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mizar.el
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;;; mizar.el --- mizar.el -- Mizar Mode for Emacs
;;
;;; License: GPL (GNU GENERAL PUBLIC LICENSE)
;;
;;; Commentary:
;;
;; Emacs mode for authoring Mizar (www.mizar.org) articles.
;; Run C-h f mizar-mode for overview of commands.
;; Complete info, html, pdf and ps documentation is
;; downloadable from http://kti.ms.mff.cuni.cz/~urban/MizarModeDoc.tar.gz .
;; Browse it at http://ktilinux.ms.mff.cuni.cz/~urban/MizarModeDoc/html .
;;; History:
;;
;; Started by Bob Beck, [email protected] (beck@alberta) as
;; a mode for Unix version of Mizar-MSE.
;;
;; Since April 3 2000, rewritten and maintained by
;; Josef Urban (Josef do Urban at gmail dot com) for use with Mizar Version >= 6.
;;
;; Go to https://github.com/JUrban/mizarmode
;; to see complete revision history. The latest release is at
;; https://raw.github.com/JUrban/mizarmode/master/mizar.el .
;;; Usage
;;
;; If you obtained this with your Mizar distribution, just append
;; the .emacs file enclosed there to your .emacs.
;; Otherwise, the latest version of .emacs is downloadable from
;; https://raw.github.com/JUrban/mizarmode/master/.emacs .
;;; TODO:
;;
;; better indentation,
(defvar mizar-emacs
(if (featurep 'xemacs)
'xemacs
(if (featurep 'dos-w32)
'winemacs
'gnuemacs))
"The variant of Emacs we're running.
Valid values are 'gnuemacs,'Xemacs and 'winemacs.")
(eval-when-compile
(require 'compile)
(require 'font-lock)
(require 'imenu)
(require 'info)
(require 'shell)
)
(require 'comint)
(require 'cl)
(require 'easymenu)
(require 'etags)
(require 'hideshow)
(require 'dabbrev)
(require 'executable)
(require 'term)
(require 'imenu)
(if (eq mizar-emacs 'xemacs)
(require 'speedbar) ;; no NOERROR in xemacs
(require 'speedbar nil t)) ;;noerror if not present
;;;; variables and customization
(defgroup mizar nil
"Major mode for authoring Mizar articles"
:group 'languages)
(defgroup mizar-running nil
"Running the Mizar utilities"
:group 'mizar)
(defgroup mizar-indenting nil
"Indenting in the Mizar mode"
:group 'mizar)
(defgroup mizar-files nil
"Files and paths settings in the Mizar mode"
:group 'mizar)
(defgroup mizar-grep nil
"Grepping in the Mizar mode"
:group 'mizar)
(defgroup mizar-faces nil
"Faces for Mizar keywords"
:group 'mizar)
(defgroup mizar-constructor-explanations nil
"Constructor explanations for the Mizar mode"
:group 'mizar)
(defgroup mizar-mml-query nil
"Support for MML Query in the Mizar mode"
:group 'mizar)
(defgroup mizar-proof-advisor nil
"Mizar Proof Advisor settings"
:group 'mizar)
(defgroup mizar-skeletons nil
"Skeleton settings for the Mizar mode"
:group 'mizar)
(defgroup mizar-speedbar nil
"Speedbar support for the Mizar mode"
:group 'mizar)
(defgroup mizar-education nil
"Options for nonstandard Mizaring used when teaching Mizar"
:group 'mizar)
(defgroup mizar-remote nil
"Options for running Mizar and related utilities remotely"
:group 'mizar)
(defcustom mizar-newline-indents nil
"*Newline indents."
:type 'boolean
:group 'mizar-indenting)
(defcustom mizar-semicolon-indents nil
"*Semicolon indents."
:type 'boolean
:group 'mizar-indenting)
(defcustom mizar-indent-width 2
"*Indentation width for Mizar articles."
:type 'integer
:group 'mizar-indenting)
(defcustom mizar-align-labels nil
"*Indenting puts labels at the beginning of lines."
:type 'boolean
:group 'mizar-indenting)
(defcustom mizar-abstracts-use-view t
"*View-mode is used for Mizar abstracts."
:type 'boolean
:group 'mizar)
(defcustom mizar-launch-speedbar nil
"Launch speedbar upon entering mizar-mode for the first time.
Speedbar can be (de)activated later by running the command `speedbar'."
:type 'boolean
:group 'mizar-speedbar)
(defcustom mizar-show-output 4
"*Determines the size of the output window after processing.
Possible values: \"none\", 4, 10, \"all\"."
