From: keiichi <keiichi>
Date: Thu, 23 Dec 1999 10:16:52 +0000 (+0000)
Subject: Rename to mm-mailcap.el
X-Git-Tag: nana-gnus-7_1_0_16~95
X-Git-Url: http://git.chise.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8a4ac2b66717a22dd59efea510cd4338e6caa756;p=elisp%2Fgnus.git-

Rename to mm-mailcap.el
---

diff --git a/lisp/mailcap.el b/lisp/mailcap.el
deleted file mode 100644
index 901e9e5..0000000
--- a/lisp/mailcap.el
+++ /dev/null
@@ -1,895 +0,0 @@
-;;; mailcap.el --- Functions for displaying MIME parts
-;; Copyright (C) 1998,99 Free Software Foundation, Inc.
-
-;; Author: William M. Perry <wmperry@aventail.com>
-;;	Lars Magne Ingebrigtsen <larsi@gnus.org>
-;; Keywords: news, mail
-
-;; 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, Inc., 59 Temple Place - Suite 330,
-;; Boston, MA 02111-1307, USA.
-
-;;; Commentary:
-
-;;; Code:
-
-(eval-and-compile
-  (require 'cl))
-(require 'mail-parse)
-
-(defvar mailcap-parse-args-syntax-table
-  (let ((table (copy-syntax-table emacs-lisp-mode-syntax-table)))
-    (modify-syntax-entry ?' "\"" table)
-    (modify-syntax-entry ?` "\"" table)
-    (modify-syntax-entry ?{ "(" table)
-    (modify-syntax-entry ?} ")" table)
-    table)
-  "A syntax table for parsing sgml attributes.")
-
-(defvar mailcap-mime-data
-  '(("application"
-     ("x-x509-ca-cert"
-      (viewer . ssl-view-site-cert)
-      (test . (fboundp 'ssl-view-site-cert))
-      (type . "application/x-x509-ca-cert"))
-     ("x-x509-user-cert"
-      (viewer . ssl-view-user-cert)
-      (test . (fboundp 'ssl-view-user-cert))
-      (type . "application/x-x509-user-cert"))
-     ("octet-stream"
-      (viewer . mailcap-save-binary-file)
-      (non-viewer . t)
-      (type ."application/octet-stream"))
-     ("dvi"
-      (viewer . "open %s")
-      (type   . "application/dvi")
-      (test   . (eq (mm-device-type) 'ns)))
-     ("dvi"
-      (viewer . "xdvi %s")
-      (test   . (eq (mm-device-type) 'x))
-      ("needsx11")
-      (type   . "application/dvi"))
-     ("dvi"
-      (viewer . "dvitty %s")
-      (test   . (not (getenv "DISPLAY")))
-      (type   . "application/dvi"))
-     ("emacs-lisp"
-      (viewer . mailcap-maybe-eval)
-      (type   . "application/emacs-lisp"))
-     ("x-tar"
-      (viewer . mailcap-save-binary-file)
-      (non-viewer . t)
-      (type   . "application/x-tar"))
-     ("x-latex"
-      (viewer . tex-mode)
-      (test   . (fboundp 'tex-mode))
-      (type   . "application/x-latex"))
-     ("x-tex"
-      (viewer . tex-mode)
-      (test   . (fboundp 'tex-mode))
-      (type   . "application/x-tex"))
-     ("latex"
-      (viewer . tex-mode)
-      (test   . (fboundp 'tex-mode))
-      (type   . "application/latex"))
-     ("tex"
-      (viewer . tex-mode)
-      (test   . (fboundp 'tex-mode))
-      (type   . "application/tex"))
-     ("texinfo"
-      (viewer . texinfo-mode)
-      (test   . (fboundp 'texinfo-mode))
-      (type   . "application/tex"))
-     ("zip"
-      (viewer . mailcap-save-binary-file)
-      (non-viewer . t)
-      (type   . "application/zip")
-      ("copiousoutput"))
-     ("pdf"
-      (viewer . "acroread %s")
-      (type   . "application/pdf"))
-     ("postscript"
-      (viewer . "open %s")
-      (type   . "application/postscript")
-      (test   . (eq (mm-device-type) 'ns)))
-     ("postscript"
-      (viewer . "ghostview -dSAFER %s")
-      (type . "application/postscript")
-      (test   . (eq (mm-device-type) 'x))
-      ("needsx11"))
-     ("postscript"
-      (viewer . "ps2ascii %s")
-      (type . "application/postscript")
-      (test . (not (getenv "DISPLAY")))
-      ("copiousoutput")))
-    ("audio"
-     ("x-mpeg"
-      (viewer . "maplay %s")
