lib/asciidoctor/rfc/v3/validate.rng
<?xml version="1.0" encoding="UTF-8"?>
<grammar xmlns:a="http://relaxng.org/ns/compatibility/annotations/1.0" xmlns="http://relaxng.org/ns/structure/1.0" datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes">
<!-- xml2rfc Version 3 grammar -->
<define name="rfc">
<element name="rfc">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<optional>
<attribute name="number"/>
</optional>
<optional>
<attribute name="obsoletes" a:defaultValue=""/>
</optional>
<optional>
<attribute name="updates" a:defaultValue=""/>
</optional>
<optional>
<attribute name="category"/>
</optional>
<optional>
<attribute name="mode"/>
</optional>
<optional>
<attribute name="consensus" a:defaultValue="false">
<choice>
<value>no</value>
<value>yes</value>
<value>false</value>
<value>true</value>
</choice>
</attribute>
</optional>
<optional>
<attribute name="seriesNo"/>
</optional>
<optional>
<attribute name="ipr"/>
</optional>
<optional>
<attribute name="iprExtract">
<data type="IDREF"/>
</attribute>
</optional>
<optional>
<attribute name="submissionType" a:defaultValue="IETF">
<choice>
<value>IETF</value>
<value>IAB</value>
<value>IRTF</value>
<value>independent</value>
</choice>
</attribute>
</optional>
<optional>
<attribute name="docName"/>
</optional>
<optional>
<attribute name="sortRefs" a:defaultValue="false">
<choice>
<value>true</value>
<value>false</value>
</choice>
</attribute>
</optional>
<optional>
<attribute name="symRefs" a:defaultValue="true">
<choice>
<value>true</value>
<value>false</value>
</choice>
</attribute>
</optional>
<optional>
<attribute name="tocInclude" a:defaultValue="true">
<choice>
<value>true</value>
<value>false</value>
</choice>
</attribute>
</optional>
<optional>
<attribute name="tocDepth" a:defaultValue="3"/>
</optional>
<optional>
<attribute name="prepTime"/>
</optional>
<optional>
<attribute name="indexInclude" a:defaultValue="true">
<choice>
<value>true</value>
<value>false</value>
</choice>
</attribute>
</optional>
<optional>
<attribute name="version"/>
</optional>
<optional>
<attribute name="scripts" a:defaultValue="Common,Latin"/>
</optional>
<optional>
<attribute name="expiresDate"/>
</optional>
<zeroOrMore>
<ref name="link"/>
</zeroOrMore>
<ref name="front"/>
<ref name="middle"/>
<optional>
<ref name="back"/>
</optional>
</element>
</define>
<define name="link">
<element name="link">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<attribute name="href"/>
<optional>
<attribute name="rel"/>
</optional>
</element>
</define>
<define name="front">
<element name="front">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<ref name="title"/>
<zeroOrMore>
<ref name="seriesInfo"/>
</zeroOrMore>
<oneOrMore>
<ref name="author"/>
</oneOrMore>
<optional>
<ref name="date"/>
</optional>
<zeroOrMore>
<ref name="area"/>
</zeroOrMore>
<zeroOrMore>
<ref name="workgroup"/>
</zeroOrMore>
<zeroOrMore>
<ref name="keyword"/>
</zeroOrMore>
<optional>
<ref name="abstract"/>
</optional>
<zeroOrMore>
<ref name="note"/>
</zeroOrMore>
<optional>
<ref name="boilerplate"/>
</optional>
</element>
</define>
<define name="title">
<element name="title">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<optional>
<attribute name="abbrev"/>
</optional>
<optional>
<attribute name="ascii"/>
</optional>
<text/>
</element>
</define>
<define name="author">
<element name="author">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<optional>
<attribute name="initials"/>
</optional>
<optional>
<attribute name="asciiInitials"/>
</optional>
<optional>
<attribute name="surname"/>
</optional>
<optional>
<attribute name="asciiSurname"/>
</optional>
<optional>
<attribute name="fullname"/>
</optional>
<optional>
<attribute name="role">
<value>editor</value>
</attribute>
</optional>
<optional>
<attribute name="asciiFullname"/>
</optional>
<optional>
<ref name="organization"/>
</optional>
<optional>
<ref name="address"/>
</optional>
</element>
</define>
<define name="organization">
<element name="organization">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<optional>
<attribute name="abbrev"/>
</optional>