:type '(choice (const :tag "no output" "none")
(const :tag "all output" "all")
(const :tag "4 lines" 4)
(const :tag "10 lines" 10))
:group 'mizar-running)
(defcustom mizar-goto-error "next"
"*What error to move to after processing.
Possible values are none, first, next, previous."
:type '(choice (const :tag "next error after point" "next")
(const :tag "first error in the article" "first")
(const :tag "first error before point" "previous")
(const :tag "no movement" "none"))
:group 'mizar-running)
(defcustom mizar-verifier "verifier"
"*The default Mizar verifier used to check Mizar articles.
This is used in the `mizar-it' function."
:type 'string
:group 'mizar-running)
(defcustom makeenv "makeenv"
"*Program used for creating the article environment.
This is used in the `mizar-it' function."
:type 'string
:group 'mizar-running)
(defcustom mizar-parallel-options " -j2 -e1 "
"*Options passed to the mizp.pl Mizar parallizer.
This is used in the `mizar-it-parallel' function.
Run mizp.pl --man to get overview of the options."
:type 'string
:group 'mizar-running)
(defcustom mizfiles
(file-name-as-directory (substitute-in-file-name "$MIZFILES"))
"The directory where MML is installed."
:type 'string
:group 'mizar-files)
(defcustom mizar-allow-long-lines t
"*Makes Mizar verifier and other utilities allow lines longer than 80 chars.
This is useful when writing an article, however, you should
remove long lines before submitting your article to MML."
:type 'boolean
:group 'mizar-running)
(defcustom mizar-quick-run t
"*Speeds up verifier by not displaying its intermediate output.
Can be toggled from the menu, however the nil value is no
longer supported and may be deprecated (e.g. on Windows)."
:type 'boolean
:group 'mizar-running)
(defcustom mizar-grep-case-sensitive t
"*Tells if MML grepping is case sensitive or not."
:type 'boolean
:group 'mizar-grep
)
(defcustom mizar-sb-in-abstracts t
"Tells if we use speedbar for Mizar abstracts."
:type 'boolean
:group 'mizar-speedbar)
(defcustom mizar-sb-in-mmlquery t
"Tells if we use speedbar for MMLQuery abstracts."
:type 'boolean
:group 'mizar-speedbar)
(defcustom mizar-do-expl nil
"*Use constructor explanations.
Put constructor format of 'by' items as properties after verifier run.
The constructor representation can then be displayed
\(according to the value of `mizar-expl-kind') and queried."
:type 'boolean
:group 'mizar-constructor-explanations)
(defcustom mizar-expl-kind 'sorted
"*Variable controlling the display of constructor representation of formulas.
Has effect iff `mizar-do-expl' is non-nil.
Possible values are now
'sorted for sorted list of constructors in absolute notation.
'constructors for list of constructors in absolute notation,
'mmlquery behaves as 'sorted, but constructors are inserted
directly into the *mmlquery* input buffer.
The mmlquery interpreter has to be installed for this,
see `mmlquery-program-name'.
'translate for expanded formula in absolute notation,
'raw for the internal Mizar representation,
'xml for xml internal Mizar representation
The values 'xml and 'raw are for debugging only, do
not use them to get constructor explanations."
:type '(choice (const :tag "sorted list of constructors" sorted)
(const :tag "unsorted list of constructors" constructor)
(const :tag "mmlquery input" mmlquery)
(const :tag "translated formula" translate)
(const :tag "nontranslated (raw) formula" raw)
(const :tag "nontranslated (xml) formula" xml))
:group 'mizar-constructor-explanations)
(defcustom mizar-underline-expls nil
"*If t, the clickable explanation spots in mizar buffer are underlined.
Has effect iff `mizar-do-expl' is non-nil."
:type 'boolean
:group 'mizar-constructor-explanations)
(defcustom byextent 1
"Size of the clickable constructor explanation region.
`mizar-do-expl' has to be non-nil for this.
When `mizar-underline-expls' is non-nil, it is also underlined."
:type 'integer
:group 'mizar-constructor-explanations)
(defvar merak-url "http://merak.pb.bialystok.pl/cgi-bin/mmlquery/")
(defvar megrez-url "http://megrez.mizar.org/cgi-bin/")
(defcustom query-url merak-url
"*URL for the MMLQuery HTML browser."
:type 'string
:group 'mizar-mml-query)
(defcustom query-text-output nil
"If non-nil, text output is required from MML Query."
:type 'boolean
:group 'mizar-mml-query)
(defcustom mizar-query-browser nil
"*Browser for MML Query, we allow 'w3 or default."
:type 'symbol
:group 'mizar-mml-query)
(defcustom mmlquery-abstracts (concat mizfiles "gab/")
"*Directory containing the mmlquery abstracts for browsing."
