in reply to Re: trimming space from both sides of a string
in thread trimming space from both sides of a string

It seems likely (without benchmarking) that those two substitutions (s/^\s.*//; s/\s.*$//;) are very efficient at removing leading and trailing white space. However the side effect of removing everything if there is leading or trailing white space may be too much of a price to pay for "efficiency"!

True laziness is hard work

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Re^3: trimming space from both sides of a string
by mr_mischief (Monsignor) on Oct 16, 2010 at 16:04 UTC
    oh! Right! No dot in there. s/^\s*//; s/\s*$//; instead of course. s/^\s+//; s/\s+$//; should work as well.
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      s/^\s+//; s/\s+$//; works better than s/^\s*//; s/\s*$//;.

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