1" Vim indent file
2" Language:	Haml
3" Maintainer:	Tim Pope <vimNOSPAM@tpope.org>
4" Last Change:	2010 May 21
5
6if exists("b:did_indent")
7  finish
8endif
9runtime! indent/ruby.vim
10unlet! b:did_indent
11let b:did_indent = 1
12
13setlocal autoindent sw=2 et
14setlocal indentexpr=GetHamlIndent()
15setlocal indentkeys=o,O,*<Return>,},],0),!^F,=end,=else,=elsif,=rescue,=ensure,=when
16
17" Only define the function once.
18if exists("*GetHamlIndent")
19  finish
20endif
21
22let s:attributes = '\%({.\{-\}}\|\[.\{-\}\]\)'
23let s:tag = '\%([%.#][[:alnum:]_-]\+\|'.s:attributes.'\)*[<>]*'
24
25if !exists('g:haml_self_closing_tags')
26  let g:haml_self_closing_tags = 'meta|link|img|hr|br'
27endif
28
29function! GetHamlIndent()
30  let lnum = prevnonblank(v:lnum-1)
31  if lnum == 0
32    return 0
33  endif
34  let line = substitute(getline(lnum),'\s\+$','','')
35  let cline = substitute(substitute(getline(v:lnum),'\s\+$','',''),'^\s\+','','')
36  let lastcol = strlen(line)
37  let line = substitute(line,'^\s\+','','')
38  let indent = indent(lnum)
39  let cindent = indent(v:lnum)
40  if cline =~# '\v^-\s*%(elsif|else|when)>'
41    let indent = cindent < indent ? cindent : indent - &sw
42  endif
43  let increase = indent + &sw
44  if indent == indent(lnum)
45    let indent = cindent <= indent ? -1 : increase
46  endif
47
48  let group = synIDattr(synID(lnum,lastcol,1),'name')
49
50  if line =~ '^!!!'
51    return indent
52  elseif line =~ '^/\%(\[[^]]*\]\)\=$'
53    return increase
54  elseif group == 'hamlFilter'
55    return increase
56  elseif line =~ '^'.s:tag.'[&!]\=[=~-]\s*\%(\%(if\|else\|elsif\|unless\|case\|when\|while\|until\|for\|begin\|module\|class\|def\)\>\%(.*\<end\>\)\@!\|.*do\%(\s*|[^|]*|\)\=\s*$\)'
57    return increase
58  elseif line =~ '^'.s:tag.'[&!]\=[=~-].*,\s*$'
59    return increase
60  elseif line == '-#'
61    return increase
62  elseif group =~? '\v^(hamlSelfCloser)$' || line =~? '^%\v%('.g:haml_self_closing_tags.')>'
63    return indent
64  elseif group =~? '\v^%(hamlTag|hamlAttributesDelimiter|hamlObjectDelimiter|hamlClass|hamlId|htmlTagName|htmlSpecialTagName)$'
65    return increase
66  elseif synIDattr(synID(v:lnum,1,1),'name') ==? 'hamlRubyFilter'
67    return GetRubyIndent()
68  else
69    return indent
70  endif
71endfunction
72
73" vim:set sw=2:
74