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Re^2: String/Numeric Manipulation

by Elgon (Curate)
on Oct 07, 2004 at 18:56 UTC ( #397402=note: print w/ replies, xml ) Need Help??


in reply to Re: String/Numeric Manipulation
in thread String/Numeric Manipulation

Random_Walk,

A minor nit. If I've understood the code correctly, you've used a substitution...

$days = s/+//;

...where a transliteration would be "better"...

$days = tr/+//d;    # Note transobliteration modifier

...and a lot faster (not that this is really an issue in this case.)Unless you wanted to allow only a leading + in which case...

$days = s/^+//;

Elgon

It is better wither to be silent, or to say things of more value than silence. Sooner throw a pearl at hazard than an idle or useless word; and do not say a little in many words, but a great deal in a few.

Pythagoras (582 BC - 507 BC)


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Re^3: String/Numeric Manipulation
by Random_Walk (Parson) on Oct 08, 2004 at 12:05 UTC

    You are right tr would have been more efficient for what I did but I really should have put s/^+//; to follow the principle of least surprise so that 2+3 would be rejected rather than converted to 23

    Cheers,
    R.

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