Top-Down Parsing/Exercise 9: Difference between revisions
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Consider the following grammar, where '''<tt>A</tt>''' is the initial symbol and '''<tt>{x, y, z}</tt>''' is the set of terminal symbols: | Consider the following grammar, where '''<tt>A</tt>''' is the initial symbol and '''<tt>{v,x,y,z}</tt>''' is the set of terminal symbols: | ||
C -> v | C -> v | ||
Revision as of 07:33, 7 April 2018
Problem
Consider the following grammar, where A is the initial symbol and {v,x,y,z} is the set of terminal symbols:
C -> v A -> B x | z C A y B -> A v | z C w | (eps)
- Examine the grammar and rewrite it so that an LL(1) predictive parser can be built for the corresponding language.
- Compute the FIRST and FOLLOW sets for all non-terminal symbols in the new grammar and build the parse table.
- Show the analysis table (stack, input, and actions) for the parsing process of the zvxy input sequence.
Solution