:type 'string
:group 'mizar-files
:group 'mizar-mml-query)
;; (defcustom advisor-url "http://lipa.ms.mff.cuni.cz/cgi-bin/mycgi1.cgi"
;; "*URL for the Mizar Proof Advisor."
;; :type 'string
;; :group 'mizar-proof-advisor)
(defcustom advisor-server "lipa.ms.mff.cuni.cz"
"Server for the Mizar Proof Advisor."
:type 'string
:group 'mizar-proof-advisor)
(defcustom advisor-cgi "/cgi-bin/mycgi1.cgi"
"Path to the advisor CGI script on `advisor-server'."
:type 'string
:group 'mizar-proof-advisor)
(defcustom advisor-limit 30
"*The number of hits you want Mizar Proof Advisor to send you."
:type 'integer
:group 'mizar-proof-advisor)
(defcustom mizar-use-momm nil
"*If t, errors *4 are clickable, trying to get MoMM's hints.
MoMM should be installed for this."
:type 'boolean
:group 'mizar-running)
(defcustom mizar-momm-dir (concat mizfiles "MoMM/")
"*Directory containing the MoMM distribution."
:type 'string
:group 'mizar-files)
(defvar mizar-mode-abbrev-table nil
"Abbrev table in use in Mizar-mode buffers.")
(define-abbrev-table 'mizar-mode-abbrev-table ())
(defcustom mizar-main-color (face-foreground font-lock-function-name-face)
"*Color used for `mizar-main-keywords'."
:type 'color
:group 'mizar-faces)
(defcustom mizar-block-color (face-foreground font-lock-keyword-face)
"*Color used for `mizar-block-keywords'."
:type 'color
:group 'mizar-faces)
(defcustom mizar-normal-color
(face-foreground font-lock-variable-name-face)
"*Color used for `mizar-normal-keywords'."
:type 'color
:group 'mizar-faces)
(defcustom mizar-skeleton-color mizar-normal-color
"*Color used for `mizar-skeleton-keywords'."
:type 'color
:group 'mizar-faces)
(defcustom mizar-formula-color
(if (and (boundp 'font-lock-background-mode)
(eq font-lock-background-mode 'dark))
"LightSkyBlue" "Orchid")
"*Color used for `mizar-formula-keywords'."
:type 'color
:group 'mizar-faces)
(defcustom mizar-environment-keywords
(list "schemes" "constructors" "definitions"
"theorems" "vocabularies" "requirements" "registrations"
"notations")
"*Keywords starting mizar environmental items."
:type '(repeat string)
:group 'mizar-faces)
(defcustom mizar-main-keywords
(list "theorem" "scheme" "definition" "registration" "notation" "axiom")
"*Keywords starting main mizar text items."
:type '(repeat string)
:group 'mizar-faces)
(defcustom mizar-block-keywords
(list "proof" "now" "end" "hereby" "case" "suppose")
"*Keywords for Mizar block starts and ends."
:type '(repeat string)
:group 'mizar-faces)
(defcustom mizar-formula-keywords
(list "for" "ex" "not" "&" "or" "implies" "iff" "st" "holds" "being" "does")
"*Keywords for logical symbols in Mizar formulas."
:type '(repeat string)
:group 'mizar-faces)
(defcustom mizar-skeleton-keywords
(list "assume" "cases" "given" "hence" "let" "per" "take" "thus")
"*Keywords denoting skeleton proof steps."
:type '(repeat string)
:group 'mizar-faces)
(defcustom mizar-normal-keywords
(list
"and" "antonym" "attr" "as" "be" "begin" "canceled" "cluster"
"coherence" "compatibility" "consider" "consistency"
"contradiction" "correctness" "def" "deffunc"
"defpred" "environ" "equals" "existence"
"func" "if" "identify" "irreflexivity"
"it" "means" "mode" "of" "otherwise" "over"
"pred" "provided" "qua" "reconsider" "redefine" "reduce" "reducibility" "reflexivity"
"reserve" "struct" "such" "synonym"
"that" "then" "thesis" "when" "where" "with""is"
"associativity" "commutativity" "connectedness" "irreflexivity" "to"
"reflexivity" "symmetry" "sethood" "uniqueness" "transitivity" "idempotence"
"asymmetry" "projectivity" "involutiveness")
"*Mizar keywords not mentioned in other place."
:type '(repeat string)
:group 'mizar-faces)
(defvar mizar-mode-syntax-table nil)
(defvar mizar-mode-abbrev-table nil)
(defvar mizar-mode-map nil "Keymap used by mizar mode..")
