Right-recursion to transform a repeated sequence of symbols

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As discussed in Section 4.3, the algorithm in Figure 4.4 could use left or right-recursion to transform a repeated sequence of symbols into standard grammar form. A production of the form A→A α is said to be left recursive. Similarly, a production of the form A →ß A is said to be right recursive. Show that any grammar that contains left- and right-recursive rules for the same LHS nonterminal must be ambiguous.

Figure 4.4

Reference no: EM131096491

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