proc-macro2 • 1.0.89A substitute implementation of the compiler's `proc_macro` API to decouple token-based libraries from the procedural macro use case.
toml • 0.5.11A native Rust encoder and decoder of TOML-formatted files and streams. Provides
implementations of the standard Serialize/Deserialize traits for TOML data to
facilitate deserializing and serializing Rust structures.
INDIRECT
6
unicode-width • 0.1.14Determine displayed width of `char` and `str` types
according to Unicode Standard Annex #11 rules.