Re: Re: Everything BUT

I also like curlies around the grep block - like this:

@allfiles = grep { ! /^1021/ } readdir THEDIR;
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</code>

-- 
Joost       downtime n. The period during which a system
            is error-free and immune from user input.
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Re: Re: Re: Everything BUT by Juerd (Abbot) on Jun 12, 2002 at 16:26 UTC
I also like curlies around the grep block Without curlies, it is not a block. The non-block version of grep is much faster. `2;0 juerd@ouranos:~$ perl -MBenchmark=cmpthese -e'cmpthese(-1, { block + => sub { grep { /[13579]/ } 0..9 }, nonblock => sub { grep /[13579]/ +, 0..9 } })'` [download] Benchmark: running block, nonblock, each for at least 1 CPU seconds... block: 2 wallclock secs ( 1.06 usr + 0.00 sys = 1.06 CPU) @ 44436.79/s (n=47103) nonblock: 0 wallclock secs ( 1.01 usr + 0.00 sys = 1.01 CPU) @ 141940.59/s (n=143360) Rate block nonblock block 44437/s -- -69% nonblock 141941/s 219% -- - Yes, I reinvent wheels. - Spam: Visit eurotraQ.	[reply] [d/l]
Re: Re: Re: Everything BUT by marvell (Pilgrim) on Jun 12, 2002 at 16:19 UTC
Me too, I never leave home without them. In fact, I hardly ever us the comma form of grep or map. -- Steve Marvell	[reply]