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+;; hilit19.el, Beta 1.9 -- customizable highlighting for Emacs19.
+;; Copyright (c) 1993 Free Software Foundation, Inc.
+;;
+;; Author:  Jonathan Stigelman <Stig@netcom.com>
+;; Keywords: faces
+;; 
+;; This program is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation; either version 2 of the License, or
+;; (at your option) any later version.
+;; 
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+;; 
+;; You should have received a copy of the GNU General Public License
+;; along with this program; if not, write to the Free Software
+;; Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+;;
+
+;;; Commentary:
+
+;; hilit19.el, Beta 1.9 -- customizable highlighting for Emacs19.
+;; Supports not only source code highlighting, but also rmail, VM, and gnus.
+
+;; WHERE TO GET THE LATEST VERSION OF HILIT19.EL (possibly beta), 
+;; PLUS LOTS OF OTHER *WAY COOL* STUFF VIA ANONYMOUS FTP:
+;;
+;;      netcom.com:/pub/stig/src/hilit19.el.gz
+;;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;
+;; TO SUBMIT BUG REPORTS (or feedback of any sort)...
+;;
+;;    M-x hilit-submit-feedback RET
+;;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;
+;; $Id: hilit19.el,v 1.34 1993/07/23 05:18:37 stig Exp stig $
+;;
+;; LCD Archive Entry:
+;; emacs19/hilit19.el|Jonathan Stigelman|Stig@netcom.com
+;; |Comprehensive (and comparatively fast) regex-based highlighting for Emacs 19
+;; Thu Jul 22 21:03:46 1993|Beta 1.9||
+;;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;
+;; GENERAL OVERVIEW
+;;
+;;      This package installs numerous hooks to colorfully highlight your
+;;      source code buffers as well as mail and news buffers.  Most 
+;;      programming languages have predefined highlighting patterns.
+;;      Just load hilit19 and files will be automatically highlighted as
+;;      they're loaded.
+;;
+;;      Rehighlight a buffer by typing C-S-l (control-shift-lowercase-L).
+;;
+;;      If, when you edit the buffer, the coloring gets messed up, just
+;;      redraw and the coloring will be adjusted.  If automatic highlighting
+;;      in the current buffer has been turned off, then typing C-u C-S-l will
+;;      force a rehighlight of the entire buffer.
+;;
+;;      Hilit19 can build faces by examining the names that you give to them
+;;      For example, green/black-bold-italic-underline would be created as
+;;      a face with a green foreground, and a black background, using a 
+;;      bold-italic font...with underlining for good measure.
+;;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;
+;; SETUP -- In your .emacs:
+;;
+;;      (require 'hilit19)              ; not intended to be autoloaded
+;;
+;;      (setq hilit-mode-enable-list '(not text-mode))
+;;
+;;      (hilit-translate type     'RoyalBlue   ; enable highlighting in C/C++
+;;                       string   nil)         ; disable string highlighting
+;;
+;; To get 100% of the utility of hilit19, you may also have to apply the
+;; patches below for info.el and vm5.33L_19/vm-summary.el
+;;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;
+;; SETUP -- Are you using the right font for Emacs?
+;;
+;; Emacs cannot properly find bold and italic fonts unless you specify a
+;; verbose X11 font name.  Here's a good font menu:
+;;
+;; (setq
+;;  x-fixed-font-alist
+;;  '("Font Menu"
+;;    ("Fonts"
+;;     ("6x12" "-misc-fixed-medium-r-semicondensed--12-110-75-75-c-60-*-1")
+;;     ("6x13" "-misc-fixed-medium-r-semicondensed--13-120-75-75-c-60-*-1")
+;;     ("lucida 13"
+;;      "-b&h-lucidatypewriter-medium-r-normal-sans-0-0-0-0-m-0-*-1")
+;;     ("7x13" "-misc-fixed-medium-r-normal--13-120-75-75-c-70-*-1")
+;;     ("7x14" "-misc-fixed-medium-r-normal--14-130-75-75-c-70-*-1")
+;;     ("9x15" "-misc-fixed-medium-r-normal--15-140-*-*-c-*-*-1")
+;;     ("")
+;;     ("clean 8x8" "-schumacher-clean-medium-r-normal--*-80-*-*-c-*-*-1")
+;;     ("clean 8x14" "-schumacher-clean-medium-r-normal--*-140-*-*-c-*-*-1")
+;;     ("clean 8x10" "-schumacher-clean-medium-r-normal--*-100-*-*-c-*-*-1")
+;;     ("clean 8x16" "-schumacher-clean-medium-r-normal--*-160-*-*-c-*-*-1")
+;;     ("")
+;;     ("sony 8x16" "-sony-fixed-medium-r-normal--16-120-100-100-c-80-*-1")
+;;     ("")
+;;     ("-- Courier --")
+;;     ("Courier 10" "-adobe-courier-medium-r-normal--*-100-*-*-m-*-*-1")
+;;     ("Courier 12" "-adobe-courier-medium-r-normal--*-120-*-*-m-*-*-1")
+;;     ("Courier 14" "-adobe-courier-medium-r-normal--*-140-*-*-m-*-*-1")
+;;     ("Courier 18" "-adobe-courier-medium-r-normal--*-180-*-*-m-*-*-1")
+;;     ("Courier 18-b" "-adobe-courier-bold-r-normal--*-180-*-*-m-*-*-1")
+;;     )))
+;;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;
+;; KNOWN BUGS/TO DO LIST/HELP WANTED/APPLY WITHIN
+;;
+;; * unbalanced double quote characters can confuse hilit19.  This will be
+;;   fixed, so don't bug me about it.
+;;
+;; * ALTHOUGH HILIT19 IS FASTER THAN FONT-LOCK-MODE, for various reasons,
+;;   the speed of the package could still stand to be improved.  If you care
+;;   to do a little profiling and make things tighter...
+;;
+;; * hilit-toggle-highlight is flaky in large buffers where auto-rehighlight
+;;   is numeric after toggling twice, it loses it's numeric value
+;;
+;; PROJECTS THAT YOU CAN TAKE OVER BECAUSE I DON'T MUCH CARE ABOUT THEM...
+;;
+;; * Moved hilit-wysiwyg-replace here from my version of man.el, this is not
+;;   a bug.  The bug is that I don't have a reverse operation yet...just a
+;;   stub Wysiwyg-anything really belongs in a package of it's own.
+;;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;
+;; Thanks to the following people for their input:
+;;      ebert@enpc.enpc.fr (Rolf EBERT), ada, LaTeX & bibtex highlights
+;;      Vivek Khera <khera@cs.duke.edu>, gnus hooks + random advice & patches
+;;      brian@athe.WUstl.EDU (Brian Dunford-Shore), prolog highlights
+;;      John Ladwig <jladwig@soils.umn.edu>, 1st pass nroff highlights
+;;      campo@sunthpi3.difi.unipi.it (Massimo Campostrini), fortran highlights
+;;      jayb@laplace.MATH.ColoState.EDU (Jay Bourland), 1st pass dired
+;;      Yoshio Turner <yoshio@CS.UCLA.EDU>, modula 2 highlights
+;;      Fritz Knabe <knabe@ecrc.de>, advice & patches
+;;      Alon Albert <alon@milcse.rtsg.mot.com>, advice & patches
+;;      dana@thumper.bellcore.com (Dana A. Chee), for breaking it...
+;;      derway@ndc.com (Don Erway), for breaking it...
+;;
+;; With suggestions and minor regex patches from numerous others...
+;;
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;
+;; HISTORY 
+;;
+;; V1.9  21-July-1993           Stig@netcom.com
+;;   better documentation and added the function hilit-submit-feedback.
+;;   no longer rebind ^L, now C-S-l (control shift l) repaints the buffer
+;;   multi-line highlights no longer cause problems when
+;;      hilit-auto-rehighlight is 'visible
+;;   added hilit-predefined-face-list...
+;;   changed name of hilit-mode-alist to hilit-patterns-alist
+;;   added hilit-message-quietly to mail-setup-hook
+;;   added hilit-parser-alist which can be used to apply different patterns to
+;;      different parts of a buffer.  This could be integrated in a far more
+;;      elegant manner, but it presently serves the purpose of not applying
+;;      message header patterns to message bodies in mail-mode and it's kin.
+;;   hilit-set-mode-patterns now takes a list of modes and an optional parse-fn
+;; V1.8  19-July-1993           Stig@netcom.com
+;;   changed hilit-translate to be a macro so that now it mirrors setq
+;;   now permit multiple layers of face-translation...
