* buffer.h (struct buffer): New members: newline_cache,
width_run_cache, width_table, and cache_long_line_scans.

* buffer.c: #include region-cache.h.
(Fget_buffer_create): Initialize new members of struct buffer.
(Fkill_buffer): Free memory occupied by caches.
(init_buffer_once): Set default value for cache_long_line_scans in
buffer_defaults, and give it a bit in buffer_local_flags.
(syms_of_buffer): Add DEFVAR_PER_BUFFER for cache_long_line_scans.

* Makefile.in.in (obj) Add region-cache.o to the list of files.
(region-cache.o): New target.
(buffer.o, indent.o, search.o): Depend on region-cache.h.

Document cache-long-line-scans in @node Text Lines.
Cross-reference it in @node Screen Lines.

Added entry for cache-long-line-scans

(file_name_completion): Ignore files "." and ".." in first pass.
(Ffile_name_completion): Perform the completion even if the
name part is empty.

(test_completion): New function, extracted from do_completion.
(do_completion): Use test_completion.
(Fminibuffer_complete_and_exit): If completion is already
exact, don't try to complete it.

(add-log-current-defun): In texinfo-mode,
handle the case of no commas after @node.

(inhibit_local_menu_bar_menus): New variable.
(read_char_x_menu_prompt): Optionally don't use local maps.
(syms_of_keyboard): Set up Lisp variable.

(fit_to_screen): Don't put the menu off the left or top.

(rmail-delete-forward): Use rmail-select-summary.

Add a tip about enabling/disabling features.

(enum Lisp_Misc_Type): New type.
(struct Lisp_Marker): Add a member of that type.  Delete unused member
`modified'.

(make_gap): Keep input blocked till after we set BEG_ADDR.

Re-delete code deleted in rms's Oct 5 change.

(compilation-mode-font-lock-keywords,
rmail-summary-font-lock-keywords, dired-font-lock-keywords,
shell-font-lock-keywords, texi-font-lock-keywords,
perl-font-lock-keywords): Deleted.

(font-lock-mode): Doc fix; use add/remove-hook, not
setq; removed make-local-variable of font-lock-no-comments.
(font-lock-set-defaults): Do it there, and use:
(font-lock-defaults-alist): Use it to set font-lock-keywords,
font-lock-keywords-case-fold-search and font-lock-no-comments.
(turn-on-font-lock): New function.
(font-lock-fontify-buffer): Made interruptible; deleted messages.

(font-lock-fontify-region): Made syntax state reliable
by widening within new restriction; let cstart and cend for speed;
outputs message.
(font-lock-after-change-function): Remove spurious goto-char and use
forward-line, not 1+ end-of-line, for end of fontification region.
(font-lock-any-properties-p): Removed, use text-property-not-all.

(font-lock-*-face): facename values are themselves.
(font-lock-variable-name-face, font-lock-reference-face): New vars.
(font-lock-doc-string-face): Removed.
(font-lock-keywords): Extended value syntax.
(font-lock-hack-keywords): Cope with it; outputs initial message.

Merged in face-lock.el:
(font-lock-display-type, font-lock-background-mode)
(font-lock-face-attributes): New variables, use it.
(font-lock-make-face): New function, use them.

(comint-check-proc): Recognise `open'.
(comint-exec): Use open-network-stream if command is a cons pair.

(pascal-font-lock-keywords):  New variable.
(pascal-mode): Set comment-start-skip and comment-end.
Set font-lock-keywords locally.

(perl-font-lock-keywords): New variable.

(perl-mode): Set font-lock-keywords locally.

(asm-font-lock-keywords): New variable.

(asm-mode): Set font-lock-keywords locally.

(texinfo-font-lock-keywords): New variable.

(texinfo-mode): Set font-lock-keywords locally.

(shell-font-lock-keywords): New variable.

(shell-mode): Set font-lock-keywords locally.

(dired-font-lock-keywords): New variable.

(dired-mode): Set font-lock-keywords locally.

(mail-font-lock-keywords): New variable.

(mail-mode): Set font-lock-keywords locally.

(rmail-font-lock-keywords): New variable.

(rmail-variables): Set font-lock-keywords locally.

(rmail-summary-font-lock-keywords): New variable.

(rmail-summary-mode): Set font-lock-keywords locally.

(outline-font-lock-keywords): New variable.

(outline-mode): Set font-lock-keywords locally.

(change-log-mode): Set font-lock-keywords locally.

(change-log-font-lock-keywords): New variable.

(compilation-mode-font-lock-keywords): New variable.

