Re: (tye)Re2: Ordered Comparison of Generalized Version Strings.


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Re: (tye)Re2: Ordered Comparison of Generalized Version Strings.

by John M. Dlugosz (Monsignor)

on Jul 26, 2001 at 19:16 UTC ( [id://100010]=note: print w/replies, xml )

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in reply to (tye)Re2: Ordered Comparison of Generalized Version Strings.
in thread Ordered Comparison of Generalized Version Strings.

I think yours does support differing number of digits in a part; e.g. 3.9 vs 3.10.

As for error checking, which is larger: 3.2 or 3B or i3r2 ?

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(tye)Re3: Ordered Comparison of Generalized Version Strings.
by tye (Sage) on Jul 26, 2001 at 19:49 UTC

Yes, it supports comparing versions were 3.10 comes after 3.9 (because 3.9==3.09), but it doesn't support decimal numbers where 3.10 comes before 3.9 (because 3.9==3.90) [but if the decimal numbers that will be compared together always have the same number of digits after the decimal (as is often the case), then it works]. Obviously it can't support both version strings and all decimal numbers, I just mentioned that because it is a general-purpose "natural sort".

Well, I definitely consider 3B to be a revision to the base branch and so 3B comes after 3.2. But I supposed some may disagree with me. So rejecting such comparisons is a worthwhile feature that can't be duplicated by a simpler method. (:

tye

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