is_strict#

Test whether a string is a strict version suitable for CPAN indexing.

Synopsis#

version::is_strict($str);
is_strict($str);         # after use version qw(is_strict)

Strict versions rule out alpha underscores and unusual shapes. A decimal version is an integer without leading zeros, optionally followed by one dot and a digit run; a dotted-integer version must start with v and have at least three components. This is the form PAUSE expects for permanent releases.

What you get back#

A boolean: 1 if the string matches the strict grammar, the empty string otherwise.

Examples#

version::is_strict("1.02");        # 1
version::is_strict("v1.2.3");      # 1
version::is_strict("1.2.3");       # ""  - needs the v prefix
version::is_strict("1.02_03");     # ""  - underscores disallowed
version::is_strict("v1.2");        # ""  - needs 3+ components

Differences from upstream#

Fully compatible with upstream version 0.9934.

See also#

  • is_lax - the permissive counterpart

  • declare - the recommended way to produce a strict dotted-integer