Re: no wildcards/anchors allowed in pattern? ${f:s/pattern/_s&}

[zzapper <zsh@xxxxxxxxxxxxxx>]

On 08/09/2022 14:16, Peter Stephenson wrote:
> Sorry, didn't go to the list, agian...
>
> > On 08/09/2022 12:56 zzapper <zsh@xxxxxxxxxxxxxx> wrote:
> > This works for me and allows me to use memory '&' but I'm frustrated
> > that I don't seem to be able to use anchors / wildcards etc in the pattern
> >
> > f=dog.png ;echo $f '->' ${f:s/./_s&}
> > dog.png -> dog_s.png
> >
> > the alternative syntax allows pattern to be a regexp but has no regexp
> > memory
> >
> >
> > f=dog.png.png ;echo $f '->' ${f/%.png/_s.png}
> > dog.png.png -> dog.png_s.png
> The pattern expansion case has this syntax:
>
> f=stuff.png
> print ${foo/%(#m).png/_$MATCH}
> stuff_.png
>
> Look up the "m" globbing flag.
>
> pws
thanks this does what I require accepts *.{jpg,jpeg,png,gif}

f=stuff.jpg; print ${f/%(#m).[pjg][npi]e#[gf]/_s$MATCH}

stuff_s.jpg


zzapper