new file mode 100644
--- /dev/null
+++ b/runtime/syntax/cterm.vim
@@ -0,0 +1,190 @@
+" Vim syntax file
+" Language:	Century Term Command Script
+" Maintainer:	Sean M. McKee <mckee@misslink.net>
+" Last Change:	2002 Apr 13
+" Version Info: @(#)cterm.vim	1.7	97/12/15 09:23:14
+
+" 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 ignore
+
+"FUNCTIONS
+syn keyword ctermFunction	abort addcr addlf answer at attr batch baud
+syn keyword ctermFunction	break call capture cd cdelay charset cls color
+syn keyword ctermFunction	combase config commect copy cread
+syn keyword ctermFunction	creadint devprefix dialer dialog dimint
+syn keyword ctermFunction	dimlog dimstr display dtimeout dwait edit
+syn keyword ctermFunction	editor emulate erase escloop fcreate
+syn keyword ctermFunction	fflush fillchar flags flush fopen fread
+syn keyword ctermFunction	freadln fseek fwrite fwriteln get hangup
+syn keyword ctermFunction	help hiwait htime ignore init itime
+syn keyword ctermFunction	keyboard lchar ldelay learn lockfile
+syn keyword ctermFunction	locktime log login logout lowait
+syn keyword ctermFunction	lsend ltime memlist menu mkdir mode
+syn keyword ctermFunction	modem netdialog netport noerror pages parity
+syn keyword ctermFunction	pause portlist printer protocol quit rcv
+syn keyword ctermFunction	read readint readn redial release
+syn keyword ctermFunction	remote rename restart retries return
+syn keyword ctermFunction	rmdir rtime run runx scrollback send
+syn keyword ctermFunction	session set setcap setcolor setkey
+syn keyword ctermFunction	setsym setvar startserver status
+syn keyword ctermFunction	stime stopbits stopserver tdelay
+syn keyword ctermFunction	terminal time trans type usend version
+syn keyword ctermFunction	vi vidblink vidcard vidout vidunder wait
+syn keyword ctermFunction	wildsize wclose wopen wordlen wru wruchar
+syn keyword ctermFunction	xfer xmit xprot
+syn match ctermFunction		"?"
+"syn keyword ctermFunction	comment remark
+
+"END FUNCTIONS
+"INTEGER FUNCTIONS
+syn keyword ctermIntFunction	asc atod eval filedate filemode filesize ftell
+syn keyword ctermIntFunction	len termbits opsys pos sum time val mdmstat
+"END INTEGER FUNCTIONS
+
+"STRING FUNCTIONS
+syn keyword ctermStrFunction	cdate ctime chr chrdy chrin comin getenv
+syn keyword ctermStrFunction	gethomedir left midstr right str tolower
+syn keyword ctermStrFunction	toupper uniq comst exists feof hascolor
+
+"END STRING FUNCTIONS
+
+"PREDEFINED TERM VARIABLES R/W
+syn keyword ctermPreVarRW	f _escloop _filename _kermiteol _obufsiz
+syn keyword ctermPreVarRW	_port _rcvsync _cbaud _reval _turnchar
+syn keyword ctermPreVarRW	_txblksiz _txwindow _vmin _vtime _cparity
+syn keyword ctermPreVarRW	_cnumber false t true _cwordlen _cstopbits
+syn keyword ctermPreVarRW	_cmode _cemulate _cxprot _clogin _clogout
+syn keyword ctermPreVarRW	_cstartsrv _cstopsrv _ccmdfile _cwru
+syn keyword ctermPreVarRW	_cprotocol _captfile _cremark _combufsiz
+syn keyword ctermPreVarRW	logfile
+"END PREDEFINED TERM VARIABLES R/W
+
+"PREDEFINED TERM VARIABLES R/O
+syn keyword ctermPreVarRO	_1 _2 _3 _4 _5 _6 _7 _8 _9 _cursess
+syn keyword ctermPreVarRO	_lockfile _baud _errno _retval _sernum
+syn keyword ctermPreVarRO	_timeout _row _col _version
+"END PREDEFINED TERM VARIABLES R/O
+
+syn keyword ctermOperator not mod eq ne gt le lt ge xor and or shr not shl
