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- ;;; w3-mule.el,v --- MULE 18/19 specific functions for emacs-w3
- ;; Author: wmperry
- ;; Created: 1995/07/01 17:14:23
- ;; Version: 1.13
- ;; Keywords: faces, help, i18n, mouse, hypermedia
-
- ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
- ;;; Copyright (c) 1993, 1994, 1995 by William M. Perry (wmperry@spry.com)
- ;;;
- ;;; This file is part of GNU Emacs.
- ;;;
- ;;; GNU Emacs 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.
- ;;;
- ;;; GNU Emacs 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 GNU Emacs; see the file COPYING. If not, write to
- ;;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
- ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-
- ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
- ;;; Printing a mule buffer as postscript. Requires m2ps
- ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
- (defun w3-m2ps-buffer (&optional buffer)
- "Print a buffer by passing it through m2ps and lpr."
- (or buffer (setq buffer (current-buffer)))
- (let ((x (save-excursion (set-buffer buffer) tab-width)))
- (save-excursion
- (set-buffer (get-buffer-create " *mule-print*"))
- (erase-buffer)
- (insert-buffer buffer)
- (if (/= x tab-width)
- (progn
- (setq tab-width x)
- (message "Converting tabs")
- (untabify (point-min) (point-max))))
- (setq file-coding-system *internal*)
- (shell-command-on-region (point-min) (point-max)
- "m2ps | lpr" t))))
-
- ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
- ;;; Multi-Lingual Emacs (MULE) Specific Functions
- ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
- (if w3-running-FSF19
- (progn
- (fset 'w3-create-faces-origunal (symbol-function 'w3-create-faces))
- (defun w3-create-faces ()
- "Create faces, the no-so-dumb MULE 2.x way"
- (w3-create-faces-origunal)
- (setq w3-delimit-emphasis nil)
- (setq w3-delimit-links nil)))
- (defun w3-create-faces ()
- "Create faces, the no-quite-so-dumb MULE 1.x way"
- (setq w3-delimit-links nil))
- )
-
- (defvar attributed-region nil
- "Bogus definition to get rid of compile-time warnings.")
-
- (defvar w3-mule-marker-attribute-alist
- '(("SUBMIT" . 'reverse)
- ("RESET" . 'reverse)
- ("PASSWORD" . 'underline)
- ("OPTION" . 'underline)
- ("" . 'underline))
- "Pairs of anchors' TYPEs and their display ATTRIBUTEs. For emacs18.")
-
- (defun w3-mule-overlay-attribute (ovl)
- "Return a type of attribute for OVL. If OVL is not for
- links/forms/images/headers, nil is returned. For emacs19."
- (let (ovp)
- (cond ((and (setq ovp (overlay-get ovl 'w3))
- (nth 1 ovp)) ;; has a HREF
- 'underline)
- ((overlay-get ovl 'w3form) 'underline)
- ((overlay-get ovl 'w3header) 'bold)
- (t nil)
- )))
-
- (defun w3-mule-attribute-on-region (attr start end)
- "Turn on ATTR for the characters within the region, but white spaces."
- (save-excursion
- (let ((buffer-read-only nil))
- (goto-char start)
- (skip-chars-forward " \t")
- (setq start (point))
- (end-of-line)
- (while (< (point) end)
- (attribute-on-region attr start (point))
- (forward-line 1)
- (skip-chars-forward " \t")
- (setq start (point))
- (if (= (point) end) t (end-of-line)) )
- (attribute-on-region attr start end))))
-
- (defun w3-mule-attribute-zones-19 (&optional zones)
- "Trace overlays in the current buffer and turn on an appropriate
- attribute, if necessary. For Mule based on emacs19."
- (let ((pos (point-min)) (pmax (point-max)) l)
- (while (< pos pmax)
- (if (setq l (overlays-at pos))
- (let ((c 0) ovl at)
- (while (setq ovl (nth c l))
- (if (setq at (w3-mule-overlay-attribute ovl))
- (w3-mule-attribute-on-region
- at (overlay-start ovl) (overlay-end ovl)))
- (setq c (1+ c)))))
- (setq pos (next-overlay-change pos)))))
-
- (defun w3-mule-attribute-zones-18 (zones)
- "Turn on an appropriate attribute for each marker in ZONES.
- For Mule based on emacs18."
- (save-excursion
- (let ((c 0) l z type at beg end)
- (while (setq z (nth c zones))
- (setq type (nth 2 (nth 2 z)))
- (if (null type) t
- (setq at (or (cdr (assoc type w3-mule-marker-attribute-alist))
- w3-mule-attribute))
- (w3-mule-attribute-on-region at (nth 0 z) (nth 1 z)))
- (setq c (1+ c))))))
-
- (fset 'w3-mule-attribute-zones
- (if w3-running-FSF19
- 'w3-mule-attribute-zones-19
- 'w3-mule-attribute-zones-18))
-
- (defun w3-inhibit-code-conversion (proc buf)
- "Inhibit Mule's subprocess PROC from code converting in BUF."
- (save-excursion
- (set-buffer buf)
- (setq mc-flag nil))
- (set-process-coding-system proc *noconv* *noconv*))
-
- (defconst w3-mime-list-for-code-conversion
- '("text/plain" "text/html")
- "List of MIME types that require Mules' code conversion.")
-
- (defun w3-convert-code-for-mule (mmtype)
- "Convert current data into the appropriate coding system"
- (and (or (not mmtype) (member mmtype w3-mime-list-for-code-conversion))
- (let* ((c (code-detect-region (point-min) (point-max)))
- (code (or (and (listp c) (car c)) c)))
- (setq mc-flag t)
- (code-convert-region (point-min) (point-max) code *internal*)
- (set-file-coding-system code))))
-
- (or (fboundp 'attribute-on-region)
- (defun attribute-on-region (attr from to)
- (let ((face (cond ((eq attr 'inverse) 'region)
- (t attr))))
- (add-text-properties from to (list 'face face)))))
-
- (provide 'w3-mule)
-