From ad92dc50b7cdf7cfe086f21d19442d03a90fd05d Mon Sep 17 00:00:00 2001
From: Mike Buland <eichlan@xagasoft.com>
Date: Wed, 9 May 2007 15:04:31 +0000
Subject: Just a few things re-arranged, moved the new taf/xml systems to the
 inprogress directory, and moved the old xml system in, so it will require
 heavy changes.

---
 src/inprogress/xmlreader.h | 121 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 121 insertions(+)
 create mode 100644 src/inprogress/xmlreader.h

(limited to 'src/inprogress/xmlreader.h')

diff --git a/src/inprogress/xmlreader.h b/src/inprogress/xmlreader.h
new file mode 100644
index 0000000..708a386
--- /dev/null
+++ b/src/inprogress/xmlreader.h
@@ -0,0 +1,121 @@
+#ifndef XML_READER_H
+#define XML_READER_H
+
+#include <stdint.h>
+#include "bu/stream.h"
+#include "bu/fstring.h"
+#include "bu/xmlnode.h"
+
+namespace Bu
+{
+	/**
+	 * An Xml 1.1 reader.  I've decided to write this, this time, based on the
+	 * official W3C reccomendation, now included with the source code.  I've
+	 * named the productions in the parser states the same as in that document,
+	 * which may make them easier to find, etc, although possibly slightly less
+	 * optimized than writing my own reduced grammer.
+	 *
+	 * Below I will list differences between my parser and the official standard
+	 * as I come up with them.
+	 *  - Encoding and Standalone headings are ignored for the moment. (4.3.3,
+	 *    2.9)
+	 *  - The standalone heading attribute can have any standard whitespace
+	 *    before it (the specs say only spaces, no newlines). (2.9)
+	 *  - Since standalone is ignored, it is currently allowed to have any
+	 *    value (should be restricted to "yes" or "no"). (2.9)
+	 *  - Currently only UTF-8 / ascii are parsed.
+	 *  - [optional] The content of comments is thrown away. (2.5)
+	 *  - The content of processing instruction blocks is parsed properly, but
+	 *    thrown away. (2.6)
+	 */
+	class XmlReader
+	{
+	public:
+		XmlReader( Bu::Stream &sIn );
+		virtual ~XmlReader();
+
+		XmlNode *read();
+
+	private:
+		Bu::Stream &sIn;
+		Bu::FString sBuf;
+
+	private: // Helpers
+		const char *lookahead( int nAmnt );
+		void burn( int nAmnt );
+		void checkString( const char *str, int nLen );
+
+	private: // States
+		/**
+		 * The headers, etc.
+		 */
+		void prolog();
+
+		/**
+		 * The xml decleration (version, encoding, etc).
+		 */
+		void XMLDecl();
+
+		/**
+		 * Misc things, Includes Comments and PIData (Processing Instructions).
+		 */
+		void Misc();
+
+		/**
+		 * Comments
+		 */
+		void Comment();
+
+		/**
+		 * Processing Instructions
+		 */
+		void PI();
+
+		/**
+		 * Whitespace eater.
+		 */
+		void S();
+
+		/**
+		 * Optional whitespace eater.
+		 */
+		void Sq();
+
+		/**
+		 * XML Version spec
+		 */
+		void VersionInfo();
+
+		/**
+		 * Your basic equals sign with surrounding whitespace.
+		 */
+		void Eq();
+
+		/**
+		 * Read in an attribute value.
+		 */
+		FString AttValue();
+
+		/**
+		 * Read in the name of something.
+		 */
+		FString Name();
+
+		/**
+		 * Encoding decleration in the header
+		 */
+		void EncodingDecl();
+
+		/**
+		 * Standalone decleration in the header
+		 */
+		void SDDecl();
+
+		bool isS( unsigned char c )
+		{
+			return ( c == 0x20 || c == 0x9 || c == 0xD || c == 0xA );
+		}
+	};
+}
+
+#endif
-- 
cgit v1.2.3