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Deprecated replacement for emacs regex

Is there a (non-interactive) function in emacs lisp that replaces a matched regex on an arbitrary string?

i.e.

(sub regex search-string replace-string)

how in

(sub "[^.x/]" "beef./xxfoo" "")
;; => "./xx"
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1 answer


Yes, see function replace-regexp-in-string

. Just like this.

And to replace the corresponding text in the buffer you have replace-regexp

.



The replacement does not need to be a literal string, but can involve extracting portions of the match from regular expressions and other manipulations. Use C-h f

to see the document for these functions.

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