-;;; mailcap.el --- Functions for displaying MIME parts
-;; Copyright (C) 1998, 1999, 2000 Free Software Foundation, Inc.
+;;; mailcap.el --- MIME media types configuration
+
+;; Copyright (C) 1998-2013 Free Software Foundation, Inc.
;; Author: William M. Perry <wmperry@aventail.com>
;; Lars Magne Ingebrigtsen <larsi@gnus.org>
-;; Keywords: news, mail
+;; Keywords: news, mail, multimedia
;; This file is part of GNU Emacs.
-;; GNU Emacs is free software; you can redistribute it and/or modify
+;; 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.
+;; 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
+;; 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.
+;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
+;; Provides configuration of MIME media types from directly from Lisp
+;; and via the usual mailcap mechanism (RFC 1524). Deals with
+;; mime.types similarly.
+
;;; Code:
(eval-when-compile (require 'cl))
-(require 'mail-parse)
-(require 'mm-util)
+(autoload 'mail-header-parse-content-type "mail-parse")
+
+;; `mm-delete-duplicates' is an alias for `delete-dups' in Emacs 22.
+(defalias 'mailcap-delete-duplicates
+ (if (fboundp 'delete-dups)
+ 'delete-dups
+ (autoload 'mm-delete-duplicates "mm-util")
+ 'mm-delete-duplicates))
+
+;; `mailcap-replace-in-string' is an alias like `gnus-replace-in-string'.
+(eval-and-compile
+ (cond
+ ((fboundp 'replace-regexp-in-string)
+ (defun mailcap-replace-in-string (string regexp newtext &optional literal)
+ "Replace all matches for REGEXP with NEWTEXT in STRING.
+If LITERAL is non-nil, insert NEWTEXT literally. Return a new
+string containing the replacements.
+This is a compatibility function for different Emacsen."
+ (replace-regexp-in-string regexp newtext string nil literal)))
+ ((fboundp 'replace-in-string)
+ (defalias 'mailcap-replace-in-string 'replace-in-string))))
+
+(defgroup mailcap nil
+ "Definition of viewers for MIME types."
+ :version "21.1"
+ :group 'mime)
(defvar mailcap-parse-args-syntax-table
(let ((table (copy-syntax-table emacs-lisp-mode-syntax-table)))
(modify-syntax-entry ?{ "(" table)
(modify-syntax-entry ?} ")" table)
table)
- "A syntax table for parsing sgml attributes.")
+ "A syntax table for parsing SGML attributes.")
+(eval-and-compile
+ (when (featurep 'xemacs)
+ (condition-case nil
+ (require 'lpr)
+ (error nil))))
+
+(defvar mailcap-print-command
+ (mapconcat 'identity
+ (cons (if (boundp 'lpr-command)
+ lpr-command
+ "lpr")
+ (when (boundp 'lpr-switches)
+ (if (stringp lpr-switches)
+ (list lpr-switches)
+ lpr-switches)))
+ " ")
+ "Shell command (including switches) used to print PostScript files.")
+
+;; Postpone using defcustom for this as it's so big and we essentially
+;; have to have two copies of the data around then. Perhaps just
+;; customize the Lisp viewers and rely on the normal configuration
+;; files for the rest? -- fx
(defvar mailcap-mime-data
- '(("application"
+ `(("application"
+ ("vnd\\.ms-excel"
+ (viewer . "gnumeric %s")
+ (test . (getenv "DISPLAY"))
+ (type . "application/vnd.ms-excel"))
("x-x509-ca-cert"
(viewer . ssl-view-site-cert)
(test . (fboundp 'ssl-view-site-cert))
(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))
+ (viewer . "xdvi -safer %s")
+ (test . (eq window-system 'x))
("needsx11")
- (type . "application/dvi"))
+ (type . "application/dvi")
+ ("print" . "dvips -qRP %s"))
("dvi"
(viewer . "dvitty %s")
(test . (not (getenv "DISPLAY")))
- (type . "application/dvi"))
+ (type . "application/dvi")
+ ("print" . "dvips -qRP %s"))
("emacs-lisp"
(viewer . mailcap-maybe-eval)
(type . "application/emacs-lisp"))
+ ("x-emacs-lisp"
+ (viewer . mailcap-maybe-eval)
+ (type . "application/x-emacs-lisp"))
