Scanner construction - PowerPoint PPT Presentation

Scanner wrap-up and Introduction to Parser

Scanner wrap-up and Introduction to Parser. Automating Scanner Construction. RENFA (Thompson’s construction) Build an NFA for each term Combine them with -moves NFA DFA (subset construction ) Build the simulation DFA Minimal DFA (today)

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555 views • 46 slides

Quick Review

tables or code. Quick Review. Previous class: The scanner is the first stage in the front end Specifications can be expressed using regular expressions Build tables and code from a DFA. source code. parts of speech &amp; words. Scanner. specifications. Scanner Generator. Goal.

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319 views • 18 slides

Lexical Analysis Constructing a Scanner from Regular Expressions

Lexical Analysis Constructing a Scanner from Regular Expressions. tables or code. Quick Review. Previous class: The scanner is the first stage in the front end Specifications can be expressed using regular expressions Build tables and code from a DFA. source code. parts of speech &amp; words.

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353 views • 17 slides

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