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regex

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A regular expression (shortened as regex or regexp), sometimes referred to as rational expression, is a sequence of characters that specifies a match pattern in text. Usually such patterns are used by string-searching algorithms for "find" or "find and replace" operations on strings, or for input validation.

Regular expression techniques are developed in theoretical computer science and formal language theory. They are used in search engines, in search and replace dialogs of word processors and text editors, in text processing utilities such as sed and AWK, and in lexical analysis. Regular expressions are also supported in many programming languages.

Different syntaxes for writing regular expressions have existed since the 1980s, one being the POSIX standard and another, widely used, being the Perl syntax.

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AusAura / Jason-personal-assistant-bot-team-version-

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Personal assistant that can work with address book and notes. Using currying and command parser for Adress Book. Decorator catches all possible errors. Saves data locally in JSON files. Includes Extension File Sorter as a separate sub-application. This specific version was made by team of 6 people as personal project.

datetime notebook json-data regex decorator prompt-toolkit teamwork address-book currying cli-application pipenv magic-methods command-parser userdict file-sorter
  • Updated Nov 12, 2023
  • Python

Created by Stephen Cole Kleene

Released 1950

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awk glob grep pattern-matching sed wildcard