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- ;*****************************************************************************
- ;
- ; Filename: tek-gnus-hilite.el
- ;
- ; Copyright (C) 1991 Ken Wood
- ;
- ; This program 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 1, or (at your option)
- ; any later version.
- ;
- ; This program 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 this program; if not, write to the Free Software
- ; Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- ;
- ; Author: Ken Wood, <kwood@austek.oz.au>
- ; Organisation: Austek Microsystems Pty Ltd, Australia.
- ; Released with permission from Austek Microsystems.
- ;
- ; Description: Highlight fields in articles displayed by the GNUS
- ; newsreader under epoch.
- ;
- ; Button styles may be customised by means of X11 resources.
- ; The resource names to use are "gnus-from" and
- ; "gnus-subject". See the file tek-style-utils.el for details.
- ;
- ; See the INSTALL file that comes with this package for
- ; installation details.
- ;
- ;*****************************************************************************
-
- ; $Id: tek-gnus-hilite.el,v 1.5 1991/11/21 02:58:32 kwood Exp $
-
- (provide 'tek-gnus-hilite)
- (require 'epoch-running)
-
- (if running-epoch
- (progn
-
- (require 'tek-style-utils)
-
- (defvar tek-gnus-from-foreground "blue3"
- "\
- Foreground color used to highlight From: fields in GNUS if no value is
- defined in the X11 resources and the display device supports color. On
- monochrome screens a different font is used in place of the different
- color.")
-
- (defvar tek-gnus-from-styleorattribute
- ; If the display supports multiple colors and a default color
- ; is specified, define the style to use a different color.
- (if (and (> (number-of-colors) 2) tek-gnus-from-foreground)
- (tek-build-style "gnus-from"
- nil nil
- tek-gnus-from-foreground (background)
- (background) (foreground))
- ; Otherwise, define the style to use a different font.
- (tek-build-style "gnus-from" nil (or tek-italic-bold-fixed-font
- tek-bold-fixed-font
- tek-italic-fixed-font)
- (foreground) (background)
- (background) (foreground)))
- "\
- Style or attribute used to display From: fields in news articles
- displayed by GNUS.")
-
-
- (defvar tek-gnus-subject-foreground "red3"
- "\
- Foreground color used to highlight Subject: fields in GNUS if no value is
- defined in the X11 resources and the display device supports color. On
- monochrome screens a different font is used in place of the different
- color.")
-
- (defvar tek-gnus-subject-underline "red3"
- "\
- Foreground color used to underline Subject: fields in GNUS if no value is
- defined in the X11 resources and the display device supports color. On
- monochrome screens a different font is used in place of the different
- color.")
-
- (defvar tek-gnus-subject-styleorattribute
- ; If the display supports multiple colors and a default color
- ; is specified, define the style to use a different color.
- (if(and (> (number-of-colors) 2)
- (or tek-gnus-subject-underline
- tek-gnus-subject-foreground))
- (tek-build-style "gnus-subject" nil nil
- tek-gnus-subject-foreground (background)
- (background) (foreground)
- tek-gnus-subject-underline)
- (tek-build-style "gnus-subject" nil
- (or tek-bold-fixed-font
- tek-italic-bold-fixed-font
- tek-italic-fixed-font)
- (foreground) (background)
- (background) (foreground)
- (foreground)))
- "\
- Style or attribute used to display Subject: fields in news articles
- displayed by GNUS.")
-
-
- ; Select V3 or V4 button behaviour
- (if tek-highlight-use-attributes
- (progn
- ; Do things the old way - using attributes.
-
- (defvar tek-gnus-from-style tek-gnus-from-styleorattribute
- "\
- Style used for displaying From: fields in news articles displayed
- by GNUS when attributes are used to mark buttons.")
-
- ; Modify the variable used with add-button to be an attribute
- (setq tek-gnus-from-styleorattribute (reserve-attribute))
-
- ;Bind the from-style to the from-attribute
- (set-attribute-style tek-gnus-from-styleorattribute
- tek-gnus-from-style)
-
- (defvar tek-gnus-subject-style tek-gnus-subject-styleorattribute
- "\
- Style used for displaying Subject: fields in news articles displayed
- by GNUS when attributes are used to mark buttons.")
-
- ; Modify the variable used with add-button to be an attribute
- (setq tek-gnus-subject-styleorattribute (reserve-attribute))
-
- ;Bind the subject-style to the subject-attribute
- (set-attribute-style tek-gnus-subject-styleorattribute
- tek-gnus-subject-style)
- ))
-
-
- ; Define the highlighting function
- (defun tek-article-hilite ()
- "\
- Highlight From: and Subject: fields in news articles displayed by
- GNUS."
- (let (
- (starting-buffer (current-buffer))
- )
- (set-buffer gnus-Article-buffer)
- (save-excursion
- (clear-buttons)
- (goto-char (point-min))
- (if (re-search-forward "^From: \\(.*\\)" nil t)
- (add-button (match-beginning 1) (match-end 1)
- tek-gnus-from-styleorattribute))
- (goto-char (point-min))
- (if (re-search-forward "^Subject: \\(.*\\)" nil t)
- (add-button (match-beginning 1) (match-end 1)
- tek-gnus-subject-styleorattribute))
- )
- (set-buffer starting-buffer)))
-
-
- ; Set up the hook to run the highlighting function after displaying
- ; each article. Have to explicitly set the variable to an assumed
- ; value, since the default GNUS setup doesn't initialise it to
- ; a proper list of hook functions.
- (setq gnus-Select-article-hook (list 'gnus-Subject-show-thread
- 'tek-article-hilite))
-
- )) ; end: running-epoch test
-