From: 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/gitweb/?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 -;; Lars Magne Ingebrigtsen -;; 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\" . )) - (\"text\" - (\"plain\" . ))) - -Where 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