On Fri, Dec 6, 2019 at 10:54 PM ToddAndMargo via perl6-users <perl6-us...@perl.org> wrote: > > On 2019-12-06 22:38, ToddAndMargo via perl6-users wrote: > >>> On Fri, Dec 6, 2019 at 9:28 PM ToddAndMargo via perl6-users > >>> <perl6-us...@perl.org> wrote: > >>>> > >>>> On 2019-12-06 20:33, William Michels via perl6-users wrote: > >>>>> say $/; > >>>> > >>>> First I have seen of `$/`. Is it any relation to `$_`? > > > > On 2019-12-06 22:11, William Michels via perl6-users wrote: > >> Hi Todd, yes in a sense "$/" is related to "$_" in that they're both > >> variables that get filled with values behind the scenes by Raku/Perl6. > >> You already know that "$_" is the general default 'topic' variable > >> (same as in Perl 5, see Ref#1 below). > >> > >> From Ref#2 below: " $/ is the match variable. It stores the result of > >> the last Regex match and so usually contains objects of type Match." > >> Apparently "$/" in Raku/Perl6 has replaced a series of variables that > >> were used in Perl5, including "$`", "$&", and "$'" which "are gone > >> from Raku" (Ref#3 below): > >> > >> 1. https://docs.raku.org/language/5to6-perlvar#$ARG,_$_ > >> 2. https://docs.raku.org/syntax/$$SOLIDUS > >> 3. > >> https://docs.raku.org/language/5to6-perlvar#Variables_related_to_regular_expressions > >> > >> > >> HTH, Bill. > > > > Awesome! I am going to have fun with this! I do > > A LOT of regex's. > > > > Thank you! > > > > Tells me what was matched! Oh I am going to have a > lot of fun with this! > > my $x = Q[\:\\::]; ( my $y = $x ) ~~ s/ '\\\\' /x/; say $/ > ｢\\｣ > > my $x = Q[abcdef]; ( my $y = $x ) ~~ s/ .*? (cd) (e) .* /x/; say $/ > ｢abcdef｣ > 0 => ｢cd｣ > 1 => ｢e｣ > > my $x = Q[abcdef]; ( my $y = $x ) ~~ m/ .*? (cd) (e).* /; say $/ > ｢abcdef｣ > 0 => ｢cd｣ > 1 => ｢e｣ > > my $x = Q[abcdef]; ( my $y = $x ) ~~ m/ .*? (cd) (e).* /; for $/ {say $_}; > ｢abcdef｣ > 0 => ｢cd｣ > 1 => ｢e｣ > > my $x = Q[abcdef]; ( my $y = $x ) ~~ m/ .*? (cd) (e).* /; say $/[0]; say > $/[1] > ｢cd｣ > ｢e｣
Adding some: mbook:~ homedir$ perl6 To exit type 'exit' or '^D' > my $x = Q[\:\\::]; \:\\:: > say $/ if $x ~~ m/ '\\\\' /; ｢\\｣ > say $/ if $x ~~ rx/ '\\\\' /; ｢\\｣ > say $x \:\\:: > $*VM moar (2019.07.1) > HTH, Bill