+;;   hilit-lookup-face-create now parses background colors
+;;   added code to check for face changes and recopy the fonts from 'default
+;;      when necessary.  this can be disabled if you never change fonts.
+;;      you should be able to change fonts, redraw, and have all of your
+;;      bold & italic faces back to normal.  Should work in new frames as well.
+;;   fixed typo for one of the vm hooks and included the magic patch to
+;;      vm5.33 that keeps the summary window up to date.
+;;   got rid of the annoying dings and delays when colors aren't available
+;;   set case-fold-search to nil in highlighting-region function
+;;   fixed minor bug in hilit-rehighlight-message-quietly
+;;   patches to Info, LaTeX, fortran, nroff, & c++ patterns
+;;   modula-2-mode support
+;;   improved gnus-mark-article-hook
+;;   moved timecard-mode highlights to timecard-mode itself
+;; V1.7  12-July-1993           Stig@netcom.com
+;;   fix to dired patterns
+;;   punted on the dual functionality in hilit-auto-highlight and added
+;;     hilit-mode-enable-list, which permits users to specifically lock out
+;;     modes by preventing them from being added into the hilit-mode-list
+;;   incorporated defaults for dark backgrounds (see hilit-background-mode)
+;;   incorporated fortran highlighting patterns
+;;   patches to ada-mode and msg-header regexes
+;;   added msg-separator pattern
+;;   changed dired-backup to dired ignored which (which is derived from the
+;;     variable completion-ignored-extensions)
+;; V1.6  5-July-1993            Stig@netcom.com
+;;   added dired patterns
+;;   fixed minor typo bug in mail patterns
+;;   added profiling hook
+;; V1.5  5-July-1993            Stig@netcom.com
+;;   changed behavior of hilit-recenter to more closely match that of recenter
+;;   hilit-auto-highlight can now be a list of major-modes to highlight on find
+;;   reverted to using overlays...the cost of text-properties is too high, IMHO
+;;   added 'visible option to hilit-auto-rehighlight variable
+;;   now highlighting support for info pages (see patch below)
+;;   added hilit-yank and hilit-yank-pop which replace their analogues
+;;   wrote special parsing function for strings...bug squished...faster too
+;;   tuned the texinfo patterns for better performance
+;;   nroff support
+;; V1.4  2-July-1993            Stig@netcom.com
+;;   more efficient highlighting for news and mail
+;;   switched to text properties (this may be temporary)
+;;   changed regular expressions for c*mode to accomodate syntax tables
+;;   minor mod to Ada parameter regexp
+;;   now catch regex stack overflows and print an error
+;;   string matching now uses start and end expressions to prevent overflows
+;; V1.3 28-June-1993            Stig@netcom.com
+;;   added support for hexadecimal color specification under X
+;;   added hilit-translate for simple color translations
+;;   changed coverage of hilit-quietly...when it's quiet, it's always quiet.
+;;   removed extra call to unhighlight-region in rehighlight-buffer
+;;   automatically installs hooks, unless hilit-inhibit-hooks set before load
+;;   installed fixes for latex
+;; V1.2 28-June-1993            Stig@netcom.com
+;;   partially fixed bug in hilit-toggle-highlight
+;;   added string highlighting
+;;   fixed bug in hilit-lookup-face-create
+;;   additions for Ada, Tex, LaTeX, and Texinfo (is scribe next? =)
+;;   now highlight template decls in C++
+;;   added reverse-* intelligence to hilit-lookup-face-create
+;;   imported wysiwyg (overstrike replacement) stuff from my hacks to man.el
+;;   sketched out a stub of a wysiwyg write file hook, care to finish it?
+;; V1.1 25-June-1993            Stig@netcom.com
+;;   replaced last vestiges of original hilit.el
+;;   now map default modes to major-mode values
+;;   reworked face allocation so that colors don't get tied up
+;;   rewrote some comments that I'd put in earlier but somehow managed to nuke
+;; V1.0 22-June-1993            Stig@netcom.com
+;;   incrementally replaced just about everything...simpler, cleaner, & faster
+;;   extended highlight coverage for C/C++ modes (highlight more things)
+;;   added layer of indirection to face selection
+
+;;;;;; THIS WILL ALLOW INFO PAGES TO BE HILIGHTED:
+;;
+;; *** 19.15/info.el       Sat Jun 19 14:47:06 1993
+;; --- 19/info.el  Sun Jul  4 03:33:12 1993
+;; ***************
+;; *** 475,481 ****
+;;                                   (setq active-expression
+;;                                         (read (current-buffer))))))
+;;                          (point-max)))
+;; !      (if Info-enable-active-nodes (eval active-expression)))))
+;;   
+;;   (defun Info-set-mode-line ()
+;;     (setq mode-line-buffer-identification
+;; --- 475,482 ----
+;;                                   (setq active-expression
+;;                                         (read (current-buffer))))))
+;;                          (point-max)))
+;; !      (if Info-enable-active-nodes (eval active-expression)))
+;; !    (run-hooks 'Info-select-hook)))
+;;   
+;;   (defun Info-set-mode-line ()
+;;     (setq mode-line-buffer-identification
+;;
+;;;;;; AND THIS CAN BE APPLIED TO VM 5.33L_19
+;; 
+;; *** ../site/vm5.33L_19/vm-summary.el    Fri Jun  4 22:17:11 1993
+;; --- ./vm-summary.el     Tue Jun 22 16:39:30 1993
+;; ***************
+;; *** 152,158 ****
+;;                   (insert "->")
+;;                   (delete-char 2)
+;;                   (forward-char -2)
+;; !                 (and w vm-auto-center-summary (vm-auto-center-summary))))
+;;             (and old-window (select-window old-window)))))))
+;;   
+;;   (defun vm-mark-for-display-update (message)
+;; --- 152,159 ----
+;;                   (insert "->")
+;;                   (delete-char 2)
+;;                   (forward-char -2)
+;; !                 (and w vm-auto-center-summary (vm-auto-center-summary))
+;; !                 (run-hooks 'vm-summary-pointer-hook)))
+;;             (and old-window (select-window old-window)))))))
+;;   
+;;   (defun vm-mark-for-display-update (message)
+;; 
+;;;;;;
+
+
+;; User Options:
+
+(defvar hilit-quietly nil
+  "* If non-nil, this inhibits progress indicators during highlighting")
+
+(defvar hilit-inhibit-hooks nil
+  "* If non-nil, this inhibits installation of hooks for Info, gnus, & vm.")
+
+(defvar hilit-background-mode 'light
+  "* 'mono inhibits color, 'dark or 'light indicate the background brightness.")
+
+(defvar hilit-mode-enable-list nil
+  "* If a list of modes to exclusively enable or specifically disable.
+The sense of the list is negated if it begins with the symbol 'not'.
+Set this variable before you load hilit19.
+
+Ex:  (perl-mode jargon-mode c-mode)     ; just perl, C, and jargon modes
+     (not text-mode)                    ; all modes except text mode")
+
+(defvar hilit-auto-highlight t
+  "* T if we should highlight all buffers as we find 'em, nil to disable
+  automatic highlighting by the find-file hook.")
+
+(defvar hilit-auto-highlight-maxout 57000
+  "* auto-highlight is disabled in buffers larger than this")
+
+(defvar hilit-auto-rehighlight t
+  "* If this is non-nil, then hilit-redraw and hilit-recenter will also
+  rehighlight part or all of the current buffer.  T will rehighlights the
+  whole buffer, a NUMBER will rehighlight that many lines before and
+  after the cursor, or the symbol 'visible' will rehighlight only the visible
+  portion of the current buffer.")
+
+(make-variable-buffer-local 'hilit-auto-rehighlight)
+(setq-default hilit-auto-rehighlight t)
+
+(defvar hilit-auto-rehighlight-fallback '(20000 . 100)
+  "* Cons of the form (THRESHOLD . FALLBACK), where FALLBACK is assigned to
+hilit-auto-rehighlight if the size of a newly opened buffer is larger than
+THRESHOLD.")
+
+(defvar hilit-face-check t
+  "* T slows down highlighting but permits the user to change fonts without
+losing bold and italic faces...  T causes hilit-lookup-face-create to dig
+through the frame parameters for the current window every time it's called.
+If you never change fonts in emacs, set this to NIL.")
+
+;; Variables that are not generally modified directly
+
+(defvar hilit-parser-alist nil
+  "alist of major-mode values and parsers called by hilit-rehighlight-buffer.
+
+Parsers for a given mode are IGNORED for partial rehighlights...maybe you'd
+like to make this more universal?")
