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" Vim syntax file
" Language:	Tcl/Tk
" Maintainer:	Taylor Venable <taylor@metasyntax.net>
" 		(previously Brett Cannon <brett@python.org>)
" 		(previously Dean Copsey <copsey@cs.ucdavis.edu>)
"		(previously Matt Neumann <mattneu@purpleturtle.com>)
"		(previously Allan Kelly <allan@fruitloaf.co.uk>)
" Original:	Robin Becker <robin@jessikat.demon.co.uk>
" Last Change:	2009/04/06 02:38:36
" Version:	1.13
" URL:		http://real.metasyntax.net:2357/cvs/cvsweb.cgi/Config/vim/syntax/tcl.vim
"
" Keywords TODO: click anchor

" 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

" Basic Tcl commands: http://www.tcl.tk/man/tcl8.5/TclCmd/contents.htm
syn keyword tclCommand		after append apply array bgerror binary catch cd chan clock
syn keyword tclCommand		close concat dde dict encoding eof error eval exec exit
syn keyword tclCommand		expr fblocked fconfigure fcopy file fileevent filename flush
syn keyword tclCommand		format gets glob global history incr info interp join
syn keyword tclCommand		lappend lassign lindex linsert list llength load lrange lrepeat
syn keyword tclCommand		lreplace lreverse lsearch lset lsort memory namespace open package
syn keyword tclCommand		pid proc puts pwd read regexp registry regsub rename return
syn keyword tclCommand		scan seek set socket source split string subst tell time
syn keyword tclCommand		trace unknown unload unset update uplevel upvar variable vwait

" The 'Tcl Standard Library' commands: http://www.tcl.tk/man/tcl8.5/TclCmd/library.htm
syn keyword tclCommand		auto_execok auto_import auto_load auto_mkindex auto_mkindex_old
syn keyword tclCommand		auto_qualify auto_reset parray tcl_endOfWord tcl_findLibrary
syn keyword tclCommand		tcl_startOfNextWord tcl_startOfPreviousWord tcl_wordBreakAfter
syn keyword tclCommand		tcl_wordBreakBefore

" Commands that were added in Tcl 8.6

syn keyword tclCommand		my oo::copy oo::define oo::objdefine self
syn keyword tclCommand		coroutine tailcall throw yield

" Global variables used by Tcl: http://www.tcl.tk/man/tcl8.5/TclCmd/tclvars.htm
syn keyword tclVars		env errorCode errorInfo tcl_library tcl_patchLevel tcl_pkgPath
syn keyword tclVars		tcl_platform tcl_precision tcl_rcFileName tcl_traceCompile
syn keyword tclVars		tcl_traceExec tcl_wordchars tcl_nonwordchars tcl_version argc argv
syn keyword tclVars		argv0 tcl_interactive geometry

" Strings which expr accepts as boolean values, aside from zero / non-zero.
syn keyword tclBoolean		true false on off yes no

syn keyword tclLabel		case default
syn keyword tclConditional	if then else elseif switch
syn keyword tclConditional	try finally
syn keyword tclRepeat		while for foreach break continue
syn keyword tcltkSwitch	contained	insert create polygon fill outline tag

" WIDGETS
" commands associated with widgets
syn keyword tcltkWidgetSwitch contained background highlightbackground insertontime cget
syn keyword tcltkWidgetSwitch contained selectborderwidth borderwidth highlightcolor insertwidth
syn keyword tcltkWidgetSwitch contained selectforeground cursor highlightthickness padx setgrid
syn keyword tcltkWidgetSwitch contained exportselection insertbackground pady takefocus
syn keyword tcltkWidgetSwitch contained font insertborderwidth relief xscrollcommand
syn keyword tcltkWidgetSwitch contained foreground insertofftime selectbackground yscrollcommand
syn keyword tcltkWidgetSwitch contained height spacing1 spacing2 spacing3
syn keyword tcltkWidgetSwitch contained state tabs width wrap
" button
syn keyword tcltkWidgetSwitch contained command default
" canvas
syn keyword tcltkWidgetSwitch contained closeenough confine scrollregion xscrollincrement yscrollincrement orient
" checkbutton, radiobutton
syn keyword tcltkWidgetSwitch contained indicatoron offvalue onvalue selectcolor selectimage state variable
" entry, frame
syn keyword tcltkWidgetSwitch contained show class colormap container visual
" listbox, menu
syn keyword tcltkWidgetSwitch contained selectmode postcommand selectcolor tearoff tearoffcommand title type
" menubutton, message
syn keyword tcltkWidgetSwitch contained direction aspect justify
" scale
syn keyword tcltkWidgetSwitch contained bigincrement digits from length resolution showvalue sliderlength sliderrelief tickinterval to
" scrollbar
syn keyword tcltkWidgetSwitch contained activerelief elementborderwidth
" image
syn keyword tcltkWidgetSwitch contained delete names types create
" variable reference
	" ::optional::namespaces
syn match tclVarRef "$\(\(::\)\?\([[:alnum:]_]*::\)*\)\a[[:alnum:]_]*"
	" ${...} may contain any character except '}'
syn match tclVarRef "${[^}]*}"

