Here is a list of all documented variables with links to the struct/union documentation for each field:

A

B

C

D

E

F

G

H

I

K

L

M

N

O

P

R

S

T

U

V

W

- u -

• u : svn_ra_svn_item_t
• URL : svn_client_info2_t, svn_info_t
• url : svn_client_commit_item2_t, svn_client_commit_item3_t, svn_client_commit_item_t, svn_wc_entry_t, svn_wc_external_item2_t, svn_wc_external_item_t, svn_wc_status2_t
• username : svn_auth_cred_simple_t, svn_auth_cred_username_t
• uuid : svn_wc_entry_t
• uuid_record : svn_repos_parse_fns2_t, svn_repos_parse_fns3_t, svn_repos_parse_fns_t