use CPAN::Version; CPAN::Version->vgt("1.1","1.1.1"); # 1 bc. 1.1 > 1.001001 CPAN::Version->vlt("1.1","1.1"); # 0 bc. 1.1 not < 1.1 CPAN::Version->vcmp("1.1","1.1.1"); # 1 bc. first is larger CPAN::Version->vcmp("1.1.1","1.1"); # -1 bc. first is smaller CPAN::Version->readable(v1.2.3); # "v1.2.3" CPAN::Version->vstring("v1.2.3"); # v1.2.3 CPAN::Version->float2vv(1.002003); # "v1.2.3"
It's only written as a helper module for both CPAN.pm and CPANPLUS.pm.
As it stands it predates version.pm but has the same goal: make version strings visible and comparable.