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XPath: Restored document order sorting optimization (it's now automatic for nodes that were loaded and not significantly altered), minor traversal optimizations

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git-svn-id: http://pugixml.googlecode.com/svn/trunk@613 99668b35-9821-0410-8761-19e4c4f06640
This commit is contained in:
arseny.kapoulkine 2010-07-22 07:54:34 +00:00
parent 0363bccfc9
commit 93bb5dcb43
3 changed files with 44 additions and 43 deletions
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14
src/pugixml.cpp
View File

@ -3216,8 +3216,13 @@ namespace pugi
return (_attr && _attr->value) ? _attr->value : PUGIXML_TEXT("");
}
unsigned int xml_attribute::document_order() const
const void* xml_attribute::document_order() const
{
if (!_attr) return 0;
if ((_attr->header & xml_memory_page_name_allocated_mask) == 0) return _attr->name;
if ((_attr->header & xml_memory_page_value_allocated_mask) == 0) return _attr->value;
return 0;
}
@ -4014,8 +4019,13 @@ namespace pugi
return walker.end(arg_end);
}
unsigned int xml_node::document_order() const
const void* xml_node::document_order() const
{
if (!_root) return 0;
if (_root->name && (_root->header & xml_memory_page_name_allocated_mask) == 0) return _root->name;
if (_root->value && (_root->header & xml_memory_page_value_allocated_mask) == 0) return _root->value;
return 0;
}

6
src/pugixml.hpp
View File

@ -646,8 +646,7 @@ namespace pugi
bool as_bool() const;
/// \internal Document order or 0 if not set
/// \deprecated This function is deprecated
PUGIXML_DEPRECATED unsigned int document_order() const;
const void* document_order() const;
public:
/**
@ -1466,8 +1465,7 @@ namespace pugi
#endif
/// \internal Document order or 0 if not set
/// \deprecated This function is deprecated
PUGIXML_DEPRECATED unsigned int document_order() const;
const void* document_order() const;
/**
* Print subtree to writer

67
src/pugixpath.cpp
View File

@ -143,28 +143,22 @@ namespace
xml_node cur = n.first_child();
if (cur)
while (cur && cur != n)
{
do
if (cur.type() == node_pcdata || cur.type() == node_cdata)
result += cur.value();
if (cur.first_child())
cur = cur.first_child();
else if (cur.next_sibling())
cur = cur.next_sibling();
else
{
if (cur.type() == node_pcdata || cur.type() == node_cdata)
result += cur.value();
if (cur.first_child())
cur = cur.first_child();
else if (cur.next_sibling())
cur = cur.next_sibling();
else
{
// Borland C++ workaround
while (!cur.next_sibling() && cur != n && (bool)cur.parent())
cur = cur.parent();
if (cur != n)
cur = cur.next_sibling();
}
while (!cur.next_sibling() && cur != n)
cur = cur.parent();
if (cur != n) cur = cur.next_sibling();
}
while (cur && cur != n);
}
return result;
@ -228,6 +222,11 @@ namespace
{
xml_node ln = lhs.node(), rn = rhs.node();
const void* lo = lhs.attribute() ? lhs.attribute().document_order() : ln.document_order();
const void* ro = rhs.attribute() ? rhs.attribute().document_order() : rn.document_order();
if (lo && ro) return lo < ro;
if (lhs.attribute() && rhs.attribute())
{
if (lhs.parent() == rhs.parent())
@ -1642,27 +1641,21 @@ namespace pugi
xml_node cur = n.first_child();
if (cur)
while (cur && cur != n)
{
do
step_push(ns, cur);
if (cur.first_child())
cur = cur.first_child();
else if (cur.next_sibling())
cur = cur.next_sibling();
else
{
step_push(ns, cur);
if (cur.first_child())
cur = cur.first_child();
else if (cur.next_sibling())
cur = cur.next_sibling();
else
{
// Borland C++ workaround
while (!cur.next_sibling() && cur != n && (bool)cur.parent())
cur = cur.parent();
if (cur != n)
cur = cur.next_sibling();
}
while (!cur.next_sibling() && cur != n)
cur = cur.parent();
if (cur != n) cur = cur.next_sibling();
}
while (cur && cur != n);
}
break;