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

- a -

• abort_report : svn_ra_reporter2_t, svn_ra_reporter3_t, svn_ra_reporter_t
• absent : svn_wc_entry_t
• accepted_failures : svn_auth_cred_ssl_server_trust_t
• access : svn_wc_conflict_description_t
• action : svn_log_changed_path2_t, svn_log_changed_path_t, svn_repos_node_t, svn_repos_notify_t, svn_wc_conflict_description2_t, svn_wc_conflict_description_t
• action_code : svn_txdelta_op_t
• actual_kind : svn_wc_status3_t
• aliases : svn_opt_subcommand_desc2_t, svn_opt_subcommand_desc3_t, svn_opt_subcommand_desc_t
• apply_textdelta : svn_repos_parse_fns2_t, svn_repos_parse_fns3_t
• ascii_cert : svn_auth_ssl_server_cert_info_t
• auth_baton : svn_client_ctx_t, svn_ra_callbacks2_t
• author : svn_client_commit_info_t, svn_commit_info_t