-      (type   . "audio/x-mpeg"))
-     (".*"
-      (viewer . mailcap-save-binary-file)
-      (non-viewer . t)
-      (test   . (or (featurep 'nas-sound)
-		      (featurep 'native-sound)))
-      (type   . "audio/*"))
-     (".*"
-      (viewer . "showaudio")
-      (type   . "audio/*")))
-    ("message"
-     ("rfc-*822"
-      (viewer . mm-view-message)
-      (test   . (and (featurep 'gnus)
-		     (gnus-alive-p)))
-      (type   . "message/rfc822"))
-     ("rfc-*822"
-      (viewer . vm-mode)
-      (test   . (fboundp 'vm-mode))
-      (type   . "message/rfc822"))
-     ("rfc-*822"
-      (viewer . w3-mode)
-      (test   . (fboundp 'w3-mode))
-      (type   . "message/rfc822"))
-     ("rfc-*822"
-      (viewer . view-mode)
-      (test   . (fboundp 'view-mode))
-      (type   . "message/rfc822"))
-     ("rfc-*822"
-      (viewer . fundamental-mode)
-      (type   . "message/rfc822")))
-    ("image"
-     ("x-xwd"
-      (viewer  . "xwud -in %s")
-      (type    . "image/x-xwd")
-      ("compose" . "xwd -frame > %s")
-      (test    . (eq (mm-device-type) 'x))
-      ("needsx11"))
-     ("x11-dump"
-      (viewer . "xwud -in %s")
-      (type . "image/x-xwd")
-      ("compose" . "xwd -frame > %s")
-      (test   . (eq (mm-device-type) 'x))
-      ("needsx11"))
-     ("windowdump"
-      (viewer . "xwud -in %s")
-      (type . "image/x-xwd")
-      ("compose" . "xwd -frame > %s")
-      (test   . (eq (mm-device-type) 'x))
-      ("needsx11"))
-     (".*"
-      (viewer . "aopen %s")
-      (type   . "image/*")
-      (test   . (eq (mm-device-type) 'ns)))
-     (".*"
-      (viewer . "display %s")
-      (type . "image/*")
-      (test   . (eq (mm-device-type) 'x))
-      ("needsx11"))
-     (".*"
-      (viewer . "ee %s")
-      (type . "image/*")
-      (test   . (eq (mm-device-type) 'x))
-      ("needsx11")))
-    ("text"
-     ("plain"
-      (viewer  . w3-mode)
-      (test    . (fboundp 'w3-mode))
-      (type    . "text/plain"))
-     ("plain"
-      (viewer  . view-mode)
-      (test    . (fboundp 'view-mode))
-      (type    . "text/plain"))
-     ("plain"
-      (viewer  . fundamental-mode)
-      (type    . "text/plain"))
-     ("enriched"
-      (viewer . enriched-decode-region)
-      (test   . (fboundp 'enriched-decode))
-      (type   . "text/enriched"))
-     ("html"
-      (viewer . mm-w3-prepare-buffer)
-      (test   . (fboundp 'w3-prepare-buffer))
-      (type   . "text/html")))
-    ("video"
-     ("mpeg"
-      (viewer . "mpeg_play %s")
-      (type   . "video/mpeg")
-      (test   . (eq (mm-device-type) 'x))
-      ("needsx11")))
-    ("x-world"
-     ("x-vrml"
-      (viewer  . "webspace -remote %s -URL %u")
-      (type    . "x-world/x-vrml")
-      ("description"
-       "VRML document")))
-    ("archive"
-     ("tar"
-      (viewer . tar-mode)
-      (type . "archive/tar")
-      (test . (fboundp 'tar-mode)))))
-     "The mailcap structure is an assoc list of assoc lists.
-1st assoc list is keyed on the major content-type
-2nd assoc list is keyed on the minor content-type (which can be a regexp)
-
-Which looks like:
------------------
- ((\"application\"
-   (\"postscript\" . <info>))
-  (\"text\"
-   (\"plain\" . <info>)))
-
-Where <info> is another assoc list of the various information
-related to the mailcap RFC.  This is keyed on the lowercase
-attribute name (viewer, test, etc).  This looks like:
- ((viewer . viewerinfo)
-  (test   . testinfo)
-  (xxxx   . \"string\"))
-
-Where viewerinfo specifies how the content-type is viewed.  Can be
-a string, in which case it is run through a shell, with
-appropriate parameters, or a symbol, in which case the symbol is
-funcall'd, with the buffer as an argument.
