`xPointer` | (extended-pointer elements) groups elements which use the TEI extended pointer mechanism to point at locations which have no SGML ID.

Attributes:

`doc` | (document or file) specifies the document within which the desired location is to be found.
| Datatype: ENTITY
| Values: The name of a system entity associated with the document within which the target of this extended pointer is to be found, by default the current document.
| Default: #IMPLIED

Example:

     <xptr doc='Chap2' from='id (e23)'>

Note | The system entity named by this attribute must be declared (as a SUBDOC entity or a non-SGML entity) in the DTD of the document containing the extended pointer.

`from` | specifies the start of the destination of the pointer, as an expression in the TEI extended-pointer notation described in section 14.2 .
| Datatype: %extPtr;
| Values: The value specified must be a valid expression in the TEI extended pointer notation defined in section 14.2 .
| Default: "ROOT"

Example:

Note | If no value is specified, the target is the whole of the document identified by the `doc` attribute.
`to` | specifies the endpoint of the destination of the pointer, as an expression in the TEI extended pointer notation.
| Datatype: %extPtr;
| Values: The value specified must be a valid expression in the TEI extended pointer notation defined in section 14.2 .
| Default: "DITTO"

Example:

     <xptr doc=OrbisPictus from='id (animalia)'
           to='id (aquaticae)'>

Note

This attribute may only be supplied if the `from` attribute is also supplied, in which case the destination is defined to extend from the beginning of the location specified by the `from` attribute, up to the end of that specified by the `to` attribute. It is an error for the `to` attribute to specify a location whose end precedes the beginning of the location specified by `from` ; it is not an error for the scopes to overlap.

If no value is specified, the target is the location specified by the `from` attribute.

Note

This class belongs to the larger class pointer, which means its elements also inherit the attributes of that class.

Tagset additional tag set for
Class pointer
Filename `teiclas2.ent`
Parents[none]
Members xptr xref
Declaration `<!ENTITY % a.xPointer ' %a.global %a.pointer doc ENTITY #IMPLIED from %extPtr; "ROOT" to %extPtr; "DITTO"' >`
See 14.2

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