+
+"SYMBOLS
+syn match   CtermSymbols	 "|"
+"syn keyword ctermOperators + - * / % = != > < >= <= & | ^ ! << >>
+"END SYMBOLS
+
+"STATEMENT
+syn keyword ctermStatement	off
+syn keyword ctermStatement	disk overwrite append spool none
+syn keyword ctermStatement	echo view wrap
+"END STATEMENT
+
+"TYPE
+"syn keyword ctermType
+"END TYPE
+
+"USERLIB FUNCTIONS
+"syn keyword ctermLibFunc
+"END USERLIB FUNCTIONS
+
+"LABEL
+syn keyword ctermLabel    case default
+"END LABEL
+
+"CONDITIONAL
+syn keyword ctermConditional on endon
+syn keyword ctermConditional proc endproc
+syn keyword ctermConditional for in do endfor
+syn keyword ctermConditional if else elseif endif iferror
+syn keyword ctermConditional switch endswitch
+syn keyword ctermConditional repeat until
+"END CONDITIONAL
+
+"REPEAT
+syn keyword ctermRepeat    while
+"END REPEAT
+
+" Function arguments (eg $1 $2 $3)
+syn match  ctermFuncArg	"\$[1-9]"
+
+syn keyword ctermTodo contained TODO
+
+syn match  ctermNumber		"\<\d\+\(u\=l\=\|lu\|f\)\>"
+"floating point number, with dot, optional exponent
+syn match  ctermNumber		"\<\d\+\.\d*\(e[-+]\=\d\+\)\=[fl]\=\>"
+"floating point number, starting with a dot, optional exponent
+syn match  ctermNumber		"\.\d\+\(e[-+]\=\d\+\)\=[fl]\=\>"
+"floating point number, without dot, with exponent
+syn match  ctermNumber		"\<\d\+e[-+]\=\d\+[fl]\=\>"
+"hex number
+syn match  ctermNumber		"0x[0-9a-f]\+\(u\=l\=\|lu\)\>"
+
+syn match  ctermComment		"![^=].*$" contains=ctermTodo
+syn match  ctermComment		"!$"
+syn match  ctermComment		"\*.*$" contains=ctermTodo
+syn region  ctermComment	start="comment" end="$" contains=ctermTodo
+syn region  ctermComment	start="remark" end="$" contains=ctermTodo
+
+syn region ctermVar		start="\$("  end=")"
+
+" String and Character contstants
+" Highlight special characters (those which have a backslash) differently
+syn match   ctermSpecial		contained "\\\d\d\d\|\\."
+syn match   ctermSpecial		contained "\^."
+syn region  ctermString			start=+"+  skip=+\\\\\|\\"+  end=+"+  contains=ctermSpecial,ctermVar,ctermSymbols
+syn match   ctermCharacter		"'[^\\]'"
+syn match   ctermSpecialCharacter	"'\\.'"
+
+" 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_cterm_syntax_inits")
+  if version < 508
+    let did_cterm_syntax_inits = 1
+    command -nargs=+ HiLink hi link <args>
+  else
+    command -nargs=+ HiLink hi def link <args>
+  endif
+
+	HiLink ctermStatement		Statement
+	HiLink ctermFunction		Statement
+	HiLink ctermStrFunction	Statement
+	HiLink ctermIntFunction	Statement
+	HiLink ctermLabel		Statement
+	HiLink ctermConditional	Statement
+	HiLink ctermRepeat		Statement
+	HiLink ctermLibFunc		UserDefFunc
+	HiLink ctermType		Type
+	HiLink ctermFuncArg		PreCondit
+
+	HiLink ctermPreVarRO		PreCondit
+	HiLink ctermPreVarRW		PreConditBold
+	HiLink ctermVar		Type
+
+	HiLink ctermComment		Comment
+
+	HiLink ctermCharacter		SpecialChar
+	HiLink ctermSpecial		Special
+	HiLink ctermSpecialCharacter	SpecialChar
+	HiLink ctermSymbols		Special
+	HiLink ctermString		String
+	HiLink ctermTodo		Todo
+	HiLink ctermOperator		Statement
+	HiLink ctermNumber		Number
+
+	" redefine the colors
+	"hi PreConditBold	term=bold ctermfg=1 cterm=bold guifg=Purple gui=bold
+	"hi Special	term=bold ctermfg=6 guifg=SlateBlue gui=underline
+
+	delcommand HiLink
+endif
+
+let b:current_syntax = "cterm"
+
+" vim: ts=8