diff --git a/runtime/syntax/readline.vim b/runtime/syntax/readline.vim
new file mode 100644
index 0000000..8f72048
--- /dev/null
+++ b/runtime/syntax/readline.vim
@@ -0,0 +1,152 @@
+" Vim syntax file
+" Language:	    readline configuration file
+" Maintainer:	    Nikolai Weibull <source@pcppopper.org>
+" URL:		    http://www.pcppopper.org/vim/syntax/pcp/readline/
+" Latest Revision:  2004-05-22
+" arch-tag:	    6d8e7da4-b39c-4bf7-8e6a-d9135f993457
+" Variables:
+"   readline_has_bash - if defined add support for bash specific
+"			settings/functions
+
+if version < 600
+  syntax clear
+elseif exists("b:current_syntax")
+  finish
+endif
+
+" Set iskeyword since we need `-' (and potentially others) in keywords.
+" For version 5.x: Set it globally
+" For version 6.x: Set it locally
+if version >= 600
+  command -nargs=1 SetIsk setlocal iskeyword=<args>
+else
+  command -nargs=1 SetIsk set iskeyword=<args>
+endif
+SetIsk 48-57,65-90,97-122,-
+delcommand SetIsk
+
+" comments
+syn region  readlineComment	display oneline matchgroup=readlineComment start="^\s*#" end="$" contains=readlineTodo
+
+" todo
+syn keyword readlineTodo	contained TODO FIXME XXX NOTE
+
+" strings (argh...not the way i want it, but fine..."
+syn match   readlineString	"^\s*[A-Za-z-]\+:"me=e-1 contains=readlineKeys
+syn region  readlineString	display oneline start=+"+ skip=+\\\\\|\\"+ end=+"+ contains=readlineKeysTwo
+
+" special key
+syn case ignore
+syn keyword readlineKeys	contained Control Meta Del Esc Escape LFD Newline Ret Return Rubout Space Spc Tab
+syn case match
+
+syn match   readlineKeysTwo	contained +\\\([CM]-\|[e\\"'abdfnrtv]\|\o\{3}\|x\x\{3}\)+
+
+" keymaps
+syn match   readlineKeymaps	contained "emacs\(-standard\|-meta\|-ctlx\)\="
+syn match   readlineKeymaps	contained "vi\(-move\|-command\|-insert\)\="
+
+" bell styles
+syn keyword readlineBellStyles	contained audible visible none
+
+" numbers
+syn match   readlineNumber	contained "\<\d\+\>"
+
+" booleans
+syn case ignore
+syn keyword readlineBoolean	contained on off
+syn case match
+
+" conditionals
+syn keyword readlineIfOps	contained mode term
+
+syn region  readlineConditional display oneline transparent matchgroup=readlineConditional start="^\s*$if" end="$" contains=readlineIfOps,readlineKeymaps
+syn match   readlineConditional	"^\s*$\(else\|endif\)\>"
+
+" include
+syn match   readlineInclude	"^\s*$include\>"
+
+" settings
+
+syn region  readlineSet		display oneline transparent matchgroup=readlineKeyword start="^\s*set\>" end="$"me=e-1 contains=readlineNumber,readlineBoolean,readlineKeymaps,readlineBellStyles,readlineSettings
+
+syn keyword readlineSettings	contained bell-style comment-begin completion-ignore-case
+syn keyword readlineSettings	contained completion-query-items convert-meta disable-completion editing-mode enable-keypad
+syn keyword readlineSettings	contained expand-tilde horizontal-scroll-mode mark-directories keymap mark-modified-lines meta-flag
+syn keyword readlineSettings	contained input-meta output-meta print-completions-horizontally show-all-if-ambiguous visible-stats
+syn keyword readlineSettings	contained prefer-visible-bell blink-matching-paren
+syn keyword readlineSettings	contained match-hidden-files history-preserve-point isearch-terminators
+
+" bash extensions
+if exists("readline_has_bash")
+  "syn keyword readlineSettings	contained
+endif
+
+" key bindings
+syn region  readlineBinding	display oneline transparent matchgroup=readlineKeyword start=":" end="$" contains=readlineKeys,readlineFunctions
+
+syn match   readlineFunctions	contained "\<\(beginning\|end\)-of-line\>"
+syn match   readlineFunctions	contained "\<\(backward\|forward\)-\(char\|word\)\>"
+syn match   readlineFunctions	contained "\<\(previous\|next\|\(beginning\|end\)-of\|\(non-incremental-\)\=\(reverse\|forward\)-search\)-history\>"
+syn match   readlineFunctions	contained "\<history-search-\(forward\|backward\)\>"
+syn match   readlineFunctions	contained "\<yank-\(nth\|last\)-arg\>"
