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17 lines
641 B
Rust
17 lines
641 B
Rust
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use std::collections::HashMap;
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use std::hash::BuildHasherDefault;
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use fxhash::FxHasher32;
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use slice_group_by::StrGroupBy;
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pub type FastMap4<K, V> = HashMap<K, V, BuildHasherDefault<FxHasher32>>;
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pub type SmallString32 = smallstr::SmallString<[u8; 32]>;
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pub type SmallVec32 = smallvec::SmallVec<[u8; 32]>;
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pub type BEU32 = heed::zerocopy::U32<heed::byteorder::BE>;
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pub type DocumentId = u32;
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pub fn alphanumeric_tokens(string: &str) -> impl Iterator<Item = &str> {
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let is_alphanumeric = |s: &&str| s.chars().next().map_or(false, char::is_alphanumeric);
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string.linear_group_by_key(|c| c.is_alphanumeric()).filter(is_alphanumeric)
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}
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