Re: Replace spaces with underscore after some pattern in line

On Mi, 27 Sep 2023, Igor wrote:

> How to replace all of the spaces in each line after XXX string?
>
> Input sample data:
> aaaaaa bbbbbb cccc XXX aaaaa bbbbbbb
> cccccccc eeeeeeeeee XXX aaa bbbb cccc ddd
> aaaa bbbb ddd ee XXX aaa bbb dddd eee
>
> Output sample data:
> aaaaaa bbbbbb cccc XXX_aaaaa_bbbbbbb
> cccccccc eeeeeeeeee XXX_aaa_bbbb_cccc_ddd
> aaaa bbbb ddd ee XXX aaa_bbb_dddd_eee

That is a bit tricky. I would probably use something like this:

:%s/\(XXX.*\)$/\=substitute(submatch(1), ' ', '_', 'g')/

Which basically grabs everything after the 'XXX' and replaces in that
submatch all whitespaces using a sub-replace-expression (see :h
sub-replace-expression and :h sub-replace-special).

Thanks,
Christian
--
Don't go surfing in South Dakota for a while.

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