+
+(defvar hilit-patterns-alist nil
+  "alist of major-mode values and default highlighting patterns
+
+A hilighting pattern is a list of the form (start end face), where
+start is a regex, end is a regex (or nil if it's not needed) and face
+is the name of an entry in hilit-face-translation-table, the name of a face,
+or nil (which disables the pattern).
+
+See the hilit-lookup-face-create documentation for valid face names.")
+
+(defvar hilit-predefined-face-list (face-list)
+  "List of faces which with hilit-lookup-face-create will NOT tamper.
+
+If hilit19 is dumped into emacs at your site, you may have to set this in
+your init file.")
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Use this to report bugs:
+
+(defun hilit-submit-feeback ()
+  "Submit via mail a bug report on stig-paren"
+  (interactive)
+  (require 'reporter)
+  (and (y-or-n-p "Do you really want to submit a report on hilit19? ")
+       (reporter-submit-bug-report
+        "Jonathan Stigelman <Stig@netcom.com>"
+        "hilit19.el Beta 1.9 ($Revision: 1.34 $)"
+        (and (y-or-n-p "Do you need to include a dump hilit variables? ")
+             (append
+              '(
+                hilit-quietly                   hilit-inhibit-hooks
+                hilit-background-mode           hilit-mode-enable-list
+                hilit-auto-highlight            hilit-auto-highlight-maxout
+                hilit-auto-rehighlight          hilit-auto-rehighlight-fallback
+                hilit-face-check
+                )
+              (and (y-or-n-p "Have you modified the standard patterns? ")
+                   (yes-or-no-p "Are your patterns *REALLY* relevant? ")
+                   '(hilit-parser-alist
+                     hilit-patterns-alist
+                     hilit-predefined-face-list
+                     ))))
+         (function
+          (lambda ()
+            (insert "\nFrame Configuration:\n====================\n"
+                    (prin1-to-string (frame-configuration-to-register ?F))
+                    "\n"
+                    )))
+         nil
+         (concat
+          "This is (check all that apply, or delete those that don't):\n"
+          "  [ ] a _MASSIVE_THANK_YOU_ for writing hilit19.el\n"
+          "  [ ] my DONATION to your vacation fund (prototype digital cash)\n"
+          "  [ ] You're a RIGHTEOUS HACKER, what are your rates?\n"
+          "  [ ] I've used the force and read the source, but I'M CONFUSED\n"
+          "  [ ] a PATCH (diff -cw oldversion newversion) to fix a problem\n"
+          "  [ ] a REPRODUCABLE BUG that I do not believe to be an EMACS bug\n"
+          "     - I *swear* that it's not already mentioned in the KNOWN BUGS\n"
+          "     - Also, I have checked netcom.com:/pub/stig/src/hilit19.el.gz\n"
+          "       for a newer release that fixes the problem.\n"
+          "  [ ] ADVICE -- or an unfulfilled desire that I suspect you share\n"
+          "\n"
+          "Hey Stig, do you do anything besides hack emacs?\n"))))
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;
+;; These faces are either a valid face name, or nil
+;; if you want to change them, you must do so AFTER hilit19 is loaded
+
+(defconst hilit-face-translation-table
+  (cond ((and (eq hilit-background-mode 'light) (x-display-color-p))
+         ;; COLOR DEFAULTS for LIGHT backgrounds
+         '(
+           ;; used for C/C++ and elisp and perl
+           (comment     . firebrick-italic)
+           (include     . purple)
+           (define      . ForestGreen-bold)
+           (defun       . blue-bold)
+           (decl        . RoyalBlue)
+           (type        . nil)
+           (keyword     . RoyalBlue)
+           (label       . red-bold)
+           (string      . grey40)
+
+           ;; some further faces for Ada
+           (struct      . black-bold)
+           (glob-struct . magenta)
+           (named-param . DarkGoldenrod)
+        
+           ;; and anotherone for LaTeX
+           (crossref    . DarkGoldenrod)
+ 
+           (wysiwyg-bold   . bold)
+           (wysiwyg-underline . underline)
+
+           ;; compilation buffers
+           (error       . red-bold)
+           (warning     . firebrick)
+
+           ;; Makefiles (some faces borrowed from C/C++ too)
+           (rule        . blue-bold)
+
+           ;; VM, GNUS and Text mode
+           (msg-subject . blue-bold)
+           (msg-from    . purple-bold) 
+           (msg-header  . firebrick-bold)
+           (msg-separator  . black/tan-bold)
+           (msg-quote   . ForestGreen)
+
+           (summary-seen        . grey40)
+           (summary-killed      . grey50)
+           (summary-Xed         . OliveDrab2)
+           (summary-current     . default/skyblue-bold)
+           (summary-deleted     . firebrick)
+           (summary-unread      . RoyalBlue)
+           (summary-new         . blue-bold)
+
+           (gnus-group-unsubscribed . grey50)
+           (gnus-group-empty    . nil)
+           (gnus-group-full     . ForestGreen)
+           (gnus-group-overflowing      . firebrick)
+
+           ;; dired mode
+           (dired-directory     . blue-bold)
+           (dired-link          . firebrick-italic)
+           (dired-ignored       . ForestGreen)
+           (dired-deleted       . red-bold-italic)
+           (dired-marked        . purple)
+        
+           ;; see jargon-mode.el and prep.ai.mit.edu:/pub/gnu/jargon*.txt
+           (jargon-entry        . blue-bold)
+           (jargon-xref         . purple-bold)
+           ;; really used for Info-mode
+           (jargon-keyword      . firebrick-underline)
+           ))
+        ((and (eq hilit-background-mode 'dark) (x-display-color-p))
+         ;; COLOR DEFAULTS for DARK backgrounds
+         '(
+           ;; used for C/C++ and elisp and perl
+           (comment     . moccasin)
+           (include     . Plum1)
+           (define      . green)
+           (defun       . cyan-bold)
+           (decl        . cyan)
+           (type        . yellow)
+           (keyword     . cyan)
+           (label       . orange-underlined)
+           (string      . orange)
+        
+           ;; some further faces for Ada
+           (struct      . white-bold)
+           (glob-struct . Plum1)
+           (named-param . Goldenrod)
+        
+           ;; and anotherone for LaTeX
+           (crossref    . Goldenrod)
+        
+           (wysiwyg-bold   . bold)
+           (wysiwyg-underline . underline)
+        
+           ;; compilation buffers
+           (error       . yellow)
+           (warning     . green)
+        
+           ;; Makefiles (some faces borrowed from C/C++ too)
+           (rule                . cyan)
+        
+           ;; VM, GNUS and Text mode
+           (msg-subject         . yellow)
+           (msg-from            . SeaGreen2)
+           (msg-header          . cyan)
+           (msg-separator       . lightblue)
+           (msg-quote           . green)
+        
+           (summary-seen        . white)
+           (summary-killed      . white)
+           (summary-Xed         . green)
+           (summary-current     . green-bold)
+           (summary-deleted     . white)
+           (summary-unread      . yellow)
+           (summary-new         . yellow-bold)
+        
+           (gnus-group-unsubscribed . white)
+           (gnus-group-empty    . yellow)
+           (gnus-group-full     . green)
+           (gnus-group-overflowing . orange)
+
+           ;; dired mode
+           (dired-directory     . cyan)
+           (dired-link          . green)
+           (dired-ignored       . moccasin)
+           (dired-deleted       . orange)
+           (dired-marked        . Plum1)
+
+           ;; see jargon-mode.el and prep.ai.mit.edu:/pub/gnu/jargon*.txt
+           (jargon-entry        . cyan)
+           (jargon-xref         . Plum1)
+           ;; really used for Info-mode
+           (jargon-keyword      . yellow)
+           ))
+        (t
+         ;; MONO DEFAULTS -- you lose
+         '(
+           ;; used for C/C++ and elisp and perl
+           (comment       . italic)
+           (include       . default-bold-italic)
+           (define        . bold)
+           (defun         . default-bold-italic)
+           (decl          . bold)
+           (type          . nil)
+           (keyword       . default-bold-italic)
+           (label         . underline)
+           (string        . underline)
+
+           ;; some further faces for Ada
+           (struct        . bold)
+           (named-param   . underline)
+           (glob-struct   . default-bold-underline)
+      
+           ;; and another one for LaTeX
+           (crossref      . underline)
+
+           (wysiwyg-bold  . bold)
+           (wysiwyg-underline . underline)
+
+           ;; compilation buffers
+           (error         . bold)
+           (warning       . italic)
+
+           ;; Makefiles (some faces borrowed from C/C++ too)
+           (rule          . bold)
+
+           ;; VM, GNUS and Text mode
+           (msg-subject   . bold)
+           (msg-from      . bold)
+           (msg-header    . italic)
+           (msg-separator . nil)
+           (msg-quote     . italic)
+
+           (summary-seen        . nil)
+           (summary-killed      . nil)
+           (summary-Xed         . nil)
+           (summary-current     . reverse-default)
+           (summary-unread      . bold)
+           (summary-deleted     . italic)
+           (summary-new         . default-bold-italic)
+
+           (gnus-group-unsubscribed     . nil)
+           (gnus-group-empty            . nil)
+           (gnus-group-full             . italic)
+           (gnus-group-overflowing      . default-bold-italic)
+
+           ;; dired mode
+           (dired-directory     . bold)
+           (dired-link          . italic)
+           (dired-ignored       . nil)
+           (dired-marked        . nil)
+           (dired-deleted       . default-bold-italic)
+        
+           ;; see jargon-mode.el and prep.ai.mit.edu:/pub/gnu/jargon*.txt
+           (jargon-entry        . bold)
+           (jargon-xref         . italic)
+           ;; really used for Info-mode
+           (jargon-keyword      . underline)
+           ))
+        )
+    "alist that maps symbolic face-names to real face names")
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; To translate one face to another...
