M

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M (also called MUMPS) is the programming language used for VistA.

See Also

There are several implementations of MUMPS:

  • M/Cache Cache from InterSystems Corporation (proprietary,commercial)
  • M/DSM-11 from Digital Equipment on PDP-11
  • M/FreeM from John Willis
  • M/GT.M GT.M from Fidelity (open source, commercial)
  • M/IRIS IRIS from InterSystems Corporation (proprietary, commercial)
  • M/ISM-11 from InterSystems on PDP-11
  • M/MVX from InterSystems on VAX/VMS
  • M/RSM Reference Standard M from David Wicksell
  • M/VAXDSM from Digital Equipment Corporation (DEC) on VAX/VMS
  • M/YottaDB YottaDB from YottaDB.com (open source, commercial)

Definition of the Language

Any program written in M (MUMPS) that is stated as being written in Standard M must conform to the ANSI X11.1 or ISO standard for the language.

Any implementation of M (MUMPS) that is to be qualified as Standard M must conform to the same standard.

Templates

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Sub pages

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Category:M/sub-site Category:MUMPS/sub-site

WIP (Work In Progress)

Factoids about M

  1. The M ways that can affect the value in a local or global variable are: M/FOR, M/KILL, M/MERGE, M/NEW, M/QUIT, M/READ, M/SET, M/NEW, M/TRESTART, M/TROLLBACK,
  2. passing as an argument using M/DO or $$ or M/JOB,
  3. the $INCREMENT function and any non-standard syntax
  4. any implementation-specific semantics such as M/BREAK, M/CLOSE, M/OPEN, M/USE, M/VIEW, Y* and Z*
  5. There are other ways SSVNs and Intrinsic variables can be changed not listed here.