Cargo Features

chrono-tz-build has no features set by default.

[dependencies]
chrono-tz-build = { version = "0.4.0", features = ["filter-by-regex", "case-insensitive", "regex"] }
filter-by-regex = regex
case-insensitive = uncased

Enables uncased of phf_shared

needed only to forward feature for uncased

regex filter-by-regex?

Enables regex

Features from optional dependencies

In crates that don't use the dep: syntax, optional dependencies automatically become Cargo features. These features may have been created by mistake, and this functionality may be removed in the future.

uncased case-insensitive?
phf_shared case-insensitive?