" The syntactic unquote-splicing replacement for [expand].
syn match tclExpand '\s{\*}'
syn match tclExpand '^{\*}'

" menu, mane add
syn keyword tcltkWidgetSwitch contained active end last none cascade checkbutton command radiobutton separator
syn keyword tcltkWidgetSwitch contained activebackground actveforeground accelerator background bitmap columnbreak
syn keyword tcltkWidgetSwitch contained font foreground hidemargin image indicatoron label menu offvalue onvalue
syn keyword tcltkWidgetSwitch contained selectcolor selectimage state underline value variable
syn keyword tcltkWidgetSwitch contained add clone configure delete entrycget entryconfigure index insert invoke
syn keyword tcltkWidgetSwitch contained post postcascade type unpost yposition activate
"syn keyword tcltkWidgetSwitch contained
"syn match tcltkWidgetSwitch contained
syn region tcltkWidget matchgroup=tcltkWidgetColor start="\<button\>" matchgroup=NONE skip="^\s*$" end="]\|[^\\]*\s*$"he=e-1 contains=tclLineContinue,tcltkWidgetSwitch,tclString,tcltkSwitch,tclNumber,tclVarRef
syn region tcltkWidget matchgroup=tcltkWidgetColor start="\<scale\>" matchgroup=NONE skip="^\s*$" end="]\|[^\\]*\s*$"he=e-1  contains=tclLineContinue,tcltkWidgetSwitch,tclString,tcltkSwitch,tclNumber,tclVarRef

