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From "Michael Glavassevich (JIRA)" <xerces-j-...@xml.apache.org>
Subject [jira] Updated: (XERCESJ-1388) RegEx matching: when computing backreferences, "\dd" must match group "dd" if group exists
Date Sat, 01 Aug 2009 04:02:14 GMT

     [ https://issues.apache.org/jira/browse/XERCESJ-1388?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Michael Glavassevich updated XERCESJ-1388:
------------------------------------------

    Issue Type: New Feature  (was: Bug)

> RegEx matching: when computing backreferences, "\dd" must match group "dd" if group exists
> ------------------------------------------------------------------------------------------
>
>                 Key: XERCESJ-1388
>                 URL: https://issues.apache.org/jira/browse/XERCESJ-1388
>             Project: Xerces2-J
>          Issue Type: New Feature
>          Components: Other
>    Affects Versions: 2.9.1
>            Reporter: Radu Preotiuc-Pietro
>
> When dealing with back-references to groups >= 10, "\" followed by more than one digit
must match the largest number, smaller than the total number of groups, that can be constructed
by dropping digits from the right.
> So,  for instance, \11 must match the 11th capturing group of the expression "^ (#)(a)(b)(c)(d)(e)(f)(g)(h)(i)(j)\11",
because there are 11 capturing groups; it must not match the first capturing group ant then
the digit "1".

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