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37 lines
1.1 KiB
XML
37 lines
1.1 KiB
XML
<sect2><title> </title><para> </para></sect2>
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<sect2><title>Descriptions</title>
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<para>(Last checked against version &flex-contversion;.)</para>
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<sect3><title>Program file descriptions</title>
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<sect4><title>flex</title>
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<para>flex is a tool for generating programs which recognize
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patterns in text. Pattern recognition is very useful in many applications.
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A user sets up rules about what to look for and flex will make a program
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that looks for those patterns. The reason people use flex is that it is
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much easier to set up rules for what to look for than to write the actual
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program which finds the text.</para></sect4>
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<sect4><title>flex++</title>
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<para>flex++ invokes a version of flex which is used exclusively for
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C++ scanners.</para></sect4>
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<sect4><title>lex</title>
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<para>We create a bash script called lex which calls flex using the -l option.
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This is for compatibility purposes for programs which use lex instead
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of flex.</para></sect4>
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</sect3>
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<sect3><title>Library file descriptions</title>
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<sect4><title>libfl</title>
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<para>libfl is the flex library.</para></sect4>
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</sect3>
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</sect2>
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