getline(l:item.lnum)
if l:line is# ''
let l:line = l:err.sentence
endif
let l:line = split(l:line, '\zs')
if l:item.col >= 2
let l:col = 0
for l:strlen in map(l:line[0:(l:item.col - 2)], 'strlen(v:val)')
let l:col = l:col + l:strlen
endfor
let l:item.col = l:col + 1
endif
if has_key(l:item, 'end_col')
let l:col = 0
for l:strlen in map(l:line[0:(l:item.end_col - 1)], 'strlen(v:val)')
let l:col = l:col + l:strlen
endfor
let l:item.end_col = l:col
endif
call add(l:output, l:item)
endfor
return l:output
endfunction
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