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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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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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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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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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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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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134 | mkdir -pv /usr/share/doc/lua-&lua-version; &&
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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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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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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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171 | <segtitle>Installed Library</segtitle>
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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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179 | liblua.so
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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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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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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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