okay, rust nerds: what's the equivalent of `strtol` in Rust? That is to say, I want to parse decimal, octal, or hexidecimal representations of an integer like a normal person. Do I seriously have to use libc::strtol?

A little more detail: right now I'm using clap to parse the cli. It defaults to using FromStr to parse the int, but of course FromStr doesn't handle hex/octal/etc because of course it doesn't

@hub strtol will interpret the string as hex if it begins with 0x, octal if it begins with 0, decimal otherwise. This doesn't do any such interpretation

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