[c1a0390] | 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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| 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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| 3 | "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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| 4 | <!ENTITY % general-entities SYSTEM "../../general.ent">
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| 5 | %general-entities;
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| 6 |
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| 7 | <!ENTITY lua-download-http "http://www.lua.org/ftp/lua-&lua-version;.tar.gz">
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| 8 | <!ENTITY lua-download-ftp " ">
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| 9 | <!ENTITY lua-md5sum "efbb645e897eae37cad4344ce8b0a614">
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| 10 | <!ENTITY lua-size "246 KB">
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| 11 | <!ENTITY lua-buildsize "3.5 MB">
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| 12 | <!ENTITY lua-time "0.1 SBU">
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| 13 | ]>
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| 14 |
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| 15 | <sect1 id="lua" xreflabel="Lua-&lua-version;">
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| 16 | <?dbhtml filename="lua.html"?>
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| 17 |
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| 18 | <sect1info>
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| 19 | <othername>$LastChangedBy$</othername>
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| 20 | <date>$Date$</date>
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| 21 | </sect1info>
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| 22 |
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| 23 | <title>Lua-&lua-version;</title>
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| 24 |
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| 25 | <indexterm zone="lua">
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| 26 | <primary sortas="a-Lua">Lua</primary>
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| 27 | </indexterm>
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| 28 |
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| 29 | <sect2 role="package">
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| 30 | <title>Introduction to Lua</title>
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| 31 |
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| 32 | <para>
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| 33 | <application>Lua</application> is a powerful light-weight programming
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| 34 | language designed for extending applications. It is also frequently used
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| 35 | as a general-purpose, stand-alone language. <application>Lua</application>
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| 36 | combines simple procedural syntax with powerful data description
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| 37 | constructs based on associative arrays and extensible semantics. It is
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| 38 | dynamically typed, interpreted from bytecodes, and has automatic memory
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| 39 | management with garbage collection, making it ideal for configuration,
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| 40 | scripting, and rapid prototyping. A fundamental concept in the design of
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| 41 | <application>Lua</application> is to provide meta-mechanisms for
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| 42 | implementing features, instead of providing a host of features directly in
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| 43 | the language. For example, although <application>Lua</application> is not
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| 44 | a pure object-oriented language, it does provide meta-mechanisms for
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| 45 | implementing classes and inheritance. <application>Lua</application>'s
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| 46 | meta-mechanisms bring an economy of concepts and keep the language small,
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| 47 | while allowing the semantics to be extended in unconventional ways.
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| 48 | Extensible semantics is a distinguishing feature of
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| 49 | <application>Lua</application>. <application>Lua</application> is a
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| 50 | language engine that you can embed into your application. This means that,
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| 51 | besides syntax and semantics, it has an API that allows the application to
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| 52 | exchange data with <application>Lua</application> programs and also to
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| 53 | extend <application>Lua</application> with C functions. In this sense, it
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| 54 | can be regarded as a language framework for building domain-specific
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| 55 | languages. <application>Lua</application> is implemented as a small
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| 56 | library of C functions, written in ANSI C, and compiles unmodified in all
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| 57 | known platforms. The implementation goals are simplicity, efficiency,
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| 58 | portability, and low embedding cost. The result is a fast language engine
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| 59 | with small footprint, making it ideal in embedded systems too.
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| 60 | </para>
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| 61 |
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| 62 | &lfs73_checked;
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| 63 |
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| 64 | <bridgehead renderas="sect3">Package Information</bridgehead>
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| 65 | <itemizedlist spacing="compact">
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| 66 | <listitem>
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| 67 | <para>
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| 68 | Download (HTTP): <ulink url="&lua-download-http;"/>
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| 69 | </para>
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| 70 | </listitem>
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| 71 | <listitem>
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| 72 | <para>
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| 73 | Download (FTP): <ulink url="&lua-download-ftp;"/>
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| 74 | </para>
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| 75 | </listitem>
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| 76 | <listitem>
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| 77 | <para>
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| 78 | Download MD5 sum: &lua-md5sum;
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| 79 | </para>
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| 80 | </listitem>
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| 81 | <listitem>
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| 82 | <para>
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| 83 | Download size: &lua-size;
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| 84 | </para>
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| 85 | </listitem>
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| 86 | <listitem>
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| 87 | <para>
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| 88 | Estimated disk space required: &lua-buildsize;
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| 89 | </para>
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| 90 | </listitem>
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| 91 | <listitem>
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| 92 | <para>
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| 93 | Estimated build time: &lua-time;
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| 94 | </para>
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| 95 | </listitem>
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| 96 | </itemizedlist>
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| 97 |
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[ef47d83f] | 98 | <bridgehead renderas="sect3">Additional Downloads</bridgehead>
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| 99 | <itemizedlist spacing="compact">
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| 100 | <listitem>
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| 101 | <para>
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| 102 | Required patch:
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| 103 | <ulink url="&patch-root;/lua-&lua-version;-shared_library-1.patch"/>
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| 104 | </para>
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| 105 | </listitem>
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| 106 | </itemizedlist>
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| 107 |
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[c1a0390] | 108 | <para condition="html" role="usernotes">User Notes:
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| 109 | <ulink url="&blfs-wiki;/lua"/>
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| 110 | </para>
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| 111 | </sect2>
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| 112 |
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| 113 | <sect2 role="installation">
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| 114 | <title>Installation of Lua</title>
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| 115 |
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| 116 | <para>
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| 117 | Install <application>Lua</application> by running the following
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| 118 | commands:
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| 119 | </para>
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| 120 |
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[ef47d83f] | 121 | <screen><userinput>patch -Np1 -i ../lua-&lua-version;-shared_library-1.patch &&
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| 122 | make linux</userinput></screen>
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[c1a0390] | 123 |
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| 124 | <para>
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| 125 | To test the results, issue: <command>make test</command>.
