Top-Down Parsing/Exercise 11: Test 2014/04/10

Problem

Consider the following grammar, where S is the initial symbol and {v, w, x, y, z} is the set of terminal symbols:

S → M y S x | L y | ε
L → w L | S v
M → z | x

1. Examine the grammar and rewrite it so that an LL(1) predictive parser can be built for the corresponding language.
2. Compute the FIRST and FOLLOW sets for all non-terminal symbols in the new grammar and build the parse table.
3. Show the analysis table (stack, input, and actions) for the parsing process of the zyvyx input sequence.

Solution