basetype_parse double_parse ensure_end_input p_cbrace p_cbracket p_comma p_cparen p_obrace p_obracket p_oparen p_whitespace period_parse periodset_parse tbox_parse temporal_parse timestamp_parse timestampset_parse tinstant_parse

p_oparen() bool p_oparen ( char **  str ) Input an opening parenthesis from the buffer.