Regex to change multiple lines

[Chris Angelico]

On Fri, Sep 4, 2020 at 5:36 AM Termoregolato <waste at is.invalid> wrote:
>
> Il 03/09/20 16:10, Termoregolato wrote:
>
> > I need to change every occurrence of a sequence between two chars
>
> Thanks to all for your replies, it's time to learn regular expressions,
> but now I've some valid pointers from you.
>
> The work I must do here, to explain, is to get some markdown files, and
> add the strikethrough in a different color from the original, so I've do
> a bit of confusion between markdown "~~" and my "%%" in examples, where
> I wanted to reduce the number of lines.

Hmm. Have you considered using CSS to do this? Markdown is generally
fairly easy to style with CSS.

ChrisA