* common/recsel.c (recsel_select): Change processing of NULL values.
* common/t-recsel.c (run_test_2): Adjust for this change. Also a type
fix for s/"letter"/"letters"/.
--
The getval function may return NULL which indicates that there is no
useful value available. For example because the propertyname is not
defined for some external context (e.g. in gpg the packet type). This
also required to fix the test for boolean tests of a non existing
property name.
Reported-by: shniubobo at gnupg-users on 2025-04-18.
* common/recsel.c (struct recsel_expr_s): Add field lefta.
(recsel_parse_expr): Parse it.
(recsel_select): Implement selection.
--
This flags makes it for example easy to select keys last updated from
an ldap server:
gpg --list-filter 'select=origin=ks && -^ url =~ ldap' \
-k --with-key-origin
