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scan_statement [2021/02/08 18:09]
revusky ↷ Links adapted because of a move operation
scan_statement [2021/02/08 18:16] (current)
revusky
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-==== The SCAN construct also allows the newer LOOKBEHIND construct. ====+==== The SCAN construct also 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: 2021/02/08 18:16 by revusky