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( Vim )全角スペースを表示、全角スペースを半角スペースに変換、文末の全角スペースを削除する

Last updated at Posted at 2019-04-03

Screen Shot 2019-04-03 at 13.34.03.png

Summary

Vim

  1. 全角スペースを表示

  2. 全角スペースを半角スペースに変換

  3. 文末の全角スペースを削除

全角スペースを表示する

autocmd MyAutoCmd ColorScheme * highlight UnicodeSpaces  ctermbg=131  guibg=#af5f5f
autocmd MyAutoCmd BufRead,BufNewFile * call matchadd(
      \ 'UnicodeSpaces', '\v' .
      \ '%u180E|%u2028|%u2029|%u00A0|%u2000|%u2001|' .
      \ '%u2002|%u2003|%u2004|%u2005|%u2006|%u2007|' .
      \ '%u2008|%u2009|%u200A|%u202F|%u205F|%u3000'
      \ )

全角スペースを半角スペースにする

command! Spaces call s:spaces()
function! s:spaces() abort

  " mark origin position
  :normal! ma

  let l:range = '%'

  let l:unicodeSpaces = '\v' .
    \ '%u180E|%u2028|%u2029|%u00A0|%u2000|%u2001|' .
    \ '%u2002|%u2003|%u2004|%u2005|%u2006|%u2007|' .
    \ '%u2008|%u2009|%u200A|%u202F|%u205F|%u3000'

  let l:space = ' '

  " Replace unicode spaces to normal space
  :execute l:range 'substitute' '/\v(' . l:unicodeSpaces . ')/' . l:space . '/ge'

  " back to origin position
  :normal! `a

endfunction

文末の半角・全角スペースのみ削除する

  command! TrimEnd call s:trimEnd()
  function! s:trimEnd() abort

    " mark origin position
    :normal! ma

    let l:range = '%'

    let l:unicodeSpaces = '\v' .
      \ '%u180E|%u2028|%u2029|%u00A0|%u2000|%u2001|' .
      \ '%u2002|%u2003|%u2004|%u2005|%u2006|%u2007|' .
      \ '%u2008|%u2009|%u200A|%u202F|%u205F|%u3000'

    let l:space = '\v\s'

    " Trim end spaces
    :execute l:range 'substitute' '/\v(' . l:unicodeSpaces . '|' . l:space . ')+$//ge'

    " back to origin position
    :normal! `a

  endfunction

Thanks

@mattn
@koron
@thinca
@yaegassy
@m_nish

See also

Vimで全角空白以外のユニコードの空白文字もハイライト&取り除く

Table Unicode space characters( 下記のホームページを参考に作成)

[page11 Table 6-2.Unicode Space Characters]
(http://www.unicode.org/versions/Unicode11.0.0/ch06.pdf)

fileformat.info

Code  Char    Regex   Name
--------------------------------------------------------
[Cf]  U+180E  %u180E  MONGOLIAN VOWEL SEPARATOR
[ZI]  U+2028  %u2028  LINE SEPARATOR
[Zp]  U+2029  %u2029  PARAGRAPH SEPARATOR
[Zs]  U+00A0  %u00A0  NO-BREAK SPACE
[Zs]  U+2000  %u2000  EN QUAD
[Zs]  U+2001  %u2001  EM QUAD
[Zs]  U+2002  %u2002  EN SPACE (nut)
[Zs]  U+2003  %u2003  EM SPACE (mutton)
[Zs]  U+2004  %u2004  THREE-PER-EM SPACEk space)
[Zs]  U+2005  %u2005  FOUR-PER-EM SPACE (space)
[Zs]  U+2006  %u2006  SIX-PER-EM SPACE
[Zs]  U+2007  %u2007  FIGURE SPACE
[Zs]  U+2008  %u2008  PUNCTUATION SPACE
[Zs]  U+2009  %u2009  THIN SPACE
[Zs]  U+200A  %u200A  HAIR SPACE
[Zs]  U+202F  %u202F  NARROW NO-BREAK SPACE
[Zs]  U+205F  %u205F  MEDIUM MATHEMATICAL SPACE
[Zs]  U+3000  %u3000  IDEOGRAPHIC SPACE
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