-
-testinfo is a list of strings, or nil.  If nil, it means the
-viewer specified is always valid.  If it is a list of strings,
-these are used to determine whether a viewer passes the 'test' or
-not.")
-
-(defvar mailcap-download-directory nil
-  "*Where downloaded files should go by default.")
-
-(defvar mailcap-temporary-directory
-  (cond ((fboundp 'temp-directory) (temp-directory))
-	((boundp 'temporary-file-directory) temporary-file-directory)
-	("/tmp/"))
-  "*Where temporary files go.")
-
-;;;
-;;; Utility functions
-;;;
-
-(defun mailcap-generate-unique-filename (&optional fmt)
-  "Generate a unique filename in mailcap-temporary-directory"
-  (if (not fmt)
-      (let ((base (format "mailcap-tmp.%d" (user-real-uid)))
-	    (fname "")
-	    (x 0))
-	(setq fname (format "%s%d" base x))
-	(while (file-exists-p
-		(expand-file-name fname mailcap-temporary-directory))
-	  (setq x (1+ x)
-		fname (concat base (int-to-string x))))
-	(expand-file-name fname mailcap-temporary-directory))
-    (let ((base (concat "mm" (int-to-string (user-real-uid))))
-	  (fname "")
-	  (x 0))
-      (setq fname (format fmt (concat base (int-to-string x))))
-      (while (file-exists-p
-	      (expand-file-name fname mailcap-temporary-directory))
-	(setq x (1+ x)
-	      fname (format fmt (concat base (int-to-string x)))))
-      (expand-file-name fname mailcap-temporary-directory))))
-
-(defun mailcap-save-binary-file ()
-  (goto-char (point-min))
-  (unwind-protect
-      (let ((file (read-file-name
-		   "Filename to save as: "
-		   (or mailcap-download-directory "~/")))
-	    (require-final-newline nil))
-	(write-region (point-min) (point-max) file))
-    (kill-buffer (current-buffer))))
-
-(defun mailcap-maybe-eval ()
-  "Maybe evaluate a buffer of emacs lisp code"
-  (if (yes-or-no-p "This is emacs-lisp code, evaluate it? ")
-      (eval-buffer (current-buffer))
-    (emacs-lisp-mode)))
-
-;;;
-;;; The mailcap parser
-;;;
-
-(defun mailcap-replace-regexp (regexp to-string)
-  ;; Quiet replace-regexp.
-  (goto-char (point-min))
-  (while (re-search-forward regexp nil t)
-    (replace-match to-string t nil)))
-
-(defvar mailcap-parsed-p nil)
-
-(defun mailcap-parse-mailcaps (&optional path force)
-  "Parse out all the mailcaps specified in a unix-style path string PATH.
-If FORCE, re-parse even if already parsed."
-  (interactive (list nil t))
-  (when (or (not mailcap-parsed-p)
-	    force)
-    (cond
-     (path nil)
-     ((getenv "MAILCAPS") (setq path (getenv "MAILCAPS")))
-     ((memq system-type '(ms-dos ms-windows windows-nt))
-      (setq path (mapconcat 'expand-file-name
-			    '("~/mail.cap" "~/etc/mail.cap" "~/.mailcap")
-			    ";")))
-     (t (setq path (mapconcat 'expand-file-name
-			      '("~/.mailcap"
-				"/etc/mailcap:/usr/etc/mailcap"
-				"/usr/local/etc/mailcap") ":"))))
-    (let ((fnames (reverse
-		   (split-string
-		    path (if (memq system-type
-				   '(ms-dos ms-windows windows-nt))
-			     ";"
-			   ":"))))
-	  fname)
-      (while fnames
-	(setq fname (car fnames))
-       (if (and (file-exists-p fname) (file-readable-p fname)
-                (file-regular-p fname))
-	    (mailcap-parse-mailcap (car fnames)))
-	(setq fnames (cdr fnames))))
-    (setq mailcap-parsed-p t)))
-
-(defun mailcap-parse-mailcap (fname)
-  ;; Parse out the mailcap file specified by FNAME
-  (let (major				; The major mime type (image/audio/etc)
-	minor				; The minor mime type (gif, basic, etc)
-	save-pos			; Misc saved positions used in parsing
-	viewer				; How to view this mime type
-	info				; Misc info about this mime type
-	)
-    (with-temp-buffer
-      (insert-file-contents fname)
-      (set-syntax-table mailcap-parse-args-syntax-table)
