2 // XmlSignatureStreamReader.cs: Wrap TextReader and eliminate \r
5 // Atsushi Enomoto (atsushi@ximian.com)
7 // (C) 2005 Novell Inc.
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31 // Use it to distinguish 
 and \r. \r is removed, while 
 is not.
37 using System.Runtime.InteropServices;
39 namespace System.Security.Cryptography.Xml
41 internal class XmlSignatureStreamReader : TextReader
44 int cache = int.MinValue;
46 public XmlSignatureStreamReader (TextReader input)
51 public override void Close ()
56 public override int Peek ()
58 // If source TextReader does not support Peek(),
59 // it does not support too. Or it just returns EOF.
60 if (source.Peek () == -1)
63 if (cache != int.MinValue)
65 cache = source.Read ();
68 // cache must be '\r' here.
69 if (source.Peek () != '\n')
71 // Now Peek() returns '\n', so clear cache.
76 public override int Read ()
78 if (cache != int.MinValue) {
83 int i = source.Read ();
86 // read one more char (after '\r')
87 cache = source.Read ();
94 public override int ReadBlock (
95 [In, Out] char [] buffer, int index, int count)
97 char [] tmp = new char [count];
98 source.ReadBlock (tmp, 0, count);
100 for (int i = 0; i < count; j++) {
101 if (tmp [i] == '\r') {
102 if (++i < tmp.Length && tmp [i] == '\n')
103 buffer [j] = tmp [i++];
108 buffer [j] = tmp [i];
114 buffer [j++] = (char) d;
119 // I have no idea what to do here, but I don't think it
121 public override string ReadLine ()
123 return source.ReadLine ();
126 public override string ReadToEnd ()
128 return source.ReadToEnd ().Replace ("\r\n", "\n");