1 | <?xml version="1.0" encoding="UTF-8"?>
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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 pcre2-download-http "https://github.com/PCRE2Project/pcre2/releases/download/pcre2-&pcre2-version;/pcre2-&pcre2-version;.tar.bz2">
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8 | <!ENTITY pcre2-download-ftp " ">
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9 | <!ENTITY pcre2-md5sum "9d1fe11e2e919c7b395e3e8f0a5c3eec">
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10 | <!ENTITY pcre2-size "1.8 MB">
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11 | <!ENTITY pcre2-buildsize "20 MB (with tests)">
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12 | <!ENTITY pcre2-time "0.5 SBU (with tests)">
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13 | ]>
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14 |
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15 | <sect1 id="pcre2" xreflabel="pcre2-&pcre2-version;">
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16 | <?dbhtml filename="pcre2.html"?>
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17 |
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18 |
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19 | <title>PCRE2-&pcre2-version;</title>
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20 |
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21 | <indexterm zone="pcre2">
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22 | <primary sortas="a-pcre2">PCRE2</primary>
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23 | </indexterm>
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24 |
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25 | <sect2 role="package">
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26 | <title>Introduction to PCRE2</title>
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27 |
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28 | <para>
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29 | The <application>PCRE2</application> package contains a new generation of
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30 | the <application>Perl Compatible Regular Expression</application>
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31 | libraries. These are useful for implementing regular expression pattern
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32 | matching using the same syntax and semantics as <application>Perl</application>.
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33 | </para>
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34 |
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35 | &lfs122_checked;
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36 |
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37 | <bridgehead renderas="sect3">Package Information</bridgehead>
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38 | <itemizedlist spacing="compact">
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39 | <listitem>
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40 | <para>
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41 | Download (HTTP): <ulink url="&pcre2-download-http;"/>
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42 | </para>
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43 | </listitem>
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44 | <listitem>
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45 | <para>
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46 | Download (FTP): <ulink url="&pcre2-download-ftp;"/>
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47 | </para>
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48 | </listitem>
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49 | <listitem>
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50 | <para>
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51 | Download MD5 sum: &pcre2-md5sum;
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52 | </para>
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53 | </listitem>
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54 | <listitem>
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55 | <para>
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56 | Download size: &pcre2-size;
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57 | </para>
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58 | </listitem>
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59 | <listitem>
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60 | <para>
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61 | Estimated disk space required: &pcre2-buildsize;
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62 | </para>
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63 | </listitem>
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64 | <listitem>
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65 | <para>
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66 | Estimated build time: &pcre2-time;
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67 | </para>
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68 | </listitem>
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69 | </itemizedlist>
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70 |
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71 | <bridgehead renderas="sect3">PCRE2 Dependencies</bridgehead>
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72 |
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73 | <bridgehead renderas="sect4">Optional</bridgehead>
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74 | <para role="optional">
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75 | <xref linkend="valgrind"/> and
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76 | <ulink url="https://thrysoee.dk/editline/">libedit</ulink>
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77 | </para>
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78 |
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79 | </sect2>
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80 |
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81 | <sect2 role="installation">
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82 | <title>Installation of PCRE2</title>
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83 |
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84 | <para>
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85 | Install <application>PCRE2</application> by running the following
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86 | commands:
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87 | </para>
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88 |
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89 | <screen><userinput>./configure --prefix=/usr \
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90 | --docdir=/usr/share/doc/pcre2-&pcre2-version; \
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91 | --enable-unicode \
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92 | --enable-jit \
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93 | --enable-pcre2-16 \
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94 | --enable-pcre2-32 \
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95 | --enable-pcre2grep-libz \
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96 | --enable-pcre2grep-libbz2 \
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97 | --enable-pcre2test-libreadline \
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98 | --disable-static &&
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99 | make</userinput></screen>
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100 |
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101 | <para>
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102 | To test the results, issue: <command>make check</command>.
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103 | </para>
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104 |
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105 | <para>
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106 | Now, as the <systemitem class="username">root</systemitem> user:
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107 | </para>
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108 |
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109 | <screen role="root"><userinput>make install</userinput></screen>
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110 | </sect2>
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111 |
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112 | <sect2 role="commands">
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113 | <title>Command Explanations</title>
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114 |
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115 | <para>
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116 | <parameter>--enable-unicode</parameter>: This switch enables Unicode
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117 | support and includes the functions for handling UTF-8/16/32 character
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118 | strings in the library.
