LL(1) Parser
For the grammar:
1. S --> TT 2. T --> aT 3. T --> b
Problems
Parse string "abab" and construct its parse tree
Bonus:
Please help me with the coding for LL(1)!! The given grammar was: P → PL | L L → N; | M; | C N → print E M → print "W" W → TW | ε C → if E {P} | if E {P} else {P} E → (EOE) | V (note: this has a variable O) O → + | - | * V → 0 | 1 | 2 | 3 (note: this has a terminal...
Question 1. (15 points) Consider the following LL (1) grammar with starting symbol S s→(ST) F → id F → num a) Compute the First and Follow sets of all non-terminals (5 points) b) Construct the LL (1) parsing table for the grammar (5 points) c) Show step-by-step (content of stack and input string, as well as the production taken) how the following string is parsed: ((20+30 + a)) (5 points)
2A. Check if the given Grammar G is LL (1) by constructing a predictive parse table Clearly specify the different steps involved during the construction of parse table. A BCg DBCe B BDb E C DCf & D ale Grammar G 4M 2A. Check if the given Grammar G is LL (1) by constructing a predictive parse table Clearly specify the different steps involved during the construction of parse table. A BCg DBCe B BDb E C DCf & D...
busi 101 2021 1 4. Consider the following grammar G: S' S SiEtS iEtSeS E b where S and E are nonterminals and i, t, e, a, and b are terminals (a) [5] Please identify the conflicts in the parsing table of G (b) [5] Build the parse tree of the word iEtiEtSeS if shift action is chosen (c) [5] Build the parse tree of the word iEtiEtSeS if reduce action is chosen mulo a busi 101 2021 1 4....
Consider the following grammar: (//some alternative rules are listed on separate lines without using symbol |): stmt −> assignment −> subr call assignment −> id := expr subr call −> id ( arg list ) expr −> primary expr tail expr tail −> op expr −> ε primary −> id −> subr call −> ( expr ) op −> + | - | * | / arg list −> expr args tail args tail −> , arg list −> ε...
busi 101 2021 1 4. Consider the following grammar G: S' S SiEtS iEtSeS E b where S and E are nonterminals and i, t, e, a, and b are terminals (a) [5] Please identify the conflicts in the parsing table of G (b) [5] Build the parse tree of the word iEtiEtSeS if shift action is chosen (c) [5] Build the parse tree of the word iEtiEtSeS if reduce action is chosen mulo a
Name: 3. (10 points) Given grammar: <program> → <stmts> Page: 2 <term> → <var> 1 const 1), write down derivation of: c-5+a 2) What are terminals and what are non-terminals in the grammar? Show a complete parse, including the parse stack contents, input string, and action for the string: id - id + id, using the grammar and parse table below. (10 points) 4. Grammar State id S4 4. T F 5. F (E) R2 S7 R4 R4 R2İR2 Parse...
5. Construct the CYK-table for the string aabb using the following grammar: S X Y Z A B + AY | 8 + AY + XZ|XB| b + XB | b → a + b
10 pt) Consider the following grammar where S is the start variable » terminals: x, y, z,t,,* non-terminals: El T, F, V * start symbol: E production rules (a) (4 pt) What is the associativity of the operators+,, * and/ explain why. (b) (3 pt) What is the precedence of , and / explain why (c) (3 pt) Given a parse tree F * T 2 2 Explain how the value of the string is generated
3 points) Question Three Consider the context-free grammar S >SS+1 SS 1a and the string aa Give a leftmost derivation for the string. 3 points) (4 poiots) (5 points) (3 points) sECTION IWOLAttcmpt.any 3.(or 2) questions from this.scction Suppose we have two tokens: (1) the keyword if, and (2) id-entifiers, which are strings of letters other than if. Show the DFA for these tokens. Give a nightmost derivation for the string. Give a parse tree for the string i) Is...