<opener>

<opener> agrupa la fecha, autoria, fórmula introductiva o de saludo o expresiones similares utilizades al inicio de una división textual, especialmente en una carta. 4.2.4 Content of Textual Divisions 4.2 Elements Common to All Divisions
Módulo textstructure — 4 Default Text Structure
Usado por
model.divTopPart
Puede contener
analysis: c cl interp interpGrp m pc phr s span spanGrp w
certainty: certainty precision respons
core: abbr add address binaryObject cb choice corr date del distinct email emph expan foreign gap gloss graphic hi index lb measure measureGrp mentioned milestone name note num orig pb ptr ref reg rs sic soCalled term time title unclear
dictionaries: lang oRef oVar pRef pVar
figures: figure formula
gaiji: g
header: idno
iso-fs: fLib fs fvLib
linking: alt altGrp anchor join joinGrp link linkGrp seg timeline
msdescription: catchwords depth dim dimensions height heraldry locus locusGrp material origDate origPlace secFol signatures stamp watermark width
namesdates: addName affiliation bloc country district forename genName geo geogFeat geogName nameLink offset orgName persName placeName region roleName settlement state surname
spoken: incident kinesic pause shift vocal writing
tagdocs: att code gi ident specDesc specList tag val
textcrit: app witDetail
textstructure: argument byline dateline epigraph salute signed
transcr: addSpan am damage damageSpan delSpan ex fw handShift restore space subst supplied surplus
verse: caesura rhyme
Declaración 

<rng:element name="opener">
 <rng:ref name="att.global.attributes"/>
 <rng:zeroOrMore>
  <rng:choice>
   <rng:text/>
   <rng:ref name="model.gLike"/>
   <rng:ref name="model.phrase"/>
   <rng:ref name="argument"/>
   <rng:ref name="byline"/>
   <rng:ref name="dateline"/>
   <rng:ref name="epigraph"/>
   <rng:ref name="salute"/>
   <rng:ref name="signed"/>
   <rng:ref name="model.global"/>
  </rng:choice>
 </rng:zeroOrMore>
</rng:element>
element opener
{
   att.global.attributes,
   (
      text
    | model.gLike
    | model.phrase
    | argument
    | byline
    | dateline
    | epigraph
    | salute
    | signed
    | model.global
   )*
}
Ejemplo
<opener>
 <dateline>Walden, this 29. of August 1592</dateline>
</opener>
Ejemplo
<opener>
 <dateline>
  <name type="place">Great Marlborough Street</name>
  <date>November 11, 1848</date>
 </dateline>
 <salute>My dear Sir,</salute>
</opener>
<p>I am sorry to say that absence from town and other circumstances have prevented me from
earlier enquiring...</p>