/usr/share/vim/vim80/syntax/sieve.vim is in vim-runtime 2:8.0.1453-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 | " Vim syntax file
" Language: Sieve filtering language input file
" Previous Maintainer: Nikolai Weibull <now@bitwi.se>
" Latest Revision: 2007-10-25
if exists("b:current_syntax")
finish
endif
let s:cpo_save = &cpo
set cpo&vim
syn keyword sieveTodo contained TODO FIXME XXX NOTE
syn region sieveComment start='/\*' end='\*/' contains=sieveTodo,@Spell
syn region sieveComment display oneline start='#' end='$'
\ contains=sieveTodo,@Spell
syn case ignore
syn match sieveTag display ':\h\w*'
syn match sieveNumber display '\<\d\+[KMG]\=\>'
syn match sieveSpecial display '\\["\\]'
syn region sieveString start=+"+ skip=+\\\\\|\\"+ end=+"+
\ contains=sieveSpecial
syn region sieveString start='text:' end='\n.\n'
syn keyword sieveConditional if elsif else
syn keyword sieveTest address allof anyof envelope exists false header
\ not size true
syn keyword sievePreProc require stop
syn keyword sieveAction reject fileinto redirect keep discard
syn keyword sieveKeyword vacation
syn case match
hi def link sieveTodo Todo
hi def link sieveComment Comment
hi def link sieveTag Type
hi def link sieveNumber Number
hi def link sieveSpecial Special
hi def link sieveString String
hi def link sieveConditional Conditional
hi def link sieveTest Keyword
hi def link sievePreProc PreProc
hi def link sieveAction Function
hi def link sieveKeyword Keyword
let b:current_syntax = "sieve"
let &cpo = s:cpo_save
unlet s:cpo_save
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