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.\" ========================================================================
.\"
.IX Title "XML::ESISParser 3"
.TH XML::ESISParser 3 "2003-10-21" "perl v5.26.3" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
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.SH "NAME"
XML::ESISParser \- Perl SAX parser using nsgmls
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\& use XML::ESISParser;
\&
\& $parser = XML::ESISParser\->new( [OPTIONS] );
\& $result = $parser\->parse( [OPTIONS] );
\&
\& $result = $parser\->parse($string);
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
\&\f(CW\*(C`XML::ESISParser\*(C'\fR is a Perl \s-1SAX\s0 parser using the `nsgmls' command of
James Clark's \s-1SGML\s0 Parser (\s-1SP\s0), a validating \s-1XML\s0 and \s-1SGML\s0 parser.
This man page summarizes the specific options, handlers, and
properties supported by \f(CW\*(C`XML::ESISParser\*(C'\fR; please refer to the Perl
\&\s-1SAX\s0 standard in `\f(CW\*(C`SAX.pod\*(C'\fR' for general usage information.
.PP
\&\f(CW\*(C`XML::ESISParser\*(C'\fR defaults to parsing \s-1XML\s0 and has an option for
parsing \s-1SGML.\s0
.PP
`\f(CW\*(C`nsgmls\*(C'\fR' source, and binaries for some platforms, is available from
<http://www.jclark.com/>.  `\f(CW\*(C`nsgmls\*(C'\fR' is included in both the \s-1SP\s0 and
Jade packages.
.SH "METHODS"
.IX Header "METHODS"
.IP "new" 4
.IX Item "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 `\f(CW\*(C`parse()\*(C'\fR' override the default options in the
parser object for the duration of the parse.
.SH "OPTIONS"
.IX Header "OPTIONS"
The following options are supported by \f(CW\*(C`XML::ESISParser\*(C'\fR:
.PP
.Vb 6
\& 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
.Ve
.PP
If no handlers are provided then all events will be silently ignored.
.PP
If a single string argument is passed to the `\f(CW\*(C`parse()\*(C'\fR' method, it
is treated as if a `\f(CW\*(C`Source\*(C'\fR' option was given with a `\f(CW\*(C`String\*(C'\fR'
parameter.
.PP
The `\f(CW\*(C`Source\*(C'\fR' hash may contain the following parameters:
.PP
.Vb 4
\& ByteStream       The raw byte stream (file handle) containing the
\&                  document.
\& String           A string containing the document.
\& SystemId         The system identifier (URI) of the document.
.Ve
.PP
If more than one of `\f(CW\*(C`ByteStream\*(C'\fR', `\f(CW\*(C`String\*(C'\fR', or `\f(CW\*(C`SystemId\*(C'\fR',
then preference is given first to `\f(CW\*(C`ByteStream\*(C'\fR', then `\f(CW\*(C`String\*(C'\fR',
then `\f(CW\*(C`SystemId\*(C'\fR'.
.SH "HANDLERS"
.IX Header "HANDLERS"
The following handlers and properties are supported by
\&\f(CW\*(C`XML::ESISParser\*(C'\fR:
.SS "DocumentHandler methods"
.IX Subsection "DocumentHandler methods"
.IP "start_document" 4
.IX Item "start_document"
Receive notification of the beginning of a document.
.Sp
No properties defined.
.IP "end_document" 4
.IX Item "end_document"
Receive notification of the end of a document.
.Sp
No properties defined.
.IP "start_element" 4
.IX Item "start_element"
Receive notification of the beginning of an element.
.Sp
.Vb 5
\& 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.
.Ve
.Sp
The `\f(CW\*(C`Attributes\*(C'\fR' hash contains only string values.  The `\f(CW\*(C`Empty\*(C'\fR'
flag is not set for an element that merely has no content, it is set
only if the \s-1DTD\s0 declares it empty.
.Sp
\&\s-1BETA:\s0 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.
.IP "end_element" 4
.IX Item "end_element"
Receive notification of the end of an element.
