Reimplement terminal parameters in C; clean up term.c, create terminal.c.

* lisp/termdev.el (terminal-parameter-alist, terminal-parameters, terminal-parameter-p)
  (terminal-parameter, set-terminal-parameter, terminal-handle-delete-frame): Remove.

* src/term.c (Vring_bell_function, device_list, initial_device)
  (next_device_id, ring_bell, update_begin, update_end)
  (set_terminal_window, cursor_to, raw_cursor_to)
  (clear_to_end, clear_frame, clear_end_of_line)
  (write_glyphs, insert_glyphs, delete_glyphs, ins_del_lines)
  (get_device, Fdisplay_name, create_device, delete_device)
  (Fdelete_display, Fdisplay_live_p, Fdisplay_list)
  Move to terminal.c.
  (syms_of_term): Move their initialization to terminal.c.

* src/terminal.c: New file.
  (device_list, next_device_id, initial_device, Vring_bell_function)
  (ring_bell, update_begin, update_end, set_terminal_window)
  (cursor_to, raw_cursor_to, clear_to_end, clear_frame)
  (clear_end_of_line, write_glyphs, insert_glyphs, delete_glyphs)
  (ins_del_lines, get_device, create_device, delete_device)
  (Fdelete_display, Fdisplay_live_p, Fdisplay_list, Fdisplay_name): Move here.
  (mark_devices, get_terminal_param, store_terminal_param)
  (Fterminal_parameters, Fterminal_parameter)
  (Fmodify_terminal_parameters, Fset_terminal_parameter)
  (init_initial_device, delete_initial_device)
  (syms_of_terminal): New functions.

* lisp/simple.el (normal-erase-is-backspace-setup-frame)
  (normal-erase-is-backspace-mode): Rephrase things
  without terminal-parameter-p.

* lisp/termdev.el (terminal-getenv, terminal-setenv)
  (with-terminal-environment): Ditto.

* mac/makefile.MPW (EmacsObjects): Add terminal.c.x.
  ({Src}terminal.c.x): Add dependencies.

* src/Makefile.in (obj): Add terminal.o.
  (terminal.o): Add dependencies.
  [HAVE_CARBON]: Make terminal.o depend on macgui.h.

* src/alloc.c (mark_devices): Declare.
  (Fgarbage_collect): Call `mark_devices'.

* src/dispextern.h  (set_scroll_region, turn_off_insert)
  (turn_off_highlight, background_highlight, clear_end_of_line_raw)
  (tty_clear_end_of_line, tty_setup_colors, delete_tty): Remove.
  (raw_cursor_to, clear_to_end, tty_turn_off_insert)
  (tty_turn_off_highlight): Add declaration.

* src/emacs.c (main): Call `syms_of_terminal'.

* src/frame.c (get_future_frame_param): New function.
  (Fmake_terminal_frame): Use it.

* src/keyboard.c (pop_kboard): Remove unused variable.
  (Fset_output_flow_control): Return nil.

* src/keymap.h (Fset_keymap_parent): Add EXFUN.

* src/lisp.h (syms_of_terminal): Declare it.

* src/sysdep.c (reset_sys_modes): Update for renames.

* src/term.c (set_scroll_region): Rename to `tty_set_scroll_region'.
  (turn_on_insert): Rename to `tty_turn_on_insert'.
  (turn_off_insert): Rename to `tty_turn_off_insert'.
  (turn_off_highlight): Rename to `tty_turn_off_highlight'.
  (turn_on_highlight): Rename to `tty_turn_on_highlight'.
  (toggle_highligh): Rename to `tty_toggle_highlight'.
  (background_highlight): Rename to `tty_background_highlight'.
  (highlight_if_desired): Rename to `tty_highlight_if_desired'.

  (tty_ring_bell, tty_update_end, tty_set_terminal_window)
  (tty_set_scroll_region, tty_background_highlight)
  (tty_cursor_to, tty_raw_cursor_to, tty_clear_to_end)
  (tty_clear_frame, tty_clear_end_of_line, tty_write_glyphs)
  (tty_insert_glyphs, tty_delete_glyphs, tty_ins_del_lines)
  (term_get_fkeys, tty_setup_colors, dissociate_if_controlling_tty)
  (delete_tty): Add static modifier.

  (tty_reset_terminal_modes, tty_set_terminal_window)
  (tty_set_scroll_region, tty_background_highlight)
  (tty_highlight_if_desired, tty_cursor_to)
  (tty_raw_cursor_to, tty_clear_to_end, tty_clear_frame)
  (tty_clear_end_of_line, tty_write_glyphs, tty_insert_glyphs)
  (tty_delete_glyphs, tty_ins_del_lines, turn_on_face): 
  Update for renames.

* src/termhooks.h (param_alist): New member to struct device.

* src/xterm.h (x_delete_device): Declare.

git-archimport-id: lorentey@elte.hu--2004/emacs--multi-tty--0--patch-460

1 files changed, 40 insertions, 0 deletions

diff --git a/README.multi-tty b/README.multi-tty
index c4e990e5b83..ebe064c2fca 100644
--- a/README.multi-tty
+++ b/README.multi-tty
@@ -401,6 +401,41 @@ is probably not very interesting for anyone else.)
 THINGS TO DO
 ------------
 
+** Implement automatic forwarding of client environment variables to
+   forked processes, as discussed on the multi-tty list.  Terminal
+   parameters are now accessible in C code, so the biggest obstacle is
+   gone.  The `getenv_internal' and `child_setup' functions in
+   callproc.c must be changed to support the following variable:
+
+        terminal-local-environment-variables is a variable defined in ...
+
+        Enable or disable terminal-local environment variables.
+
+        If set to t, `getenv', `setenv' and subprocess creation
+        functions use the environment variables of the emacsclient
+        process that created the selected frame, ignoring
+        `process-environment'.
+
+        If set to nil, Emacs uses `process-environment' and ignores
+        the client environment.
+
+        Otherwise, `terminal-local-environment-variables' should be a
+        list of variable names (represented by Lisp strings) to look
+        up in the client environment.  The rest will come from
+        `process-environment'.
+
+** (Possibly) create hooks in struct device for creating frames on a
+   specific terminal, and eliminate the hackish terminal-related frame
+   parameters (display, tty, tty-type).
+
+        make_terminal_frame
+                create_tty_output
+        
+
+** Move Fsend_string_to_terminal to term.c, and declare get_named_tty
+   as static, removing it from dispextern.h.
+   Move fatal to emacs.c and declare it somewhere.
+
 ** Search for `suspend-emacs' references and replace them with
    `suspend-frame', if necessary.  Ditto for `save-buffers-kill-emacs'
    vs. `save-buffers-kill-display'.
@@ -450,6 +485,11 @@ THINGS TO DO
 ** I think `(set-)terminal-local-value' and the terminal parameter
    mechanism should be integrated into a single framework.
 
+   (Update: `(set-)terminal-local-value' is now eliminated, but the
+   terminal-local variables should still be accessible as terminal
+   parameters.  This also applies to `display-name' and similar
+   functions.)
+
 ** Add the following hooks: after-delete-frame-hook (for server.el,
    instead of delete-frame-functions),
    after-delete-terminal-functions, after-create-terminal-functions.