" Vim syntax file
" Language:	TCL/TK
" Maintainer:	Allan Kelly <Allan.Kelly@ed.ac.uk>
" Original:	Robin Becker <robin@jessikat.demon.co.uk>
" Version:      5.1(synched), 1998 April 1
" 
" Keywords TODO: format clock click anchor

" Remove any old syntax stuff hanging around
syn clear
set comments=:#
" A bunch of useful keywords
syn keyword tclStatement	proc global return lindex 
syn keyword tclStatement	llength lappend lreplace lrange list concat incr 
syn keyword tclStatement	upvar set
syn keyword tclLabel		case default
syn keyword tclConditional	if then else elseif switch
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
syn match tclVarRef "$[a-zA-Z][a-zA-Z1-9_.]*"
syn match tclVarRef "${[a-zA-Z][a-zA-Z1-9_.]*}"
" 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 entryget 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 "-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	acos	cos	hypot	sinh
syn keyword tcltkMaths	contained	asin	cosh	log	sqrt
syn keyword tcltkMaths	contained	atan	exp	log10	tan
syn keyword tcltkMaths	contained	atan2	floor	pow	tanh
syn keyword tcltkMaths	contained	ceil	fmod	sin
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


" String and Character contstants
" Highlight special characters (those which have a backslash) differently
syn match   tclSpecial contained "\\\d\d\d\=\|\\."
" 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 skip=+\\\\\|\\"+

syn match   tclLineContinue "\\\s*$"

"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="^[ 	]*\#" end="$" contains=tclTodo

"syn sync ccomment tclComment

if !exists("did_tcl_syntax_inits")
  let did_tcl_syntax_inits = 1
  " The default methods for highlighting.  Can be overridden later
  hi link tcltkSwitch		Special
  hi link tclLabel		Label
  hi link tclConditional	Conditional
  hi link tclRepeat		Repeat
  hi link tclNumber		Number
  hi link tclError		Error
  hi link tclStatement		Statement
  " hi link tclStatementColor	Statement
  hi link tclString		String
  hi link tclComment		Comment
  hi link tclSpecial		Special
  hi link tclTodo		Todo
  " Below here are the commands and their options.
  hi link tcltkCommandColor	Statement
  hi link tcltkWidgetColor      Structure
  hi link tclLineContinue       WarningMsg
  hi link tcltkStringSwitch	Special
  hi link tcltkArraySwitch	Special
  hi link tcltkLsortSwitch	Special
  hi link tcltkPackSwitch	Special
  hi link tcltkPackConfSwitch	Special
  hi link tcltkMaths		Special
  hi link tcltkNamespaceSwitch	Special
  hi link tcltkWidgetSwitch	Special
  hi link tcltkPackConfColor	Identifier
  "hi link tcltkLsort		Statement
  hi link tclVarRef             Identifier
endif

let b:current_syntax = "tcl"

" vim: ts=8
