Hi Perl Monks, Hi Perl Monks,

A program I am working on is parsing text to extract anything enclosed in curly or straight brackets. However it should not extract {} or [] (empty enclosures)

For instance if the input line is:

EntityMappingFetchByName?[](EntityName$ = DERIVED_ATTRIBUTE_TABLE, Fie +ldNames$[] = [ USER_ENTITY_NAME ], text${} = { this is a test }), lin +e 6
should return "[ USER_ENTITY_NAME ]" and "{ this is a test }" only. When I use this pattern:

((\{.+?\})|(\[.+?\])) in a while loop

I get:

MATCH = [](EntityName$ = DERIVED_ATTRIBUTE_TABLE, FieldNames$[] MATCH = [ USER_ENTITY_NAME ] MATCH = {} = { this is a test }

Whatever I try, the expression always seems to be greedy. How do I make the expression not greedy and skipping empty {} and []?

Thanks for your answers


In reply to Regular expressions: Extracting certain text from a line by Wcool

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