Hi, I want to use the default value option with StrSubstitutor (https://issues.apache.org/jira/browse/LANG-893) soon. I already uploaded a patch file for that in the issue.
The patch is just checking the temporarily resolved variable name to see if there's any default value configuration. The default value delimiter is configurable as discussed. And, the patch includes unit test fixes for it, too.Could someone please review it? Thanks in advance, Woonsan
