help-gnu-emacs
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [External] : Use the characters "+" and "-" in regular expressions


From: Jean Louis
Subject: Re: [External] : Use the characters "+" and "-" in regular expressions
Date: Thu, 20 May 2021 15:53:45 +0300
User-agent: Mutt/2.0.6 (2021-03-06)

* Christopher Dimech <dimech@gmx.com> [2021-05-20 14:32]:
> This could be what you need
> 
>   (string-match "[\s]+ " s)
> 
> Matches any white-space character.

Why space after plus?

>From manual:

"Whitespace characters such as space, tab, newline and formfeed..."

So this does not match new line:

(string-match "[\s]+" "
") ⇒ nil

Neither TAB or FORM FEED:
(string-match "[\s]+" " ") ⇒ nil

(string-match "[\s]+" "") ⇒ nil



-- 
Jean

Take action in Free Software Foundation campaigns:
https://www.fsf.org/campaigns

Sign an open letter in support of Richard M. Stallman
https://stallmansupport.org/
https://rms-support-letter.github.io/




reply via email to

[Prev in Thread] Current Thread [Next in Thread]