("x-tar"
(viewer . mailcap-save-binary-file)
(non-viewer . t)
(type . "application/zip")
("copiousoutput"))
("pdf"
- (viewer . "acroread %s")
- (type . "application/pdf"))
+ (viewer . "gv -safer %s")
+ (type . "application/pdf")
+ (test . window-system)
+ ("print" . ,(concat "pdf2ps %s - | " mailcap-print-command)))
+ ("pdf"
+ (viewer . "gpdf %s")
+ (type . "application/pdf")
+ ("print" . ,(concat "pdftops %s - | " mailcap-print-command))
+ (test . (eq window-system 'x)))
+ ("pdf"
+ (viewer . "xpdf %s")
+ (type . "application/pdf")
+ ("print" . ,(concat "pdftops %s - | " mailcap-print-command))
+ (test . (eq window-system 'x)))
+ ("pdf"
+ (viewer . ,(concat "pdftotext %s -"))
+ (type . "application/pdf")
+ ("print" . ,(concat "pdftops %s - | " mailcap-print-command))
+ ("copiousoutput"))
("postscript"
- (viewer . "open %s")
- (type . "application/postscript")
- (test . (eq (mm-device-type) 'ns)))
+ (viewer . "gv -safer %s")
+ (type . "application/postscript")
+ (test . window-system)
+ ("print" . ,(concat mailcap-print-command " %s"))
+ ("needsx11"))
("postscript"
(viewer . "ghostview -dSAFER %s")
(type . "application/postscript")
- (test . (eq (mm-device-type) 'x))
+ (test . (eq window-system 'x))
+ ("print" . ,(concat mailcap-print-command " %s"))
("needsx11"))
("postscript"
(viewer . "ps2ascii %s")
(type . "application/postscript")
(test . (not (getenv "DISPLAY")))
- ("copiousoutput")))
+ ("print" . ,(concat mailcap-print-command " %s"))
+ ("copiousoutput"))
+ ("sieve"
+ (viewer . sieve-mode)
+ (test . (fboundp 'sieve-mode))
+ (type . "application/sieve"))
+ ("pgp-keys"
+ (viewer . "gpg --import --interactive --verbose")
+ (type . "application/pgp-keys")
+ ("needsterminal")))
("audio"
("x-mpeg"
(viewer . "maplay %s")
(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))
+ (test . (eq window-system 'x))
("needsx11"))
("x11-dump"
(viewer . "xwud -in %s")
(type . "image/x-xwd")
("compose" . "xwd -frame > %s")
- (test . (eq (mm-device-type) 'x))
+ (test . (eq window-system 'x))
("needsx11"))
("windowdump"
(viewer . "xwud -in %s")
(type . "image/x-xwd")
("compose" . "xwd -frame > %s")
- (test . (eq (mm-device-type) 'x))
+ (test . (eq window-system 'x))
("needsx11"))
- (".*"
- (viewer . "aopen %s")
- (type . "image/*")
- (test . (eq (mm-device-type) 'ns)))
(".*"
(viewer . "display %s")
(type . "image/*")
- (test . (eq (mm-device-type) 'x))
+ (test . (eq window-system 'x))
("needsx11"))
(".*"
(viewer . "ee %s")
(type . "image/*")
- (test . (eq (mm-device-type) 'x))
+ (test . (eq window-system 'x))
("needsx11")))
("text"
("plain"
(viewer . fundamental-mode)
(type . "text/plain"))
("enriched"
- (viewer . enriched-decode-region)
+ (viewer . enriched-decode)
(test . (fboundp 'enriched-decode))
(type . "text/enriched"))
("html"
(viewer . mm-w3-prepare-buffer)
(test . (fboundp 'w3-prepare-buffer))
- (type . "text/html")))
+ (type . "text/html"))
+ ("dns"
+ (viewer . dns-mode)
+ (test . (fboundp 'dns-mode))
+ (type . "text/dns")))
("video"
("mpeg"
(viewer . "mpeg_play %s")
(type . "video/mpeg")
- (test . (eq (mm-device-type) 'x))
+ (test . (eq window-system 'x))
("needsx11")))
("x-world"
("x-vrml"
(\"plain\" . <info>)))
Where <info> is another assoc list of the various information
-related to the mailcap RFC. This is keyed on the lowercase
+related to the mailcap RFC 1524. This is keyed on the lowercase
attribute name (viewer, test, etc). This looks like:
- ((viewer . viewerinfo)
- (test . testinfo)
- (xxxx . \"string\"))
+ ((viewer . VIEWERINFO)
+ (test . TESTINFO)
+ (xxxx . \"STRING\")
+ FLAG)
-Where viewerinfo specifies how the content-type is viewed. Can be
+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.
