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- Sort
-
- 1. Purpose. I modified the NAD-3 set of programs in Volume 11 to suit the
- following need. Messages and letters in the Coast Guard are marked with a
- Standard Subject Identifier Code (SSIC) and also contain a statement of the
- subject matter near the top. These two clues are the best when a radioman
- is determining who to route incoming messages to within a command
- organization. Records containing fields titled SUBJect, SSIC, Action
- addressee, Info addressee are built and updated by a modification of the
- NAD-3 program. That program collection (ALPHABET) is also used to
- alphabetize and print the list in order by subject. SORT.PAS (SRTPRT.PAS
- is the printer subroutine to facilitate quick modification) sorts the list
- by SSIC and makes a second printout. These two printouts, posted in the
- communications center, are referenced by the duty radioman.
-
- 2. The program. This is a direct descendant of the ISORTV1 program in
- Volume 4. Instead of short strings from the console, complete records from
- a file are sorted using an insertion sort. Performance in terms of
- throughput is much faster than the algorithm used in ALPHABET; not quite
- sure why, but this works well. The I/O routines are Pascal/Z, but the
- remainder should be standard.
-
- 3. Credits to Ray Penley and Craig Rudlin for the original programs. Rex
- A Buddenberg, 1910 Ash Street, North Bend, Or 97459.
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