<valDesc>

<valDesc> (屬性值描述) 除了元素datatype所帶有的資訊之外，說明屬性可使用的屬性值在字義或語法上的限制。 22.4.5 Attribute List Specification
組件 tagdocs — 22 Documentation Elements
除全域屬性以外 att.translatable (@version)
mode 標明該宣告在其來源模組中的作用。
狀態 非必備的
合法的值是:
add
該宣告添加在現有定義中 [預設值]
delete
該宣告以及所有子宣告從現有的設定中被移除。
change
該宣告改變在現有定義中名稱相同的宣告。
replace
該宣告代替在現有定義中名稱相同的宣告
屬於
attDef
可包含
analysis: interp interpGrp span spanGrp
certainty: certainty precision respons
core: abbr address cb choice date distinct email emph expan foreign gap gloss index lb measure measureGrp mentioned milestone name note num pb ptr ref rs soCalled term time title
dictionaries: lang
figures: figure
iso-fs: fLib fs fvLib
linking: alt altGrp anchor join joinGrp link linkGrp 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 tag val
textcrit: witDetail
transcr: addSpan am damageSpan delSpan ex fw handShift space subst
宣告 

<rng:element name="valDesc">
 <rng:ref name="att.global.attributes"/>
 <rng:ref name="att.translatable.attributes"/>
 <rng:optional>
  <rng:attribute name="mode" a:defaultValue="add">
   <rng:choice>
    <rng:value>add</rng:value>
    <rng:value>delete</rng:value>
    <rng:value>change</rng:value>
    <rng:value>replace</rng:value>
   </rng:choice>
  </rng:attribute>
 </rng:optional>
 <rng:ref name="macro.phraseSeq.limited"/>
</rng:element>
element valDesc
{
   att.global.attributes,
   att.translatable.attributes,
   attribute mode { "add" | "delete" | "change" | "replace" }?,
   macro.phraseSeq.limited
}
例子
<valDesc>必須指向另一個的邏輯上先於此的元素<gi>align</gi>
</valDesc>