Subject:Re: Document loading and unloading Author:Alberto Massari Date:12 Jan 2007 03:10 AM
as you guessed, it's implementation-dependent; however, the
requirement that every call to doc() must be "stable" (i.e. when
given the same argument, it must return the exact same node tree,
with the same identity) almost forces every implementation to keep
all of them in memory until processing ends.