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;;; lispm-fonts.el --- quick hack to parse LISPM-style font-shift codes
;; Keywords: faces
;; Copyright (C) 1992-1993 Free Software Foundation, Inc.
;; This file is part of XEmacs.
;; XEmacs 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.
;; XEmacs is distributed in the hope that it will be useful, but
;; WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
;; General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with XEmacs; see the file COPYING. If not, write to the
;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.
;;; Synched up with: Not in FSF.
;; This only copes with MIT/LMI/TI style font shifts, not Symbolics.
;; It doesn't do diagram lines (ha ha). It doesn't do output. That
;; has to wait until it is possible to attach faces to characters
;; instead of just intervals, since this code is really talking about
;; attributes of the text instead of attributes of regions of the
;; buffer. We could do it by mapping over the extents and hacking
;; the overlaps by hand, but that would be hard.
(make-face 'variable)
(or (face-differs-from-default-p 'variable)
(set-face-font 'variable
"-*-helvetica-medium-r-*-*-*-120-*-*-*-*-*-*"))
(make-face 'variable-bold)
(or (face-differs-from-default-p 'variable-bold)
(progn
;; This is no good because helvetica-12-bold is a LOT larger than
;; helvetica-12-medium. Someone really blew it there.
;; (copy-face 'variable 'variable-bold)
;; (make-face-bold 'variable-bold)
(set-face-font 'variable-bold
"-*-helvetica-bold-r-*-*-*-100-*-*-*-*-*-*")))
(make-face 'variable-italic)
(or (face-differs-from-default-p 'variable-italic)
(progn
(copy-face 'variable-bold 'variable-italic) ; see above
(make-face-unbold 'variable-italic)
(make-face-italic 'variable-italic)))
(make-face 'variable-bold-italic)
(or (face-differs-from-default-p 'variable-bold-italic)
(progn
(copy-face 'variable-bold 'variable-bold-italic)
(make-face-italic 'variable-bold-italic)))
(defconst lispm-font-to-face
'(("tvfont" . default)
("cptfont" . default)
("cptfontb" . bold)
("cptfonti" . italic)
("cptfontbi" . bold-italic)
("base-font" . default)
("bigfnt" . bold)
("cmb8" . variable-bold)
("higher-medfnb" . bold)
("higher-tr8" . default)
("medfnb" . bold)
("medfnt" . normal)
("medfntb" . bold)
("wider-font" . bold)
("wider-medfnt" . bold)
("mets" . variable-large)
("metsb" . variable-large-bold)
("metsbi" . variable-large-bold-italic)
("metsi" . variable-large-italic)
("cmr5" . variable)
("cmr10" . variable)
("cmr18" . variable)
("cmold" . variable)
("cmdunh" . variable)
("hl10" . variable)
("hl10b" . variable-bold)
("hl12" . variable)
("hl12b" . variable-bold)
("hl12bi" . variable-bold-italic)
("hl12i" . variable-italic)
("hl6" . variable)
("hl7" . variable)
("tr10" . variable)
("tr10b" . variable-bold)
("tr10bi" . variable-bold-italic)
("tr10i" . variable-italic)
("tr12" . variable)
("tr12b" . variable-bold)
("tr12bi" . variable-bold-italic)
("tr12i" . variable-italic)
("tr18" . variable-large)
("tr18b" . variable-large-bold)
("tr8" . variable)
("tr8b" . variable-bold)
("tr8i" . variable-italic)
("5x5" . small)
("tiny" . small)
("43vxms" . variable-large)
("courier" . bold)
("adobe-courier10" . default)
("adobe-courier14" . bold)
("adobe-courier10b" . bold)
("adobe-courier14b" . bold)
("adobe-hl12" . variable)
("adobe-hl14" . variable)
("adobe-hl14b" . variable-bold)
)
"Alist of LISPM font names to Emacs face names.")
(defun lispm-font-to-face (lispm-font)
(if (symbolp lispm-font)
(setq lispm-font (symbol-name lispm-font)))
(let ((case-fold-search t)
face)
(setq lispm-font (downcase lispm-font))
(if (string-match "^fonts:+" lispm-font)
(setq lispm-font (substring lispm-font (match-end 0))))
(if (setq face (cdr (assoc lispm-font lispm-font-to-face)))
(if (find-face face)
face
(message "warning: unknown face %s" face)
'default)
(message "warning: unknown Lispm font %s" (upcase lispm-font))
'default)))
(defvar fonts) ; the -*- line of the file will set this.
(defun lispm-fontify-hack-local-variables ()
;; Sometimes code has font-shifts in the -*- line, which means that the
;; local variables will have been read incorrectly by the emacs-lisp reader.
;; In particular, the `fonts' variable might be corrupted. So if there
;; are font-shifts in the prop line, re-parse it.
(if (or (not (boundp 'fonts))
(null 'fonts)
(let ((case-fold-search t))
(and (looking-at "[ \t]*;.*-\\*-.*fonts[ \t]*:.*-\\*-")
(looking-at ".*\^F"))))
(save-excursion
(save-restriction
(end-of-line)
(narrow-to-region (point-min) (point))
(goto-char (point-min))
(while (re-search-forward "\^F[0-9a-zA-Z*]" nil t)
(delete-region (match-beginning 0) (match-end 0)))
(let ((enable-local-variables 'query))
(hack-local-variables))))))
(defun lispm-fontify-buffer ()
(save-excursion
(goto-char (point-min))
(if (fboundp 'font-lock-mode) (font-lock-mode 0))
(lispm-fontify-hack-local-variables)
(let ((font-stack nil)
(p (point))
c)
(while (search-forward "\^F" nil t)
(delete-char -1)
(setq c (following-char))
(delete-char 1)
(cond ((= c ?\^F)
(insert "\^F"))
((= c ?*)
(if (and font-stack (/= p (point)))
(set-extent-face (make-extent p (point)) (car font-stack)))
(setq p (point))
(setq font-stack (cdr font-stack)))
((or (< c ?0) (> c ?Z)) ; error...
nil)
((>= (setq c (- c ?0)) (length fonts)) ; error...
nil)
(t
(if (and font-stack (/= p (point)))
(set-extent-face (make-extent p (point)) (car font-stack)))
(setq font-stack (cons (lispm-font-to-face (nth c fonts))
font-stack))
(setq p (point)))))
(if (and font-stack (/= p (point)))
(set-extent-face (make-extent p (point)) (car font-stack))))))
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