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Topics for the formatting chapter #196

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Topics for the formatting chapter#196
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enhancementgood first issue
@japaric

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@japaric
japaric
opened on Jul 23, 2014
  • How to manually implement the Show trait, and access the {} formatter
  • A full list of (formatting) argument types
  • Implementing more than one formatting trait. I think we could reuse the example about the latitude/longitude of a city. We could offer two formats: 12.345° N (floating) and 12° 23' 34" (default).
  • Formatter::pad, important to make {:>5} and {:<3} work on a custom Show implementation.
  • Precision, how to implement {:0.5} and {:0.03}?
  • fmt::Result, what kind of errors could arise from formatting?

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