☜	DO 1977 Version of ANSI Standard					☞

3.6.3 DO

D[O] postcond doargument

DO is a generalized subroutine call. Each doargument is executed, one at a time in left-to-right order. Execution of a doargument is described below.

1. If postcond is present and false, execution of the doargument is complete at this point. If postcond is absent, or present and true, proceed to the following step.
2. Before proceeding to the next argument of this DO or to the command following this DO, execution continues at the left end of the line specified by the entryref. Execution returns to the argument or command following this argument upon encountering an executed QUIT or eor not within the scope of a subsequently executed doargument or FOR. The scope of this doargument extends to the execution of that QUIT or eor.

See also the transition diagram for Do.

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Copyright © Examples: 1995-2024 Ed de Moel;
Copyright © Annotations: 2003-2008 Jacquard Systems Research
Copyright © Annotations: 2008-2024 Ed de Moel.

This page most recently updated on 15-Nov-2023, 14:41:58.

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