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defmacro hilit-translate (&rest args)
+  "(hilit-translate FROM TO FROM TO ...): translate each face FROM to the
+value of its TO face.  This is like setq for faces.
+
+The function hilit-lookup-face-create will repeatedly translate until no more
+translations for the face exist in the translation table.
+
+See the documentation for hilit-lookup-face-create for names of valid faces.
+"
+;; can't have an interactive macro
+;;  (interactive "SFace translate from: \nSFace translate to: ")
+  (or (zerop (% (length args) 2))
+      (error "wrong number of args"))
+  (let (cmdl from to)
+    (while args
+      (setq from (car args) to (nth 1 args) args (nthcdr 2 args)
+            cmdl (cons (list 'hilit-associate ''hilit-face-translation-table
+                             ;; this is for reverse compatibility...
+                             (if (and (consp from) (eq 'quote (car from)))
+                                 from
+                               (list 'quote from)) to)
+                       cmdl)))
+    (cons 'progn cmdl)))
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 
+;; This function actually translates and then creates the faces...
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 
+
+(defun hilit-lookup-face-create (face &optional force)
+  "Get a FACE, or create it if it doesn't exist.  In order for it to
+properly create the face, the followwing naming convention must be used:
+    [reverse-](fgcolor[/bgcolor])[-bold][-italic][-underline]
+Example: (hilit-lookup-face-create 'comment-face) might create and return 'red
+
+Each color is either the name of an X color (see .../X11/lib/X11/rgb.txt),
+a hexadecimal specification of the form \"hex-[0-9A-Fa-f]+\", or \"default\".
+
+An optional argument, FORCE, will cause the face to be recopied from the
+default...which is probably of use only if you've changed fonts.
+
+See the documentation for hilit-translate and hilit-face-translation-table."
+
+;; translate the face ...
+  (let ((trec t) visited)
+    (while trec
+      (cond ((memq face visited) (error "face translation loop: %S" visited))
+            (t (setq visited (cons face visited)
+                     trec (assq face hilit-face-translation-table))
+               (and trec (setq face (cdr trec)))))))
+
+  ;; make the face if we need to...
+  (let* ((fn (symbol-name face))
+         (frame (selected-frame))
+         (basefont (cdr (assq 'font (frame-parameters frame))))
+         error fgcolor bgcolor)
+    (cond
+     ((or (null face)                   
+          (memq face hilit-predefined-face-list))
+      ;; do nothing if the face is nil or if it's predefined.
+      )
+     ((or force
+          (not (memq face (face-list)))
+          (and hilit-face-check
+               (not (string= (get face 'basefont) basefont))))
+      (copy-face 'default 'scratch-face)
+      (if (string-match "^reverse-?" fn)
+          (progn (invert-face 'scratch-face)
+                 (setq fn (substring fn (match-end 0)))))
+
+      ;; parse foreground color
+      (if (string-match "^\\(hex-\\)?\\([A-Za-z0-9]+\\)" fn)
+          (setq fgcolor (concat
+                         (if (match-beginning 1) "#")
+                         (substring fn (match-beginning 2) (match-end 2)))
+                fn (substring fn (match-end 0)))
+        (error "bad face name %S" face))
+
+      ;; parse background color
+      (if (string-match "^/\\(hex-\\)?\\([A-Za-z0-9]+\\)" fn)
+          (setq bgcolor (concat
+                         (and (match-beginning 1) "#")
+                         (substring fn (match-beginning 2) (match-end 2)))
+                fn (substring fn (match-end 0))))
+      
+      (and (string= "default" fgcolor) (setq fgcolor nil))
+      (and (string= "default" bgcolor) (setq bgcolor nil))
+      
+      ;; catch errors if we can't allocate the color(s)
+      (condition-case nil
+          (progn (set-face-foreground 'scratch-face fgcolor)
+                 (set-face-background 'scratch-face bgcolor)
+                 (copy-face 'scratch-face face)
+                 (put face 'basefont basefont))
+        (error (message "couldn't allocate color for '%s'"
+                        (symbol-name face))
+               (setq face 'default)
+               (setq error t)))
+      (or error
+          ;; don't bother w/ bold or italic if we didn't get the color
+          ;; we wanted, but ignore errors making the face bold or italic
+          ;; if the font isn't available, there's nothing to do about it...
+          (progn
+            (set-face-font face nil frame)
+            (set-face-underline-p face (string-match "underline" fn))
+            (if (string-match ".*bold" fn)
+                (make-face-bold face frame  'noerr))
+            (if (string-match ".*italic" fn)
+                (make-face-italic face frame 'noerr))
+            ))
+      )))
+  face)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Region Highlight/Unhighlight code (Both overlay and text-property versions)
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defsubst hilit-region-set-face (start end face-name &optional prio prop)
+  "Highlight region from START to END using FACE and, optionally, PRIO.
+The optional 5th arg, PROP is a property to set instead of 'hilit."
+  (let ((overlay (make-overlay start end)))
+    (overlay-put overlay 'face face-name)
+    (overlay-put overlay (or prop 'hilit) t)
+    (and prio (overlay-put overlay 'priority prio))))
+
+(defun hilit-unhighlight-region (start end &optional quietly)
+  "Unhighlights the region from START to END, optionally in a QUIET way"
+  (interactive "r")
+  (or quietly hilit-quietly (message "Unhighlighting"))
+  (while (< start end)
+    (mapcar (function (lambda (ovr)
+                        (and (overlay-get ovr 'hilit) (delete-overlay ovr))))
+            (overlays-at start))
+    (setq start (next-overlay-change start)))
+  (or quietly hilit-quietly (message "Done unhighlighting")))
+
+;;;; These functions use text properties instead of overlays.  Text properties
+;;;; are copied through kill and yank...which might be convenient, but is not
+;;;; terribly efficient as of 19.12, ERGO it's been disabled
+;;
+;;(defsubst hilit-region-set-face (start end face-name &optional prio prop)
+;;  "Highlight region from START to END using FACE and, optionally, PRIO.
+;;The optional 5th arg, PROP is a property to set instead of 'hilit."
+;;    (put-text-property start end 'face face-name)
+;;    )
+;;
+;;(defun hilit-unhighlight-region (start end &optional quietly)
+;;  "Unhighlights the region from START to END, optionally in a QUIET way"
+;;  (interactive "r")
+;;  (let ((buffer-read-only nil)
+;;      (bm (buffer-modified-p)))
+;;    (remove-text-properties start end '(face))
+;;    (set-buffer-modified-p bm)))
+;;;;
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Pattern Application code and user functions
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defun hilit-highlight-region (start end &optional patterns quietly)
+  "Highlights the area of the buffer between START and END (the region when
+interactive).  Without the optional PATTERNS argument, the pattern for
+major-mode is used.  If PATTERNS is a symbol, then the patterns associated
+with that symbol are used.  QUIETLY suppresses progress messages if
+non-nil."
