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authorredmatrix <git@macgirvin.com>2016-05-10 17:26:44 -0700
committerredmatrix <git@macgirvin.com>2016-05-10 17:26:44 -0700
commit0b02a6d123b2014705998c94ddf3d460948d3eac (patch)
tree78ff2cab9944a4f5ab3f80ec93cbe1120de90bb2 /vendor/sabre/xml/lib/Element/XmlFragment.php
parent40b5b6e9d2da7ab65c8b4d38cdceac83a4d78deb (diff)
downloadvolse-hubzilla-0b02a6d123b2014705998c94ddf3d460948d3eac.tar.gz
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initial sabre upgrade (needs lots of work - to wit: authentication, redo the browser interface, and rework event export/import)
Diffstat (limited to 'vendor/sabre/xml/lib/Element/XmlFragment.php')
-rw-r--r--vendor/sabre/xml/lib/Element/XmlFragment.php147
1 files changed, 147 insertions, 0 deletions
diff --git a/vendor/sabre/xml/lib/Element/XmlFragment.php b/vendor/sabre/xml/lib/Element/XmlFragment.php
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+++ b/vendor/sabre/xml/lib/Element/XmlFragment.php
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+<?php
+
+namespace Sabre\Xml\Element;
+
+use Sabre\Xml\Reader;
+use Sabre\Xml\Writer;
+use Sabre\Xml\Element;
+
+/**
+ * The XmlFragment element allows you to extract a portion of your xml tree,
+ * and get a well-formed xml string.
+ *
+ * This goes a bit beyond `innerXml` and friends, as we'll also match all the
+ * correct namespaces.
+ *
+ * Please note that the XML fragment:
+ *
+ * 1. Will not have an <?xml declaration.
+ * 2. Or a DTD
+ * 3. It will have all the relevant xmlns attributes.
+ * 4. It may not have a root element.
+ */
+class XmlFragment implements Element {
+
+ protected $xml;
+
+ function __construct($xml) {
+
+ $this->xml = $xml;
+
+ }
+
+ function getXml() {
+
+ return $this->xml;
+
+ }
+
+ /**
+ * The xmlSerialize metod is called during xml writing.
+ *
+ * Use the $writer argument to write its own xml serialization.
+ *
+ * An important note: do _not_ create a parent element. Any element
+ * implementing XmlSerializble should only ever write what's considered
+ * its 'inner xml'.
+ *
+ * The parent of the current element is responsible for writing a
+ * containing element.
+ *
+ * This allows serializers to be re-used for different element names.
+ *
+ * If you are opening new elements, you must also close them again.
+ *
+ * @param Writer $writer
+ * @return void
+ */
+ function xmlSerialize(Writer $writer) {
+
+ $reader = new Reader();
+
+ // Wrapping the xml in a container, so root-less values can still be
+ // parsed.
+ $xml = <<<XML
+<?xml version="1.0"?>
+<xml-fragment xmlns="http://sabre.io/ns">{$this->getXml()}</xml-fragment>
+XML;
+
+ $reader->xml($xml);
+
+ while ($reader->read()) {
+
+ if ($reader->depth < 1) {
+ // Skipping the root node.
+ continue;
+ }
+
+ switch ($reader->nodeType) {
+
+ case Reader::ELEMENT :
+ $writer->startElement(
+ $reader->getClark()
+ );
+ $empty = $reader->isEmptyElement;
+ while ($reader->moveToNextAttribute()) {
+ switch ($reader->namespaceURI) {
+ case '' :
+ $writer->writeAttribute($reader->localName, $reader->value);
+ break;
+ case 'http://www.w3.org/2000/xmlns/' :
+ // Skip namespace declarations
+ break;
+ default :
+ $writer->writeAttribute($reader->getClark(), $reader->value);
+ break;
+ }
+ }
+ if ($empty) {
+ $writer->endElement();
+ }
+ break;
+ case Reader::CDATA :
+ case Reader::TEXT :
+ $writer->text(
+ $reader->value
+ );
+ break;
+ case Reader::END_ELEMENT :
+ $writer->endElement();
+ break;
+
+ }
+
+ }
+
+ }
+
+ /**
+ * The deserialize method is called during xml parsing.
+ *
+ * This method is called statictly, this is because in theory this method
+ * may be used as a type of constructor, or factory method.
+ *
+ * Often you want to return an instance of the current class, but you are
+ * free to return other data as well.
+ *
+ * You are responsible for advancing the reader to the next element. Not
+ * doing anything will result in a never-ending loop.
+ *
+ * If you just want to skip parsing for this element altogether, you can
+ * just call $reader->next();
+ *
+ * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
+ * the next element.
+ *
+ * @param Reader $reader
+ * @return mixed
+ */
+ static function xmlDeserialize(Reader $reader) {
+
+ $result = new self($reader->readInnerXml());
+ $reader->next();
+ return $result;
+
+ }
+
+}