<ptr>

<ptr> 標明一個與其他位置相連結的指標。 3.6 Simple Links and Cross-References 16.1 Links
組件 core — 3 Elements Available in All TEI Documents
除全域屬性以外 att.pointing (@type, @evaluate) att.declaring (@decls)
target 提供一個或多個統一資源識別符參照 (URI References) 來具體說明指標所指的位置。
狀態 必備的
資料類型 1–∞ 次可出現:  

<rng:ref name="data.pointer"/>
data.pointer
以空白鍵隔開
值 One or more syntactically valid URI references, separated by whitespace. Because whitespace is used to separate URIs, no whitespace is permitted inside a single URI. If a whitespace character is required in a URI, it should be escaped with the normal mechanism, e.g. TEI%20Consortium.
cRef (canonical reference) 用元素refsDecl在TEI標頭內所定義的標準參照來說明指標所指位置。
狀態 必備的
資料類型 1–∞ 次可出現:  

<rng:ref name="data.word"/>
data.word
以空白鍵隔開
值 the value of cRef should be constructed so that when the algorithm for the resolution of canonical references (described in section 16.2.5 Canonical References) is applied to it the result is a valid URI reference to the intended target
屬於
altGrp joinGrp linkGrp listRef model.ptrLike
可包含 空白元素
宣告 

<rng:element name="ptr">
 <rng:ref name="att.global.attributes"/>
 <rng:ref name="att.pointing.attributes"/>
 <rng:ref name="att.declaring.attributes"/>
 <rng:choice>
  <rng:attribute name="target">
   <rng:list>
    <rng:oneOrMore>
     <rng:ref name="data.pointer"/>
    </rng:oneOrMore>
   </rng:list>
  </rng:attribute>
  <rng:attribute name="cRef">
   <rng:list>
    <rng:oneOrMore>
     <rng:ref name="data.word"/>
    </rng:oneOrMore>
   </rng:list>
  </rng:attribute>
 </rng:choice>
 <rng:empty/>
</rng:element>
element ptr
{
   att.global.attributes,
   att.pointing.attributes,
   att.declaring.attributes,
   (
      attribute target { list { data.pointer+ } }
    | attribute cRef { list { data.word+ } }
   ),
   empty
}

<s:report test="@target and @cRef">the target and cRef
attributes are mutually exclusive.</s:report>
例子
<ptr target="#p143 #p144"/>
<ptr target="http://www.tei-c.org"/>