+syn match   readlineFunctions	contained "\<\(backward-\)\=kill-\(\(whole-\)\=line\|word\)\>"
+syn match   readlineFunctions	contained "\<\(start\|end\|call-last\)-kbd-macro\>"
+syn match   readlineFunctions	contained "\<dump-\(functions\|variables\|macros\)\>"
+syn match   readlineFunctions	contained "\<non-incremental-\(reverse\|forward\)-search-history-again\>"
+syn keyword readlineFunctions	contained clear-screen redraw-current-line accept-line delete-char backward-delete-char quoted-insert tab-insert
+syn keyword readlineFunctions	contained self-insert transpose-chars transpose-words downcase-word capitalize-word unix-word-rubout
+syn keyword readlineFunctions	contained delete-horizontal-space kill-region copy-region-as-kill copy-backward-word copy-forward-word yank yank-pop
+syn keyword readlineFunctions	contained digit-argument universal-argument complete possible-completions insert-completions menu-complete
+syn keyword readlineFunctions	contained re-read-init-file abort do-uppercase-version prefix-meta undo revert-line tilde-expand set-mark
+syn keyword readlineFunctions	contained exchange-point-and-mark character-search character-search-backward insert-comment emacs-editing-mode vi-editing-mode
+syn keyword readlineFunctions	contained unix-line-discard upcase-word backward-delete-word vi-eof-maybe vi-movement-mode vi-match vi-tilde-expand
+syn keyword readlineFunctions	contained vi-complete vi-char-search vi-redo vi-search vi-arg-digit vi-append-eol vi-prev-word vi-change-to vi-delete-to
+syn keyword readlineFunctions	contained vi-end-word vi-fetch-history vi-insert-beg vi-search-again vi-put vi-replace vi-subst vi-yank-to vi-first-print
+syn keyword readlineFunctions	contained vi-yank-arg vi-goto-mark vi-append-mode vi-insertion-mode prev-history vi-set-mark vi-search-again vi-put vi-change-char
+syn keyword readlineFunctions	contained vi-subst vi-delete vi-yank-to vi-column vi-change-case vi-overstrike vi-overstrike-delete
+syn keyword readlineFunctions	contained do-lowercase-version delete-char-or-list tty-status arrow-key-prefix
+syn keyword readlineFunctions	contained vi-back-to-indent vi-bword vi-bWord vi-eword vi-eWord vi-fword vi-fWord vi-next-word
+
+" bash extensions
+if exists("readline_has_bash")
+  syn keyword readlineFunctions	contained shell-expand-line history-expand-line magic-space alias-expand-line history-and-alias-expand-line insert-last-argument
+  syn keyword readlineFunctions	contained operate-and-get-next forward-backward-delete-char delete-char-or-list complete-filename possible-filename-completions
+  syn keyword readlineFunctions	contained complete-username possible-username-completions complete-variable possible-variable-completions complete-hostname
+  syn keyword readlineFunctions	contained possible-hostname-completions complete-command possible-command-completions dynamic-complete-history complete-into-braces
+  syn keyword readlineFunctions	contained glob-expand-word glob-list-expansions display-shell-version
+  syn keyword readlineFunctions	contained glob-complete-word edit-and-execute-command
+endif
+
+" 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_readline_syn_inits")
+  if version < 508
+    let did_readline_syn_inits = 1
+    command -nargs=+ HiLink hi link <args>
+  else
+    command -nargs=+ HiLink hi def link <args>
+  endif
+
+  HiLink readlineComment	Comment
+  HiLink readlineTodo		Todo
+  HiLink readlineString		String
+  HiLink readlineKeys		SpecialChar
+  HiLink readlineKeysTwo	SpecialChar
+  HiLink readlineKeymaps	Constant
+  HiLink readlineBellStyles	Constant
+  HiLink readlineNumber		Number
+  HiLink readlineBoolean	Boolean
+  HiLink readlineIfOps		Type
+  HiLink readlineConditional	Conditional
+  HiLink readlineInclude	Include
+  HiLink readlineKeyword	Keyword
+  HiLink readlineSettings	Type
+  HiLink readlineFunctions	Type
+  delcommand HiLink
+endif
+
+let b:current_syntax = "readline"
+
+" vim: set sts=2 sw=2: