Что такое код xslt_set_sax_handlers

Что такое код xslt_set_sax_handlers

(только 4.0.3 — 4.0.6)

xslt_set_sax_handler — устанавливает SAX-обработчики для XSLT-процессора.

Описание

void xslt_set_sax_handler (resource xh, array handlers)

Устанавливает SAX-обработчики в данном дескрипторе ресурса xh . SAX-обработчики должны быть двухмерным массивом в формате (все эелеменыт верхнего уровня являются необязательными):

array( [document] => array( start document handler, end document handler ), [element] => array( start element handler, end element handler ), [namespace] => array( start namespace handler, end namespace handler ), [comment] => comment handler, [pi] => processing instruction handler, [character] => character data handler )

[PHP] xslt_set_sax_handlers

Could you help me: I really need to use the follow function:
xslt_set_sax_handlers

I’ve not found documentation on this function.

I use PHP version 4.1.1. Does this function work or not in this
version?

Thank you in advance,
Sincerely,
Alexey

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  • 1 response
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Erik Price at Mar 27, 2002 at 3:49 pm

On Wednesday, March 27, 2002, at 04:11 AM, Alexey N.Kolomoets wrote:

Could you help me: I really need to use the follow function:
xslt_set_sax_handlers

I’ve not found documentation on this function.

I use PHP version 4.1.1. Does this function work or not in this
version?

According to the man page, this function was only available to PHP 4.0.3
to 4.0.6:
http://www.php.net/manual/en/function.xslt-set-sax-handler.php

If you have XSLT enabled in your PHP distribution (you would have had to
compile it with —enable-xslt and —with-xslt-sablot as ./configure
parameters), why not just use xslt_process() ? This function does just
about everything you need done in an XSLT transformation. What are you
trying to do?

Что такое код xslt_set_sax_handlers

(только 4.0.3 — 4.0.6)

xslt_set_sax_handler — устанавливает SAX-обработчики для XSLT-процессора.

Описание

void xslt_set_sax_handler (resource xh, array handlers)

Устанавливает SAX-обработчики в данном дескрипторе ресурса xh . SAX-обработчики должны быть двухмерным массивом в формате (все элементы верхнего уровня являются необязательными):


Назад Оглавление Вперёд
xslt_set_log Вверх xslt_set_sax_handlers

Материалы, которые находятся на этой страничке, любезно предоставлены Игорем Ивановым

Что такое код xslt_set_sax_handlers

xslt_set_sax_handler — Set SAX handlers for a XSLT processor

Description

bool xslt_set_sax_handler (resource xh, array handlers)

This function is EXPERIMENTAL . That means, that the behaviour of this function, this function name, in concreto ANYTHING documented here can change in a future release of PHP WITHOUT NOTICE. Be warned, and use this function at your own risk.

Set SAX handlers on the resource handle given by xh .

Что такое код xslt_set_sax_handlers

xslt_set_sax_handler — Set SAX handlers for a XSLT processor

Description

bool xslt_set_sax_handler (resource xh, array handlers)

Warning

This function is EXPERIMENTAL . That means, that the behaviour of this function, this function name, in concreto ANYTHING documented here can change in a future release of PHP WITHOUT NOTICE. Be warned, and use this function at your own risk.

Set SAX handlers on the resource handle given by xh .

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xslt_set_sax_handlers

Set the SAX handlers to be called when the XML document gets processed ( PHP 4 >= 4.0.6 )

xslt_set_sax_handlers() registers the SAX handlers for the document, given a XSLT processor resource.

Using xslt_set_sax_handlers() doesn’t look very different than running a SAX parser like xml_parse() on the result of an xslt_process() transformation.

Parameters

handlers should be an array in the following format:

«document» => array(
«start_doc» ,
«end_doc» ),

«element» => array(
«start_element» ,
«end_element» ),

«namespace» => array(
«start_namespace» ,
«end_namespace» ),

Where the functions follow the syntax described for the scheme handler functions.

The given array does not need to contain all of the different sax handler elements (although it can), but it only needs to conform to «handler» => «function» format described above.

Each of the individual SAX handler functions are in the format below:

Return Values

No value is returned.

Examples

Example 2668. xslt_set_sax_handlers() Example

// From ohlesbeauxjours at yahoo dot fr
// Here’s a simple example that applies strtoupper() on
// the content of every tag and then displays the
// resulting XML tree:

// Handlers :
function start_document ()
<
// start reading the document
>

function end_document ()
<
// end reading the document
>

function start_element ( $parser , $name , $attributes )
<
global $result , $tag ;
$result .= » . $name . «>» ;
$tag = $name ;
>

function end_element ( $parser , $name )
<
global $result ;
$result .= » . $name . «>» ;
>

function characters ( $parser , $data )
<
global $result , $tag ;
if ( $tag == «auteur» ) <
$data = strtoupper ( $data );
>
$result .= $data ;
>

// Transformation :
$xh = xslt_create ();
$handlers = array( «document» => array( «start_document» , «end_document» ),
«element» => array( «start_element» , «end_element» ),
«character» => «characters» );

xslt_set_sax_handlers ( $xh , $handlers );
xslt_process ( $xh , ‘arg:/_xml’ , ‘arg:/_xsl’ , NULL , array( «/_xml» => $xml , «/_xsl» => $xsl ));
xslt_free ( $xh );
?>

You can also use xslt_set_object() if you want to implement your handlers in an object.

