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rustfmt
Discontinued Format Rust code [Moved to: https://github.com/rust-lang/rustfmt] (by rust-lang-nursery)
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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
Rustfmt will do that for you using imports_granularity="Crate".
Have you read the book's chapter 7? If so and would the information presented in this issue understand it better? I think the chapter is poorly structured and i understand the authors might be too busy to rewrite it whole alone. However, there was a person seemingly willing to put in some work but was rejected, as was my suggestion of a gradual improvement (really just changing 2 paragraphs) and the issue was closed.
And the splitjoin vim plugin will switch between the two forms interactively.