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;; x-symbol-phox.el
;; Token language "PhoX Symbols" for package x-symbol
;;
;; ID: $Id$
;; Author: C. Raffalli
;; Updates by Markus Wenzel, Christoph Wedler, David Aspinall.
;; Copyright 1998 Technische Universitaet Muenchen
;; License GPL (GNU GENERAL PUBLIC LICENSE)
;;
;; Adapted from x-symbol-isabelle.el
;; NB: Part of Proof General distribution.
;;
;; CW: this sexpr can be deleted with X-Symbol 4.4.3
(eval-when-compile
;; Next lines should allow this file to work standalone
;; without proof-x-symbol.el. See comments further below too.
(require 'cl)
(ignore-errors (require 'x-symbol-vars)))
(defvar x-symbol-phox-required-fonts nil)
;;;===========================================================================
;;; General language accesses, see `x-symbol-language-access-alist'
;;;===========================================================================
;; NB da: these next two are also set in proof-x-symbol.el, but
;; it would be handy to be able to use this file away from PG.
;; FIXME: In future could fix things so just
;; (require 'proof-x-symbol) would be enough here.
(defvar x-symbol-phox-name "PhoX Symbol")
(defvar x-symbol-phox-modeline-name "phox")
(defcustom x-symbol-phox-header-groups-alist nil
"*If non-nil, used in isasym specific grid/menu.
See `x-symbol-header-groups-alist'."
:group 'x-symbol-phox
:group 'x-symbol-input-init
:type 'x-symbol-headers)
(defcustom x-symbol-phox-electric-ignore nil
;; "[:'][A-Za-z]\\|<=\\|\\[\\[\\|\\]\\]\\|~="
"*Additional Phox version of `x-symbol-electric-ignore'."
:group 'x-symbol-phox
:group 'x-symbol-input-control
:type 'x-symbol-function-or-regexp)
(defvar x-symbol-phox-required-fonts nil
"List of features providing fonts for language `phox'.")
(defvar x-symbol-phox-extra-menu-items nil
"Extra menu entries for language `phox'.")
(defvar x-symbol-phox-token-grammar
;; CW: for X-Symbol-4.4.3:
;; '(x-symbol-make-grammar ...)
(if (fboundp 'x-symbol-make-grammar) ;; x-symbol >=4.3 versions
(x-symbol-make-grammar
:encode-spec '(((id . "[_'a-zA-Z0-9]") (op . "[]><=\\/~&+-*%!{}:-]")) .
((id . "[_'a-zA-Z0-9]") (op . "[]><=\\/~&+-*%!{}:-]")))
:decode-spec nil
:decode-regexp "\\([_'a-zA-Z0-9]+\\)\\|\\([]><=\\/~&+-*%!{}:-]+\\)"
:token-list #'x-symbol-phox-default-token-list)))
(defvar x-symbol-phox-input-token-grammar
'("\\([_'a-zA-Z0-9]+\\)\\|\\([]><=\\/~&+-*%!{}:-]+\\)"
((id . "[A-Za-z_0-9]") (op . "[<>!+-*/|&]"))
(id . "[A-Za-z_0-9]") (op . "[<>!+-*/|&]"))
"Grammar of input method Token for language `phox'.")
(defun x-symbol-phox-default-token-list (tokens)
(mapcar
(lambda (x)
(cons x
(cond
;; CW: where are the shapes `id' and `op' used?
((string-match "\\`[A-Za-z_][A-Za-z_0-9]+\\'" x)
'id)
((string-match "\\`[<>!+-*/|&]+\\'" x)
'op))))
tokens))
(defvar x-symbol-phox-user-table nil
"User table defining Phox commands, used in `x-symbol-phox-table'.")
(defvar x-symbol-phox-generated-data nil
"Internal.")
;;;===========================================================================
;;; No image support
;;;===========================================================================
(defvar x-symbol-phox-master-directory 'ignore)
(defvar x-symbol-phox-image-searchpath '("./"))
(defvar x-symbol-phox-image-cached-dirs '("images/" "pictures/"))
(defvar x-symbol-phox-image-file-truename-alist nil)
(defvar x-symbol-phox-image-keywords nil)
;;;===========================================================================
;;; Charsym Info
;;;===========================================================================
(defcustom x-symbol-phox-class-alist
'((VALID "Phox Symbol" (x-symbol-info-face))
(INVALID "no Phox Symbol" (red x-symbol-info-face)))
"Alist for Phox's token classes displayed by info in echo area.
See `x-symbol-language-access-alist' for details."
:group 'x-symbol-texi
:group 'x-symbol-info-strings
:set 'x-symbol-set-cache-variable
:type 'x-symbol-class-info)
(defcustom x-symbol-phox-class-face-alist nil
"Alist for Phox's color scheme in TeXinfo's grid and info.
See `x-symbol-language-access-alist' for details."
:group 'x-symbol-phox
:group 'x-symbol-input-init
:group 'x-symbol-info-general
:set 'x-symbol-set-cache-variable
:type 'x-symbol-class-faces)
(defvar x-symbol-phox-font-lock-keywords x-symbol-nomule-font-lock-keywords)
(defvar x-symbol-phox-font-lock-allowed-faces t)
;;;===========================================================================
;;; The tables
;;;===========================================================================
(defvar x-symbol-phox-case-insensitive nil)
(defvar x-symbol-phox-token-shape nil)
(defvar x-symbol-phox-input-token-ignore nil)
;; FIXME: next one not needed in X-Symbol 4, kept for back compat.
;;(defvar x-symbol-phox-exec-specs
;; '(nil ("\\`\\\\<[A-Za-z][A-Za-z0-9_']*>\\'" .
;; "\\\\<[A-Za-z][A-Za-z0-9_']*>")))
(defvar x-symbol-phox-token-list 'identity)
(defvar x-symbol-phox-xsymb0-table ; symbols
'((greaterequal ">=")
(lessequal "<=")
(notequal "!=")
(element "in")
(notelement "notin")
(propersubset "<<")
(intersection "inter")
(union "union")
(backslash3 "minus")
(universal1 "/\\")
(existential1 "\\/")
(logicalor "or")
(logicaland "&")
(arrowboth "<->")
(arrowright "->")
(arrowdblright "=>")
(notsign "~")
(lambda "\\")
))
(defun x-symbol-phox-prepare-table (table)
"Prepar the table."
(mapcar (lambda (entry)
(list (car entry) nil
(cadr entry)))
table))
(defvar x-symbol-phox-table
(x-symbol-phox-prepare-table
(append x-symbol-phox-user-table x-symbol-phox-xsymb0-table)))
(provide 'x-symbol-phox)
;;;===========================================================================
;;; Internal
;;;===========================================================================
;; CW: all are not needed in X-Symbol >= v4.3
(defvar x-symbol-phox-menu-alist nil
"Internal. Alist used for Isasym specific menu.")
(defvar x-symbol-phox-grid-alist nil
"Internal. Alist used for Isasym specific grid.")
(defvar x-symbol-phox-decode-atree nil
"Internal. Atree used by `x-symbol-token-input'.")
(defvar x-symbol-phox-decode-alist nil
"Internal. Alist used for decoding of Isasym macros.")
(defvar x-symbol-phox-encode-alist nil
"Internal. Alist used for encoding to Isasym macros.")
;; FIXME: next two not needed for newer X-Symbol versions.
(defvar x-symbol-phox-nomule-decode-exec nil
"Internal. File name of Isasym decode executable.")
(defvar x-symbol-phox-nomule-encode-exec nil
"Internal. File name of Isasym encode executable.")
(provide 'x-symbol-phox)
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