Fix #3156: Reject bracketed terms as functors#3203
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jjtolton wants to merge 1 commit intomthom:masterfrom
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Fix #3156: Reject bracketed terms as functors#3203jjtolton wants to merge 1 commit intomthom:masterfrom
jjtolton wants to merge 1 commit intomthom:masterfrom
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Prevents patterns like ((>)(1) from incorrectly parsing as >(1). A bracketed term (BTERM) cannot be used as a functor name - only atoms can be functors per ISO Prolog syntax rules.
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Summary
Fixes #3156 - Prevents patterns like
((>)(1)from incorrectly parsing as>(1).A bracketed term (BTERM) cannot be used as a functor name - only atoms can be functors per ISO Prolog syntax rules.
Changes
reduce_term()to reject BTERM as functorTest Cases
((>)(1).>(1)❌((a)(b).a(b)❌(a) (b).a(b).a(b)a(b)✓a(b)✓(a).aa✓a✓((>)).(>)(>)✓(>)✓Testing
All 36 tests pass.