81 lines
2.0 KiB
VimL
81 lines
2.0 KiB
VimL
if exists('g:loaded_ale_cursor')
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finish
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endif
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let g:loaded_ale_cursor = 1
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" This function will perform a binary search to find a message from the
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" loclist to echo when the cursor moves.
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function! s:BinarySearch(loclist, line, column)
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let min = 0
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let max = len(a:loclist) - 1
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let last_column_match = -1
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while 1
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if max < min
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return last_column_match
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endif
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let mid = (min + max) / 2
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let obj = a:loclist[mid]
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" Binary search to get on the same line
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if a:loclist[mid]['lnum'] < a:line
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let min = mid + 1
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elseif a:loclist[mid]['lnum'] > a:line
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let max = mid - 1
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else
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let last_column_match = mid
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" Binary search to get the same column, or near it
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if a:loclist[mid]['col'] < a:column
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let min = mid + 1
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elseif a:loclist[mid]['col'] > a:column
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let max = mid - 1
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else
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return mid
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endif
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endif
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endwhile
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endfunction
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function! ale#cursor#TruncatedEcho(message)
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let message = a:message
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" Change tabs to spaces.
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let message = substitute(message, "\t", ' ', 'g')
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" Remove any newlines in the message.
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let message = substitute(message, "\n", '', 'g')
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let truncated_message = join(split(message, '\zs')[:&columns - 2], '')
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" Echo the message truncated to fit without creating a prompt.
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echo truncated_message
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endfunction
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function! ale#cursor#EchoCursorWarning()
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let buffer = bufnr('%')
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if !has_key(g:ale_buffer_loclist_map, buffer)
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return
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endif
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let loclist = g:ale_buffer_loclist_map[buffer]
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let pos = getcurpos()
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let index = s:BinarySearch(loclist, pos[1], pos[2])
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if index >= 0
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call ale#cursor#TruncatedEcho(loclist[index]['text'])
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else
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echo
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endif
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endfunction
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if g:ale_echo_cursor
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augroup ALECursorGroup
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autocmd!
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autocmd CursorMoved * call ale#cursor#EchoCursorWarning()
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augroup END
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endif
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