size; just modify the argument, which is no longer const *.
Various other minor cleanups, mostly to avoid the need for casts.
(extract_field): Renamed from ADD_FIELD, as it's now a function.
(struct field.beg): Now char *, not unsigned char const *. All
uses changed. It shouldn't be const since xmemcoll writes on its
arguments.
(extract_field): Likewise, for 2nd arg.
(keycmp): Remove now-unnecessary cast of xmemcoll args.
(is_blank): New function, to avoid need to cast arg to unsigned char.
(extract_field): Use it.
(xfields): Rewrite pretty much from scratch.
(hard_LC_COLLATE): Now bool, not int.
(get_line, getseq, add_field_list): Now returns bool, not int.
(decode_field_spec, add_field_list): Return true on success (not
false), for consistency with the rest of the code. All uses changed.
(tab): Now char, not unsigned char. This wasn't 100% necessary
but is slightly cleaner.
(prjoin): Hoist (tab ? tab : ' ') expression, to help the compiler.
(empty_filler): Now const *.
(make_blank): Remove; wasn't needed. Remove all calls.
(main): Don't set uni_blank.nfields; zero is fine.
Jim Meyering
f646cade60