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using Gee;
namespace Xmpp.Core {
public class NamespaceState {
private HashMap<string, string> uri_to_name = new HashMap<string, string> ();
private HashMap<string, string> name_to_uri = new HashMap<string, string> ();
public string current_ns_uri;
public NamespaceState () {
add_assoc(XMLNS_URI, "xmlns");
add_assoc("http://www.w3.org/XML/1998/namespace", "xml");
current_ns_uri = "http://www.w3.org/XML/1998/namespace";
}
public NamespaceState.for_stanza () {
this();
add_assoc("http://etherx.jabber.org/streams", "stream");
current_ns_uri = "jabber:client";
}
public NamespaceState.copy (NamespaceState old) {
foreach (string key in old.uri_to_name.keys) {
add_assoc(key, old.uri_to_name[key]);
}
set_current(old.current_ns_uri);
}
public NamespaceState.with_assoc (NamespaceState old, string ns_uri, string name) {
this.copy(old);
add_assoc(ns_uri, name);
}
public NamespaceState.with_current (NamespaceState old, string current_ns_uri) {
this.copy(old);
set_current(current_ns_uri);
}
public void add_assoc (string ns_uri, string name) {
name_to_uri[name] = ns_uri;
uri_to_name[ns_uri] = name;
}
public void set_current (string current_ns_uri) {
this.current_ns_uri = current_ns_uri;
}
public string find_name (string ns_uri) throws XmlError {
if (uri_to_name.has_key(ns_uri)) {
return uri_to_name[ns_uri];
}
throw new XmlError.NS_DICT_ERROR(@"NS URI $ns_uri not found.");
}
public string find_uri (string name) throws XmlError {
if (name_to_uri.has_key(name)) {
return name_to_uri[name];
}
throw new XmlError.NS_DICT_ERROR(@"NS name $name not found.");
}
public NamespaceState clone() {
return new NamespaceState.copy(this);
}
public string to_string () {
StringBuilder sb = new StringBuilder ();
sb.append ("NamespaceState{");
foreach (string key in uri_to_name.keys) {
sb.append(key);
sb.append_c('=');
sb.append(uri_to_name[key]);
sb.append_c(',');
}
sb.append("current=");
sb.append(current_ns_uri);
sb.append_c('}');
return sb.str;
}
}
}
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