+  (interactive "r")
+  (cond ((null patterns)
+         (setq patterns (cdr (assq major-mode hilit-patterns-alist))))
+        ((symbolp patterns)
+         (setq patterns (cdr (assq patterns hilit-patterns-alist)))))  
+  ;; txt prop: (setq patterns (reverse patterns))
+  (let ((prio (length patterns))
+        (case-fold-search nil)
+        ;; txt prop: (buffer-read-only nil)
+        ;; txt prop: (bm (buffer-modified-p))
+        p pstart pend face mstart)
+    ;; txt prop: (unwind-protect
+    (save-excursion
+      (save-restriction
+        (narrow-to-region start end)
+        (while patterns
+          (setq p (car patterns))
+          (setq pstart (car p)
+                pend (nth 1 p)
+                face (hilit-lookup-face-create (nth 2 p)))
+          (if (not face)                ; skipped if nil
+              nil
+            (or quietly hilit-quietly
+                (message "highlighting %d: %s%s" prio pstart 
+                         (if pend (concat " ... " pend) "")))
+            (goto-char (point-min))
+            (condition-case nil
+                (cond 
+                      ((symbolp pstart)
+                       ;; inner loop -- special function to find pattern
+                       (let (region)
+                         (while (setq region (funcall pstart pend))
+                           (hilit-region-set-face (car region) (cdr region)
+                                                  face prio))))
+                      (pend
+                       ;; inner loop -- regex-start ... regex-end
+                       (while (re-search-forward pstart nil t nil)
+                         (goto-char (setq mstart (match-beginning 0)))
+                         (if (re-search-forward pend nil t nil)
+                             (hilit-region-set-face mstart (match-end 0)
+                                                    face prio)
+                           (forward-char 1))))
+                      (t
+                       ;; inner loop -- just one regex to match whole pattern
+                       (while (re-search-forward pstart nil t nil)
+                         (hilit-region-set-face  (match-beginning 0)
+                                                 (match-end 0) face prio))))
+              (error (message "Unbalanced delimiters?  Barfed on '%s'"
+                              pstart)
+                     (ding) (sit-for 4))))
+          (setq prio (1- prio)
+                patterns (cdr patterns)))
+        ))                              
+    (or quietly hilit-quietly (message "")) ; "Done highlighting"
+    ;; txt prop: (set-buffer-modified-p bm)) ; unwind protection
+    ))
+
+(defun hilit-rehighlight-region (start end &optional quietly)
+  "Re-highlights the region, optionally in a QUIET way"
+  (interactive "r")
+  (setq start (apply 'min start (mapcar 'overlay-start (overlays-at start)))
+        end (apply 'max end (mapcar 'overlay-end (overlays-at end))))
+  (hilit-unhighlight-region start end quietly)
+  (hilit-highlight-region   start end nil quietly))
+
+(defun hilit-rehighlight-buffer (&optional quietly)
+  "Re-highlights the buffer, optionally in a QUIET way"
+  (interactive "")
+  (let ((parse-fn (cdr (assq major-mode hilit-parser-alist))))
+    (if parse-fn
+        (funcall parse-fn quietly)
+      (hilit-rehighlight-region (point-min) (point-max) quietly)))
+  nil)
+
+(defun hilit-rehighlight-buffer-quietly ()
+  (hilit-rehighlight-buffer t))
+
+(defun hilit-rehighlight-message (quietly)
+  "Highlight a buffer containing a news article or mail message."
+  (save-excursion
+    (goto-char (point-min))
+    (re-search-forward "^$" nil 'noerr)
+    (hilit-unhighlight-region (point-min) (point-max) quietly)
+    (hilit-highlight-region (point-min) (point) 'msg-header quietly)
+    (hilit-highlight-region (point) (point-max) 'msg-body quietly)))
+
+(defalias 'hilit-highlight-buffer 'hilit-rehighlight-buffer)
+
+(defun hilit-toggle-highlight (arg)
+  "Locally toggle highlighting.  With arg, forces highlighting off."
+  (interactive "P")
+  ;; FIXME -- this loses numeric information in hilit-auto-rehighlight
+  (setq hilit-auto-rehighlight
+        (and (not arg) (not hilit-auto-rehighlight)))
+  (if hilit-auto-rehighlight
+      (hilit-rehighlight-buffer)
+    (hilit-unhighlight-region (point-min) (point-max)))
+  (message "Rehighlighting is set to %s" hilit-auto-rehighlight))
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; HOOKS
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defun hilit-find-file-hook ()
+  "Find-file hook for hilit package.  See the variable hilit-auto-highlight."
+  (cond ((and hilit-auto-highlight
+              (assq major-mode hilit-patterns-alist))
+         (if (> buffer-saved-size (car hilit-auto-rehighlight-fallback))
+             (setq hilit-auto-rehighlight
+                   (cdr hilit-auto-rehighlight-fallback)))
+         (if (> buffer-saved-size hilit-auto-highlight-maxout) nil
+           (hilit-rehighlight-buffer)
+           (set-buffer-modified-p nil)))))
+
+(defun hilit-repaint-command (arg)
+  "Rehighlights according to the value of hilit-auto-rehighlight, or the
+prefix argument if that is specified.
+\t\\[hilit-repaint-command]\t\trepaint according to hilit-auto-rehighlight
+\t^U \\[hilit-repaint-command]\trepaint entire buffer
+\t^U - \\[hilit-repaint-command]\trepaint visible portion of buffer
+\t^U n \\[hilit-repaint-command]\trepaint n lines to either side of point"
+  (interactive "P") 
+  (let (st en quietly)
+    (or arg (setq arg hilit-auto-rehighlight))
+    (cond ((or (eq  arg 'visible) (eq arg '-))
+           (setq st (window-start) en (window-end) quietly t))
+          ((numberp arg)
+           (setq st (save-excursion (forward-line (- arg)) (point))
+                 en (save-excursion (forward-line arg) (point))))
+          (arg
+           (hilit-rehighlight-buffer)))
+    (if st
+          (hilit-rehighlight-region st en quietly))))
+
+;; (defun hilit-rehighlight-yank-region ()
+;;   "Rehighlights from the beginning of the line where the region starts to
+;; the end of the line where the region ends.  This could flake out on
+;; multi-line highlights (like C comments and lisp strings.)"
+;;   (if hilit-auto-rehighlight
+;;       (hilit-rehighlight-region
+;;        (save-excursion (goto-char (region-beginning))
+;;                     (beginning-of-line) (point))
+;;        (save-excursion (goto-char (region-end))
+;;                     (end-of-line) (point))
+;;        t)))
+
+(defun hilit-recenter (arg)
+  "Recenter, then rehighlight according to hilit-auto-rehighlight.  If called
+with an unspecified prefix argument (^U but no number), then a rehighlight of
+the entire buffer is forced."
+  (interactive "P")
+  (recenter arg)
+  ;; force display update
+  (sit-for 0)
+  (hilit-repaint-command (consp arg)))
+
+;; (defun hilit-redraw-display (arg)
+;;   "Rehighlights according to the value of hilit-auto-rehighlight, a prefix
+;; arg forces a rehighlight of the whole buffer.  Otherwise just like
+;; redraw-display."
+;;   (interactive "P")
+;;   (hilit-redraw-internal arg)
+;;   (redraw-display))
+
+(defun hilit-yank (arg)
+  "Yank with rehighlighting"
+  (interactive "*P")
+  (let ((transient-mark-mode nil))
+    (yank arg)
+    (hilit-rehighlight-region (region-beginning) (region-end) t)
+    (setq this-command 'yank)))
+
+(defun hilit-yank-pop (arg)
+  "Yank-pop with rehighlighting"
+  (interactive "*p")
+  (let ((transient-mark-mode nil))
+    (yank-pop arg)
+    (hilit-rehighlight-region (region-beginning) (region-end) t)
+    (setq this-command 'yank)))
+
+;;; this line highlighting stuff is untested.  play with it only if you feel
+;;; adventurous...don't ask me to fix it...though you're welcome to.  -- Stig
+;; 
+;; (defun hilit-rehighlight-line-quietly (&rest args)
+;;   "Quietly rehighlight just this line.
+;; Useful as an after change hook in VM/gnus summary buffers and dired buffers.
+;; If only there were an after-change-function, that is..."
+;;   (save-excursion
+;;     (push-mark nil t)
+;;     (hilit-rehighlight-yank-region)
+;;     (and orig-achange-function (apply orig-achange-function args))))
+;; 
+;; (defun hilit-install-line-hooks ()
+;;   (make-variable-buffer-local 'after-change-function)
+;;   (make-local-variable 'orig-achange-function)
+;;   (setq orig-achange-function after-change-function)
+;;   (setq after-change-function 'hilit-rehighlight-line-quietly))
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Wysiwyg Stuff...  take it away and build a whole package around it!
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; 
+;; ; For the Jargon-impaired, WYSIWYG === What You See Is What You Get
+;; ; Sure, it sucks to type.  Oh, well.
+;; (defun hilit-wysiwyg-replace ()
+;;   "Replace overstruck text with normal text that's been overlayed with the 
+;; appropriate text attribute.  Suitable for a find-file hook."
