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https://github.com/sharkdp/bat
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a19593b383
1. Added `Deserialize` derive and `#[serde(try_from = "RawMatcher")]` to the `Matcher` struct. With `try_from`, serde generates a `Deserialize` impl that first deserializes into `RawMatcher`, then calls `TryFrom<RawMatcher> for Matcher`. It never attempts to deserialize `Matcher`'s fields directly, so `Case` and `MatcherSegment` don't need `Deserialize` impls. 2. Replaced the manual `impl<'de> serde::Deserialize<'de> for Matcher` with a standard `impl TryFrom<RawMatcher> for Matcher`. The logic is identical - the conversion is fallible because `Matcher::from_str` returns `Result<_, anyhow::Error>`, so `try_from` (not `from`) is the correct choice, avoiding any panics. The net effect: same behavior, same error handling, but using the idiomatic serde pattern instead of a manual deserializer impl. The `RawMatcher` intermediate type and its `#[serde(untagged)]` derive remain unchanged.