bound_parse double_parse elem_parse ensure_end_input p_cbrace p_cbracket p_comma p_cparen p_obrace p_obracket p_oparen p_whitespace set_parse span_parse spanset_parse tbox_parse tcontseq_parse tdiscseq_parse temporal_basetype_parse temporal_parse timestamp_parse tinstant_parse tsequenceset_parse

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