Add wildcard support for node names. Allows selecting of all child nodes with a specific namespace (See issue #4).

README

@@ -96,5 +96,7 @@
  The namespace name specified in the functions above must either match the
  namespace you expect a node/attr to have, or you can specify a wildcard "*".
  This makes node searches easier in case you do not care what namespace name
- there is or if there is one at all.
+ there is or if there is one at all. Node and attribute names as well, may
+ be supplied as the wildcard "*". This allows us to fetch all child nodes for
+ a given namespace, regardless of their names.
 

node.go

@@ -196,10 +196,15 @@ func (this *Node) Ab(namespace, name string) bool {
 // Returns true if this node has the specified attribute. False otherwise.
 func (this *Node) HasAttr(namespace, name string) bool {
 	for _, v := range this.Attributes {
-		if (namespace == "*" || namespace == v.Name.Space) && name == v.Name.Local {
+		if namespace != "*" && namespace != v.Name.Space {
+			continue
+		}
+
+		if name == "*" || name == v.Name.Local {
 			return true
 		}
 	}
+
 	return false
 }
 
@@ -209,9 +214,7 @@ func (this *Node) SelectNode(namespace, name string) *Node {
 }
 
 func rec_SelectNode(cn *Node, namespace, name string) *Node {
-	// Allow wildcard for namespace names. Meaning we will match any namespace
-	// name with a matching local name.
-	if (namespace == "*" || cn.Name.Space == namespace) && cn.Name.Local == name {
+	if (namespace == "*" || cn.Name.Space == namespace) && (name == "*" || cn.Name.Local == name) {
 		return cn
 	}
 
@@ -221,6 +224,7 @@ func rec_SelectNode(cn *Node, namespace, name string) *Node {
 			return tn
 		}
 	}
+
 	return nil
 }
 
@@ -232,9 +236,7 @@ func (this *Node) SelectNodes(namespace, name string) []*Node {
 }
 
 func rec_SelectNodes(cn *Node, namespace, name string, list *[]*Node) {
-	// Allow wildcard for namespace names. Meaning we will match any namespace
-	// name with a matching local name.
-	if (namespace == "*" || cn.Name.Space == namespace) && cn.Name.Local == name {
+	if (namespace == "*" || cn.Name.Space == namespace) && (name == "*" || cn.Name.Local == name) {
 		*list = append(*list, cn)
 		return
 	}

test1.xml

@@ -1 +0,0 @@
-<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="0.91"><channel><title>WriteTheWeb</title><link>http://writetheweb.com</link><description>News for web users that write back</description><language>en-us</language><copyright>Copyright 2000, WriteTheWeb team.</copyright><managingEditor>editor@writetheweb.com</managingEditor><webMaster>webmaster@writetheweb.com</webMaster><image><title>WriteTheWeb</title><url>http://writetheweb.com/images/mynetscape88.gif</url><link>http://writetheweb.com</link><width>88</width><height>31</height><description>News for web users that write back</description></image><item><title>Giving the world a pluggable Gnutella</title><link>http://writetheweb.com/read.php?item=24</link><description>WorldOS is a framework on which to build programs that work like Freenet or Gnutella -allowing distributed applications using peer-to-peer routing.</description></item><item><title>Syndication discussions hot up</title><link>http://writetheweb.com/read.php?item=23</link><description>After a period of dormancy, the Syndication mailing list has become active again, with contributions from leaders in traditional media and Web syndication.</description></item><item><title>Personal web server integrates file sharing and messaging</title><link>http://writetheweb.com/read.php?item=22</link><description>The Magi Project is an innovative project to create a combined personal web server and messaging system that enables the sharing and synchronization of information across desktop, laptop and palmtop devices.</description></item><item><title>Syndication and Metadata</title><link>http://writetheweb.com/read.php?item=21</link><description>RSS is probably the best known metadata format around. RDF is probably one of the least understood. In this essay, published on my O'Reilly Network weblog, I argue that the next generation of RSS should be based on RDF.</description></item><item><title>UK bloggers get organised</title><link>http://writetheweb.com/read.php?item=20</link><description>Looks like the weblogs scene is gathering pace beyond the shores of the US. There's now a UK-specific page on weblogs.com, and a mailing list at egroups.</description></item><item><title>Yournamehere.com more important than anything</title><link>http://writetheweb.com/read.php?item=19</link><description>Whatever you're publishing on the web, your site name is the most valuable asset you have, according to Carl Steadman.</description></item></channel></rss>

test2.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0"?>
+<xml>
+ <books>
+  <book>
+   <xdc:author>moo</xdc:author>
+   <xdc:price>123</xdc:price>
+   <xdc:pages>321</xdc:pages>
+   <xdc:date>1/1/2011</xdc:date>
+  </book>
+  <book>
+   <xdc:author>moo</xdc:author>
+   <xdc:price>123</xdc:price>
+   <xdc:pages>321</xdc:pages>
+   <xdc:date>1/1/2011</xdc:date>
+  </book>
+ </books>
+</xml>

xmlx_test.go

@@ -20,7 +20,23 @@ func TestLoadLocal(t *testing.T) {
 	}
 }
 
-func TestLoadRemote(t *testing.T) {
+func TestWildcard(t *testing.T) {
+	doc := New()
+
+	if err := doc.LoadFile("test2.xml"); err != nil {
+		t.Error(err.String())
+		return
+	}
+
+	list := doc.SelectNodes("xdc", "*")
+
+	if len(list) != 8 {
+		t.Errorf("Wrong number of child elements. Expected 4, got %d.", len(list))
+		return
+	}
+}
+
+func _TestLoadRemote(t *testing.T) {
 	doc := New()
 
 	if err := doc.LoadUri("http://blog.golang.org/feeds/posts/default"); err != nil {