Within the regex the ' character is just another string so rather than escaping it you can write the regex as :
$s.subst( / "'" ~ "'" (.+) /, $0) (That's " ' " (without spaces) to be exact.) And it does the trick. You can do the same when defining it $s = "'<favicon />'"; or $s = q['<favicon />']; both work. On Mon, 10 Jan 2022 at 16:12, Richard Hainsworth <rnhainswo...@gmail.com> wrote: > Aha. Thanks > > On 10/01/2022 15:59, Gianni Ceccarelli wrote: > > On Mon, 10 Jan 2022 15:41:04 +0000 > > Richard Hainsworth <rnhainswo...@gmail.com> wrote: > > > >> Using REPL I got > >> > >> > my $s = '\'<favicon />\'' > >> '<favicon />' > >> > $s.subst( / \' ~ \' (.+) /, $0) > >> Use of Nil in string context > >> in block <unit> at <unknown file> line 1 > > That error message (which is a bit LTA) refers to the `$0`. As > > https://docs.raku.org/routine/subst#Callable shows, you need to write: > > > > $s.subst( / \' ~ \' (.+) /, { $0 }) > > > >> > my $t = '{<favicon />}' > >> {<favicon />} > >> > $t.subst( / \{ ~ \} (.+) /, $0) > >> <favicon /> > > This only appear to work because you're running it in the same REPL > > session; the previous `subst` had the side-effect of setting `$0` > > (well, it sets `$/`, but `$0` is an alias for `$/[0]`…) > > > -- Simon Proctor Cognoscite aliquid novum cotidie http://www.khanate.co.uk/
