<content>

<content> (content model) contains a declaration of the intended content model for the element (or other construct) being specified. [22.5 Element Specifications]
Module tagdocs — Documentation Elements
Attributes
autoPrefix⚓︎ controls whether or not pattern names generated in the corresponding RELAX NG schema source are automatically prefixed to avoid potential nameclashes.
Status Optional
Datatype teidata.truthValue
Legal values are:
true
Each name referenced in e.g. an <rng:ref> element within a content model is automatically prefixed by the value of the prefix attribute on the current schemaSpec [Default]
false
No prefixes are added: any prefix required by the value of the prefix attribute on the current schemaSpec must therefore be supplied explicitly, as appropriate.
Contained by
tagdocs: dataSpec elementSpec macroSpec moduleRef
May contain ANY
Example

This sample content element indicates that the element being specified has no content:

<content>
 <empty/>
</content>
Example

This content element defines a content model, expressed directly in the TEI ODD language, that allows either a sequence of paragraphs or a series of msItem elements optionally preceded by a summary:

<content>
 <alternate>
  <classRef key="model.pLike"
   maxOccurs="unbounded"/>
  <sequence>
   <elementRef key="summary" minOccurs="0"
    maxOccurs="1"/>
   <elementRef key="msItem"
    maxOccurs="unbounded"/>
  </sequence>
 </alternate>
</content>
Example

This sample content element defines a content model, expressed in the RELAX NG schema language, that allows either a sequence of paragraphs or a series of msItem elements optionally preceded by a summary:

<content>
 <rng:choice>
  <rng:oneOrMore>
   <rng:ref name="model.pLike"/>
  </rng:oneOrMore>
  <rng:group>
   <rng:optional>
    <rng:ref name="summary"/>
   </rng:optional>
   <rng:oneOrMore>
    <rng:ref name="msItem"/>
   </rng:oneOrMore>
  </rng:group>
 </rng:choice>
</content>
Schematron A temporary constraint to give users a warning that in the future the content of content will be restricted to 1 and only 1 child element.

<sch:rule context="tei:content[ *[2] ]">
<sch:let name="tot_kids" value="count( * )"/>
<sch:let name="tei_kids"
 value="count( tei:* )"/>
<sch:let name="rng_kids"
 value="count( rng:* | rna:* )"/>
<sch:let name="msg_part01"
 value="'In the near future the <content> element will be limited to 1 and only 1 child element. '"/>
<sch:let name="msg_part02"
 value="'This <content> element is in '"/>
<sch:let name="msg_part03"
 value="if ( local-name(..) eq 'elementSpec' ) then 'an ' else 'a '"/>
<sch:let name="msg_part04"
 value="concat( local-name(..), ' with ' )"/>
<sch:let name="msg_part05"
 value="if ( parent::tei:moduleRef/@key ) then 'a @key' else ''"/>
<sch:let name="msg_part06"
 value="if ( parent::tei:moduleRef/@url ) then 'a @url' else ''"/>
<sch:let name="msg_part07"
 value="if ( parent::tei:*/@ident ) then 'an @ident' else ''"/>
<sch:let name="msg_part08" value="' of "'"/>
<sch:let name="msg_part09"
 value="../@ident | ../@key | ../@url"/>
<sch:let name="msg_part10"
 value="concat('" and has ', $tot_kids, ' children,')"/>
<sch:let name="msgs_1to10"
 value="concat( $msg_part01, $msg_part02, $msg_part03, $msg_part04, $msg_part05, $msg_part06, $msg_part07, $msg_part08, $msg_part09, $msg_part10 )"/>
<sch:report test="$tei_kids eq $tot_kids"
 role="warning">
 <sch:value-of select="$msgs_1to10"/> which could be wrapped in a <sequence> element.
</sch:report>
<sch:report test="$rng_kids eq $tot_kids"
 role="warning">
 <sch:value-of select="$msgs_1to10"/> which could be wrapped in an <rng:div> element.
</sch:report>
<sch:assert test="$tei_kids eq $tot_kids or $rng_kids eq $tot_kids"
 role="warning">
 <sch:value-of select="$msgs_1to10"/> but those children are neither all TEI elements nor
all RELAX NG elements, and thus this <content> is invalid and can not be easily rectified.
</sch:assert>
</sch:rule>
Content model 
<content>
 <alternate>
  <elementRef key="valList" minOccurs="1"
   maxOccurs="1"/>
  <classRef key="model.contentPart"
   minOccurs="1" maxOccurs="unbounded"/>
  <anyElement minOccurs="1"
   maxOccurs="unbounded"
   require="http://relaxng.org/ns/compatibility/annotations/1.0 http://relaxng.org/ns/structure/1.0"/>
 </alternate>
</content>
Schema Declaration 
<rng:element name="content">
 <rng:ref name="att.global.attributes"/>
 <rng:ref name="att.global.rendition.attributes"/>
 <rng:ref name="att.global.linking.attributes"/>
 <rng:ref name="att.global.analytic.attributes"/>
 <rng:ref name="att.global.facs.attributes"/>
 <rng:ref name="att.global.change.attributes"/>
 <rng:ref name="att.global.responsibility.attributes"/>
 <rng:ref name="att.global.source.attributes"/>
 <rng:optional>
  <rng:attribute name="autoPrefix"
   a:defaultValue="true">
   <rng:choice>
    <rng:value>true</rng:value>
    <rng:value>false</rng:value>
   </rng:choice>
  </rng:attribute>
 </rng:optional>
 <rng:choice>
  <rng:ref name="valList"/>
  <rng:oneOrMore>
   <rng:ref name="model.contentPart"/>
  </rng:oneOrMore>
  <rng:oneOrMore>
   <rng:ref name="anyElement_content_3"/>
  </rng:oneOrMore>
 </rng:choice>
</rng:element>
element content
{
   att.global.attributes,
   att.global.rendition.attributes,
   att.global.linking.attributes,
   att.global.analytic.attributes,
   att.global.facs.attributes,
   att.global.change.attributes,
   att.global.responsibility.attributes,
   att.global.source.attributes,
   attribute autoPrefix { "true" | "false" }?,
   ( valList | model.contentPart+ | anyElement_content_3+ )
}