Re: [Boost-bugs] [Boost C++ Libraries] #4721: multiple capture groups with the same name break regex

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #4721: multiple capture groups with the same name break regex
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2010-10-12 20:57:17

#4721: multiple capture groups with the same name break regex
-------------------------------------+--------------------------------------
  Reporter:  robin.snyder@…          |       Owner:  johnmaddock              
      Type:  Bugs                    |      Status:  new                      
 Milestone:  To Be Determined        |   Component:  regex                    
   Version:  Boost 1.44.0            |    Severity:  Problem                  
Resolution:                          |    Keywords:  regex named capture group
-------------------------------------+--------------------------------------

Comment (by anonymous):

 Here is another pattern for testing.

 {{{
 (?<MPAT01>((?<MPAT01.zone>[0-5][0-9]|60)\s*)((?<MPAT01.band>[CcDdEeFfGgHhJjKkLlMmNnPpQqRrSsTtUuVvWwXx])\s*)(?<MPAT01.grid>[AaBbCcDdEeFfGgHhJjKkLlMmNnPpQqRrSsTtUuVvWwXxYyZz][AaBbCcDdEeFfGgHhJjKkLlMmNnPpQqRrSsTtUuVv])\s*(((?<MPAT01.easting>\d{5})\s*(?<MPAT01.northing>\d{5}))|((?<MPAT01.easting>\d{4})\s*(?<MPAT01.northing>\d{4}))|((?<MPAT01.easting>\d{3})\s*(?<MPAT01.northing>\d{3}))))([^\d]|$)
 }}}

 The easting northing pairs cause the first capture groups to be over
 written by the latter ones

 for [[BR]]

 11spa 12345 67890[[BR]]

 11spa 1234 6789[[BR]]

 11spa 123 678[[BR]]


 the last one is the only one that the capture groups work for.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/4721#comment:2>
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