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Re^3: Performance Trap - Opening/Closing Files Inside a Loop

by tachyon (Chancellor)
on Dec 11, 2004 at 00:27 UTC ( #414020=note: print w/replies, xml ) Need Help??


in reply to Re^2: Performance Trap - Opening/Closing Files Inside a Loop
in thread Performance Trap - Opening/Closing Files Inside a Loop

While you are correct that accessing key value pairs with each is a little faster this is unlikely to influence runtime in any measurable way as the output bottleneck lies with the OS and disk IO.

cheers

tachyon

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[ovedpo15]: consider the following format of strings: some_data-doesn't- matter,value. how I get the value with regex? it should be after the last comma (last string)
[Corion]: Text::CSV_XS for all your CSV file parsing needs. Other than that, what problems do you have with perlre, and capturing everything after the comma? Also, index and substr would also work.
[choroba]: my ($value) = $string =~ /.*,(.*)/

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