lfs-book-zh_CN/stylesheets/lfs-xsl/docbook-xsl-1.78.1/params/ebnf.assignment.xml

<refentry xmlns="http://docbook.org/ns/docbook"
          xmlns:xlink="http://www.w3.org/1999/xlink"
          xmlns:xi="http://www.w3.org/2001/XInclude"
          xmlns:src="http://nwalsh.com/xmlns/litprog/fragment"
          xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
          version="5.0" xml:id="ebnf.assignment">
<refmeta>
<refentrytitle>ebnf.assignment</refentrytitle>
<refmiscinfo class="other" otherclass="datatype">rtf</refmiscinfo>
</refmeta>
<refnamediv>
<refname>ebnf.assignment</refname>
<refpurpose>The EBNF production assignment operator</refpurpose>
</refnamediv>

<refsynopsisdiv>
<src:fragment xml:id="ebnf.assignment.frag">
<xsl:param condition="html" name="ebnf.assignment">
<code xmlns="">::=</code>
</xsl:param>
<xsl:param xmlns:fo="http://www.w3.org/1999/XSL/Format" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" condition="fo" name="ebnf.assignment">
  <fo:inline font-family="{$monospace.font.family}">
    <xsl:text>::=</xsl:text>
  </fo:inline>
</xsl:param>
</src:fragment>
</refsynopsisdiv>

<refsection><info><title>Description</title></info>

<para>The <parameter>ebnf.assignment</parameter> parameter determines what
text is used to show <quote>assignment</quote> in <tag>production</tag>s
in <tag>productionset</tag>s.</para>

<para>While <quote><literal>::=</literal></quote> is common, so are several
other operators.</para>

</refsection>
</refentry>