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https://issues.apache.org/jira/browse/XERCESJ-1357?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Navaneet Kumar updated XERCESJ-1357:
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Description:
I have a pattern in my Schema:
<xsd:simpleType name="ElsterString">
<xsd:annotation>
<xsd:documentation> Alphanumeric and ".", "-", "_".
</xsd:documentation>
</xsd:annotation>
<xsd:restriction base="xsd:string">
<xsd:pattern value="(([A-Za-z0-9]|\-|\.|_)+((
)*([A-Za-z0-9]|\-|\.|_)+)*)?"/>
</xsd:restriction>
</xsd:simpleType>
Th pattern is trying to force this rule:
no characters other than letters and numbers and -, . and _. And no white
spaces at the ends. White space is allowed in the middle.
When I try and parse it against a document, the parser hangs some times. Longer
strings appear to cause the hang more frequently.
I was validating this string (it has a space in the end which is not allowed
by the pattern)
Name="aPipeTest_LANPerformance sksksk sksksk sksksk "
This string caused the parser to hang. I can use longer strings and get the
parser to hang at will.
was:
I have a pattern in my Schema:
<xsd:simpleType name="ElsterString">
<xsd:annotation>
<xsd:documentation> Alphanumeric and ".", "-", "_".
</xsd:documentation>
</xsd:annotation>
<xsd:restriction base="xsd:string">
<xsd:pattern value="(([A-Za-z0-9]|\-|\.|_)+((
)*([A-Za-z0-9]|\-|\.|_)+)*)?"/>
</xsd:restriction>
</xsd:simpleType>
Th pattern is trying to force this rule:
no characters other than letters and numbers and -, . and _. And no white
spaces at the end. White space is allowed in the middle.
When I try and parse it against a document, the parser hangs some times. Longer
strings appear to cause the hang more frequently.
I was validating this string:
Name="aPipeTest_LANPerformance sksksk sksksk sksksk "
This string caused the parser to hang. I can use longer strings and get the
parser to hang at will.
> pattern causes the parser to hang
> ---------------------------------
>
> Key: XERCESJ-1357
> URL: https://issues.apache.org/jira/browse/XERCESJ-1357
> Project: Xerces2-J
> Issue Type: Bug
> Components: SAX
> Affects Versions: 2.9.1
> Environment: Windows XP
> Reporter: Navaneet Kumar
> Priority: Critical
>
> I have a pattern in my Schema:
> <xsd:simpleType name="ElsterString">
> <xsd:annotation>
> <xsd:documentation> Alphanumeric and ".", "-", "_".
> </xsd:documentation>
> </xsd:annotation>
> <xsd:restriction base="xsd:string">
> <xsd:pattern value="(([A-Za-z0-9]|\-|\.|_)+((
> )*([A-Za-z0-9]|\-|\.|_)+)*)?"/>
> </xsd:restriction>
> </xsd:simpleType>
> Th pattern is trying to force this rule:
> no characters other than letters and numbers and -, . and _. And no white
> spaces at the ends. White space is allowed in the middle.
> When I try and parse it against a document, the parser hangs some times.
> Longer strings appear to cause the hang more frequently.
> I was validating this string (it has a space in the end which is not allowed
> by the pattern)
> Name="aPipeTest_LANPerformance sksksk sksksk sksksk "
> This string caused the parser to hang. I can use longer strings and get the
> parser to hang at will.
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