-      (mailcap-replace-regexp "#.*" "")	; Remove all comments
-      (mailcap-replace-regexp "\n+" "\n") ; And blank lines
-      (mailcap-replace-regexp "\\\\[ \t\n]+" " ") ; And collapse spaces
-      (mailcap-replace-regexp (concat (regexp-quote "\\") "[ \t]*\n") "")
-      (goto-char (point-max))
-      (skip-chars-backward " \t\n")
-      (delete-region (point) (point-max))
-      (goto-char (point-min))
-      (while (not (eobp))
-	(skip-chars-forward " \t\n")
-	(setq save-pos (point)
-	      info nil)
-	(skip-chars-forward "^/; \t\n")
-	(downcase-region save-pos (point))
-	(setq major (buffer-substring save-pos (point)))
-	(skip-chars-forward " \t\n")
-	(setq minor "")
-	(when (eq (char-after) ?/)
-	  (forward-char)
-	  (skip-chars-forward " \t\n")
-	  (setq save-pos (point))
-	  (skip-chars-forward "^; \t\n")
-	  (downcase-region save-pos (point))
-	  (setq minor
-		(cond
-		 ((eq ?* (or (char-after save-pos) 0)) ".*")
-		 ((= (point) save-pos) ".*")
-		 (t (regexp-quote (buffer-substring save-pos (point)))))))
-	(skip-chars-forward " \t\n")
-	;;; Got the major/minor chunks, now for the viewers/etc
-	;;; The first item _must_ be a viewer, according to the
-	;;; RFC for mailcap files (#1343)
-	(setq viewer "")
-	(when (eq (char-after) ?\;) 
-	  (forward-char)
-	  (skip-chars-forward " \t\n")
-	  (setq save-pos (point))
-	  (skip-chars-forward "^;\n")
-	  ;; skip \;
-	  (while (eq (char-before) ?\\)
-	    (backward-delete-char 1)
-	    (forward-char)
-	    (skip-chars-forward "^;\n"))
-	  (if (eq (or (char-after save-pos) 0) ?')
-	      (setq viewer (progn
-			     (narrow-to-region (1+ save-pos) (point))
-			     (goto-char (point-min))
-			     (prog1
-				 (read (current-buffer))
-			       (goto-char (point-max))
-			       (widen))))
-	    (setq viewer (buffer-substring save-pos (point)))))
-	(setq save-pos (point))
-	(end-of-line)
-	(unless (equal viewer "") 
-	  (setq info (nconc (list (cons 'viewer viewer)
-				  (cons 'type (concat major "/"
-						      (if (string= minor ".*")
-							  "*" minor))))
-			    (mailcap-parse-mailcap-extras save-pos (point))))
-	  (mailcap-mailcap-entry-passes-test info)
-	  (mailcap-add-mailcap-entry major minor info))))))
-
-(defun mailcap-parse-mailcap-extras (st nd)
-  ;; Grab all the extra stuff from a mailcap entry
-  (let (
-	name				; From name=
-	value				; its value
-	results				; Assoc list of results
-	name-pos			; Start of XXXX= position
-	val-pos				; Start of value position
-	done				; Found end of \'d ;s?
-	)
-    (save-restriction
-      (narrow-to-region st nd)
-      (goto-char (point-min))
-      (skip-chars-forward " \n\t;")
-      (while (not (eobp))
-	(setq done nil)
-	(setq name-pos (point))
-	(skip-chars-forward "^ \n\t=;")
-	(downcase-region name-pos (point))
-	(setq name (buffer-substring name-pos (point)))
-	(skip-chars-forward " \t\n")
-	(if (not (eq (char-after (point)) ?=)) ; There is no value
-	    (setq value t)
-	  (skip-chars-forward " \t\n=")
-	  (setq val-pos (point))
-	  (if (memq (char-after val-pos) '(?\" ?'))
-	      (progn
-		(setq val-pos (1+ val-pos))
-		(condition-case nil
-		    (progn
-		      (forward-sexp 1)
-		      (backward-char 1))
-		  (error (goto-char (point-max)))))
-	    (while (not done)
-	      (skip-chars-forward "^;")
-	      (if (eq (char-after (1- (point))) ?\\ )
-		  (progn
-		    (subst-char-in-region (1- (point)) (point) ?\\ ? )
-		    (skip-chars-forward ";"))
-		(setq done t))))
-	  (setq	value (buffer-substring val-pos (point))))
-	(setq results (cons (cons name value) results))
-	(skip-chars-forward " \";\n\t"))
-      results)))
-
-(defun mailcap-mailcap-entry-passes-test (info)
-  ;; Return t iff a mailcap entry passes its test clause or no test
-  ;; clause is present.
