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" 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*$'
return shiftwidth()
endif
" Continuation of a line that was indented
if prevline =~ '\k\+.*\\\s*$'
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 shiftwidth()
endif
" Match inside of a block
if s:IsInBlock(v:lnum)
if prevline =~ "^\k\+.*$"
return shiftwidth()
else
return indent(prevlnum)
endif
endif
return 0
endfunction
let &cpo = s:cpo_save
unlet s:cpo_save
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