USERINIT will allow for a user written procedure to return a string which is executed as the first command(s) when an EDIT/3000 process is begun. SET commands (see Section III), for example, could be specified. In addition, the value returned (logical 0,1,2,or 3) determines if none, one, or both of the other two procedures (USERCOMMAND and USERADD) are to be invoked.
This procedure is called each time the user has initiated an EDIT/3000 process by using the MPE command
:RUN EDITOR.PUB.SYS; PARM=16
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The parameters for this procedure are as described in paragraph 6-1. STRING contains the characters of a command line, which may consist of only one command or of multiple commands separated by semicolons. The first character of the array STRING must be a semicolon and the array must be terminated by an ASCII carriage return (%15).
A logical 3 (or TRUE) should be returned if both USERCOMMAND and USERADD are to be invoked. Returning logical 2 results in invoking only USERADD, while returning a logical 1 invokes only USER- COMMAND. If logical 0 (or FALSE) is returned, calls to these other procedures will not be executed. It is the procedure's responsibility to inform the user of which commands are executed when EDIT/3000 is
begun and whether the other procedures are invoked or not.
See the example in paragraph 6-5.