(compilation-mode): Use kill-all-local-variables.
Set font-lock-keywords locally.

(sh-font-lock-keywords): Default to nil.

(check_writable, check_executable): Test HAVE_EACCESS.

(eaccess): Check for it.

(HAVE_EACCESS): Add #undef.

(HAVE_MKTIME): Add #undef.

Patch to handle old Convex systems (without uname).

(Lisp_Void, VOIDP): Deleted.

(Fboundp, Ffboundp, find_symbol_value, Fset, Fdefault_boundp, Fdefault_value):
Don't check for Lisp_Void; nothing ever creates that type.

(Fbyte_code): Delete case Lisp_Void.

(mark_object): Delete case Lisp_Void.

(Flsh, Fadd1, Fsub1, Flognot): Don't use XFASTINT when negative.

(Fabs): Don't use XFASTINT when negative.

(Fset, default_value, Fset_default, Fkill_local_variable): Access
buffer_local_flags as Lisp_Object, not int.

(defvar_per_buffer): Access buffer_local_flags as Lisp_Object, not int.
Give XSETBUFFER_OBJFWD an integer offset, not a pointer.

(init_buffer_once): Don't use XSETFASTINT when negative.
(reset_buffer_local_variables, Fbuffer_local_variables): Access
buffer_local_flags as Lisp_Object, not int.

(Fload, load_unwind): Store stream pointer as a cons of two integers,
obviating the need for Lisp_Internal_Stream datatype.

(Lisp_Internal_Stream, XSETINTERNALSTREAM, INTERNALSTREAMP): Deleted.

(mark_object): Delete case Lisp_Internal_Stream.

(read1): New argument for returning out-of-band data, obviating the need for
Lisp_Internal datatype.
(read0, read1, read_list): Use that new calling sequence.

(Lisp_Internal, XSETINTERNAL, INTERNALP): Deleted.

(query-replace): Add missing quote.

Assign copyright to FSF, and change comments to reflect that type-break
is now part of GNU Emacs.

* man.el (Man-notify, Man-current-page, Man-page-list,
Man-filter-list, Man-original-frame, Man-arguments,
Man-fontify-manpage-flag, Man-sections-alist, Man-refpages-alist,
Man-uses-untabify-flag, Man-page-mode-string, Man-sed-script):
Added defvar's to keep the compiler quiet.
(Man-getpage-in-background): Start buffer name with "*Man ".
instead of "*man " to avoid conflict with "*mail*".
(Man-match-substring): Defsubst moved before first call.
(Man-build-page-list, Man-strip-page-headers, Man-unindent): Use
defun instead of defsubst, for code clarity purpose.

(x_set_icon_type): Remove period from error message.

(x_icon_type): New function.

(rmail-summary-goto-msg): Get rmail-total-messages from the rmail buffer.

(make_hdr): Undo June 16 change.

Delete the error when no window system.

(sendnews, postnews): Use defalias.

(command-line): Load disp-table explicitly.

(add-log-current-defun): Handle Perl specially.

(Ffile_regular_p): New function.
(syms_of_fileio): defsubr it.

(read-envvar-name): Special meaning for MUSTMATCH
neither t nor nil.
(setenv): Use that new case, when clearing a var.

(texinfo-format-scan): Accept @^, @", @?, @!, @-.

(goto-line): Call prefix-numeric-value.

(Finteractive): Doc fix.

(single_keymap_panes, Fx_popup_menu): Don't use XFASTINT as an lvalue.

(construct_mouse_click): Don't use XFASTINT as an lvalue.

(Fx_popup_menu, Fx_popup_dialog): Use new accessor macros instead of calling
XSET directly.

(x_new_focus_frame, construct_mouse_click, construct_menu_click,
note_mouse_highlight, XTmouse_position, x_scroll_bar_create,
x_scroll_bar_set_handle, x_scroll_bar_move, XTset_vertical_scroll_bar,
XTredeem_scroll_bar, x_scroll_bar_handle_click, x_scroll_bar_note_movement,
x_scroll_bar_report_motion, XTread_socket, x_make_frame_visible): Use new
accessor macros instead of calling XSET directly.

(input_signal_count): New variable.
(XTread_socket): Increment it.
(x_make_frame_visible): Exit final loop when XTread_sockets has run.

(widget_id_tick): Move definition into conditional.
(syms_of_xmenu): Conditionalize initialization of widget_id_tick.

