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Re^2: Efficient walk/iterate along a string

by aquarium (Curate)
on Nov 23, 2010 at 02:56 UTC ( #873101=note: print w/ replies, xml ) Need Help??

in reply to Re: Efficient walk/iterate along a string
in thread Efficient walk/iterate along a string

i was also going to suggest that maybe refactoring may be possible if more context is known. index or straight regex can be used in a loop to traverse a string, don't know if more efficient or not. using index function with each letter (alphabetically) and incrementing the start index, could also be worth a try, but only if you're ok to traverse the string this way. there's also databases with bitmap indexes, which would allow very fast access to (pre-fetched cache) of particular sequences. but all depends on the semantics of your larger goal. a question that comes to mind, why is each protein sequence processed 20 times?

the hardest line to type correctly is: stty erase ^H

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