diff --git a/runtime/syntax/bindzone.vim b/runtime/syntax/bindzone.vim
index 3c23e21..9facdbe 100644
--- a/runtime/syntax/bindzone.vim
+++ b/runtime/syntax/bindzone.vim
@@ -1,9 +1,12 @@
 " Vim syntax file
-" Language:	BIND 8.x zone files (RFC1035)
-" Maintainer:	glory hump <rnd@web-drive.ru>
-" Last change:	Thu Apr 26 02:16:18 SAMST 2001
-" Filenames:	/var/named/*
-" URL:	http://rnd.web-drive.ru/vim/syntax/bindzone.vim
+" Language:     BIND zone files (RFC1035)
+" Maintainer:   Julian Mehnle <julian@mehnle.net>
+" URL:          http://www.mehnle.net/source/odds+ends/vim/syntax/
+" Last Change:  Thu 2006-04-20 12:30:45 UTC
+" 
+" Based on an earlier version by Вячеслав Горбанев (Slava Gorbanev), with
+" heavy modifications.
+" 
 " $Id$
 
 " For version 5.x: Clear all syntax items
@@ -16,54 +19,55 @@
 
 syn case match
 
-if version >= 600
-  setlocal iskeyword=.,-,48-58,A-Z,a-z,_
-else
-  set iskeyword=.,-,48-58,A-Z,a-z,_
-endif
+" Directives
+syn region      zoneRRecord     start=/^/ end=/$/ contains=zoneOwnerName,zoneSpecial,zoneTTL,zoneClass,zoneRRType,zoneComment,zoneUnknown
 
+syn match       zoneDirective   /^\$ORIGIN\s\+/   nextgroup=zoneOrigin,zoneUnknown
+syn match       zoneDirective   /^\$TTL\s\+/      nextgroup=zoneNumber,zoneUnknown
+syn match       zoneDirective   /^\$INCLUDE\s\+/  nextgroup=zoneText,zoneUnknown
+syn match       zoneDirective   /^\$GENERATE\s/
 
-" Master File Format (rfc 1035)
+syn match       zoneUnknown     contained /\S\+/
 
-" directives
-syn region	zoneRRecord	start=+^+ end=+$+ contains=zoneLHSDomain,zoneLHSIP,zoneIllegalDom,zoneWhitespace,zoneComment,zoneParen,zoneSpecial
-syn match	zoneDirective	/\$ORIGIN\s\+/ nextgroup=zoneDomain,zoneIllegalDom
-syn match	zoneDirective	/\$TTL\s\+/ nextgroup=zoneTTL
-syn match	zoneDirective	/\$INCLUDE\s\+/
-syn match	zoneDirective	/\$GENERATE\s/
+syn match       zoneOwnerName   contained /^[^[:space:]!"#$%&'()*+,\/:;<=>?@[\]\^`{|}~]\+\(\s\|;\)\@=/ nextgroup=zoneTTL,zoneClass,zoneRRType skipwhite
+syn match       zoneOrigin      contained  /[^[:space:]!"#$%&'()*+,\/:;<=>?@[\]\^`{|}~]\+\(\s\|;\|$\)\@=/
+syn match       zoneDomain      contained  /[^[:space:]!"#$%&'()*+,\/:;<=>?@[\]\^`{|}~]\+\(\s\|;\|$\)\@=/
 
-syn match	zoneWhitespace	contained /^\s\+/ nextgroup=zoneTTL,zoneClass,zoneRRType
-syn match	zoneError	"\s\+$"
-syn match	zoneSpecial	contained /^[@.]\s\+/ nextgroup=zoneTTL,zoneClass,zoneRRType
-syn match	zoneSpecial	contained /@$/
+syn match       zoneSpecial     contained /^[@*.]\s/
+syn match       zoneTTL         contained /\<\d[0-9HhWwDd]*\>/  nextgroup=zoneClass,zoneRRType skipwhite
+syn keyword     zoneClass       contained IN CHAOS              nextgroup=zoneRRType,zoneTTL   skipwhite
+syn keyword     zoneRRType      contained A AAAA CNAME HINFO MX NS PTR SOA SRV TXT nextgroup=zoneRData skipwhite
+syn match       zoneRData       contained /[^;]*/ contains=zoneDomain,zoneIPAddr,zoneIP6Addr,zoneText,zoneNumber,zoneParen,zoneUnknown
 
-" domains and IPs
-syn match	zoneLHSDomain	contained /^[-0-9A-Za-z.]\+\s\+/ nextgroup=zoneTTL,zoneClass,zoneRRType
-syn match	zoneLHSIP	contained /^[0-9]\{1,3}\(\.[0-9]\{1,3}\)\{,3}\s\+/ nextgroup=zoneTTL,zoneClass,zoneRRType
-syn match	zoneIPaddr	contained /\<[0-9]\{1,3}\(\.[0-9]\{1,3}\)\{,3}\>/
-syn match	zoneDomain	contained /\<[0-9A-Za-z][-0-9A-Za-z.]\+\>/
+syn match       zoneIPAddr      contained /\<[0-9]\{1,3}\(\.[0-9]\{1,3}\)\{,3}\>/
 