syn region tcltkWidget matchgroup=tcltkWidgetColor start="\<canvas\>" matchgroup=NONE skip="^\s*$" end="]\|[^\\]*\s*$"he=e-1  contains=tclLineContinue,tcltkWidgetSwitch,tclString,tcltkSwitch,tclNumber,tclVarRef
syn region tcltkWidget matchgroup=tcltkWidgetColor start="\<checkbutton\>" matchgroup=NONE skip="^\s*$" end="]\|[^\\]*\s*$"he=e-1  contains=tclLineContinue,tcltkWidgetSwitch,tclString,tcltkSwitch,tclNumber,tclVarRef
syn region tcltkWidget matchgroup=tcltkWidgetColor start="\<entry\>" matchgroup=NONE skip="^\s*$" end="]\|[^\\]*\s*$"he=e-1  contains=tclLineContinue,tcltkWidgetSwitch,tclString,tcltkSwitch,tclNumber,tclVarRef
syn region tcltkWidget matchgroup=tcltkWidgetColor start="\<frame\>" matchgroup=NONE skip="^\s*$" end="]\|[^\\]*\s*$"he=e-1  contains=tclLineContinue,tcltkWidgetSwitch,tclString,tcltkSwitch,tclNumber,tclVarRef
syn region tcltkWidget matchgroup=tcltkWidgetColor start="\<image\>" matchgroup=NONE skip="^\s*$" end="]\|[^\\]*\s*$"he=e-1  contains=tclLineContinue,tcltkWidgetSwitch,tclString,tcltkSwitch,tclNumber,tclVarRef
syn region tcltkWidget matchgroup=tcltkWidgetColor start="\<listbox\>" matchgroup=NONE skip="^\s*$" end="]\|[^\\]*\s*$"he=e-1  contains=tclLineContinue,tcltkWidgetSwitch,tclString,tcltkSwitch,tclNumber,tclVarRef
syn region tcltkWidget matchgroup=tcltkWidgetColor start="\<menubutton\>" matchgroup=NONE skip="^\s*$" end="]\|[^\\]*\s*$"he=e-1  contains=tclLineContinue,tcltkWidgetSwitch,tclString,tcltkSwitch,tclNumber,tclVarRef
syn region tcltkWidget matchgroup=tcltkWidgetColor start="\<message\>" matchgroup=NONE skip="^\s*$" end="]\|[^\\]*\s*$"he=e-1  contains=tclLineContinue,tcltkWidgetSwitch,tclString,tcltkSwitch,tclNumber,tclVarRef
syn region tcltkWidget matchgroup=tcltkWidgetColor start="\<radiobutton\>" matchgroup=NONE skip="^\s*$" end="]\|[^\\]*\s*$"he=e-1 contains=tclLineContinue,tcltkWidgetSwitch,tclString,tcltkSwitch,tclNumber,tclVarRef
syn region tcltkWidget matchgroup=tcltkWidgetColor start="\<scrollbar\>" matchgroup=NONE skip="^\s*$" end="]\|[^\\]*\s*$"he=e-1  contains=tclLineContinue,tcltkWidgetSwitch,tclString,tcltkSwitch,tclNumber,tclVarRef
" These words are dual purpose.
" match switches
"syn match tcltkWidgetSwitch contained "-text"hs=s+1
syn match tcltkWidgetSwitch contained "-text\(var\)\?"hs=s+1
syn match tcltkWidgetSwitch contained "-menu"hs=s+1
syn match tcltkWidgetSwitch contained "-label"hs=s+1
" match commands - 2 lines for pretty match.
"variable
" Special case - If a number follows a variable region, it must be at the end of
" the pattern, by definition. Therefore, (1) either include a number as the region
" end and exclude tclNumber from the contains list, or (2) make variable
" keepend. As (1) would put variable out of step with everything else, use (2).
syn region tcltkCommand matchgroup=tcltkCommandColor start="^\<variable\>" matchgroup=NONE skip="^\s*$" end="]\|[^\\]*\s*$"he=e-1  contains=tclLineContinue,tclString,tclNumber,tclVarRef,tcltkCommand
syn region tcltkCommand matchgroup=tcltkCommandColor start="\s\<variable\>\|\[\<variable\>"hs=s+1 matchgroup=NONE skip="^\s*$" end="]\|[^\\]*\s*$"he=e-1  contains=tclLineContinue,tclString,tclNumber,tclVarRef,tcltkCommand
" menu
syn region tcltkWidget matchgroup=tcltkWidgetColor start="^\<menu\>" matchgroup=NONE skip="^\s*$" end="]\|[^\\]*\s*$"he=e-1  contains=tclLineContinue,tcltkWidgetSwitch,tclString,tcltkSwitch,tclNumber,tclVarRef
syn region tcltkWidget matchgroup=tcltkWidgetColor start="\s\<menu\>\|\[\<menu\>"hs=s+1 matchgroup=NONE skip="^\s*$" end="]\|[^\\]*\s*$"he=e-1  contains=tclLineContinue,tcltkWidgetSwitch,tclString,tcltkSwitch,tclNumber,tclVarRef
" label
syn region tcltkWidget matchgroup=tcltkWidgetColor start="^\<label\>" matchgroup=NONE skip="^\s*$" end="]\|[^\\]*\s*$"he=e-1  contains=tclLineContinue,tcltkWidgetSwitch,tclString,tcltkSwitch,tclNumber,tclVarRef
syn region tcltkWidget matchgroup=tcltkWidgetColor start="\s\<label\>\|\[\<label\>"hs=s+1 matchgroup=NONE skip="^\s*$" end="]\|[^\\]*\s*$"he=e-1  contains=tclLineContinue,tcltkWidgetSwitch,tclString,tcltkSwitch,tclNumber,tclVarRef
" text
syn region tcltkWidget matchgroup=tcltkWidgetColor start="^\<text\>" matchgroup=NONE skip="^\s*$" end="]\|[^\\]*\s*$"he=e-1  contains=tclLineContinue,tcltkWidget,tcltkWidgetSwitch,tcltkSwitch,tclNumber,tclVarRef,tclString
syn region tcltkWidget matchgroup=tcltkWidgetColor start="\s\<text\>\|\[\<text\>"hs=s+1 matchgroup=NONE skip="^\s*$" end="]\|[^\\]*\s*$"he=e-1  contains=tclLineContinue,tcltkWidget,tcltkWidgetSwitch,tclString,tcltkSwitch,tclNumber,tclVarRef

