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; lisp/so-long.el: Prevent potential error if comment-use-syntax is nil

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* lisp/so-long.el (so-long-detected-long-line-p): Ensure that
`comment-start-skip' and `comment-end-skip' are both set if
`comment-use-syntax' is nil, as `comment-forward' requires them
to be bound in this scenario.
This commit is contained in:
Phil Sainty 2020-07-11 19:40:27 +12:00
parent 986c12b20f
commit 8576297b2a
1 changed files with 3 additions and 1 deletions
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lisp/so-long.el
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@ -1047,7 +1047,9 @@ This is the default value of `so-long-predicate'."
(let ((count 0) start)
(save-excursion
(goto-char (point-min))
(when so-long-skip-leading-comments
(when (and so-long-skip-leading-comments
(or comment-use-syntax ;; Refer to `comment-forward'.
(and comment-start-skip comment-end-skip)))
;; Skip the shebang line, if any. This is not necessarily comment
;; syntax, so we need to treat it specially.
(when (looking-at "#!")