prompt1/1

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Predicate prompt1/1

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Availability:built-in

prompt1(?Prompt)

Sets the prompt for the next line to be read. Continuation lines will be read using the prompt defined by prompt/2. If Prompt is unbound it is unified with the current first-line prompt.

History

Fixed in 9.3.21 (👉4bbab70) prompt1/1 called in mode (-) must fail if there is no "first" prompt.