Importing Pterodactyl Gnus v0.87.

[elisp/gnus.git-] / lisp / mm-util.el

diff --git a/lisp/mm-util.el b/lisp/mm-util.el
index 80f1989..2ade070 100644 (file)
--- a/lisp/mm-util.el
+++ b/lisp/mm-util.el
@@ -39,7 +39,7 @@
   (cond
    ((not (fboundp 'coding-system-p)) nil)
    (mm-running-xemacs  ;; XEmacs
-    (and (coding-system-p 'no-conversion) 'no-conversion))
+    'no-conversion)
    (mm-running-ntemacs ;; NTEmacs
     (and (coding-system-p 'raw-text-dos) 'raw-text-dos))
    ((coding-system-p 'raw-text) 'raw-text) ;; Emacs
@@ -58,16 +58,21 @@
     (iso-8859-7 greek-iso8859-7)
     (iso-8859-8 hebrew-iso8859-8)
     (iso-8859-9 latin-iso8859-9)
+    (viscii vietnamese-viscii-lower)
     (iso-2022-jp-2 japanese-jisx0208)
     (iso-2022-jp latin-jisx0201
                 japanese-jisx0208-1978)
     (euc-kr korean-ksc5601)
     (cn-gb-2312 chinese-gb2312)
     (cn-big5 chinese-big5-1 chinese-big5-2)
+    (tibetan tibetan)
+    (thai-tis620 thai-tis620)
+    (iso-2022-7bit ethiopic arabic-1-column arabic-2-column)
     (iso-2022-jp-2 latin-iso8859-1 greek-iso8859-7
                   latin-jisx0201 japanese-jisx0208-1978
                   chinese-gb2312 japanese-jisx0208
-                  korean-ksc5601 japanese-jisx0212)
+                  korean-ksc5601 japanese-jisx0212
+                  katakana-jisx0201)
     (iso-2022-int-1 latin-iso8859-1 greek-iso8859-7
                    latin-jisx0201 japanese-jisx0208-1978
                    chinese-gb2312 japanese-jisx0208
@@ -121,7 +126,6 @@
 (defvar mm-charset-synonym-alist
   '((big5 . cn-big5)
     (gb2312 . cn-gb-2312)
-    (iso-2022-jp-2 . iso-2022-7bit-ss2)
     (x-ctext . ctext))
   "A mapping from invalid charset names to the real charset names.")
 
@@ -200,10 +204,19 @@ used as the line break code type of the coding system."
             'mime-charset))
        (and (eq charset 'ascii)
            'us-ascii)
-       (get-charset-property charset 'prefered-coding-system))
+       (get-charset-property charset 'prefered-coding-system)
+       (mm-mule-charset-to-mime-charset charset))
     ;; This is for XEmacs.
     (mm-mule-charset-to-mime-charset charset)))
 
+(defun mm-find-mime-charset-region (b e)
+  "Return the MIME charsets needed to encode the region between B and E."
+  (let ((charsets
+        (mapcar 'mm-mime-charset
+                (delq 'ascii
+                      (mm-find-charset-region b e)))))
+    (delete-duplicates charsets)))
+
 (defsubst mm-multibyte-p ()
   "Say whether multibyte is enabled."
   (and (boundp 'enable-multibyte-characters)
@@ -239,8 +252,8 @@ See also `with-temp-file' and `with-output-to-string'."
   "Return a list of charsets in the region."
   (cond
    ((and (boundp 'enable-multibyte-characters)
-        enable-multibyte-characters
-        (fboundp 'find-charset-region))
+        enable-multibyte-characters
+        (fboundp 'find-charset-region))
     (find-charset-region b e))
    ((not (boundp 'current-language-environment))
     (save-excursion
@@ -273,6 +286,19 @@ See also `with-temp-file' and `with-output-to-string'."
            mm-mime-mule-charset-alist)
     nil t)))
 
+(defun mm-quote-arg (arg)
+  "Return a version of ARG that is safe to evaluate in a shell."
+  (let ((pos 0) new-pos accum)
+    ;; *** bug: we don't handle newline characters properly
+    (while (setq new-pos (string-match "[]*[;!'`\"$\\& \t{} |()<>]" arg pos))
+      (push (substring arg pos new-pos) accum)
+      (push "\\" accum)
+      (push (list (aref arg new-pos)) accum)
+      (setq pos (1+ new-pos)))
+    (if (= pos 0)
+        arg
+      (apply 'concat (nconc (nreverse accum) (list (substring arg pos)))))))
+
 (provide 'mm-util)
 
 ;;; mm-util.el ends here