diff --git a/runtime/syntax/tcsh.vim b/runtime/syntax/tcsh.vim
new file mode 100644
index 0000000..29fbb2e
--- /dev/null
+++ b/runtime/syntax/tcsh.vim
@@ -0,0 +1,188 @@
+" Vim syntax file
+" Language:		C-shell (tcsh)
+" Maintainor:		Gautam Iyer <gautam@math.uchicago.edu>
+" Last Modified:	Mon 23 Feb 2004 02:28:51 PM CST
+"
+" Description: We break up each statement into a "command" and an "end" part.
+" All groups are either a "command" or part of the "end" of a statement (ie
+" everything after the "command"). This is because blindly highlighting tcsh
+" statements as keywords caused way too many false positives. Eg:
+"
+"	set history=200
+"
+" causes history to come up as a keyword, which we want to avoid.
+
+" Quit when a syntax file was already loaded
+if exists("b:current_syntax")
+  finish
+endif
+
+syn case match
+
+" ----- Clusters -----
+syn cluster tcshModifiers	contains=tcshModifier,tcshModifierError
+syn cluster tcshQuoteList	contains=tcshDQuote,tcshSQuote,tcshBQuote
+syn cluster tcshStatementEnds	contains=@tcshQuoteList,tcshComment,tcshUsrVar,TcshArgv,tcshSubst,tcshRedir,tcshMeta,tcshHereDoc,tcshSpecial,tcshArguement
+syn cluster tcshStatements	contains=tcshBuiltins,tcshCommands,tcshSet,tcshSetEnv,tcshAlias,tcshIf,tcshWhile
+syn cluster tcshVarList		contains=tcshUsrVar,tcshArgv,tcshSubst
+
+" ----- Statements -----
+" Tcsh commands: Any filename / modifiable variable (must be first!)
+syn match tcshCommands	'\v[a-zA-Z0-9\\./_$:-]+' contains=tcshSpecial,tcshUsrVar,tcshArgv,tcshVarError nextgroup=tcshStatementEnd
+
+" Builtin commands except (un)set(env), (un)alias, if, while, else
+syn keyword tcshBuiltins nextgroup=tcshStatementEnd alloc bg bindkey break breaksw builtins bye case cd chdir complete continue default dirs echo echotc end endif endsw eval exec exit fg filetest foreach getspath getxvers glob goto hashstat history hup inlib jobs kill limit log login logout ls ls-F migrate newgrp nice nohup notify onintr popd printenv pushd rehash repeat rootnode sched setpath setspath settc setty setxvers shift source stop suspend switch telltc time umask uncomplete unhash universe unlimit ver wait warp watchlog where which
+
+" StatementEnd is anything after a builtin / command till the lexical end of a
+" statement (;, |, ||, |&, && or end of line)
+syn region tcshStatementEnd	transparent contained matchgroup=tcshBuiltins start='' end='\v\\@<!(;|\|[|&]?|\&\&|$)' contains=@tcshStatementEnds
+
+" set expressions (Contains shell variables)
+syn keyword tcshShellVar contained afsuser ampm argv autocorrect autoexpand autolist autologout backslash_quote catalog cdpath color colorcat command complete continue continue_args correct cwd dextract dirsfile dirstack dspmbyte dunique echo echo_style edit ellipsis fignore filec gid group histchars histdup histfile histlit history home ignoreeof implicitcd inputmode killdup killring listflags listjobs listlinks listmax listmaxrows loginsh logout mail matchbeep nobeep noclobber noding noglob nokanji nonomatch nostat notify oid owd path printexitvalue prompt prompt2 prompt3 promptchars pushdtohome pushdsilent recexact recognize_only_executables rmstar rprompt savedirs savehist sched shell shlvl status symlinks tcsh term time tperiod tty uid user verbose version visiblebell watch who wordchars
+syn keyword tcshSet	nextgroup=tcshSetEnd set unset
+syn region  tcshSetEnd	contained transparent matchgroup=tcshBuiltins start='' skip="\\$" end="$\|;" contains=tcshShellVar,@tcshStatementEnds
+
+" setenv expressions (Contains enviorenment variables)
