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compile ( ''' # A name is made up of letters, and may include "." for title # abbreviations and middle initials. In Perl, with a few Python-specific enhancements. Re module is based on the syntax used for regular expressions Modifications to their advanced features. There are multiple open source implementations of regular expressions,Įach sharing a common core syntax but with different extensions or
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Other languages, such as C, C++,Īnd Python supports regular expressions through extension libraries. Languages include support for regular expressions in the language They are also an integral part of UnixĬommand line utilities such as sed, grep, and awk. Patterns in text editing programs used by developers, including vi,Įmacs, and modern IDEs. For example, they are commonly used as search Regular expressions are typically used in applications that involve a Regular expression than by creating a special-purpose lexer and A large number of parsing problems are easier to solve with a Repetition, pattern-composition, branching, and other sophisticated Expressions can include literal text matching, The term “regularĮxpressions” is frequently shortened to as “regex” or “regexp” inĬonversation. Subset or modified version of the original. Which are then executed with a string as input to produce a matching The patterns are interpreted as a set of instructions, Regular expressions are text matching patterns described with aįormal syntax. Searching within and changing text using formal patterns. Refer to the PyMOTW-3 section of the site. If you are looking for examples that work under Python 3, please Of the features described here may not be available in earlier
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Generated with Python 2.7.8, unless otherwise noted. The output from all the example programs from PyMOTW has been Table of Contents Previous: StringIO and cStringIO – Work with text buffers using file-like API Next: struct – Working with Binary Data This Page