xsd:token — Whitespace-replaced and collapsed strings
<xsd:simpleType name="token” id="token"> <xsd:restriction base="xsd:normalizedString"> <xsd:whiteSpace value="collapse"/> </xsd:restriction> </xsd:simpleType>
The lexical and value spaces of xsd:token
are the
sets of all strings after whitespace replacement; i.e., after any
occurrence of #x9
(tab), #xA
(linefeed), or #xD
(carriage return).These are
replaced by an occurrence of #x20
(space) and
collapsing. Collapsing is when contiguous occurrences of spaces are
replaced by a single space, and leading and trailing spaces are
removed.
More simply, xsd:token
is the most appropriate
datatype to use for strings that don’t care about
whitespace.
The name xsd:token
is misleading, as whitespace is
allowed within xsd:token
.
xsd:NMTOKEN
is the type corresponding to what are
usually called tokens.
The element:
<title lang="en"> Being a Dog Is a Full-Time Job </title>
is a valid xsd:token
, and its value is the string
Being
a
Dog
Is
a
Full-Time
Job
, in which all the
extra whitespace has been replaced by single spaces. Leading and
trailing spaces have been removed, and contiguous sequences of spaces
have been replaced by single spaces.
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