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| 126 | </para>
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| 127 |
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| 128 | <para>
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| 129 | Now, as the <systemitem class="username">root</systemitem> user:
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| 130 | </para>
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| 131 |
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[ef47d83f] | 132 | <screen role="root"><userinput>make INSTALL_TOP=/usr TO_LIB="liblua.so liblua.so.5.2 liblua.so.5.2.1" \
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| 133 | INSTALL_DATA="cp -d" INSTALL_MAN=/usr/share/man/man1 install &&
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[9b29b78] | 134 | mkdir -pv /usr/share/doc/lua-&lua-version; &&
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[c1a0390] | 135 | cp -v doc/*.{html,css,gif,png} /usr/share/doc/lua-&lua-version;</userinput></screen>
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| 136 |
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[ef47d83f] | 137 | <para>Some packages check for the <application>pkg-config</application> file
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| 138 | for <application>Lua</application>. As the
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| 139 | <systemitem class="username">root</systemitem> user:</para>
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| 140 |
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| 141 | <screen role="root"><userinput>cat > /usr/lib/pkgconfig/lua.pc << "EOF"
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| 142 | <literal>V=5.2
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| 143 | R=&lua-version;
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| 144 |
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| 145 | prefix=/usr
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| 146 | INSTALL_BIN=${prefix}/bin
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| 147 | INSTALL_INC=${prefix}/include
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| 148 | INSTALL_LIB=${prefix}/lib
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| 149 | INSTALL_MAN=${prefix}/man/man1
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| 150 | INSTALL_LMOD=${prefix}/share/lua/${V}
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| 151 | INSTALL_CMOD=${prefix}/lib/lua/${V}
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| 152 | exec_prefix=${prefix}
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| 153 | libdir=${exec_prefix}/lib
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| 154 | includedir=${prefix}/include
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| 155 |
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| 156 | Name: Lua
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| 157 | Description: An Extensible Extension Language
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| 158 | Version: ${R}
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| 159 | Requires:
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| 160 | Libs: -L${libdir} -llua -lm
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| 161 | Cflags: -I${includedir}</literal>
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| 162 | EOF</userinput></screen>
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| 163 |
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[c1a0390] | 164 | </sect2>
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| 165 |
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| 166 | <sect2 role="content">
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| 167 | <title>Contents</title>
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| 168 |
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| 169 | <segmentedlist>
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| 170 | <segtitle>Installed Programs</segtitle>
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[9b29b78] | 171 | <segtitle>Installed Library</segtitle>
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[c1a0390] | 172 | <segtitle>Installed Directories</segtitle>
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| 173 |
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| 174 | <seglistitem>
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| 175 | <seg>
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| 176 | lua and luac
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| 177 | </seg>
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| 178 | <seg>
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[ef47d83f] | 179 | liblua.so
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[c1a0390] | 180 | </seg>
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| 181 | <seg>
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| 182 | /usr/lib/lua,
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| 183 | /usr/share/lua and
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| 184 | /usr/share/doc/lua-&lua-version;
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| 185 | </seg>
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| 186 | </seglistitem>
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| 187 | </segmentedlist>
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| 188 |
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| 189 | <variablelist>
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| 190 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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| 191 | <?dbfo list-presentation="list"?>
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| 192 | <?dbhtml list-presentation="table"?>
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| 193 |
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| 194 | <varlistentry id="lua-prog">
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| 195 | <term><command>lua</command></term>
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| 196 | <listitem>
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| 197 | <para>
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| 198 | is the standalone Lua interpreter.
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| 199 | </para>
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| 200 | <indexterm zone="lua lua-prog">
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| 201 | <primary sortas="b-lua">lua</primary>
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| 202 | </indexterm>
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| 203 | </listitem>
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| 204 | </varlistentry>
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| 205 |
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| 206 | <varlistentry id="luac">
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| 207 | <term><command>luac</command></term>
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| 208 | <listitem>
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| 209 | <para>
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| 210 | is the Lua compiler.
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| 211 | </para>
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| 212 | <indexterm zone="lua luac">
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| 213 | <primary sortas="b-luac">luac</primary>
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| 214 | </indexterm>
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| 215 | </listitem>
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| 216 | </varlistentry>
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| 217 |
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[ef47d83f] | 218 | <varlistentry id="liblua">
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| 219 | <term><filename class="libraryfile">liblua.so</filename></term>
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| 220 | <listitem>
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| 221 | <para>
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| 222 | contains the <application>Lua</application> API functions.
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| 223 | </para>
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| 224 | <indexterm zone="lua liblua">
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| 225 | <primary sortas="b-liblua">liblua.so</primary>
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| 226 | </indexterm>
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| 227 | </listitem>
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| 228 | </varlistentry>
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| 229 |
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[c1a0390] | 230 | </variablelist>
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| 231 |
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| 232 | </sect2>
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| 233 |
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| 234 | </sect1>
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