+;;   (save-excursion
+;;     (goto-char (point-min))
+;;     (let ((wysb (hilit-lookup-face-create 'wysiwyg-bold))
+;;        (wysu (hilit-lookup-face-create 'wysiwyg-underline))
+;;        (bmod (buffer-modified-p)))
+;;       (while (re-search-forward "\\(.\b.\\)+" nil t)
+;;      (let ((st (match-beginning 0)) (en (match-end 0)))
+;;        (goto-char st)
+;;        (if (looking-at "_")
+;;            (hilit-region-set-face st en wysu 100 'wysiwyg)
+;;          (hilit-region-set-face st en wysb 100 'wysiwyg))
+;;        (while (and (< (point) en) (looking-at ".\b"))
+;;          (replace-match "") (forward-char))
+;;        ))
+;;       (set-buffer-modified-p bmod))))
+;; 
+;; ; is this more appropriate as a write-file-hook or a write-contents-hook?
+;; (defun hilit-wysiwyg-write-repair ()
+;;   "Replace wysiwyg overlays with overstrike text."
+;;   (message "*sigh* hilit-wysiwyg-write-repair not implemented yet")
+;;
+;; For efficiency, this hook should copy the current buffer to a scratch
+;; buffer and do it's overstriking there.  Overlays are not copied, so it'll
+;; be necessary to hop back and forth.  This is OK since you're not fiddling
+;; with--making or deleting--any overlays.  THEN write the new buffer,
+;; delete it, and RETURN T. << important
+;;
+;; Just so you know...there is already an emacs function called
+;; underline-region that does underlining.  I think that the thing to do is
+;; extend that to do overstriking as well.
+;;
+;;  (while (< start end)
+;;    (mapcar (function (lambda (ovr)
+;;                        (and (overlay-get ovr 'hilit) (delete-overlay ovr))))
+;;          (overlays-at start))
+;;    (setq start (next-overlay-change start)))
+;;  nil)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Initialization.  
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(substitute-key-definition 'yank     'hilit-yank     (current-global-map))
+(substitute-key-definition 'yank-pop 'hilit-yank-pop (current-global-map))
+
+;; (substitute-key-definition 'recenter 'hilit-recenter (current-global-map))
+;; (substitute-key-definition 'redraw-display 'hilit-redraw-display
+;;                            (current-global-map))
+
+(global-set-key [?\C-\S-l] 'hilit-repaint-command)
+
+(and window-system
+     (add-hook 'find-file-hooks 'hilit-find-file-hook t))
+
+(and (not hilit-inhibit-hooks)
+     window-system
+     (condition-case c
+         (progn
+
+           ;; BUFFER highlights...
+           (mapcar (function
+                    (lambda (hook)
+                      (add-hook hook 'hilit-rehighlight-buffer-quietly)))
+                   '(
+                     Info-select-hook
+                     vm-summary-mode-hooks
+                     vm-summary-pointer-hook
+                     gnus-summary-prepare-hook
+                     gnus-group-prepare-hook
+
+                     vm-preview-message-hook
+                     vm-show-message-hook
+                     gnus-article-prepare-hook
+                     rmail-show-message-hook
+                     mail-setup-hook 
+                     ))
+
+           ;; rehilight only the visible part of the summary buffer for speed.
+           (add-hook 'gnus-mark-article-hook
+                     (function
+                      (lambda ()
+                        (or (memq gnus-current-article gnus-newsgroup-marked)
+                            (gnus-summary-mark-as-read gnus-current-article))
+                        (gnus-summary-set-current-mark)
+                        (save-excursion
+                          (set-buffer gnus-summary-buffer)
+                          (hilit-rehighlight-region (window-start)
+                                                    (window-end) t)
+                          ))))
+           ;; only need prepare article hook
+           ;;
+           ;;   (add-hook 'gnus-select-article-hook
+           ;;             '(lambda () (save-excursion
+           ;;                           (set-buffer gnus-article-buffer)
+           ;;                           (hilit-rehighlight-buffer))))
+           )
+       (error (message "Error loading highlight hooks: %s" c)
+              (ding) (sit-for 1))))
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Default patterns for various modes.
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+;;; do I need this?  I changed the defconst to a defvar because defconst is
+;;; inappropriate, but I don't know why I wanted hilit-patterns-alist to be
+;;; reset on every reload...
+
+(setq hilit-patterns-alist nil) 
+
+(defun hilit-associate (alist key val)
+  "creates, or destructively replaces, the pair (key . val) in alist"
+  (let ((oldentry (assq key (eval alist))))
+    (if oldentry
+        (setcdr oldentry val)
+      (set alist (cons (cons key val) (eval alist))))))
+  
+(defun hilit-set-mode-patterns (modelist patterns &optional parse-fn)
+  "Sets the default hilighting patterns for MODE to PATTERNS.
+See the variable hilit-mode-enable-list."
+  (or (consp modelist) (setq modelist (list modelist)))
+  (let (ok (flip (eq (car hilit-mode-enable-list) 'not)))
+    (mapcar (function
+             (lambda (m)
+               (setq ok (or (null hilit-mode-enable-list)
+                            (memq m hilit-mode-enable-list)))
+               (and flip (setq ok (not ok)))
+               (and ok
+                   (progn
+                     (and parse-fn
+                          (hilit-associate 'hilit-parser-alist m parse-fn))
+                     (hilit-associate 'hilit-patterns-alist m patterns)))))
+            modelist)))
+
+(defun hilit-string-find (qchar)
+  "looks for a string and returns (start . end) or NIL.  The argument QCHAR
+is the character that would precede a character constant double quote.
+Finds  [^QCHAR]\" ... [^\\]\""
+  (let (st en)
+    (while (and (search-forward "\"" nil t)
+                (eq qchar (char-after (1- (setq st (match-beginning 0)))))))
+    (while (and (search-forward "\"" nil t)
+                (eq ?\\ (char-after (- (setq en (point)) 2)))))
+    (and en (cons st en))))    
+
+(hilit-set-mode-patterns
+ '(c-mode c++-c-mode elec-c-mode)
+ '(("/\\*" "\\*/" comment)
+                                        ;       ("\"" "[^\\]\"" string)
+   (hilit-string-find ?' string)
+   ;; declaration
