1" Vim indent file
2" Language:    Hamster Script 
3" Version:     2.0.6.0
4" Last Change: Wed Nov 08 2006 12:02:42 PM
5" Maintainer:  David Fishburn <fishburn@ianywhere.com>
6
7" Only load this indent file when no other was loaded.
8if exists("b:did_indent")
9  finish
10endif
11let b:did_indent = 1
12
13setlocal indentkeys+==~if,=~else,=~endif,=~endfor,=~endwhile
14setlocal indentkeys+==~do,=~until,=~while,=~repeat,=~for,=~loop
15setlocal indentkeys+==~sub,=~endsub
16
17" Define the appropriate indent function but only once
18setlocal indentexpr=HamGetFreeIndent()
19if exists("*HamGetFreeIndent")
20  finish
21endif
22
23function HamGetIndent(lnum)
24  let ind = indent(a:lnum)
25  let prevline=getline(a:lnum)
26
27  " Add a shiftwidth to statements following if,  else, elseif,
28  " case, select, default, do, until, while, for, start
29  if prevline =~? '^\s*\<\(if\|else\%(if\)\?\|for\|repeat\|do\|while\|sub\)\>' 
30    let ind = ind + &sw
31  endif
32
33  " Subtract a shiftwidth from else, elseif, end(if|while|for), until
34  let line = getline(v:lnum)
35  if line =~? '^\s*\(else\|elseif\|loop\|until\|end\%(if\|while\|for\|sub\)\)\>'
36    let ind = ind - &sw
37  endif
38
39  return ind
40endfunction
41
42function HamGetFreeIndent()
43  " Find the previous non-blank line
44  let lnum = prevnonblank(v:lnum - 1)
45
46  " Use zero indent at the top of the file
47  if lnum == 0
48    return 0
49  endif
50
51  let ind=HamGetIndent(lnum)
52  return ind
53endfunction
54
55" vim:sw=2 tw=80
56