<optional>
<attribute name="ascii"/>
</optional>
<text/>
</element>
</define>
<define name="address">
<element name="address">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<optional>
<ref name="postal"/>
</optional>
<optional>
<ref name="phone"/>
</optional>
<optional>
<ref name="facsimile"/>
</optional>
<optional>
<ref name="email"/>
</optional>
<optional>
<ref name="uri"/>
</optional>
</element>
</define>
<define name="postal">
<element name="postal">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<choice>
<zeroOrMore>
<choice>
<ref name="city"/>
<ref name="code"/>
<ref name="country"/>
<ref name="region"/>
<ref name="street"/>
</choice>
</zeroOrMore>
<oneOrMore>
<ref name="postalLine"/>
</oneOrMore>
</choice>
</element>
</define>
<define name="street">
<element name="street">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<optional>
<attribute name="ascii"/>
</optional>
<text/>
</element>
</define>
<define name="city">
<element name="city">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<optional>
<attribute name="ascii"/>
</optional>
<text/>
</element>
</define>
<define name="region">
<element name="region">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<optional>
<attribute name="ascii"/>
</optional>
<text/>
</element>
</define>
<define name="code">
<element name="code">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<optional>
<attribute name="ascii"/>
</optional>
<text/>
</element>
</define>
<define name="country">
<element name="country">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<optional>
<attribute name="ascii"/>
</optional>
<text/>
</element>
</define>
<define name="postalLine">
<element name="postalLine">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<optional>
<attribute name="ascii"/>
</optional>
<text/>
</element>
</define>
<define name="phone">
<element name="phone">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<text/>
</element>
</define>
<define name="facsimile">
<element name="facsimile">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<text/>
</element>
</define>
<define name="email">
<element name="email">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<optional>
<attribute name="ascii"/>
</optional>
<text/>
</element>
</define>
<define name="uri">
<element name="uri">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<text/>
</element>
</define>
<define name="date">
<element name="date">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<optional>
<attribute name="day"/>
</optional>
<optional>
<attribute name="month"/>
</optional>
<optional>
<attribute name="year"/>
</optional>
<empty/>
</element>
</define>
<define name="area">
<element name="area">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<text/>
</element>
</define>
<define name="workgroup">
<element name="workgroup">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<text/>
</element>
</define>
<define name="keyword">
<element name="keyword">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<text/>
</element>
</define>
<define name="abstract">
<element name="abstract">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<optional>
<attribute name="anchor">
<data type="ID"/>
</attribute>
</optional>
<optional>
<attribute name="pn"/>
</optional>
<oneOrMore>
<choice>
<ref name="dl"/>
<ref name="ol"/>
<ref name="t"/>
<ref name="ul"/>
</choice>
</oneOrMore>
</element>
</define>
<define name="note">
<element name="note">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<optional>
<attribute name="title"/>
</optional>
<optional>
<attribute name="pn"/>
</optional>
<optional>
<attribute name="removeInRFC" a:defaultValue="false">
<choice>
<value>true</value>
<value>false</value>
</choice>
</attribute>
</optional>
<optional>
<ref name="name"/>
</optional>
<oneOrMore>
<choice>
<ref name="dl"/>
<ref name="ol"/>
<ref name="t"/>
<ref name="ul"/>
</choice>
</oneOrMore>
</element>
</define>
<define name="boilerplate">
<element name="boilerplate">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<oneOrMore>
<ref name="section"/>
</oneOrMore>
</element>
</define>
