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Fix handling of nil PRED2 arg for completion-table-with-predicate

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* lisp/minibuffer.el (completion-table-with-predicate): Don't act as
if strict is non-nil when pred2 is nil (Bug#27841).
* test/lisp/minibuffer-tests.el
(completion-table-with-predicate-test): Add a test for Bug#27841.
This commit is contained in:
Ryan C. Thompson 2017-07-26 11:09:42 -07:00 • committed by Noam Postavsky
parent 949b70a7d8
commit 255ba01148
2 changed files with 33 additions and 1 deletions
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2
lisp/minibuffer.el
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@ -392,7 +392,7 @@ obeys predicates."
(and (funcall pred1 x) (funcall pred2 x)))))
;; If completion failed and we're not applying pred1 strictly, try
;; again without pred1.
(and (not strict) pred1 pred2
(and (not strict) pred1
(complete-with-action action table string pred2))))))
(defun completion-table-in-turn (&rest tables)

32
test/lisp/minibuffer-tests.el
View file

@ -42,5 +42,37 @@
(should (equal (buffer-string)
"test: "))))))
(ert-deftest completion-table-with-predicate-test ()
(let ((full-collection
'("apple" ; Has A.
"beet" ; Has B.
"banana" ; Has A & B.
"cherry" ; Has neither.
))
(no-A (lambda (x) (not (string-match-p "a" x))))
(no-B (lambda (x) (not (string-match-p "b" x)))))
(should
(member "cherry"
(completion-table-with-predicate
full-collection no-A t "" no-B t)))
(should-not
(member "banana"
(completion-table-with-predicate
full-collection no-A t "" no-B t)))
;; "apple" should still match when strict is nil.
(should (eq t (try-completion
"apple"
(apply-partially
'completion-table-with-predicate
full-collection no-A nil)
no-B)))
;; "apple" should still match when strict is nil and pred2 is nil
;; (Bug#27841).
(should (eq t (try-completion
"apple"
(apply-partially
'completion-table-with-predicate
full-collection no-A nil))))))
(provide 'completion-tests)
;;; completion-tests.el ends here