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Obsolete rfc2047-quote-special-characters-in-quoted-strings (bug#38200)

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* lisp/mail/rfc2047.el
(rfc2047-quote-special-characters-in-quoted-strings): Make obsolete
instead of removing it.
This commit is contained in:
Katsumi Yamaoka 2019-11-14 08:27:58 +00:00
parent 7a1f401b83
commit 4f45e89852
1 changed files with 50 additions and 0 deletions
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50
lisp/mail/rfc2047.el
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@ -184,6 +184,56 @@ This is either `base64' or `quoted-printable'."
(re-search-forward ":[ \t\n]*" nil t)
(buffer-substring-no-properties (point) (point-max)))))
(make-obsolete 'rfc2047-quote-special-characters-in-quoted-strings nil "27.1")
(defun rfc2047-quote-special-characters-in-quoted-strings (&optional
encodable-regexp)
"Quote special characters with `\\'s in quoted strings.
Quoting will not be done in a quoted string if it contains characters
matching ENCODABLE-REGEXP or it is within parentheses."
(goto-char (point-min))
(let ((tspecials (concat "[" ietf-drums-tspecials "]"))
(start (point))
beg end)
(with-syntax-table (standard-syntax-table)
(while (not (eobp))
(if (ignore-errors
(forward-list 1)
(eq (char-before) ?\)))
(forward-list -1)
(goto-char (point-max)))
(save-restriction
(narrow-to-region start (point))
(goto-char start)
(while (search-forward "\"" nil t)
(setq beg (match-beginning 0))
(unless (eq (char-before beg) ?\\)
(goto-char beg)
(setq beg (1+ beg))
(condition-case nil
(progn
(forward-sexp)
(setq end (1- (point)))
(goto-char beg)
(if (and encodable-regexp
(re-search-forward encodable-regexp end t))
(goto-char (1+ end))
(save-restriction
(narrow-to-region beg end)
(while (re-search-forward tspecials nil 'move)
(if (eq (char-before) ?\\)
(if (looking-at tspecials) ;; Already quoted.
(forward-char)
(insert "\\"))
(goto-char (match-beginning 0))
(insert "\\")
(forward-char))))
(forward-char)))
(error
(goto-char beg)))))
(goto-char (point-max)))
(forward-list 1)
(setq start (point))))))
(defvar rfc2047-encoding-type 'address-mime
"The type of encoding done by `rfc2047-encode-region'.
This should be dynamically bound around calls to