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// gst-gapi-fixup.cs - xml alteration engine.
//
// Author: Mike Kestner <mkestner@speakeasy.net>
//
// Copyright (c) 2003 Mike Kestner
// Copyright (c) 2009 Sebastian Dröge
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of version 2 of the GNU General Public
// License as published by the Free Software Foundation.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// General Public License for more details.
//
// You should have received a copy of the GNU General Public
// License along with this program; if not, write to the
// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
// Boston, MA 02111-1307, USA.
namespace GtkSharp.Parsing {
using System;
using System.IO;
using System.Xml;
using System.Xml.XPath;
public class Fixup {
public static int Main (string[] args)
{
if (args.Length < 2) {
Console.WriteLine ("Usage: gst-gapi-fixup --metadata=<filename> --api=<filename> --symbols=<filename>");
return 0;
}
string api_filename = "";
XmlDocument api_doc = new XmlDocument ();
XmlDocument meta_doc = new XmlDocument ();
XmlDocument symbol_doc = new XmlDocument ();
foreach (string arg in args) {
if (arg.StartsWith("--metadata=")) {
string meta_filename = arg.Substring (11);
try {
Stream stream = File.OpenRead (meta_filename);
meta_doc.Load (stream);
stream.Close ();
} catch (XmlException e) {
Console.WriteLine ("Invalid meta file.");
Console.WriteLine (e);
return 1;
}
} else if (arg.StartsWith ("--api=")) {
api_filename = arg.Substring (6);
try {
Stream stream = File.OpenRead (api_filename);
api_doc.Load (stream);
stream.Close ();
} catch (XmlException e) {
Console.WriteLine ("Invalid api file.");
Console.WriteLine (e);
return 1;
}
} else if (arg.StartsWith ("--symbols=")) {
string symbol_filename = arg.Substring (10);
try {
Stream stream = File.OpenRead (symbol_filename);
symbol_doc.Load (stream);
stream.Close ();
} catch (XmlException e) {
Console.WriteLine ("Invalid api file.");
Console.WriteLine (e);
return 1;
}
} else {
Console.WriteLine ("Usage: gapi-fixup --metadata=<filename> --api=<filename>");
return 1;
}
}
XPathNavigator meta_nav = meta_doc.CreateNavigator ();
XPathNavigator api_nav = api_doc.CreateNavigator ();
XPathNodeIterator change_node_type_iter = meta_nav.Select ("/metadata/change-node-type");
while (change_node_type_iter.MoveNext ()) {
string path = change_node_type_iter.Current.GetAttribute ("path", "");
XPathNodeIterator api_iter = api_nav.Select (path);
bool matched = false;
while (api_iter.MoveNext ()) {
XmlElement node = ((IHasXmlNode)api_iter.Current).GetNode () as XmlElement;
XmlElement parent = node.ParentNode as XmlElement;
XmlElement new_node = api_doc.CreateElement (change_node_type_iter.Current.Value);
foreach (XmlNode child in node.ChildNodes)
new_node.AppendChild (child.Clone ());
foreach (XmlAttribute attribute in node.Attributes)
new_node.Attributes.Append ((XmlAttribute) attribute.Clone ());
parent.ReplaceChild (new_node, node);
matched = true;
}
if (!matched)
Console.WriteLine ("Warning: <change-node-type path=\"{0}\"/> matched no nodes", path);
}
XPathNodeIterator move_iter = meta_nav.Select ("/metadata/move-node");
while (move_iter.MoveNext ()) {
string path = move_iter.Current.GetAttribute ("path", "");
XPathExpression expr = api_nav.Compile (path);
string parent = move_iter.Current.Value;
