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scan_statement [2021/02/08 18:16]
revusky
scan_statement [2021/08/07 08:21] (current)
revusky [The SCAN construct also you to use contextual predicates.]
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-==== The SCAN construct also you to use contextual predicates. ====+==== The SCAN construct allows you to use contextual predicates. ====
  
 The [[contextual_predicates]] construct allows you to express conditions based on scanning backwards in the lookahead/call stack. This can only be used in conjunction with the newer ''SCAN'' statement, not with the legacy ''LOOKAHEAD'' construct.  The [[contextual_predicates]] construct allows you to express conditions based on scanning backwards in the lookahead/call stack. This can only be used in conjunction with the newer ''SCAN'' statement, not with the legacy ''LOOKAHEAD'' construct. 
scan_statement.txt · Last modified: 2021/08/07 08:21 by revusky