;; current xemacs has no custom-set-default
(if (fboundp 'custom-set-default)
(progn
; ;; this gets rid of the "Keep current list of tag tables" message
; ;; when working with two tag tables
(custom-set-default 'tags-add-tables nil)
; ;; this shows all comment lines when hiding proofs
(custom-set-default 'hs-hide-comments-when-hiding-all nil)
; ;; this prevents the default value, which is hs-hide-initial-comment-block
(custom-set-default 'hs-minor-mode-hook nil))
(custom-set-variables
'(tags-add-tables nil)
'(hs-hide-comments-when-hiding-all nil)
'(hs-minor-mode-hook nil)))
(defun mizar-set-indent-width (to)
"Set indent width to TO."
(interactive)
(setq mizar-indent-width to))
(if mizar-mode-syntax-table
()
(let ((table (make-syntax-table)))
(modify-syntax-entry ?\" "_" table)
(modify-syntax-entry ?: ". 12" table)
(modify-syntax-entry ?\n "> " table)
(modify-syntax-entry ?\^m "> " table)
(setq mizar-mode-syntax-table table)))
(define-abbrev-table 'mizar-mode-abbrev-table ())
(defun mizar-mode-variables ()
"The variables used by mizar-mode."
(set-syntax-table mizar-mode-syntax-table)
(setq local-abbrev-table mizar-mode-abbrev-table)
(make-local-variable 'paragraph-start)
(setq paragraph-start (concat "^::::\\|^$\\|" page-delimiter)) ;'::..'
(make-local-variable 'paragraph-separate)
(setq paragraph-separate paragraph-start)
(make-local-variable 'paragraph-ignore-fill-prefix)
(setq paragraph-ignore-fill-prefix t)
(make-local-variable 'indent-line-function)
(setq indent-line-function 'mizar-indent-line)
(make-local-variable 'comment-start)
(setq comment-start "::")
(make-local-variable 'comment-start-skip)
(setq comment-start-skip "::+ *")
(make-local-variable 'comment-column)
(setq comment-column 48)
(make-local-variable 'comment-indent-function)
(setq comment-indent-function 'mizar-comment-indent)
(setq tags-case-fold-search nil)
; (set (make-local-variable 'tool-bar-map) mizar-tool-bar-map)
(make-local-variable 'font-lock-defaults)
(setq font-lock-defaults
'(mizar-font-lock-keywords nil nil ((?_ . "w"))))
)
(defun mizar-mode-commands (map)
"Set up some initial key bindings (in the keymap MAP) for
common mizar editing functions."
(define-key map "\t" 'mizar-indent-line)
(define-key map ";" 'mizar-semicolon)
(define-key map "\r" 'mizar-newline))
(if mizar-mode-map
nil
(setq mizar-mode-map (make-sparse-keymap))
(define-key mizar-mode-map "\C-c\C-m" 'mizar-it)
(define-key mizar-mode-map "\C-cj" 'mizar-it-parallel)
(define-key mizar-mode-map "\C-cc" 'mizar-compile)
(define-key mizar-mode-map "\C-c\C-n" 'mizar-next-error)
(define-key mizar-mode-map "\C-c\C-p" 'mizar-previous-error)
(define-key mizar-mode-map "\C-c\C-e" 'mizar-strip-errors)
(define-key mizar-mode-map "\C-c\C-d" 'mizar-hide-proofs)
(define-key mizar-mode-map "\C-cp" 'mizar-hide-all-proofs)
(define-key mizar-mode-map "\C-cg" 'mizar-grep-abs)
(define-key mizar-mode-map "\C-c\C-g" 'mizar-grep-full)
(define-key mizar-mode-map "\C-cb" 'mizar-grep-gab)
(define-key mizar-mode-map "\C-ci" 'mizar-grep-abs-full-items)
(define-key mizar-mode-map "\C-c\C-c" 'comment-region)
(define-key mizar-mode-map "\C-c\C-f" 'mizar-findvoc)
(define-key mizar-mode-map "\C-c\C-l" 'mizar-listvoc)
(define-key mizar-mode-map "\C-c\C-t" 'mizar-constr)
(define-key mizar-mode-map "\C-c\C-h" 'mizar-irrths)
(define-key mizar-mode-map "\C-c\C-v" 'mizar-irrvoc)
(define-key mizar-mode-map "\C-c\C-i" 'mizar-relinfer)
(define-key mizar-mode-map "\C-c\C-o" 'mizar-trivdemo)
(define-key mizar-mode-map "\C-c\C-s" 'mizar-reliters)
(define-key mizar-mode-map "\C-c\C-b" 'mizar-chklab)
(define-key mizar-mode-map "\C-c\C-y" 'mizar-relprem)
