In formal language theory, an LL grammar is a context-free grammar that can be parsed by an LL parser, which parses the input from Left to right, and constructs...

An LL parser is called an LL(k) parser if it uses k tokens of lookahead when parsing a sentence. A grammar is called an LL(k) grammar if an LL(k) parser...

it can be generated from the grammar. An Earley parser is an example of such an algorithm, while the widely used LR and LL parsers are simpler algorithms...

input. The LL(k) grammars therefore exclude all ambiguous grammars, as well as all grammars that contain left recursion. Any context-free grammar can be transformed...

time, the simple LALR parser and even simpler LL parser are more efficient, but can only parse grammars whose production rules are constrained. In principle...

class of grammars which are parsable in this way is known as the LL grammars. LL grammars are an even more restricted class of context-free grammars than...

Auckland Grammar School (often simplified to Auckland Grammar, or Grammar) is a state, day and boarding secondary school for boys in Epsom, Auckland, New...

However, it differs because it takes parsing expression grammars (PEGs) as input rather than LL grammars. In 1970, Alexander Birman laid the groundwork for...

SLR grammars are the class of formal grammars accepted by a Simple LR parser. SLR grammars are a superset of all LR(0) grammars and a subset of all LALR(1)...

and grammars than precedence parsers or top-down LL parsing. This is because the LR parser waits until it has seen an entire instance of some grammar pattern...