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Perl 6
STD.pm: Revision 5
is the Standard Perl 6 grammar and more or less part of the specs. Its a program, written in a subset of Perl 6 and by Larry Wall, that defines how Perl 6 should be parsed. Unfortunately no implementation can fully parse STD.pm yet, let alone build a compiler or interpreter based on it. However, by means of the "viv" tool described next, Perl 6 source code can be parsed by a near equivalent running in Perl 5. |