Re: How to

[Jean Abou Samra]

Try

#(define (should-not-print-arranger layout props)  
   (equal? "" (chain-assoc-get 'header:arranger props)))

For one thing, 'header:arranger just gives a symbol, it doesn't look up the arranger. A symbol is never equal to a string. For another, eq? is the wrong test; it checks object identity but you could have two empty strings which are equal but not the same object (unlike symbols). The links should provide more information.

Best,

Jean

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