Thank you all for the suggestions. Hi Ww, Adding an extra (), then ending ) is missing. Any ideas? 
Test 1 :

sp  = .A(~(B & C & ( D | (E & F) ))),
pin = A
sig = ~(B & C & ( D | (E & F) ))

Test 2 : 

sp  = .A(~((B & C & ( D | (E & F) )))),
pin = A
sig = ~((B & C & ( D | (E & F) ))

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In reply to Re^2: Parsing Strings by doofus
in thread Parsing Strings by doofus

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