Recent questions tagged lr-parser

Every LL(1) grammar is ______A.SLR(1)B.LALR(1)C.LR(1)D.Both B & C

Do every LR(1) grammar have DPDA?

Consider a Context Free Grammar GI - if G is not Suitable for Top Down Parser then it is also not suitable for LR parsers Family.II - if G is not Suitable for Top Dow...

8:14 AM37\%Deepali bansal's doubt7 hrsJaipurCompiler DesignCS \& IT EnggWhere €,; IF THEN and all capital letters are terminal and stmt, ifstmt, whilestmt and bexpr are n...

How many states are there in CLR parsing table for the given grammar? $\qquad$\[\mathrm{S} \rightarrow \mathrm{~S} \mathrm{~S}+\left|\mathrm{S} \mathrm{~S}^{*}\right| \ma...

The given grammar is:\[\mathrm{G}=\{(\mathrm{S}),\{\mathrm{a}, \mathrm{~b}\},\{\mathrm{S} \rightarrow \mathrm{SaS}, \mathrm{~S} \rightarrow \mathrm{~b}\}, \mathrm{S}\}\]L...

Consider the grammar\[\begin{array}{l}\mathrm{S} \rightarrow \mathrm{AS} \mid \mathrm{b} \\\mathrm{~A} \rightarrow \mathrm{SA} \mid \mathrm{a}\end{array}\]The grammar is ...

Q69. Form a CLR parsing DFA of the following Grammar:\[\mathrm{S} \rightarrow \mathrm{SS}+|\mathrm{SS} *|_{\mathrm{a}}\]Which of the following state is a valid state of t...

What is the difference between $SLR(1)$ and $LALR(1)$ parser ? Both parser have same parsing table then how $SLR$ is subset of $LALR$ ?

it is confirmed that every LL(1) is LR(1) i.e CLR(1),but i want to know that is every LL(1) grammar is also LALR????? becz LALR is subset of CLR(1).

Which of the following grammar is LR (1) ?(A) A a A b, A b A b, A a , A b(B) A a A a, A a A b, A c(C) A A + A, A a(D) Both (A) and (B)

#self_doubtWhile representing the canonical collection of LR(0) or LR(1) items why first augmented production is added in state diagram??

Can the following grammar be parsed by LR(0) parser?E - E+id | idIs the accept state entry considered on all the terminal symbol columns for LR(0) parser?

LL(1) parser cannot accept nondeterministic grammar at we have only single lookahead and there can be no predictable parsing in this case. Suppose we have LL(n) and we a...

Can we have a grammar $G$ which is $LL(1)$ but not $SLR(1)$ ,If so given example grammar

ANSWER IS CORRECT BU I HAVE DOUBT IN A - .Ab, a/bI think it must be A - .Ab ,a

Consider the grammar given$S\rightarrow AA$$A\rightarrow aA / b$How many entries will be blank in the GOTO table for SR(0) items?

The power of parsers is as follows:CLR(1) LALR(1) SLR(1) LR(0) LL(1)Can we say that if a language is not parsed by powerful parser then less powerful parsers can't pa...

If shift-reduce conflicts occur in LALR(1) parsers(like yacc,etc).Who gets the higher precedence?shift or reduce?

Consider the grammar :$S\rightarrow SS+ | SS* | a$Which of the following is true:A) SLR(1) but not LL(1)B) LALR(1) but not SLR(1)C) LR(1) but not LALR(1)D) Neither LL(1)...

If a grammar is LL(1) then it would be definitely CLR(1) i.e. LR(1) or LALR(1)

According to my understanding, we LALR is constructed by reducing LR(1) automaton states. So I think it should be LR(1)However, we construct SLR(1) items from the LR(0) a...