Example 2669. Object oriented handler

// This is the object oriented version of the previous example
class data_sax_handler <

var $buffer , $tag , $attrs ;

function data_sax_handler ( $xml , $xsl )
<
// our xslt resource
$this -> _xh = xslt_create ();

xslt_set_object ( $this -> _xs , $this );

// configure sax handlers
$handlers = array(
«document» => array( ‘start_document’ , ‘end_document’ ),
«element» => array( ‘start_element’ , ‘end_element’ ),
«character» => ‘characters’
);

xslt_set_sax_handlers ( $this -> _xh , $handlers );

xslt_process ( $this -> _xh , ‘arg:/_xml’ , ‘arg:/_xsl’ , NULL , array( «/_xml» => $xml , «/_xsl» => $xsl ));
xslt_free ( $this -> _xh );

function start_document ()
<
// start reading the document
>

function end_document () <
// complete reading the document
>

function start_element ( $parser , $name , $attributes ) <
$this -> tag = $name ;
$this -> buffer .= » . $name . «>» ;
$this -> attrs = $attributes ;
>

function end_element ( $parser , $name )
<
$this -> tag = » ;
$this -> buffer .= » . $name . «>» ;
>

function characters ( $parser , $data )
<
if ( $this -> tag == ‘auteur’ ) <
$data = strtoupper ( $data );
>
$this -> buffer .= $data ;
>

function get_buffer () <
return $this -> buffer ;
>

$exec = new data_sax_handler ( $xml , $xsl );

19.12. xml.sax.handler — Base >

New in version 2.0.

This is the main callback interface in SAX, and the one most important to applications. The order of events in this interface mirrors the order of the information in the document.

Handle DTD events.

This interface specifies only those DTD events required for basic parsing (unparsed entities and attributes).

Basic interface for resolving entities. If you create an object implementing this interface, then register the object with your Parser, the parser will call the method in your object to resolve all external entities.

Interface used by the parser to present error and warning messages to the application. The methods of this object control whether errors are immediately converted to exceptions or are handled in some other way.

In addition to these > xml.sax.handler provides symbolic constants for the feature and property names.

List of all features.

List of all known property names.

19.12.1. ContentHandler Objects¶

Users are expected to sub > ContentHandler to support their application. The following methods are called by the parser on the appropriate events in the input document:

ContentHandler. setDocumentLocator ( locator ) В¶

Called by the parser to give the application a locator for locating the origin of document events.

SAX parsers are strongly encouraged (though not absolutely required) to supply a locator: if it does so, it must supply the locator to the application by invoking this method before invoking any of the other methods in the DocumentHandler interface.

The locator allows the application to determine the end position of any document-related event, even if the parser is not reporting an error. Typically, the application will use this information for reporting its own errors (such as character content that does not match an application’s business rules). The information returned by the locator is probably not sufficient for use with a search engine.

Note that the locator will return correct information only during the invocation of the events in this interface. The application should not attempt to use it at any other time.

Receive notification of the beginning of a document.

The SAX parser will invoke this method only once, before any other methods in this interface or in DTDHandler (except for setDocumentLocator() ).

Receive notification of the end of a document.

The SAX parser will invoke this method only once, and it will be the last method invoked during the parse. The parser shall not invoke this method until it has either abandoned parsing (because of an unrecoverable error) or reached the end of input.

ContentHandler. startPrefixMapping ( prefix, uri ) В¶

Begin the scope of a prefix-URI Namespace mapping.

The information from this event is not necessary for normal Namespace processing: the SAX XML reader will automatically replace prefixes for element and attribute names when the feature_namespaces feature is enabled (the default).

There are cases, however, when applications need to use prefixes in character data or in attribute values, where they cannot safely be expanded automatically; the startPrefixMapping() and endPrefixMapping() events supply the information to the application to expand prefixes in those contexts itself, if necessary.

Note that startPrefixMapping() and endPrefixMapping() events are not guaranteed to be properly nested relative to each-other: all startPrefixMapping() events will occur before the corresponding startElement() event, and all endPrefixMapping() events will occur after the corresponding endElement() event, but their order is not guaranteed.

ContentHandler. endPrefixMapping ( prefix ) В¶

End the scope of a prefix-URI mapping.

See startPrefixMapping() for details. This event will always occur after the corresponding endElement() event, but the order of endPrefixMapping() events is not otherwise guaranteed.

ContentHandler. startElement ( name, attrs ) В¶

Signals the start of an element in non-namespace mode.

