fixed GH #1826: XPath query error

This commit is contained in:
Günter Obiltschnig 2017-08-11 19:13:02 +02:00
parent 85d0cfb9ed
commit e679ebe419
3 changed files with 68 additions and 14 deletions

View File

@ -64,6 +64,7 @@ protected:
static bool namesAreEqual(const Node* pNode1, const Node* pNode2, const NSMap* pNSMap);
static bool namesAreEqual(const Node* pNode, const XMLString& name, const NSMap* pNSMap);
static const XMLString WILDCARD;
private:
AbstractNode* _pFirstChild;

View File

@ -29,6 +29,9 @@ namespace Poco {
namespace XML {
const XMLString AbstractContainerNode::WILDCARD(toXMLString("*"));
AbstractContainerNode::AbstractContainerNode(Document* pOwnerDocument):
AbstractNode(pOwnerDocument),
_pFirstChild(0)
@ -320,7 +323,7 @@ Node* AbstractContainerNode::getNodeByPath(const XMLString& path) const
XMLString name;
while (it != path.end() && *it != '/' && *it != '@' && *it != '[') name += *it++;
if (it != path.end() && *it == '/') ++it;
if (name.empty()) name += '*';
if (name.empty()) name = WILDCARD;
AutoPtr<ElementsByTagNameList> pList = new ElementsByTagNameList(this, name);
unsigned long length = pList->length();
for (unsigned long i = 0; i < length; i++)
@ -353,8 +356,8 @@ Node* AbstractContainerNode::getNodeByPathNS(const XMLString& path, const NSMap&
bool nameOK = true;
if (name.empty())
{
namespaceURI += '*';
localName += '*';
namespaceURI = WILDCARD;
localName = WILDCARD;
}
else
{
@ -421,10 +424,11 @@ const Node* AbstractContainerNode::findNode(XMLString::const_iterator& it, const
#ifdef XML_UNICODE_WCHAR_T
std::string idx;
Poco::UnicodeConverter::convert(index, idx);
return findNode(it, end, findElement(Poco::NumberParser::parse(idx), pNode, pNSMap), pNSMap);
int i = Poco::NumberParser::parse(idx);
#else
return findNode(it, end, findElement(Poco::NumberParser::parse(index), pNode, pNSMap), pNSMap);
int i = Poco::NumberParser::parse(index);
#endif
return findNode(it, end, findElement(i, pNode, pNSMap), pNSMap);
}
}
else
@ -432,7 +436,17 @@ const Node* AbstractContainerNode::findNode(XMLString::const_iterator& it, const
while (it != end && *it == '/') ++it;
XMLString key;
while (it != end && *it != '/' && *it != '[') key += *it++;
return findNode(it, end, findElement(key, pNode, pNSMap), pNSMap);
XMLString::const_iterator itStart(it);
const Node* pFound = 0;
const Node* pElem = findElement(key, pNode->firstChild(), pNSMap);
while (!pFound && pElem)
{
pFound = findNode(it, end, pElem, pNSMap);
if (!pFound) pElem = findElement(key, pElem->nextSibling(), pNSMap);
it = itStart;
}
return pFound;
}
}
else return pNode;
@ -441,12 +455,11 @@ const Node* AbstractContainerNode::findNode(XMLString::const_iterator& it, const
const Node* AbstractContainerNode::findElement(const XMLString& name, const Node* pNode, const NSMap* pNSMap)
{
Node* pChild = pNode->firstChild();
while (pChild)
while (pNode)
{
if (pChild->nodeType() == Node::ELEMENT_NODE && namesAreEqual(pChild, name, pNSMap))
return pChild;
pChild = pChild->nextSibling();
if (pNode->nodeType() == Node::ELEMENT_NODE && namesAreEqual(pNode, name, pNSMap))
return pNode;
pNode = pNode->nextSibling();
}
return 0;
}
@ -542,15 +555,19 @@ bool AbstractContainerNode::namesAreEqual(const Node* pNode, const XMLString& na
{
XMLString namespaceURI;
XMLString localName;
if (pNSMap->processName(name, namespaceURI, localName, false))
if (name == WILDCARD)
{
return pNode->namespaceURI() == namespaceURI && pNode->localName() == localName;
return true;
}
else if (pNSMap->processName(name, namespaceURI, localName, false))
{
return (pNode->namespaceURI() == namespaceURI || namespaceURI == WILDCARD) && (pNode->localName() == localName || localName == WILDCARD);
}
else return false;
}
else
{
return pNode->nodeName() == name;
return pNode->nodeName() == name || name == WILDCARD;
}
}

