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;; interface-setup.el Interface wrapper for Isabelle Proof General
;;
;; This file 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, or (at your option)
;; any later version.
;;
;; Author: Markus Wenzel <wenzelm@in.tum.de>
;;
;; $Id$
;;
;;;
;;; X-Symbol
;;;
(if (string-match "XEmacs" emacs-version) ;current X-Symbol works with XEmacs only!
(let ((xsymbol-home (getenv "XSYMBOL_HOME"))
(xsymbol (getenv "PROOFGENERAL_XSYMBOL"))
(enable-var
(if (equal (getenv "PROOFGENERAL_ASSISTANTS") "isa")
'isa-x-symbol-enable 'isar-x-symbol-enable)))
;; setup the x-symbol package, if not already present
(if (and xsymbol-home
(not (equal xsymbol-home ""))
(not (fboundp 'x-symbol-initialize))
(not (get 'x-symbol 'x-symbol-initialized)))
(progn
(load (expand-file-name "lisp/x-symbol/auto-autoloads" xsymbol-home))
(push (expand-file-name "lisp/x-symbol" xsymbol-home) load-path)
(if (boundp 'data-directory-list)
(push (expand-file-name "etc/" xsymbol-home) data-directory-list))
(if (boundp 'Info-directory-list)
(push (expand-file-name "info/" xsymbol-home) Info-directory-list))
(if (not (boundp 'x-symbol-image-converter)) ;avoid confusing warning message
(customize-set-variable 'x-symbol-image-converter nil))
(x-symbol-initialize)))
;; tell Proof General about -x option
(if (and xsymbol (not (equal xsymbol "")))
(customize-set-variable enable-var (equal xsymbol "true")))))
;;
;; Proof General
;;
(if (not (featurep 'proof-site))
(load (concat (getenv "PROOFGENERAL_HOME") "/generic/proof-site.el")))
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