If I've interpreted this https://docs.perl6.org/language/regexes#Enumerated_character_classes_and_ranges correctly,
^ is "start of string" +alnum means "in the alphanumeric set" -alpha means "not in the purely alphabetic set" i.e. <+alnum -alpha> means "alphanumeric but not a letter", i.e 0-9_ + is "one or more of the preceding set" $ is "end of string" On 8/3/18, ToddAndMargo <toddandma...@zoho.com> wrote: > On 08/02/2018 05:18 AM, Timo Paulssen wrote: >> Is this what you want? >> >> perl6 -e 'say "12345" ~~ /^<+alnum -alpha>+$/' >> ｢12345｣ >> >> perl6 -e 'say "123a45" ~~ /^<+alnum -alpha>+$/' >> Nil >> >> HTH >> - Timo >> > > What does the following do? > > +alnum (why does it need the "+"?) > -alpha (I presume "-" means negate?) > +$ > > Many thanks, > -T >
