Change mbbisearch to return the character range
authorJohn Naylor <john.naylor@postgresql.org>
Fri, 20 Aug 2021 15:10:17 +0000 (11:10 -0400)
committerJohn Naylor <john.naylor@postgresql.org>
Wed, 25 Aug 2021 17:08:11 +0000 (13:08 -0400)
commit78ab944cd4b9977732becd9d0bc83223b88af9a2
tree465e9d0774be9df806ea03640f5637bbea9eefb3
parenteb0d0d2c7300c9c5c22b35975c11265aa4becc84
Change mbbisearch to return the character range

Add a width field to mbinterval and have mbbisearch return a
pointer to the found range rather than just bool for success.
A future commit will add another width besides zero, and this
will allow that to use the same search.

Reviewed by Jacob Champion
Discussion: https://www.postgresql.org/message-id/CAFBsxsGOCpzV7c-f3a8ADsA1n4uZ%3D8puCctQp%2Bx7W0vgkv%3Dw%2Bg%40mail.gmail.com
src/common/unicode/generate-unicode_width_table.pl
src/common/wchar.c
src/include/common/unicode_width_table.h