-  (let (status				; Call-process-regions return value
-	(test (assq 'test info))	; The test clause
-	)
-    (setq status (and test (split-string (cdr test) " ")))
-    (if (and (or (assoc "needsterm" info)
-		 (assoc "needsterminal" info)
-		 (assoc "needsx11" info))
-	     (not (getenv "DISPLAY")))
-	(setq status nil)
-      (cond
-       ((and (equal (nth 0 status) "test")
-	     (equal (nth 1 status) "-n")
-	     (or (equal (nth 2 status) "$DISPLAY")
-		 (equal (nth 2 status) "\"$DISPLAY\"")))
-	(setq status (if (getenv "DISPLAY") t nil)))
-       ((and (equal (nth 0 status) "test")
-	     (equal (nth 1 status) "-z")
-	     (or (equal (nth 2 status) "$DISPLAY")
-		 (equal (nth 2 status) "\"$DISPLAY\"")))
-	(setq status (if (getenv "DISPLAY") nil t)))
-       (test nil)
-       (t nil)))
-    (and test (listp test) (setcdr test status))))
-
-;;;
-;;; The action routines.
-;;;
-
-(defun mailcap-possible-viewers (major minor)
-  ;; Return a list of possible viewers from MAJOR for minor type MINOR
-  (let ((exact '())
-	(wildcard '()))
-    (while major
-      (cond
-       ((equal (car (car major)) minor)
-	(setq exact (cons (cdr (car major)) exact)))
-       ((and minor (string-match (car (car major)) minor))
-	(setq wildcard (cons (cdr (car major)) wildcard))))
-      (setq major (cdr major)))
-    (nconc (nreverse exact) (nreverse wildcard))))
-
-(defun mailcap-unescape-mime-test (test type-info)
-  (let (save-pos save-chr subst)
-    (cond
-     ((symbolp test) test)
-     ((and (listp test) (symbolp (car test))) test)
-     ((or (stringp test)
-	  (and (listp test) (stringp (car test))
-	       (setq test (mapconcat 'identity test " "))))
-      (with-temp-buffer
-	(insert test)
-	(goto-char (point-min))
-	(while (not (eobp))
-	  (skip-chars-forward "^%")
-	  (if (/= (- (point)
-		     (progn (skip-chars-backward "\\\\")
-			    (point)))
-		  0)			; It is an escaped %
-	      (progn
-		(delete-char 1)
-		(skip-chars-forward "%."))
-	    (setq save-pos (point))
-	    (skip-chars-forward "%")
-	    (setq save-chr (char-after (point)))
-	    (cond
-	     ((null save-chr) nil)
-	     ((= save-chr ?t)
-	      (delete-region save-pos (progn (forward-char 1) (point)))
-	      (insert (or (cdr (assq 'type type-info)) "\"\"")))
-	     ((= save-chr ?M)
-	      (delete-region save-pos (progn (forward-char 1) (point)))
-	      (insert "\"\""))
-	     ((= save-chr ?n)
-	      (delete-region save-pos (progn (forward-char 1) (point)))
-	      (insert "\"\""))
-	     ((= save-chr ?F)
-	      (delete-region save-pos (progn (forward-char 1) (point)))
-	      (insert "\"\""))
-	     ((= save-chr ?{)
-	      (forward-char 1)
-	      (skip-chars-forward "^}")
-	      (downcase-region (+ 2 save-pos) (point))
-	      (setq subst (buffer-substring (+ 2 save-pos) (point)))
-	      (delete-region save-pos (1+ (point)))
-	      (insert (or (cdr (assoc subst type-info)) "\"\"")))
-	     (t nil))))
-	(buffer-string)))
-     (t (error "Bad value to mailcap-unescape-mime-test. %s" test)))))
-
-(defvar mailcap-viewer-test-cache nil)
-
-(defun mailcap-viewer-passes-test (viewer-info type-info)
-  ;; Return non-nil iff the viewer specified by VIEWER-INFO passes its
-  ;; test clause (if any).
