<rt>

<rt> (ルビのテキスト。) 本文の一部と密接な関連を持つ注釈（主に読み方）としてのルビテキストを含む。 [3.4.2 Ruby Annotations]
モジュール core — Elements Available in All TEI Documents
属性
target⚓︎ ルビテキストの対象へのポインタを示す。
状態 任意
データ型 teidata.pointer
Schematron Enforce that either target or both from and to (or none) are used, but not target in combination with either from or to.

<sch:report test="../@from | ../@to">When target= is
present, neither from= nor to= should be.</sch:report>
from⚓︎ ルビテキストの対象範囲の始点を示す。
状態 任意
データ型 teidata.pointer
Schematron Enforce the presence of to iff there is a from.

<sch:assert test="../@to">When from= is present, the to=
attribute of <sch:name/> is required.</sch:assert>
to⚓︎ ルビテキストの対象範囲の終点を示す。
状態 任意
データ型 teidata.pointer
Schematron Enforce the presence of from iff there is a to.

<sch:assert test="../@from">When to= is present, the from=
attribute of <sch:name/> is required.</sch:assert>
上位
core: ruby
下位
analysis: c cl interp interpGrp m pc phr s span spanGrp w
certainty: certainty precision respons
core: abbr add address binaryObject cb choice cit corr date del distinct ellipsis email emph expan foreign gap gb gloss graphic hi index lb measure measureGrp media mentioned milestone name note noteGrp num orig pb ptr q quote ref reg rs ruby said sic soCalled term time title unclear unit
dictionaries: lang oRef pRef
figures: figure formula notatedMusic
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 objectType origDate origPlace secFol signatures stamp watermark width
namesdates: addName affiliation bloc climate country district eventName forename genName geo geogFeat geogName location nameLink objectName offset orgName persName persPronouns placeName population region roleName settlement state surname terrain trait
spoken: incident kinesic pause shift vocal writing
tagdocs: att code gi ident listRef specDesc specList tag val
textcrit: app witDetail
textstructure: floatingText
transcr: addSpan am damage damageSpan delSpan ex fw handShift listTranspose metamark mod redo restore retrace secl space subst substJoin supplied surplus undo
verse: caesura rhyme
character data
解説

Where the place attribute is not provided on the rt element, the default assumption is that the ruby gloss is above where the text is horizontal, and to the right of the text where it is vertical.
例

The word 大統領 daitōryō (president) is glossed character by character in hiragana to provide a pronunciation guide.

<p style="writing-mode: vertical-rl"
 xml:lang="ja">
<!--...-->
 <ruby>
  <rb>大</rb>
  <rt place="right">だい</rt>
 </ruby>
 <ruby>
  <rb>統</rb>
  <rt place="right">とう</rt>
 </ruby>
 <ruby>
  <rb>領</rb>
  <rt place="right">りょう</rt>
 </ruby>
<!--...-->
</p>
Content model 
<content>
 <macroRef key="macro.phraseSeq"/>
</content>
宣言 
<rng:element name="rt">
 <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:ref name="att.typed.attributes"/>
 <rng:ref name="att.placement.attributes"/>
 <rng:ref name="att.transcriptional.attributes"/>
 <rng:ref name="att.editLike.attributes"/>
 <rng:ref name="att.written.attributes"/>
 <rng:optional>
  <rng:attribute name="target">
   <rng:ref name="teidata.pointer"/>
  </rng:attribute>
 </rng:optional>
 <rng:optional>
  <rng:attribute name="from">
   <rng:ref name="teidata.pointer"/>
  </rng:attribute>
 </rng:optional>
 <rng:optional>
  <rng:attribute name="to">
   <rng:ref name="teidata.pointer"/>
  </rng:attribute>
 </rng:optional>
 <rng:ref name="macro.phraseSeq"/>
</rng:element>
element rt
{
   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,
   att.typed.attributes,
   att.placement.attributes,
   att.transcriptional.attributes,
   att.editLike.attributes,
   att.written.attributes,
   attribute target { teidata.pointer }?,
   attribute from { teidata.pointer }?,
   attribute to { teidata.pointer }?,
   macro.phraseSeq
}