Hi all,
Working on some SAS program conversions, I was testing this (3.4.0 Windows, but
also 2.10.1 MacOsX):
gsub("b?","!","abc",perl=T)
which returns
[1] "!a!c!"
that I didn't understand.
Unfortunately, asked for the same thing SAS 9.4 replies : "!a!!c!", and so does
Perl (Strawberry 5.26), a more logical answer for me.
Is there some problem with PCRE or some subtility that I didn't catch?
Results are similar with * instead of ?
and there is a similar issue with the lazy operator:
gsub("b??","!","abc",perl=T) gives : "!a!b!c!", while the other softwares give
"!a!!!c!"
Thanks
Jean-Luc LIPATZ
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