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https://issues.apache.org/jira/browse/XERCESC-1816?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12613253#action_12613253
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amassari edited comment on XERCESC-1816 at 7/14/08 12:48 AM:
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>From what I can see, the \c, \C, \i and \I are implemented by the regex parser
>of Xerces-C, but only when you specify that you want to use the regex as
>defined by the XMLSchema specs (implemented in the ParserForXMLSchema.cpp
>file). The code that is listed here is for the "normal" regex, that I guess
>doesn't specify these XML-specific features.
Clearly, it shouldn't hang....
was (Author: amassari):
From what I can see, the \c, \C, \i and \I are implemented by the regex
parser of Xerces-C, but only when you specify that you want to use the regex as
defined by the XMLSchema specs (implemented in the ParserForXMLSchema.cpp
file). The code that is listed here is for the "normal" regex, that I guess
doesn't specify these XML-specific features.
> Multi-character escape classes don't work correctly in regular expressions
> --------------------------------------------------------------------------
>
> Key: XERCESC-1816
> URL: https://issues.apache.org/jira/browse/XERCESC-1816
> Project: Xerces-C++
> Issue Type: Bug
> Components: Validating Parser (XML Schema)
> Affects Versions: 2.8.0, 3.0.0
> Reporter: John Snelson
>
> The regular expressions "\i", "\I", "\c" and "\C" do not work as specified in
> the XML Schema specification:
> http://www.w3.org/TR/xmlschema-2/#nt-MultiCharEsc
> In fact, "\I" and "\C" cause an infinite loop during the parsing of the
> regular expression, "\i" seems to only match the letter "i", and "\c" gives
> the error:
> A character in U+0040-U+005f must follow '\c'.
> I'd be happy to attempt to fix this bug, but I need some guidance as to what
> the code for "\c" is actually meant to be doing.
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