Re: Tools for those working heavily with strings

[Philip Kaludercic]

tomas@tuxteam.de writes:

> On Sun, Jul 24, 2022 at 01:42:14PM +0200, carlmarcos@tutanota.com wrote:
>> Jul 24, 2022, 11:26 by tomas@tuxteam.de:
>> 
>> > On Sun, Jul 24, 2022 at 01:12:39PM +0200, carlmarcos--- via Users
>> > list for the GNU Emacs text editor wrote:
>> >
>> > [...]
>> >
>> >> I'd appreciate if emacs could provide a minimum set of functions
>> >> to manipulate list,
>> >> as string manipulations are of good use.
>> >>
>> >
>> > Why do you always refuse to read the docs?
>> >
>> >> What can be introduced, you think?
>> >>
>> >
>> > What is missing, from your point of view?
>> >
>> What can I use to test whether a string in composed of whitespace or is 
>> empty?
>
> Try (string-match-p "^[[:space:]]*$" your-string-here)

Or `string-empty-p'.

> If you want it to only match "horizontal white space" (i.e. no newlines,
> no vertical tabs), try :blank: instead.
>
> Cheers