Write a pareser for the following grammar: <vardecl> ::= var <vardecllist> ; <vardecllist> ::= <varandtype> {...

Write a pareser for the following grammar:

<vardecl>     ::= var <vardecllist> ;
  <vardecllist> ::= <varandtype> { ; <varandtype> }
  <varandtype>  ::= <ident> { , <ident> } : <typespec>
  <ident>       ::= <letter> { <idchar> }
  <idchar>      ::= <letter>  |  <digit>  |  _

Expert Solution

Construction Predictive LL(1)

STEP 1) First() , Follow()

STEP 2)Parsing table

STEP 3)Stack implementation

STEP 4)Parse the i/p string

Finding first and follow

first is a set of terminal symbol that thing in string derived from grammer

First(A) = {a,d,g}

and also find left recursion

venereology answered 1 year ago

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