June 2002
Intermediate to advanced
396 pages
11h 8m
English
Content preview from XML SchemaBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Name
xs:hexBinary — Binary contents coded in hexadecimal.
Derived from:
xs:anySimpleType
Primary:
xs:hexBinary
Known subtypes:
none
Facets:
xs:enumeration, xs:length, xs:maxLength, xs:minLength, xs:pattern, xs:whiteSpace
<xs:simpleType name="hexBinary" id="hexBinary">
<xs:restriction base="xs:anySimpleType">
<xs:whiteSpace value="collapse" fixed="true"/>
</xs:restriction>
</xs:simpleType>Description
The value space of xs:hexBinary is the set of all
binary contents; its lexical space is a simple coding of each octet
as its hexadecimal value.
Restrictions
This datatype should not be confused with another encoding called BinHex that is not supported by W3C XML Schema. Other popular binary text encodings (such as uuXXcode, Quote Printable, BinHex, aencode, or base85, to name few) are not supported by the W3C XML Schema.
The expansion factor is high since each binary octet is coded as two characters (i.e., four octets if the document is encoded with UTF-16).
Example
A UTF-8 XML header such as:
"<?xml version="1.0" encoding="UTF-8"?>"
encoded would be:
"3f3c6d78206c657673726f693d6e3122302e20226e656f636964676e223d54552d4622383e3f"
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.