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Introduce the maximum_typo helper function

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Kerollmops 2021-02-23 15:50:33 +01:00
parent 1dc857a4b2
commit 6008f528d0
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1 changed files with 10 additions and 0 deletions
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10
milli/src/search/query_tree.rs
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@ -514,6 +514,16 @@ fn create_primitive_query(query: TokenStream) -> PrimitiveQuery {
primitive_query primitive_query
} }
/// Returns the maximum number of typos that this Operation allows.
pub fn maximum_typo(operation: &Operation) -> usize {
use Operation::{Or, And, Query, Consecutive};
match operation {
Or(_, ops) => ops.iter().map(maximum_typo).max().unwrap_or(0),
And(ops) | Consecutive(ops) => ops.iter().map(maximum_typo).sum::<usize>(),
Query(q) => q.kind.typo() as usize,
}
}
#[cfg(test)] #[cfg(test)]
mod test { mod test {
use fst::Set; use fst::Set;