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prefixTerms matches indexed terms by prefix (allTerms + isPrefixOf); prefixDocs unions their docs; prefixRankTfIdf ranks via the matched terms. 136/136. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
11 lines
699 B
Plaintext
11 lines
699 B
Plaintext
;; search prefix / wildcard queries — Haskell source fragment. Depends on index +
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;; rank (reuses candStep / rankTfIdf). A prefix matches every indexed term that
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;; starts with it; the matching terms are unioned (OR) into a docid set.
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;; prefixTerms :: String -> Index -> [Term] (sorted, from allTerms)
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;; prefixDocs :: String -> Index -> [DocId] (sorted union)
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;; prefixRankTfIdf :: String -> Index -> [DocId] (ranked by the matched terms)
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(define
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search/prefix-src
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"prefixTerms pre idx = filter (isPrefixOf pre) (allTerms idx)\nprefixDocs pre idx = foldl (candStep idx) [] (prefixTerms pre idx)\nprefixRankTfIdf pre idx = rankTfIdf (prefixTerms pre idx) idx\n")
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