(define-key mizar-mode-map "\C-c\C-a" 'mizar-inacc)
(define-key mizar-mode-map "\C-c\C-z" 'mizar-make-theorem-summary)
(define-key mizar-mode-map "\C-c\C-r" 'mizar-make-reserve-summary)
(define-key mizar-mode-map "\C-cr" 'mizar-it-remote)
(define-key mizar-mode-map "\C-ca" 'mizar-remote-solve-atp)
(define-key mizar-mode-map "\C-ch" 'mizar-browse-remote)
(define-key mizar-mode-map "\C-ce" 'mizar-show-environ)
(define-key mizar-mode-map "\C-cs" 'mizar-insert-skeleton)
(define-key mizar-mode-map "\C-cu" 'mizar-run-all-irr-utils)
(define-key mizar-mode-map "\M-;" 'mizar-symbol-def)
(define-key mizar-mode-map "\M-\C-i" 'mizar-ref-complete)
(define-key mizar-mode-map "\C-c\C-q" 'query-start-entry)
(if (eq mizar-emacs 'xemacs)
(progn
(define-key mizar-mode-map [button3] 'mizar-mouse-symbol-def)
(define-key mizar-mode-map [(shift button3)] 'mizar-mouse-direct-symbol-def)
(define-key mizar-mode-map [(shift button1)] 'mizar-mouse-direct-show-ref)
; (define-key mizar-mode-map [(shift button2)] 'mouse-find-tag-history)
)
(define-key mizar-mode-map [mouse-3] 'mizar-mouse-symbol-def)
(define-key mizar-mode-map [(shift down-mouse-3)] 'mizar-mouse-direct-symbol-def)
(define-key mizar-mode-map [(shift down-mouse-1)] 'mizar-mouse-direct-show-ref)
; (define-key mizar-mode-map [(shift down-mouse-2)] 'mouse-find-tag-history)
; (define-key mizar-mode-map [double-mouse-1] 'mizar-mouse-ref-constrs)
)
(define-key mizar-mode-map "\M-." 'mizar-show-ref)
(define-key mizar-mode-map "\C-c." 'mizar-show-ref-constrs)
(mizar-mode-commands mizar-mode-map))
(defvar mizar-tag-ending ";"
"End of the proper tag name in mizsymbtags and mizreftags.
Used for exact completion.")
(defun miz-complete ()
"Used for exact tag completion."
(interactive )
(if (active-minibuffer-window)
(progn
(set-buffer (window-buffer (active-minibuffer-window)))
(insert mizar-tag-ending)
(minibuffer-completion-help))))
(define-key minibuffer-local-completion-map ";" 'miz-complete)
;;;;;;;;;;;;;;;;;;;;; utilities ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; destructive!
(defun unique (l1)
(let ((l1 l1))
(while l1
(setq l1 (setcdr l1 (delete (car l1) (cdr l1))))))
l1)
(defun file-size (fname)
"Size of a file FNAME."
(elt (file-attributes fname) 7))
(defun file-mtime (fname)
"Modification time of a file FNAME."
(elt (file-attributes fname) 5))
(defun test-list1 (test l1)
"Returns the sublist of L1 consisting of those elements satisfying TEST."
;; Loop without recursion probably better than previous
(let ((l2 ()))
(while l1
(if (funcall test (car l1))
(setq l2 (cons (car l1) l2)))
(setq l1 (cdr l1)))
(reverse l2)))
(defun remove-from (pos l1)
"Destructively deletes members from POS on in L1."
(let* ((l2 l1)
(end (nthcdr (- pos 1) l2)))
(if (consp end)
(setcdr end nil))
l2))
;; reporting stuff stolen from delphi.el
(defvar mizar-progress-last-reported-point nil
"The last point at which progress was reported.")
(defun mizar-progress-start ()
"Initialize progress reporting."
(setq mizar-progress-last-reported-point nil))
(defun mizar-progress-done (&rest msgs)
"Finalizes progress reporting; contents of MSGS are output as messages."
(setq mizar-progress-last-reported-point nil)
(if (null msgs)
(message "")
(apply #'message msgs)))
(defun mizar-step-progress (p desc step-size)
;; If enough distance has elapsed since the last reported point,
;; then report the current progress to the user.
(cond ((null mizar-progress-last-reported-point)
;; This is the first progress step.
(setq mizar-progress-last-reported-point p))
(;(and mizar-verbose
(>= (abs (- p mizar-progress-last-reported-point)) step-size)
;; Report the percentage complete.