-  (let* ((test-info (assq 'test viewer-info))
-	 (test (cdr test-info))
-	 (otest test)
-	 (viewer (cdr (assoc 'viewer viewer-info)))
-	 (default-directory (expand-file-name "~/"))
-	 status parsed-test cache result)
-    (if (setq cache (assoc test mailcap-viewer-test-cache))
-	(cadr cache)
-      (setq
-       result
-       (cond
-	((not test-info) t)		; No test clause
-	((not test) nil)		; Already failed test
-	((eq test t) t)			; Already passed test
-	((and (symbolp test)		; Lisp function as test
-	      (fboundp test))
-	 (funcall test type-info))
-	((and (symbolp test)		; Lisp variable as test
-	      (boundp test))
-	 (symbol-value test))
-	((and (listp test)		; List to be eval'd
-	      (symbolp (car test)))
-	 (eval test))
-	(t
-	 (setq test (mailcap-unescape-mime-test test type-info)
-	       test (list shell-file-name nil nil nil
-			  shell-command-switch test)
-	       status (apply 'call-process test))
-	 (= 0 status))))
-      (push (list otest result) mailcap-viewer-test-cache)
-      result)))
-
-(defun mailcap-add-mailcap-entry (major minor info)
-  (let ((old-major (assoc major mailcap-mime-data)))
-    (if (null old-major)		; New major area
-	(setq mailcap-mime-data
-	      (cons (cons major (list (cons minor info)))
-		    mailcap-mime-data))
-      (let ((cur-minor (assoc minor old-major)))
-	(cond
-	 ((or (null cur-minor)		; New minor area, or
-	      (assq 'test info))	; Has a test, insert at beginning
-	  (setcdr old-major (cons (cons minor info) (cdr old-major))))
-	 ((and (not (assq 'test info)) ; No test info, replace completely
-	       (not (assq 'test cur-minor)))
-	  (setcdr cur-minor info))
-	 (t
-	  (setcdr old-major (cons (cons minor info) (cdr old-major)))))))))
-
-(defun mailcap-add (type viewer &optional test)
-  "Add VIEWER as a handler for TYPE.
-If TEST is not given, it defaults to t."
-  (let ((tl (split-string type "/")))
-    (when (or (not (car tl))
-	      (not (cadr tl)))
-      (error "%s is not a valid MIME type" type))
-    (mailcap-add-mailcap-entry
-     (car tl) (cadr tl)
-     `((viewer . ,viewer)
-       (test . ,(if test test t))
-       (type . ,type)))))
-
-;;;
-;;; The main whabbo
-;;;
-
-(defun mailcap-viewer-lessp (x y)
-  ;; Return t iff viewer X is more desirable than viewer Y
-  (let ((x-wild (string-match "[*?]" (or (cdr-safe (assq 'type x)) "")))
-	(y-wild (string-match "[*?]" (or (cdr-safe (assq 'type y)) "")))
-	(x-lisp (not (stringp (or (cdr-safe (assq 'viewer x)) ""))))
-	(y-lisp (not (stringp (or (cdr-safe (assq 'viewer y)) "")))))
-    (cond
-     ((and x-wild (not y-wild))
-      nil)
-     ((and (not x-wild) y-wild)
-      t)
-     ((and (not y-lisp) x-lisp)
-      t)
-     (t nil))))
-
-(defun mailcap-mime-info (string &optional request)
-  "Get the MIME viewer command for STRING, return nil if none found.
-Expects a complete content-type header line as its argument.
-
-Second argument REQUEST specifies what information to return.  If it is
-nil or the empty string, the viewer (second field of the mailcap
-entry) will be returned.  If it is a string, then the mailcap field
-corresponding to that string will be returned (print, description,
-whatever).  If a number, then all the information for this specific
-viewer is returned.  If `all', then all possible viewers for
-this type is returned."
-  (let (
-	major				; Major encoding (text, etc)
-	minor				; Minor encoding (html, etc)
-	info				; Other info
-	save-pos			; Misc. position during parse
-	major-info			; (assoc major mailcap-mime-data)
-	minor-info			; (assoc minor major-info)
-	test				; current test proc.
