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" Vim indent file
" Language: Jinja HTML template
" Maintainer: Evan Hammer <evan@evanhammer.com>
" Last Change: 2013 Jan 26
" Only load this indent file when no other was loaded.
if exists("b:did_indent")
finish
endif
" Use HTML formatting rules.
setl indentkeys=o,O,<Return>,<>>,!^F
runtime! indent/html.vim +setl nosmartindent
let b:did_indent = 1
" Indent within the jinja tags
" Made by Steve Losh <steve@stevelosh.com>
if &l:indentexpr == ''
if &l:cindent
let &l:indentexpr = 'cindent(v:lnum)'
else
let &l:indentexpr = 'indent(prevnonblank(v:lnum-1))'
endif
endif
let b:html_indentexpr = &l:indentexpr
let b:did_indent = 1
setlocal indentexpr=GetDjangoIndent()
setlocal indentkeys=o,O,*<Return>,{,},o,O,!^F,<>>
" Only define the function once.
if exists("*GetDjangoIndent")
finish
endif
function! GetDjangoIndent(...)
if a:0 && a:1 == '.'
let v:lnum = line('.')
elseif a:0 && a:1 =~ '^\d'
let v:lnum = a:1
endif
let vcol = col('.')
call cursor(v:lnum,vcol)
exe "let ind = ".b:html_indentexpr
let lnum = prevnonblank(v:lnum-1)
let pnb = getline(lnum)
let cur = getline(v:lnum)
let tagstart = '.*' . '{%\s*'
let tagend = '.*%}' . '.*'
let blocktags = '\(block\|for\|if\|with\|autoescape\|comment\|filter\|spaceless\)'
let midtags = '\(empty\|else\|elif\)'
let pnb_blockstart = pnb =~# tagstart . blocktags . tagend
let pnb_blockend = pnb =~# tagstart . 'end' . blocktags . tagend
let pnb_blockmid = pnb =~# tagstart . midtags . tagend
let cur_blockstart = cur =~# tagstart . blocktags . tagend
let cur_blockend = cur =~# tagstart . 'end' . blocktags . tagend
let cur_blockmid = cur =~# tagstart . midtags . tagend
if pnb_blockstart && !pnb_blockend
let ind = ind + &sw
elseif pnb_blockmid && !pnb_blockend
let ind = ind + &sw
endif
if cur_blockend && !cur_blockstart
let ind = ind - &sw
elseif cur_blockmid
let ind = ind - &sw
endif
return ind
endfunction
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