+   ("^#[ \t]*\\(undef\\|define\\).*$" nil define)
+   ("^#.*$" nil include)
+   ;; function decls are expected to have types on the previous line
+   ("^\\(\\w\\|[$_]\\)+\\s *\\(\\(\\w\\|[$_]\\)+\\s *((\\|(\\)[^)]*)+" nil defun)
+   ("^\\(typedef\\|struct\\|union\\|enum\\).*$" nil decl)
+   ;; datatype -- black magic regular expression
+   ("[ \n\t({]\\(\\(register\\|volatile\\|unsigned\\|extern\\|static\\)\\s +\\)*\\(\\(\\w\\|[$_]\\)+_t\\|float\\|double\\|void\\|char\\|short\\|int\\|long\\|FILE\\|\\(\\(struct\\|union\\|enum\\)\\([ \t]+\\(\\w\\|[$_]\\)*\\)\\)\\)\\(\\s +\\*+)?\\|[ \n\t;()]\\)" nil type)
+   ;; key words
+   ("\\<\\(return\\|goto\\|if\\|else\\|case\\|default\\|switch\\|break\\|continue\\|while\\|do\\|for\\)\\>" nil keyword)
+   ))
+
+(hilit-set-mode-patterns
+ 'c++-mode
+ '(("/\\*" "\\*/" comment)
+   ("//.*$" nil comment)
+   ("^/.*$" nil comment)
+;   ("\"" "[^\\]\"" string)
+   (hilit-string-find ?' string)
+   ;; declaration       
+   ("^#[ \t]*\\(undef\\|define\\).*$" nil define)
+   ("^#.*$" nil include)
+   ;; function decls are expected to have types on the previous line
+   ("^\\(\\(\\w\\|[$_]\\)+::\\)?\\(\\w\\|[$_]\\)+\\s *\\(\\(\\w\\|[$_]\\)+\\s *((\\|(\\)[^)]*)+" nil defun)
+   ("^\\(\\(\\w\\|[$_]\\)+[ \t]*::[ \t]*\\)?\\(\\(\\w\\|[$_]\\)+\\|operator.*\\)\\s *\\(\\(\\w\\|[$_]\\)+\\s *((\\|(\\)[^)]*)+" nil defun)
+   ("^\\(template\\|typedef\\|struct\\|union\\|class\\|enum\\|public\\|private\\|protected\\).*$" nil decl)
+   ;; datatype -- black magic regular expression
+   ("[ \n\t({]\\(\\(register\\|volatile\\|unsigned\\|extern\\|static\\)\\s +\\)*\\(\\(\\w\\|[$_]\\)+_t\\|float\\|double\\|void\\|char\\|short\\|int\\|long\\|FILE\\|\\(\\(struct\\|union\\|enum\\|class\\)\\([ \t]+\\(\\w\\|[$_]\\)*\\)\\)\\)\\(\\s +\\*+)?\\|[ \n\t;()]\\)" nil type)
+   ;; key words
+   ("\\<\\(return\\|goto\\|if\\|else\\|case\\|default\\|switch\\|break\\|continue\\|while\\|do\\|for\\|public\\|protected\\|private\\|delete\\|new\\)\\>"
+    nil keyword)))
+
+(hilit-set-mode-patterns
+ 'perl-mode
+ '(("\\s #.*$" nil comment)
+   ("^#.*$" nil comment)
+   ("\"[^\\\"]*\\(\\\\\\(.\\|\n\\)[^\\\"]*\\)*\"" nil string)
+   ("^\\(__....?__\\|\\s *\\sw+:\\)" nil label)
+   ("^require.*$" nil include)
+   ("^package.*$" nil decl)
+   ("^\\s *sub\\s +\\(\\w\\|[_']\\)+" nil defun)
+   ("\\b\\(do\\|if\\|unless\\|while\\|until\\|else\\|elsif\\|for\\|foreach\\|continue\\|next\\|redo\\|last\\|goto\\|return\\|die\\|exit\\)\\b" nil keyword)))
+
+(hilit-set-mode-patterns
+ 'ada-mode
+ '(;; comments
+   ("--.*$" nil comment)
+   ;; main structure
+   ("[ \t\n]procedure[ \t]" "\\([ \t]\\(is\\|renames\\)\\|);\\)" glob-struct)
+   ("[ \t\n]task[ \t]" "[ \t]is" glob-struct)
+   ("[ \t\n]function[ \t]" "return[ \t]+[A-Za-z_0-9]+[ \t]*\\(is\\|;\\|renames\\)" glob-struct)
+   ("[ \t\n]package[ \t]" "[ \t]\\(is\\|renames\\)" glob-struct)
+   ;; if there is nothing before "private", it is part of the structure
+   ("^[ \t]*private[ \t\n]" nil glob-struct)
+   ;; if there is no indentation before the "end", then it is most
+   ;; probably the end of the package
+   ("^end.*$" ";" glob-struct)
+   ;; program structure -- "null", "delay" and "terminate" omitted
+   ("[ \n\t]\\(in\\|out\\|select\\|if\\|else\\|case\\|when\\|and\\|or\\|not\\|accept\\|loop\\|do\\|then\\|elsif\\|else\\|for\\|while\\|exit\\)[ \n\t;]" nil struct)
+   ;; block structure
+   ("[ \n\t]\\(begin\\|end\\|declare\\|exception\\|generic\\|raise\\|return\\|package\\|body\\)[ \n\t;]" nil struct)
+   ;; type declaration
+   ("^[ \t]*\\(type\\|subtype\\).*$" ";" decl)
+   ("[ \t]+is record.*$" "end record;" decl)
+   ;; "pragma", "with", and "use" are close to C cpp directives
+   ("^[ \t]*\\(with\\|pragma\\|use\\)" ";" include)
+   ;; nice for named parameters, but not so beautiful in case statements
+   ("[A-Za-z_0-9.]+[ \t]*=>"   nil named-param)
+   ;; string constants probably not everybody likes this one
+   ("\"" ".*\"" string)))
+
+(hilit-set-mode-patterns
+ 'fortran-mode
+ '(("^[*Cc].*$" nil comment)
+   ("[ \t]\\(call\\|program\\|subroutine\\|function\\|stop\\|return\\|end\\|include\\)[ \t\n]" nil include)
+   ("\\(^[ \t]*[0-9]+\\|[ \t]continue[ \t\n]\\|format\\)" nil define)
+   ("[ \t]\\(do\\|do[ \t]*[0-9]+\\|go[ \t]*to[ \t]*[0-9]+\\|end[ \t]*do\\|if\\|else[ \t]*if\\|then\\|else\\|end[ \t]*if\\)[ \t\n(]" nil define)
+   ("[ \t]\\(parameter[\t\n ]*([^)]*)\\|data\\|save\\|common[ \t\n]*/[^/]*/\\)" 
+    nil decl)
+   ("^     ." nil type)
+   ("implicit[ \t]*none" nil decl)
+   ("\\([ \t]\\|implicit[ \t]*\\)\\(dimension\\|integer\\|real\\|double[ \t]*precision\\|character\\|logical\\|complex\\|double[ \t]*complex\\)\\([*][0-9]*\\|[ \t\n]\\)" nil keyword)
+   ("'[^'\n]*'" nil string)
+   ))
+
+(hilit-set-mode-patterns
+ '(m2-mode modula-2-mode)
+ '(("(\\*" "\\*)" comment)
+   (hilit-string-find ?\\ string)
+   ("^[ \t]*PROCEDURE[ \t]+\\w+[^ \t(;]*" nil defun)
+   ("\\<\\(RECORD\\|ARRAY\\|OF\\|POINTER\\|TO\\|BEGIN\\|END\\|FOR\\|IF\\|THEN\\|ELSE\\|ELSIF\\|CASE\\|WHILE\\|DO\\|MODULE\\|FROM\\|RETURN\\|IMPORT\\|EXPORT\\|VAR\\|LOOP\\|UNTIL\\|\\DEFINITION\\|IMPLEMENTATION\\|AND\\|OR\\|NOT\\|CONST\\|TYPE\\|QUALIFIED\\)\\>" nil keyword)
+   ))
+
+(hilit-set-mode-patterns 'prolog-mode
+ '(("/\\*" "\\*/" comment)
+   ("%.*$" nil comment)
+   (":-" nil defun)
+   ("!" nil label)
+   ("\"[^\\\"]*\\(\\\\\\(.\\|\n\\)[^\\\"]*\\)*\"" nil string)
+   ("\\b\\(is\\|mod\\)\\b" nil keyword)
+   ("\\(->\\|-->\\|;\\|==\\|\\\\==\\|=<\\|>=\\|<\\|>\\|=\\|\\\\=\\|=:=\\|=\\\.\\\.\\|\\\\\\\+\\)" nil decl)
+   ("\\(\\\[\\||\\|\\\]\\)" nil include)))
+
+(hilit-set-mode-patterns
+ '(
+   LaTeX-mode japanese-LaTeX-mode SliTeX-mode
+   japanese-SliTeX-mode FoilTeX-mode latex-mode
+   )
+ '(
+   ;; comments
+   ("[^\\]%.*$" nil comment)
+
+   ;; the following two match \foo[xx]{xx} or \foo*{xx} or \foo{xx}
+   ("\\\\\\(sub\\)*\\(paragraph\\|section\\)\\(\*\\|\\[.*\\]\\)?{" "}"
+    keyword)
+   ("\\\\\\(chapter\\|part\\)\\(\*\\|\\[.*\\]\\)?{" "}" keyword)
+   ("\\\\footnote\\(mark\\|text\\)?{" "}" keyword)
+   ("\\\\[a-z]+box" nil keyword)
+   ("\\\\\\(v\\|h\\)space\\(\*\\)?{" "}" keyword)
+
+   ;; (re-)define new commands/environments/counters
+   ("\\\\\\(re\\)?new\\(environment\\|command\\){" "}" defun)
+   ("\\\\new\\(length\\|theorem\\|counter\\){" "}" defun)
+
+   ;; various declarations/definitions
