data.key
| data.key 任意の識別子により属性値の範囲が定義される．典型例は，外部で定義され ているものから値がとられる． | |
| モジュール | tei — 1 The TEI Infrastructure |
| 宣言 | data.key = string |
| 解説 | Information about the set of possible values for an attribute using this datatype
may (but need not) be documented in the document
header. Externally defined
constraints, for example that values should be legal keys in an
external database system, cannot usually be enforced by a TEI
system. Similarly, because the key is externally defined, no constraint
other than a requirement that it consist of Unicode characters is
possible. |