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=item pedantic_parser

/parser, html, reader/

pedantic error reporting; possible values are 0 and 1


=item no_blanks

/parser, html, reader/

remove blank nodes; possible values are 0 and 1


=item no_defdtd

/html/

do not add a default DOCTYPE; possible values are 0 and 1

the default is (0) to add a DTD when the input html lacks one


=item expand_xinclude or xinclude

/parser, reader/

Implement XInclude substitution; possible values are 0 and 1

Expands XInclude tags immediately while parsing the document. Note that the
parser will use the URI resolvers installed via C<<<<<< XML::LibXML::InputCallback >>>>>> to parse the included document (if any).


=item no_xinclude_nodes

/parser, reader/

do not generate XINCLUDE START/END nodes; possible values are 0 and 1


=item no_network

/parser, html, reader/

Forbid network access; possible values are 0 and 1

If set to true, all attempts to fetch non-local resources (such as DTD or
external entities) will fail (unless custom callbacks are defined).

It may be necessary to use the flag C<<<<<< recover >>>>>> for processing documents requiring such resources while networking is off.


=item clean_namespaces

/parser, reader/

remove redundant namespaces declarations during parsing; possible values are 0
and 1.


=item no_cdata

/parser, html, reader/

merge CDATA as text nodes; possible values are 0 and 1


=item no_basefix

/parser, reader/

not fixup XINCLUDE xml#base URIS; possible values are 0 and 1


=item huge

/parser, html, reader/

relax any hardcoded limit from the parser; possible values are 0 and 1. Unless
specified, XML::LibXML sets this option to 0.

Note: the default value for this option was changed to protect against denial
of service through entity expansion attacks. Before enabling the option ensure
you have taken alternative measures to protect your application against this
type of attack.


=item gdome

/parser/

THIS OPTION IS EXPERIMENTAL!

Although quite powerful, XML::LibXML's DOM implementation is incomplete with
respect to the DOM level 2 or level 3 specifications. XML::GDOME is based on
libxml2 as well, and provides a rather complete DOM implementation by wrapping
libgdome. This flag allows you to make use of XML::LibXML's full parser options
and XML::GDOME's DOM implementation at the same time.

To make use of this function, one has to install libgdome and configure
XML::LibXML to use this library. For this you need to rebuild XML::LibXML!

Note: this feature was not seriously tested in recent XML::LibXML releases.



=back

For compatibility with XML::LibXML versions prior to 1.70, the following
methods are also supported for querying and setting the corresponding parser
options (if called without arguments, the methods return the current value of
the corresponding parser options; with an argument sets the option to a given
value):



  $parser->validation();
  $parser->recover();
  $parser->pedantic_parser();
  $parser->line_numbers();
  $parser->load_ext_dtd();