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119 | </para>
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120 |
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121 | <para>
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122 | <parameter>--enable-pcre2-16</parameter>: This switch enables 16 bit
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123 | character support.
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124 | </para>
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125 |
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126 | <para>
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127 | <parameter>--enable-pcre2-32</parameter>: This switch enables 32 bit
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128 | character support.
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129 | </para>
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130 |
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131 | <para>
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132 | <parameter>--enable-pcre2grep-libz</parameter>: This switch adds support
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133 | for reading .gz compressed files to <application>pcre2grep</application>.
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134 | </para>
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135 |
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136 | <para>
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137 | <parameter>--enable-pcre2grep-libbz2</parameter>: This switch adds
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138 | support for reading .bz2 compressed files to
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139 | <application>pcre2grep</application>.
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140 | </para>
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141 |
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142 | <para>
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143 | <parameter>--enable-pcre2test-libreadline</parameter>: This switch adds
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144 | line editing and history features to the
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145 | <application>pcre2test</application> program.
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146 | </para>
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147 |
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148 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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149 | href="../../xincludes/static-libraries.xml"/>
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150 |
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151 | <para>
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152 | <parameter>--enable-jit</parameter>: this option enables Just-in-time
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153 | compiling, which can greatly speed up pattern matching.
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154 | </para>
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155 |
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156 | </sect2>
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157 |
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158 | <sect2 role="content">
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159 | <title>Contents</title>
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160 |
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161 | <segmentedlist>
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162 | <segtitle>Installed Programs</segtitle>
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163 | <segtitle>Installed Libraries</segtitle>
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164 | <segtitle>Installed Directory</segtitle>
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165 |
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166 | <seglistitem>
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167 | <seg>
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168 | pcre2-config,
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169 | pcre2grep,
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170 | and pcre2test.
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171 | </seg>
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172 | <seg>
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173 | libpcre2-8.so,
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174 | libpcre2-16.so,
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175 | libpcre2-32.so,
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176 | and libpcre2-posix.so
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177 | </seg>
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178 | <seg>
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179 | /usr/share/doc/pcre2-&pcre2-version;
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180 | </seg>
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181 | </seglistitem>
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182 | </segmentedlist>
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183 |
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184 | <variablelist>
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185 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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186 | <?dbfo list-presentation="list"?>
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187 | <?dbhtml list-presentation="table"?>
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188 |
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189 | <varlistentry id="pcre2grep">
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190 | <term><command>pcre2grep</command></term>
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191 | <listitem>
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192 | <para>
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193 | is a version of <application>grep</application>
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194 | that understands
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195 | <application>Perl compatible regular expressions.</application>
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196 | </para>
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197 | <indexterm zone="pcre2 pcre2grep">
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198 | <primary sortas="b-pcre2grep">pcre2grep</primary>
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199 | </indexterm>
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200 | </listitem>
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201 | </varlistentry>
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202 |
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203 | <varlistentry id="pcre2test">
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204 | <term><command>pcre2test</command></term>
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205 | <listitem>
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206 | <para>
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207 | can test a
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208 | <application>Perl compatible regular expression.</application>
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209 | </para>
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210 | <indexterm zone="pcre2 pcre2test">
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211 | <primary sortas="b-pcre2test">pcre2</primary>
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212 | </indexterm>
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213 | </listitem>
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214 | </varlistentry>
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215 |
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216 | <varlistentry id="pcre2-config">
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217 | <term><command>pcre2-config</command></term>
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218 | <listitem>
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219 | <para>
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220 | outputs compilation information to programs linking against the
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221 | <application>PCRE2</application> libraries
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222 | </para>
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223 | <indexterm zone="pcre2 pcre2-config">
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224 | <primary sortas="b-pcre2-config">pcre2-config</primary>
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225 | </indexterm>
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226 | </listitem>
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227 | </varlistentry>
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228 |
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229 | </variablelist>
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230 |
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231 | </sect2>
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232 |
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233 | </sect1>
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