Re: Function to find all matches in a string?

On Saturday, December 23, 2023 at 2:35:52 PM UTC-8 Tim Chase wrote:

I was looking for something similar to Python's re.findall()/finditer()
function to answer a question on Reddit[1] but was surprised I
couldn't find anything in

:help function-list

The general intent would be to take an input string and return a
List containing all the sub-strings matching a pattern like

let matches=findall('amwenxipyuqz', '[aeiou]')

would set matches to

['aw', 'en', 'ip', 'uq']

I was able to cobble together a hack-job in this case, but I'd hoped
to be able to do something like

:let a=[] | g/#\w\+/call extend(a, findall(getline('.'), @/))

Does such a function exist and I just missed it?

Thanks!

-tim

[1]
https://www.reddit.com/r/vim/comments/18pcd84/the_vim_way/kenedxq/

I think substitute() is the closest, perhaps you can use submatch() for appending to the list. Something like this in mind:

  :let a=[] | g/#\w\+/call substitute(getline('.'), @/, '\=extend(a, [submatch(0)])', 'g')

Regards,

-Arun

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