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Viewing changes to src/addins/MonoDevelop.XmlEditor/MonoDevelop.XmlEditor/XmlFileExtensions.cs

  • Committer: Bazaar Package Importer
  • Author(s): Jo Shields
  • Date: 2011-06-27 17:03:13 UTC
  • mto: (1.8.1 upstream)
  • mto: This revision was merged to the branch mainline in revision 54.
  • Revision ID: james.westby@ubuntu.com-20110627170313-6cvz3s19x6e9hqe9
Import upstream version 2.5.92+dfsg

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src/addins/MonoDevelop.XmlEditor/MonoDevelop.XmlEditor/XmlFileExtensions.cs
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//
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// MonoDevelop XML Editor
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//
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// Copyright (C) 2006-2007 Matthew Ward
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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// 
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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// 
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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using Mono.Addins;
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using MonoDevelop.Core;
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using System;
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using System.Collections.Generic;
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namespace MonoDevelop.XmlEditor
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{
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        /// <summary>
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        /// The extensions that will be edited using the xml editor.
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        /// </summary>
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        public static class XmlFileExtensions
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        {
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                //note: these are all stored as LowerInvariant strings
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                static List<string> extensions;
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                public static IEnumerable<string> GetExtensions ()
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                {
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                        if (extensions == null) {
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                                extensions = new List<string> ();
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                                foreach (ExtensionNode node in AddinManager.GetExtensionNodes("/MonoDevelop/XmlEditor/XmlFileExtensions")) {
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                                        XmlFileExtensionNode xmlFileExtensionNode = node as XmlFileExtensionNode;
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                                        if (xmlFileExtensionNode != null)
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                                                extensions.Add (xmlFileExtensionNode.FileExtension.ToLowerInvariant ());
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                                }
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                        }
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                        //get user-registered extensions stored in the properties service but don't duplicate built-in ones
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                        //note: XmlEditorAddInOptions returns LowerInvariant strings
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                        foreach (string prop in XmlEditorOptions.GetRegisteredFileExtensions ())
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                                if (!extensions.Contains (prop))
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                                        yield return prop;
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                        foreach (string s in extensions)
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                                yield return s;
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                }
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                public static bool IsXmlFileExtension (string extension)
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                {
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                        if (string.IsNullOrEmpty (extension))
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                                return false;
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                        string ext = extension.ToLowerInvariant ();
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                        foreach (string knownExtension in GetExtensions ())
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                                if (ext == knownExtension)
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                                        return true;
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                        return false;
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                }
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        }
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}