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;; proof-site.el -- Loading stubs for Proof General.
;; Configuration for site and choice of provers.
;;
;; Copyright (C) 1998,9 LFCS Edinburgh.
;; Author: David Aspinall <da@dcs.ed.ac.uk>
;; Maintainer: Proof General maintainer <proofgen@dcs.ed.ac.uk>
;;
;; $Id$
;;
;; NB: Normally you will not need to edit this file.
;;
(unless (featurep 'proof-site) ; don't load twice
(require 'cl) ; we're going to need it sooner
; or later, and FSF doesn't
; autoload it properly.
(if (or (not (boundp 'emacs-major-version))
(< emacs-major-version 20))
(error "Proof General is not compatible with Emacs %s" emacs-version))
(defgroup proof-general nil
"Customization of Proof General."
:group 'external
:group 'processes
:prefix "proof-")
;; This customization group gathers together
;; the internals of Proof General which control
;; configuration to different proof assistants.
;; This is for development purposes rather than
;; user-level customization, so this group does
;; not belong to 'proof-general (or any other group).
(defgroup proof-general-internals nil
"Customization of Proof General internals."
:prefix "proof-")
;; Master table of supported assistants. May not enable both kinds of
;; Isabelle interfaces at the same time!
(defcustom proof-assistant-table
'(;; For demonstration instance of Proof General,
;; set PROOFGENERAL_ASSISANTS=demoisa.
;; To use Isabelle/Isar instead of classic Isabelle,
;; set PROOFGENERAL_ASSISANTS=isar
(demoisa "Isabelle Demo" "\\.ML$")
(isar "Isabelle/Isar" "\\.thy$")
(isa "Isabelle" "\\.ML$\\|\\.thy$")
(lego "LEGO" "\\.l$")
(coq "Coq" "\\.v$")
(plastic "Plastic" "\\.lf$"))
"*Proof General's table of supported proof assistants.
Extend this table to add a new proof assistant.
Each entry is a list of the form
(SYMBOL NAME AUTOMODE-REGEXP)
The NAME is a string, naming the proof assistant.
The SYMBOL is used to form the name of the mode for the
assistant, `SYMBOL-mode', run when files with AUTOMODE-REGEXP
are visited. SYMBOL is also used to form the name of the
directory and elisp file for the mode, which will be
PROOF-HOME-DIRECTORY/SYMBOL/SYMBOL.el
where `PROOF-HOME-DIRECTORY' is the value of the
variable proof-home-directory."
:type '(repeat (list symbol string string))
:group 'proof-general-internals)
;; Directories
(defun proof-home-directory-fn ()
"Used to set proof-home-directory"
(let ((s (getenv "PROOFGENERAL_HOME")))
(if s
(if (string-match "/$" s) s (concat s "/"))
(let ((curdir
(or
(and load-in-progress (file-name-directory load-file-name))
(file-name-directory (buffer-file-name)))))
(file-name-directory (substring curdir 0 -1))))))
(defcustom proof-home-directory
(proof-home-directory-fn)
"Directory where Proof General is installed. Ends with slash.
Default value taken from environment variable `PROOFGENERAL_HOME' if set,
otherwise based on where the file `proof-site.el' was loaded from.
You can use customize to set this variable."
:type 'directory
:group 'proof-general-internals)
(defcustom proof-images-directory
(concat proof-home-directory "images/")
"Where Proof General image files are installed. Ends with slash."
:type 'directory
:group 'proof-general-internals)
(defcustom proof-info-directory
(concat proof-home-directory "doc/")
"Where Proof General Info files are installed. Ends with slash."
:type 'directory
:group 'proof-general-internals)
;; Add the info directory to the end of Emacs Info path if need be.
;; It's easier to do this after Info has loaded because of the
;; complicated way the Info-directory-list is set.
(eval-after-load
"info"
'(or (member proof-info-directory Info-directory-list)
(progn
(setq Info-directory-list
(cons proof-info-directory
Info-directory-list))
;; Clear cache of info dir
(setq Info-dir-contents nil))))
;; A utility function. Is there an alternative?
(defun proof-string-to-list (s separator)
"Return the list of words in S separated by SEPARATOR.
If S is nil, return empty list."
(if s
(let ((end-of-word-occurence (string-match (concat separator "+") s)))
(if (not end-of-word-occurence)
(if (string= s "")
nil
(list s))
(cons (substring s 0 end-of-word-occurence)
(proof-string-to-list
(substring s
(string-match (concat "[^" separator "]")
s end-of-word-occurence))
separator))))))
(defcustom proof-assistants
;; FIXME: we could check that this setting is sensible.
