mcs/class/System.XML/System.Xml.Xsl/XsltContext.cs

   1 // System.Xml.Xsl.XsltContext
   2 //
   3 // Author: Tim Coleman <tim@timcoleman.com>
   4 // (C) Copyright 2002 Tim Coleman
   5
   6 //
   7 // Permission is hereby granted, free of charge, to any person obtaining
   8 // a copy of this software and associated documentation files (the
   9 // "Software"), to deal in the Software without restriction, including
  10 // without limitation the rights to use, copy, modify, merge, publish,
  11 // distribute, sublicense, and/or sell copies of the Software, and to
  12 // permit persons to whom the Software is furnished to do so, subject to
  13 // the following conditions:
  14 //
  15 // The above copyright notice and this permission notice shall be
  16 // included in all copies or substantial portions of the Software.
  17 //
  18 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  19 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  21 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  22 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  23 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  24 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25 //
  26
  27 using System;
  28 using System.Xml;
  29 using System.Xml.XPath;
  30
  31 namespace System.Xml.Xsl
  32 {
  33         public abstract class XsltContext : XmlNamespaceManager
  34         {
  35                 #region Constructors
  36                 public XsltContext ()
  37                         : base (new NameTable ())
  38                 {
  39                 }
  40
  41                 public XsltContext (NameTable table)
  42                         : base (table)
  43                 {
  44                 }
  45
  46                 #endregion
  47
  48                 #region Properties
  49
  50                 public abstract bool Whitespace { get; }
  51                 public abstract bool PreserveWhitespace (XPathNavigator nav);
  52
  53                 #endregion
  54
  55                 #region Methods
  56
  57                 public abstract int CompareDocument (string baseUri, string nextbaseUri);
  58                 public abstract IXsltContextFunction ResolveFunction (string prefix, string name, XPathResultType [] ArgTypes);
  59                 public abstract IXsltContextVariable ResolveVariable (string prefix, string name);
  60
  61                 #endregion
  62
  63                 #region XSLT Internal Calls
  64
  65                 internal virtual IXsltContextVariable ResolveVariable (XmlQualifiedName name)
  66                 {
  67                         throw new InvalidOperationException ("somehow you got into the internals of xslt!?");
  68                 }
  69
  70                 internal virtual IXsltContextFunction ResolveFunction (XmlQualifiedName name, XPathResultType [] ArgTypes)
  71                 {
  72                         throw new InvalidOperationException ("somehow you got into the internals of xslt!?");
  73                 }
  74                 #endregion
  75         }
  76
  77         // The static XSLT context, will try to simplify what it can
  78         internal interface IStaticXsltContext
  79         {
  80                 Expression TryGetVariable (string nm);
  81                 Expression TryGetFunction (XmlQualifiedName nm, FunctionArguments args);
  82                 XmlQualifiedName LookupQName (string s);
  83                 XmlNamespaceManager GetNsm ();
  84         }
  85 }