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Make Info completion more robust

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* lisp/info.el (Info-build-node-completions): Don't signal an
error if there are no nodes in the file we're computing
completions over (bug#47771).
This commit is contained in:
Lars Ingebrigtsen 2021-05-06 11:24:39 +02:00
parent b61c828ea3
commit f0648fef35
1 changed files with 11 additions and 4 deletions
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15
lisp/info.el
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@ -1882,10 +1882,17 @@ the Top node in FILENAME."
(or (cdr (assoc filename Info-file-completions))
(with-temp-buffer
(Info-mode)
(Info-goto-node (format "(%s)Top" filename))
(Info-build-node-completions-1)
(push (cons filename Info-current-file-completions) Info-file-completions)
Info-current-file-completions))
(condition-case nil
(Info-goto-node (format "(%s)Top" filename))
;; `Info-goto-node' signals a `user-error' when there
;; are no nodes in the file in question (for instance,
;; if it's not actually an Info file).
(user-error nil)
(:success
(Info-build-node-completions-1)
(push (cons filename Info-current-file-completions)
Info-file-completions)
Info-current-file-completions))))
(or Info-current-file-completions
(Info-build-node-completions-1))))