XML::ESISParser






XML::ESISParser − Perl SAX parser using nsgmls


 use XML::ESISParser;

      $parser = XML::ESISParser‐>new( [OPTIONS] );
 $result = $parser‐>parse( [OPTIONS] );

      $result = $parser‐>parse($string);

"XML::ESISParser" is a Perl SAX parser using the ‘nsgmls’
command of James Clark’s SGML Parser (SP), a validating XML
and SGML parser.  This man page summarizes the specific
options, handlers, and properties supported by
"XML::ESISParser"; please refer to the Perl SAX standard in
‘"SAX.pod"’ for general usage information.

     "XML::ESISParser" defaults to parsing XML and has an
option for parsing SGML.

     ‘"nsgmls"’ source, and binaries for some platforms, is
available from <http://www.jclark.com/>.  ‘"nsgmls"’ is
included in both the SP and Jade packages.



new Creates a new parser object.  Default options for
    parsing, described below, are passed as key‐value pairs
    or as a single hash.  Options may be changed directly in
    the parser object unless stated otherwise.  Options
    passed to ‘"parse()"’ override the default options in
    the parser object for the duration of the parse.

The following options are supported by "XML::ESISParser":

      Handler          default handler to receive events
 DocumentHandler  handler to receive document events
 DTDHandler       handler to receive DTD events
 ErrorHandler     handler to receive error events
 Source           hash containing the input source for parsing
 IsSGML           the document to be parsed is in SGML

     If no handlers are provided then all events will be
silently ignored.

     If a single string argument is passed to the
‘"parse()"’ method, it is treated as if a ‘"Source"’ option
was given with a ‘"String"’ parameter.

     The ‘"Source"’ hash may contain the following
parameters:












                             ‐2‐


      ByteStream       The raw byte stream (file handle) containing the
                  document.
 String           A string containing the document.
 SystemId         The system identifier (URI) of the document.

     If more than one of ‘"ByteStream"’, ‘"String"’, or
‘"SystemId"’, then preference is given first to
‘"ByteStream"’, then ‘"String"’, then ‘"SystemId"’.

The following handlers and properties are supported by
"XML::ESISParser":

     DocumentHandler methods


start_document
    Receive notification of the beginning of a document.

    No properties defined.

end_document
    Receive notification of the end of a document.

    No properties defined.

start_element
    Receive notification of the beginning of an element.

     Name             The element type name.
     Attributes       A hash containing the attributes attached to the
                      element, if any.
     IncludedSubelement This element is an included subelement.
     Empty            This element is declared empty.

    The ‘"Attributes"’ hash contains only string values.
    The ‘"Empty"’ flag is not set for an element that merely
    has no content, it is set only if the DTD declares it
    empty.

    BETA: Attribute values currently do not expand SData
    entities into entity objects, they are still in the
    system data notation used by nsgmls (inside ‘⎪’).  A
    future version of XML::ESISParser will also convert
    other types of attributes into their respective objects,
    currently just their notation or entity names are given.

end_element
    Receive notification of the end of an element.

     Name             The element type name.

characters
    Receive notification of character data.










                             ‐3‐


     Data             The characters from the document.

record_end
    Receive notification of a record end sequence.  XML
    applications should convert this to a new−line.

processing_instruction
    Receive notification of a processing instruction.

     Target           The processing instruction target in XML.
     Data             The processing instruction data, if any.

internal_entity_ref
    Receive notification of a system data (SData) internal
    entity reference.

     Name             The name of the internal entity reference.

external_entity_ref
    Receive notification of a external entity reference.

     Name             The name of the external entity reference.

start_subdoc
    Receive notification of the start of a sub document.

     Name             The name of the external entity reference.

end_subdoc
    Receive notification of the end of a sub document.

     Name             The name of the external entity reference.

conforming
    Receive notification that the document just parsed
    conforms to it’s document type declaration (DTD).

    No properties defined.

     DTDHandler methods


external_entity_decl
    Receive notification of an external entity declaration.

     Name             The entity’s entity name.
     Type             The entity’s type (CDATA, NDATA, etc.)
     SystemId         The entity’s system identifier.
     PublicId         The entity’s public identifier, if any.
     GeneratedId      Generated system identifiers, if any.

internal_entity_decl
    Receive notification of an internal entity declaration.










                             ‐4‐


     Name             The entity’s entity name.
     Type             The entity’s type (CDATA, NDATA, etc.)
     Value            The entity’s character value.

notation_decl
    Receive notification of a notation declaration.

     Name             The notation’s name.
     SystemId         The notation’s system identifier.
     PublicId         The notation’s public identifier, if any.
     GeneratedId      Generated system identifiers, if any.

subdoc_entity_decl
    Receive notification of a subdocument entity
    declaration.

     Name             The entity’s entity name.
     SystemId         The entity’s system identifier.
     PublicId         The entity’s public identifier, if any.
     GeneratedId      Generated system identifiers, if any.

external_sgml_entity_decl
    Receive notification of an external SGML‐entity
    declaration.

     Name             The entity’s entity name.
     SystemId         The entity’s system identifier.
     PublicId         The entity’s public identifier, if any.
     GeneratedId      Generated system identifiers, if any.

Ken MacLeod, ken@bitsko.slc.ut.us

perl(1), PerlSAX.pod(3)

      Extensible Markup Language (XML) <http://www.w3c.org/XML/>
 SAX 1.0: The Simple API for XML <http://www.megginson.com/SAX/>
 SGML Parser (SP) <http://www.jclark.com/sp/>