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regex tips #5

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dcarosone opened this issue Mar 27, 2019 · 1 comment
Open

regex tips #5

dcarosone opened this issue Mar 27, 2019 · 1 comment

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@dcarosone
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Two tips for regex usage:

  • you're working with non-utf8 bytes, [u8]; look at the bytes submodule in the Regex crate. This will avoid a bunch of the mess inside each match arm that's trying to conver to strings and back.
  • avoid compiling the regex each time around the loop, using the lazy_static! method noted in the regex docs.
@JamesFysh
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How is lazy_static not part of the standard library at this point?!

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@JamesFysh @dcarosone