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数据挖掘的最常用工具。由于开源

<TD WIDTH="15%"><B><A HREF="../../../../weka/core/parser/JFlex/LexScan.html" title="class in weka.core.parser.JFlex">LexScan</A></B></TD>
<TD>The lexer of JFlex.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../weka/core/parser/JFlex/Macros.html" title="class in weka.core.parser.JFlex">Macros</A></B></TD>
<TD>Symbol table and expander for macros.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../weka/core/parser/JFlex/Main.html" title="class in weka.core.parser.JFlex">Main</A></B></TD>
<TD>This is the main class of JFlex controlling the scanner generation process.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../weka/core/parser/JFlex/NFA.html" title="class in weka.core.parser.JFlex">NFA</A></B></TD>
<TD>NFA representation in JFlex.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../weka/core/parser/JFlex/Options.html" title="class in weka.core.parser.JFlex">Options</A></B></TD>
<TD>Collects all global JFlex options.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../weka/core/parser/JFlex/Out.html" title="class in weka.core.parser.JFlex">Out</A></B></TD>
<TD>In this class all output to the java console is filtered.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../weka/core/parser/JFlex/PackEmitter.html" title="class in weka.core.parser.JFlex">PackEmitter</A></B></TD>
<TD>Encodes <code>int</code> arrays as strings.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../weka/core/parser/JFlex/RegExp.html" title="class in weka.core.parser.JFlex">RegExp</A></B></TD>
<TD>Stores a regular expression of rules section in a JFlex-specification.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../weka/core/parser/JFlex/RegExp1.html" title="class in weka.core.parser.JFlex">RegExp1</A></B></TD>
<TD>Stores a regular expression from the rules section of a JFlex specification.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../weka/core/parser/JFlex/RegExp2.html" title="class in weka.core.parser.JFlex">RegExp2</A></B></TD>
<TD>Regular expression with two children (e.g.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../weka/core/parser/JFlex/RegExps.html" title="class in weka.core.parser.JFlex">RegExps</A></B></TD>
<TD>Stores all rules of the specification for later access in RegExp -> NFA</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../weka/core/parser/JFlex/SemCheck.html" title="class in weka.core.parser.JFlex">SemCheck</A></B></TD>
<TD>Performs simple semantic analysis on regular expressions.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../weka/core/parser/JFlex/Skeleton.html" title="class in weka.core.parser.JFlex">Skeleton</A></B></TD>
<TD>This class stores the skeleton of generated scanners.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../weka/core/parser/JFlex/StatePairList.html" title="class in weka.core.parser.JFlex">StatePairList</A></B></TD>
<TD>A list of pairs of states.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../weka/core/parser/JFlex/StateSet.html" title="class in weka.core.parser.JFlex">StateSet</A></B></TD>
<TD>A set of NFA states (= integers).</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../weka/core/parser/JFlex/StateSetEnumerator.html" title="class in weka.core.parser.JFlex">StateSetEnumerator</A></B></TD>
<TD>Enumerates the states of a StateSet.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../weka/core/parser/JFlex/StdOutWriter.html" title="class in weka.core.parser.JFlex">StdOutWriter</A></B></TD>
<TD>Convenience class for JFlex stdout, redirects output to a TextArea
 if in GUI mode.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../weka/core/parser/JFlex/Timer.html" title="class in weka.core.parser.JFlex">Timer</A></B></TD>
<TD>Very simple timer for code generation time statistics.</TD>
</TR>
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<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
<B>Exception Summary</B></FONT></TH>
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<TD WIDTH="15%"><B><A HREF="../../../../weka/core/parser/JFlex/CharClassException.html" title="class in weka.core.parser.JFlex">CharClassException</A></B></TD>
<TD>This Exception is used in class CharClasses.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../weka/core/parser/JFlex/GeneratorException.html" title="class in weka.core.parser.JFlex">GeneratorException</A></B></TD>
<TD>Thrown when code generation has to be aborted.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../weka/core/parser/JFlex/MacroException.html" title="class in weka.core.parser.JFlex">MacroException</A></B></TD>
<TD>This Exception is used in the macro expander to report cycles or
 undefined macro usages.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../weka/core/parser/JFlex/ScannerException.html" title="class in weka.core.parser.JFlex">ScannerException</A></B></TD>
<TD>This Exception could be thrown while scanning the specification 
 (e.g.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../../weka/core/parser/JFlex/SilentExit.html" title="class in weka.core.parser.JFlex">SilentExit</A></B></TD>
<TD>Signals a silent exit (no statistics printout).</TD>
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