The name parameter contains the raw XML 1.0 name of the element type as a string and the attrs parameter holds an object of the Attributes interface (see The Attributes Interface ) containing the attributes of the element. The object passed as attrs may be re-used by the parser; holding on to a reference to it is not a reliable way to keep a copy of the attributes. To keep a copy of the attributes, use the copy() method of the attrs object.

ContentHandler. endElement ( name ) В¶

Signals the end of an element in non-namespace mode.

The name parameter contains the name of the element type, just as with the startElement() event.

ContentHandler. startElementNS ( name, qname, attrs ) В¶

Signals the start of an element in namespace mode.

The name parameter contains the name of the element type as a (uri, localname) tuple, the qname parameter contains the raw XML 1.0 name used in the source document, and the attrs parameter holds an instance of the AttributesNS interface (see The AttributesNS Interface ) containing the attributes of the element. If no namespace is associated with the element, the uri component of name will be None . The object passed as attrs may be re-used by the parser; holding on to a reference to it is not a reliable way to keep a copy of the attributes. To keep a copy of the attributes, use the copy() method of the attrs object.

Parsers may set the qname parameter to None , unless the feature_namespace_prefixes feature is activated.

ContentHandler. endElementNS ( name, qname ) В¶

Signals the end of an element in namespace mode.

The name parameter contains the name of the element type, just as with the startElementNS() method, likewise the qname parameter.

ContentHandler. characters ( content ) В¶

Receive notification of character data.

The Parser will call this method to report each chunk of character data. SAX parsers may return all contiguous character data in a single chunk, or they may split it into several chunks; however, all of the characters in any single event must come from the same external entity so that the Locator provides useful information.

content may be a Unicode string or a byte string; the expat reader module produces always Unicode strings.

The earlier SAX 1 interface provided by the Python XML Special Interest Group used a more Java-like interface for this method. Since most parsers used from Python did not take advantage of the older interface, the simpler signature was chosen to replace it. To convert old code to the new interface, use content instead of slicing content with the old offset and length parameters.

Receive notification of ignorable whitespace in element content.

Validating Parsers must use this method to report each chunk of ignorable whitespace (see the W3C XML 1.0 recommendation, section 2.10): non-validating parsers may also use this method if they are capable of parsing and using content models.

SAX parsers may return all contiguous whitespace in a single chunk, or they may split it into several chunks; however, all of the characters in any single event must come from the same external entity, so that the Locator provides useful information.

ContentHandler. processingInstruction ( target, data ) В¶

Receive notification of a processing instruction.

The Parser will invoke this method once for each processing instruction found: note that processing instructions may occur before or after the main document element.

A SAX parser should never report an XML declaration (XML 1.0, section 2.8) or a text declaration (XML 1.0, section 4.3.1) using this method.

ContentHandler. skippedEntity ( name ) В¶

Receive notification of a skipped entity.

The Parser will invoke this method once for each entity skipped. Non-val > feature_external_ges and the feature_external_pes properties.

19.12.2. DTDHandler Objects¶

DTDHandler instances provide the following methods:

DTDHandler. notationDecl ( name, public >) В¶

Handle a notation declaration event.

DTDHandler. unparsedEntityDecl ( name, public >) В¶

Handle an unparsed entity declaration event.

19.12.3. EntityResolver Objects¶

Resolve the system identifier of an entity and return either the system identifier to read from as a string, or an InputSource to read from. The default implementation returns systemId.

19.12.4. ErrorHandler Objects¶

Objects with this interface are used to receive error and warning information from the XMLReader . If you create an object that implements this interface, then register the object with your XMLReader , the parser will call the methods in your object to report all warnings and errors. There are three levels of errors available: warnings, (possibly) recoverable errors, and unrecoverable errors. All methods take a SAXParseException as the only parameter. Errors and warnings may be converted to an exception by raising the passed-in exception object.

ErrorHandler. error ( exception ) В¶

Called when the parser encounters a recoverable error. If this method does not raise an exception, parsing may continue, but further document information should not be expected by the application. Allowing the parser to continue may allow additional errors to be discovered in the input document.

ErrorHandler. fatalError ( exception ) В¶

Called when the parser encounters an error it cannot recover from; parsing is expected to terminate when this method returns.

ErrorHandler. warning ( exception ) В¶

Called when the parser presents minor warning information to the application. Parsing is expected to continue when this method returns, and document information will continue to be passed to the application. Raising an exception in this method will cause parsing to end.

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Что такое код xslt_set_sax_handlers

xslt_set_sax_handler — Set SAX handlers for a XSLT processor

Description

bool xslt_set_sax_handler (resource xh, array handlers)

Warning

This function is EXPERIMENTAL . That means, that the behaviour of this function, this function name, in concreto ANYTHING documented here can change in a future release of PHP WITHOUT NOTICE. Be warned, and use this function at your own risk.

Set SAX handlers on the resource handle given by xh .

Илон Маск рекомендует:  Объявление экспортируемых функций
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