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O que (quem) é unambiguous grammar - definição

AMBIGUITY IN GRAMMAR

Ambiguous grammars; Inherently ambiguous language; Unambiguous grammar; Unambiguous context-free grammar; Ambiguous context-free grammar

Ambiguous grammar

In computer science, an ambiguous grammar is a context-free grammar for which there exists a string that can have more than one leftmost derivation or parse tree, while an unambiguous grammar is a context-free grammar for which every valid string has a unique leftmost derivation or parse tree. Many languages admit both ambiguous and unambiguous grammars, while some languages admit only ambiguous grammars.

https://en.wikipedia.org/wiki/Ambiguous_grammar

Tagalog grammar

GRAMMAR OF THE TAGALOG LANGUAGE

Filipino grammar; Tagalog Grammar; Filipino Grammar

Tagalog grammar (Tagalog: Balarilà ng Tagalog) is the body of rules that describe the structure of expressions in the Tagalog language, the language of the Tagalog region of the Philippines.

https://en.wikipedia.org/wiki/Tagalog_grammar

Ilocano grammar

GRAMMAR OF ILOCANO, A NORTHERN PHILIPPINE LANGUAGE

Iloko grammar; Iloco grammar; Ilokano grammar

Ilocano grammar is the study of the morphological and syntactic structures of the Ilocano language, a language spoken in the northern Philippines by ethnic Ilocanos and Ilocano communities in the US, Saudi Arabia and other countries around the globe.

https://en.wikipedia.org/wiki/Ilocano_grammar

Wikipédia

Ambiguous grammar

In computer science, an ambiguous grammar is a context-free grammar for which there exists a string that can have more than one leftmost derivation or parse tree. Every non-empty context-free language admits an ambiguous grammar by introducing e.g. a duplicate rule. A language that only admits ambiguous grammars is called an inherently ambiguous language. Deterministic context-free grammars are always unambiguous, and are an important subclass of unambiguous grammars; there are non-deterministic unambiguous grammars, however.

For computer programming languages, the reference grammar is often ambiguous, due to issues such as the dangling else problem. If present, these ambiguities are generally resolved by adding precedence rules or other context-sensitive parsing rules, so the overall phrase grammar is unambiguous. Some parsing algorithms (such as (Earley or GLR parsers) can generate sets of parse trees (or "parse forests") from strings that are syntactically ambiguous.

https://en.wikipedia.org/wiki/Ambiguous grammar