Re: replace-regexp-in-string bug?

[Lennart Borgman]

Lennart Borgman wrote:

> I want to create a regexp out of an unknown string with spaces. I am 
> not sure about the number of spaces in the actual string to match so I 
> want to do a replacement like this:
>
>    (replace-regexp-in-string "\s-+" "\s-+" "some space" nil t)
>
> However this returns "some space" instead of "some\s-+space" which I 
> expected. Is this a bug or am I misunderstanding the arguments in some 
> way?

No, it was not a bug. I have to count my \. This works as expected using

  (replace-regexp-in-string "\\s-+" "\\s-+" "some space" nil t)

Sorry for the noise.