" Vim syntax file
" Language: Procmail definition file
" Maintainer: Melchior FRANZ <[email protected]>
" Last Change: 2003 Aug 14
" Author: Sonia Heimann

" For version 5.x: Clear all syntax items
" For version 6.x: Quit when a syntax file was already loaded
if version < 600
syntax clear
elseif exists("b:current_syntax")
finish
endif

syn match procmailComment "#.*$" contains=procmailTodo
syn keyword procmailTodo contained Todo TBD

syn region procmailString start=+"+ skip=+\\"+ end=+"+
syn region procmailString start=+'+ skip=+\\'+ end=+'+

syn region procmailVarDeclRegion start="^\s*[a-zA-Z0-9_]\+\s*="hs=e-1 skip=+\\$+ end=+$+ contains=procmailVar,procmailVarDecl,procmailString
syn match procmailVarDecl contained "^\s*[a-zA-Z0-9_]\+"
syn match procmailVar "$[a-zA-Z0-9_]\+"

syn match procmailCondition contained "^\s*\*.*"

syn match procmailActionFolder contained "^\s*[-_a-zA-Z0-9/]\+"
syn match procmailActionVariable contained "^\s*$[a-zA-Z_]\+"
syn region procmailActionForward start=+^\s*!+ skip=+\\$+ end=+$+
syn region procmailActionPipe start=+^\s*|+ skip=+\\$+ end=+$+
syn region procmailActionNested start=+^\s*{+ end=+^\s*}+ contains=procmailRecipe,procmailComment,procmailVarDeclRegion

syn region procmailRecipe start=+^\s*:.*$+ end=+^\s*\($\|}\)+me=e-1 contains=procmailComment,procmailCondition,procmailActionFolder,procmailActionVariable,procmailActionForward,procmailActionPipe,procmailActionNested,procmailVarDeclRegion

" Define the default highlighting.
" For version 5.7 and earlier: only when not done already
" For version 5.8 and later: only when an item doesn't have highlighting yet
if version >= 508 || !exists("did_procmail_syntax_inits")
if version < 508
let did_procmail_syntax_inits = 1
command -nargs=+ HiLink hi link <args>
else
command -nargs=+ HiLink hi def link <args>
endif

HiLink procmailComment Comment
HiLink procmailTodo Todo

HiLink procmailRecipe Statement
"HiLink procmailCondition Statement

HiLink procmailActionFolder procmailAction
HiLink procmailActionVariable procmailAction
HiLink procmailActionForward procmailAction
HiLink procmailActionPipe procmailAction
HiLink procmailAction Function
HiLink procmailVar Identifier
HiLink procmailVarDecl Identifier

HiLink procmailString String

delcommand HiLink
endif

let b:current_syntax = "procmail"

" vim: ts=8