Regular Expressions

  • Mark Pilgrim


Regular expressions are a powerful and standardized way of searching, replacing, and parsing text with complex patterns of characters. If you’ve used regular expressions in other languages (like Perl), the syntax will be very familiar, so you might want to just read the summary of the re module (http: // to get an overview of the available functions and their arguments.


Regular Expression Phone Number Roman Numeral Final Answer Area Code 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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© Mark Pilgrim 2004

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  • Mark Pilgrim

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