HTML::ElementGlob is a managing object for multiple
HTML::Element(3) style elements. The children of the glob
element retain their original parental elements and have
no knowledge of the glob that manipulates them. All methods
that do not start with glob_ will be passed, sequentially, to
all elements contained within the glob element. Methods
starting with glob_ will operate on the glob itself, rather
than being passed to its foster children.
For example, $eglob->attr(size => 3) will invoke attr(size => 3) on
all children contained by $eglob. $eglob->glob_attr(size => 3), on
the other hand, will set the attr attribute on the glob itself.
The tag type passed to HTML::Element::Glob is largely
irrrelevant as far as how methods are passed to children. However,
if you choose to invoke $eglob->as_HTML(), you might want to pick
a tag that would sensibly contain the globbed children for debugging
or display purposes.
The glob_* methods that operate on the glob itself are limited
to those available in an HTML::Element(3). All other methods get
passed blindly to the globbed children, which can be enhanced elements
with arbitrary methods, such as HTML::ElementSuper(3).
Element globs can contain other element globs. In such cases, the
plain methods will cascade down to the leaf children. glob_* methods,
of course, will not be propogated to children globs. You will
have to rely on glob_content() to access those glob children and
access their glob_* methods directly.