Editing Agrep (section)

==Alternative implementations==
A more recent agrep is the command-line tool provided with the [[TRE (computing)|TRE]] regular expression library. TRE agrep is more powerful than Wu-Manber agrep since it allows weights and total costs to be assigned separately to individual groups in the pattern. It can also handle Unicode.<ref>{{cite web | title=TRE - TRE regexp matching package - Features | url=http://laurikari.net/tre/about }}</ref> Unlike Wu-Manber agrep, TRE agrep is licensed under a [[BSD licenses#BSD-style licenses|2-clause BSD-like license]].

FREJ (Fuzzy Regular Expressions for Java) open-source library provides command-line interface which could be used in the way similar to agrep. Unlike agrep or TRE it could be used for constructing complex substitutions for matched text.<ref>{{cite web | title=FREJ - Fuzzy Regular Expressions for Java - Guide and Examples | url=http://frej.sf.net/rules.html }}</ref> However its syntax and matching abilities differs significantly from ones of ordinary [[regular expression]]s.