2 // System.Xml.XmlParserInput
5 // Atsushi Enomoto (ginga@kit.hi-ho.ne.jp)
7 // (C)2003 Atsushi Enomoto
11 // Permission is hereby granted, free of charge, to any person obtaining
12 // a copy of this software and associated documentation files (the
13 // "Software"), to deal in the Software without restriction, including
14 // without limitation the rights to use, copy, modify, merge, publish,
15 // distribute, sublicense, and/or sell copies of the Software, and to
16 // permit persons to whom the Software is furnished to do so, subject to
17 // the following conditions:
19 // The above copyright notice and this permission notice shall be
20 // included in all copies or substantial portions of the Software.
22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
31 using System
.Collections
;
35 using System
.Globalization
;
40 internal class XmlParserInput
42 class XmlParserInputSource
44 public readonly string BaseURI
;
45 readonly TextReader reader
;
51 public XmlParserInputSource (
52 TextReader reader
, string baseUri
, bool pe
,
62 public int LineNumber
{
66 public int LinePosition
{
67 get { return column; }
79 if (isPE
&& state
== 0) {
83 int v
= reader
.Read ();
92 if (v
< 0 && state
== 1) {
101 public XmlParserInput (TextReader reader
, string baseURI
)
102 : this (reader
, baseURI
, 1, 0)
106 public XmlParserInput (TextReader reader
, string baseURI
, int line
, int column
)
108 this.source
= new XmlParserInputSource (reader
, baseURI
, false, line
, column
);
112 #region Public Methods
113 // Read the next character and compare it against the
114 // specified character.
117 while (sourceStack
.Count
> 0)
118 ((XmlParserInputSource
) sourceStack
.Pop ()).Close ();
122 public void Expect (int expected
)
124 int ch
= ReadChar ();
126 if (ch
!= expected
) {
128 String
.Format (CultureInfo
.InvariantCulture
,
129 "expected '{0}' ({1:X}) but found '{2}' ({3:X})",
137 public void Expect (string expected
)
139 int len
= expected
.Length
;
140 for(int i
=0; i
< len
; i
++)
141 Expect (expected
[i
]);
144 public void PushPEBuffer (DTDParameterEntityDeclaration pe
)
146 sourceStack
.Push (source
);
147 source
= new XmlParserInputSource (
148 new StringReader (pe
.ReplacementText
),
149 pe
.ActualUri
, true, 1, 0);
152 private int ReadSourceChar ()
154 int v
= source
.Read ();
155 while (v
< 0 && sourceStack
.Count
> 0) {
156 source
= sourceStack
.Pop () as XmlParserInputSource
;
162 public int PeekChar ()
167 peek_char
= ReadSourceChar ();
168 if (peek_char
>= 0xD800 && peek_char
<= 0xDBFF) {
169 peek_char
= 0x10000+((peek_char
-0xD800)<<10);
170 int i
= ReadSourceChar ();
171 if (i
>= 0xDC00 && i
<= 0xDFFF)
172 peek_char
+= (i
-0xDC00);
178 public int ReadChar ()
190 #region Public Properties
191 public string BaseURI
{
192 get { return source.BaseURI; }
195 public bool HasPEBuffer
{
196 get { return sourceStack.Count > 0; }
199 public int LineNumber
{
200 get { return source.LineNumber; }
203 public int LinePosition
{
204 get { return source.LinePosition; }
207 public bool AllowTextDecl
{
208 get { return allowTextDecl; }
209 set { allowTextDecl = value; }
215 Stack sourceStack
= new Stack ();
216 XmlParserInputSource source
;
219 bool allowTextDecl
= true;
221 private XmlException
ReaderError (string message
)
223 return new XmlException (message
, null, LineNumber
, LinePosition
);