" Vim syntax file
" Language:	Procmail definition file
" Maintainer:	Melchior FRANZ <mfranz@aon.at>
" Last Change:	2003 Aug 14
" Author:	Sonia Heimann

" quit when a syntax file was already loaded
if 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.
" Only when an item doesn't have highlighting yet
command -nargs=+ HiLink hi def link <args>

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

let b:current_syntax = "procmail"

" vim: ts=8