(or (mapcar 'intern
(proof-string-to-list
(getenv "PROOFGENERAL_ASSISTANTS") " "))
(mapcar (lambda (astnt) (car astnt))
proof-assistant-table))
(concat
"*Choice of proof assistants to use with Proof General.
A list of symbols chosen from:"
(apply 'concat (mapcar (lambda (astnt)
(concat " '" (symbol-name (car astnt))))
proof-assistant-table))
".\nEach proof assistant defines its own instance of Proof General,
providing session control, script management, etc. Proof General
will be started automatically for the assistants chosen here.
To avoid accidently invoking a proof assistant you don't have,
only select the proof assistants you (or your site) may need.
You can select which proof assistants you want by setting this
variable before `proof-site.el' is loaded, or by setting
the environment variable `PROOFGENERAL_ASSISTANTS' to the
symbols you want, for example \"lego isa\". Or you can
edit the file `proof-site.el' itself.
Note: to change proof assistant, you must start a new Emacs session.")
:type (cons 'set
(mapcar (lambda (astnt)
(list 'const ':tag (car (cdr astnt)) (car astnt)))
proof-assistant-table))
:group 'proof-general)
;; Extend load path for the generic files.
(let ((proof-lisp-path
(concat proof-home-directory "generic/")))
(or (member proof-lisp-path load-path)
(setq load-path
(cons proof-lisp-path load-path))))
;; During compilation from the Makefile, generic is on the load path.
;; Add all of the prover directories.
;; FIXME: this doesn't work quite right. We want to test
;; whether we are running during a compilation. How?
; (eval-when-compile
; (dolist (assistant proof-assistant-table)
; (let ((path (concat proof-home-directory
; (concat (symbol-name (car assistant)) "/"))))
; (or (member path load-path)
; (setq load-path
; (cons path load-path))))))
;; Now add auto-loads and load-path elements to support the
;; proof assistants selected, and define a stub
(let ((assistants proof-assistants))
(while assistants
(let*
((assistant (car assistants)) ; compiler bogus warning here
(nameregexp
(or
(cdr-safe
(assoc assistant
proof-assistant-table))
(error "proof-site: symbol " (symbol-name assistant)
"is not in proof-assistant-table")))
(assistant-name (car nameregexp))
(regexp (car (cdr nameregexp)))
(sname (symbol-name assistant))
;; NB: File name for each prover is the same as its symbol name!
(elisp-file sname)
;; NB: Dir name for each prover is the same as its symbol name!
(elisp-dir sname)
;; NB: Mode name for each prover is <symbol name>-mode!
(proofgen-mode (intern (concat sname "-mode")))
;; NB: Customization group for each prover is its l.c.'d name!
(cusgrp-rt (substitute ?\- ?\ (downcase assistant-name)))
(cusgrp (intern cusgrp-rt))
(cus-internals (intern (concat cusgrp-rt "-config")))
;; Stub to do some automatic initialization and load
;; the specific code.
(mode-stub
`(lambda ()
,(concat
"Major mode for editing scripts for proof assistant "
assistant-name
".\nThis is a stub which loads the real function.")
(interactive)
;; Give a message and stop loading if proof-assistant is
;; already set: things go wrong if proof general is
;; loaded for more than one prover.
(cond
((boundp 'proof-assistant)
(unless (string-equal proof-assistant ,assistant-name)
;; If Proof General was partially loaded last time
;; and mode function wasn't redefined, be silent.
(message
(concat
,assistant-name
" Proof General error: Proof General already in use for "
proof-assistant))))
(t
;; Make a customization group for this assistant
(defgroup ,cusgrp nil
,(concat "Customization of user options for " assistant-name
" Proof General.")
:group 'proof-general)
;; And another one for internals
(defgroup ,cus-internals nil
,(concat "Customization of internal settings for "
assistant-name " configuration.")
:group 'proof-general-internals
:prefix ,(concat sname "-"))
;; Set the proof-assistant configuration variables
;; NB: tempting to use customize-set-variable: wrong!
;; Here we treat customize as extended docs for these
;; variables.
(setq proof-assistant ,assistant-name)
(setq proof-assistant-symbol (quote ,assistant))
;; Extend the load path, load the real mode and invoke it.
(setq load-path
(cons (concat proof-home-directory ,elisp-dir "/")
load-path))
(load-library ,elisp-file)
(,proofgen-mode))))))
(setq auto-mode-alist
(cons (cons regexp proofgen-mode) auto-mode-alist))
(fset proofgen-mode mode-stub)
(setq assistants (cdr assistants))
)))
;; WARNING: do not edit below here
;; (the next constant is set automatically)
(defconst proof-general-version "Proof General Version 3.1pre991216. Released by da."
"Version string identifying Proof General release.")
(provide 'proof-site)
) ; end unless
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