The SGML Specification Technical Corrigendum 2 allows the value NONE to be
specified for the parameters CAPACITY and QUANTITY of an SGML declaration. In both
cases, specifying NONE informs the SGML parser that no values are being supplied, and that it may use
values that it sees fit. In particular, an SGML parser that encounters NONE in these positions is not
required to support values greater than its default system declarations.
In the case of OmniMark, CAPACITY NONE sets all SGML capacities to 4294967295. When
QUANTITY NONE is specified,
NAMELEN, LITLEN, PILEN, and BSEQLEN are set to 32768,
NORMSEP is set to 0, and
4294967295.