(Fdefine_abbrev): New arg SYSTEM-FLAG for a system abbrev.
(Fdefine_global_abbrev, Fdefine_mode_abbrev):
Update calls to Fdefine_abbrev.
(write_abbrev): Update for changed data format.
Don't list "system" abbrevs.
(Fexpand_abbrev): Update use count with new data format.
(describe_abbrev): Update for changed data format.
(Fdefine_abbrev_table): Handle the new SYSTEM-FLAG.
(Fdefine_key): Add error message for trying to bind [DEL], [RET], etc.
(exclude_keys): New variable.
(Flookup_key): Error message if key has wrong data type.
output_cursor and updated_area. Compare pixel coordinates with
window's cursor pixel coordinates.
(x_draw_glyphs, x_clear_end_of_line, show_mouse_face): Call
notice_overwritten_cursor with new arg list.
(show_mouse_face): Fix bug setting a row's mouse_face_p flag
unconditionally.
(line-move-to-column): New subroutine--smarter about advancing over
invisible parts of a line, or lines, but only as long as hpos grows.
(line-move-finish): New subroutine: repeatedly processes desired
column, intangibility, and fields.
(line-move): Use those subroutines.
When moving lines downward, skip invisible text first rather than last.
* etags.c (Perl_functions): Tag packages and use them in sub tags.
(get_tag): Return a pointer to the tag that is found.
general cleanup and streamlining
* etags.c (LOOKING_AT): Use !intoken instead of iswhite.
(F_takeprec): Renamed from takeprec. All callers changed.
(F_getit): Renamed from getit. All callers changed.
(nocase_tail): Renamed from tail. All callers changed.
(Ada_getit): Renamed from adagetit. All callers changed.
(L_getit): Simplified by using get_tag.
(Perl_functions, Postscript_functions, erlang_attribute): Use the
modified LOOKING_AT.
(notinname): Removed '[' and added ')' to the recognised chars.
(LOOKING_AT, get_tag, PHP_functions): Use notinname.
(Ada_getit, Ada_funcs, Python_functions, Scheme_functions):
Clarified, using strneq or notinname.
(L_isdef, L_isquote): Removed.
(Lisp_functions, L_getit): Clarified.
changes for standalone compilation
* etags.c: (P_): Renamed to __P for consistency with config.h.
[HAVE_CONFIG_H]: Let config.h deal with __P.
[__STDC__] [!HAVE_CONFIG_H]: Define PTR as in config.h.
[!__STDC__] [!HAVE_CONFIG_H]: Do not undefine static, because
gperf code needs it.
[HAVE_CONFIG_H] [!PTR]: Define PTR (for use with Xemacs).
[HAVE_CONFIG_H] [!__P]: Define __P (for use with Xemacs).
(xmalloc, xrealloc): Use PTR instead of long *.
(bool): Make it a define, not a typedef, for C++ compilers.
(pattern): Members renamed to avoid name clash in some C++ compilers.
(get_language_from_langname): Use const argument.
separated by mouse-movement. When tracking mouse, only record
first and last mouse-movement event in same window.
Don't record mouse-movement events in keyboard macros.
