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translation is more than one, compose it.

(bcopy, bcmp, REGEX_REALLOCATE, re_match_2_internal):
Use memcmp and memcpy instead of bcopy and bcmp.
(init_syntax_once): Use ISALNUM.
(PUSH_FAILURE_POINT, re_match_2_internal): Remove failure_id.
(REG_UNSET_VALUE): Remove.  Use NULL instead.
(REG_UNSET, re_match_2_internal): Use NULL.
(SET_HIGH_BOUND, MOVE_BUFFER_POINTER, ELSE_EXTEND_BUFFER_HIGH_BOUND):
New macros.
(EXTEND_BUFFER): Use them (to work with BOUNDED_POINTERS).
(GET_UNSIGNED_NUMBER): Don't use ISDIGIT.
(regex_compile): In handle_interval, return an error rather than try to
unfetch the interval if we can't find the closing brace.
Obey the RE_NO_GNU_OPS syntax bit.
(TOLOWER): New macro.
(regcomp): Use it.
(regexec): Allocate regs.start and regs.end as one block.

the update_begin and update_end calls here from update_frame_1.
(update_frame_1): Don't set display_completed here, don't call
update_begin/update_end.

of calling detect_input_pending.

instead of store_frame_param.

is not activated immediately if Emacs is already idle.  Some
existing code relies on this behaviour.

  If the background color has changed, re-make the shadow-gcs too.

last-command-event, last-command, and this-command.
(quail-start-conversion): Likewise.

buffer contains at least 2 characters.

on list-abbrevs.

desired window matrix hasn't been displayed, use the current row
instead.  Make sure that only those frame rows are updated for
which there is a corresponding enabled desired row.

(diff-mode-shared-map): Bind mouse-2.
(diff-imenu-generic-expression): New variable.
(diff-mode): Use it.

  Create overlays using the proper front/read-advance arguments.

(Finternal_merge_in_global_face): Use it instead of merge_face_vectors.