Reimplement and extend support for terminal-local environment variables.

* lisp/termdev.el: New file.  Move terminal parameter-related functions
  here from frame.el.
  (terminal-getenv, with-terminal-environment): Reimplement and extend.
  (terminal-setenv, terminal-setenv-internal): New functions.

* lisp/frame.el (make-frame-on-tty, framep-on-display, suspend-frame):
  Extend doc string, update parameter names.
  (terminal-id, terminal-parameter-alist, terminal-parameters)
  (terminal-parameter-p, terminal-parameter, set-terminal-parameter)
  (terminal-handle-delete-frame, terminal-getenv, terminal-getenv)
  (with-terminal-environment): Move to termdev.el.

* lisp/loadup.el: Load termdev as well.
* lisp/Makefile.in (lisp, shortlisp): Add termdev.elc.
* lisp/makefile.MPW (shortlisp): Ditto.

* lisp/ebuff-menu.el (electric-buffer-menu-mode-map): Bind C-z to
  `suspend-frame', not `suspend-emacs'.
* lisp/echistory.el (electric-history-map): Ditto.
* lisp/ebrowse.el (ebrowse-electric-list-mode-map): Ditto.
* lisp/ebrowse.el (ebrowse-electric-position-mode-map): Ditto.

* lisp/startup.el (normal-splash-screen): Use `save-buffers-kill-display'
  instead of `save-buffers-kill-emacs'.

* lisp/x-win.el (x-initialize-window-system): Add 'global-ok option to
  `terminal-getenv'.

* src/term.c (suspend-tty): Update doc string.

git-archimport-id: lorentey@elte.hu--2004/emacs--multi-tty--0--patch-456

1 files changed, 34 insertions, 23 deletions

diff --git a/README.multi-tty b/README.multi-tty
index 5deb706c3c8..5cc5fbca320 100644
--- a/README.multi-tty
+++ b/README.multi-tty
@@ -89,7 +89,7 @@ frames.  It has been changed open new Emacs frames by default.
 
 The multi-tty branch has been scheduled for inclusion in the next
 major release of Emacs (version 23).  I expect the merge into the
-development trunk to occur sometime during next year (2005), after the
+development trunk to occur sometime during next year (2006), after the
 merge of the Unicode branch.
 
 Tested on GNU/Linux, Solaris 8, FreeBSD and OpenBSD.  Please let me
@@ -140,36 +140,36 @@ Known problems:
           system-dependent source files need to be adapted
           accordingly.  The changes are mostly trivial, so almost
           anyone can help, if only by compiling the branch and
-          reporting the compiler errors.  (It is not worth to do this
-          yet, though.)
+          reporting the compiler errors.
 
 
 HOW TO GET THE BRANCH
 ---------------------
 
-The branch uses GNU Arch (http://www.gnuarch.org) for version control.
+The branch uses Bazaar 1 (http://bazaar.canonical.com) for version control.
 
 Retrieving the latest version of the branch:
 
-        tla register-archive -f http://lorentey.hu/arch/2004/
-        tla get lorentey@elte.hu--2004/emacs--multi-tty <directory>
+        baz register-archive -f http://aszt.inf.elte.hu/~lorentey/mirror/arch/2004
+        baz get lorentey@elte.hu--2004/emacs--multi-tty <directory>
 
-This incantation uses my private archive mirror that is hosted on a
-relatively low-bandwidth site; if you are outside Hungary, you will
-probably want to you use my secondary mirror: (Note that the -f option
-will overwrite the archive location if you have previously registered
-the Hungarian one.)
+This incantation uses an archive mirror that is hosted on a
+high-bandwidth site.  Please note that on average there is a two-hour
+delay for commits to arrive on this mirror.  My primary mirror is on the
+low-bandwidth http://lorentey.hu/ site:
 
-        tla register-archive -f http://aszt.inf.elte.hu/~lorentey/mirror/arch/2004
-        tla get lorentey@elte.hu--2004/emacs--multi-tty <directory>
+        baz register-archive -f http://lorentey.hu/arch/2004/
+        baz get lorentey@elte.hu--2004/emacs--multi-tty <directory>
 
-        http://aszt.inf.elte.hu/~lorentey/mirror/arch/2004
+This is "instantly" updated, but very slow from outside Hungary.
+(By "instantly" I mean as soon as I connect the notebook I work on to
+a network.  It could take days.)
 
 The Arch supermirror provides mirroring services for all public Arch
 repositories.  We have a mirror there, too, if you prefer.
 
-        tla register-archive -f http://mirrors.sourcecontrol.net/lorentey%40elte.hu--2004
-        tla get lorentey@elte.hu--2004/emacs--multi-tty <directory>
+        baz register-archive -f http://mirrors.sourcecontrol.net/lorentey%40elte.hu--2004
+        baz get lorentey@elte.hu--2004/emacs--multi-tty <directory>
 
 My GPG key id is 0FB27A3F; it is available from
 hkp://wwwkeys.eu.pgp.net/, or from my homepage at
@@ -179,16 +179,20 @@ Don't worry if the above checkout takes a few minutes to complete;
 once you have a source tree, updating it to the latest revision will
 be _much_ faster.  Use the following command for the update:
 
-        tla replay
+        baz replay
 
-You can find more information about Arch on http://wiki.gnuarch.org/.
-It's a wonderful source control system, I highly recommend it.
+You can find more information about Bazaar on
+http://bazaar.canonical.com/.  It's a distributed source control
+system that is somewhat less broken than competing projects.
 
-If you don't have tla, the branch has a homepage from which you can
+If you don't have Bazaar, the branch has a homepage from which you can
 download conventional patches against Emacs CVS HEAD:
 
         http://lorentey.hu/project/emacs.html
 
+I suggest you use Bazaar whenever feasible.
+
+
 DEBIAN PACKAGES
 ---------------
 
@@ -244,9 +248,10 @@ finish editing the specified files (C-x #), but delete-frame (C-x 5 0)
 also works.  Of course, you can create frames on more than two tty
 devices.
 
-Creating new frames on the same tty with C-x 5 2 works, and they
-behave the same way as in previous Emacs versions.  If you exit emacs,
-all terminals should be restored to their previous states.
+Creating new frames on the same tty with C-x 5 2 (make-frame-command)
+works, and they behave the same way as in previous Emacs versions.  If
+you exit emacs, all terminals should be restored to their previous
+states.
 
 This is work in progress, and probably full of bugs.  It is a good
 idea to run emacs from gdb, so that you'll have a live instance to
@@ -384,6 +389,8 @@ For the NEWS file:  (Needs much, much work)
 
 *** talk.el has been extended for multiple tty support.
 
+*** C-z now invokes `suspend-frame', C-x C-c now invokes
+    `save-buffers-kill-frame'.
 
 * * *
 
@@ -393,6 +400,10 @@ is probably not very interesting for anyone else.)
 THINGS TO DO
 ------------
 
+** Search for `suspend-emacs' references and replace them with
+   `suspend-frame', if necessary.  Ditto for `save-buffers-kill-emacs'
+   vs. `save-buffers-kill-display'.
+
 ** Emacs crashes when a tty frame is resized so that there is no space
    for all its windows.  (Tom Schutzer-Weissmann)