newline - vim 注释换行意外行为

Question

在使用 vim 时，当我以//开始注释时，在我输入一个空格后，它会立即开始一个新的注释行。

例如，如果我输入以下内容:

//hello world my name is stefan

我会得到:

//hello
//world
//my
//name
//is
//stefan

这种行为也体现在 python 代码中，如果我以 print 开始一行，每个空格都会被解释为一个换行符

print "Hello world my name is Stefan"

是

print
"hello
world
my
name
is
stefan"

这是预期的行为还是我的设置搞砸了？以下是我的 .vimrc:

" An example for a vimrc file.
"
" Maintainer:   Bram Moolenaar <email address>
" Last change:  2006 Nov 16
"
" To use it, copy it to
"     for Unix and OS/2:  ~/.vimrc
"         for Amiga:  s:.vimrc
"  for MS-DOS and Win32:  $VIM\_vimrc
"       for OpenVMS:  sys$login:.vimrc

" When started as "evim", evim.vim will already have done these settings.
if v:progname =~? "evim"
  finish
endif

" TagList plugin settings
nmap <f12> :TlistToggle<end>

" Use Vim settings, rather then Vi settings (much better!).
" This must be first, because it changes other options as a side effect.
set nocompatible

" allow backspacing over everything in insert mode
set backspace=indent,eol,start

set nobackup        " do not keep a backup file, use versions instead
set history=50      " keep 50 lines of command line history
set ruler       " show the cursor position all the time
set showcmd     " display incomplete commands
set incsearch       " do incremental searching

" For Win32 GUI: remove 't' flag from 'guioptions': no tearoff menu entries
" let &guioptions = substitute(&guioptions, "t", "", "g")

" Don't use Ex mode, use Q for formatting
map Q gq

" In many terminal emulators the mouse works just fine, thus enable it.
" set mouse=a

" Switch syntax highlighting on, when the terminal has colors
" Also switch on highlighting the last used search pattern.
if &t_Co > 2 || has("gui_running")
  syntax on
  set hlsearch
endif

" Only do this part when compiled with support for autocommands.
if has("autocmd")

  " Enable file type detection.
  " Use the default filetype settings, so that mail gets 'tw' set to 72,
  " 'cindent' is on in C files, etc.
  " Also load indent files, to automatically do language-dependent indenting.
  filetype plugin indent on

  " Put these in an autocmd group, so that we can delete them easily.
  augroup vimrcEx
  au!

  " For all text files set 'textwidth' to 78 characters.
  autocmd FileType text setlocal textwidth=78

  " When editing a file, always jump to the last known cursor position.
  " Don't do it when the position is invalid or when inside an event handler
  " (happens when dropping a file on gvim).
  autocmd BufReadPost *
    \ if line("'\"") > 0 && line("'\"") <= line("$") |
    \   exe "normal! g`\"" |
    \ endif

  augroup END

else

  set autoindent        " always set autoindenting on

endif " has("autocmd")

set   backupdir=./.backup,.,/tmp
set   directory=.,./.backup,/tmp

map <F1> :NERDTree <CR>
map <F2> :q!<CR>:q!<CR>:q!<CR>:q!<CR>:q!<CR>:q!<CR>:q!<CR>:q!<CR>:q!<CR>:q!<CR>:q!<CR>:q!<CR>:q!<CR>:q!<CR>:q!<CR>:q!<CR>:q!<CR>:q!<CR>
map <F5> :AV<CR>
map <F6> :AS<CR>
map <F7> :IHV<CR>
map <F8> :IHS<CR>

Answer 1

我的猜测是您混淆了“tw”(又名文本宽度)和旧的 vi 命令来设置文本边距“wm”。 “tw”设置页面的实际宽度(即 tw=77 表示每行需要 77 个字母)但是“wm”设置从屏幕边缘到换行的距离，因此在 80 列屏幕上“wm= 3"与 "tw=77"具有相同的效果。因此，如果您的 tw 设置为非常小的值，它会尝试在每个单词后换行。