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;; $State$ $Date$ $Revision$

(require 'proof)			; load generic parts


;; Adjust toolbar entries.  (Must be done before proof-toolbar is
;; loaded).

(eval-when-compile
  (defvar phox-toolbar-entries nil))

(eval-after-load "pg-custom"
  '(setq phox-toolbar-entries
    (assq-delete-all 'context phox-toolbar-entries)))


;; ======== User settings for PhoX ========
;;
;; Defining variables using customize is pretty easy.
;; You should do it at least for your prover-specific user options.
;;
;; proof-site provides us with two customization groups
;; automatically:  (based on the name of the assistant)
;;
;; 'phox        -  User options for PhoX Proof General
;; 'phox-config -  Configuration of PhoX Proof General
;;			   (constants, but may be nice to tweak)
;;
;; The first group appears in the menu
;;   ProofGeneral -> Customize -> PhoX
;; The second group appears in the menu:
;;   ProofGeneral -> Internals -> PhoX config
;;

(defcustom phox-prog-name "phox -pg"
  "*Name of program to run PhoX."
  :type 'file
  :group 'phox)

(defcustom phox-web-page
  "http://www.lama.univ-savoie.fr/~RAFFALLI/phox.html"
  "URL of web page for PhoX."
  :type 'string
  :group 'phox-config)

(defcustom phox-doc-dir
  "/usr/local/doc/phox"
  "The name of the root documentation directory for PhoX."
  :type 'string
  :group 'phox-config)

(defcustom phox-lib-dir
  "/usr/local/lib/phox"
  "The name of the root directory for PhoX libraries."
  :type 'string
  :group 'phox-config)

(defcustom phox-tags-program
  (concat phox-doc-dir "/tools/phox_etags.sh")
  "Program to run to generate TAGS table for proof assistant."
  :type 'string
  :group 'phox-config)

(defcustom phox-tags-doc
  t
  "*If non nil, tags table for PhoX text documentation is loaded."
  :type 'boolean
  :group 'phox-config)

(defcustom phox-etags
  (concat phox-doc-dir "/tools/phox_etags.sh")
  "Command to build tags table."
  :type 'string
  :group 'phox-config)

(require 'phox-fun)
(require 'phox-font)
(require 'phox-extraction)
(require 'phox-tags)
(require 'phox-outline)
(require 'phox-pbrpm)

;; default for tags [da: moved here to fix compilation 15/02/03]

(if phox-tags-doc
    (add-hook 'phox-mode-hook 'phox-tags-add-doc-table))


;; ----- PhoX specific menu

(defpgdefault menu-entries
  (cons
   phox-state-menu
   (cons
    phox-tags-menu
    (cons
     phox-extraction-menu
      nil)))
)

;;
;; ======== Configuration of generic modes ========
;;

(defun phox-config ()
  "Configure Proof General scripting for PhoX."
  (if phox-sym-lock-enabled
      (phox-sym-lock-start))
  (setq
   proof-prog-name phox-prog-name
   proof-prog-name-guess t
   proof-prog-name-ask nil
   proof-terminal-string		"."	; ends every command
   proof-script-command-end-regexp "[.]\\([ \t\n\r]\\)"
   proof-script-comment-start             "(*"
   proof-script-comment-end               "*)"
   proof-goal-command-regexp
    "\\`\\(Local[ \t\n\r]+\\)?\\(goal[ \t\n\r]\\|pro\\(p\\(osition\\)?\\|ve_claim\\)\\|lem\\(ma\\)?\\|fact\\|cor\\(ollary\\)?\\|theo\\(rem\\)?\\)"
   proof-save-command-regexp       "\\`save"
   proof-goal-with-hole-regexp
   (concat
    "\\`\\(Local[ \t\n\r]+\\)?\\(pro\\(p\\(osition\\)?\\|ve_claim\\)\\(osition\\)?\\|lem\\(ma\\)?\\|fact\\|cor\\(ollary\\)?\\|theo\\(rem\\)?\\)"
    phox-strict-comments-regexp
    phox-ident-regexp)
   proof-goal-with-hole-result     16
   proof-save-with-hole-regexp
   (concat
    "\\`save"
    phox-strict-comments-regexp
    phox-ident-regexp)
   proof-save-with-hole-result     8
   proof-ignore-for-undo-count     "\\`\\(constraints\\|flag\\|goals\\|pri\\(nt\\(_sort\\)?\\|ority\\)\\|eshow\\|search\\|depend\\|menu_\\|is_\\)"
   proof-non-undoables-regexp      "\\`\\(undo\\|abort\\)"
   proof-shell-error-regexp        "^\\([^ \n\t\r]* \\)?\\(\\(e\\|E\\)rror\\)\\|\\(\\(f\\|F\\)ailure\\)"
   proof-goal-command              "goal %s."
   proof-save-command              "save %s."
   proof-kill-goal-command         "abort."
   proof-showproof-command         "goals."
   proof-undo-n-times-cmd          "undo %s."
   proof-find-and-forget-fn        'phox-find-and-forget
   proof-find-theorems-command      "search \"%s\"."
   proof-auto-multiple-files       nil
   font-lock-keywords              phox-font-lock-keywords
   )
  (phox-init-syntax-table)
  (setq pbp-goal-command "intro %s;")
  (setq pbp-hyp-command "elim %s;"))