-syn match	zoneIllegalDom	contained /\S*[^-A-Za-z0-9.[:space:]]\S*\>/
-"syn match	zoneIllegalDom	contained /[0-9]\S*[-A-Za-z]\S*/
+"   Plain IPv6 address          IPv6-embedded-IPv4 address
+"   1111:2:3:4:5:6:7:8          1111:2:3:4:5:6:127.0.0.1
+syn match       zoneIP6Addr     contained /\<\(\x\{1,4}:\)\{6}\(\x\{1,4}:\x\{1,4}\|\([0-2]\?\d\{1,2}\.\)\{3}[0-2]\?\d\{1,2}\)\>/
+"   ::[...:]8                   ::[...:]127.0.0.1
+syn match       zoneIP6Addr     contained /\s\@<=::\(\(\x\{1,4}:\)\{,6}\x\{1,4}\|\(\x\{1,4}:\)\{,5}\([0-2]\?\d\{1,2}\.\)\{3}[0-2]\?\d\{1,2}\)\>/
+"   1111::[...:]8               1111::[...:]127.0.0.1
+syn match       zoneIP6Addr     contained /\<\(\x\{1,4}:\)\{1}:\(\(\x\{1,4}:\)\{,5}\x\{1,4}\|\(\x\{1,4}:\)\{,4}\([0-2]\?\d\{1,2}\.\)\{3}[0-2]\?\d\{1,2}\)\>/
+"   1111:2::[...:]8             1111:2::[...:]127.0.0.1
+syn match       zoneIP6Addr     contained /\<\(\x\{1,4}:\)\{2}:\(\(\x\{1,4}:\)\{,4}\x\{1,4}\|\(\x\{1,4}:\)\{,3}\([0-2]\?\d\{1,2}\.\)\{3}[0-2]\?\d\{1,2}\)\>/
+"   1111:2:3::[...:]8           1111:2:3::[...:]127.0.0.1
+syn match       zoneIP6Addr     contained /\<\(\x\{1,4}:\)\{3}:\(\(\x\{1,4}:\)\{,3}\x\{1,4}\|\(\x\{1,4}:\)\{,2}\([0-2]\?\d\{1,2}\.\)\{3}[0-2]\?\d\{1,2}\)\>/
+"   1111:2:3:4::[...:]8         1111:2:3:4::[...:]127.0.0.1
+syn match       zoneIP6Addr     contained /\<\(\x\{1,4}:\)\{4}:\(\(\x\{1,4}:\)\{,2}\x\{1,4}\|\(\x\{1,4}:\)\{,1}\([0-2]\?\d\{1,2}\.\)\{3}[0-2]\?\d\{1,2}\)\>/
+"   1111:2:3:4:5::[...:]8       1111:2:3:4:5::127.0.0.1
+syn match       zoneIP6Addr     contained /\<\(\x\{1,4}:\)\{5}:\(\(\x\{1,4}:\)\{,1}\x\{1,4}\|\([0-2]\?\d\{1,2}\.\)\{3}[0-2]\?\d\{1,2}\)\>/
+"   1111:2:3:4:5:6::8           -
+syn match       zoneIP6Addr     contained /\<\(\x\{1,4}:\)\{6}:\x\{1,4}\>/
+"   1111[:...]::                -
+syn match       zoneIP6Addr     contained /\<\(\x\{1,4}:\)\{1,7}:\(\s\|;\|$\)\@=/
 
-" keywords
-syn keyword	zoneClass	IN CHAOS nextgroup=zoneRRType
+syn match       zoneText        contained /"\([^"\\]\|\\.\)*"\(\s\|;\|$\)\@=/
+syn match       zoneNumber      contained /\<[0-9]\+\(\s\|;\|$\)\@=/
+syn match       zoneSerial      contained /\<[0-9]\{9,10}\(\s\|;\|$\)\@=/
 
-syn match	zoneTTL	contained /\<[0-9HhWwDd]\+\s\+/ nextgroup=zoneClass,zoneRRType
-syn match	zoneRRType	contained /\s*\<\(NS\|HINFO\)\s\+/ nextgroup=zoneSpecial,zoneDomain
-syn match	zoneRRType	contained /\s*\<CNAME\s\+/ nextgroup=zoneDomain,zoneSpecial
-syn match	zoneRRType	contained /\s*\<SOA\s\+/ nextgroup=zoneDomain,zoneIllegalDom
-syn match	zoneRRType	contained /\s*\<PTR\s\+/ nextgroup=zoneDomain,zoneIllegalDom
-syn match	zoneRRType	contained /\s*\<MX\s\+/ nextgroup=zoneMailPrio
-syn match	zoneRRType	contained /\s*\<A\s\+/ nextgroup=zoneIPaddr,zoneIllegalDom
-
-" FIXME: catchup serial number
-syn match	zoneSerial	contained /\<[0-9]\{9}\>/
-
-syn match	zoneMailPrio	contained /\<[0-9]\+\s*/ nextgroup=zoneDomain,zoneIllegalDom
-syn match	zoneErrParen	/)/
-syn region	zoneParen	contained start=+(+ end=+)+ contains=zoneSerial,zoneTTL,zoneComment
-syn match	zoneComment	";.*"
+syn match       zoneErrParen    /)/
+syn region      zoneParen       contained start="(" end=")" contains=zoneSerial,zoneNumber,zoneComment
+syn match       zoneComment     /;.*/
 
 " Define the default highlighting.
 " For version 5.7 and earlier: only when not done already
@@ -76,23 +80,31 @@
     command -nargs=+ HiLink hi def link <args>
   endif
 
-  HiLink zoneComment	Comment
-  HiLink zoneDirective	Macro
-  HiLink zoneLHSDomain	Statement
-  HiLink zoneLHSIP	Statement
-  HiLink zoneClass	Include
-  HiLink zoneSpecial	Special
-  HiLink zoneRRType	Type
-  HiLink zoneError	Error
-  HiLink zoneErrParen	Error
-  HiLink zoneIllegalDom	Error
-  HiLink zoneSerial	Todo
-  HiLink zoneIPaddr	Number
-  HiLink zoneDomain	Identifier
+  HiLink zoneDirective    Macro
+  
+  HiLink zoneUnknown      Error
+  
+  HiLink zoneOrigin       Statement
+  HiLink zoneOwnerName    Statement
+  HiLink zoneDomain       Identifier
+  
+  HiLink zoneSpecial      Special
+  HiLink zoneTTL          Constant
+  HiLink zoneClass        Include
+  HiLink zoneRRType       Type
+  
+  HiLink zoneIPAddr       Number
+  HiLink zoneIP6Addr      Number
+  HiLink zoneText         String
+  HiLink zoneNumber       Number
+  HiLink zoneSerial       Special
+  
+  HiLink zoneErrParen     Error
+  HiLink zoneComment      Comment
 
   delcommand HiLink
 endif
 
 let b:current_syntax = "bindzone"
 
