Imported existing code

indra/llmessage/llmessagetemplateparser.h

@@ -0,0 +1,86 @@
+/** 
+ * @file llmessagetemplateparser.h
+ * @brief Classes to parse message template.
+ *
+ * $LicenseInfo:firstyear=2000&license=viewergpl$
+ * 
+ * Copyright (c) 2000-2009, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at
+ * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+#ifndef LL_MESSAGETEMPLATEPARSER_H
+#define LL_MESSAGETEMPLATEPARSER_H
+
+#include <string>
+#include "llmessagetemplate.h"
+
+class LLTemplateTokenizer
+{
+public:
+	LLTemplateTokenizer(const std::string & contents);
+
+	U32 line() const;
+	bool atEOF() const;
+	std::string next();
+
+	bool want(const std::string & token);
+	bool wantEOF();
+private:
+	void inc();
+	void dec();
+	std::string get() const;
+	void error(std::string message = "generic") const;
+
+	struct positioned_token
+	{
+		std::string str;
+		U32 line;
+	};
+	
+	bool mStarted;
+	std::list<positioned_token> mTokens;
+	std::list<positioned_token>::const_iterator mCurrent;
+};
+
+class LLTemplateParser
+{
+public:
+	typedef std::list<LLMessageTemplate *>::const_iterator message_iterator;
+	
+	static LLMessageTemplate * parseMessage(LLTemplateTokenizer & tokens);
+	static LLMessageBlock * parseBlock(LLTemplateTokenizer & tokens);
+	static LLMessageVariable * parseVariable(LLTemplateTokenizer & tokens);
+
+	LLTemplateParser(LLTemplateTokenizer & tokens);
+	message_iterator getMessagesBegin() const;
+	message_iterator getMessagesEnd() const;
+	F32 getVersion() const;
+	
+private:
+	F32 mVersion;
+	std::list<LLMessageTemplate *> mMessages;
+};
+
+#endif