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ABENPREDICATE_FUNCTIONS_STRINGS1 - PREDICATE FUNCTIONS STRINGS1

ABENPREDICATE_FUNCTIONS_STRINGS1 - PREDICATE FUNCTIONS STRINGS1

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matches - Predicate Function

Syntax

... matches( val = text regex = regex [case = case]
             [off = off] [len = len] ) ...

Effect

The predicate function matches compares a search range of the argument text, defined using off and len, with the regular expression specified in regex. A corresponding truth value is returned. The return value is true when the whole search range matches the regular expression. The case is taken into account by default for the comparison but this can be overridden using the case parameter.

The argument text is a character-like expression position in which the closing spaces of character-like arguments with fixed length are not taken into account. regex is a character-like expression position. For case, off, and len the same applies as for the search functions.

Notes

  • The match function match can be used to return a subfield that matches a regular expression.

Example

See Predicate Function, matches






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