Synthesized-and-L-Attribute

Question 1

Let the attribute 'val' give the value of a binary number generated by S in the following grammar: 

S → L.L | L 
L→ LB | B 
B → 0 | 1

For example, an input 101.101 gives S.val = 5.625

Construct a syntax directed translation scheme using only synthesized attributes, to determine S.val.

A
Theory Explanation.
Compiler-DesignSynthesized-and-L-AttributeGATE 1998
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