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OMI- Global Reference

1995 Version of ANSI (Equivalent to Current ISO Version) of Standard

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5.3.3 Global reference

4.1 describes the environment, the global variable name (gvn) and the lock argument (nref) that appear in many OMI messages, where they have the following form, called a global reference.

A global reference shall be a long string <LS>. Its fields shall be strings containing the environment, global name and subscripts.

Note – The protocol does not support MUMPS naked references. The agent shall send full references for all operations.

The fields of the global reference and their sequence shall be:

  1. Environment: <LS> denotes the server's environment for this global reference. See 4.1 and 4.7.
  2. Name: <SS> The name shall include a leading caret as shown in 4.1.
  3. Subscript(s): <SS> 0 or more subscripts. Each shall be a short string, thus limited to 255 characters. Numeric subscripts shall appear as ASCII characters, not as binary numbers or other internal representation.

Note – The number of subscripts is implied by the length of the entire global reference, a long string <LS>.

<LS> <SS> <SS> <SS> . . .
<LI> Environment <SI> Name <SI> Sub 1 <SI> Sub 2

Figure 4 – Form of global reference

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Copyright © Standard Documents; 1977-2018 MUMPS Development Committee;
Copyright © Examples: 1995-2018 Ed de Moel;
Copyright © Annotations: 2003-2008 Jacquard Systems Research
Copyright © Annotations: 2008-2018 Ed de Moel.

This page most recently updated on 13-Sep-2014, 14:34:30 .

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