-" vim: ts=17
+" vim:sts=2 sw=2
diff --git a/runtime/syntax/crontab.vim b/runtime/syntax/crontab.vim
index 372478c..117f98d 100644
--- a/runtime/syntax/crontab.vim
+++ b/runtime/syntax/crontab.vim
@@ -1,10 +1,12 @@
 " Vim syntax file
-" Language:	crontab
-" Maintainer:	John Hoelzel johnh51@users.sourceforge.net
-" Maintainer:	David Necas (Yeti) <yeti@physics.muni.cz>
-" Last Change:	2005-04-26
-" Filenames:	/tmp/crontab.* used by "crontab -e"
-" URL:		http://trific.ath.cx/Ftp/vim/syntax/crontab.vim
+" Language: crontab
+" Maintainer: David Necas (Yeti) <yeti@physics.muni.cz>
+" Original Maintainer: John Hoelzel johnh51@users.sourceforge.net
+" License: This file can be redistribued and/or modified under the same terms
+"   as Vim itself.
+" Filenames: /tmp/crontab.* used by "crontab -e"
+" URL: http://trific.ath.cx/Ftp/vim/syntax/crontab.vim
+" Last Change: 2006-04-20
 "
 " crontab line format:
 " Minutes   Hours   Days   Months   Days_of_Week   Commands # comments
@@ -17,24 +19,23 @@
   finish
 endif
 
-syntax match  crontabMin     "^\s*[-0-9/,.*]\+"  nextgroup=crontabHr   skipwhite
-syntax match  crontabHr       "\s[-0-9/,.*]\+"  nextgroup=crontabDay  skipwhite contained
-syntax match  crontabDay      "\s[-0-9/,.*]\+"  nextgroup=crontabMnth skipwhite contained
+syntax match crontabMin "^\s*[-0-9/,.*]\+" nextgroup=crontabHr skipwhite
+syntax match crontabHr "\s[-0-9/,.*]\+" nextgroup=crontabDay skipwhite contained
+syntax match crontabDay "\s[-0-9/,.*]\+" nextgroup=crontabMnth skipwhite contained
 
-syntax match  crontabMnth  "\s[-a-z0-9/,.*]\+"  nextgroup=crontabDow  skipwhite contained
-syntax keyword crontabMnth12 contained   jan feb mar apr may jun jul aug sep oct nov dec
+syntax match crontabMnth "\s[-a-z0-9/,.*]\+" nextgroup=crontabDow skipwhite contained
+syntax keyword crontabMnth12 contained jan feb mar apr may jun jul aug sep oct nov dec
 
-syntax match  crontabDow   "\s[-a-z0-9/,.*]\+"  nextgroup=crontabCmd  skipwhite contained
-syntax keyword crontabDow7   contained    sun mon tue wed thu fri sat
+syntax match crontabDow "\s[-a-z0-9/,.*]\+" nextgroup=crontabCmd skipwhite contained
+syntax keyword crontabDow7 contained sun mon tue wed thu fri sat
 
-"  syntax region crontabCmd  start="\<[a-z0-9\/\(]" end="$" nextgroup=crontabCmnt skipwhite contained contains=crontabCmnt keepend
+syntax region crontabCmd start="\S" end="$" skipwhite contained keepend contains=crontabPercent
+syntax match crontabCmnt "^\s*#.*"
+syntax match crontabPercent "[^\\]%.*"lc=1 contained
 
-syntax region crontabCmd  start="\S" end="$" nextgroup=crontabCmnt skipwhite contained keepend
-syntax match  crontabCmnt "^\s*#.*"
+syntax match crontabNick "^\s*@\(reboot\|yearly\|annually\|monthly\|weekly\|daily\|midnight\|hourly\)\>" nextgroup=crontabCmd skipwhite
 
-syntax match  crontabNick  "^\s*@\(reboot\|yearly\|annually\|monthly\|weekly\|daily\|midnight\|hourly\)\>" nextgroup=crontabCmd skipwhite
-
-syntax match  crontabVar  "^\s*\k\w*\s*="me=e-1
+syntax match crontabVar "^\s*\k\w*\s*="me=e-1
 
 " Define the default highlighting.
 " For version 5.7 and earlier: only when not done already
@@ -63,9 +64,10 @@
 
   HiLink crontabNick		Special
   HiLink crontabVar		Identifier
+  HiLink crontabPercent		Special
 
 " comment out next line for to suppress unix commands coloring.
-  HiLink crontabCmd		Type
+  HiLink crontabCmd		Statement
 
   HiLink crontabCmnt		Comment
 
diff --git a/runtime/syntax/inform.vim b/runtime/syntax/inform.vim
index 1190163..d8ba43d 100644
--- a/runtime/syntax/inform.vim
+++ b/runtime/syntax/inform.vim
@@ -1,8 +1,8 @@
 " Vim syntax file
 " Language:     Inform
-" Maintainer:   Stephen Thomas (informvim@stephenthomas.uklinux.net)
-" URL:		http://www.stephenthomas.uklinux.net/informvim
-" Last Change:  2004 May 16
+" Maintainer:   Stephen Thomas (stephen@gowarthomas.com)
+" URL:		http://www.gowarthomas.com/informvim
+" Last Change:  2006 April 20
 
