Name
xs:maxLength — Facet to define a maximum length.
Synopsis
<xs:maxLength fixed = xs:boolean : “false” id = xs:ID value = xs:nonNegativeInteger {any attributes with non-schema namespace} > Content: (xs:annotation?) </xs:maxLength>
May be included in: xs:restriction (simple type), xs:restriction (simple content)
May be used as facet for:xs:anyURI, xs:base64Binary, xs:ENTITIES, xs:ENTITY, xs:hexBinary, xs:ID, xs:IDREF, xs:IDREFS, xs:language, xs:Name, xs:NCName, xs:NMTOKEN, xs:NMTOKENS, xs:normalizedString, xs:NOTATION, xs:QName, xs:string, xs:token
Description
xs:maxLength
is a facet that allows the definition
of the maximum length expressed in a unit that depends on the
datatype. For most of the datatypes, the unit is a character as
defined in the XML 1.0 Recommendation (i.e., Unicode characters
defined by ISO/IEC 10646 that may be represented on more than 8
bits). The exceptions are the binary datatypes
(xs:hexBinary
and
xs:base64Binary
), for which lengths are expressed
in number of bytes (8 bits) of binary data, and all the list
datatypes, for which lengths are expressed in number of list items.
xs:maxLength
constrains the value space. In
practice, this means that it is checked after whitespace replacement
and collapsing, as defined by the xs:whiteSpace
facet.
Restrictions
This is a logical length, which often has no direct relation to the size of storage needed for the value.
It is forbidden to define both xs:maxLength
and
xs:length
in the same restriction step. Although not ...
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