+   ("\\\\\\(setlength\\|settowidth\\|addtolength\\|setcounter\\|addtocounter\\)" nil define)
+   ("\\\\\\(\\|title\\|author\\|date\\|thanks\\){" "}" define)
+
+   ("\\\\documentstyle\\(\\[.*\\]\\)?{" "}" decl)
+   ("\\\\\\(begin\\|end\\|nofiles\\|includeonly\\){" "}" decl)
+   ("\\\\\\(raggedright\\|makeindex\\|makeglossary\\|maketitle\\)\\b" nil
+    decl)
+   ("\\\\\\(pagestyle\\|thispagestyle\\|pagenumbering\\){" "}" decl)
+   ("\\\\\\(normalsize\\|small\\|footnotesize\\|scriptsize\\|tiny\\|large\\|Large\\|LARGE\\|huge\\|Huge\\)\\b" nil decl)
+   ("\\\\\\(appendix\\|tableofcontents\\|listoffigures\\|listoftables\\)\\b"
+    nil decl)
+   ("\\\\\\(bf\\|em\\|it\\|rm\\|sf\\|sl\\|ss\\|tt\\)\\b" nil decl)
+
+   ;; label-like things
+   ("\\\\item\\[" "\\]" label)
+   ("\\\\item\\b" nil label)
+   ("\\\\caption\\(\\[.*\\]\\)?{" "}" label)
+
+   ;; things that bring in external files
+   ("\\\\\\(include\\|input\\|bibliography\\){" "}" include)
+
+   ;; "wysiwyg" emphasis
+   ("{\\\\\\(em\\|it\\|sl\\)" "}" italic)
+   ("{\\\\bf" "}" bold)
+
+   ("``" "''" string)
+
+   ;; things that do some sort of cross-reference
+   ("\\\\\\(\\(no\\)?cite\\|\\(page\\)?ref\\|label\\|index\\|glossary\\){" "}" crossref)
+   ))
+
+(hilit-set-mode-patterns
+ 'bibtex-mode
+ '(;;(";.*$"                    nil     comment)
+   ("%.*$"                      nil     comment)
+   ("@[a-zA-Z]+"                nil     keyword)
+   ("{[ \t]*[-a-z:_A-Z0-9]+,"   nil     label) ; is wrong sometimes
+   ("^[ \t]*[a-zA-Z]+[ \t]*="   nil     define)))
+
+(hilit-set-mode-patterns
+ 'compilation-mode
+ '(("^[^ \t]*:[0-9]+:.*$" nil error)
+   ("^[^ \t]*:[0-9]+: warning:.*$" nil warning)))
+
+(hilit-set-mode-patterns
+ 'makefile-mode
+ '(("^#.*$" nil comment)
+   ("[^$]#.*$" nil comment)
+   ;; rules
+   ("^%.*$" nil rule)
+   ("^[.][A-Za-z][A-Za-z]?\..*$" nil rule)
+   ;; variable definition
+   ("^[_A-Za-z0-9]+ *\+?=" nil define)
+   ("\\( \\|:=\\)[_A-Za-z0-9]+ *\\+=" nil define)
+   ;; variable references
+   ("\$[_A-Za-z0-9]" nil type)
+   ("\${[_A-Za-z0-9]+}" nil type)
+   ("\$\([_A-Za-z0-9]+\)" nil type)
+   ("^include " nil include)))
+
+(let* ((header-patterns '(("^Subject:.*$" nil msg-subject)
+                          ("^From:.*$" nil msg-from)
+                          ("^--text follows this line--$" nil msg-separator)
+                          ("^[A-Za-z][A-Za-z0-9-]+:" nil msg-header)))
+       (body-patterns '(("^\\(In article\\|[ \t]*\\w*[]>}|]\\).*$"
+                         nil msg-quote)))
+       (message-patterns (append header-patterns body-patterns)))
+  (hilit-set-mode-patterns 'msg-header header-patterns)
+  (hilit-set-mode-patterns 'msg-body body-patterns)
+  (hilit-set-mode-patterns
+   '(vm-mode text-mode mail-mode rmail-mode gnus-article-mode news-reply-mode)
+   message-patterns
+   'hilit-rehighlight-message))
+
+(hilit-set-mode-patterns
+ 'gnus-group-mode
+ '(("^U.*$" nil gnus-group-unsubscribed)
+   ("^ +[01]?[0-9]:.*$" nil gnus-group-empty)
+   ("^ +[2-9][0-9]:.*$" nil gnus-group-full)
+   ("^ +[0-9][0-9][0-9]+:.*$" nil gnus-group-overflowing)))
+
+(hilit-set-mode-patterns
+ 'gnus-summary-mode
+ '(("^D +[0-9]+: \\[.*$" nil summary-seen)
+   ("^K +[0-9]+: \\[.*$" nil summary-killed)
+   ("^X +[0-9]+: \\[.*$" nil summary-Xed)
+   ("^- +[0-9]+: \\[.*$" nil summary-unread)
+   ("^. +[0-9]+:\\+\\[.*$" nil summary-current)
+   ("^  +[0-9]+: \\[.*$" nil summary-new)
+   ))
+
+(hilit-set-mode-patterns
+ 'vm-summary-mode
+ '(("^   .*$" nil summary-seen)
+   ("^->.*$" nil  summary-current)
+   ("^  D.*$" nil summary-deleted)
+   ("^  U.*$" nil summary-unread)
+   ("^  N.*$" nil summary-new)))
+
+
+(hilit-set-mode-patterns
+ '(emacs-lisp-mode lisp-mode)
+ '(
+   (";.*" nil comment)
+;;;      ("^;.*$" nil comment)
+;;;      ("\\s ;+[ ;].*$" nil comment)
+   (hilit-string-find ?\\ string)
+   ("^\\s *(def\\(un\\|macro\\|advice\\|subst\\)\\s " "\\()\\|nil\\)" defun)
+   ("^\\s *(defvar\\s +\\S +" nil decl)
+   ("^\\s *(defconst\\s +\\S +" nil define)
+   ("^\\s *(\\(provide\\|require\\|\\(auto\\)?load\\).*$" nil include)
+   ))
+
+
+(hilit-set-mode-patterns
+ 'plain-tex-mode
+ '(("^%%.*$" nil comment)
+   ("{\\\\em\\([^}]+\\)}" nil comment)
+   ("\\(\\\\\\w+\\)" nil keyword)
+   ("{\\\\bf\\([^}]+\\)}" nil keyword)
+   ("^[ \t\n]*\\\\def[\\\\@]\\(\\w+\\)" nil defun)
+   ("\\\\\\(begin\\|end\\){\\([A-Za-z0-9\\*]+\\)}" nil defun)
+;   ("[^\\\\]\\$\\([^$]*\\)\\$" nil string)
+   ("\\$\\([^$]*\\)\\$" nil string)
+   ))
+
+;; Reasonable extensions would include smarter parameter handling for such
+;; things as the .IX and .I macros, which alternate the handling of following
+;; arguments.
+
+(hilit-set-mode-patterns
+ 'nroff-mode
+ '(("^\\.[\\\][\\\"].*$" nil comment)
+   ("^\\.so .*$" nil include)
+   ("^\\.[ST]H.*$" nil defun)
+;;   ("^[^\\.].*\"[^\\\"]*\\(\\\\\\(.\\)[^\\\"]*\\)*\"" nil string)
+   ("\"" "[^\\]\"" string)
+   ("^\\.[A-Za-z12\\\\].*$" nil define)
+   ("\\([\\\][^ ]*\\)" nil keyword)
+   ("^\\.[a-zA-Z].*$" nil keyword)))
+
+(hilit-set-mode-patterns
+ 'texinfo-mode
+ '(("^\\(@c\\|@comment\\)\\>.*$" nil comment)
+   ("@\\(emph\\|strong\\|b\\|i\\){[^}]+}" nil comment)
+; seems broken
+;   ("\\$[^$]*\\$" nil string)
+   ("@\\(file\\|kbd\\|key\\){[^}]+}" nil string)
+   ("^\\*.*$" nil defun)
+   ("@\\(if\\w+\\|format\\|item\\)\\b.*$" nil defun)
+   ("@end +[A-Za-z0-9]+[ \t]*$" nil defun)
+   ("@\\(samp\\|code\\|var\\){[^}]+}" nil defun)
+   ("@\\w+\\({[^}]+}\\)?" nil keyword)
+   ))
+
+(hilit-set-mode-patterns
+ 'dired-mode
+ (append
+  '(("^D.*$"  nil dired-deleted)
+   ("^\\*.*$" nil dired-marked)
+   ("^  d.*$" nil dired-directory)
+   ("^  l.*$" nil dired-link)
+   ("^  -.*#.*#$" nil dired-ignored))
+  (list (cons
+         (concat "^  .*\\("
+                 (mapconcat 'regexp-quote completion-ignored-extensions "\\|")
+                 "\\)$")
+         '(nil dired-ignored)))))
+
+(hilit-set-mode-patterns
+ 'jargon-mode
+ '(("^:[^:]*:" nil jargon-entry)
+   ("{[^}]*}+" nil jargon-xref)))
+
+(hilit-set-mode-patterns
+ 'Info-mode
+ '(("^\\* [^:]+:+" nil jargon-entry)
+   ("\\*[Nn]ote\\b[^:]+:+" nil jargon-xref)
+   ("  \\(Next\\|Prev\\|Up\\):" nil jargon-xref)
+   ("- \\(Variable\\|Function\\|Macro\\|Command\\|Special Form\\|User Option\\):.*$"
+    nil jargon-keyword)))       ; lisp manual
+
+(provide 'hilit19)
+
+;;; hilit19 ends here.