View File

@ -628,6 +628,9 @@ void ElementTest::testNodeByPath()
</elemC>
<elemC attr1="value2"/>
</elem2>
<elem2>
<elemB attr1="value4"/>
</elem2>
</root>
*/
@ -643,6 +646,8 @@ void ElementTest::testNodeByPath()
AutoPtr<Element> pElem23 = pDoc->createElement("elemB");
AutoPtr<Element> pElem24 = pDoc->createElement("elemC");
AutoPtr<Element> pElem25 = pDoc->createElement("elemC");
AutoPtr<Element> pElem3 = pDoc->createElement("elem2");
AutoPtr<Element> pElem31 = pDoc->createElement("elemB");
pElem21->setAttribute("attr1", "value1");
pElem22->setAttribute("attr1", "value2");
@ -651,6 +656,8 @@ void ElementTest::testNodeByPath()
pElem24->setAttribute("attr1", "value1");
pElem25->setAttribute("attr1", "value2");
pElem31->setAttribute("attr1", "value4");
AutoPtr<Element> pElem241 = pDoc->createElement("elemC1");
AutoPtr<Element> pElem242 = pDoc->createElement("elemC2");
pElem241->setAttribute("attr1", "value1");
@ -664,9 +671,12 @@ void ElementTest::testNodeByPath()
pElem2->appendChild(pElem23);
pElem2->appendChild(pElem24);
pElem2->appendChild(pElem25);
pElem3->appendChild(pElem31);
pRoot->appendChild(pElem1);
pRoot->appendChild(pElem2);
pRoot->appendChild(pElem3);
pDoc->appendChild(pRoot);
@ -734,6 +744,9 @@ void ElementTest::testNodeByPath()
assert (pNode == pElem23);
pNode = pDoc->getNodeByPath("//elemB[@attr1='value4']");
assert (pNode == pElem31);
pNode = pDoc->getNodeByPath("//elemB[@attr1='value5']");
assert (pNode == 0);
pNode = pDoc->getNodeByPath("//[@attr1='value1']");
@ -741,6 +754,9 @@ void ElementTest::testNodeByPath()
pNode = pDoc->getNodeByPath("//[@attr1='value2']");
assert (pNode == pElem22);
pNode = pRoot->getNodeByPath("/elem2/*[@attr1='value2']");
assert (pNode == pElem22);
}
@ -762,6 +778,9 @@ void ElementTest::testNodeByPathNS()
</ns2:elemC>
<ns2:elemC ns2:attr1="value2" xmlns:ns2="urn:ns2"/>
</ns1:elem2>
<ns1:elem2>
<ns2:elemB ns2:attr1="value4" xmlns:ns2="urn:ns2"/>
</ns1:elem2>
</ns1:root>
*/
AutoPtr<Document> pDoc = new Document;
@ -776,10 +795,13 @@ void ElementTest::testNodeByPathNS()
AutoPtr<Element> pElem23 = pDoc->createElementNS("urn:ns2", "ns2:elemB");
AutoPtr<Element> pElem24 = pDoc->createElementNS("urn:ns2", "ns2:elemC");
AutoPtr<Element> pElem25 = pDoc->createElementNS("urn:ns2", "ns2:elemC");
AutoPtr<Element> pElem3 = pDoc->createElementNS("urn:ns1", "ns1:elem2");
AutoPtr<Element> pElem31 = pDoc->createElementNS("urn:ns2", "ns2:elemB");
pElem21->setAttributeNS("urn:ns2", "ns2:attr1", "value1");
pElem22->setAttributeNS("urn:ns2", "ns2:attr1", "value2");
pElem23->setAttributeNS("urn:ns2", "ns2:attr1", "value3");
pElem31->setAttributeNS("urn:ns2", "ns2:attr1", "value4");
pElem24->setAttributeNS("urn:ns2", "ns2:attr1", "value1");
pElem25->setAttributeNS("urn:ns2", "ns2:attr1", "value2");
@ -797,9 +819,11 @@ void ElementTest::testNodeByPathNS()
pElem2->appendChild(pElem23);
pElem2->appendChild(pElem24);
pElem2->appendChild(pElem25);
pElem3->appendChild(pElem31);
pRoot->appendChild(pElem1);
pRoot->appendChild(pElem2);
pRoot->appendChild(pElem3);
pDoc->appendChild(pRoot);
@ -874,6 +898,9 @@ void ElementTest::testNodeByPathNS()
assert (pNode == pElem23);
pNode = pDoc->getNodeByPathNS("//NS2:elemB[@NS2:attr1='value4']", nsMap);
assert (pNode == pElem31);
pNode = pDoc->getNodeByPathNS("//NS2:elemB[@NS2:attr1='value5']", nsMap);
assert (pNode == 0);
pNode = pDoc->getNodeByPathNS("//[@NS2:attr1='value1']", nsMap);
@ -881,6 +908,15 @@ void ElementTest::testNodeByPathNS()
pNode = pDoc->getNodeByPathNS("//[@NS2:attr1='value2']", nsMap);
assert (pNode == pElem22);
pNode = pRoot->getNodeByPathNS("/ns1:elem2/*[@NS2:attr1='value2']", nsMap);
assert (pNode == pElem22);
pNode = pRoot->getNodeByPathNS("/ns1:elem2/NS2:*[@NS2:attr1='value2']", nsMap);
assert (pNode == pElem22);
pNode = pRoot->getNodeByPathNS("/ns1:elem2/ns1:*[@NS2:attr1='value2']", nsMap);
assert (pNode == 0);
}