impl xs models impl dtd models CMNode impl dtd models CMStateSet impl xs XSParticleDecl xscmuniop cmnode xscmuniop type cmnode childnode type type xsparticledecl.particle_zero_or_one type xsparticledecl.particle_zero_or_more type xsparticledecl.particle_one_or_more fchild childnode cmnode getchild fchild isnullable type xsparticledecl.particle_one_or_more fchild.isnullable calcfirstpos cmstateset toset.setto fchild.firstpos calclastpos cmstateset toset.setto fchild.lastpos cmnode fchild