summaryrefslogtreecommitdiff
path: root/runtime/indent/hog.vim
blob: 02ac7d4d1b5a4d956877cfb6eba4ae0fe02fabe2 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
" Vim indent file
" Language:     hog (Snort.conf)
" Maintainer:   Victor Roemer, <vroemer@badsec.org>
" Last Change:  Mar 7, 2013

" Only load this indent file when no other was loaded.
if exists("b:did_indent")
    finish
endif
let b:did_indent = 1
let b:undo_indent = 'setlocal smartindent< indentexpr< indentkeys<'

setlocal nosmartindent
setlocal indentexpr=GetHogIndent()
setlocal indentkeys+=!^F,o,O,0#

" Only define the function once.
if exists("*GetHogIndent")
    finish
endif

let s:cpo_save = &cpo
set cpo&vim

let s:syn_blocks = '\<SnortRuleTypeBody\>'

function s:IsInBlock(lnum)
    return synIDattr(synID(a:lnum, 1, 1), 'name') =~ s:syn_blocks 
endfunction

function GetHogIndent()
    let prevlnum = prevnonblank(v:lnum-1)

    " Comment blocks have identical indent
    if getline(v:lnum) =~ '^\s*#' && getline(prevlnum) =~ '^\s*#'
            return indent(prevlnum)
    endif

    " Ignore comment lines when calculating indent
    while getline(prevlnum) =~ '^\s*#'
        let prevlnum = prevnonblank(prevlnum-1)
        if !prevlnum
            return previndent
        endif
    endwhile

    " Continuation of a line that wasn't indented
    let prevline = getline(prevlnum)
    if prevline =~ '^\k\+.*\\\s*$'
        return &sw 
    endif

    " Continuation of a line that was indented
    if prevline =~ '\k\+.*\\\s*$'
        return indent(prevlnum)
    endif

    " Indent the next line if previous line contained a start of a block
    " definition ('{' or '(').
    if prevline =~ '^\k\+[^#]*{}\@!\s*$' " TODO || prevline =~ '^\k\+[^#]*()\@!\s*$'
        return &sw
    endif

    " Match inside of a block
    if s:IsInBlock(v:lnum)
        if prevline =~ "^\k\+.*$"
            return &sw
        else
            return indent(prevlnum)
        endif
    endif

    return 0 
endfunction

let &cpo = s:cpo_save
unlet s:cpo_save