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| Allegro CL

| 9 Conditions 9.1 Condition System Concepts 9.1.3 Printing Conditions 9.1.3.1 Recommended Style in Condition Reporting ### 9.1.3.1.2 Leading and Trailing Newlines in Condition Reports It is recommended that a report message not begin with any introductory text, such as "`Error:` " or "`Warning:` " or even just freshline or newline. Such text is added, if appropriate to the context, by the routine invoking the condition reporter. It is recommended that a report message not be followed by a trailing freshline or newline. Such text is added, if appropriate to the context, by the routine invoking the condition reporter.
     (error "This is a message.~%")   ; Not recommended
     (error "~&This is a message.")   ; Not recommended
     (error "~&This is a message.~%") ; Not recommended

     (error "This is a message.")     ; Recommended instead

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