Given a grammar of the form: -> | | > 0 | 1 | 2 |......
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Given a grammar of the form: <S> -> <D> | <!S> | <S> <S> <S> <S> <D> > 0 | 1 | 2 |... 9 where ! means negation (i.e., !3 means -3, !7 means -7 and so on). 1. Derive the string !!9+4-12 and evaluate it arithmetically (assume standard arithmetic mean- ings for all terminals while evaluating). 2. State whether it is ambiguous or unambiguous. If it is ambiguous give an equivalent unam- biguous grammar. If it is unambiguous, states all the precedences and associativities enforced by the grammar. Given a grammar of the form: <S> -> <D> | <!S> | <S> <S> <S> <S> <D> > 0 | 1 | 2 |... 9 where ! means negation (i.e., !3 means -3, !7 means -7 and so on). 1. Derive the string !!9+4-12 and evaluate it arithmetically (assume standard arithmetic mean- ings for all terminals while evaluating). 2. State whether it is ambiguous or unambiguous. If it is ambiguous give an equivalent unam- biguous grammar. If it is unambiguous, states all the precedences and associativities enforced by the grammar.
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Step 1 Given Grammar 0 1 2 9 This grammar generates arithmetic expressions with operators sum subtra... View the full answer
Related Book For
Income Tax Fundamentals 2013
ISBN: 9781285586618
31st Edition
Authors: Gerald E. Whittenburg, Martha Altus Buller, Steven L Gill
Posted Date:
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