Empty !

title is a title.

This is <? a PI ?>.

This is comment.

This is multiline comment.

This is tag now .

This is tag now.

This is an empty tag.

This is something strange.

Auto-closing:

Expanding:

An invalid tag: <hR>

A <p>block tag</p>.

An invalid </closing> tag.

A
tag.

An unclosed tag.

Some `element with | pipe symbol`

Some `element with | pipe symbol`

Some `element with | pipe symbol|`

underlined