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The Computer Journal 1970 13(2):142-144; doi:10.1093/comjnl/13.2.142
© 1970 by British Computer Society
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A note on transforming context-free grammars to Wirth-Weber precedence form

A. Learner1 * and A. L. Lim2 §

1 Department of Mathematics, Queen Mary College, London, UK, 2 Centre for Computing and Automation, Imperial College, London, UK

It is shown that every context-free grammar can be transformed into an equivalent Wirth-Weber precedence grammar. A general algorithm for the transformation is given. This is followed by a description of a practical program.

Received July 1969.

* Department of Mathematics, Queen Mary College, London E1

§ Centre for Computing and Automation, Imperial College, London SW7


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