 " Quit when a syntax file was already loaded
 if version < 600
diff --git a/runtime/syntax/lua.vim b/runtime/syntax/lua.vim
index fe97712..7d72603 100644
--- a/runtime/syntax/lua.vim
+++ b/runtime/syntax/lua.vim
@@ -1,297 +1,299 @@
-" Vim syntax file
-" Language:	Lua 4.0, Lua 5.0 and Lua 5.1
-" Maintainer:	Marcus Aurelius Farias <marcus.cf 'at' bol.com.br>
-" First Author:	Carlos Augusto Teixeira Mendes <cmendes 'at' inf puc-rio br>
-" Last Change:	2006 Apr. 19
-" Options:	lua_version = 4 or 5
-"		lua_subversion = 0 (4.0, 5.0) or 1 (5.1)
-"		default 5.1
-
-" 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
-
-if !exists("lua_version")
-  " Default is lua 5.1
-  let lua_version = 5
-  let lua_subversion = 1
-elseif !exists("lua_subversion")
-  " lua_version exists, but lua_subversion doesn't. So, set it to 0
-  let lua_subversion = 0
-endif
-
-syn case match
-
-" syncing method
-syn sync minlines=100
-
-" Comments
-syn keyword luaTodo             contained TODO FIXME XXX
-syn match   luaComment          "--.*$" contains=luaTodo
-if lua_version == 5 && lua_subversion == 0
-  syn region  luaComment        matchgroup=luaComment start="--\[\[" end="\]\]" contains=luaTodo,luaInnerComment
-  syn region  luaInnerComment   contained transparent start="\[\[" end="\]\]"
-elseif lua_version > 5 || (lua_version == 5 && lua_subversion >= 1)
-  " Comments in Lua 5.1: [[ ... ]], [=[ ... ]=], [===[ ... ]===], etc.
-  syn region  luaComment        matchgroup=luaComment start="--\[\z(=*\)\[" end="\]\z1\]"
-endif
-
-" First line may start with #!
-syn match luaComment "\%^#!.*"
-
-" catch errors caused by wrong parenthesis and wrong curly brackets or
-" keywords placed outside their respective blocks
-
-syn region luaParen transparent start='(' end=')' contains=ALLBUT,luaError,luaTodo,luaSpecial,luaCond,luaCondElseif,luaCondEnd,luaCondStart,luaBlock,luaRepeatBlock,luaRepeat,luaStatement
-syn match  luaError ")"
-syn match  luaError "}"
-syn match  luaError "\<\%(end\|else\|elseif\|then\|until\|in\)\>"
-
-" Function declaration
-syn region luaFunctionBlock transparent matchgroup=luaFunction start="\<function\>" end="\<end\>" contains=ALLBUT,luaTodo,luaSpecial,luaCond,luaCondElseif,luaCondEnd,luaRepeat
-
-" if then else elseif end
-syn keyword luaCond contained else
-
-" then ... end
-syn region luaCondEnd contained transparent matchgroup=luaCond start="\<then\>" end="\<end\>" contains=ALLBUT,luaTodo,luaSpecial,luaRepeat
-
-" elseif ... then
-syn region luaCondElseif contained transparent matchgroup=luaCond start="\<elseif\>" end="\<then\>" contains=ALLBUT,luaTodo,luaSpecial,luaCond,luaCondElseif,luaCondEnd,luaRepeat
-
-" if ... then
-syn region luaCondStart transparent matchgroup=luaCond start="\<if\>" end="\<then\>"me=e-4 contains=ALLBUT,luaTodo,luaSpecial,luaCond,luaCondElseif,luaCondEnd,luaRepeat nextgroup=luaCondEnd skipwhite skipempty
-
-" do ... end
-syn region luaBlock transparent matchgroup=luaStatement start="\<do\>" end="\<end\>" contains=ALLBUT,luaTodo,luaSpecial,luaCond,luaCondElseif,luaCondEnd,luaRepeat
-
-" repeat ... until
-syn region luaRepeatBlock transparent matchgroup=luaRepeat start="\<repeat\>" end="\<until\>" contains=ALLBUT,luaTodo,luaSpecial,luaCond,luaCondElseif,luaCondEnd,luaRepeat
-
-" while ... do
-syn region luaRepeatBlock transparent matchgroup=luaRepeat start="\<while\>" end="\<do\>"me=e-2 contains=ALLBUT,luaTodo,luaSpecial,luaCond,luaCondElseif,luaCondEnd,luaRepeat nextgroup=luaBlock skipwhite skipempty
-
-" for ... do and for ... in ... do
-syn region luaRepeatBlock transparent matchgroup=luaRepeat start="\<for\>" end="\<do\>"me=e-2 contains=ALLBUT,luaTodo,luaSpecial,luaCond,luaCondElseif,luaCondEnd nextgroup=luaBlock skipwhite skipempty
-
-" Following 'else' example. This is another item to those
-" contains=ALLBUT,... because only the 'for' luaRepeatBlock contains it.
-syn keyword luaRepeat contained in
-
-" other keywords
-syn keyword luaStatement return local break
-syn keyword luaOperator  and or not
-syn keyword luaConstant  nil
-if lua_version > 4
-  syn keyword luaConstant true false
-endif
-
-" Strings
-syn match  luaSpecial contained "\\[\\abfnrtv\'\"[\]]\|\\\d\{,3}"
-syn region luaString  start=+'+ end=+'+ skip=+\\\\\|\\'+ contains=luaSpecial
-syn region luaString  start=+"+ end=+"+ skip=+\\\\\|\\"+ contains=luaSpecial
-" Nested strings
-if (lua_version == 5 && lua_subversion == 0) || lua_version < 5
-  syn region luaString2 matchgroup=luaString start=+\[\[+ end=+\]\]+ contains=luaString2
-elseif lua_version > 5 || (lua_version == 5 && lua_subversion >= 1)
-  syn region luaString2 matchgroup=luaString start="\[\z(=*\)\[" end="\]\z1\]"
-endif
-
-" integer number
-syn match luaNumber "\<[0-9]\+\>"
