Paul Rubin no.email at nospam.invalid
Sat Aug 18 23:10:35 EDT 2012

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Chris Angelico <rosuav at gmail.com> writes:
> Sure, four characters isn't a big deal to step through. But it still
> makes indexing and slicing operations O(N) instead of O(1), plus you'd
> have to zark the whole string up to where you want to work.

I know some systems chop the strings into blocks of (say) a few
hundred chars, so you can immediately get to the correct
block, then scan into the block to get to the desired char offset.

> I don't have a Python example of parsing a huge string, but I've done
> it in other languages, and when I can depend on indexing being a cheap
> operation, I'll happily do exactly that.

I'd be interested to know what the context was, where you parsed
a big unicode string in a way that required random access to
the nth character in the string.

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