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org-agenda: Fix nil-nil comparison in tags and alpha 

* lisp/org-agenda.el (org-cmp-alpha):
(org-cmp-tag): Don't favor a particular ordering when both lhs and rhs
are nil.
This commit is contained in:
memeplex 2019-03-09 17:49:52 -03:00 committed by Nicolas Goaziou
parent cebd6417b2
commit 116a58b368
1 changed files with 4 additions and 2 deletions
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6
lisp/org-agenda.el
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@ -6990,7 +6990,8 @@ The optional argument TYPE tells the agenda type."
"\\([ \t]*\\[[a-zA-Z0-9]\\]\\)? *") tb)
(setq tb (substring tb (match-end 0))))
(setq tb (downcase tb)))
(cond ((not ta) +1)
(cond ((not (or ta tb)) nil)
((not ta) +1)
((not tb) -1)
((string-lessp ta tb) -1)
((string-lessp tb ta) +1))))
@ -6999,7 +7000,8 @@ The optional argument TYPE tells the agenda type."
"Compare the string values of the first tags of A and B."
(let ((ta (car (last (get-text-property 1 'tags a))))
(tb (car (last (get-text-property 1 'tags b)))))
(cond ((not ta) +1)
(cond ((not (or ta tb)) nil)
((not ta) +1)
((not tb) -1)
((string-lessp ta tb) -1)
((string-lessp tb ta) +1))))