<define name="middle">
<element name="middle">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<oneOrMore>
<ref name="section"/>
</oneOrMore>
</element>
</define>
<define name="section">
<element name="section">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<optional>
<attribute name="anchor">
<data type="ID"/>
</attribute>
</optional>
<optional>
<attribute name="pn"/>
</optional>
<optional>
<attribute name="title"/>
</optional>
<optional>
<attribute name="numbered" a:defaultValue="true">
<choice>
<value>true</value>
<value>false</value>
</choice>
</attribute>
</optional>
<optional>
<attribute name="toc" a:defaultValue="default">
<choice>
<value>include</value>
<value>exclude</value>
<value>default</value>
</choice>
</attribute>
</optional>
<optional>
<attribute name="removeInRFC" a:defaultValue="false">
<choice>
<value>true</value>
<value>false</value>
</choice>
</attribute>
</optional>
<optional>
<ref name="name"/>
</optional>
<zeroOrMore>
<choice>
<ref name="artwork"/>
<ref name="aside"/>
<ref name="blockquote"/>
<ref name="dl"/>
<ref name="figure"/>
<ref name="iref"/>
<ref name="ol"/>
<ref name="sourcecode"/>
<ref name="t"/>
<ref name="table"/>
<ref name="texttable"/>
<ref name="ul"/>
</choice>
</zeroOrMore>
<zeroOrMore>
<ref name="section"/>
</zeroOrMore>
</element>
</define>
<define name="name">
<element name="name">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<optional>
<attribute name="slugifiedName"/>
</optional>
<zeroOrMore>
<choice>
<text/>
<ref name="cref"/>
<ref name="eref"/>
<ref name="relref"/>
<ref name="tt"/>
<ref name="xref"/>
</choice>
</zeroOrMore>
</element>
</define>
<define name="t">
<element name="t">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<optional>
<attribute name="anchor">
<data type="ID"/>
</attribute>
</optional>
<optional>
<attribute name="pn"/>
</optional>
<optional>
<attribute name="hangText"/>
</optional>
<optional>
<attribute name="keepWithNext" a:defaultValue="false">
<choice>
<value>false</value>
<value>true</value>
</choice>
</attribute>
</optional>
<optional>
<attribute name="keepWithPrevious" a:defaultValue="false">
<choice>
<value>false</value>
<value>true</value>
</choice>
</attribute>
</optional>
<zeroOrMore>
<choice>
<text/>
<ref name="bcp14"/>
<ref name="cref"/>
<ref name="em"/>
<ref name="eref"/>
<ref name="iref"/>
<ref name="list"/>
<ref name="relref"/>
<ref name="spanx"/>
<ref name="strong"/>
<ref name="sub"/>
<ref name="sup"/>
<ref name="tt"/>
<ref name="vspace"/>
<ref name="xref"/>
</choice>
</zeroOrMore>
</element>
</define>
<define name="aside">
<element name="aside">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<optional>
<attribute name="anchor">
<data type="ID"/>
</attribute>
</optional>
<optional>
<attribute name="pn"/>
</optional>
<zeroOrMore>
<choice>
<ref name="artwork"/>
<ref name="dl"/>
<ref name="figure"/>
<ref name="iref"/>
<ref name="list"/>
<ref name="ol"/>
<ref name="t"/>
<ref name="table"/>
<ref name="ul"/>
</choice>
</zeroOrMore>
</element>
</define>
<define name="blockquote">
<element name="blockquote">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<optional>
<attribute name="anchor">
<data type="ID"/>
</attribute>
</optional>
<optional>
<attribute name="pn"/>
</optional>
<optional>
<attribute name="cite"/>
</optional>
<optional>
<attribute name="quotedFrom"/>
</optional>
<choice>
<oneOrMore>
<choice>
<ref name="artwork"/>
<ref name="dl"/>
<ref name="figure"/>
<ref name="ol"/>
<ref name="sourcecode"/>
<ref name="t"/>
<ref name="ul"/>
</choice>
</oneOrMore>
<oneOrMore>
<choice>
<text/>
<ref name="bcp14"/>
<ref name="cref"/>
<ref name="em"/>
<ref name="eref"/>
<ref name="iref"/>
<ref name="relref"/>
<ref name="strong"/>
<ref name="sub"/>
<ref name="sup"/>
<ref name="tt"/>
<ref name="xref"/>
</choice>
</oneOrMore>
</choice>
</element>
</define>
<define name="list">
<element name="list">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<optional>
<attribute name="style" a:defaultValue="empty"/>
</optional>
<optional>
<attribute name="hangIndent"/>
</optional>
<optional>
<attribute name="counter"/>
</optional>
<optional>
