(address . guix-patches@gnu.org)(name . zimoun)(address . zimon.toutoune@gmail.com)
20190918155757.4198-1-zimon.toutoune@gmail.com
Fixes https://bugs.gnu.org/36763.
Previously, the logical and connecting the regexps did not output the expected
results (introduced in 8874faaaac665100a095ef25e39c9a389f5a397f).
* guix/ui.scm (relevance)
[score]: Change its arguments.
[regexp->score]: New procedure.
* tests/ui.scm ("package-relevance"): Add test.
---
guix/ui.scm | 48 ++++++++++++++++++++++++------------------------
tests/ui.scm | 5 ++++-
2 files changed, 28 insertions(+), 25 deletions(-)
Toggle diff (93 lines)
diff --git a/guix/ui.scm b/guix/ui.scm
index 7920335928..4be31db047 100644
--- a/guix/ui.scm
+++ b/guix/ui.scm
@@ -13,6 +13,7 @@
;;; Copyright © 2018 Ricardo Wurmus <rekado@elephly.net>
;;; Copyright © 2019 Chris Marusich <cmmarusich@gmail.com>
;;; Copyright © 2019 Tobias Geerinckx-Rice <me@tobias.gr>
+;;; Copyright © 2019 Simon Tournier <zimon.toutoune@gmail.com>
;;;
;;; This file is part of GNU Guix.
;;;
@@ -1281,33 +1282,32 @@ weight of this field in the final score.
A score of zero means that OBJ does not match any of REGEXPS. The higher the
score, the more relevant OBJ is to REGEXPS."
- (define (score str)
- (define scores
- (map (lambda (regexp)
- (fold-matches regexp str 0
- (lambda (m score)
- (+ score
- (if (string=? (match:substring m) str)
- 5 ;exact match
- 1)))))
- regexps))
-
+ (define (score regexp str)
+ (fold-matches regexp str 0
+ (lambda (m score)
+ (+ score
+ (if (string=? (match:substring m) str)
+ 5 ;exact match
+ 1)))))
+
+ (define (regexp->score regexp)
+ (let ((score-regexp (lambda (str) (score regexp str))))
+ (fold (lambda (metric relevance)
+ (match metric
+ ((field . weight)
+ (match (field obj)
+ (#f relevance)
+ ((? string? str)
+ (+ relevance (* (score-regexp str) weight)))
+ ((lst ...)
+ (+ relevance (* weight (apply + (map score-regexp lst)))))))))
+ 0 metrics)))
+
+ (let ((scores (map regexp->score regexps)))
;; Return zero if one of REGEXPS doesn't match.
(if (any zero? scores)
0
- (reduce + 0 scores)))
-
- (fold (lambda (metric relevance)
- (match metric
- ((field . weight)
- (match (field obj)
- (#f relevance)
- ((? string? str)
- (+ relevance (* (score str) weight)))
- ((lst ...)
- (+ relevance (* weight (apply + (map score lst)))))))))
- 0
- metrics))
+ (reduce + 0 scores))))
(define %package-metrics
;; Metrics used to compute the "relevance score" of a package against a set
diff --git a/tests/ui.scm b/tests/ui.scm
index 2138e23369..d8573e88d8 100644
--- a/tests/ui.scm
+++ b/tests/ui.scm
@@ -267,6 +267,7 @@ Second line" 24))
(gcrypt (specification->package "guile-gcrypt"))
(go (specification->package "go"))
(gnugo (specification->package "gnugo"))
+ (libb2 (specification->package "libb2"))
(rx (cut make-regexp <> regexp/icase))
(>0 (cut > <> 0))
(=0 zero?))
@@ -283,6 +284,8 @@ Second line" 24))
(=0 (package-relevance go
(map rx '("go" "game"))))
(>0 (package-relevance gnugo
- (map rx '("go" "game")))))))
+ (map rx '("go" "game"))))
+ (>0 (package-relevance libb2
+ (map rx '("crypto" "library")))))))
(test-end "ui")
--
2.21.0