" This isn't contained (I don't think) so it's OK to just associate with the Color group.
" TODO: This could be wrong.
syn keyword tcltkWidgetColor	toplevel


syn region tcltkPackConf matchgroup=tcltkPackConfColor start="\<configure\>" matchgroup=NONE skip="^\s*$" end="]\|[^\\]*\s*$"he=e-1  contains=tclLineContinue,tcltkWidgetSwitch,tclString,tcltkSwitch,tcltkPackConfSwitch,tclNumber,tclVarRef keepend
syn region tcltkPackConf matchgroup=tcltkPackConfColor start="\<cget\>" matchgroup=NONE skip="^\s*$" end="]\|[^\\]*\s*$"me=e-1  contains=tclLineContinue,tcltkWidgetSwitch,tclString,tcltkSwitch,tcltkPackConfSwitch,tclNumber,tclVarRef


" NAMESPACE
" commands associated with namespace
syn keyword tcltkNamespaceSwitch contained children code current delete eval
syn keyword tcltkNamespaceSwitch contained export forget import inscope origin
syn keyword tcltkNamespaceSwitch contained parent qualifiers tail which command variable
syn region tcltkCommand matchgroup=tcltkCommandColor start="\<namespace\>" matchgroup=NONE skip="^\s*$" end="{\|}\|]\|\"\|[^\\]*\s*$"me=e-1  contains=tclLineContinue,tcltkNamespaceSwitch

" EXPR
" commands associated with expr
syn keyword tcltkMaths contained	abs acos asin atan atan2 bool ceil cos cosh double entier
syn keyword tcltkMaths contained	exp floor fmod hypot int isqrt log log10 max min pow rand
syn keyword tcltkMaths contained	round sin sinh sqrt srand tan tanh wide

syn region tcltkCommand matchgroup=tcltkCommandColor start="\<expr\>" matchgroup=NONE skip="^\s*$" end="]\|[^\\]*\s*$"me=e-1  contains=tclLineContinue,tcltkMaths,tclNumber,tclVarRef,tclString,tcltlWidgetSwitch,tcltkCommand,tcltkPackConf

" format
syn region tcltkCommand matchgroup=tcltkCommandColor start="\<format\>" matchgroup=NONE skip="^\s*$" end="]\|[^\\]*\s*$"me=e-1  contains=tclLineContinue,tcltkMaths,tclNumber,tclVarRef,tclString,tcltlWidgetSwitch,tcltkCommand,tcltkPackConf

" PACK
" commands associated with pack
syn keyword tcltkPackSwitch	contained	forget info propogate slaves
syn keyword tcltkPackConfSwitch	contained	after anchor before expand fill in ipadx ipady padx pady side
syn region tcltkCommand matchgroup=tcltkCommandColor start="\<pack\>" matchgroup=NONE skip="^\s*$" end="]\|[^\\]*\s*$"he=e-1  contains=tclLineContinue,tcltkPackSwitch,tcltkPackConf,tcltkPackConfSwitch,tclNumber,tclVarRef,tclString,tcltkCommand keepend

" STRING
" commands associated with string
syn keyword tcltkStringSwitch	contained	compare first index last length match range tolower toupper trim trimleft trimright wordstart wordend
syn region tcltkCommand matchgroup=tcltkCommandColor start="\<string\>" matchgroup=NONE skip="^\s*$" end="]\|[^\\]*\s*$"he=e-1  contains=tclLineContinue,tcltkStringSwitch,tclNumber,tclVarRef,tclString,tcltkCommand

" ARRAY
" commands associated with array
syn keyword tcltkArraySwitch	contained	anymore donesearch exists get names nextelement size startsearch set
" match from command name to ] or EOL
syn region tcltkCommand matchgroup=tcltkCommandColor start="\<array\>" matchgroup=NONE skip="^\s*$" end="]\|[^\\]*\s*$"he=e-1  contains=tclLineContinue,tcltkArraySwitch,tclNumber,tclVarRef,tclString,tcltkCommand