(defun phox-shell-config ()
  "Configure Proof General shell for PhoX."
  (setq
   ;proof-shell-cd-cmd              "cd \"%s\""
   proof-shell-annotated-prompt-regexp  "\\(>phox> \\)\\|\\(%phox% \\)"
   proof-shell-interrupt-regexp    "Interrupt"
   proof-shell-start-goals-regexp  "^\\(Here \\(are\\|is\\) the goal\\)\\|\\([0-9]+ new goals?\\)\\|\\([0-9]+ goals? possibly instanced\\)"
   proof-shell-end-goals-regexp  "^End of goals."
   proof-shell-quit-cmd            "quit."
   proof-shell-restart-cmd         "restart."
   proof-shell-proof-completed-regexp   "^.*^proved"
   ))


;;
;; ======== Defining the derived modes ========
;;

;; The name of the script mode is always <proofsym>-script,
;; but the others can be whatever you like.
;;
;; The derived modes set the variables, then call the
;; <mode>-config-done function to complete configuration.

(define-derived-mode phox-mode proof-mode
    "PhoX script"
     "Major mode for PhoX proofs.

\\{phox-mode-map}"
    (phox-config)
    (proof-config-done)
    (phox-setup-outline)
    (define-key phox-mode-map [(control j)]
      'phox-assert-next-command-interactive)
    ;; with the previous binding,
    ;; it is nice to do : xmodmap -e "keysym KP_Enter = Linefeed"

    (define-key phox-mode-map [(control c) (meta d)]
      'phox-delete-symbol-on-cursor))

(define-derived-mode phox-shell-mode proof-shell-mode
   "PhoX shell" nil
   (phox-shell-config)
   (proof-shell-config-done))

(define-derived-mode phox-response-mode proof-response-mode
  "PhoX response" nil
  (setq proof-response-font-lock-keywords phox-font-lock-keywords)
  (phox-sym-lock-start)
  (if (and (featurep 'phox-sym-lock) phox-sym-lock-enabled)
      (add-hook 'proof-shell-handle-delayed-output-hook
		'phox-sym-lock-font-lock-hook)
    )
  (proof-response-config-done))

(define-derived-mode phox-goals-mode proof-goals-mode
  "PhoX goals" nil
  (setq font-lock-keywords phox-font-lock-keywords)
  (phox-sym-lock-start)
  (if (and (featurep 'phox-sym-lock) phox-sym-lock-enabled)
      (add-hook 'pg-before-fontify-output-hook
		'phox-sym-lock-font-lock-hook)
    )
  (proof-goals-config-done))


;; A more sophisticated instantiation might set font-lock-keywords to
;; add highlighting, or some of the proof by pointing markup
;; configuration for the goals buffer.

; completions
; dans completions.el
;(setq completion-min-length 6)
;(setq completion-prefix-min-length 3) les mots de moins de 6 caractères
; ne sont pas pris en compte.  Les prefixes de moins de 3 caractères ne
; sont pas non plus pris en compte.

; (set-variable 'phox-completion-table
(defpgdefault completion-table
  (append phox-top-keywords phox-proof-keywords)
)

(provide 'phox)