(setq mizar-progress-last-reported-point p)
(message "%s %s ... %d%%"
desc (buffer-name) (/ (* 100 p) (point-max))))))
;;;;;;;;;;;; indentation (pretty poor) ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(defvar mizar-label-regexp "\\b[a-zA-Z_'0-9]+:"
"A regexp matching mizar labels.")
(defun mizar-indent-line ()
"Indent current line as Mizar code."
(interactive)
(let ((indent (mizar-indent-level))
(pos (- (point-max) (point))) beg)
(beginning-of-line)
(setq beg (point))
(skip-chars-forward " \t")
(if (and mizar-align-labels (looking-at mizar-label-regexp))
(let ((lab (match-string 0)))
(goto-char (match-end 0))
(skip-chars-forward " \t")
(delete-region beg (point))
(insert lab)
(if ( > indent (length lab))
(mizar-indent-to (- indent (length lab)))
(insert " ")))
(if (zerop (- indent (current-column)))
nil
(delete-region beg (point))
(mizar-indent-to indent)))
; (indent-to (+ 3 indent)))
(if (> (- (point-max) pos) (point))
(goto-char (- (point-max) pos)))
))
(defun mizar-indent-to (indent)
"Insert a space using INDENT."
(insert-char 32 indent) ) ; 32 is space...cannot use tabs
(defvar mizar-environment-kw-regexp
(concat "\\b" (regexp-opt mizar-environment-keywords t) "\\b")
"Regexp matching environmental keywords.")
(defvar mizar-main-kw-regexp
(concat "\\b" (regexp-opt mizar-main-keywords t) "\\b")
"Regexp matching main keywords.")
(defun mizar-indent-level ()
"Compute mizar indentation level."
(save-excursion
(beginning-of-line)
(skip-chars-forward " \t")
(cond
((looking-at "::::::") 0) ;Large comment starts
((looking-at "::") (current-column)) ;Small comment starts
((looking-at mizar-main-kw-regexp) 0)
((looking-at mizar-environment-kw-regexp) 1)
((looking-at "\\b\\(environ\\|reserve\\|begin\\)\\b") 0)
((bobp) 0) ;Beginning of buffer
(t
(let ((empty t) ind more less res)
;; See previous indentation
(cond ((looking-at "end;") (setq less t))
((looking-at
"\\b\\(proof\\|now\\|hereby\\|case\\|suppose\\)\\b")
(setq more (match-string 0))))
;; Find previous noncommented line
(while empty
(forward-line -1)
(beginning-of-line)
(cond
((bobp) (setq empty nil))
((and mizar-align-labels (looking-at mizar-label-regexp))
(goto-char (match-end 0))
(skip-chars-forward " \t")
(setq empty nil))
(t
(skip-chars-forward " \t")
(if (not (looking-at "\\(::\\|\n\\)"))
(setq empty nil)))))
(if (bobp)
(setq ind 0) ;Beginning of buffer
(setq ind (current-column))) ;Beginning of clause
;; See its beginning
; (if (and more (= ind 2) (string-equal more "proof"))
; 0 ;proof begins inside theorem
;; Real mizar code
(cond ((looking-at "\\b\\(proof\\|now\\|hereby\\|case\\|suppose\\)\\b")
(setq res (+ ind mizar-indent-width)))
((or (looking-at mizar-main-kw-regexp)
(looking-at mizar-environment-kw-regexp)
(looking-at "\\b\\(reserve\\|begin\\)\\b"))
(setq res (+ ind 2)))
(t (setq res ind)))
(if less (max (- ind mizar-indent-width) 0)
res)
))
;)
)))
(defun mizar-comment-indent ()
"Compute mizar comment indentation."
(cond ((looking-at "::::::") 0)
((looking-at "::::") (mizar-indent-level))
(t
(save-excursion
(skip-chars-backward " \t")
;; Insert one space at least, except at left margin.
(max (+ (current-column) (if (bolp) 0 1))
comment-column)))
))
(defun mizar-indent-buffer ()
"Indent the entire mizar buffer."
(interactive )
( indent-region (point-min) (point-max) nil))
(defun mizar-newline ()
"Terminate the current line with a newline and indent the next."
(interactive "*")
;; Remove trailing spaces
(delete-horizontal-space)
(newline)
(mizar-bubble-ref-incremental)
;; Indent both the (now) previous and current line first.
(when mizar-newline-indents
(save-excursion
(previous-line 1)
(mizar-indent-line))
(mizar-indent-line)))
(defun mizar-semicolon (&optional arg)
"Indent if `mizar-semicolon-indents' and insert ARG semicolons."
