docs: Added range-based for documentation and sample

git-svn-id: http://pugixml.googlecode.com/svn/trunk@904 99668b35-9821-0410-8761-19e4c4f06640

docs/manual.qbk

@@ -928,6 +928,24 @@ This is an example of using these functions ([@samples/traverse_base.cpp]):
 
 [endsect] [/contents]
 
+[section:rangefor Range-based for-loop support]
+
+[#xml_node::children][#xml_node::attributes]
+If your C++ compiler supports range-based for-loop (this is a C++11 feature, at the time of writing it's supported by Microsoft Visual Studio 11 Beta, GCC 4.6 and Clang 3.0), you can use it to enumerate nodes/attributes. Additional helpers are provided to support this; note that they are also compatible with [@http://www.boost.org/libs/foreach/ Boost Foreach], and possibly other pre-C++11 foreach facilities.
+
+    ``/implementation-defined type/`` xml_node::children() const;
+    ``/implementation-defined type/`` xml_node::children(const char_t* name) const;
+    ``/implementation-defined type/`` xml_node::attributes() const;
+
+`children` function allows you to enumerate all child nodes; `children` function with `name` argument allows you to enumerate all child nodes with a specific name; `attributes` function allows you to enumerate all attributes of the node. Note that you can also use node object itself in a range-based for construct, which is equivalent to using `children()`.
+
+This is an example of using these functions ([@samples/traverse_rangefor.cpp]):
+
+[import samples/traverse_rangefor.cpp]
+[code_traverse_rangefor]
+
+[endsect] [/rangefor]
+
 [section:iterators Traversing node/attribute lists via iterators]
 
 [#xml_node_iterator][#xml_attribute_iterator][#xml_node::begin][#xml_node::end][#xml_node::attributes_begin][#xml_node::attributes_end]
@@ -2133,6 +2151,11 @@ Classes:
     * `xml_attribute `[link xml_node::last_attribute last_attribute]`() const;`
     [lbr]
 
+    * /implementation-defined type/ [link xml_node::children children]`() const;`
+    * /implementation-defined type/ [link xml_node::children children]`(const char_t* name) const;`
+    * /implementation-defined type/ [link xml_node::attributes attributes]`() const;`
+    [lbr]
+
     * `xml_node `[link xml_node::child child]`(const char_t* name) const;`
     * `xml_attribute `[link xml_node::attribute attribute]`(const char_t* name) const;`
     * `xml_node `[link xml_node::next_sibling_name next_sibling]`(const char_t* name) const;`

docs/samples/traverse_rangefor.cpp

@@ -0,0 +1,32 @@
+#include "pugixml.hpp"
+
+#include <iostream>
+
+int main()
+{
+    pugi::xml_document doc;
+    if (!doc.load_file("xgconsole.xml")) return -1;
+
+    pugi::xml_node tools = doc.child("Profile").child("Tools");
+
+    //[code_traverse_rangefor
+    for (pugi::xml_node tool: tools.children("Tool"))
+    {
+        std::cout << "Tool:";
+
+        for (pugi::xml_attribute attr: tool.attributes())
+        {
+            std::cout << " " << attr.name() << "=" << attr.value();
+        }
+
+        for (pugi::xml_node child: tool.children())
+        {
+            std::cout << ", child " << child.name();
+        }
+
+        std::cout << std::endl;
+    }
+    //]
+}
+
+// vim:et