/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ #include "nsISupports.idl" /** * Version strings are dot-separated sequences of version-parts. * * A version-part consists of up to four parts, all of which are optional: * * <number-a><string-b><number-c><string-d (everything else)> * * A version-part may also consist of a single asterisk "*" which indicates * "infinity". * * Numbers are base-10, and are zero if left out. * Strings are compared bytewise. * * For additional backwards compatibility, if "string-b" is "+" then * "number-a" is incremented by 1 and "string-b" becomes "pre". * * 1.0pre1 * < 1.0pre2 * < 1.0 == 1.0.0 == 1.0.0.0 * < 1.1pre == 1.1pre0 == 1.0+ * < 1.1pre1a * < 1.1pre1 * < 1.1pre10a * < 1.1pre10 * * Although not required by this interface, it is recommended that * numbers remain within the limits of a signed char, i.e. -127 to 128. */ [scriptable, uuid(e6cd620a-edbb-41d2-9e42-9a2ffc8107f3)] interface nsIVersionComparator : nsISupports { /** * Compare two version strings * @param A The first version * @param B The second version * @returns < 0 if A < B * = 0 if A == B * > 0 if A > B */ long compare(in ACString A, in ACString B); };