Each instance of this class represents one element whose start
tag has been written but whose end tag is pending. The
Sox class maintains a stack of these instances in order
to insure start-end tag matching. The intended functions below
are formalized versions of the interface defined in Section 4.3, “The
Elt class: An element in
# - - - - - c l a s s E l t class Elt(object): '''Represents a partially built XML element. Exports: Elt(sox, tag): [ (sox is the containing Sox instance) and (tag is an xml-name) -> return a new Elt instance with those values ] .sox: [ as passed to constructor ] .tag: [ as passed to constructor ] .end(): [ if self is the top of sox's stack -> sox := sox with its stack popped else -> raise SoxError ] .__enter__(): [ I ] .__exit__(): [ same as .end() ] '''