Recent questions tagged ll-parser

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ISNT THIS LL1 PARSING TABLE WRONG??SINCE first of S is {a,b} S- AB should be written is column a and b both..
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Which of the following statements is/are true?$\text{LL(1)}$ parser uses backtrackingFor a grammar to be $\text{LL(1)}$, it must be left-recursiveFor a grammar to be $\te...
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Consider the following simple context-free grammars: Grammar G₁ Grammar G2 Grammar G3S → AA → εA → bbA S → AA → εA → bAb S → AA → εA → Abb  The start symbols are S, the n...
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S - i E t S S' | aS' - e S | ϵE - bHow to convert this grammar to LL(1) grammar?
20 20 votes
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Consider the following context-free grammar where the start symbol is $\text{S}$ and the set of terminals is $\{a, b, c, d\}$.$$\begin{array}{l}S \rightarrow A a A b \mid...
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The grammar shown below is LL(k) for some value of k. What is the smallest value of k for which this grammar is LL(k)?
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Q1. For the following grammar N - AB | BA A - a | CAC B - b | CBC C - a | b Find the FIRST and FOLLOW
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A) $S\rightarrow aA\mid bBa$ $A\rightarrow bA\mid a$ $ B\rightarrow aB\mid \varepsilon$B) $S\rightarrow Aa\mid Bb$ $ A\rightarrow \varepsilon $ $ B\rightarrow...
0 0 votes
1 1 answer
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we know that LL(1)$\subseteq$ LR(1) LL(2)$\subseteq$ LR(2) LL(3)$\subseteq$ LR3) LL(4)$\subseteq$...
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Consider the following $\text{LL(1)}$ grammar.$$\begin{aligned}& \text{S} \rightarrow \text{A} \\& \text{A} \rightarrow \mathbf{a} \text{BE} \\& \text{B} \rightarrow \mat...
0 0 votes
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"Every Regular Grammar has a Right linear grammar and this is LL(1)"What is meaning of this statement exactly and does it hold always?My Assumptions:If a grammar is right...
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0 0 votes
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What is the difference between recursive descent parser and ll(1) parser, since in both no left recursion and left factoring is allowed…..then what is the advantage of us...
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Show that the following grammar:$S\rightarrow SA\mid A$$A\rightarrow a$is SLR(1) but not LL(1).
2 2 votes
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Show that the following grammar:$S\rightarrow AaAb\mid BbBa$$A\rightarrow \epsilon$$A\rightarrow\epsilon$is LL(1) but not SLR(1).
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0 0 votes
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S → aSbS /bSaS / ϵS → aABb A→ c/ ϵ B → d/ ϵWhich of the following is LL1. Explain in details.
1 1 vote
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$L=\{x^n:n \in N\} \cup\{x^ny^n|n \in N\}$This language does not have LL(k) parser while being deterministic context free.Why?
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Get LL(1) parsing table for the following grammarA aCDq / aBgC p /Ct / BD / rABD dB >e
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Construct the predictive parsing table for the grammar and tell whether the grammar is LL(1) or notS (L) / aL L, S / S
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We know that a grammar is contain1-left recursive2-ambiguous3-Common prefixThen grammar is not LL(1) If let I constructed M-TABLE or PARSE TABLEof grammar which is not co...