+`funcall'ed, 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.")
+TESTINFO is a test for the viewer's applicability, or nil. If nil, it
+means the viewer is always valid. If it is a Lisp function, it is
+called with a list of items from any extra fields from the
+Content-Type header as argument to return a boolean value for the
+validity. Otherwise, if it is a non-function Lisp symbol or list
+whose car is a symbol, it is `eval'led to yield the validity. If it
+is a string or list of strings, it represents a shell command to run
+to return a true or false shell value for the validity.")
+(put 'mailcap-mime-data 'risky-local-variable t)
-(defvar mailcap-download-directory nil
- "*Where downloaded files should go by default.")
+(defcustom mailcap-download-directory nil
+ "*Directory to which `mailcap-save-binary-file' downloads files by default.
+nil means your home directory."
+ :type '(choice (const :tag "Home directory" nil)
+ directory)
+ :group 'mailcap)
-(defvar mailcap-temporary-directory
- (cond ((fboundp 'temp-directory) (temp-directory))
- ((boundp 'temporary-file-directory) temporary-file-directory)
- ("/tmp/"))
- "*Where temporary files go.")
+(defvar mailcap-poor-system-types
+ '(ms-dos windows-nt)
+ "Systems that don't have a Unix-like directory hierarchy.")
;;;
;;; 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
(defvar mailcap-maybe-eval-warning
"*** WARNING ***
-This MIME part contains untrusted and possibly harmful content.
+This MIME part contains untrusted and possibly harmful content.
If you evaluate the Emacs Lisp code contained in it, a lot of nasty
things can happen. Please examine the code very carefully before you
instruct Emacs to evaluate it. You can browse the buffer containing
"Text of warning message displayed by `mailcap-maybe-eval'.
Make sure that this text consists only of few text lines. Otherwise,
Gnus might fail to display all of it.")
-
+
(defun mailcap-maybe-eval ()
- "Maybe evaluate a buffer of emacs lisp code."
+ "Maybe evaluate a buffer of Emacs Lisp code."
(let ((lisp-buffer (current-buffer)))
(goto-char (point-min))
(when
"*Warning*"))))
(unwind-protect
(with-current-buffer buffer
- (insert (substitute-command-keys
+ (insert (substitute-command-keys
mailcap-maybe-eval-warning))
(goto-char (point-min))
(display-buffer buffer)
(cond
(path nil)
((getenv "MAILCAPS") (setq path (getenv "MAILCAPS")))
- ((memq system-type '(ms-dos ms-windows windows-nt))
+ ((memq system-type mailcap-poor-system-types)
(setq path '("~/.mailcap" "~/mail.cap" "~/etc/mail.cap")))
(t (setq path
;; This is per RFC 1524, specifically
"/usr/local/etc/mailcap"))))
(let ((fnames (reverse
(if (stringp path)
- (delete "" (split-string path path-separator))
+ (split-string path path-separator t)
path)))
fname)
(while fnames
(setq mailcap-parsed-p t)))
(defun mailcap-parse-mailcap (fname)
- ;; Parse out the mailcap file specified by 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
(skip-chars-forward " \t")
;;; 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)
+ ;;; RFC for mailcap files (#1524)
(setq viewer "")
- (when (eq (char-after) ?\;)
+ (when (eq (char-after) ?\;)
(forward-char)
(skip-chars-forward " \t")
(setq save-pos (point))
(setq viewer (buffer-substring save-pos (point)))))
(setq save-pos (point))
(end-of-line)
- (unless (equal viewer "")
+ (unless (equal viewer "")
(setq info (nconc (list (cons 'viewer viewer)
(cons 'type (concat major "/"
(if (string= minor ".*")
(beginning-of-line)))))
(defun mailcap-parse-mailcap-extras (st nd)
- ;; Grab all the extra stuff from a mailcap entry
+ "Grab all the extra stuff from a mailcap entry."
