7 DCLHolidays, SYSTEM MANAGEMENT, Calculation of holidays   E The sample DCL procedure HOLIDAYS.COM (freeware V5) and its successor I HOLIDAYS020.COM use a special form auf the Gaussian Easter Algorithm (see I reference in the procedure itself) to calculate the date of Easter sunday G and from there the dates of other holidays depending on it. Included is A the handling of holidays with fixed dates, christmas for example.   D This procedure has been written in Germany with respect to the local> holidays; it may and will require some modifications for otherD countries. It uses _only_ DCL and _no_ other programming language soB it can be used on any OpenVMS system without a need for a separate compiler and its license.   E This procedure may be usefull if backup or similar operations have to > be skipped on such days. (No operator available to handle tape cartridges, for example.)   B Usage: Include the "check_date" subroutine in your main procedure,D call it with the date to be checked as a parameter (OpenVMS absoluteC date format) and evaluate the value of the symbol(s) $STATUS and/or A $SEVERITY. The possible return codes are listed in the subroutine  itself.   ; New for V2.0 are (thanks to Paddy O'Brien for suggestions): ) - a localization option (definition file)  - a listing optionC - a major re-write of the procedure (many loops instead of repeated    code segments)  H The author (i.e., me :-) does not warrant the software but error reportsG may be sent via e-mail. There even is a real chance that suggestions or 0 enhancement requests get implemented eventually.  
 Michael Unger 