(interactive "*p")
(self-insert-command (prefix-numeric-value arg))
(if mizar-atp-completion
(mizar-atp-autocomplete))
(mizar-bubble-ref-incremental)
(if mizar-semicolon-indents
(mizar-indent-line)))
;;;;;;;;;;;;;;;; end of indentation ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;;;;;;;;;;;;;; skeletons ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Special lisp parser "lisppars" is used for this
;;; Howto TEST changes to this:
;; * Run lisppars on all accommodated articles - creates .lsp
;; * cat all .lsp into 00all.lsp - quite big
;; * Try Elisp 'read on all lines of 00all.lsp - e.g.
;; (while (not (eobp)) (read (current-buffer)) (forward-line))
;; if OK, lisparse produces only valid lisp expressions
;; * Try calling the rest of functions used for creating
;; the skeleton string - see 'mizar-insert-skeleton for them -
;; ** mainly: mizar-parse-fla:
;; (while (not (eobp))
;; (mizar-parse-fla (cdr (read (current-buffer)))) (forward-line))
;; ** then mizar-default-skeleton-items:
;; (while (not (eobp)) (mizar-default-skeleton-items
;; (car (mizar-parse-fla (cdr (read (current-buffer)))))) (forward-line))
;; ** and finally mizar-skeleton-string:
;; (while (not (eobp)) (mizar-skeleton-string (mizar-default-skeleton-items
;; (car (mizar-parse-fla (cdr (read (current-buffer))))))) (forward-line))
;; * the resulting strings should be valid proof skeletons giving only *4
;; errors, but I haven't written the script which would actually
;; check this so far
;;; TODO:
;; * Have some language for specifying skeleton-creating
;; functions, to allow users (and machines) to define their
;; own custom skeletons.
;;
;; * Our parsing ends at the level of atomic formulas now, both because
;; it is much easier to implement within the current Mizar parser,
;; and because it simplifies the pretty printing in Emacs.
;; So we should extend it to full parsing eventually.
;;
;; * Add e.g. definitional expansions, when the full parsing is done.
;; * Handle thesis in cases, when it is not explicit - e.g. correctness
;; conditions.
;;
;; * When both the macro language and the full parsing is done,
;; do machine learning of optimal skeletons on MML, and be adaptive.
(defvar mizar-binary-connectives '(iff implies or &))
(defvar mizar-quantifiers '(for ex))
(defvar mizar-logical-constants '(thesis contradiction \?))
(defvar mizar-connectives
(append mizar-binary-connectives mizar-quantifiers mizar-logical-constants
'(st holds not))
"Symbols for Mizar logical connectives.")
(defun parse-fla-with (fla connectives)
"The connectives CONNECTIVES come from the lowest priority here, i.e. 'iff comes first."
(if connectives
(let* (tmp (conn1 (car connectives)) (restconn (cdr connectives))
(fla (parse-fla-with fla restconn))
(beg (car fla)) (conn (cadr fla)))
(if (eq conn conn1)
(progn
(setq beg (cons conn (list beg))
fla (cdr fla))
(while (eq conn conn1)
(setq tmp (parse-fla-with (cdr fla) restconn)
beg (append beg (list (car tmp)))
fla (cdr tmp)
conn (if fla (car fla) nil)))
(cons beg fla))
fla))
(get-first-formula fla)))
(defun get-first-formula (fla)
"Parse the first quantified, atomic, bracketed or negated FLA into a list.
Return list of the rest unparsed, with added car being the parsed first."
(let ((beg (car fla)))
(cond
((listp beg) fla)
((or (stringp beg) (memq beg mizar-logical-constants))
(cons (list beg) (cdr fla)))
((eq 'not beg)
(let ((cont (get-first-formula (cdr fla))))
(cons (list 'not (car cont)) (cdr cont))))
((and (eq 'does beg) (eq 'not (cadr fla)))
(let ((cont (get-first-formula (cddr fla))))
(cons (list 'does 'not (car cont)) (cdr cont))))
((eq 'ex beg)
(let ((tmp (parse-formula (cdddr fla))))
(cons (list 'ex (cadr fla) 'st (car tmp)) (cdr tmp))))
((eq 'for beg)
(let (rest (start (list 'for (cadr fla))))
(if (eq 'st (third fla))
(setq fla (parse-formula (cdddr fla))
start (nconc start (list 'st (car fla)))
rest (cdr fla))
(setq rest (cddr fla)))
(if (eq 'holds (car rest))
(setq start (nconc start (list 'holds))
rest (cdr rest)))
(setq rest (parse-formula rest))
(cons (nconc start (list (car rest))) (cdr rest))))
(t (error "Bad formula: %s" (prin1-to-string fla))))))
(defun parse-formula (fla)
"Return the tree of the longest parsable initial segment of FLA.
The rest is returned as cdr.