(last_menu_bar_item_end): Var deleted.
(this_menu_bar_item_beg, this_menu_bar_item_end): Vars deleted.
(other_menu_bar_item_p, unread_menu_bar_button)
(check_mouse_other_menu_bar): Functions deleted.
(last_event_timestamp, Vdouble_click_time, Vmouse_depressed): Decls deleted.
(xmenu_show): XMENU_FOO conditional and its contets deleted.

(validate_region): Swap using temp Lisp_Object, not int.

(read_process_output): Don't use XFASTINT as an lvalue.

(Fmodify_syntax_entry): Don't use XFASTINT as an lvalue.

(Fself_insert_command, Fnewline): Don't use XFASTINT as an lvalue.

(validate_interval_range): Don't use XFASTINT as an lvalue.

(try_window_id): Don't use XFASTINT as an lvalue.

(x_set_menu_bar_lines_1): Don't use XFASTINT as an lvalue.

(XFASTINT): Changed to non-lvalue syntax, to ensure that callers will use
XSETFASTINT instead.

(Fx_open_connection): Don't use XFASTINT as an lvalue.

(compute_char_face): Don't use XFASTINT as an lvalue.

(redisplay, mark_window_display_accurate, redisplay_window, try_window,
try_window_id, display_text_line, display_menu_bar, decode_mode_spec,
init_xdisp): Don't use XFASTINT as an lvalue.

(make_window, Fset_window_hscroll, Fset_window_start, set_window_height,
set_window_width, Fset_window_buffer, Fselect_window, temp_output_buffer_show,
make_dummy_parent, Fsplit_window, change_window_height, window_scroll,
Fscroll_left, Fscroll_right, Frecenter, Fmove_to_window_line,
Fset_window_configuration, save_window_save, Fcurrent_window_configuration,
init_window_once): Don't use XFASTINT as an lvalue.

(create_process): Don't use XFASTINT as an lvalue.

(record_delete, record_first_change): Don't use XFASTINT as an lvalue.

(Fnext_property_change, property_change_between_p,
Fnext_single_property_change, Fprevious_property_change,
Fprevious_single_property_change, copy_text_properties): Don't use XFASTINT as
an lvalue.

(Fcopy_syntax_table, Fmodify_syntax_entry, scan_lists, init_syntax_once):
Don't use XFASTINT as an lvalue.

(skip_chars, Fmatch_data, Fstore_match_data): Don't use XFASTINT as an lvalue.

(make_process, list_processes_1, create_process, Faccept_process_output,
wait_reading_process_input, read_process_output, send_process,
sigchld_handler): Don't use XFASTINT as an lvalue.

(printchar): Don't use XFASTINT as an lvalue.

(read_minibuf, get_minibuffer, read_minibuf_unwind, Fread_from_minibuffer,
Ftry_completion, Fall_completions, Fcompleting_read, Fminibuffer_prompt_width,
syms_of_minibuf): Don't use XFASTINT as an lvalue.

(Fmarker_position): Don't use XFASTINT as an lvalue.

(Fend_kbd_macro, Fexecute_kbd_macro): Don't use XFASTINT as an lvalue.

(read_filtered_event, init_obarray): Don't use XFASTINT as an lvalue.

(synkey, access_keymap, store_in_keymap, Faccessible_keymaps,
Fkey_description, ascii_sequence_p, Fwhere_is_internal, describe_vector):
Don't use XFASTINT as an lvalue.

(read_char, make_lispy_event, make_lispy_movement, parse_modifiers,
apply_modifiers, modify_event_symbol, menu_bar_one_keymap, read_key_sequence,
Fexecute_extended_command, Frecursion_depth, Fcurrent_input_mode,
syms_of_keyboard): Don't use XFASTINT as an lvalue.

(Fcurrent_column, Findent_to, Fcurrent_indentation, Fmove_to_column,
compute_motion, Fcompute_motion, vmotion): Don't use XFASTINT as an lvalue.

(make_frame, Fframe_parameters, Fselected_frame, syms_of_frame): Don't use
XFASTINT as an lvalue.

(Flength, concat, mapcar1): Don't use XFASTINT as an lvalue.

(Finsert_file_contents, Fwrite_region, Fdo_auto_save, Fset_buffer_auto_saved):
Don't use XFASTINT as an lvalue.

(Feval, Ffuncall, funcall_lambda, Fbacktrace): Don't use XFASTINT as an
lvalue.

(Fstring_to_char, Fpoint, Fbufsize, Fpoint_min, Fpoint_max, Ffollowing_char,
Fprevious_char, Fchar_after, Ftranslate_region, Fnarrow_to_region,
save_restriction_save): Don't use XFASTINT as an lvalue.