Lintian::Relation::Version (3) - Linux Manuals
Lintian::Relation::Version: Comparison operators on Debian versions
NAME
Lintian::Relation::Version - Comparison operators on Debian versions
SYNOPSIS
print "yes\n" if versions_equal('1.0', '1.00');
print "yes\n" if versions_gte('1.1', '1.0');
print "no\n" if versions_lte('1.1', '1.0');
print "yes\n" if versions_gt('1.1', '1.0');
print "no\n" if versions_lt('1.1', '1.1');
print "yes\n" if versions_compare('1.1', '<=', '1.1');
DESCRIPTION
This module provides five functions for comparing version numbers. The underlying implementation uses "libapt-pkg-perl" to ensure that the results match what dpkg will expect.FUNCTIONS
- versions_equal(A, B)
- Returns true if A is equal to B ("=") and false otherwise.
- versions_lte(A, B)
- Returns true if A is less than or equal ("<=") to B and false otherwise.
- versions_gte(A, B)
- Returns true if A is greater than or equal (">=") to B and false otherwise.
- versions_lt(A, B)
- Returns true if A is less than ("<<") B and false otherwise.
- versions_gt(A, B)
- Returns true if A is greater than (">>") B and false otherwise.
- versions_compare(A, OP, B)
- Returns true if A OP B, where OP is one of "=", "<=", ">=", "<<", or ">>", and false otherwise.
- versions_comparator (A, B)
-
Returns -1, 0 or 1 if the version A is (respectively) less than, equal
to or greater than B. This is useful for (e.g.) sorting a list of
versions:
foreach my $version (sort versions_comparator @versions) { ... }