(let (
name ; From name=
value ; its value
(skip-chars-forward ";"))
(setq done t))))
(setq value (buffer-substring val-pos (point))))
- (setq results (cons (cons name value) results))
+ ;; `test' as symbol, others like "copiousoutput" and "needsx11" as
+ ;; strings
+ (setq results (cons (cons (if (string-equal name "test")
+ 'test
+ 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
- )
+ "Return non-nil if mailcap entry INFO passes its test clause.
+Also return non-nil if no test clause is present."
+ (let ((test (assq 'test info)) ; The test clause
+ status)
(setq status (and test (split-string (cdr test) " ")))
(if (and (or (assoc "needsterm" info)
(assoc "needsterminal" info)
;;;
(defun mailcap-possible-viewers (major minor)
- ;; Return a list of possible viewers from MAJOR for minor type MINOR
+ "Return a list of possible viewers from MAJOR for minor type MINOR."
(let ((exact '())
(wildcard '()))
(while major
(setq save-pos (point))
(skip-chars-forward "%")
(setq save-chr (char-after (point)))
+ ;; Escapes:
+ ;; %s: name of a file for the body data
+ ;; %t: content-type
+ ;; %{<parameter name}: value of parameter in mailcap entry
+ ;; %n: number of sub-parts for multipart content-type
+ ;; %F: a set of content-type/filename pairs for multiparts
(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)
+ ((memq save-chr '(?M ?n ?F))
(delete-region save-pos (progn (forward-char 1) (point)))
(insert "\"\""))
((= save-chr ?{)
(insert (or (cdr (assoc subst type-info)) "\"\"")))
(t nil))))
(buffer-string)))
- (t (error "Bad value to mailcap-unescape-mime-test. %s" test)))))
+ (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).
+ "Return non-nil if viewer specified by VIEWER-INFO passes its test clause.
+Also return non-nil if it has no test clause. TYPE-INFO is an argument
+to supply to the test."
(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)))
+ (cond ((setq cache (assoc test mailcap-viewer-test-cache))
+ (cadr cache))
+ ((not test-info) t) ; No test clause
+ (t
+ (setq
+ result
+ (cond
+ ((not test) nil) ; Already failed test
+ ((eq test t) t) ; Already passed test
+ ((functionp test) ; Lisp function as 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))
+ (eq 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)))
(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))
+ (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))
(equal (assq 'viewer info) ; Keep alternative viewer
(assq 'viewer cur-minor)))
- (setcdr cur-minor info))
- (t
- (setcdr old-major (cons (cons minor info) (cdr old-major))))))
+ (setcdr cur-minor info))
+ (t
+ (setcdr old-major (cons (cons minor info) (cdr old-major))))))
)))
(defun mailcap-add (type viewer &optional test)
;;;
(defun mailcap-viewer-lessp (x y)
- ;; Return t iff viewer X is more desirable than viewer Y
+ "Return t if 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)) ""))))
t)
(t nil))))
-(defun mailcap-mime-info (string &optional request)
+(defun mailcap-mime-info (string &optional request no-decode)
"Get the MIME viewer command for STRING, return nil if none found.
Expects a complete content-type header line as its argument.
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."
+this type is returned.
+
+If NO-DECODE is non-nil, don't decode STRING."
+ ;; NO-DECODE avoids calling `mail-header-parse-content-type' from
+ ;; `mail-parse.el'
(let (
major ; Major encoding (text, etc)
minor ; Minor encoding (html, etc)
viewer ; The one and only viewer
ctl)
(save-excursion
- (setq ctl (mail-header-parse-content-type (or string "text/plain")))
+ (setq ctl
+ (if no-decode
+ (list (or string "text/plain"))
+ (mail-header-parse-content-type (or string "text/plain"))))
(setq major (split-string (car ctl) "/"))
(setq minor (cadr major)
major (car major))
(setq viewer (car passed)))
(cond
((and (null viewer) (not (equal major "default")) request)
- (mailcap-mime-info "default" request))
+ (mailcap-mime-info "default" request no-decode))
((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)))
+ (mailcap-unescape-mime-test
+ (cdr-safe (assoc request viewer)) info))
((eq request 'all)
passed)
(t
;;;
(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")
- (".css" . "text/css")
- (".dvi" . "application/x-dvi")
- (".diff" . "text/x-patch")
- (".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.")
