StylizeLine

stylizeline.vim

" smartchr 的な動作は改行時にまとめてやれば済むでしょ、と思って簡単に作ってみた。
" どうも実用的にできなかったのでgistに晒して終わりにする。

function! StylizeLine(modifyBuffer)
    let l:line = getline(".")

    " Skip if comment line or preprocessor directive.
    if (match(l:line, "^\\s*#") != -1) || (match(l:line, "^\\s*\/\/") != -1)
	return l:line
    endif

    " single spaces before and after =+/|%
    let l:line = substitute(l:line, "\\s*\\([=+/|%]\\)\\s*", " \\1 ", "g")

    " single space before -!~
    let l:line = substitute(l:line, "\\s*\\([-!~]\\)", " \\1", "g")

    " increment, and, or, equal, not equal
    let l:line = substitute(l:line, "+\\s*+", "++", "g")
    let l:line = substitute(l:line, "&\\s*&", "&&", "g")
    let l:line = substitute(l:line, "|\\s*|", "||", "g")
    let l:line = substitute(l:line, "=\\s*=", "==", "g")
    let l:line = substitute(l:line, "!\\s*=", "!=", "g")

    " if, for, while
    let l:line = substitute(l:line, "^\\s*\zsif\\s*(", "if (", "g")
    let l:line = substitute(l:line, "^\\s*\zsfor\\s*(", "for (", "g")
    let l:line = substitute(l:line, "^\\s*\zswhile\\s*(", "while (", "g")

    " += etc.
    let l:line = substitute(l:line, "\\s*\\([-!~=+*/&|<>%]\\)\\s*=\\s*", " \\1= ", "g")

    " semicolon and comma
    let l:line = substitute(l:line, "\\s*\\([;,]\\)\\s*", "\\1 ", "g")

    " spaces at EOL
    let l:line = substitute(l:line, "\\s\\+$", "", "")

    if a:modifyBuffer != 0
	call setline(".", l:line)
    endif
    return l:line
endfunction

" キーマップ例 (keymap suggestions)
noremap <M-s> :call StylizeLine(1)<CR>
inoremap <silent> <CR> <ESC>:call StylizeLine(1)<CR>o
inoremap <silent> <M-s> <ESC>:call StylizeLine(1)<CR>A

いろいろ改良→ https://gist.github.com/1300624