PPT-Regular Expressions and Command-line

Text Searching Michael T Goodrich University of California Irvine Regular Expressions Regular expressions are an algebraic way of describing text patterns Regular expressions support powerful searches. Reservation points have no other relationship with or com parison to vacation points and are established for convenience of reference only Reservation points are per person based on double occupancy and apply to 1 st and 2 nd passenger Ranges shown analysis. David Kauchak. CS159 – Spring 2011. Administrivia. Assignment 0 due today. article discussion. Assignment 1 out soon. due Wednesday, 2/2 in class. no code submitted, but will require coding. Lecture 18. Recursive Definitions: Regular Expressions,. Context-Free Grammars and Languages. Spring 2013. 1. Announcements. Reading assignments. 7. th. Edition, pp. 878-880 and pp. 851-855. 6. th. Chapter . 16. Deciphering the Command Line interface. Shells. Accessing the Command-Line Interface. cmd. Accessing the Command-Line Interface in Mac OS X and Linux. terminal. The Command Prompt. C:\> username:/home. August . 15, 2013. Angel X. Chang. TokensRegex. Regular expressions over tokens. Library for matching . patterns over tokens. Integration with . Stanford . CoreNLP. . pipeline. access . to all . annotations. Albert Gatt. Corpus search. These notes . introduce. some practical tools to find patterns:. regular expressions. the . corpus query language (CQL). :. developed by the Corpora and Lexicons Group, University of Stuttgart. ROBOT THEATRE. Theory of Robot Theatre?. Professor Einstein. Schr. ö. dinger Cat . On . Synthesis and Verification from Event Diagrams in a Robot . Theatre. Marek. . Perkowski. , . Aditya. . Bhutada. Python for Everybody. www.py4e.com. Regular Expressions. http://en.wikipedia.org/wiki/Regular_expression. In computing, a regular expression, also referred to as . “. regex. ”. or . “. regexp. Regular Expressions Pattern Matching in Strings February 13, 2019 Regular Expressions 1 More about strings In a previous lecture, we discussed the String class and its methods Powerful class with many Chapter 3 REGULAR LANGUAGES AND REGULAR GRAMMARS Learning Objectives At the conclusion of the chapter, the student will be able to: Identify the language associated with a regular expression Find a regular expression to describe a given language CS159 – Spring 2011. Administrivia. Assignment 0 due today. article discussion. Assignment 1 out soon. due Wednesday, 2/2 in class. no code submitted, but will require coding. Send me an e-mail if you’d like me to e-mail announcements to another account besides your school account. AntConc concordance tool. University of Bucharest. Digital Humanities Master. February 2020. Anca Dinu. Regular expressions. In corpus linguistics. much of what we want to do . with a tool. is pattern-matching over texts/corpora. Regular expressions are made up of. Literal characters to match in the . string like “. abc. ”. Metacharacters . are characters that specify how we can interpret a sequence of literal . characters. 2. Regular Expressions vs. Finite Automata. Offers a declarative way to express the pattern of any string we want to accept . E.g., . 01*+ 10*. Automata => more machine-like . < input: string , output: [accept/reject] >.