Say I have a regular expression like:
A[CT]A[CT]
This can match 4 possible strings
ACAC,
ACAT,
ATAC,
ATAT,
For any given regular expression I would like a script that lists all possible strings it could match. Such a script would have utility in "back translating" amino acids to proteins, or DNA sequences with SNPs to possible exact sequences. I do not see an easy way to accomplish this, and have to think the problem has been solved 100's of times. Thanks in advance for help
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