source: appendixa/flex-desc.xml@ 69f8606d

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Last change on this file since 69f8606d was 60ed866, checked in by Timothy Bauscher <timothy@…>, 22 years ago

Fixed typos, removed old command explanation.

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@2114 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

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[8fcc2c0]1<sect2><title>Contents of Flex</title>
2
3<para>Last checked against version &flex-contversion;.</para>
[6370fa6]4
[bdc08c1]5<sect3><title>Program Files</title>
6<para>flex, flex++ (link to flex) and lex</para></sect3>
[6370fa6]7
[bdc08c1]8<sect3><title>Descriptions</title>
[6370fa6]9
[bdc08c1]10<sect4><title>flex</title>
11<para>flex is a tool for generating programs which recognize
12patterns in text. Pattern recognition is very useful in many applications.
13A user sets up rules
[6370fa6]14what to look for and flex will make a program that looks for those
[60ed866]15patterns. The reason people use flex is that it is much easier to set up
16rules for what to look for than to write the actual program which finds
[bdc08c1]17the text.</para></sect4>
18
19<sect4><title>flex++</title>
20<para>flex++ invokes a version of flex which is used exclusively for
21C++ scanners.</para></sect4>
22
23<sect4><title>lex</title>
[65824097]24<para>We create a bash script called lex which calls flex using the -l option.
[bdc08c1]25This is for compatibility purposes for programs which use lex instead
26of flex.</para></sect4>
27
28</sect3>
29
30<sect3><title>Library Files</title>
31<para>libfl.a</para></sect3>
32
33<sect3><title>Descriptions</title>
34
35<sect4><title>libfl</title>
[46105cf]36<para>libfl is the flex library.</para></sect4>
[bdc08c1]37
38</sect3>
[6370fa6]39
40</sect2>
41
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