Rex: Symbolic Regular Expression Explorer
- Margus Veanes ,
- Peli de Halleux ,
- Nikolai Tillmann
Third International Conference on Software Testing, Verification and Validation (ICST) |
Published by IEEE
Constraints in form regular expressions over strings are ubiquitous. They occur often in programming languages like Perl and C#, in SQL in form of LIKE expressions, and in web applications. Providing support for regular expression constraints in program analysis and testing has several useful applications. We introduce a method and a tool called Rex, for symbolically expressing and analyzing regular expression constraints. Rex is implemented using the SMT solver Z3, and we provide experimental evaluation of Rex.
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