<attribute name="pn"/>
</optional>
<oneOrMore>
<ref name="t"/>
</oneOrMore>
</element>
</define>
<define name="ol">
<element name="ol">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<optional>
<attribute name="anchor">
<data type="ID"/>
</attribute>
</optional>
<optional>
<attribute name="type" a:defaultValue="1"/>
</optional>
<optional>
<attribute name="start" a:defaultValue="1"/>
</optional>
<optional>
<attribute name="group"/>
</optional>
<optional>
<attribute name="spacing" a:defaultValue="normal">
<choice>
<value>normal</value>
<value>compact</value>
</choice>
</attribute>
</optional>
<optional>
<attribute name="pn"/>
</optional>
<oneOrMore>
<ref name="li"/>
</oneOrMore>
</element>
</define>
<define name="ul">
<element name="ul">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<optional>
<attribute name="anchor">
<data type="ID"/>
</attribute>
</optional>
<optional>
<attribute name="spacing" a:defaultValue="normal">
<choice>
<value>normal</value>
<value>compact</value>
</choice>
</attribute>
</optional>
<optional>
<attribute name="empty" a:defaultValue="false">
<choice>
<value>false</value>
<value>true</value>
</choice>
</attribute>
<optional>
<attribute name="pn"/>
</optional>
</optional>
<oneOrMore>
<ref name="li"/>
</oneOrMore>
</element>
</define>
<define name="li">
<element name="li">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<optional>
<attribute name="anchor">
<data type="ID"/>
</attribute>
</optional>
<optional>
<attribute name="pn"/>
</optional>
<choice>
<oneOrMore>
<choice>
<ref name="artwork"/>
<ref name="dl"/>
<ref name="figure"/>
<ref name="ol"/>
<ref name="sourcecode"/>
<ref name="t"/>
<ref name="ul"/>
</choice>
</oneOrMore>
<oneOrMore>
<choice>
<text/>
<ref name="bcp14"/>
<ref name="cref"/>
<ref name="em"/>
<ref name="eref"/>
<ref name="iref"/>
<ref name="relref"/>
<ref name="strong"/>
<ref name="sub"/>
<ref name="sup"/>
<ref name="tt"/>
<ref name="xref"/>
</choice>
</oneOrMore>
</choice>
</element>
</define>
<define name="dl">
<element name="dl">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<optional>
<attribute name="anchor">
<data type="ID"/>
</attribute>
</optional>
<optional>
<attribute name="spacing" a:defaultValue="normal">
<choice>
<value>normal</value>
<value>compact</value>
</choice>
</attribute>
</optional>
<optional>
<attribute name="hanging" a:defaultValue="true">
<choice>
<value>false</value>
<value>true</value>
</choice>
</attribute>
</optional>
<optional>
<attribute name="pn"/>
</optional>
<oneOrMore>
<ref name="dt"/>
<ref name="dd"/>
</oneOrMore>
</element>
</define>
<define name="dt">
<element name="dt">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<optional>
<attribute name="anchor">
<data type="ID"/>
</attribute>
</optional>
<optional>
<attribute name="pn"/>
</optional>
<zeroOrMore>
<choice>
<text/>
<ref name="bcp14"/>
<ref name="cref"/>
<ref name="em"/>
<ref name="eref"/>
<ref name="iref"/>
<ref name="relref"/>
<ref name="strong"/>
<ref name="sub"/>
<ref name="sup"/>
<ref name="tt"/>
<ref name="xref"/>
</choice>
</zeroOrMore>
</element>
</define>
<define name="dd">
<element name="dd">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<optional>
<attribute name="anchor">
<data type="ID"/>
</attribute>
</optional>
<optional>
<attribute name="pn"/>
</optional>
<choice>
<oneOrMore>
<choice>
<ref name="artwork"/>
<ref name="dl"/>
<ref name="figure"/>
<ref name="ol"/>
<ref name="sourcecode"/>
<ref name="t"/>
<ref name="ul"/>
</choice>
</oneOrMore>
<oneOrMore>
<choice>
<text/>
<ref name="bcp14"/>
<ref name="cref"/>
<ref name="em"/>
<ref name="eref"/>
<ref name="iref"/>
<ref name="relref"/>
<ref name="strong"/>
<ref name="sub"/>
<ref name="sup"/>
<ref name="tt"/>
<ref name="xref"/>
</choice>
</oneOrMore>
</choice>
</element>
</define>
<define name="xref">
<element name="xref">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<attribute name="target">
<data type="IDREF"/>
</attribute>
<optional>
<attribute name="pageno" a:defaultValue="false">
<choice>
<value>true</value>
<value>false</value>
</choice>
</attribute>
</optional>
<optional>
