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(librep.info)Regular Expressions

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Regular Expressions
===================

   Regular expressions (or "regexps") are a powerful method of matching
patterns in strings. `librep' uses the `regexp(3)' implementation by
Henry Spencer, with some modifications that I have made. It comes with
this banner:

     Copyright (c) 1986 by University of Toronto.
     Written by Henry Spencer.  Not derived from licensed software.

     Permission is granted to anyone to use this software for any
     purpose on any computer system, and to redistribute it freely,
     subject to the following restrictions:

       1. The author is not responsible for the consequences of use of
          this software, no matter how awful, even if they arise from
          defects in it.

       2. The origin of this software must not be misrepresented, either
          by explicit claim or by omission.

       3. Altered versions must be plainly marked as such, and must not
          be misrepresented as being the original software.

Regexp Syntax

How to write regular expressions

Regexp Functions

How to use them