-" floating point number, with dot, optional exponent
-syn match luaFloat  "\<[0-9]\+\.[0-9]*\%(e[-+]\=[0-9]\+\)\=\>"
-" floating point number, starting with a dot, optional exponent
-syn match luaFloat  "\.[0-9]\+\%(e[-+]\=[0-9]\+\)\=\>"
-" floating point number, without dot, with exponent
-syn match luaFloat  "\<[0-9]\+e[-+]\=[0-9]\+\>"
-
-" tables
-syn region  luaTableBlock transparent matchgroup=luaTable start="{" end="}" contains=ALLBUT,luaTodo,luaSpecial,luaCond,luaCondElseif,luaCondEnd,luaCondStart,luaBlock,luaRepeatBlock,luaRepeat,luaStatement
-
-syn keyword luaFunc assert collectgarbage dofile error gcinfo next
-syn keyword luaFunc print rawget rawset tonumber tostring type _VERSION
-
-if lua_version == 4
-  syn keyword luaFunc _ALERT _ERRORMESSAGE
-  syn keyword luaFunc call copytagmethods dostring
-  syn keyword luaFunc foreach foreachi getglobal getn
-  syn keyword luaFunc gettagmethod globals newtag
-  syn keyword luaFunc setglobal settag settagmethod sort
-  syn keyword luaFunc tag tinsert tremove
-  syn keyword luaFunc _INPUT _OUTPUT _STDIN _STDOUT _STDERR
-  syn keyword luaFunc openfile closefile flush seek
-  syn keyword luaFunc setlocale execute remove rename tmpname
-  syn keyword luaFunc getenv date clock exit
-  syn keyword luaFunc readfrom writeto appendto read write
-  syn keyword luaFunc PI abs sin cos tan asin
-  syn keyword luaFunc acos atan atan2 ceil floor
-  syn keyword luaFunc mod frexp ldexp sqrt min max log
-  syn keyword luaFunc log10 exp deg rad random
-  syn keyword luaFunc randomseed strlen strsub strlower strupper
-  syn keyword luaFunc strchar strrep ascii strbyte
-  syn keyword luaFunc format strfind gsub
-  syn keyword luaFunc getinfo getlocal setlocal setcallhook setlinehook
-elseif lua_version == 5
-  " Not sure if all these functions need to be highlighted...
-  syn keyword luaFunc _G getfenv getmetatable ipairs loadfile
-  syn keyword luaFunc loadstring pairs pcall rawequal
-  syn keyword luaFunc require setfenv setmetatable unpack xpcall
-  if lua_subversion == 0
-    syn keyword luaFunc loadlib LUA_PATH _LOADED _REQUIREDNAME
-  elseif lua_subversion == 1
-    syn keyword luaFunc load module select
-    syn match luaFunc /package\.cpath/
-    syn match luaFunc /package\.loaded/
-    syn match luaFunc /package\.loadlib/
-    syn match luaFunc /package\.path/
-    syn match luaFunc /package\.preload/
-    syn match luaFunc /package\.seeall/
-    syn match luaFunc /coroutine\.running/
-  endif
-  syn match   luaFunc /coroutine\.create/
-  syn match   luaFunc /coroutine\.resume/
-  syn match   luaFunc /coroutine\.status/
-  syn match   luaFunc /coroutine\.wrap/
-  syn match   luaFunc /coroutine\.yield/
-  syn match   luaFunc /string\.byte/
-  syn match   luaFunc /string\.char/
-  syn match   luaFunc /string\.dump/
-  syn match   luaFunc /string\.find/
-  syn match   luaFunc /string\.len/
-  syn match   luaFunc /string\.lower/
-  syn match   luaFunc /string\.rep/
-  syn match   luaFunc /string\.sub/
-  syn match   luaFunc /string\.upper/
-  syn match   luaFunc /string\.format/
-  syn match   luaFunc /string\.gsub/
-  if lua_subversion == 0
-    syn match luaFunc /string\.gfind/
-  elseif lua_subversion == 1
-    syn match luaFunc /string\.gmatch/
-    syn match luaFunc /string\.match/
-    syn match luaFunc /string\.reverse/
-    syn match luaFunc /table\.maxn/
-  endif
-  syn match   luaFunc /table\.concat/
-  syn match   luaFunc /table\.foreach/
-  syn match   luaFunc /table\.foreachi/
-  syn match   luaFunc /table\.getn/
-  syn match   luaFunc /table\.sort/
-  syn match   luaFunc /table\.insert/
-  syn match   luaFunc /table\.remove/
-  syn match   luaFunc /table\.setn/
-  syn match   luaFunc /math\.abs/
-  syn match   luaFunc /math\.acos/
-  syn match   luaFunc /math\.asin/
-  syn match   luaFunc /math\.atan/
-  syn match   luaFunc /math\.atan2/
-  syn match   luaFunc /math\.ceil/
-  syn match   luaFunc /math\.sin/
-  syn match   luaFunc /math\.cos/
-  syn match   luaFunc /math\.tan/
-  syn match   luaFunc /math\.deg/
-  syn match   luaFunc /math\.exp/
-  syn match   luaFunc /math\.floor/
-  syn match   luaFunc /math\.log/
-  syn match   luaFunc /math\.log10/
-  syn match   luaFunc /math\.max/
-  syn match   luaFunc /math\.min/
-  if lua_subversion == 0
-    syn match luaFunc /math\.mod/
-  elseif lua_subversion == 1
-    syn match luaFunc /math\.fmod/
-    syn match luaFunc /math\.modf/
-    syn match luaFunc /math\.cosh/
-    syn match luaFunc /math\.sinh/
-    syn match luaFunc /math\.tanh/
-  endif
-  syn match   luaFunc /math\.pow/
-  syn match   luaFunc /math\.rad/
-  syn match   luaFunc /math\.sqrt/
-  syn match   luaFunc /math\.frexp/
-  syn match   luaFunc /math\.ldexp/