<attribute name="format" a:defaultValue="default">
<choice>
<value>default</value>
<value>title</value>
<value>counter</value>
<value>none</value>
</choice>
</attribute>
</optional>
<optional>
<attribute name="derivedContent"/>
</optional>
<text/>
</element>
</define>
<define name="relref">
<element name="relref">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<attribute name="target">
<data type="IDREF"/>
</attribute>
<optional>
<attribute name="displayFormat" a:defaultValue="of">
<choice>
<value>of</value>
<value>comma</value>
<value>parens</value>
<value>bare</value>
</choice>
</attribute>
</optional>
<attribute name="section"/>
<optional>
<attribute name="relative"/>
</optional>
<optional>
<attribute name="derivedLink"/>
</optional>
<text/>
</element>
</define>
<define name="eref">
<element name="eref">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<attribute name="target"/>
<text/>
</element>
</define>
<define name="iref">
<element name="iref">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<attribute name="item"/>
<optional>
<attribute name="subitem" a:defaultValue=""/>
</optional>
<optional>
<attribute name="primary" a:defaultValue="false">
<choice>
<value>true</value>
<value>false</value>
</choice>
</attribute>
</optional>
<optional>
<attribute name="pn"/>
</optional>
<empty/>
</element>
</define>
<define name="cref">
<element name="cref">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<optional>
<attribute name="anchor">
<data type="ID"/>
</attribute>
</optional>
<optional>
<attribute name="source"/>
</optional>
<optional>
<attribute name="display" a:defaultValue="true">
<choice>
<value>true</value>
<value>false</value>
</choice>
</attribute>
</optional>
<zeroOrMore>
<choice>
<text/>
<ref name="em"/>
<ref name="eref"/>
<ref name="relref"/>
<ref name="strong"/>
<ref name="sub"/>
<ref name="sup"/>
<ref name="tt"/>
<ref name="xref"/>
</choice>
</zeroOrMore>
</element>
</define>
<define name="tt">
<element name="tt">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<zeroOrMore>
<choice>
<text/>
<ref name="bcp14"/>
<ref name="cref"/>
<ref name="em"/>
<ref name="eref"/>
<ref name="iref"/>
<ref name="relref"/>
<ref name="strong"/>
<ref name="sub"/>
<ref name="sup"/>
<ref name="xref"/>
</choice>
</zeroOrMore>
</element>
</define>
<define name="strong">
<element name="strong">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<zeroOrMore>
<choice>
<text/>
<ref name="bcp14"/>
<ref name="cref"/>
<ref name="em"/>
<ref name="eref"/>
<ref name="iref"/>
<ref name="relref"/>
<ref name="sub"/>
<ref name="sup"/>
<ref name="tt"/>
<ref name="xref"/>
</choice>
</zeroOrMore>
</element>
</define>
<define name="em">
<element name="em">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<zeroOrMore>
<choice>
<text/>
<ref name="bcp14"/>
<ref name="cref"/>
<ref name="eref"/>
<ref name="iref"/>
<ref name="relref"/>
<ref name="strong"/>
<ref name="sub"/>
<ref name="sup"/>
<ref name="tt"/>
<ref name="xref"/>
</choice>
</zeroOrMore>
</element>
</define>
<define name="sub">
<element name="sub">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<zeroOrMore>
<choice>
<text/>
<ref name="bcp14"/>
<ref name="cref"/>
<ref name="em"/>
<ref name="eref"/>
<ref name="iref"/>
<ref name="relref"/>
<ref name="strong"/>
<ref name="tt"/>
<ref name="xref"/>
</choice>
</zeroOrMore>
</element>
</define>
<define name="sup">
<element name="sup">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<zeroOrMore>
<choice>
<text/>
<ref name="bcp14"/>
<ref name="cref"/>
<ref name="em"/>
<ref name="eref"/>
<ref name="iref"/>
<ref name="relref"/>
<ref name="strong"/>
<ref name="tt"/>
<ref name="xref"/>
</choice>
</zeroOrMore>
</element>
</define>
<define name="spanx">
<element name="spanx">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<optional>
<attribute name="xml:space" a:defaultValue="preserve">
<choice>
<value>default</value>
<value>preserve</value>
</choice>
</attribute>
</optional>
<optional>
<attribute name="style" a:defaultValue="emph"/>
</optional>
<text/>
</element>
</define>
<define name="vspace">
