# 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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