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Fix regexp in help-do-arg-highlight

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* lisp/help-fns.el (help-do-arg-highlight): Fix regexp.  (Bug#65580)

Avoid highlighting (parts of) the function name as arguments in the
output of 'describe-function' when the function has an argument with
the same name.  To achieve this, refine the regular expression that
'help-do-arg-highlight' uses such that it doesn't match anything in
the function name.
This commit is contained in:
Eshel Yaron 2023-08-28 13:43:52 +02:00 • committed by Stefan Kangas
parent da8b323f82
commit dd38097f0b
1 changed files with 2 additions and 1 deletions
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3
lisp/help-fns.el
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@ -369,7 +369,8 @@ if the variable `help-downcase-arguments' is non-nil."
(setq doc (replace-regexp-in-string
;; This is heuristic, but covers all common cases
;; except ARG1-ARG2
(concat "\\<" ; beginning of word
(concat "([^ ]+ .*" ; skip function name
"\\<" ; beginning of word
"\\(?:[a-z-]*-\\)?" ; for xxx-ARG
"\\("
(regexp-quote arg)