From 9bc19368f2fe81fec271c57ac1583c6a9eb1d014 Mon Sep 17 00:00:00 2001
From: "arseny.kapoulkine"
 <arseny.kapoulkine@99668b35-9821-0410-8761-19e4c4f06640>
Date: Sun, 18 Jan 2009 11:18:35 +0000
Subject: Added find_child_by_attribute

git-svn-id: http://pugixml.googlecode.com/svn/trunk@107 99668b35-9821-0410-8761-19e4c4f06640
---
 src/pugixml.cpp | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 src/pugixml.hpp | 38 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 92 insertions(+)

diff --git a/src/pugixml.cpp b/src/pugixml.cpp
index ccaec6a..06bd0ba 100644
--- a/src/pugixml.cpp
+++ b/src/pugixml.cpp
@@ -2411,6 +2411,60 @@ namespace pugi
         n._root->destroy();
 	}
 
+	xml_node xml_node::find_child_by_attribute(const char* name, const char* attr_name, const char* attr_value)
+	{
+		if (empty()) return xml_node();
+		
+		for (xml_node_struct* i = _root->first_child; i; i = i->next_sibling)
+			if (i->name && !strcmp(name, i->name))
+			{
+				for (xml_attribute_struct* a = i->first_attribute; a; a = a->next_attribute)
+					if (!strcmp(attr_name, a->name) && !strcmp(attr_value, a->value))
+						return xml_node(i);
+			}
+
+		return xml_node();
+	}
+
+	xml_node xml_node::find_child_by_attribute_w(const char* name, const char* attr_name, const char* attr_value)
+	{
+		if (empty()) return xml_node();
+		
+		for (xml_node_struct* i = _root->first_child; i; i = i->next_sibling)
+			if (i->name && !impl::strcmpwild(name, i->name))
+			{
+				for (xml_attribute_struct* a = i->first_attribute; a; a = a->next_attribute)
+					if (!impl::strcmpwild(attr_name, a->name) && !impl::strcmpwild(attr_value, a->value))
+						return xml_node(i);
+			}
+
+		return xml_node();
+	}
+
+	xml_node xml_node::find_child_by_attribute(const char* attr_name, const char* attr_value)
+	{
+		if (empty()) return xml_node();
+		
+		for (xml_node_struct* i = _root->first_child; i; i = i->next_sibling)
+			for (xml_attribute_struct* a = i->first_attribute; a; a = a->next_attribute)
+				if (!strcmp(attr_name, a->name) && !strcmp(attr_value, a->value))
+					return xml_node(i);
+
+		return xml_node();
+	}
+
+	xml_node xml_node::find_child_by_attribute_w(const char* attr_name, const char* attr_value)
+	{
+		if (empty()) return xml_node();
+		
+		for (xml_node_struct* i = _root->first_child; i; i = i->next_sibling)
+			for (xml_attribute_struct* a = i->first_attribute; a; a = a->next_attribute)
+				if (!impl::strcmpwild(attr_name, a->name) && !impl::strcmpwild(attr_value, a->value))
+					return xml_node(i);
+
+		return xml_node();
+	}
+
 #ifndef PUGIXML_NO_STL
 	std::string xml_node::path(char delimiter) const
 	{
diff --git a/src/pugixml.hpp b/src/pugixml.hpp
index 2b014c9..3e6aa3d 100644
--- a/src/pugixml.hpp
+++ b/src/pugixml.hpp
@@ -1096,6 +1096,44 @@ namespace pugi
 		 */
 		template <typename Predicate> xml_node find_node(Predicate pred) const;
 
+		/**
+		 * Find child node with the specified name that has specified attribute
+		 *
+		 * \param name - child node name
+		 * \param attr_name - attribute name of child node
+		 * \param attr_value - attribute value of child node
+		 * \return first matching child node, or empty node
+		 */
+		xml_node find_child_by_attribute(const char* name, const char* attr_name, const char* attr_value);
+
+		/**
+		 * Find child node with the specified name that has specified attribute (use pattern matching for node name and attribute name/value)
+		 *
+		 * \param name - pattern for child node name
+		 * \param attr_name - pattern for attribute name of child node
+		 * \param attr_value - pattern for attribute value of child node
+		 * \return first matching child node, or empty node
+		 */
+		xml_node find_child_by_attribute_w(const char* name, const char* attr_name, const char* attr_value);
+
+		/**
+		 * Find child node that has specified attribute
+		 *
+		 * \param attr_name - attribute name of child node
+		 * \param attr_value - attribute value of child node
+		 * \return first matching child node, or empty node
+		 */
+		xml_node find_child_by_attribute(const char* attr_name, const char* attr_value);
+
+		/**
+		 * Find child node that has specified attribute (use pattern matching for attribute name/value)
+		 *
+		 * \param attr_name - pattern for attribute name of child node
+		 * \param attr_value - pattern for attribute value of child node
+		 * \return first matching child node, or empty node
+		 */
+		xml_node find_child_by_attribute_w(const char* attr_name, const char* attr_value);
+
 	#ifndef PUGIXML_NO_STL
 		/**
 		 * Get the absolute node path from root as a text string.
-- 
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