R-helpers,

I have a vector of character strings in which I would like to replace each
parenthetical phrase with a single space, " ".  For example if I start with
x, I would like to end up with y.

x <- c("My toast=bog(keep=3 no=4) and eggs(er34)omit=32",
"dogs have ears",
"cats have tails (and ears, too!)")

y <- c("My toast=bog  and eggs omit=32",
"dogs have ears",
"cats have tails  ")

I'm guessing that this can be done with gsub(), but I have never mastered
the mysteries of regular expressions.

I would greatly appreciate any pointers.

Thanks.

Jean

P.S.  I'm using R version 2.15.2 on Windows 7.

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