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Picture Me Coding
Teknologi

The Two Problems With Regular Expressions

56 min•1 oktober 2025

This week we're talking about regular expressions, aka, regex.  These are a favorite tool of programmers, but they also have a dark side.  Do regex cause more problems than they solve?  Can they be evil?  We also discuss the origins of regular expressions, formal language theory, and finite automata.

Now You've Got Two Problems

XKCD: Regular Expressions

Representation of Events in Nerve Nets and Finite Automata

OWASP: ReDOS


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