+ '(("" . "text/plain")
+ (".1" . "text/plain") ;; Manual pages
+ (".3" . "text/plain")
+ (".8" . "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")
+ (".css" . "text/css")
+ (".dvi" . "application/x-dvi")
+ (".diff" . "text/x-patch")
+ (".dpatch". "test/x-patch")
+ (".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")
+ (".pod" . "text/plain")
+ (".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")
+ (".siv" . "application/sieve")
+ (".snd" . "audio/basic")
+ (".soa" . "text/dns")
+ (".src" . "application/x-wais-source")
+ (".tar" . "archive/tar")
+ (".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")
+ (".xls" . "application/vnd.ms-excel")
+ (".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")
+ (".org" . "text/x-org"))
+ "An alist of file extensions and corresponding MIME content-types.
+This exists for you to customize the information in Lisp. It is
+merged with values from mailcap files by `mailcap-parse-mimetypes'.")
(defvar mailcap-mimetypes-parsed-p nil)
(defun mailcap-parse-mimetypes (&optional path force)
- "Parse out all the mimetypes specified in a unix-style path string PATH.
+ "Parse out all the mimetypes specified in a Unix-style path string PATH.
Components of PATH are separated by the `path-separator' character
appropriate for this system. If PATH is omitted, use the value of
environment variable MIMETYPES if set; otherwise use a default path.
(cond
(path nil)
((getenv "MIMETYPES") (setq path (getenv "MIMETYPES")))
- ((memq system-type '(ms-dos ms-windows windows-nt))
+ ((memq system-type mailcap-poor-system-types)
(setq path '("~/mime.typ" "~/etc/mime.typ")))
(t (setq path
;; mime.types seems to be the normal name, definitely so
"/usr/local/etc/mime-types"
"/usr/local/www/conf/mime-types"))))
(let ((fnames (reverse (if (stringp path)
- (delete "" (split-string path path-separator))
+ (split-string path path-separator t)
path)))
fname)
(while fnames
(setq mailcap-mimetypes-parsed-p t)))
(defun mailcap-parse-mimetype-file (fname)
- ;; Parse out a mime-types file
+ "Parse out a mime-types file FNAME."
(let (type ; The MIME type for this line
extns ; The extensions for this line
save-pos ; Misc. saved buffer positions
(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))))))))
+;; Unused?
+(defalias 'mailcap-command-p 'executable-find)
(defun mailcap-mime-types ()
"Return a list of MIME media types."
(mailcap-parse-mimetypes)
- (mm-delete-duplicates
+ (mailcap-delete-duplicates
(nconc
(mapcar 'cdr mailcap-mime-extensions)
(apply
(cdr l))))
mailcap-mime-data)))))
+;;;
+;;; Useful supplementary functions
+;;;
+
+(defun mailcap-file-default-commands (files)
+ "Return a list of default commands for FILES."
+ (mailcap-parse-mailcaps)
+ (mailcap-parse-mimetypes)
+ (let* ((all-mime-type
+ ;; All unique MIME types from file extensions
+ (mailcap-delete-duplicates
+ (mapcar (lambda (file)
+ (mailcap-extension-to-mime
+ (file-name-extension file t)))
+ files)))
+ (all-mime-info
+ ;; All MIME info lists
+ (mailcap-delete-duplicates
+ (mapcar (lambda (mime-type)
+ (mailcap-mime-info mime-type 'all))
+ all-mime-type)))
+ (common-mime-info
+ ;; Intersection of mime-infos from different mime-types;
+ ;; or just the first MIME info for a single MIME type
+ (if (cdr all-mime-info)
+ (delq nil (mapcar (lambda (mi1)
+ (unless (memq nil (mapcar
+ (lambda (mi2)
+ (member mi1 mi2))
+ (cdr all-mime-info)))
+ mi1))
+ (car all-mime-info)))
+ (car all-mime-info)))
+ (commands
+ ;; Command strings from `viewer' field of the MIME info
+ (mailcap-delete-duplicates
+ (delq nil (mapcar (lambda (mime-info)
+ (let ((command (cdr (assoc 'viewer mime-info))))
+ (if (stringp command)
+ (mailcap-replace-in-string
+ ;; Replace mailcap's `%s' placeholder
+ ;; with dired's `?' placeholder
+ (mailcap-replace-in-string
+ ;; Remove the final filename placeholder
+ command "[ \t\n]*\\('\\)?%s\\1?[ \t\n]*\\'" "" t)
+ "%s" "?" t))))
+ common-mime-info)))))
+ commands))
+
(provide 'mailcap)
;;; mailcap.el ends here