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    1 ;;; compface.el --- functions for converting X-Face headers
    2 
    3 ;; Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
    4 
    5 ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
    6 ;; Keywords: news
    7 
    8 ;; This file is part of GNU Emacs.
    9 
   10 ;; GNU Emacs is free software; you can redistribute it and/or modify
   11 ;; it under the terms of the GNU General Public License as published by
   12 ;; the Free Software Foundation; either version 3, or (at your option)
   13 ;; any later version.
   14 
   15 ;; GNU Emacs is distributed in the hope that it will be useful,
   16 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
   17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   18 ;; GNU General Public License for more details.
   19 
   20 ;; You should have received a copy of the GNU General Public License
   21 ;; along with GNU Emacs; see the file COPYING.  If not, write to the
   22 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
   23 ;; Boston, MA 02110-1301, USA.
   24 
   25 ;;; Commentary:
   26 
   27 ;;; Code:
   28 
   29 ;;;###
   30 (defun uncompface (face)
   31   "Convert FACE to pbm.
   32 Requires the external programs `uncompface', and `icontopbm'.  On a
   33 GNU/Linux system these might be in packages with names like `compface'
   34 or `faces-xface' and `netpbm' or `libgr-progs', for instance."
   35   (with-temp-buffer
   36     (insert face)
   37     (let ((coding-system-for-read 'raw-text)
   38 	  ;; At least "icontopbm" doesn't work with Windows because
   39 	  ;; the line-break code is converted into CRLF by default.
   40 	  (coding-system-for-write 'binary))
   41       (and (eq 0 (apply 'call-process-region (point-min) (point-max)
   42 			"uncompface"
   43 			'delete '(t nil) nil))
   44 	   (progn
   45 	     (goto-char (point-min))
   46 	     (insert "/* Width=48, Height=48 */\n")
   47 	     ;; I just can't get "icontopbm" to work correctly on its
   48 	     ;; own in XEmacs.  And Emacs doesn't understand un-raw pbm
   49 	     ;; files.
   50 	     (if (not (featurep 'xemacs))
   51 		 (eq 0 (call-process-region (point-min) (point-max)
   52 					    "icontopbm"
   53 					    'delete '(t nil)))
   54 	       (shell-command-on-region (point-min) (point-max)
   55 					"icontopbm | pnmnoraw"
   56 					(current-buffer) t)
   57 	       t))
   58 	   (buffer-string)))))
   59 
   60 (provide 'compface)
   61 
   62 ;;; arch-tag: f9c78e84-98c0-4142-9682-8ba4cf4c3441
   63 ;;; compface.el ends here