Martin Honnen created XERCESJ-1592:
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Summary: schema validation incorrectly treating single character
outside of BMP as two characters
Key: XERCESJ-1592
URL: https://issues.apache.org/jira/browse/XERCESJ-1592
Project: Xerces2-J
Issue Type: Bug
Components: XML Schema 1.0 Datatypes
Affects Versions: 2.11.0
Environment: Windows 7, Oracle Java JRE 1.7
Reporter: Martin Honnen
When validating the instance document
http://home.arcor.de/martin.honnen/xml/oneCharInstance1.xml against the schema
http://home.arcor.de/martin.honnen/xml/oneCharSchema1.xsd Xerces reports the
following validation error(s):
"[Error] oneCharInstance1.xml:3:25: cvc-length-valid: Value '?' with length =
'2'
is not facet-valid with respect to length '1' for type 'one-char'.
[Error] oneCharInstance1.xml:3:25: cvc-type.3.1.3: The value '?' of element
'test' is not valid."
The "test" element however contains a single character
(<test>𐌀</test>), albeit one which is not inside the BMP. In terms of
the XML specification http://www.w3.org/TR/xml/#dt-character and the schema
data type specification http://www.w3.org/TR/xmlschema-2/#string there is no
difference between characters in the BMP and outside of it, each one counts as
a single character.
So the sample XML is valid against the sample schema and Xerces should not
report any error.
Other validating parsers like Saxon 9.4 EE and XSV
(http://www.w3.org/2001/03/webdata/xsv?docAddrs=http%3A%2F%2Fhome.arcor.de%2Fmartin.honnen%2Fxml%2FoneCharInstance1.xml+http%3A%2F%2Fhome.arcor.de%2Fmartin.honnen%2Fxml%2FoneCharSchema1.xsd&warnings=on&keepGoing=on&style=xsl#)
don't report any validation error for the samples named above.
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