<element name="vspace">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<optional>
<attribute name="blankLines" a:defaultValue="0"/>
</optional>
<empty/>
</element>
</define>
<define name="figure">
<element name="figure">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<optional>
<attribute name="anchor">
<data type="ID"/>
</attribute>
</optional>
<optional>
<attribute name="pn"/>
</optional>
<optional>
<attribute name="title" a:defaultValue=""/>
</optional>
<optional>
<attribute name="suppress-title" a:defaultValue="false">
<choice>
<value>true</value>
<value>false</value>
</choice>
</attribute>
</optional>
<optional>
<attribute name="src"/>
</optional>
<optional>
<attribute name="originalSrc"/>
</optional>
<optional>
<attribute name="align" a:defaultValue="left">
<choice>
<value>left</value>
<value>center</value>
<value>right</value>
</choice>
</attribute>
</optional>
<optional>
<attribute name="alt" a:defaultValue=""/>
</optional>
<optional>
<attribute name="width" a:defaultValue=""/>
</optional>
<optional>
<attribute name="height" a:defaultValue=""/>
</optional>
<optional>
<ref name="name"/>
</optional>
<zeroOrMore>
<ref name="iref"/>
</zeroOrMore>
<optional>
<ref name="preamble"/>
</optional>
<oneOrMore>
<choice>
<ref name="artwork"/>
<ref name="sourcecode"/>
</choice>
</oneOrMore>
<optional>
<ref name="postamble"/>
</optional>
</element>
</define>
<define name="table">
<element name="table">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<optional>
<attribute name="anchor">
<data type="ID"/>
</attribute>
</optional>
<optional>
<attribute name="pn"/>
</optional>
<optional>
<ref name="name"/>
</optional>
<zeroOrMore>
<ref name="iref"/>
</zeroOrMore>
<optional>
<ref name="thead"/>
</optional>
<oneOrMore>
<ref name="tbody"/>
</oneOrMore>
<optional>
<ref name="tfoot"/>
</optional>
</element>
</define>
<define name="preamble">
<element name="preamble">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<zeroOrMore>
<choice>
<text/>
<ref name="bcp14"/>
<ref name="cref"/>
<ref name="em"/>
<ref name="eref"/>
<ref name="iref"/>
<ref name="relref"/>
<ref name="spanx"/>
<ref name="strong"/>
<ref name="sub"/>
<ref name="sup"/>
<ref name="tt"/>
<ref name="xref"/>
</choice>
</zeroOrMore>
</element>
</define>
<define name="artwork">
<element name="artwork">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<optional>
<attribute name="anchor">
<data type="ID"/>
</attribute>
</optional>
<optional>
<attribute name="pn"/>
</optional>
<optional>
<attribute name="xml:space"/>
</optional>
<optional>
<attribute name="name" a:defaultValue=""/>
</optional>
<optional>
<attribute name="type" a:defaultValue=""/>
</optional>
<optional>
<attribute name="src"/>
</optional>
<optional>
<attribute name="align" a:defaultValue="left">
<choice>
<value>left</value>
<value>center</value>
<value>right</value>
</choice>
</attribute>
</optional>
<optional>
<attribute name="alt" a:defaultValue=""/>
</optional>
<optional>
<attribute name="width" a:defaultValue=""/>
</optional>
<optional>
<attribute name="height" a:defaultValue=""/>
</optional>
<optional>
<attribute name="originalSrc"/>
</optional>
<choice>
<zeroOrMore>
<text/>
</zeroOrMore>
<externalRef href='./svg.rng'/>
</choice>
</element>
</define>
<!-- https://www.rfc-editor.org/materials/format/SVG-1.2-RFC.rnc -->
<define name="sourcecode">
<element name="sourcecode">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<optional>
<attribute name="anchor">
<data type="ID"/>
</attribute>
</optional>
<optional>
<attribute name="pn"/>
</optional>
<optional>
<attribute name="name" a:defaultValue=""/>
</optional>
<optional>
<attribute name="type" a:defaultValue=""/>
</optional>
<optional>
<attribute name="src"/>
</optional>
<optional>
<attribute name="originalSrc"/>
</optional>
<text/>
</element>
</define>
<define name="thead">
<element name="thead">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<optional>
<attribute name="anchor">
<data type="ID"/>
</attribute>
</optional>
<oneOrMore>
<ref name="tr"/>
</oneOrMore>
</element>
</define>
<define name="tbody">
<element name="tbody">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<optional>
