From 50c5e88196ad1b7ab0483a9e23f9035733a89c2e Mon Sep 17 00:00:00 2001
From: David Aspinall <da@inf.ed.ac.uk>
Date: Wed, 14 Apr 2004 17:25:52 +0000
Subject: Remove X-symbol support from secondary provers temporarily

---
 twelf/x-symbol-twelf.el | 79 ++-----------------------------------------------
 1 file changed, 2 insertions(+), 77 deletions(-)

(limited to 'twelf')

diff --git a/twelf/x-symbol-twelf.el b/twelf/x-symbol-twelf.el
index 58f3fa08..a448f4d1 100644
--- a/twelf/x-symbol-twelf.el
+++ b/twelf/x-symbol-twelf.el
@@ -5,83 +5,8 @@
 ;; $Id$
 ;;
 
-(defvar x-symbol-twelf-symbol-table 
-  '((arrowright () "->"  "\\<rightarrow>")
-    (longarrowright () "0->"  "\\<longrightarrow>")
-    (longarrowdblright () "==>" "\\<Longrightarrow>")
-    (logicaland     () "/\\" "\\<and>")
-    (logicalor      () "\\/" "\\<or>")
-    (equivalence    () "<->" "\\<equiv>")
-    (existential1   () "EX"  "\\<exists>")
-    (universal1     () "ALL"  "\\<forall>")
-    (bardash	    () "|-" "\\<turnstile>")
-    ;; some naughty ones, but probably what you'd like
-    ;; (a mess in words like "searching" "philosophy" etc!!)
-    (Gamma  () "Gamma" "\\<Gamma>")
-    (Delta  () "Delta" "\\<Delta>")
-    (Theta  () "Theta" "\\<Theta>")
-    (Lambda () "Lambda" "\\<Lambda>")
-    (Pi     () "Pi" "\\<Pi>")
-    (Sigma  () "Sigma" "\\<Sigma>")
-    (Phi    () "Phi" "\\<Phi>")
-    (Psi    () "Psi" "\\<Psi>")
-    (Omega  () "Omega" "\\<Omega>")
-    (alpha  () "alpha" "\\<alpha>")
-    (beta   () "beta" "\\<beta>")
-    (gamma  () "gamma" "\\<gamma>")
-    (delta  () "delta" "\\<delta>")
-    (epsilon1 () "epsilon" "\\<epsilon>")
-    (zeta   () "zeta" "\\<zeta>")
-    (eta    () "eta" "\\<eta>")
-    (theta1 () "theta" "\\<theta>")
-    (kappa1 () "kappa" "\\<kappa>")
-    (lambda () "lambda" "\\<lambda>")
-;    (mu     () "mu" "\\<mu>")
-;    (nu     () "nu" "\\<nu>")
-;    (xi     () "xi" "\\<xi>")
-;    (pi     () "pi" "\\<pi>")
-    (rho    () "rho" "\\<rho>")
-    (sigma  () "sigma" "\\<sigma>")
-    (tau    () "tau" "\\<tau>")
-    (phi1   () "phi" "\\<phi>")
-;    (chi    () "chi" "\\<chi>")
-    (psi    () "psi" "\\<psi>")
-    (omega  () "omega" "\\<omega>")))
-
-;; All the stuff X-Symbol complains about
-(defvar x-symbol-twelf-master-directory 'ignore)
-(defvar x-symbol-twelf-image-searchpath '("./"))
-(defvar x-symbol-twelf-image-cached-dirs '("images/" "pictures/"))
-(defvar x-symbol-twelf-image-keywords nil)
-(defvar x-symbol-twelf-font-lock-keywords nil)
-(defvar x-symbol-twelf-header-groups-alist nil)
-(defvar x-symbol-twelf-class-alist 
-  '((VALID "Twelf Symbol" (x-symbol-info-face))
-    (INVALID "no Twelf Symbol" (red x-symbol-info-face))))
-(defvar x-symbol-twelf-class-face-alist nil)
-(defvar x-symbol-twelf-electric-ignore nil)
-(defvar x-symbol-twelf-required-fonts nil)
-(defvar x-symbol-twelf-case-insensitive nil)
-;; Setting token shape prevents "philosophy" example, but still
-;; problems, e.g. delphi, false1.  (Pierre)
-(defvar x-symbol-twelf-token-shape '(?_ "[A-Za-z]+" . "[A-Za-z_]"))
-(defvar x-symbol-twelf-table x-symbol-twelf-symbol-table)
-(defun x-symbol-twelf-default-token-list (tokens) tokens)
-(defvar x-symbol-twelf-token-list 'x-symbol-twelf-default-token-list)
-(defvar x-symbol-twelf-input-token-ignore nil)
-
-;; internal stuff 
-(defvar x-symbol-twelf-exec-specs nil)
-(defvar x-symbol-twelf-menu-alist nil)
-(defvar x-symbol-twelf-grid-alist nil)
-(defvar x-symbol-twelf-decode-atree nil)
-(defvar x-symbol-twelf-decode-alist nil)
-(defvar x-symbol-twelf-encode-alist nil)
-(defvar x-symbol-twelf-nomule-decode-exec nil)
-(defvar x-symbol-twelf-nomule-encode-exec nil)
-
-(warn "Twelf support for X-Symbol is highly incomplete!  Please help improve it!
-Send improvements to x-symbol-twelf.el to proofgen@dcs.ed.ac.uk")
+;; FIXME: to revitalise this, see coq/x-symbol-coq.el
 
+(error "X-Symbol support for Twelf has been removed in this release, sorry.")
 
 (provide 'x-symbol-twelf)
-- 
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