`ISO-date` | as the declared value of an attribute, indicates that the attribute value should be a legal ISO date in the format defined by ISO 8601:1988, viz. yyyy-mm-dd.
Note | For the SGML parser, this entity has the same effect as specifying a declared value of ``CDATA''. For the user and the application program, however, ``%ISO-date'' documents a restriction which SGML is not currently capable of enforcing. The most prominent examples of this declared value type are the `value` attribute of the `<date>` element in the core tag set, and the `date` attribute of the `<admin>` element in the base tag set for terminology.
Filename | `teiwsd2`
Referenced by |
Declaration | `<!ENTITY % ISO-date` 'CDATA'>
See | 3.8.3

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