162 lines
5.6 KiB
XML
Vendored
162 lines
5.6 KiB
XML
Vendored
<refentry xmlns="http://docbook.org/ns/docbook"
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xmlns:xlink="http://www.w3.org/1999/xlink"
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xmlns:xi="http://www.w3.org/2001/XInclude"
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xmlns:src="http://nwalsh.com/xmlns/litprog/fragment"
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xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
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version="5.0" xml:id="index.method">
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<refmeta>
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<refentrytitle>index.method</refentrytitle>
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<refmiscinfo class="other" otherclass="datatype">list</refmiscinfo>
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<refmiscinfo class="other" otherclass="value">basic</refmiscinfo>
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<refmiscinfo class="other" otherclass="value">kosek</refmiscinfo>
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<refmiscinfo class="other" otherclass="value">kimber</refmiscinfo>
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</refmeta>
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<refnamediv>
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<refname>index.method</refname>
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<refpurpose>Select method used to group index entries in an index</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<src:fragment xml:id="index.method.frag">
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<xsl:param name="index.method">basic</xsl:param>
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</src:fragment>
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</refsynopsisdiv>
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<refsection><info><title>Description</title></info>
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<para>This parameter lets you select which method to use for sorting and grouping
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index entries in an index.
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Indexes in Latin-based languages that have accented characters typically
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sort together accented words and unaccented words.
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Thus <quote>Á</quote> (U+00C1 LATIN CAPITAL LETTER A WITH ACUTE) would sort together
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with <quote>A</quote> (U+0041 LATIN CAPITAL LETTER A), so both would appear in the <quote>A</quote>
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section of the index.
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Languages using other alphabets (such as Russian, which is written in the Cyrillic alphabet)
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and languages using ideographic chararacters (such as Japanese)
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require grouping specific to the languages and alphabets.
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</para>
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<para>The default indexing method is limited.
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It can group accented characters in Latin-based languages only.
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It cannot handle non-Latin alphabets or ideographic languages.
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The other indexing methods require extensions of one type or
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another, and do not work with
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all XSLT processors, which is why they are not used by default.</para>
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<para>The three choices for indexing method are:</para>
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<variablelist>
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<varlistentry>
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<term><literal>basic</literal></term>
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<listitem>
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<para>
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(default) Sort and groups words based only on the Latin alphabet.
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Words with accented Latin letters will group and sort with
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their respective primary letter, but
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words in non-Latin alphabets will be
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put in the <quote>Symbols</quote> section of the index.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><literal>kosek</literal></term>
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<listitem>
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<para>
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This method sorts and groups words based on letter groups configured in
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the DocBook locale file for the given language.
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See, for example, the French locale file <filename>common/fr.xml</filename>.
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This method requires that the XSLT processor
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supports the EXSLT extensions (most do).
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It also requires support for using
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user-defined functions in xsl:key (xsltproc does not).
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</para>
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<para>This method is suitable for any language for which you can
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list all the individual characters that should appear
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in each letter group in an index.
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It is probably not practical to use it for ideographic languages
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such as Chinese that have hundreds or thousands of characters.
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</para>
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<para>To use the kosek method, you must:</para>
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<orderedlist>
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<listitem>
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<para>Use a processor that supports its extensions, such as
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Saxon 6 or Xalan (xsltproc and Saxon 8 do not).
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</para>
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</listitem>
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<listitem>
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<para>Set the index.method parameter's value to <quote>kosek</quote>.
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</para>
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</listitem>
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<listitem>
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<para>Import the appropriate index extensions stylesheet module
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<filename>fo/autoidx-kosek.xsl</filename> or
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<filename>html/autoidx-kosek.xsl</filename> into your
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customization.
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</para>
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</listitem>
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</orderedlist>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><literal>kimber</literal></term>
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<listitem>
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<para>
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This method uses extensions to the Saxon processor to implement
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sophisticated indexing processes. It uses its own
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configuration file, which can include information for any number of
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languages. Each language's configuration can group
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words using one of two processes. In the
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enumerated process similar to that used in the kosek method,
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you indicate the groupings character-by-character.
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In the between-key process, you specify the
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break-points in the sort order that should start a new group.
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The latter configuration is useful for ideographic languages
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such as Chinese, Japanese, and Korean.
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You can also define your own collation algorithms and how you
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want mixed Latin-alphabet words sorted.</para>
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<itemizedlist>
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<listitem>
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<para>For a whitepaper describing the extensions, see:
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<link xlink:href="http://www.innodata-isogen.com/knowledge_center/white_papers/back_of_book_for_xsl_fo.pdf">http://www.innodata-isogen.com/knowledge_center/white_papers/back_of_book_for_xsl_fo.pdf</link>.
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</para>
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</listitem>
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<listitem>
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<para>To download the extension library, see
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<link xlink:href="http://www.innodata-isogen.com/knowledge_center/tools_downloads/i18nsupport">http://www.innodata-isogen.com/knowledge_center/tools_downloads/i18nsupport</link>.
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</para>
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</listitem>
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</itemizedlist>
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<para>To use the kimber method, you must:</para>
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<orderedlist>
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<listitem>
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<para>Use Saxon (version 6 or 8) as your XSLT processor.
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</para>
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</listitem>
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<listitem>
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<para>Install and configure the Innodata Isogen library, using
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the documentation that comes with it.
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</para>
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</listitem>
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<listitem>
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<para>Set the index.method parameter's value to <quote>kimber</quote>.
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</para>
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</listitem>
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<listitem>
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<para>Import the appropriate index extensions stylesheet module
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<filename>fo/autoidx-kimber.xsl</filename> or
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<filename>html/autoidx-kimber.xsl</filename> into your
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customization.
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</para>
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</listitem>
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</orderedlist>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsection>
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</refentry>
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