I've just committed (r49747) some changes that should fix the
re-entrancy bug Mark reported the other day. The problem was that R
reads some files (e.g. Mark's .Rprofile) in a read-eval-print loop, and
only parses them a few lines at a time. This means that within that
loop, one of the evals could cause it to start parsing something else.
One of the changes I put in a few days ago got confused by this.
Hopefully the latest change hasn't introduced a new bug...
BTW, one of the effects of this change is that a syntax error in
.Rprofile should now be reported on the correct line number. In R 2.9.x
the line number was relative to the current statement, so it was pretty
meaningless.
Duncan Murdoch
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