问题：vim下怎样在php文件中通过 = 命令自动缩排html代码？
解决：
1、先说下html自动缩排
我的vim是7.4版本，已经包含了html.vim之类的缩排插件，但是缩排的时候<body> <head> 没有进行缩排
在.vimrc中加入如下代码即可对 <body> <head> 也进行缩排
" html indent
filetype indent on
let g:html_indent_inctags = "body,head,tbody" " 缩进body head
" let g:html_indent_script1 = "inc" " 缩进<script>标签
" let g:html_indent_style1 = "inc" " 缩进<style>标签
2、解决php文件中html代码缩进
创建 ~/.vim/indent/php.vim 文件，如果没有indent目录，就先创建indent目录
然后在 php.vim 文件中粘贴如下代码并保存
" Better indent support for PHP by making it possible to indent HTML sections
" as well.
if exists("b:did_indent")
finish
endif
" This script pulls in the default indent/php.vim with the :runtime command
" which could re-run this script recursively unless we catch that:
if exists('s:doing_indent_inits')
finish
endif
let s:doing_indent_inits = 1
runtime! indent/html.vim
unlet b:did_indent
runtime! indent/php.vim
unlet s:doing_indent_inits
function! GetPhpHtmlIndent(lnum)
if exists('*HtmlIndent')
let html_ind = HtmlIndent()
else
let html_ind = HtmlIndentGet(a:lnum)
endif
let php_ind = GetPhpIndent()
" priority one for php indent script
if php_ind > -1
return php_ind
endif
if html_ind > -1
if getline(a:num) =~ "^<?" && (0< searchpair('<?', '', '?>', 'nWb')
\ || 0 < searchpair('<?', '', '?>', 'nW'))
return -1
endif
return html_ind
endif
return -1
endfunction
setlocal indentexpr=GetPhpHtmlIndent(v:lnum)
setlocal indentkeys+=<>>
3、在 .vimrc 中还需要添加 filetype indent on 打开根据文件类型自动缩进
在vim命令模式下中输入 gg=G 即可完成自动缩排
参考：
http://www.vim.org/scripts/script.php?script_id=2075
http://blog.longwin.com.tw/2009/01/vim-indent-for-php-html-2009/
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