1" Vim indent file
2" Language:     Liquid
3" Maintainer:   Tim Pope <vimNOSPAM@tpope.org>
4" Last Change:	2010 May 21
5
6if exists('b:did_indent')
7  finish
8endif
9
10set indentexpr=
11if exists('b:liquid_subtype')
12  exe 'runtime! indent/'.b:liquid_subtype.'.vim'
13else
14  runtime! indent/html.vim
15endif
16unlet! b:did_indent
17
18if &l:indentexpr == ''
19  if &l:cindent
20    let &l:indentexpr = 'cindent(v:lnum)'
21  else
22    let &l:indentexpr = 'indent(prevnonblank(v:lnum-1))'
23  endif
24endif
25let b:liquid_subtype_indentexpr = &l:indentexpr
26
27let b:did_indent = 1
28
29setlocal indentexpr=GetLiquidIndent()
30setlocal indentkeys=o,O,*<Return>,<>>,{,},0),0],o,O,!^F,=end,=endif,=endunless,=endifchanged,=endcase,=endfor,=endtablerow,=endcapture,=else,=elsif,=when,=empty
31
32" Only define the function once.
33if exists('*GetLiquidIndent')
34  finish
35endif
36
37function! s:count(string,pattern)
38  let string = substitute(a:string,'\C'.a:pattern,"\n",'g')
39  return strlen(substitute(string,"[^\n]",'','g'))
40endfunction
41
42function! GetLiquidIndent(...)
43  if a:0 && a:1 == '.'
44    let v:lnum = line('.')
45  elseif a:0 && a:1 =~ '^\d'
46    let v:lnum = a:1
47  endif
48  let vcol = col('.')
49  call cursor(v:lnum,1)
50  exe "let ind = ".b:liquid_subtype_indentexpr
51  let lnum = prevnonblank(v:lnum-1)
52  let line = getline(lnum)
53  let cline = getline(v:lnum)
54  let line  = substitute(line,'\C^\%(\s*{%\s*end\w*\s*%}\)\+','','')
55  let line .= matchstr(cline,'\C^\%(\s*{%\s*end\w*\s*%}\)\+')
56  let cline = substitute(cline,'\C^\%(\s*{%\s*end\w*\s*%}\)\+','','')
57  let ind += &sw * s:count(line,'{%\s*\%(if\|elsif\|else\|unless\|ifchanged\|case\|when\|for\|tablerow\|capture\)\>')
58  let ind -= &sw * s:count(line,'{%\s*end\%(if\|unless\|ifchanged\|case\|for\|tablerow\|capture\)\>')
59  let ind += &sw * s:count(line,'{%\s*\%(elsif\|else\|when\|empty\)\>')
60  let ind -= &sw * s:count(cline,'{%\s*\%(elsif\|else\|when\|empty\)\>')
61  let ind -= &sw * s:count(cline,'{%\s*end\w*$')
62  return ind
63endfunction
64