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Parsimonious buffer updates #122

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Parsimonious buffer updates #122

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14 changes: 10 additions & 4 deletions autoload/clang_format.vim
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Original file line number Diff line number Diff line change
Expand Up @@ -260,13 +260,19 @@ function! clang_format#replace_ranges(ranges, ...) abort
endif

let winview = winsaveview()
let splitted = split(formatted, '\n', 1)

silent! undojoin
if line('$') > len(splitted)
execute len(splitted) .',$delete' '_'
let line_num = 0
for line in split(formatted, '\n', 1)
let line_num += 1
if line != getline(line_num)
call setline(line_num, line)
endif
endfor
if line('$') > line_num
execute (line_num + 1) .',$delete' '_'
endif
call setline(1, splitted)

call winrestview(winview)
call setpos('.', pos_save)
endfunction
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