Top "Lr" questions

LR(k) grammars are grammars that can be parsed bottom-up from the left-to-right, producing a rightmost derivation, using k tokens of lookahead.

How to identify whether a grammar is LL(1), LR(0) or SLR(1)?

How do you identify whether a grammar is LL(1), LR(0), or SLR(1)? Can anyone please explain it using this example, …

parsing grammar lr ll
What is the difference between LL and LR parsing?

Can anyone give me a simple example of LL parsing versus LR parsing?

algorithm parsing ll lr
What is the difference between LR(0) and SLR parsing?

I am working on my compilers concepts however I am a little confused... Googling got me nowhere to a definite …

algorithm parsing compiler-construction lr
Examples of LL(1), LR(1), LR(0), LALR(1) grammars?

Is there a good resource online with a collection of grammars for some of the major parsing algorithms (LL(1), LR(1), …

parsing grammar lalr lr ll
What is the difference between LALR and LR parsing?

I understand both LR and LALR are bottom-up parsing algorithms, but what's the difference between the two? What's the difference …

parsing compiler-construction context-free-grammar lalr lr
Why are there LR(0) parsers but not LL(0) parsers?

I've been reading on both in Wikipedia, and noticed that although LR(0) parsers exist, there's no such thing as LL(0) …

parsing compiler-construction lr ll
LR(1) Item DFA - Computing Lookaheads

I have trouble understanding how to compute the lookaheads for the LR(1)-items. Lets say that I have this grammar: …

parsing context-free-grammar lookahead dfa lr
How is this grammar LR(1) but not SLR(1)?

I have the following grammar, which I'm told is LR(1) but not SLR(1): S ::= a A | b A c | d …

parsing grammar conflict context-free-grammar lr
What advantages do LL parsers have over LR parsers?

What advantages do LL parsers have over LR parsers to warrant their relative popularity in today's parser generator tools? According …

parsing parser-generator lalr ll lr
Relationship between LR(0), LL(0), LALR(1), etc?

I'm really struggling to unterstand the relationship between: LR(0) LL(0) LALR(1) SLR(1) LR(1) LL(1) I'm pretty sure LALR(1) and SLR(1) …

parsing compiler-construction ll lr