1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN"
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3 | "http://www.oasis-open.org/docbook/xml/4.3/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 pcre-download-http "http://www.newlisp.org/download/Tools/pcre-&pcre-version;.tar.gz">
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8 | <!ENTITY pcre-download-ftp "ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre-&pcre-version;.tar.bz2">
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9 | <!ENTITY pcre-size "344 KB">
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10 | <!ENTITY pcre-buildsize "3.5 MB">
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11 | <!ENTITY pcre-time "0.08 SBU">
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12 |
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13 | ]>
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14 |
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15 | <sect1 id="pcre" xreflabel="PCRE-&pcre-version;">
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16 | <?dbhtml filename="pcre.html"?>
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17 | <title>PCRE-&pcre-version;</title>
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18 |
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19 | <sect2>
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20 | <title>Introduction to <application><acronym>PCRE</acronym></application></title>
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21 |
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22 | <para>The <application><acronym>PCRE</acronym></application> package contains
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23 | <application>Perl</application> Compatible Regular Expression
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24 | libraries. These are useful for implementing regular expression pattern
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25 | matching using the same syntax and semantics as
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26 | <application>Perl</application> 5.</para>
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27 |
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28 | <sect3><title>Package information</title>
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29 | <itemizedlist spacing='compact'>
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30 | <listitem><para>Download (HTTP): <ulink
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31 | url="&pcre-download-http;"/></para></listitem>
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32 | <listitem><para>Download (FTP): <ulink
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33 | url="&pcre-download-ftp;"/></para></listitem>
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34 | <listitem><para>Download size: &pcre-size;</para></listitem>
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35 | <listitem><para>Estimated Disk space required:
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36 | &pcre-buildsize;</para></listitem>
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37 | <listitem><para>Estimated build time:
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38 | &pcre-time;</para></listitem></itemizedlist>
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39 | </sect3>
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40 | </sect2>
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41 |
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42 | <sect2>
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43 | <title>Installation of <application><acronym>PCRE</acronym></application></title>
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44 |
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45 | <para>Install <application><acronym>PCRE</acronym></application> by running
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46 | the following commands:</para>
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47 |
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48 | <screen><userinput><command>./configure --prefix=/usr --enable-utf8 &&
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49 | make &&
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50 | make install</command></userinput></screen>
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51 |
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52 | <para>If you reinstall <application>grep</application> after installing
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53 | <application>pcre</application>, <application>grep</application> will get
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54 | linked against <application>pcre</application> and may cause problems if
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55 | <filename>/usr</filename> is a separate mount point. To avoid this, either
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56 | pass the option <emphasis>--disable-perl-regexp</emphasis> when executing
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57 | <command>./configure</command> for <application>grep</application> or move
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58 | <filename>libpcre</filename> to <filename>/lib</filename> as follows.</para>
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59 |
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60 | <screen><userinput><command>mv /usr/lib/libpcre.so.* /lib/ &&
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61 | ln -sf ../../lib/libpcre.so.0 /usr/lib/libpcre.so</command></userinput></screen>
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62 | </sect2>
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63 |
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64 | <sect2>
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65 | <title>Command explanations</title>
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66 |
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67 | <para><parameter>--enable-utf8</parameter>: This switch includes the code for
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68 | handling <acronym>UTF</acronym>-8 character strings in the library.</para>
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69 |
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70 | </sect2>
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71 |
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72 | <sect2>
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73 | <title>Contents</title>
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74 |
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75 | <para>The <application><acronym>PCRE</acronym></application> package contains
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76 | the <filename class='libraryfile'>libpcre</filename> libraries,
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77 | <command>pcregrep</command>, <command>pcretest</command> and
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78 | <command>pcre-config</command>.</para>
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79 |
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80 | </sect2>
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81 |
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82 | <sect2><title>Description</title>
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83 |
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84 | <sect3><title>pcregrep</title>
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85 | <para><command>pcregrep</command> is a <command>grep</command> that understands
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86 | <application>Perl</application> compatible regular expressions.</para></sect3>
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87 |
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88 | <sect3><title>pcretest</title>
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89 | <para><command>pcretest</command> can test your
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90 | <application>Perl</application> compatible regular expression.</para></sect3>
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91 |
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92 | <sect3><title>pcre-config</title>
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93 | <para><command>pcre-config</command> is used during the compile process of
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94 | programs linking to this library.</para></sect3>
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95 |
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96 | </sect2>
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97 |
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98 | </sect1>
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99 |
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