Move low-level library files from the lisp/gnus directory

The files moved from lisp/gnus are:

auth-source.el -> /
compface.el -> /image
ecomplete.el -> /
flow-fill.el -> /mail
gravatar.el -> /image
gssapi.el -> /net
html2text.el -> /net
ietf-drums.el -> /mail
mail-parse.el -> /mail
mail-prsvr.el -> /mail
mailcap.el -> /net
plstore.el -> /
pop3.el -> /net
qp.el -> /mail
registry.el -> /
rfc1843.el -> /international
rfc2045.el -> /mail
rfc2047.el -> /mail
rfc2231.el -> /mail
rtree.el -> /
sieve-manage.el -> /net
sieve-mode.el -> /net
sieve.el -> /net
starttls.el -> /net
utf7.el -> /international
yenc.el -> /mail

1 files changed, 55 insertions, 0 deletions

diff --git a/lisp/image/compface.el b/lisp/image/compface.el
new file mode 100644
index 00000000000..e2f607b1be3
--- /dev/null
+++ b/lisp/image/compface.el
@@ -0,0 +1,55 @@
+;;; compface.el --- functions for converting X-Face headers
+
+;; Copyright (C) 2002-2016 Free Software Foundation, Inc.
+
+;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
+;; Keywords: news
+
+;; 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 3 of the License, 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.  If not, see <http://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;;; Code:
+
+;;;###
+(defun uncompface (face)
+  "Convert FACE to pbm.
+Requires the external programs `uncompface', and `icontopbm'.  On a
+GNU/Linux system these might be in packages with names like `compface'
+or `faces-xface' and `netpbm' or `libgr-progs', for instance."
+  (with-temp-buffer
+    (set-buffer-multibyte nil)
+    (insert face)
+    (let ((coding-system-for-read 'raw-text)
+          ;; At least "icontopbm" doesn't work with Windows because
+          ;; the line-break code is converted into CRLF by default.
+          (coding-system-for-write 'binary))
+      (and (eq 0 (apply 'call-process-region (point-min) (point-max)
+                        "uncompface"
+                        'delete '(t nil) nil))
+           (progn
+             (goto-char (point-min))
+             (insert "/* Format_version=1, Width=48, Height=48, Depth=1,\
+ Valid_bits_per_item=16 */\n")
+             ;; Emacs doesn't understand un-raw pbm files.
+             (eq 0 (call-process-region (point-min) (point-max)
+                                        "icontopbm"
+                                        'delete '(t nil))))
+           (buffer-string)))))
+
+(provide 'compface)
+
+;;; compface.el ends here