-	viewers				; Possible viewers
-	passed				; Viewers that passed the test
-	viewer				; The one and only viewer
-	ctl)
-    (save-excursion
-      (setq ctl (mail-header-parse-content-type (or string "text/plain")))
-      (setq major (split-string (car ctl) "/"))
-      (setq minor (cadr major)
-	    major (car major))
-      (when (setq major-info (cdr (assoc major mailcap-mime-data)))
-	(when (setq viewers (mailcap-possible-viewers major-info minor))
-	  (setq info (mapcar (lambda (a) (cons (symbol-name (car a))
-					       (cdr a)))
-			     (cdr ctl)))
-	  (while viewers
-	    (if (mailcap-viewer-passes-test (car viewers) info)
-		(setq passed (cons (car viewers) passed)))
-	    (setq viewers (cdr viewers)))
-	  (setq passed (sort (nreverse passed) 'mailcap-viewer-lessp))
-	  (setq viewer (car passed))))
-      (when (and (stringp (cdr (assq 'viewer viewer)))
-		 passed)
-	(setq viewer (car passed)))
-      (cond
-       ((and (null viewer) (not (equal major "default")) request)
-	(mailcap-mime-info "default" request))
-       ((or (null request) (equal request ""))
-	(mailcap-unescape-mime-test (cdr (assq 'viewer viewer)) info))
-       ((stringp request)
-	(if (or (eq request 'test) (eq request 'viewer))
-	    (mailcap-unescape-mime-test
-	     (cdr-safe (assoc request viewer)) info)))
-       ((eq request 'all)
-	passed)
-       (t
-	;; MUST make a copy *sigh*, else we modify mailcap-mime-data
-	(setq viewer (copy-tree viewer))
-	(let ((view (assq 'viewer viewer))
-	      (test (assq 'test viewer)))
-	  (if view (setcdr view (mailcap-unescape-mime-test (cdr view) info)))
-	  (if test (setcdr test (mailcap-unescape-mime-test (cdr test) info))))
-	viewer)))))
-
-;;;
-;;; Experimental MIME-types parsing
-;;;
-
-(defvar mailcap-mime-extensions
-  '((""          . "text/plain")
-    (".abs"      . "audio/x-mpeg")
-    (".aif"      . "audio/aiff")
-    (".aifc"     . "audio/aiff")
-    (".aiff"     . "audio/aiff")
-    (".ano"      . "application/x-annotator")
-    (".au"       . "audio/ulaw")
-    (".avi"      . "video/x-msvideo")
-    (".bcpio"    . "application/x-bcpio")
-    (".bin"      . "application/octet-stream")
-    (".cdf"      . "application/x-netcdr")
-    (".cpio"     . "application/x-cpio")
-    (".csh"      . "application/x-csh")
-    (".dvi"      . "application/x-dvi")
-    (".el"       . "application/emacs-lisp")
-    (".eps"      . "application/postscript")
-    (".etx"      . "text/x-setext")
-    (".exe"      . "application/octet-stream")
-    (".fax"      . "image/x-fax")
-    (".gif"      . "image/gif")
-    (".hdf"      . "application/x-hdf")
-    (".hqx"      . "application/mac-binhex40")
-    (".htm"      . "text/html")
-    (".html"     . "text/html")
-    (".icon"     . "image/x-icon")
-    (".ief"      . "image/ief")
-    (".jpg"      . "image/jpeg")
-    (".macp"     . "image/x-macpaint")
-    (".man"      . "application/x-troff-man")
-    (".me"       . "application/x-troff-me")
-    (".mif"      . "application/mif")
-    (".mov"      . "video/quicktime")
-    (".movie"    . "video/x-sgi-movie")
-    (".mp2"      . "audio/x-mpeg")
-    (".mp3"      . "audio/x-mpeg")
-    (".mp2a"     . "audio/x-mpeg2")
-    (".mpa"      . "audio/x-mpeg")
-    (".mpa2"     . "audio/x-mpeg2")
-    (".mpe"      . "video/mpeg")
-    (".mpeg"     . "video/mpeg")
-    (".mpega"    . "audio/x-mpeg")
-    (".mpegv"    . "video/mpeg")
-    (".mpg"      . "video/mpeg")
-    (".mpv"      . "video/mpeg")
-    (".ms"       . "application/x-troff-ms")
-    (".nc"       . "application/x-netcdf")
-    (".nc"       . "application/x-netcdf")
-    (".oda"      . "application/oda")
-    (".patch"    . "text/x-patch")
-    (".pbm"      . "image/x-portable-bitmap")
-    (".pdf"      . "application/pdf")
-    (".pgm"      . "image/portable-graymap")
-    (".pict"     . "image/pict")
-    (".png"      . "image/png")
-    (".pnm"      . "image/x-portable-anymap")
-    (".ppm"      . "image/portable-pixmap")
-    (".ps"       . "application/postscript")
-    (".qt"       . "video/quicktime")
-    (".ras"      . "image/x-raster")
-    (".rgb"      . "image/x-rgb")
-    (".rtf"      . "application/rtf")
-    (".rtx"      . "text/richtext")
-    (".sh"       . "application/x-sh")
-    (".sit"      . "application/x-stuffit")
-    (".snd"      . "audio/basic")
-    (".src"      . "application/x-wais-source")
-    (".tar"      . "archive/tar")
-    (".tcl"      . "application/x-tcl")
-    (".tcl"      . "application/x-tcl")
-    (".tex"      . "application/x-tex")
-    (".texi"     . "application/texinfo")
-    (".tga"      . "image/x-targa")
-    (".tif"      . "image/tiff")
-    (".tiff"     . "image/tiff")
-    (".tr"       . "application/x-troff")
-    (".troff"    . "application/x-troff")
-    (".tsv"      . "text/tab-separated-values")
-    (".txt"      . "text/plain")
-    (".vbs"      . "video/mpeg")
-    (".vox"      . "audio/basic")
-    (".vrml"     . "x-world/x-vrml")
-    (".wav"      . "audio/x-wav")
-    (".wrl"      . "x-world/x-vrml")
-    (".xbm"      . "image/xbm")
-    (".xpm"      . "image/xpm")
-    (".xwd"      . "image/windowdump")
-    (".zip"      . "application/zip")
-    (".ai"       . "application/postscript")
-    (".jpe"      . "image/jpeg")
-    (".jpeg"     . "image/jpeg"))
-  "An assoc list of file extensions and corresponding MIME content-types.")