-  syn match   luaFunc /math\.random/
-  syn match   luaFunc /math\.randomseed/
-  syn match   luaFunc /math\.pi/
-  syn match   luaFunc /io\.stdin/
-  syn match   luaFunc /io\.stdout/
-  syn match   luaFunc /io\.stderr/
-  syn match   luaFunc /io\.close/
-  syn match   luaFunc /io\.flush/
-  syn match   luaFunc /io\.input/
-  syn match   luaFunc /io\.lines/
-  syn match   luaFunc /io\.open/
-  syn match   luaFunc /io\.output/
-  syn match   luaFunc /io\.popen/
-  syn match   luaFunc /io\.read/
-  syn match   luaFunc /io\.tmpfile/
-  syn match   luaFunc /io\.type/
-  syn match   luaFunc /io\.write/
-  syn match   luaFunc /os\.clock/
-  syn match   luaFunc /os\.date/
-  syn match   luaFunc /os\.difftime/
-  syn match   luaFunc /os\.execute/
-  syn match   luaFunc /os\.exit/
-  syn match   luaFunc /os\.getenv/
-  syn match   luaFunc /os\.remove/
-  syn match   luaFunc /os\.rename/
-  syn match   luaFunc /os\.setlocale/
-  syn match   luaFunc /os\.time/
-  syn match   luaFunc /os\.tmpname/
-  syn match   luaFunc /debug\.debug/
-  syn match   luaFunc /debug\.gethook/
-  syn match   luaFunc /debug\.getinfo/
-  syn match   luaFunc /debug\.getlocal/
-  syn match   luaFunc /debug\.getupvalue/
-  syn match   luaFunc /debug\.setlocal/
-  syn match   luaFunc /debug\.setupvalue/
-  syn match   luaFunc /debug\.sethook/
-  syn match   luaFunc /debug\.traceback/
-  if lua_subversion == 1
-    syn match luaFunc /debug\.getfenv/
-    syn match luaFunc /debug\.getmetatable/
-    syn match luaFunc /debug\.getregistry/
-    syn match luaFunc /debug\.setfenv/
-    syn match luaFunc /debug\.setmetatable/
-  endif
-endif
-
-" 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_lua_syntax_inits")
-  if version < 508
-    let did_lua_syntax_inits = 1
-    command -nargs=+ HiLink hi link <args>
-  else
-    command -nargs=+ HiLink hi def link <args>
-  endif
-
-  HiLink luaStatement		Statement
-  HiLink luaRepeat		Repeat
-  HiLink luaString		String
-  HiLink luaString2		String
-  HiLink luaNumber		Number
-  HiLink luaFloat		Float
-  HiLink luaOperator		Operator
-  HiLink luaConstant		Constant
-  HiLink luaCond		Conditional
-  HiLink luaFunction		Function
-  HiLink luaComment		Comment
-  HiLink luaTodo		Todo
-  HiLink luaTable		Structure
-  HiLink luaError		Error
-  HiLink luaSpecial		SpecialChar
-  HiLink luaFunc		Identifier
-
-  delcommand HiLink
-endif
-
-let b:current_syntax = "lua"
-
-" vim: et ts=8
+" Vim syntax file
+" Language:	Lua 4.0, Lua 5.0 and Lua 5.1
+" Maintainer:	Marcus Aurelius Farias <marcus.cf 'at' bol com br>
+" First Author:	Carlos Augusto Teixeira Mendes <cmendes 'at' inf puc-rio br>
+" Last Change:	2006 Apr 21
+" Options:	lua_version = 4 or 5
+"		lua_subversion = 0 (4.0, 5.0) or 1 (5.1)
+"		default 5.1
+
+" 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
+
+if !exists("lua_version")
+  " Default is lua 5.1
+  let lua_version = 5
+  let lua_subversion = 1
+elseif !exists("lua_subversion")
+  " lua_version exists, but lua_subversion doesn't. So, set it to 0
+  let lua_subversion = 0
+endif
+
+syn case match
+
+" syncing method
+syn sync minlines=100
+
+" Comments
+syn keyword luaTodo             contained TODO FIXME XXX
+syn match   luaComment          "--.*$" contains=luaTodo
+if lua_version == 5 && lua_subversion == 0
+  syn region  luaComment        matchgroup=luaComment start="--\[\[" end="\]\]" contains=luaTodo,luaInnerComment
+  syn region  luaInnerComment   contained transparent start="\[\[" end="\]\]"
+elseif lua_version > 5 || (lua_version == 5 && lua_subversion >= 1)
+  " Comments in Lua 5.1: --[[ ... ]], [=[ ... ]=], [===[ ... ]===], etc.
+  syn region  luaComment        matchgroup=luaComment start="--\[\z(=*\)\[" end="\]\z1\]"
+endif
+
+" First line may start with #!
+syn match luaComment "\%^#!.*"
+
+" catch errors caused by wrong parenthesis and wrong curly brackets or
+" keywords placed outside their respective blocks
+
+syn region luaParen transparent start='(' end=')' contains=ALLBUT,luaError,luaTodo,luaSpecial,luaCond,luaCondElseif,luaCondEnd,luaCondStart,luaBlock,luaRepeatBlock,luaRepeat,luaStatement
+syn match  luaError ")"
+syn match  luaError "}"
+syn match  luaError "\<\%(end\|else\|elseif\|then\|until\|in\)\>"
+
+" Function declaration
+syn region luaFunctionBlock transparent matchgroup=luaFunction start="\<function\>" end="\<end\>" contains=ALLBUT,luaTodo,luaSpecial,luaCond,luaCondElseif,luaCondEnd,luaRepeat
+
+" if then else elseif end
+syn keyword luaCond contained else
+
+" then ... end
+syn region luaCondEnd contained transparent matchgroup=luaCond start="\<then\>" end="\<end\>" contains=ALLBUT,luaTodo,luaSpecial,luaRepeat
+
+" elseif ... then
