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

- p -

• parent : svn_repos_node_t
• password : svn_auth_cred_simple_t, svn_auth_cred_ssl_client_cert_pw_t
• patch : svn_version_t
• path : svn_client_commit_item2_t, svn_client_commit_item3_t, svn_client_commit_item_t, svn_client_copy_source_t, svn_client_diff_summarize_t, svn_fs_path_change3_t, svn_location_segment_t, svn_lock_t, svn_repos_notify_t, svn_wc_conflict_description_t
• path_in_repos : svn_wc_conflict_version_t
• path_or_url : svn_prop_inherited_item_t
• peg_rev : svn_wc_conflict_version_t
• peg_revision : svn_client_copy_source_t, svn_wc_external_item2_t
• pool : svn_error_t, svn_stringbuf_t
• post_commit_err : svn_commit_info_t
• prejfile : svn_wc_entry_t
• present_props : svn_wc_entry_t
• pristine_prop_status : svn_wc_status2_t
• pristine_text_status : svn_wc_status2_t
• progress_baton : svn_client_ctx_t, svn_ra_callbacks2_t
• progress_func : svn_client_ctx_t, svn_ra_callbacks2_t
• prop_changed : svn_client_diff_summarize_t
• prop_hash : svn_client_proplist_item_t, svn_prop_inherited_item_t
• prop_mod : svn_fs_path_change2_t, svn_fs_path_change3_t, svn_fs_path_change_t, svn_repos_node_t
• prop_patches : svn_patch_t
• prop_reject_abspath : svn_wc_conflict_description2_t
• prop_status : svn_client_status_t, svn_wc_status2_t, svn_wc_status3_t, svn_wc_status_t
• prop_time : svn_wc_entry_t
• prop_value_base : svn_wc_conflict_description2_t
• prop_value_incoming_new : svn_wc_conflict_description2_t
• prop_value_incoming_old : svn_wc_conflict_description2_t
• prop_value_working : svn_wc_conflict_description2_t
• property_name : svn_wc_conflict_description2_t, svn_wc_conflict_description_t
• props_changed : svn_wc_diff_callbacks_t
• props_modified : svn_log_changed_path2_t
• push_wc_prop : svn_ra_callbacks2_t