implement extraction of query ngrams#139
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Pull request overview
Adds streaming query-time sparse n-gram extraction for future Blackbird integration.
Changes:
- Introduces cloneable, drainable
QueryGramsstate with case folding and tests. - Adds packed-window n-gram construction.
- Adds end indices to existing extractors and updates documentation and benchmarks.
Show a summary per file
| File | Description |
|---|---|
crates/sparse-ngrams/src/query.rs |
Implements streaming query extraction and tests. |
crates/sparse-ngrams/src/ngram.rs |
Adds masked-window construction. |
crates/sparse-ngrams/src/lib.rs |
Exports QueryGrams. |
crates/sparse-ngrams/src/extract.rs |
Adds callback end indices. |
crates/sparse-ngrams/README.md |
Updates callback example. |
crates/sparse-ngrams/Cargo.toml |
Adds casefold. |
crates/sparse-ngrams/benchmarks/performance.rs |
Updates benchmark callbacks. |
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- Files reviewed: 7/7 changed files
- Comments generated: 6
- Review effort level: Medium
| /// assert!(count > 0); | ||
| /// ``` | ||
| pub fn collect_sparse_grams_deque(content: &[u8], mut emit: impl FnMut(NGram)) { | ||
| pub fn collect_sparse_grams_deque(content: &[u8], mut emit: impl FnMut(NGram, u32)) { |
| /// candidates are exactly the positions where a backward scan hits a new suffix minimum, so a | ||
| /// fixed-size ring of recent priorities replaces the monotone deque. | ||
| pub fn collect_sparse_grams_scan(content: &[u8], mut emit: impl FnMut(NGram)) { | ||
| pub fn collect_sparse_grams_scan(content: &[u8], mut emit: impl FnMut(NGram, u32)) { |
| serde = ["dep:serde"] | ||
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| [dependencies] | ||
| casefold = { path = "../casefold" } |
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This is the query part which needs to be integrated into blackbird next.