+syn region luaCondElseif contained transparent matchgroup=luaCond start="\<elseif\>" end="\<then\>" contains=ALLBUT,luaTodo,luaSpecial,luaCond,luaCondElseif,luaCondEnd,luaRepeat
+
+" if ... then
+syn region luaCondStart transparent matchgroup=luaCond start="\<if\>" end="\<then\>"me=e-4 contains=ALLBUT,luaTodo,luaSpecial,luaCond,luaCondElseif,luaCondEnd,luaRepeat nextgroup=luaCondEnd skipwhite skipempty
+
+" do ... end
+syn region luaBlock transparent matchgroup=luaStatement start="\<do\>" end="\<end\>" contains=ALLBUT,luaTodo,luaSpecial,luaCond,luaCondElseif,luaCondEnd,luaRepeat
+
+" repeat ... until
+syn region luaRepeatBlock transparent matchgroup=luaRepeat start="\<repeat\>" end="\<until\>" contains=ALLBUT,luaTodo,luaSpecial,luaCond,luaCondElseif,luaCondEnd,luaRepeat
+
+" while ... do
+syn region luaRepeatBlock transparent matchgroup=luaRepeat start="\<while\>" end="\<do\>"me=e-2 contains=ALLBUT,luaTodo,luaSpecial,luaCond,luaCondElseif,luaCondEnd,luaRepeat nextgroup=luaBlock skipwhite skipempty
+
+" for ... do and for ... in ... do
+syn region luaRepeatBlock transparent matchgroup=luaRepeat start="\<for\>" end="\<do\>"me=e-2 contains=ALLBUT,luaTodo,luaSpecial,luaCond,luaCondElseif,luaCondEnd nextgroup=luaBlock skipwhite skipempty
+
+" Following 'else' example. This is another item to those
+" contains=ALLBUT,... because only the 'for' luaRepeatBlock contains it.
+syn keyword luaRepeat contained in
+
+" other keywords
+syn keyword luaStatement return local break
+syn keyword luaOperator  and or not
+syn keyword luaConstant  nil
+if lua_version > 4
+  syn keyword luaConstant true false
+endif
+
+" Strings
+if lua_version < 5
+  syn match  luaSpecial contained "\\[\\abfnrtv\'\"]\|\\\d\{,3}"
+elseif lua_version == 5 && lua_subversion == 0
+  syn match  luaSpecial contained "\\[\\abfnrtv\'\"[\]]\|\\\d\{,3}"
+  syn region luaString2 matchgroup=luaString start=+\[\[+ end=+\]\]+ contains=luaString2
+elseif lua_version > 5 || (lua_version == 5 && lua_subversion >= 1)
+  syn match  luaSpecial contained "\\[\\abfnrtv\'\"]\|\\\d\{,3}"
+  syn region luaString2 matchgroup=luaString start="\[\z(=*\)\[" end="\]\z1\]"
+endif
+syn region luaString  start=+'+ end=+'+ skip=+\\\\\|\\'+ contains=luaSpecial
+syn region luaString  start=+"+ end=+"+ skip=+\\\\\|\\"+ contains=luaSpecial
+
+" integer number
+syn match luaNumber "\<[0-9]\+\>"
+" floating point number, with dot, optional exponent
+syn match luaFloat  "\<[0-9]\+\.[0-9]*\%(e[-+]\=[0-9]\+\)\=\>"
+" floating point number, starting with a dot, optional exponent
+syn match luaFloat  "\.[0-9]\+\%(e[-+]\=[0-9]\+\)\=\>"
+" floating point number, without dot, with exponent
+syn match luaFloat  "\<[0-9]\+e[-+]\=[0-9]\+\>"
+
+" tables
+syn region  luaTableBlock transparent matchgroup=luaTable start="{" end="}" contains=ALLBUT,luaTodo,luaSpecial,luaCond,luaCondElseif,luaCondEnd,luaCondStart,luaBlock,luaRepeatBlock,luaRepeat,luaStatement
+
+syn keyword luaFunc assert collectgarbage dofile error next
+syn keyword luaFunc print rawget rawset tonumber tostring type _VERSION
+
+if lua_version == 4
+  syn keyword luaFunc _ALERT _ERRORMESSAGE gcinfo
+  syn keyword luaFunc call copytagmethods dostring
+  syn keyword luaFunc foreach foreachi getglobal getn
+  syn keyword luaFunc gettagmethod globals newtag
+  syn keyword luaFunc setglobal settag settagmethod sort
+  syn keyword luaFunc tag tinsert tremove
+  syn keyword luaFunc _INPUT _OUTPUT _STDIN _STDOUT _STDERR
+  syn keyword luaFunc openfile closefile flush seek
+  syn keyword luaFunc setlocale execute remove rename tmpname
+  syn keyword luaFunc getenv date clock exit
+  syn keyword luaFunc readfrom writeto appendto read write
+  syn keyword luaFunc PI abs sin cos tan asin
+  syn keyword luaFunc acos atan atan2 ceil floor
+  syn keyword luaFunc mod frexp ldexp sqrt min max log
+  syn keyword luaFunc log10 exp deg rad random
+  syn keyword luaFunc randomseed strlen strsub strlower strupper
+  syn keyword luaFunc strchar strrep ascii strbyte
+  syn keyword luaFunc format strfind gsub
+  syn keyword luaFunc getinfo getlocal setlocal setcallhook setlinehook
+elseif lua_version == 5
+  " Not sure if all these functions need to be highlighted...
+  syn keyword luaFunc _G getfenv getmetatable ipairs loadfile
+  syn keyword luaFunc loadstring pairs pcall rawequal
+  syn keyword luaFunc require setfenv setmetatable unpack xpcall
+  if lua_subversion == 0
+    syn keyword luaFunc gcinfo loadlib LUA_PATH _LOADED _REQUIREDNAME
+  elseif lua_subversion == 1
+    syn keyword luaFunc load module select
+    syn match luaFunc /package\.cpath/
+    syn match luaFunc /package\.loaded/
+    syn match luaFunc /package\.loadlib/
+    syn match luaFunc /package\.path/
+    syn match luaFunc /package\.preload/
+    syn match luaFunc /package\.seeall/