<attribute name="anchor">
<data type="ID"/>
</attribute>
</optional>
<oneOrMore>
<ref name="tr"/>
</oneOrMore>
</element>
</define>
<define name="tfoot">
<element name="tfoot">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<optional>
<attribute name="anchor">
<data type="ID"/>
</attribute>
</optional>
<oneOrMore>
<ref name="tr"/>
</oneOrMore>
</element>
</define>
<define name="tr">
<element name="tr">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<optional>
<attribute name="anchor">
<data type="ID"/>
</attribute>
</optional>
<oneOrMore>
<choice>
<ref name="td"/>
<ref name="th"/>
</choice>
</oneOrMore>
</element>
</define>
<define name="td">
<element name="td">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<optional>
<attribute name="anchor">
<data type="ID"/>
</attribute>
</optional>
<optional>
<attribute name="colspan" a:defaultValue="0"/>
</optional>
<optional>
<attribute name="rowspan" a:defaultValue="0"/>
</optional>
<optional>
<attribute name="align" a:defaultValue="left">
<choice>
<value>left</value>
<value>center</value>
<value>right</value>
</choice>
</attribute>
</optional>
<choice>
<oneOrMore>
<choice>
<ref name="artwork"/>
<ref name="dl"/>
<ref name="figure"/>
<ref name="ol"/>
<ref name="sourcecode"/>
<ref name="t"/>
<ref name="ul"/>
</choice>
</oneOrMore>
<zeroOrMore>
<choice>
<text/>
<ref name="bcp14"/>
<ref name="br"/>
<ref name="cref"/>
<ref name="em"/>
<ref name="eref"/>
<ref name="iref"/>
<ref name="relref"/>
<ref name="strong"/>
<ref name="sub"/>
<ref name="sup"/>
<ref name="tt"/>
<ref name="xref"/>
</choice>
</zeroOrMore>
</choice>
</element>
</define>
<define name="th">
<element name="th">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<optional>
<attribute name="anchor">
<data type="ID"/>
</attribute>
</optional>
<optional>
<attribute name="colspan" a:defaultValue="0"/>
</optional>
<optional>
<attribute name="rowspan" a:defaultValue="0"/>
</optional>
<optional>
<attribute name="align" a:defaultValue="left">
<choice>
<value>left</value>
<value>center</value>
<value>right</value>
</choice>
</attribute>
</optional>
<choice>
<oneOrMore>
<choice>
<ref name="artwork"/>
<ref name="dl"/>
<ref name="figure"/>
<ref name="ol"/>
<ref name="sourcecode"/>
<ref name="t"/>
<ref name="ul"/>
</choice>
</oneOrMore>
<zeroOrMore>
<choice>
<text/>
<ref name="bcp14"/>
<ref name="br"/>
<ref name="cref"/>
<ref name="em"/>
<ref name="eref"/>
<ref name="iref"/>
<ref name="relref"/>
<ref name="strong"/>
<ref name="sub"/>
<ref name="sup"/>
<ref name="tt"/>
<ref name="xref"/>
</choice>
</zeroOrMore>
</choice>
</element>
</define>
<define name="postamble">
<element name="postamble">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<zeroOrMore>
<choice>
<text/>
<ref name="cref"/>
<ref name="eref"/>
<ref name="iref"/>
<ref name="spanx"/>
<ref name="xref"/>
</choice>
</zeroOrMore>
</element>
</define>
<define name="texttable">
<element name="texttable">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<optional>
<attribute name="anchor">
<data type="ID"/>
</attribute>
</optional>
<optional>
<attribute name="title" a:defaultValue=""/>
</optional>
<optional>
<attribute name="suppress-title" a:defaultValue="false">
<choice>
<value>true</value>
<value>false</value>
</choice>
</attribute>
</optional>
<optional>
<attribute name="align" a:defaultValue="center">
<choice>
<value>left</value>
<value>center</value>
<value>right</value>
</choice>
</attribute>
</optional>
<optional>
<attribute name="style" a:defaultValue="full">
<choice>
<value>all</value>
<value>none</value>
<value>headers</value>
<value>full</value>
</choice>
</attribute>
</optional>
<optional>
<ref name="name"/>
</optional>
<optional>
<ref name="preamble"/>
</optional>
<oneOrMore>
<ref name="ttcol"/>
</oneOrMore>
<zeroOrMore>
<ref name="c"/>
</zeroOrMore>
<optional>
<ref name="postamble"/>
</optional>
</element>
</define>
<define name="ttcol">
<element name="ttcol">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<optional>
<attribute name="width"/>
</optional>
<optional>
<attribute name="align" a:defaultValue="left">
