source: BOOK/final-system/common/flex.xml@ de64be35

clfs-2.1 clfs-3.0.0-systemd clfs-3.0.0-sysvinit systemd sysvinit
Last change on this file since de64be35 was 2b220db9, checked in by Chris Staub <chris@…>, 12 years ago

Updates to installed programs lists

  • Property mode set to 100644
File size: 4.4 KB
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[3f8be484]1<?xml version="1.0" encoding="ISO-8859-1"?>
[aa18ac0]2<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
3 "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
[3f8be484]4 <!ENTITY % general-entities SYSTEM "../../general.ent">
5 %general-entities;
6]>
7
8<sect1 id="ch-system-flex" role="wrap">
9 <?dbhtml filename="flex.html"?>
10
11 <title>Flex-&flex-version;</title>
12
13 <indexterm zone="ch-system-flex">
14 <primary sortas="a-Flex">Flex</primary>
15 </indexterm>
16
17 <sect2 role="package">
18 <title/>
19
20 <para>The Flex package contains a utility for generating programs that
21 recognize patterns in text.</para>
22
23 </sect2>
24
25 <sect2 role="installation">
26 <title>Installation of Flex</title>
27
[4bb4b626]28 <para os="a">Prepare Flex for compilation:</para>
[3f8be484]29
[4bb4b626]30<screen os="b"><userinput>./configure --prefix=/usr</userinput></screen>
[3f8be484]31
[4bb4b626]32 <para os="c">Compile the package:</para>
[3f8be484]33
[4bb4b626]34<screen os="d"><userinput>make</userinput></screen>
[3f8be484]35
[4bb4b626]36 <para os="e">To test the results, issue:
[3f8be484]37 <userinput>make check</userinput>.</para>
38
[4bb4b626]39 <para os="f">Install the package:</para>
[3f8be484]40
[4bb4b626]41<screen os="g"><userinput>make install</userinput></screen>
[3f8be484]42
[4bb4b626]43 <para os="h">There are some packages that expect to find the
[3f8be484]44 <filename class="libraryfile">lex</filename> library in <filename
45 class="directory">/usr/lib</filename>. Create a symlink to account for
46 this:</para>
47
[4bb4b626]48<screen os="i"><userinput>ln -sv libfl.a /usr/lib/libl.a</userinput></screen>
[3f8be484]49
[4bb4b626]50 <para os="j">A few programs do not know about <command>flex</command> yet and
[3f8be484]51 try to run its predecessor, <command>lex</command>. To support those
52 programs, create a wrapper script named <filename>lex</filename> that
53 calls <filename>flex</filename> in <command>lex</command> emulation
54 mode:</para>
55
[4bb4b626]56<screen os="k"><userinput>cat &gt; /usr/bin/lex &lt;&lt; "EOF"
[3f8be484]57<literal>#!/bin/sh
58# Begin /usr/bin/lex
59
60exec /usr/bin/flex -l "$@"
61
62# End /usr/bin/lex</literal>
63EOF
[94e6142]64chmod -v 755 /usr/bin/lex</userinput></screen>
[3f8be484]65
66 </sect2>
67
68 <sect2 id="contents-flex" role="content">
69 <title>Contents of Flex</title>
70
71 <segmentedlist>
72 <segtitle>Installed programs</segtitle>
[f5e37b2]73 <segtitle>Installed libraries</segtitle>
[3f8be484]74
75 <seglistitem>
76 <seg>flex and lex</seg>
[f5e37b2]77 <seg>libfl.a and libfl_pic.a</seg>
[3f8be484]78 </seglistitem>
79 </segmentedlist>
80
81 <variablelist>
82 <bridgehead renderas="sect3">Short Descriptions</bridgehead>
83 <?dbfo list-presentation="list"?>
84 <?dbhtml list-presentation="table"?>
85
86 <varlistentry id="flex">
87 <term><command>flex</command></term>
88 <listitem>
89 <para>A tool for generating programs that recognize patterns in text;
90 it allows for the versatility to specify the rules for pattern-finding,
91 eradicating the need to develop a specialized program</para>
92 <indexterm zone="ch-system-flex flex">
93 <primary sortas="b-flex">flex</primary>
94 </indexterm>
95 </listitem>
96 </varlistentry>
97
[2b220db9]98 <varlistentry id="flexpp">
99 <term><command>flex++</command></term>
100 <listitem>
101 <para>Link to <command>flex</command> which makes it generate C++
102 scanner classes</para>
103 <indexterm zone="ch-system-flex flexpp">
104 <primary sortas="b-flex++">flex++</primary>
105 </indexterm>
106 </listitem>
107 </varlistentry>
108
[3f8be484]109 <varlistentry id="lex">
110 <term><command>lex</command></term>
111 <listitem>
112 <para>A script that runs <command>flex</command> in
113 <command>lex</command> emulation mode</para>
114 <indexterm zone="ch-system-flex lex">
115 <primary sortas="b-lex">lex</primary>
116 </indexterm>
117 </listitem>
118 </varlistentry>
119
120 <varlistentry id="libfl.a">
121 <term><filename class="libraryfile">libfl.a</filename></term>
122 <listitem>
123 <para>The <filename class="libraryfile">flex</filename> library</para>
124 <indexterm zone="ch-system-flex libfl.a">
125 <primary sortas="c-libfl.a">libfl.a</primary>
126 </indexterm>
127 </listitem>
128 </varlistentry>
129
[8053eec]130 <varlistentry id="libfl_pic.a">
131 <term><filename class="libraryfile">libfl_pic.a</filename></term>
132 <listitem>
133 <para>The <filename class="libraryfile">flex</filename> library</para>
134 <indexterm zone="ch-system-flex libfl_pic.a">
135 <primary sortas="c-libfl.a">libfl_pic.a</primary>
136 </indexterm>
137 </listitem>
138 </varlistentry>
139
[3f8be484]140 </variablelist>
141
142 </sect2>
143
144</sect1>
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