# New Ticket Created by Vijayvithal # Please include the string: [perl #133541] # in the subject line of all future correspondence about this issue. # <URL: https://rt.perl.org/Ticket/Display.html?id=133541 >
In the attached code, the only difference between the Grammars G0 and G1 is the defination of token 'type' it is defined as <alpha> in one case and as <alnum> in another. Since the string being matched is 'sc_in' both the alpha and alnum tokens should have captured it. But we see the following result on execution =========== <alnum> Example============== Nil =========== <alpha> Example============== ｢sc_in<foo> bar｣ ruport => ｢sc_in｣ type => ｢sc_in｣ alpha => ｢s｣ alpha => ｢c｣ alpha => ｢_｣ alpha => ｢i｣ alpha => ｢n｣ Perl Version is This is Rakudo Star version 2018.06 built on MoarVM version 2018.06 implementing Perl 6.c. -- Vijayvithal Dyumnin Semiconductors
grammar G0 {
token TOP {<rport>|<ruport>.*}
regex rport { <type>}
rule ruport { <type>}
#token type {<alpha>+}
token type {<alnum>+}
}
grammar G1 {
token TOP {<rport>|<ruport>.*}
regex rport { <type>}
rule ruport { <type>}
token type {<alpha>+}
#token type {<alnum>+}
}
my $str="sc_in<foo> bar";
say "=========== <alnum> Example==============";
say G0.parse($str);
say "=========== <alpha> Example==============";
say G1.parse($str);
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