<choice>
<value>left</value>
<value>center</value>
<value>right</value>
</choice>
</attribute>
</optional>
<zeroOrMore>
<choice>
<ref name="cref"/>
<ref name="eref"/>
<ref name="iref"/>
<ref name="xref"/>
<text/>
</choice>
</zeroOrMore>
</element>
</define>
<define name="c">
<element name="c">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<zeroOrMore>
<choice>
<text/>
<ref name="cref"/>
<ref name="eref"/>
<ref name="iref"/>
<ref name="spanx"/>
<ref name="xref"/>
</choice>
</zeroOrMore>
</element>
</define>
<define name="bcp14">
<element name="bcp14">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<text/>
</element>
</define>
<define name="br">
<element name="br">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<empty/>
</element>
</define>
<define name="back">
<element name="back">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<zeroOrMore>
<ref name="displayreference"/>
</zeroOrMore>
<zeroOrMore>
<ref name="references"/>
</zeroOrMore>
<zeroOrMore>
<ref name="section"/>
</zeroOrMore>
</element>
</define>
<define name="displayreference">
<element name="displayreference">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<attribute name="target">
<data type="IDREF"/>
</attribute>
<attribute name="to"/>
</element>
</define>
<define name="references">
<element name="references">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<optional>
<attribute name="pn"/>
</optional>
<optional>
<attribute name="anchor">
<data type="ID"/>
</attribute>
</optional>
<optional>
<attribute name="title"/>
</optional>
<optional>
<ref name="name"/>
</optional>
<zeroOrMore>
<choice>
<ref name="reference"/>
<ref name="referencegroup"/>
</choice>
</zeroOrMore>
</element>
</define>
<define name="reference">
<element name="reference">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<attribute name="anchor">
<data type="ID"/>
</attribute>
<optional>
<attribute name="target"/>
</optional>
<optional>
<attribute name="quoteTitle" a:defaultValue="true">
<choice>
<value>true</value>
<value>false</value>
</choice>
</attribute>
</optional>
<ref name="front"/>
<zeroOrMore>
<choice>
<ref name="annotation"/>
<ref name="format"/>
<ref name="refcontent"/>
<ref name="seriesInfo"/>
</choice>
</zeroOrMore>
</element>
</define>
<define name="referencegroup">
<element name="referencegroup">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<attribute name="anchor">
<data type="ID"/>
</attribute>
<oneOrMore>
<ref name="reference"/>
</oneOrMore>
</element>
</define>
<define name="seriesInfo">
<element name="seriesInfo">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<attribute name="name"/>
<attribute name="value"/>
<optional>
<attribute name="asciiName"/>
</optional>
<optional>
<attribute name="asciiValue"/>
</optional>
<optional>
<attribute name="status"/>
</optional>
<optional>
<attribute name="stream" a:defaultValue="IETF">
<choice>
<value>IETF</value>
<value>IAB</value>
<value>IRTF</value>
<value>independent</value>
</choice>
</attribute>
</optional>
<empty/>
</element>
</define>
<define name="format">
<element name="format">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<optional>
<attribute name="target"/>
</optional>
<attribute name="type"/>
<optional>
<attribute name="octets"/>
</optional>
<empty/>
</element>
</define>
<define name="annotation">
<element name="annotation">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<zeroOrMore>
<choice>
<text/>
<ref name="bcp14"/>
<ref name="cref"/>
<ref name="em"/>
<ref name="eref"/>
<ref name="iref"/>
<ref name="relref"/>
<ref name="spanx"/>
<ref name="strong"/>
<ref name="sub"/>
<ref name="sup"/>
<ref name="tt"/>
<ref name="xref"/>
</choice>
</zeroOrMore>
</element>
</define>
<define name="refcontent">
<element name="refcontent">
<optional>
<attribute name="xml:base"/>
</optional>
<optional>
<attribute name="xml:lang"/>
</optional>
<zeroOrMore>
<choice>
<text/>
<ref name="bcp14"/>
<ref name="em"/>
<ref name="strong"/>
<ref name="sub"/>
<ref name="sup"/>
<ref name="tt"/>
</choice>
</zeroOrMore>
</element>
</define>
<start combine="choice">
<ref name="rfc"/>
</start>
</grammar>