System.Xml.DTDReader.ReadTextDeclaration C# (CSharp) Méthode

		private void ReadTextDeclaration ()
		{
			if (!currentInput.AllowTextDecl)
				throw NotWFError ("Text declaration cannot appear in this state.");

			currentInput.AllowTextDecl = false;

			SkipWhitespace ();

			// version decl
			if (PeekChar () == 'v') {
				Expect ("version");
				ExpectAfterWhitespace ('=');
				SkipWhitespace ();
				int quoteChar = ReadChar ();
				char [] expect1_0 = new char [3];
				int versionLength = 0;
				switch (quoteChar) {
				case '\'':
				case '"':
					while (PeekChar () != quoteChar) {
						if (PeekChar () == -1)
							throw NotWFError ("Invalid version declaration inside text declaration.");
						else if (versionLength == 3)
							throw NotWFError ("Invalid version number inside text declaration.");
						else {
							expect1_0 [versionLength] = (char) ReadChar ();
							versionLength++;
							if (versionLength == 3 && new String (expect1_0) != "1.0")
								throw NotWFError ("Invalid version number inside text declaration.");
						}
					}
					ReadChar ();
					SkipWhitespace ();
					break;
				default:
					throw NotWFError ("Invalid version declaration inside text declaration.");
				}
			}

			if (PeekChar () == 'e') {
				Expect ("encoding");
				ExpectAfterWhitespace ('=');
				SkipWhitespace ();
				int quoteChar = ReadChar ();
				switch (quoteChar) {
				case '\'':
				case '"':
					while (PeekChar () != quoteChar)
						if (ReadChar () == -1)
							throw NotWFError ("Invalid encoding declaration inside text declaration.");
					ReadChar ();
					SkipWhitespace ();
					break;
				default:
					throw NotWFError ("Invalid encoding declaration inside text declaration.");
				}
				// Encoding value should be checked inside XmlInputStream.
			}
			else
				throw NotWFError ("Encoding declaration is mandatory in text declaration.");

			Expect ("?>");
		}