RegularExpression does not use MemoryManager correctly.
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         Key: XERCESC-1389
         URL: http://issues.apache.org/jira/browse/XERCESC-1389
     Project: Xerces-C++
        Type: Bug
  Components: Utilities  
    Versions: 2.6.0    
 Environment: All
    Reporter: David Bertoni
    Priority: Critical
 Attachments: patch.txt

Under certain circumstances, creating a RegularExpression will result in memory 
being allocated and potentially de-allocated correctly.  There are two problems:

1. Memory is allocated from the global heap for instances of BMPattern.

2. Memory for a string is allocated from the global MemoryManager instance, but 
de-allocated using an instance-specific MemoryManager instance.

I will attach a patch for the problems.

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