XML Schema

Name

xs:normalizedString — Whitespace-replaced strings.

Derived from:

xs:string

Primary:

xs:string

Known subtypes:

xs:token

Facets:

xs:enumeration, xs:length, xs:maxLength, xs:minLength, xs:pattern, xs:whiteSpace

<xs:simpleType name="normalizedString" id="normalizedString">
  <xs:restriction base="xs:string">
    <xs:whiteSpace value="replace"/>
  </xs:restriction>
</xs:simpleType>

Description

The lexical space of xs:normalizedString is unconstrained (any valid XML character may be used), and its value space is the set of strings after whitespace replacement (i.e., after any occurrence of #x9 (tab), #xA (linefeed), and #xD (carriage return) have been replaced by an occurrence of #x20 (space) without any whitespace collapsing).

Restrictions

This is the only datatype that performs whitespace replacement without collapsing. When whitespaces are not significant, xs:token is preferred.

This datatype corresponds to neither the XPath function normalize-space( ) (which performs whitespace trimming and collapsing) nor to the DOM “normalize” method (which is a merge of adjacent text objects).

Example

The value of the element:

<title lang="en">
  Being a Dog Is 
  a Full-Time Job
</title>"

is the string: " Being a Dog Is a Full-Time Job ", where all the whitespaces have been replaced by spaces if the title element is a type xs:normalizedString.