XPathNodeIterator parent_iter = api_nav.Select (parent);
bool matched = false;
while (parent_iter.MoveNext ()) {
XmlNode parent_node = ((IHasXmlNode)parent_iter.Current).GetNode ();
XPathNodeIterator path_iter = parent_iter.Current.Clone ().Select (expr);
while (path_iter.MoveNext ()) {
XmlNode node = ((IHasXmlNode)path_iter.Current).GetNode ();
parent_node.AppendChild (node.Clone ());
node.ParentNode.RemoveChild (node);
}
matched = true;
}
if (!matched)
Console.WriteLine ("Warning: <move-node path=\"{0}\"/> matched no nodes", path);
}
XPathNodeIterator rmv_iter = meta_nav.Select ("/metadata/remove-node");
while (rmv_iter.MoveNext ()) {
string path = rmv_iter.Current.GetAttribute ("path", "");
XPathNodeIterator api_iter = api_nav.Select (path);
bool matched = false;
while (api_iter.MoveNext ()) {
XmlElement api_node = ((IHasXmlNode)api_iter.Current).GetNode () as XmlElement;
api_node.ParentNode.RemoveChild (api_node);
matched = true;
}
if (!matched)
Console.WriteLine ("Warning: <remove-node path=\"{0}\"/> matched no nodes", path);
}
XPathNodeIterator add_iter = meta_nav.Select ("/metadata/add-node");
while (add_iter.MoveNext ()) {
string path = add_iter.Current.GetAttribute ("path", "");
XPathNodeIterator api_iter = api_nav.Select (path);
bool matched = false;
while (api_iter.MoveNext ()) {
XmlElement api_node = ((IHasXmlNode)api_iter.Current).GetNode () as XmlElement;
foreach (XmlNode child in ((IHasXmlNode)add_iter.Current).GetNode().ChildNodes)
api_node.AppendChild (api_doc.ImportNode (child, true));
matched = true;
}
if (!matched)
Console.WriteLine ("Warning: <add-node path=\"{0}\"/> matched no nodes", path);
}
XPathNodeIterator attr_iter = meta_nav.Select ("/metadata/attr");
while (attr_iter.MoveNext ()) {
string path = attr_iter.Current.GetAttribute ("path", "");
string attr_name = attr_iter.Current.GetAttribute ("name", "");
XPathNodeIterator api_iter = api_nav.Select (path);
bool matched = false;
while (api_iter.MoveNext ()) {
XmlElement node = ((IHasXmlNode)api_iter.Current).GetNode () as XmlElement;
node.SetAttribute (attr_name, attr_iter.Current.Value);
matched = true;
}
if (!matched)
Console.WriteLine ("Warning: <attr path=\"{0}\"/> matched no nodes", path);
}
XPathNodeIterator remove_attr_iter = meta_nav.Select ("/metadata/remove-attr");
while (remove_attr_iter.MoveNext ()) {
string path = remove_attr_iter.Current.GetAttribute ("path", "");
string name = remove_attr_iter.Current.GetAttribute ("name", "");
XPathNodeIterator api_iter = api_nav.Select (path);
bool matched = false;
while (api_iter.MoveNext ()) {
XmlElement node = ((IHasXmlNode)api_iter.Current).GetNode () as XmlElement;
node.RemoveAttribute (name);
matched = true;
}
if (!matched)
Console.WriteLine ("Warning: <remove-attr path=\"{0}\"/> matched no nodes", path);
}
if (symbol_doc != null) {
XPathNavigator symbol_nav = symbol_doc.CreateNavigator ();
XPathNodeIterator iter = symbol_nav.Select ("/api/*");
while (iter.MoveNext ()) {
XmlNode sym_node = ((IHasXmlNode)iter.Current).GetNode ();
XPathNodeIterator parent_iter = api_nav.Select ("/api");
if (parent_iter.MoveNext ()) {
XmlNode parent_node = ((IHasXmlNode)parent_iter.Current).GetNode ();
parent_node.AppendChild (api_doc.ImportNode (sym_node, true));
}
}
}
api_doc.Save (api_filename);
return 0;
}
}
}
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