RFC 194 (rfc194) - Page 1 of 18

The Data Reconfiguration Service -- Compiler/Interpreter Implementation Notes

Alternative Format: Original Text Document

Vint Cerf - UCLA

                                      Eric Harslem - Rand

RFC 194                               John Heafner - Rand
NIC 7139
Category: D.4                         Bob Metcalfe - MIT
Updates: None
Obsoletes: None                       Jim White - UCSB


                  THE DATA RECONFIGURATION SERVICE --

               COMPILER/INTERPRETER IMPLEMENTATION NOTES


                    I.  NEW FEATURES OF THE LANGUAGE

1.   The meaning of S(#,E,,l) is only find an arbitrary
     number  (<=256) of EBCDIC characters and store them in
     identifier S.  This descriptor is terminated only by
     an invalid EBCDIC or by exceeding maximum permissible
     character count (256).
2.   The assignment (S .<=. T) causes all attributes of
     identifier T to be given to S, i.e., length, type,
     and contents.
3.   (S .<=. T || X) concatenates X onto the right-hand
     side of T and stores the result in S.  If T and X
     are binary the resulting value has a length equal
     to the sum L(T) + L(X).
4.   T(X) joins L(X) and V(X) as a built-in identifier
     function.
     T(X) = type of identifier X.
     L(X) = length of contents of X.
     V(X) = contents of X converted to binary
            (decimal - binary is presently the only
            transformation).
5.   New types ED and AD are EBCDIC and ASCII encoded
     decimal, respectively.  These have been added to
     complement the V(X) function.
6.   New type SB has been added as signed binary.  Type B
     is a logical binary string.
7.   The syntactic notation for return-from-a-form has
     been changed.  See new syntax.

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