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XML Schema
book

XML Schema

by Eric van der Vlist
June 2002
Intermediate to advanced content levelIntermediate to advanced
396 pages
11h 8m
English
O'Reilly Media, Inc.
Content preview from 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after whitespace replacement (i.e., after any occurrence of #x9 (tab), #xA (linefeed), and #xD (carriage return) have been replaced by an occurrence of #x20 (space) without any whitespace collapsing).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is the string: " Being a Dog Is a Full-Time Job ", where all the whitespaces have been replaced by spaces if the title element is a type xs:normalizedString.

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Publisher Resources

ISBN: 0596002521Supplemental ContentErrata Page