+syn keyword tcshEnvVar contained AFSUSER COLUMNS DISPLAY EDITOR GROUP HOME HOST HOSTTYPE HPATH LANG LC_CTYPE LINES LS_COLORS MACHTYPE NOREBIND OSTYPE PATH PWD REMOTEHOST SHLVL SYSTYPE TERM TERMCAP USER VENDOR VISUAL
+syn keyword tcshSetEnv	nextgroup=tcshEnvEnd setenv unsetenv
+syn region  tcshEnvEnd	contained transparent matchgroup=tcshBuiltins start='' skip="\\$" end="$\|;" contains=tcshEnvVar,@tcshStatementEnds
+
+" alias and unalias (contains special aliases)
+syn keyword tcshAliases contained beemcmd cwdcmd jobcmd helpcommand periodic precmd postcmd shell
+syn keyword tcshAlias	nextgroup=tcshAliEnd alias unalias
+syn region  tcshAliEnd	contained transparent matchgroup=tcshBuiltins start='' skip="\\$" end="$\|;" contains=tcshAliases,@tcshStatementEnds
+
+" if statements (contains expressions / operators)
+syn keyword tcshIf	nextgroup=tcshIfEnd if
+syn region  tcshIfEnd	contained matchgroup=tcshBuiltins start='' skip="\\$" end="\v<then>|$" contains=tcshOperator,tcshNumber,@tcshStatementEnds
+
+" else statements (nextgroup if)
+syn keyword tcshElse	nextgroup=tcshIf skipwhite else
+
+" while statements (contains expressions / operators)
+syn keyword tcshWhile	nextgroup=tcshWhEnd while
+syn region  tcshWhEnd	contained transparent matchgroup=tcshBuiltins start='' skip="\\$" end="\v$" contains=tcshOperator,tcshNumber,@tcshStatementEnds
+
+" Expressions start with @.
+syn match tcshExprStart "\v\@\s+" nextgroup=tcshExprVar
+syn match tcshExprVar	contained "\v\h\w*%(\[\d+\])?" contains=tcshShellVar,tcshEnvVar nextgroup=tcshExprOp
+syn match tcshExprOp	contained "++\|--"
+syn match tcshExprOp	contained "\v\s*\=" nextgroup=tcshExprEnd
+syn match tcshExprEnd	contained "\v.*$"hs=e+1 contains=tcshOperator,tcshNumber,@tcshVarList
+syn match tcshExprEnd	contained "\v.{-};"hs=e	contains=tcshOperator,tcshNumber,@tcshVarList
+
+" ----- Comments: -----
+syn match tcshComment	"#.*" contains=tcshTodo,tcshCommentTi,tcshCommentSp,@Spell
+syn match tcshSharpBang "^#! .*$"
+syn match tcshCommentTi contained '\v#\s*\u\w*(\s+\u\w*)*:'hs=s+1 contains=tcshTodo
+syn match tcshCommentSp contained '\v<\u{3,}>' contains=tcshTodo
+syn match tcshTodo	contained '\v\c<todo>'
+
+" ----- Strings -----
+" Tcsh does not allow \" in strings unless the "backslash_quote" shell
+" variable is set. Set the vim variable "tcsh_backslash_quote" to 0 if you
+" want VIM to assume that no backslash quote constructs exist.
+
+" Backquotes are treated as commands, and are not contained in anything
+if(exists("tcsh_backslash_quote") && tcsh_backslash_quote == 0)
+    syn region tcshSQuote	keepend contained start="\v\\@<!'" end="'" contains=@Spell
+    syn region tcshDQuote	keepend contained start='\v\\@<!"' end='"' contains=@tcshVarList,tcshSpecial,@Spell
+    syn region tcshBQuote	keepend start='\v\\@<!`' end='`' contains=@tcshStatements
+else
+    syn region tcshSQuote	contained start="\v\\@<!'" skip="\v\\\\|\\'" end="'" contains=@Spell
+    syn region tcshDQuote	contained start='\v\\@<!"' end='"' contains=@tcshVarList,tcshSpecial,@Spell
+    syn region tcshBQuote	keepend matchgroup=tcshBQuoteGrp start='\v\\@<!`' skip='\v\\\\|\\`' end='`' contains=@tcshStatements
+endif
+
+" ----- Variables -----
+" Variable Errors. Must come first! \$ constructs will be flagged by
+" tcshSpecial, so we don't consider them here.
+syn match tcshVarError	'\v\$\S*'	contained
+
+" Modifiable Variables without {}.
+syn match tcshUsrVar contained "\v\$\h\w*%(\[\d+%(-\d+)?\])?" nextgroup=@tcshModifiers contains=tcshShellVar,tcshEnvVar
+syn match tcshArgv   contained "\v\$%(\d+|\*)" nextgroup=@tcshModifiers
+
+" Modifiable Variables with {}.