-
-(defun mailcap-parse-mimetypes (&optional path)
-  ;; Parse out all the mimetypes specified in a unix-style path string PATH
-  (cond
-   (path nil)
-   ((getenv "MIMETYPES") (setq path (getenv "MIMETYPES")))
-   ((memq system-type '(ms-dos ms-windows windows-nt))
-    (setq path (mapconcat 'expand-file-name
-			  '("~/mime.typ" "~/etc/mime.typ") ";")))
-   (t (setq path (mapconcat 'expand-file-name
-			    '("~/.mime-types"
-			      "/etc/mime-types:/usr/etc/mime-types"
-			      "/usr/local/etc/mime-types"
-			      "/usr/local/www/conf/mime-types") ":"))))
-  (let ((fnames (reverse
-		 (split-string path
-			       (if (memq system-type
-					 '(ms-dos ms-windows windows-nt))
-				   ";" ":"))))
-	fname)
-    (while fnames
-      (setq fname (car fnames))
-      (if (and (file-exists-p fname) (file-readable-p fname))
-	  (mailcap-parse-mimetype-file (car fnames)))
-      (setq fnames (cdr fnames)))))
-
-(defun mailcap-parse-mimetype-file (fname)
-  ;; Parse out a mime-types file
-  (let (type				; The MIME type for this line
-	extns				; The extensions for this line
-	save-pos			; Misc. saved buffer positions
-	)
-    (with-temp-buffer
-      (insert-file-contents fname)
-      (mailcap-replace-regexp "#.*" "")
-      (mailcap-replace-regexp "\n+" "\n")
-      (mailcap-replace-regexp "[ \t]+$" "")
-      (goto-char (point-max))
-      (skip-chars-backward " \t\n")
-      (delete-region (point) (point-max))
-      (goto-char (point-min))
-      (while (not (eobp))
-	(skip-chars-forward " \t\n")
-	(setq save-pos (point))
-	(skip-chars-forward "^ \t")
-	(downcase-region save-pos (point))
-	(setq type (buffer-substring save-pos (point)))
-	(while (not (eolp))
-	  (skip-chars-forward " \t")
-	  (setq save-pos (point))
-	  (skip-chars-forward "^ \t\n")
-	  (setq extns (cons (buffer-substring save-pos (point)) extns)))
-	(while extns
-	  (setq mailcap-mime-extensions
-		(cons
-		 (cons (if (= (string-to-char (car extns)) ?.)
-			   (car extns)
-			 (concat "." (car extns))) type)
-		 mailcap-mime-extensions)
-		extns (cdr extns)))))))
-
-(defun mailcap-extension-to-mime (extn)
-  "Return the MIME content type of the file extensions EXTN."
-  (if (and (stringp extn)
-	   (not (eq (string-to-char extn) ?.)))
-      (setq extn (concat "." extn)))
-  (cdr (assoc (downcase extn) mailcap-mime-extensions)))
-
-(defvar mailcap-binary-suffixes
-  (if (memq system-type '(ms-dos windows-nt))
-      '(".exe" ".com" ".bat" ".cmd" ".btm" "")
-    '("")))
-
-(defun mailcap-command-p (command)
-  "Say whether COMMAND is in the exec path.
-The path of COMMAND will be returned iff COMMAND is a command."
-  (let ((path (if (file-name-absolute-p command) '(nil) exec-path))
- 	file dir)
-    (catch 'found
-      (while (setq dir (pop path))
-	(let ((suffixes mailcap-binary-suffixes))
-	  (while suffixes
-	    (when (and (file-executable-p
-			(setq file (expand-file-name
-				    (concat command (pop suffixes))
-				    dir)))
-		       (not (file-directory-p file)))
-	      (throw 'found file))))))))
-
-(defun mailcap-mime-types ()
-  "Return a list of MIME media types."
-  (delete-duplicates (mapcar 'cdr mailcap-mime-extensions)))
-
-(provide 'mailcap)
-
-;;; mailcap.el ends here