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Feat: prioritize search result

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Sorawee Porncharoenwase 2020-02-23 02:36:53 -05:00 committed by Jay McCarthy
parent f9c3578ec4
commit 2ea6722383
1 changed files with 26 additions and 11 deletions
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37
src/packages.rkt
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@ -290,20 +290,35 @@
;; to do this at package save time, but this will do for now.
(pkg->searchable-text pkg)))))
;; prioritize-search :: string? (listof symbol?) -> (listof symbol?)
;; Precondition: names are sorted ascendingly
;; Postcondition: names are reordered so that exact match is prioritized first
;; followed by those whose prefix matches the search text,
;; followed by those that contain the search text,
;; followed by other results
(define (prioritize-search text names)
(match-define-values (prefixing non-prefixing)
(partition (λ (name) (string-prefix? (symbol->string name) text)) names))
(match-define-values (containing non-containing)
(partition (λ (name) (string-contains? (symbol->string name) text)) non-prefixing))
(append prefixing containing non-containing))
(define (package-search text tags)
(define res (map (lambda (r) (regexp (regexp-quote r #f))) (string-split text)))
(define packages (manager-rpc 'packages))
(sort-package-names
(filter (lambda (package-name)
(define pkg (hash-ref packages package-name))
(andmap (package-text-matches? pkg) res))
(hash-keys
(for/fold ((ps packages)) ((tag-spec tags))
(match-define (list tag-name include?) tag-spec)
(for/hash (((package-name pkg) (in-hash ps))
#:when (and (not (tombstone? pkg))
((if include? values not) (@ref (@ pkg search-terms) tag-name))))
(values package-name pkg)))))))
(prioritize-search
text
(sort-package-names
(filter (lambda (package-name)
(define pkg (hash-ref packages package-name))
(andmap (package-text-matches? pkg) res))
(hash-keys
(for/fold ((ps packages)) ((tag-spec tags))
(match-define (list tag-name include?) tag-spec)
(for/hash (((package-name pkg) (in-hash ps))
#:when (and (not (tombstone? pkg))
((if include? values not) (@ref (@ pkg search-terms) tag-name))))
(values package-name pkg))))))))
(define (packages-jsexpr)
(manager-rpc 'packages))