" Author: Carlos Augusto Teixeira Mendes <cmendes@inf.puc-rio.br>
" Last Change: 09 october 1998
"
" Still has some syncing problems...
" 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 case match
"Comments
syn keyword luaTodo contained TODO FIXME XXX
syn match luaComment "--.*$" contains=luaTodo
"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,luaStatement
syn match luaError ")"
syn match luaError "}"
syn match luaError "\<\(end\|else\|elseif\|then\|until\)\>"
"Function declaration
syn region luaFunctionBlock transparent matchgroup=luaFunction start="\<function\>" end="\<end\>" contains=ALLBUT,luaTodo,luaSpecial,luaCond,luaCondElseif,luaCondEnd
"if then else elseif end
syn keyword luaCond contained else
syn region luaCondEnd contained transparent matchgroup=luaCond start="\<then\>" end="\<end\>" contains=ALLBUT,luaTodo,luaSpecial
syn region luaCondElseif contained transparent matchgroup=luaCond start="\<elseif\>" end="\<then\>" contains=ALLBUT,luaTodo,luaSpecial,luaCond,luaCondElseif,luaCondEnd
syn region luaCondStart transparent matchgroup=luaCond start="\<if\>" end="\<then\>"me=e-4 contains=ALLBUT,luaTodo,luaSpecial,luaCond,luaCondElseif,luaCondEnd nextgroup=luaCondEnd skipwhite skipempty
" do end block
syn region luaBlock transparent matchgroup=luaStatement start="\<do\>" end="\<end\>" contains=ALLBUT,luaTodo,luaSpecial,luaCond,luaCondElseif,luaCondEnd
"repeat until and while do blocks
syn region luaRepeatBlock transparent matchgroup=luaRepeat start="\<repeat\>" end="\<until\>" contains=ALLBUT,luaTodo,luaSpecial,luaCond,luaCondElseif,luaCondEnd
syn region luaRepeatBlock transparent matchgroup=luaRepeat start="\<while\>" end="\<do\>"me=e-2 contains=ALLBUT,luaTodo,luaSpecial,luaCond,luaCondElseif,luaCondEnd nextgroup=luaBlock skipwhite skipempty
"other keywords
syn keyword luaStatement return local
syn keyword luaOperator and or not
syn keyword luaConstant nil
"Pre processor
syn match luaPreProc "^\s*$\(debug\|nodebug\|if\|ifnot\|end\|else\|endinput\)\>"
"Strings
syn match luaSpecial contained "\\[ntr]"
syn region luaString start=+'+ end=+'+ skip=+\\\\\|\\'+ contains=luaSpecial
syn region luaString start=+"+ end=+"+ skip=+\\\\\|\\"+ contains=luaSpecial
syn region luaString start=+\[\[+ end=+\]\]+
"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,luaStatement
"internal functions
syn keyword luaInternalFunc assert call collectgarbage dofile copytagmethods
syn keyword luaInternalFunc dostring error foreach foreachvar getglobal
syn keyword luaInternalFunc newtag next nextvar print rawgetglobal
syn keyword luaInternalFunc rawgettable rawsetglobal rawsettable seterrormethod
syn keyword luaInternalFunc setglobal settagmethod gettagmethod settag tonumber
syn keyword luaInternalFunc tostring tag type
"standard libraries
syn keyword luaStdLibFunc setlocale execute remove rename tmpname
syn keyword luaStdLibFunc getenv date clock exit debug print_stack
syn keyword luaStdLibFunc readfrom writeto appendto read write
syn keyword luaStdLibFunc abs sin cos tan asin
syn keyword luaStdLibFunc acos atan atan2 ceil floor
syn keyword luaStdLibFunc mod frexp ldexp sqrt min max log
syn keyword luaStdLibFunc log10 exp deg rad random
syn keyword luaStdLibFunc randomseed strlen strsub strlower strupper
syn keyword luaStdLibFunc strchar strrep ascii strbyte format
syn keyword luaStdLibFunc strfind gsub
"syncing method
syn sync minlines=100
" 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")