--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Symbian3/SDK/Source/GUID-FE888721-C479-5D8A-810F-1A79575A1D58.dita	Thu Jan 21 18:18:20 2010 +0000
@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. -->
+<!-- This component and the accompanying materials are made available under the terms of the License 
+"Eclipse Public License v1.0" which accompanies this distribution, 
+and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". -->
+<!-- Initial Contributors:
+    Nokia Corporation - initial contribution.
+Contributors: 
+-->
+<!DOCTYPE concept
+  PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
+<concept id="GUID-FE888721-C479-5D8A-810F-1A79575A1D58" xml:lang="en"><title>Introduction
+to Lexical Analysis</title><shortdesc>A <codeph>TLex</codeph> object is used to perform lexical analysis. </shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>
+<p>The class is used to:</p>
+<ul>
+<li id="GUID-4D79DE44-4E35-56C3-B6ED-5A82CD015FE9"><p>store a string</p> </li>
+<li id="GUID-537012CB-CFCC-55C3-82DE-1D9B18539BEC"><p>maintain an extraction
+mark to indicate the current lexical element being analysed</p> </li>
+<li id="GUID-7B398A9C-42F1-5ABE-80ED-4237F72806BD"><p>maintain a pointer to
+indicate the next character to be examined.</p> </li>
+</ul>
+<p>Member functions provide facilities to allow analysis and extraction of
+lexical elements from a <codeph>TLex</codeph> object, and a variety of string-to-number
+conversions.</p>
+<p>The <codeph>TLex</codeph> class provides general-purpose lexical analysis
+functions, using the locale-dependent functions of <codeph>TChar</codeph> to
+identify whether characters are digits, letters etc. The data for these locale-dependent
+functions is held in kernel-side locale tables. Thus, <codeph>TLex</codeph> functions
+which use them, require an executive call. If an application requires very
+fast lexical analysis of a language which is not locale-specific, then there
+may be some advantage in designing and implementing a special-purpose lexical
+analyzer class.</p>
+</conbody></concept>
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