wkd: Fix client issue with leading or trailing spaces in user-ids.
* common/recsel.c (recsel_parse_expr): Add flag -t. * common/stringhelp.c: Remove assert.h. (strtokenize): Factor code out to do_strtokenize. (strtokenize_nt): New. (do_strtokenize): Add arg trim to support the strtokenize_nt. * common/t-stringhelp.c (test_strtokenize_nt): New test cases. * tools/wks-util.c (wks_list_key): Use strtokenize_nt and the recsel flag -t.
This fixes a bug with user ids with leading spaces because:
wks-client lists all mail addresses from the key and matches them to the
requested mail address.
If there are several user-ids all with the same mail address
wks-client picks one of them and then extracts exactly that user id.
However, here it does not match by the mail address but by the full
user-id so that we can be sure that there will be only one user-id in
the final key.
The filter built expression unfortunately strips leading blanks but
requires a verbatim match. Thus it won't find the user id again and
The new -t flag and a non-trimming strtokenize solves the problem.
- Signed-off-by: Werner Koch <email@example.com>