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Pattern Matching Using Regular Expressions

Course notes

This course describes how patterns in text strings can be matched using regular expressions. A number of programming and scripting languages (such as Python, Perl, and Java) and other applications (such as Apache, PHP, Exim, and some text editors) support the use of regular expression patterns. Although there are some differences between the different implementations, there is also a lot in common.

The course has been modified and extended from the one previously given by Philip Hazel, the author of the PCRE ("Perl Compatible Regular Expressions") library, one of the standard and widely used regular expression libraries. The extensions are: Python and Java to the same level as Perl and PCRE; more warnings about problem areas, background usage and programming hints; and a short section on true (computer science) regular expressions and their uses when transferring data between programs.

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