[jira] Resolved: (XERCESC-1816) Multi-character escape classes don't work correctly in regular expressions

["Alberto Massari (JIRA)" <xe...@xml.apache.org>]

     [ https://issues.apache.org/jira/browse/XERCESC-1816?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Alberto Massari resolved XERCESC-1816.
--------------------------------------

       Resolution: Fixed
    Fix Version/s: 3.0.0
         Assignee: Alberto Massari

> 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
>            Assignee: Alberto Massari
>             Fix For: 3.0.0
>
>         Attachments: regex_patch2
>
>
> 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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