<?xml version="1.0" encoding="ASCII"?><!--This file was created automatically by html2xhtml--><!--from the HTML stylesheets.--><xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:d="http://docbook.org/ns/docbook" xmlns:doc="http://nwalsh.com/xsl/documentation/1.0" xmlns="http://www.w3.org/1999/xhtml" exclude-result-prefixes="doc d" version="1.0">
<!-- ********************************************************************
This file is part of the XSL DocBook Stylesheet distribution.
See ../README or http://cdn.docbook.org/release/xsl/current/ for
copyright and other information.
******************************************************************** -->
<doc:reference xmlns="">
<referenceinfo xmlns="http://www.w3.org/1999/xhtml">
<releaseinfo role="meta">
</releaseinfo>
<author><surname>Walsh</surname>
<firstname>Norman</firstname></author>
<copyright><year>1999</year><year>2000</year>
<holder>Norman Walsh</holder>
</copyright>
</referenceinfo>
<title xmlns="http://www.w3.org/1999/xhtml">HTML EBNF Reference</title>
<partintro xmlns="http://www.w3.org/1999/xhtml">
<section><title>Introduction</title>
<para>This is technical reference documentation for the DocBook XSL
Stylesheets; it documents (some of) the parameters, templates, and
other elements of the stylesheets.</para>
<para>This reference describes the templates and parameters relevant
to formatting EBNF markup.</para>
<para>This is not intended to be <quote>user</quote> documentation.
It is provided for developers writing customization layers for the
stylesheets, and for anyone who's interested in <quote>how it
works</quote>.</para>
<para>Although I am trying to be thorough, this documentation is known
to be incomplete. Don't forget to read the source, too :-)</para>
</section>
</partintro>
</doc:reference>
<!-- ==================================================================== -->
<xsl:template match="d:productionset">
<table width="100%" cellpadding="5">
<xsl:if test="$ebnf.table.bgcolor != ''">
<xsl:attribute name="style"><xsl:text>background-color: </xsl:text>
<xsl:value-of select="$ebnf.table.bgcolor"/>
</xsl:attribute>
</xsl:if>
<xsl:if test="$ebnf.table.border != 0">
<xsl:attribute name="border">1</xsl:attribute>
</xsl:if>
<xsl:attribute name="class">
<xsl:value-of select="local-name(.)"/>
</xsl:attribute>
<xsl:attribute name="summary">
<xsl:text>EBNF</xsl:text>
<xsl:if test="d:title|d:info/d:title">
<xsl:text> for </xsl:text>
<xsl:value-of select="d:title|d:info/d:title[1]"/>
</xsl:if>
</xsl:attribute>
<xsl:if test="d:title|d:info/d:title">
<tr>
<th align="{$direction.align.start}" valign="top">
<xsl:apply-templates select="." mode="class.attribute"/>
<xsl:apply-templates select="d:title|d:info/d:title[1]"/>
</th>
</tr>
</xsl:if>
<tr>
<td>
<table border="0" width="99%" cellpadding="0">
<xsl:if test="$ebnf.table.bgcolor != ''">
<xsl:attribute name="style"><xsl:text>background-color: </xsl:text>
<xsl:value-of select="$ebnf.table.bgcolor"/>
</xsl:attribute>
</xsl:if>
<xsl:attribute name="class">
<xsl:value-of select="local-name(.)"/>
</xsl:attribute>
<xsl:attribute name="summary">EBNF productions</xsl:attribute>
<xsl:apply-templates select="d:production|d:productionrecap"/>
</table>
</td>
</tr>
</table>
</xsl:template>
<xsl:template match="d:productionset/d:title">
<xsl:apply-templates/>
</xsl:template>
<xsl:template match="d:production">
<xsl:param name="recap" select="false()"/>
<tr>
<td align="{$direction.align.start}" valign="top">
<xsl:text>[</xsl:text>
<xsl:apply-templates select="." mode="label.markup"/>
<xsl:text>]</xsl:text>
</td>
<td align="{$direction.align.end}" valign="top">
<xsl:choose>
<xsl:when test="$recap">
<a>
<xsl:attribute name="href">
<xsl:call-template name="href.target">
<xsl:with-param name="object" select="."/>
</xsl:call-template>
</xsl:attribute>
<xsl:apply-templates select="d:lhs"/>
</a>
</xsl:when>
<xsl:otherwise>
<xsl:call-template name="id.attribute"/>
<xsl:call-template name="anchor"/>
<xsl:apply-templates select="d:lhs"/>
</xsl:otherwise>
</xsl:choose>
</td>
<td valign="top" align="center">
<xsl:copy-of select="$ebnf.assignment"/>
</td>
<td valign="top">
<xsl:apply-templates select="d:rhs"/>
<xsl:copy-of select="$ebnf.statement.terminator"/>
</td>
<td align="{$direction.align.start}" valign="top">
<xsl:choose>
<xsl:when test="d:rhs/d:lineannotation|d:constraint">
<xsl:apply-templates select="d:rhs/d:lineannotation" mode="rhslo"/>
<xsl:apply-templates select="d:constraint"/>
</xsl:when>
<xsl:otherwise>
<xsl:text> </xsl:text>
</xsl:otherwise>
</xsl:choose>
</td>
</tr>
</xsl:template>
<xsl:template match="d:productionrecap">