+syn match tcshUsrVar contained "\v\$\{\h\w*%(\[\d+%(-\d+)?\])?%(:\S*)?\}" contains=@tcshModifiers,tcshShellVar,tcshEnvVar
+syn match tcshArgv   contained "\v\$\{%(\d+|\*)%(:\S*)?\}" contains=@tcshModifiers
+
+" UnModifiable Substitutions. Order is important here.
+syn match tcshSubst contained	"\v\$[?#$!_<]" nextgroup=tcshModifierError
+syn match tcshSubst contained	"\v\$[%#?]%(\h\w*|\d+)" nextgroup=tcshModifierError contains=tcshShellVar,tcshEnvVar
+syn match tcshSubst contained	"\v\$\{[%#?]%(\h\w*|\d+)%(:\S*)?\}" contains=tcshModifierError contains=tcshShellVar,tcshEnvVar
+
+" Variable Name Expansion Modifiers (order important)
+syn match tcshModifierError	contained '\v:\S*'
+syn match tcshModifier		contained '\v:[ag]?[htreuls&qx]' nextgroup=@tcshModifiers
+
+" ----- Operators / Specials -----
+" Standard redirects (except <<) [<, >, >>, >>&, >>!, >>&!]
+syn match tcshRedir contained	"\v\<|\>\>?\&?!?"
+
+" Metachars
+syn match tcshMeta  contained	"\v[]{}*?[]"
+
+" Here Documents (<<)
+syn region tcshHereDoc contained matchgroup=tcshRedir start="\v\<\<\s*\z(\h\w*)" end="^\z1$" contains=@tcshVarList,tcshSpecial
+syn region tcshHereDoc contained matchgroup=tcshRedir start="\v\<\<\s*'\z(\h\w*)'" start='\v\<\<\s*"\z(\h\w*)"$' start="\v\<\<\s*\\\z(\h\w*)$" end="^\z1$"
+
+" Operators
+syn match tcshOperator	contained "&&\|!\~\|!=\|<<\|<=\|==\|=\~\|>=\|>>\|\*\|\^\|\~\|||\|!\|%\|&\|+\|-\|/\|<\|>\||"
+syn match tcshOperator	contained "[(){}]"
+
+" Numbers
+syn match tcshNumber	contained "\v<-?\d+>"
+
+" Arguements
+syn match tcshArguement	contained "\v\s@<=-(\w|-)*"
+
+" Special charectors
+syn match tcshSpecial	contained "\v\\@<!\\(\d{3}|.)"
+
+" ----- Syncronising -----
+if exists("tcsh_minlines")
+    exec "syn sync minlines=" . tcsh_minlines
+else
+    syn sync minlines=15	" Except 'here' documents, nothing is long
+endif
+
+" Define highlighting of syntax groups
+hi def link tcshBuiltins	statement
+hi def link tcshShellVar	preproc
+hi def link tcshEnvVar		tcshShellVar
+hi def link tcshAliases		tcshShellVar
+hi def link tcshCommands	identifier
+hi def link tcshSet		tcshBuiltins
+hi def link tcshSetEnv		tcshBuiltins
+hi def link tcshAlias		tcshBuiltins
+hi def link tcshIf		tcshBuiltins
+hi def link tcshElse		tcshBuiltins
+hi def link tcshWhile		tcshBuiltins
+hi def link tcshExprStart	tcshBuiltins
+hi def link tcshExprVar		tcshUsrVar
+hi def link tcshExprOp		tcshOperator
+hi def link tcshExprEnd		tcshOperator
+hi def link tcshComment		comment
+hi def link tcshCommentTi	preproc
+hi def link tcshCommentSp	WarningMsg
+hi def link tcshSharpBang	preproc
+hi def link tcshTodo		todo
+hi def link tcshSQuote		constant
+hi def link tcshDQuote		tcshSQuote
+hi def link tcshBQuoteGrp	include
+hi def link tcshVarError	error
+hi def link tcshUsrVar		type
+hi def link tcshArgv		tcshUsrVar
+hi def link tcshSubst		tcshUsrVar
+hi def link tcshModifier	tcshArguement
+hi def link tcshModifierError	tcshVarError
+hi def link tcshMeta		tcshSubst
+hi def link tcshRedir		tcshOperator
+hi def link tcshHereDoc		tcshSQuote
+hi def link tcshOperator	operator
+hi def link tcshNumber		number
+hi def link tcshArguement	special
+hi def link tcshSpecial		specialchar
+
+let b:current_syntax = "tcsh"