Vim Script

g:var   -全局
a:var   -函数参数
l:var   -函数局部变量
b:var   -buffer 局部变量
w:var   -window 局部变量
t:var   -tab 局部变量
s:var   -当前脚本内可见的局部变量
v:var   -Vim 预定义的内部变量

<string> == <string     :字符串相等
<string> != <string>    :字符串不等
<string> =~ <string>    :匹配 pattern
<string> !~ <string>    :不匹配 pattern
<string> =~# <string>   :匹配大小写 pattern
<string> =~? <string>   :不匹配大小写 pattern

let data = readfile('config')
if writefile(data, 'config')
    echomsg 'write error'
endif
字串转list
let S = '[''123'', ''456'', ''789'']'
let L = eval(S)"

if type(getdata) == 4
  for key in keys(getdata)
    let query[key] = getdata[key]
  endfor
endif

if type(l:foo_list) == v:t_list

for [v1, v2] in [[1,2], [3,4]]
endfor

function! b:RangeSize() range
   echo a:lastline - a:firstline
endfunction

let MyClass = {'foo': 'Foo'}
function MyClass.print() dict
   echo self.foo
endfunction
let = instance = deepcopy(MyClass)
call instance.print()
let instance.foo = 'Bar'
call instance.print()

:help usr_41
:help function-list
:help syn-keyword
:help syn-match
:help iskeyword

取选中的文本
function! s:get_visual_selection()
    let [line_start, column_start] = getpos("'<")[1:2]
    let [line_end, column_end] = getpos("'>")[1:2]
    let lines = getline(line_start, line_end)
    if len(lines) == 0
        return ''
    endif
    let lines[-1] = lines[-1][: column_end - 2]
    let lines[0] = lines[0][column_start - 1:]
    return join(lines, "\n")
endfunction

你运行set filetype=derp，vim会查找~/.vim/ftplugin文件。如果这个文件存在的话，vim就会执行它。
如果derp是文件夹，~/.vim/ftplugin/derp/目录下的所有*.vim文件
设置新文件类型：
au BufNewFile,BufRead *.pn set filetype=potion

设置to和time为关键字，并设置高亮
syntax keyword potionKeyword loop  times to while
syntax keyword potionKeyword if elsif else
syntax keyword potionKeyword class return
highlight link potionKeyword Keyword
高亮函数：
syatax keyword potionFunction print join string
highlight   link  potionFunction Function

定义#为注释部分：
syntax match potionComment "\v#.*$"
highlight link potionComment Comment

正则表达式是以\v开始的，这个是在告诉vim用“very magic”模式

高亮操作符：
syntax match potionOperator "\v\*\="     
     syntax match potionOperator "\v/\="
     syntax match potionOperator "\v\+\="
     syntax match potionOperator "\v-\="
     syntax match potionOperator "\v\*"
     syntax match potionOperator "\v/"
     syntax match potionOperator "\v\+"
     syntax match potionOperator "\v-"
     syntax match potionOperator "\v?"
高亮字符串:
syntax region potionString start=/\v"/ skip=/\v\\./ end=/\v"/
highlight link potionString String

外部命令：
:echo system("ls")
:slient !echo Hello, world.

运行:set ft=potion来重新加载它，然后使用b映射。Vim会在屏幕的底部输出字节码，一旦你确定这段代码能够正常工作，就可以吧echom这一行给删除了。

动加载的文件autoload/myplugin/somefile.vm。并且文件内部的函数的定义需要带上全路径：

function myplugin#somefile#Hello()
    " ...
endfunction

Learn vimscript in Y minutes

:setlocal wrap
:autocmd BufNewFile,BufReadFile *.html :write
:autocmd FileType python nnoremap  c I#
d/return   
function Varg(...)
    echom     a:0
    echom     a:1
    echo     a:000
endfunction
call Varg("a","b")
output: 
a:0 = 2
a:1 = a
a:2 = b
a:000 = list of all arguments

:echo split("one two three")
:echo split("one,two,three",",")
:echo join(["foo","bar"],"...")
:echom tolower("Foo")
:echom toupper("Foo")
:execute "echo 'hello'"
需要用双斜杠来表示单斜杠

function! QuickfixToggle()
     if g:quickfix_is_open:
           cclose
           let g:quick_fix_is_open = 0
     else
           copen
           let g:quick_fix_is_open = 1
     endif
endfunction
相对路径和全局路径
:echom expand('%')
:echom expand('%:p')
:echom fnamemodify('foo.txt',':p')
列出当前目录所有文件
:echo globpath('.','*')
:echo split(globpath('.','*.txt'),'\n')

VIM学习笔记脚本-自定义命令

command! -nargs=1 Dict exec('py youdaoDict(<f-args>)')

-nargs=0    No arguments are allowed (the default)
-nargs=1    Exactly one argument is required
-nargs=*    Any number of arguments are allowed (0, 1, or many)
-nargs=?    0 or 1 arguments are allowed
-nargs=+    Arguments must be supplied, but any number are allowed