The lists arising from having parenthesis must have already been handled here."
(let ((res (get-first-formula fla)))
(if (cdr res)
(parse-fla-with res mizar-binary-connectives)
res)))
(defun mizar-parse-protect-brackets (fla)
"Replace sublists in FLA with parsed sublists beginning with
'PAR recursively. Exceptions are sublist starting with 'Q, which
denote qualified segments."
(if (or (not (listp fla)) (eq 'Q (car fla))) fla
(cons 'PAR (parse-formula (mapcar 'mizar-parse-protect-brackets fla)))))
(defun mizar-parse-fla (fla)
"The top-level function for parsing lisppars output."
(parse-formula (mapcar 'mizar-parse-protect-brackets fla)))
(defun current-line ()
"Return current line number."
(+ (count-lines 1 (point))
(if (= (current-column) 0) 1 0)))
(defun mizar-tmp-being-hack (txt)
"Replace occurrences of `be' by `being' in the text TXT.
This is a temporary hack; it won't be needed after the be2being
fixes to Mizar parser are published."
(replace-regexp-in-string " +be " " being " txt))
(defun mizar-parse-region-fla (beg end)
"Call the lisppars utility to parse a Mizar formula starting at BEG.
BEG must be a start of a top-level sentence, parsing subformulas or
definiens formulas is not handled now.
END is not needed for parsing but for annotating the result
with the position, where the skeleton of its proof should start.
See `mizar-insert-skeleton' for more."
(interactive "r")
(save-excursion
(goto-char beg)
(let (fla (bline (current-line)) (bcol (+ 1 (current-column)))
(lspname (concat (file-name-sans-extension (buffer-file-name))
".lsp" )))
(mizar-it "lisppars" nil nil t)
(or (file-readable-p lspname)
(error "The lisppars utility failed, unknown error!"))
(with-temp-buffer
(insert-file-contents lspname)
(goto-char (point-min))
(unless (re-search-forward (concat "^((pos " (int-to-string bline) " .*")
(point-max) t)
(error "No formula starting at line %d" bline))
;; car is position
(setq fla (mizar-parse-fla
(cdr (read (mizar-tmp-being-hack (match-string 0)))))))
(goto-char end)
(list end (car fla))))) ;; fla is singleton
(defun mizar-pp-types (types)
(or (eq 'Q (car types))
(error "Bad qualified segment: %s" (prin1-to-string types)))
(mapconcat 'car (cdr types) ""))
(defun mizar-pp-parsed-fla (fla)
(if (stringp fla) (concat fla " ")
(let ((beg (car fla)))
(cond
((stringp beg) beg)
((eq 'PAR beg)
(concat "(" (mizar-pp-parsed-fla (cadr fla)) ")"))
((eq 'Q beg)
(mizar-pp-types fla))
((eq 'not beg)
(concat "not " (mizar-pp-parsed-fla (cadr fla))))
((and (eq 'does beg) (eq 'not (cadr fla)))
(concat "does not " (mizar-pp-parsed-fla (caddr fla))))
((memq beg mizar-logical-constants) (symbol-name beg))
((memq beg mizar-binary-connectives)
(mapconcat 'mizar-pp-parsed-fla (cdr fla)
(concat " " (symbol-name beg) " ")))
((eq 'ex beg)
(concat "ex " (mizar-pp-types (cadr fla)) "st "
(mizar-pp-parsed-fla (fourth fla))))
((eq 'for beg)
(let* ((st_occurs (eq 'st (third fla)))
(rest (if st_occurs (cddddr fla) (cddr fla))))
(concat
"for " (mizar-pp-types (cadr fla))
(if st_occurs (concat "st " (mizar-pp-parsed-fla (fourth fla))) " ")
(if (eq 'holds (car rest))
(concat "holds " (mizar-pp-parsed-fla (cadr rest)))
(mizar-pp-parsed-fla (car rest))))))
(t (error "Unexpected formula: %s" (prin1-to-string fla)))
))))
(defvar mizar-replace-dupl-spaces-skeletons t)
(defun mizar-skelitem-string (item)
"A string representation of the skeleton item ITEM."
(let ((res (replace-regexp-in-string
" *; *$" ";" (mapconcat 'mizar-pp-parsed-fla item " "))))
(if mizar-replace-dupl-spaces-skeletons
(replace-regexp-in-string " +" " " res)
res)))
(defun mizar-skeleton-string (skel)
"Print the proof skeleton for parsed formula FLA into a string.
The skeleton SKEL is a list of of items, each item is a list of either strings
or lists containing parsed formulas, which are later handed over to
`mizar-pp-parsed-fla'."
(concat "\nproof\n"