HTMLParser Objects
------------------
In addition to tag methods, the `HTMLParser' class provides some
additional methods and instance variables for use within tag methods.
`formatter'
This is the formatter instance associated with the parser.
`nofill'
Boolean flag which should be true when whitespace should not be
collapsed, or false when it should be. In general, this should
only be true when character data is to be treated as
"preformatted" text, as within a `<PRE>' element. The default
value is false. This affects the operation of `handle_data()' and
`save_end()'.
`anchor_bgn(href, name, type)'
This method is called at the start of an anchor region. The
arguments correspond to the attributes of the `<A>' tag with the
same names. The default implementation maintains a list of
hyperlinks (defined by the `HREF' attribute for `<A>' tags) within
the document. The list of hyperlinks is available as the data
attribute `anchorlist'.
`anchor_end()'
This method is called at the end of an anchor region. The default
implementation adds a textual footnote marker using an index into
the list of hyperlinks created by `anchor_bgn()'.
`handle_image(source, alt[, ismap[, align[, width[, height]]]])'
This method is called to handle images. The default implementation
simply passes the ALT value to the `handle_data()' method.
`save_bgn()'
Begins saving character data in a buffer instead of sending it to
the formatter object. Retrieve the stored data via `save_end()'.
Use of the `save_bgn()' / `save_end()' pair may not be nested.
`save_end()'
Ends buffering character data and returns all data saved since the
preceding call to `save_bgn()'. If the `nofill' flag is false,
whitespace is collapsed to single spaces. A call to this method
without a preceding call to `save_bgn()' will raise a `TypeError'
exception.