Ⅰ. 插件描述
Convenient retrieval of buffer or global script options.Ⅱ. 基本信息
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Ⅲ. 安装方法
使用Vundle管理器安装
在你的.vimrc下添加:Plugin '/getvar-vim':source %
:PluginInstall对于Vundle版本 < 0.10.2，请用上面的Bundle替换Plugin。
使用NeoBundle管理器安装
在你的.vimrc下添加:NeoBundle '/getvar-vim':source %
:NeoBundleInstall使用VimPlug管理器安装
在你的.vimrc下添加:Plug '/getvar-vim':source %
:PlugInstall使用Pathogen管理器安装
在终端中运行以下命令:cd ~/.vim/bundle
git clone https://github.com/vim-scripts/getVar.vimⅣ. 文档说明
These are just a few convenience functions that are useful for retrieval of plugin options that can be set globally as well as having buffer-specific over-rides.
Example: I have a global variable called "g:sortOrder" which is set to "a". In the test.java buffer, I create a buffer variable called "b:sortOrder" which is set to "d". Now, GetVar#GetVar( "sortOrder" ) will return "d" when I'm in test.java and "a" everywhere else. My plugin code doesn't need to actually check for buffer or global variables; I can just call GetVar#GetVar and be done with it.
Why is this useful? It mimics the behaviour of options. For example, :set grepprg? will return the value of 'grepprg'; if a local version has been set (:setlocal grepprg=<something>), it will quietly return that. Otherwise, it will return the global value. GetVar#GetVar allows the same behaviour for variables.
GetVar#GetVar will take an optional second parameter which will be the default value to return if neither a buffer nor a global variable by the specified name is found (the default default :) is -1).
Example: GetVar#GetVar( "userID", "NONE" ) will take either a userID or the string "NONE" if there isn't one. This can be useful where a script should just use an assumed default if the user hasn't specified an override (global or otherwise).
GetVar#VarExists simply returns true if any of the scopes used by GetVar#GetVar exist (in the same order of checking as GetVar#GetVar).