+    syn match luaFunc /coroutine\.running/
+  endif
+  syn match   luaFunc /coroutine\.create/
+  syn match   luaFunc /coroutine\.resume/
+  syn match   luaFunc /coroutine\.status/
+  syn match   luaFunc /coroutine\.wrap/
+  syn match   luaFunc /coroutine\.yield/
+  syn match   luaFunc /string\.byte/
+  syn match   luaFunc /string\.char/
+  syn match   luaFunc /string\.dump/
+  syn match   luaFunc /string\.find/
+  syn match   luaFunc /string\.len/
+  syn match   luaFunc /string\.lower/
+  syn match   luaFunc /string\.rep/
+  syn match   luaFunc /string\.sub/
+  syn match   luaFunc /string\.upper/
+  syn match   luaFunc /string\.format/
+  syn match   luaFunc /string\.gsub/
+  if lua_subversion == 0
+    syn match luaFunc /string\.gfind/
+    syn match luaFunc /table\.getn/
+    syn match luaFunc /table\.setn/
+    syn match luaFunc /table\.foreach/
+    syn match luaFunc /table\.foreachi/
+  elseif lua_subversion == 1
+    syn match luaFunc /string\.gmatch/
+    syn match luaFunc /string\.match/
+    syn match luaFunc /string\.reverse/
+    syn match luaFunc /table\.maxn/
+  endif
+  syn match   luaFunc /table\.concat/
+  syn match   luaFunc /table\.sort/
+  syn match   luaFunc /table\.insert/
+  syn match   luaFunc /table\.remove/
+  syn match   luaFunc /math\.abs/
+  syn match   luaFunc /math\.acos/
+  syn match   luaFunc /math\.asin/
+  syn match   luaFunc /math\.atan/
+  syn match   luaFunc /math\.atan2/
+  syn match   luaFunc /math\.ceil/
+  syn match   luaFunc /math\.sin/
+  syn match   luaFunc /math\.cos/
+  syn match   luaFunc /math\.tan/
+  syn match   luaFunc /math\.deg/
+  syn match   luaFunc /math\.exp/
+  syn match   luaFunc /math\.floor/
+  syn match   luaFunc /math\.log/
+  syn match   luaFunc /math\.log10/
+  syn match   luaFunc /math\.max/
+  syn match   luaFunc /math\.min/
+  if lua_subversion == 0
+    syn match luaFunc /math\.mod/
+  elseif lua_subversion == 1
+    syn match luaFunc /math\.fmod/
+    syn match luaFunc /math\.modf/
+    syn match luaFunc /math\.cosh/
+    syn match luaFunc /math\.sinh/
+    syn match luaFunc /math\.tanh/
+  endif
+  syn match   luaFunc /math\.pow/
+  syn match   luaFunc /math\.rad/
+  syn match   luaFunc /math\.sqrt/
+  syn match   luaFunc /math\.frexp/
+  syn match   luaFunc /math\.ldexp/
+  syn match   luaFunc /math\.random/
+  syn match   luaFunc /math\.randomseed/
+  syn match   luaFunc /math\.pi/
+  syn match   luaFunc /io\.stdin/
+  syn match   luaFunc /io\.stdout/
+  syn match   luaFunc /io\.stderr/
+  syn match   luaFunc /io\.close/
+  syn match   luaFunc /io\.flush/
+  syn match   luaFunc /io\.input/
+  syn match   luaFunc /io\.lines/
+  syn match   luaFunc /io\.open/
+  syn match   luaFunc /io\.output/
+  syn match   luaFunc /io\.popen/
+  syn match   luaFunc /io\.read/
+  syn match   luaFunc /io\.tmpfile/
+  syn match   luaFunc /io\.type/
+  syn match   luaFunc /io\.write/
+  syn match   luaFunc /os\.clock/
+  syn match   luaFunc /os\.date/
+  syn match   luaFunc /os\.difftime/
+  syn match   luaFunc /os\.execute/
+  syn match   luaFunc /os\.exit/
+  syn match   luaFunc /os\.getenv/
+  syn match   luaFunc /os\.remove/
+  syn match   luaFunc /os\.rename/
+  syn match   luaFunc /os\.setlocale/
+  syn match   luaFunc /os\.time/
+  syn match   luaFunc /os\.tmpname/
+  syn match   luaFunc /debug\.debug/
+  syn match   luaFunc /debug\.gethook/
+  syn match   luaFunc /debug\.getinfo/
+  syn match   luaFunc /debug\.getlocal/
+  syn match   luaFunc /debug\.getupvalue/
+  syn match   luaFunc /debug\.setlocal/
+  syn match   luaFunc /debug\.setupvalue/
+  syn match   luaFunc /debug\.sethook/
+  syn match   luaFunc /debug\.traceback/
+  if lua_subversion == 1
+    syn match luaFunc /debug\.getfenv/
+    syn match luaFunc /debug\.getmetatable/
+    syn match luaFunc /debug\.getregistry/
+    syn match luaFunc /debug\.setfenv/
+    syn match luaFunc /debug\.setmetatable/
+  endif
+endif
+
+" 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_lua_syntax_inits")
+  if version < 508
+    let did_lua_syntax_inits = 1
+    command -nargs=+ HiLink hi link <args>
+  else
+    command -nargs=+ HiLink hi def link <args>
+  endif
+
+  HiLink luaStatement		Statement
+  HiLink luaRepeat		Repeat
+  HiLink luaString		String
+  HiLink luaString2		String
+  HiLink luaNumber		Number
+  HiLink luaFloat		Float
+  HiLink luaOperator		Operator
+  HiLink luaConstant		Constant
+  HiLink luaCond		Conditional
+  HiLink luaFunction		Function
+  HiLink luaComment		Comment
+  HiLink luaTodo		Todo
+  HiLink luaTable		Structure
+  HiLink luaError		Error
+  HiLink luaSpecial		SpecialChar
+  HiLink luaFunc		Identifier
+
+  delcommand HiLink
+endif
+
+let b:current_syntax = "lua"
+
+" vim: et ts=8