.Sp
.Vb 1
\& Name             The element type name.
.Ve
.IP "characters" 4
.IX Item "characters"
Receive notification of character data.
.Sp
.Vb 1
\& Data             The characters from the document.
.Ve
.IP "record_end" 4
.IX Item "record_end"
Receive notification of a record end sequence.  \s-1XML\s0 applications
should convert this to a new-line.
.IP "processing_instruction" 4
.IX Item "processing_instruction"
Receive notification of a processing instruction.
.Sp
.Vb 2
\& Target           The processing instruction target in XML.
\& Data             The processing instruction data, if any.
.Ve
.IP "internal_entity_ref" 4
.IX Item "internal_entity_ref"
Receive notification of a system data (SData) internal entity
reference.
.Sp
.Vb 1
\& Name             The name of the internal entity reference.
.Ve
.IP "external_entity_ref" 4
.IX Item "external_entity_ref"
Receive notification of a external entity reference.
.Sp
.Vb 1
\& Name             The name of the external entity reference.
.Ve
.IP "start_subdoc" 4
.IX Item "start_subdoc"
Receive notification of the start of a sub document.
.Sp
.Vb 1
\& Name             The name of the external entity reference.
.Ve
.IP "end_subdoc" 4
.IX Item "end_subdoc"
Receive notification of the end of a sub document.
.Sp
.Vb 1
\& Name             The name of the external entity reference.
.Ve
.IP "conforming" 4
.IX Item "conforming"
Receive notification that the document just parsed conforms to it's
document type declaration (\s-1DTD\s0).
.Sp
No properties defined.
.SS "DTDHandler methods"
.IX Subsection "DTDHandler methods"
.IP "external_entity_decl" 4
.IX Item "external_entity_decl"
Receive notification of an external entity declaration.
.Sp
.Vb 5
\& Name             The entity\*(Aqs entity name.
\& Type             The entity\*(Aqs type (CDATA, NDATA, etc.)
\& SystemId         The entity\*(Aqs system identifier.
\& PublicId         The entity\*(Aqs public identifier, if any.
\& GeneratedId      Generated system identifiers, if any.
.Ve
.IP "internal_entity_decl" 4
.IX Item "internal_entity_decl"
Receive notification of an internal entity declaration.
.Sp
.Vb 3
\& Name             The entity\*(Aqs entity name.
\& Type             The entity\*(Aqs type (CDATA, NDATA, etc.)
\& Value            The entity\*(Aqs character value.
.Ve
.IP "notation_decl" 4
.IX Item "notation_decl"
Receive notification of a notation declaration.
.Sp
.Vb 4
\& Name             The notation\*(Aqs name.
\& SystemId         The notation\*(Aqs system identifier.
\& PublicId         The notation\*(Aqs public identifier, if any.
\& GeneratedId      Generated system identifiers, if any.
.Ve
.IP "subdoc_entity_decl" 4
.IX Item "subdoc_entity_decl"
Receive notification of a subdocument entity declaration.
.Sp
.Vb 4
\& Name             The entity\*(Aqs entity name.
\& SystemId         The entity\*(Aqs system identifier.
\& PublicId         The entity\*(Aqs public identifier, if any.
\& GeneratedId      Generated system identifiers, if any.
.Ve
.IP "external_sgml_entity_decl" 4
.IX Item "external_sgml_entity_decl"
Receive notification of an external SGML-entity declaration.
.Sp
.Vb 4
\& Name             The entity\*(Aqs entity name.
\& SystemId         The entity\*(Aqs system identifier.
\& PublicId         The entity\*(Aqs public identifier, if any.
\& GeneratedId      Generated system identifiers, if any.
.Ve
.SH "AUTHOR"
.IX Header "AUTHOR"
Ken MacLeod, ken@bitsko.slc.ut.us
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fBperl\fR\|(1), \fBPerlSAX.pod\fR\|(3)
.PP
.Vb 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/>
.Ve