diff options
Diffstat (limited to 'src/pugixpath.cpp')
| -rw-r--r-- | src/pugixpath.cpp | 113 |
1 files changed, 27 insertions, 86 deletions
diff --git a/src/pugixpath.cpp b/src/pugixpath.cpp index 0059f78..60f65b8 100644 --- a/src/pugixpath.cpp +++ b/src/pugixpath.cpp @@ -93,9 +93,15 @@ namespace #endif
}
- bool starts_with(const string_t& s, const char_t* pattern)
+ bool starts_with(const char_t* string, const char_t* pattern)
{
- return s.compare(0, impl::strlen(pattern), pattern) == 0;
+ while (*pattern && *string == *pattern)
+ {
+ string++;
+ pattern++;
+ }
+
+ return *pattern == 0;
}
const char_t* find_char(const char_t* s, char_t c)
@@ -513,14 +519,6 @@ namespace }
};
- template <class T> struct greater
- {
- bool operator()(const T& lhs, const T& rhs) const
- {
- return lhs > rhs;
- }
- };
-
template <class T> struct less
{
bool operator()(const T& lhs, const T& rhs) const
@@ -529,14 +527,6 @@ namespace }
};
- template <class T> struct greater_equal
- {
- bool operator()(const T& lhs, const T& rhs) const
- {
- return lhs >= rhs;
- }
- };
-
template <class T> struct less_equal
{
bool operator()(const T& lhs, const T& rhs) const
@@ -1308,7 +1298,7 @@ namespace pugi template <class Cbool, class Cdouble, class Cstring> struct compare_eq
{
- static bool run(xpath_ast_node* lhs, xpath_ast_node* rhs, xpath_context& c)
+ static bool run(xpath_ast_node* lhs, xpath_ast_node* rhs, const xpath_context& c)
{
if (lhs->rettype() != xpath_type_node_set && rhs->rettype() != xpath_type_node_set)
{
@@ -1403,7 +1393,7 @@ namespace pugi template <class Cdouble> struct compare_rel
{
- static bool run(xpath_ast_node* lhs, xpath_ast_node* rhs, xpath_context& c)
+ static bool run(xpath_ast_node* lhs, xpath_ast_node* rhs, const xpath_context& c)
{
if (lhs->rettype() != xpath_type_node_set && rhs->rettype() != xpath_type_node_set)
return Cdouble()(lhs->eval_number(c), rhs->eval_number(c));
@@ -1504,7 +1494,7 @@ namespace pugi // There are no attribute nodes corresponding to attributes that declare namespaces
// That is, "xmlns:..." or "xmlns"
- if (impl::strequalrange(a.name(), PUGIXML_TEXT("xmlns"), 5) && (a.name()[5] == 0 || a.name()[5] == ':')) return;
+ if (starts_with(a.name(), PUGIXML_TEXT("xmlns")) && (a.name()[5] == 0 || a.name()[5] == ':')) return;
switch (m_test)
{
@@ -1518,7 +1508,7 @@ namespace pugi break;
case nodetest_all_in_namespace:
- if (impl::strequalrange(a.name(), m_contents, impl::strlen(m_contents)))
+ if (starts_with(a.name(), m_contents))
ns.push_back(xpath_node(a, parent));
break;
@@ -1567,7 +1557,7 @@ namespace pugi break;
case nodetest_all_in_namespace:
- if (n.type() == node_element && impl::strequalrange(n.name(), m_contents, impl::strlen(m_contents)))
+ if (n.type() == node_element && starts_with(n.name(), m_contents))
ns.push_back(n);
break;
@@ -1791,7 +1781,7 @@ namespace pugi }
}
- template <class T> void step_do(xpath_node_set& ns, xpath_context& c, T v)
+ template <class T> void step_do(xpath_node_set& ns, const xpath_context& c, T v)
{
const axis_t axis = T::axis;
@@ -1971,7 +1961,7 @@ namespace pugi m_right = value;
}
- bool eval_boolean(xpath_context& c)
+ bool eval_boolean(const xpath_context& c)
{
switch (m_type)
{
@@ -1993,16 +1983,16 @@ namespace pugi return compare_rel<less<double> >::run(m_left, m_right, c);
case ast_op_greater:
- return compare_rel<greater<double> >::run(m_left, m_right, c);
+ return compare_rel<less<double> >::run(m_right, m_left, c);
case ast_op_less_or_equal:
return compare_rel<less_equal<double> >::run(m_left, m_right, c);
case ast_op_greater_or_equal:
- return compare_rel<greater_equal<double> >::run(m_left, m_right, c);
+ return compare_rel<less_equal<double> >::run(m_right, m_left, c);
case ast_func_starts_with:
- return starts_with(m_left->eval_string(c), m_right->eval_string(c).c_str());
+ return starts_with(m_left->eval_string(c).c_str(), m_right->eval_string(c).c_str());
case ast_func_contains:
{
@@ -2073,7 +2063,7 @@ namespace pugi }
}
- double eval_number(xpath_context& c)
+ double eval_number(const xpath_context& c)
{
switch (m_type)
{
@@ -2171,7 +2161,7 @@ namespace pugi }
}
- string_t eval_string(xpath_context& c)
+ string_t eval_string(const xpath_context& c)
{
switch (m_type)
{
@@ -2373,7 +2363,7 @@ namespace pugi }
}
- xpath_node_set eval_node_set(xpath_context& c)
+ xpath_node_set eval_node_set(const xpath_context& c)
{
switch (m_type)
{
@@ -2393,67 +2383,18 @@ namespace pugi }
case ast_filter:
- {
- xpath_node_set set = m_left->eval_node_set(c);
- set.sort();
-
- xpath_context oc = c;
-
- size_t i = 0;
-
- xpath_node_set::iterator last = set.mut_begin();
-
- // remove_if... or well, sort of
- for (xpath_node_set::const_iterator it = set.begin(); it != set.end(); ++it, ++i)
- {
- c.n = *it;
- c.position = i + 1;
- c.size = set.size();
-
- if (m_right->rettype() == xpath_type_number)
- {
- if (m_right->eval_number(c) == i + 1)
- *last++ = *it;
- }
- else if (m_right->eval_boolean(c))
- *last++ = *it;
- }
-
- c = oc;
-
- set.truncate(last);
-
- return set;
- }
-
case ast_filter_posinv:
{
xpath_node_set set = m_left->eval_node_set(c);
-
- xpath_context oc = c;
-
- size_t i = 0;
-
- xpath_node_set::iterator last = set.mut_begin();
-
- // remove_if... or well, sort of
- for (xpath_node_set::const_iterator it = set.begin(); it != set.end(); ++it, ++i)
- {
- c.n = *it;
- c.position = i + 1;
- c.size = set.size();
-
- if (m_right->eval_boolean(c))
- *last++ = *it;
- }
-
- c = oc;
-
- set.truncate(last);
+
+ // either expression is a number or it contains position() call; sort by document order
+ if (m_type == ast_filter) set.sort();
+
+ apply_predicate(set, 0, m_right, c);
return set;
}
-
+
case ast_func_id:
return xpath_node_set();
|