eval does not load another interpreter nor does
it create another process.
eval is slower than most alternatives so you
try to avoid doing eval inside of a loop or an
oft-used subroutine. But eval isn't so slow
that you should be too afraid to use it. But there are
also plenty of reasons other than performance to not use
eval most of the time.
Back to the question, the speed of " vs. ' inside an
eval would be nearly impossible to detect,
much less being something to worry about. After all,
' still has to check for \\ and \'.
-
tye
(but my friends call me "Tye")
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