NAME

Version::Next - increment module version numbers simply and correctly

VERSION

version 0.002

SYNOPSIS

   use Version::Next;
 
   my $new_version = next_version( $old_version );

DESCRIPTION

This module provides a simple, correct way to increment a Perl module version number. It does not attempt to guess what the original version number author intended, it simply increments in the smallest possible fashion. Decimals are incremented like an odometer. Dotted decimals are incremented piecewise and presented in a standardized way.

If more complex version manipulation is necessary, you may wish to consider Perl::Version.

USAGE

This module uses Sub::Exporter for optional exporting. Nothing is exported by default.

next_version

   my $new_version = next_version( $old_version );

Given a string, this function make the smallest logical increment and returns it. The input string is very minimally checked that it resembles a version number. Given undef, the function returns 0.

Decimal versions are incremented like an odometer, preserving the original number of decimal places. If an underscore is present (indicating an "alpha" version), its relative position is preserved. Examples:

   0.001    ->   0.002
   0.999    ->   1.000
   0.1229   ->   0.1230
   0.12_34  ->   0.12_35
   0.12_99  ->   0.13_00

Dotted-decimal versions have the least significant element incremented by one. If the result exceeds 999, the element resets to 0 and the next most significant element is incremented, and so on. Any leading zero padding is removed. Examples:

  v1.2.3     ->  v1.2.4
  v1.2.999   ->  v1.3.0
  v1.999.999 ->  v2.0.0
  v1.2.3_4   ->  v1.2.3_5
  v1.2.3_999 ->  v1.2.4_0

SEE ALSO

AUTHOR

David Golden <dagolden@cpan.org>

COPYRIGHT AND LICENSE

This software is Copyright (c) 2010 by David Golden.

This is free software, licensed under:

  The Apache License, Version 2.0, January 2004