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Left associativity declaration left - PowerPoint PPT Presentation

Top-Down Parsing

Top-Down Parsing

Top-Down Parsing. ICOM 4036 Lecture 6. Review. A parser consumes a sequence of tokens s and produces a parse tree Issues: How do we recognize that s ? L(G) ? A parse tree of s describes how s ? L(G) Ambiguity: more than one parse tree (interpretation) for some string s

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745 views • 56 slides
Top-Down Parsing

Top-Down Parsing

Top-Down Parsing. ICOM 4029. Review. A parser consumes a sequence of tokens s and produces a parse tree Issues: How do we recognize that s ? L(G) ? A parse tree of s describes how s ? L(G) Ambiguity: more than one parse tree (interpretation) for some string s

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778 views • 56 slides
Top-Down Parsing

Top-Down Parsing

Top-Down Parsing. ICOM 4036 Lecture 5. Review. A parser consumes a sequence of tokens s and produces a parse tree Issues: How do we recognize that s ? L(G) ? A parse tree of s describes how s ? L(G) Ambiguity: more than one parse tree (interpretation) for some string s

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564 views • 56 slides
Grammars and ambiguity

Grammars and ambiguity

Grammars and ambiguity. CS164 3:30-5:00 TT 10 Evans. Overview. derivations and parse trees different derivations produce may produce same parse tree ambiguous grammars what they are and how to fix them. Recall: derivations and parse trees. A derivation is a sequence of productions

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598 views • 35 slides
Grammars and ambiguity

Grammars and ambiguity

Grammars and ambiguity. CS164 3:30-5:00 TT 10 Evans. Overview. derivations and parse trees different derivations produce may produce same parse tree ambiguous grammars what they are and how to fix them. Recall: derivations and parse trees. A derivation is a sequence of productions

★ ★ ★ ★ ★

379 views • 35 slides

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