【发布时间】：2015-02-17 18:10:13
【问题描述】：
我正在尝试将 vim 中的 columns 变量设置为 80。如果我在 .vimrc 中设置它，似乎没有任何变化。我在 Ubuntu 14.04 上使用 gVim 7.4。
在我的 cpp 文件中，现有的长行不会更改为在 80 列标记处换行。如果我开始输入一个新的长行，它将不会在 80 处换行。如果我在使用 :set columns=80 打开文件时设置列，则长行会在 80 列处换行，但几秒钟后换行就会消失就像我从来没有设置列一样。
当我输入 git commit 消息时，columns 变量确实有效。它只是在源文件中不起作用。
下面是我的 .vimrc 文件。那里有什么东西在重置列吗？我试图禁用我的插件，但这似乎没有帮助。
" Allows Vim-related packages in Debian to work
runtime! debian.vim
" **********************************************************
" Everything in this ******* section is *required* for vundle for work properly
" debian.vim sets 'nocompatible'. Setting 'compatible' changes numerous
" options, so any other options should be set AFTER explicitly setting 'compatible'.
" Set nocompatible for everything to enforce this
set nocompatible
filetype off
" Set runtime path to include vundle
set rtp+=~/.vim/bundle/vundle/
call vundle#rc()
" let Vundle manage Vundle, required
Plugin 'gmarik/vundle'
" Install youcompleteme
Plugin 'Valloric/youcompleteme'
" Install NERDTree
Plugin 'scrooloose/nerdtree'
" Install xmledit
Plugin 'sukima/xmledit'
" Haskell
Plugin 'dag/vim2hs'
" detect file type
filetype plugin indent on
" **********************************************************
" Set highlighting for syntax
syntax on
" Set colorscheme
colorscheme elflord
" When we split a window, make sure we can write to that file
set noreadonly
" If using a dark background within the editing area and syntax highlighting
set background=dark
" Make the finding feature not worry about case until you use capital letter
set ignorecase
set smartcase
" Makes the lines auto indent
set smartindent
" Makes tab key use spaces instead of literal tabs
set expandtab
" Sets how many columns a tab counts for
set tabstop=2
" Makes all existing tab characters match current settings
retab
"Sets how many characters are used for indentation
set shiftwidth=2
"Makes backspace delete over line-breaks, automatically inserted indents, etc
set backspace=2
" Enables mouse use when you press 'a'
set mouse=a
" Show line numbers
set number
" Sets the number of commands to remember
set history=50
" Sets the status line to always be present
set laststatus=2
" Enables incremental searching
set incsearch
" Sets the amount of lines to have above or below the cursor at all times
set scrolloff=2
" Set the number of text columns to use before wrapping line
set columns=80
" Options for auto completion
set completeopt=menuone,menu,longest,preview
" ================= Configure Taglist ================= "
" Lets the tag list plugin use ctags
let Tlist_Ctags_Cmd = "/usr/bin/ctags"
" Make Taglist split the window horizontally
let Tlist_Use_Horiz_Window = 1
" Set the Tlist window height to be half of the overall window height
" This lets the NERDTree and Taglist share half of the vsplit window space
" To make the Taglist window be half of the split size, you must also change
" taglist.vim in if block: "if g:Tlist_Use_Horiz_Window" (~ line 1350),
" change let win_dir = 'botright' to let win_dir = 'rightb'.
" 'botright' will make it take over the bottom of the entire vim window
let Tlist_WinHeight = winheight(0) / 2
let Tlist_WinWidth = winwidth(0) / 2
" ================= Configure YouCompleteMe =================
let g:ycm_min_num_of_chars_for_completion = 2
let g:ycm_global_ycm_extra_conf = '~/.ycm_extra_conf.py'
" This represses the confirmation of loading a .ycm_extra_conf file.
" It should probably be left alone, but it is annoying to always confirm when
" working on my own projects everyday.
let g:ycm_confirm_extra_conf = 0
" This closes the preview window that appears after you have selected a
" completion option
let g:ycm_autoclose_preview_window_after_completion = 1
let g:ycm_autoclose_preview_window_after_insertion = 1
" ================= Key Bindings ================= "
" Build tags for current directory with Ctrl-F12
map <C-F12> :!ctags -R --sort=yes --c++-kinds=+pl --fields=+iaS --extra=+q .<CR>
" Create a command to toggle NERDTree and TlistToggle at the same time
com TT NERDTreeToggle | TlistToggle
" Map a key to the TT command
noremap <F6> :TT<cr>
" ============ Colemak remappings ============ "
function! SetColemakRemaps()
" Remap the scrolling keys for colemak
noremap n j|noremap e k|noremap i l
noremap gn gj|noremap ge gk
" Remap undo key
" l to u
noremap l u|noremap L U
" Remap yank and paste keys
" j to y
noremap j y|noremap J Y
" Remap insert keys
" u to i
" y to o
noremap u i|noremap U I
noremap y o|noremap Y O
" Remap next key for search
" k to n
noremap k n|noremap K N
endfunction
" ========================================= "
" ============ Norman remappings ============ "
function! SetNormanRemaps()
" Remap the scrolling keys for norman
noremap n j|noremap i k|noremap o l|noremap y h
noremap gn gj|noremap gi go
" Remap insert keys
" r to i
" l to o
noremap r i|noremap R I
noremap l o|noremap L O
" Remap yank and paste keys
" j to y
" f to p (this is different from conventional
" paste location because ; is in p's location)
" f (r in qwerty) is p in Colemak so I'm used to that mapping
noremap j y|noremap J Y
noremap f p|noremap F P
" Remap next key for search
" p to n
noremap p n|noremap P N
endfunction
" ========================================= "
" Set key remaps based on which keyboard layout
" is in use - works only for Colemak and Norman layouts
" Relies on 'check_kb_layout.sh' script
function! SetLayoutRemaps()
call system('. ~/check_kb_layout.sh')
if v:shell_error == 1
call SetNormanRemaps()
elseif v:shell_error == 2
call SetColemakRemaps()
endif
endfunction
" ========================================= "
" Call the remap function
call SetLayoutRemaps()
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