An escape mechanism for property interpolation is missing.
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                 Key: MRESOURCES-29
                 URL: http://jira.codehaus.org/browse/MRESOURCES-29
             Project: Maven 2.x Resources Plugin
          Issue Type: New Feature
    Affects Versions: 2.3
            Reporter: Hendrik Schreiber


It would be great, if there was a mechanism that let's you escape a property so 
that it is not replaced by the filtering machism. E.g. in a log4j.xml 
configuration file you might want to preserve ${user.home}, but replace some 
other property like ${log.dir}. Currently there is no convenient way to achieve 
that.

Alternatively to escaping, it would be helpful, if one could choose the token 
format. So, if one could say, only honor @token@ and not ${token} (or the other 
way around) one could easily work around the escape problem.

Workaround for the problem mentioned above:

replace the ${user.home} in log4j.xml with @[EMAIL PROTECTED]@end@ and define   
  start=${    and end=$}   in the property file


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