From David Morrison <dave@bnl.gov> With the 3.03 series there are changes in the way that TFormula parses it's arguments that have stalled PHENIX's deployment of recent ROOT versions.  In particular, we build up the name of a branch in such a way that the "/" character is a part of the name.  With versions 2.2x through 3.01.x through 3.02.x these names were parsed in such a way that, for instance, a TBrowser could be used to peruse our reconstructed data.  With 3.03, things have changed and a TBrowser seg faults when used to browse one of our existing files.  We have about 100 TB of such files on tape.  Anyway, I'm including a little patch against the CVS HEAD that seems to fix things up.  It offers the ability to use the backslash character to escape the "/" and not have it interpreted as a mathematical operator.
From David Morrison <dave@bnl.gov>
With the 3.03 series there are changes in the way that TFormula parses
it's arguments that have stalled PHENIX's deployment of recent ROOT
versions.  In particular, we build up the name of a branch in such a way
that the "/" character is a part of the name.  With versions 2.2x
through 3.01.x through 3.02.x these names were parsed in such a way
that, for instance, a TBrowser could be used to peruse our reconstructed
data.  With 3.03, things have changed and a TBrowser seg faults when
used to browse one of our existing files.  We have about 100 TB of such
files on tape.  Anyway, I'm including a little patch against the CVS
HEAD that seems to fix things up.  It offers the ability to use the
backslash character to escape the "/" and not have it interpreted as a
mathematical operator.


git-svn-id: acec3fd5b7ea1eb9e79d6329d318e8118ee2e14f@5669 27541ba8-7e3a-0410-8455-c3a389f83636

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