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...

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)...

some context-free grammars and parsing expression grammars Recursive descent parser: a top-down parser suitable for LL(k) grammars Shunting-yard algorithm:...

In computer science, a parsing expression grammar (PEG) is a type of analytic formal grammar, i.e. it describes a formal language in terms of a set of...

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

the grammar. The LALR(j) parsers are incomparable with LL(k) parsers: for any j and k both greater than 0, there are LALR(j) grammars that are not LL(k)...

context-free grammars there are well-known algorithms to generate efficient LL parsers and LR parsers to recognize the corresponding languages those grammars generate...

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...

and works down the parse tree by using the rewriting rules of a formal grammar. LL parsers are a type of parser that uses a top-down parsing strategy. Top-down...

often used. These grammar classes are referred to by the type of parser that parses them, and important examples are LALR, SLR, and LL. In the 1960s, theoretical...

parentheses. (This is typically handled by a Chomsky Type 2 grammar, also termed a context-free grammar.) Context-free languages are a category of languages...

to declarations and scope. Often a subset of grammars is used to make parsing easier, such as by an LL parser. For example, the context-free language...

descent; LL(1) conflicts can be resolved by either a multi-symbol lookahead or by semantic checks. Thus the class of accepted grammars is LL(k) for an...

specifies the syntactic validity of applying a production in a formal grammar and is analogous to a semantic predicate that specifies the semantic validity...

Dependency grammar (DG) is a class of modern grammatical theories that are all based on the dependency relation (as opposed to the constituency relation...

Auckland Grammar School (often simplified to Auckland Grammar, or Grammar), established in 1869, is a state, day and boarding secondary school for boys...

binghamton.edu/~zdu/zyacc/doc/zyacc_4.html Reinhard Wilhelm: LL- and LR-Attributed Grammars. Programmiersprachen und Programmentwicklung, 7. Fachtagung...

May 2016. Huddleston, Rodney; Pullum, Geoffrey K. (2002). The Cambridge Grammar of the English Language. Cambridge: Cambridge University Press. p. 91....

solution, because LALR(1) grammars are more powerful than SLR(1), and can parse most practical LL(1) grammars. LR(1) grammars are more powerful than LALR(1)...

special attribute of this parser is that any LR(k) grammar with k>1 can be transformed into an LR(1) grammar. However, back-substitutions are required to reduce...

generators for LL top-down parsers. A grammar that has no shift/reduce or reduce/reduce conflicts when using follow sets is called an SLR grammar. [citation...

) Descriptive grammars of English differ slightly on the criteria they set for modal auxiliary verbs. According to The Cambridge Grammar of the English...

(depending on the variant) it may suffer problems with certain nullable grammars. The algorithm, named after its inventor Jay Earley, is a chart parser...

presents the strongest barrier to comprehension[citation needed], the grammar of Neapolitan is what sets it apart from Italian. In Neapolitan, for example...

and l.l were used in the past for printing. Besides dialectal words, the "ḥ" is also used in some loanwords: ḥoquei (hockey). Asturian grammar is similar...