" LSORT
" switches for lsort
syn keyword tcltkLsortSwitch	contained	ascii dictionary integer real command increasing decreasing index
" match from command name to ] or EOL
syn region tcltkCommand matchgroup=tcltkCommandColor start="\<lsort\>" matchgroup=NONE skip="^\s*$" end="]\|[^\\]*\s*$"he=e-1  contains=tclLineContinue,tcltkLsortSwitch,tclNumber,tclVarRef,tclString,tcltkCommand

syn keyword tclTodo contained	TODO

" Sequences which are backslash-escaped: http://www.tcl.tk/man/tcl8.5/TclCmd/Tcl.htm#M16
" Octal, hexadecimal, unicode codepoints, and the classics.
" Tcl takes as many valid characters in a row as it can, so \xAZ in a string is newline followed by 'Z'.
syn match   tclSpecial contained '\\\([0-7]\{1,3}\|x\x\{1,2}\|u\x\{1,4}\|[abfnrtv]\)'
syn match   tclSpecial contained '\\[\[\]\{\}\"\$]'

" Command appearing inside another command or inside a string.
syn region tclEmbeddedStatement	start='\[' end='\]' contained contains=tclCommand,tclNumber,tclLineContinue,tclString,tclVarRef,tclEmbeddedStatement
" A string needs the skip argument as it may legitimately contain \".
" Match at start of line
syn region  tclString		  start=+^"+ end=+"+ contains=tclSpecial skip=+\\\\\|\\"+
"Match all other legal strings.
syn region  tclString		  start=+[^\\]"+ms=s+1  end=+"+ contains=tclSpecial,tclVarRef,tclEmbeddedStatement skip=+\\\\\|\\"+

" Line continuation is backslash immediately followed by newline.
syn match tclLineContinue '\\$'

if exists('g:tcl_warn_continuation')
    syn match tclNotLineContinue '\\\s\+$'
endif

"integer number, or floating point number without a dot and with "f".
syn case ignore
syn match  tclNumber		"\<\d\+\(u\=l\=\|lu\|f\)\>"
"floating point number, with dot, optional exponent
syn match  tclNumber		"\<\d\+\.\d*\(e[-+]\=\d\+\)\=[fl]\=\>"
"floating point number, starting with a dot, optional exponent
syn match  tclNumber		"\.\d\+\(e[-+]\=\d\+\)\=[fl]\=\>"
"floating point number, without dot, with exponent
syn match  tclNumber		"\<\d\+e[-+]\=\d\+[fl]\=\>"
"hex number
syn match  tclNumber		"0x[0-9a-f]\+\(u\=l\=\|lu\)\>"
"syn match  tclIdentifier	"\<[a-z_][a-z0-9_]*\>"
syn case match

syn region  tclComment		start="^\s*\#" skip="\\$" end="$" contains=tclTodo
syn region  tclComment		start=/;\s*\#/hs=s+1 skip="\\$" end="$" contains=tclTodo

"syn sync ccomment tclComment

" 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_tcl_syntax_inits")
  if version < 508
    let did_tcl_syntax_inits = 1
    command -nargs=+ HiLink hi link <args>
  else
    command -nargs=+ HiLink hi def link <args>
  endif

  HiLink tcltkSwitch		Special
  HiLink tclExpand		Special
  HiLink tclLabel		Label
  HiLink tclConditional		Conditional
  HiLink tclRepeat		Repeat
  HiLink tclNumber		Number
  HiLink tclError		Error
  HiLink tclCommand		Statement
  HiLink tclString		String
  HiLink tclComment		Comment
  HiLink tclSpecial		Special
  HiLink tclTodo		Todo
  " Below here are the commands and their options.
  HiLink tcltkCommandColor	Statement
  HiLink tcltkWidgetColor	Structure
  HiLink tclLineContinue	WarningMsg
if exists('g:tcl_warn_continuation')
  HiLink tclNotLineContinue	ErrorMsg
endif
  HiLink tcltkStringSwitch	Special
  HiLink tcltkArraySwitch	Special
  HiLink tcltkLsortSwitch	Special
  HiLink tcltkPackSwitch	Special
  HiLink tcltkPackConfSwitch	Special
  HiLink tcltkMaths		Special
  HiLink tcltkNamespaceSwitch	Special
  HiLink tcltkWidgetSwitch	Special
  HiLink tcltkPackConfColor	Identifier
  HiLink tclVarRef		Identifier

  delcommand HiLink
endif

let b:current_syntax = "tcl"

" vim: ts=8 noet