Interleave In RNC
问题 I have source with three p with different attribute values, I tried to make arbitrary order of elements along with one mandatory element p class='paragraph1'. That is any number of paragraph1, paragraph2 and pharagraph3 in any order but there must be at least one paragraph1. Below I tried the interleave option in RNC, but I failed with an error "the element "p" can occur in more than one operand of "interleave"" This is because the same element declared more than one time. But is this