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•Re: peek - output a one-line preview of stdin

by merlyn (Sage)
on Apr 27, 2003 at 20:40 UTC ( #253528=note: print w/ replies, xml ) Need Help??


in reply to peek - output a one-line preview of stdin

my $pad = ' ' x $wide; ... $_ = substr($_ . $pad, 0, $wide); print $_, "\r";
That can be written far more simply and efficiently as:
printf "%-${wide}.${wide}s\r", $_;

-- Randal L. Schwartz, Perl hacker
Be sure to read my standard disclaimer if this is a reply.


Comment on •Re: peek - output a one-line preview of stdin
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Re: peek - use printf
by halley (Prior) on Apr 28, 2003 at 02:58 UTC
    Great tip-- I often forget to use printf, as if moving from C to Perl meant having to leave all of C's methods behind. I have never liked the %#.#s notation of printf... and now I imagine perl6's interpolated hashes may make for some righteous DWIM hacks.

    --
    [ e d @ h a l l e y . c c ]

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