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ui: Cut off search early if any regexp does not match.

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* guix/ui.scm (relevance): When one of the regexps does not match, cut off
early and return 0. Do not try to match the remaining regexps.
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Arun Isaac 2020-06-01 04:48:01 +05:30
parent cf48f0fc4c
commit e70a884706
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1 changed files with 11 additions and 5 deletions
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guix/ui.scm
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@ -14,6 +14,7 @@
;;; Copyright © 2019 Chris Marusich <cmmarusich@gmail.com> ;;; Copyright © 2019 Chris Marusich <cmmarusich@gmail.com>
;;; Copyright © 2019 Tobias Geerinckx-Rice <me@tobias.gr> ;;; Copyright © 2019 Tobias Geerinckx-Rice <me@tobias.gr>
;;; Copyright © 2019 Simon Tournier <zimon.toutoune@gmail.com> ;;; Copyright © 2019 Simon Tournier <zimon.toutoune@gmail.com>
;;; Copyright © 2020 Arun Isaac <arunisaac@systemreboot.net>
;;; ;;;
;;; This file is part of GNU Guix. ;;; This file is part of GNU Guix.
;;; ;;;
@ -1520,11 +1521,16 @@ score, the more relevant OBJ is to REGEXPS."
(+ relevance (* weight (apply + (map score-regexp lst))))))))) (+ relevance (* weight (apply + (map score-regexp lst)))))))))
0 metrics))) 0 metrics)))
(let ((scores (map regexp->score regexps))) (let loop ((regexps regexps)
;; Return zero if one of REGEXPS doesn't match. (total-score 0))
(if (any zero? scores) (match regexps
0 ((head . tail)
(reduce + 0 scores)))) (let ((score (regexp->score head)))
;; Return zero if one of PATTERNS doesn't match.
(if (zero? score)
0
(loop tail (+ total-score score)))))
(() total-score))))
(define %package-metrics (define %package-metrics
;; Metrics used to compute the "relevance score" of a package against a set ;; Metrics used to compute the "relevance score" of a package against a set