<xsl:variable name="targets" select="key('id',@linkend)"/>
<xsl:variable name="target" select="$targets[1]"/>
<xsl:if test="count($targets)=0">
<xsl:message>
<xsl:text>Error: no ID for productionrecap linkend: </xsl:text>
<xsl:value-of select="@linkend"/>
<xsl:text>.</xsl:text>
</xsl:message>
</xsl:if>
<xsl:if test="count($targets)>1">
<xsl:message>
<xsl:text>Warning: multiple "IDs" for productionrecap linkend: </xsl:text>
<xsl:value-of select="@linkend"/>
<xsl:text>.</xsl:text>
</xsl:message>
</xsl:if>
<xsl:apply-templates select="$target">
<xsl:with-param name="recap" select="true()"/>
</xsl:apply-templates>
</xsl:template>
<xsl:template match="d:lhs">
<xsl:apply-templates/>
</xsl:template>
<xsl:template match="d:rhs">
<xsl:apply-templates/>
<xsl:if test="following-sibling::d:rhs">
<xsl:text> |</xsl:text>
<br/>
</xsl:if>
</xsl:template>
<xsl:template match="d:nonterminal">
<xsl:variable name="linkend">
<xsl:call-template name="xpointer.idref">
<xsl:with-param name="xpointer" select="@def"/>
</xsl:call-template>
</xsl:variable>
<xsl:call-template name="check.id.unique">
<xsl:with-param name="linkend" select="$linkend"/>
</xsl:call-template>
<xsl:call-template name="check.idref.targets">
<xsl:with-param name="linkend" select="$linkend"/>
<xsl:with-param name="element-list">production</xsl:with-param>
</xsl:call-template>
<!-- If you don't provide content, you can't point outside this doc. -->
<xsl:choose>
<xsl:when test="*|text()"><!--nop--></xsl:when>
<xsl:otherwise>
<xsl:if test="$linkend = ''">
<xsl:message>
<xsl:text>Non-terminals with no content must point to </xsl:text>
<xsl:text>production elements in the current document.</xsl:text>
</xsl:message>
<xsl:message>
<xsl:text>Invalid xpointer for empty nt: </xsl:text>
<xsl:value-of select="@def"/>
</xsl:message>
</xsl:if>
</xsl:otherwise>
</xsl:choose>
<xsl:variable name="href">
<xsl:choose>
<xsl:when test="$linkend != ''">
<xsl:variable name="targets" select="key('id',$linkend)"/>
<xsl:variable name="target" select="$targets[1]"/>
<xsl:call-template name="href.target">
<xsl:with-param name="object" select="$target"/>
</xsl:call-template>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="@def"/>
</xsl:otherwise>
</xsl:choose>
</xsl:variable>
<a href="{$href}">
<xsl:choose>
<xsl:when test="*|text()">
<xsl:apply-templates/>
</xsl:when>
<xsl:otherwise>
<xsl:choose>
<xsl:when test="$linkend != ''">
<xsl:variable name="targets" select="key('id',$linkend)"/>
<xsl:variable name="target" select="$targets[1]"/>
<xsl:apply-templates select="$target/d:lhs"/>
</xsl:when>
<xsl:otherwise>
<xsl:text>???</xsl:text>
</xsl:otherwise>
</xsl:choose>
</xsl:otherwise>
</xsl:choose>
</a>
</xsl:template>
<xsl:template match="d:rhs/d:lineannotation">
<!--nop-->
</xsl:template>
<xsl:template match="d:rhs/d:lineannotation" mode="rhslo">
<xsl:text>/* </xsl:text>
<xsl:apply-templates/>
<xsl:text> */</xsl:text>
<br/>
</xsl:template>
<xsl:template match="d:constraint">
<xsl:call-template name="check.id.unique">
<xsl:with-param name="linkend" select="@linkend"/>
</xsl:call-template>
<xsl:call-template name="check.idref.targets">
<xsl:with-param name="linkend" select="@linkend"/>
<xsl:with-param name="element-list">constraintdef</xsl:with-param>
</xsl:call-template>
<xsl:variable name="href">
<xsl:variable name="targets" select="key('id',@linkend)"/>
<xsl:variable name="target" select="$targets[1]"/>
<xsl:call-template name="href.target">
<xsl:with-param name="object" select="$target"/>
</xsl:call-template>
</xsl:variable>
<xsl:text>[ </xsl:text>
<xsl:choose>
<xsl:when test="@role">
<xsl:value-of select="@role"/>
<xsl:text>: </xsl:text>
</xsl:when>
<xsl:otherwise>
<xsl:variable name="targets" select="key('id',@linkend)"/>
<xsl:variable name="target" select="$targets[1]"/>
<xsl:if test="$target/@role">
<xsl:value-of select="$target/@role"/>
<xsl:text>: </xsl:text>
</xsl:if>
</xsl:otherwise>
</xsl:choose>
<a href="{$href}">
<xsl:variable name="targets" select="key('id',@linkend)"/>
<xsl:variable name="target" select="$targets[1]"/>
<xsl:apply-templates select="$target" mode="title.markup"/>
</a>
<xsl:text> ]</xsl:text>
<xsl:if test="following-sibling::d:constraint">
<br/>
</xsl:if>
</xsl:template>
<xsl:template match="d:constraintdef">
<div>
<xsl:apply-templates select="." mode="class.attribute"/>
<xsl:call-template name="id.attribute"/>
<xsl:call-template name="anchor"/>
<xsl:apply-templates/>
</div>
</xsl:template>
<xsl:template match="d:constraintdef/d:title">
<p><strong><xsl:apply-templates/></strong></p>
</xsl:template>
<!-- ==================================================================== -->
</xsl:stylesheet>