;;; tramp-compat.el --- Tramp compatibility functions
-;; Copyright (C) 2007-2013 Free Software Foundation, Inc.
+;; Copyright (C) 2007-2015 Free Software Foundation, Inc.
;; Author: Michael Albinus <michael.albinus@gmx.de>
;; Keywords: comm, processes
(eval-and-compile
+ ;; GNU Emacs 22.
+ (unless (fboundp 'ignore-errors)
+ (load "cl" 'noerror)
+ (load "cl-macs" 'noerror))
+
;; Some packages must be required for XEmacs, because we compile
;; with -no-autoloads.
(when (featurep 'xemacs)
(require 'outline)
(require 'passwd)
(require 'pp)
- (require 'regexp-opt))
+ (require 'regexp-opt)
+ (require 'time-date))
(require 'advice)
(require 'custom)
"Like `copy-file' for Tramp files (compat function)."
(cond
(preserve-extended-attributes
- (tramp-compat-funcall
- 'copy-file filename newname ok-if-already-exists keep-date
- preserve-uid-gid preserve-extended-attributes))
+ (condition-case nil
+ (tramp-compat-funcall
+ 'copy-file filename newname ok-if-already-exists keep-date
+ preserve-uid-gid preserve-extended-attributes)
+ (wrong-number-of-arguments
+ (tramp-compat-copy-file
+ filename newname ok-if-already-exists keep-date preserve-uid-gid))))
(preserve-uid-gid
- (tramp-compat-funcall
- 'copy-file filename newname ok-if-already-exists keep-date
- preserve-uid-gid))
+ (condition-case nil
+ (tramp-compat-funcall
+ 'copy-file filename newname ok-if-already-exists keep-date
+ preserve-uid-gid)
+ (wrong-number-of-arguments
+ (tramp-compat-copy-file
+ filename newname ok-if-already-exists keep-date))))
(t
(copy-file filename newname ok-if-already-exists keep-date))))
directory 'full "^\\([^.]\\|\\.\\([^.]\\|\\..\\)\\).*")))
(delete-directory directory))))
+;; MUST-SUFFIX doesn't exist on XEmacs.
+(defun tramp-compat-load (file &optional noerror nomessage nosuffix must-suffix)
+ "Like `load' for Tramp files (compat function)."
+ (if must-suffix
+ (tramp-compat-funcall 'load file noerror nomessage nosuffix must-suffix)
+ (load file noerror nomessage nosuffix)))
+
;; `number-sequence' does not exist in XEmacs. Implementation is
;; taken from Emacs 23.
(defun tramp-compat-number-sequence (from &optional to inc)
;; Fallback, if there is no Lisp support yet.
(t (let ((default-directory
- (if (file-remote-p default-directory)
+ (if (tramp-tramp-file-p default-directory)
(tramp-compat-temporary-file-directory)
default-directory))
(unix95 (getenv "UNIX95"))
"`dos', `unix', or `mac'")))))
(t (error "Can't change EOL conversion -- is MULE missing?"))))
+;; `replace-regexp-in-string' does not exist in XEmacs.
+;; Implementation is taken from Emacs 24.
+(if (fboundp 'replace-regexp-in-string)
+ (defalias 'tramp-compat-replace-regexp-in-string 'replace-regexp-in-string)
+ (defun tramp-compat-replace-regexp-in-string
+ (regexp rep string &optional fixedcase literal subexp start)
+ "Replace all matches for REGEXP with REP in STRING.
+
+Return a new string containing the replacements.
+
+Optional arguments FIXEDCASE, LITERAL and SUBEXP are like the
+arguments with the same names of function `replace-match'. If START
+is non-nil, start replacements at that index in STRING.
+
+REP is either a string used as the NEWTEXT arg of `replace-match' or a
+function. If it is a function, it is called with the actual text of each
+match, and its value is used as the replacement text. When REP is called,
+the match data are the result of matching REGEXP against a substring
+of STRING.
+
+To replace only the first match (if any), make REGEXP match up to \\'
+and replace a sub-expression, e.g.
+ (replace-regexp-in-string \"\\\\(foo\\\\).*\\\\'\" \"bar\" \" foo foo\" nil nil 1)
+ => \" bar foo\""
+
+ (let ((l (length string))
+ (start (or start 0))
+ matches str mb me)
+ (save-match-data
+ (while (and (< start l) (string-match regexp string start))
+ (setq mb (match-beginning 0)
+ me (match-end 0))
+ ;; If we matched the empty string, make sure we advance by one char
+ (when (= me mb) (setq me (min l (1+ mb))))
+ ;; Generate a replacement for the matched substring.
+ ;; Operate only on the substring to minimize string consing.
+ ;; Set up match data for the substring for replacement;
+ ;; presumably this is likely to be faster than munging the
+ ;; match data directly in Lisp.
+ (string-match regexp (setq str (substring string mb me)))
+ (setq matches
+ (cons (replace-match (if (stringp rep)
+ rep
+ (funcall rep (match-string 0 str)))
+ fixedcase literal str subexp)
+ (cons (substring string start mb) ; unmatched prefix
+ matches)))
+ (setq start me))
+ ;; Reconstruct a string from the pieces.
+ (setq matches (cons (substring string start l) matches)) ; leftover
+ (apply #'concat (nreverse matches))))))
+
+;; `default-toplevel-value' has been declared in Emacs 24.
+(unless (fboundp 'default-toplevel-value)
+ (defalias 'default-toplevel-value 'symbol-value))
+
(add-hook 'tramp-unload-hook
(lambda ()
+ (unload-feature 'tramp-loaddefs 'force)
(unload-feature 'tramp-compat 'force)))
(provide 'tramp-compat)