Q3. Convert the following recursive BNF grammar to EBNF: (20%) <assign>-> <id> = <expr> <expr> ->...
Considering the following BNF grammar, answer the questions. <prog> - <assign> | <expr> <assign> = <id> = <expr> <expr> := <expr> + <term> | <expr> - <term> | <term> <term> := <factor> | <factor> * <term> <factor> ::= ( <expr> ) | <id> | <num> <id>::= ABC <num> := 0|1|2|3 2a - What is the associativity of the * operator? (5 points) 2b - For the * and + operators, do they have the same precedence, does the * operator...
Question 9 (10 points) Consider the following EBNF grammar for a "Calculator Language": <calculation> <expr> = <expr> > <term> (+1-) <expr> <term <term> <factor> (* ) <term> <factor> <factor> > (<expr>) value> <value> → [<sign> ] <unsigned [. <unsigned> ] <unsigned> <digit> { <digit> } <digit → 011121314151617189 <sign → + - which of the following sentences is in the language generated by this grammar? Whx.2 a. 3/+2.5 = b. 5- *3/4= c. (3/-2) + 3 = d. 5++3 =
Question 9 (10 points) Consider the following EBNF grammar for a “Calculator Language": <calculation> → <expr>= <expr> <term> (+1-) <expr> <term> <term> <factor> (* ) <term> <factor> <factor> → (<expr>) <value> <value> → [<sign> ] <unsigned> [. <unsigned> ] <unsigned> <digit> { <digit> } <digit> → 01|2|3|4|567| 8 | 9 <sign> → +|- which of the following sentences is in the language generated by this grammar ? Why? a. 3/+2.5 = b. 5-*3/4= c. (3/-2) + 3 = d. 5...
- Using the grammar in Example 3.2, show a parse tree and a leftmost derivation for the following statement: B = C * (A * (B + C)). EXAMPLE 3.2 A Grammar for Simple Assignment Statements <assign> → <id> = <expr> <id> → A | B | C <expr> → <id> + <expr> | <id> * <expr> | ( <expr> ) | <id>
Question Set 2 1. Given the following grammar dactor>-> ( <expr> ) a) What is the associativity of each of the operators? What is precedence of the operators? Show a leftmost derivation and parse tree for the following sentence: b) c) A-A(B(C A)) d) Rewrite the BNF grammar above to give precedence over and force to be right associative.
Question Set 2 1. Given the following grammar dactor>-> ( <expr> ) a) What is the associativity of each of the operators? What is precedence of the operators? Show a leftmost derivation and parse tree for the following sentence: b) c) A-A(B(C A)) d) Rewrite the BNF grammar above to give precedence over and force to be right associative.
2. Consider the following grammar: <assign> à <id> = <expr> <id> à A | B | C <expr> à <id> + <expr> | <id> * <expr> | ( <expr> ) | <id> Show a parse tree and leftmost derivation for the following statements: (a) A = ( A + B ) * C (b) A = A * ( B + C ) 3. [10 Points] Show that the following grammar is...
2. Given is the following BNF grammar: < comp op > ''<' I ''<-'' I 'ל'' I ''>-'' I ''--'' I '''-'' -> arith op 〉 → + 1-1 * 1/ < paren〉 → "(" I ") " token 〉 → 〈 comp op 〉 | 〈 arith op 〉 I 〈 paren 〉 Construct a DFA that accepts the strings in < token 〉.
Use the grammar given below and show a parse tree and a leftmost derivation for each of the following statements. 1. A = A * (B + (C * A)) 2. B = C * (A * C + B) 3. A = A * (B + (C)) <assign> → <id> <expr> = <expr> → <id> + <expr> kid<expr> <expr>) ids
Consider the following grammar <word>= empty string<word><dash> |<ch><word><ch> <ch> AB <dash> = - Provide a recursive recognition method isIn(strg) that return true if the string strg is in this language and returns false otherwise