(rlogin): Call rlogin-mode after adding rlogin-carriage-filter to output

[gnu-emacs] / lisp / env.el

diff --git a/lisp/env.el b/lisp/env.el
index b285da4847b09d1cebd4c87b702c9559969dd90b..c0e68f634126d572cdbb7b7be9ea52b4ffd4ba7c 100644 (file)
--- a/lisp/env.el
+++ b/lisp/env.el
@@ -1,32 +1,33 @@
 ;;; env.el --- functions to manipulate environment variables.
 
-;;; Copyright 1991, 1994 Free Software Foundation, Inc.
+;; Copyright (C) 1991, 1994 Free Software Foundation, Inc.
 
 ;; Maintainer: FSF
 ;; Keywords: processes, unix
 
-;;; This file is part of GNU Emacs.
+;; 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 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.
+;; 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, 675 Mass Ave, Cambridge, MA 02139, USA.
+;; 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:
 
-;; UNIX processes inherit a list of name-to-string associations from
-;; their parents called their `environment'; these are commonly used
-;; to control program options.  This package permits you to set
-;; environment variables to be passed to any sub-process run under Emacs.
+;; UNIX processes inherit a list of name-to-string associations from their
+;; parents called their `environment'; these are commonly used to control
+;; program options.  This package permits you to set environment variables
+;; to be passed to any sub-process run under Emacs.
 
 ;;; Code:
 
@@ -35,7 +36,8 @@
 
 (defun read-envvar-name (prompt &optional mustmatch)
   "Read environment variable name, prompting with PROMPT.
-Optional second arg MUSTMATCH, if non-nil, means require existing envvar name."
+Optional second arg MUSTMATCH, if non-nil, means require existing envvar name.
+If it is also not t, RET does not exit if it does non-null completion."
   (completing-read prompt
                   (mapcar (function
                            (lambda (enventry)
@@ -60,7 +62,7 @@ appears at the front of the history list when you type in the new value.
 This function works by modifying `process-environment'."
   (interactive
    (if current-prefix-arg
-       (list (read-envvar-name "Clear environment variable: " t) nil t)
+       (list (read-envvar-name "Clear environment variable: " 'exact) nil t)
      (let* ((var (read-envvar-name "Set environment variable: " nil))
            (oldval (getenv var))
            newval
@@ -91,6 +93,8 @@ This function works by modifying `process-environment'."
          (case-fold-search nil)
          (scan process-environment)
          found)
+      (if (string-equal "TZ" variable)
+         (set-time-zone-rule value))
       (while scan
        (cond ((string-match pattern (car scan))
               (setq found t)