1Test data was taken from the Go distribution, which was in turn taken from the 2testregex test suite: 3 4 http://www2.research.att.com/~astopen/testregex/testregex.html 5 6Unfortunately, the above link is now dead, but the test data lives on. 7 8The LICENSE in this directory corresponds to the LICENSE that the data was 9originally released under. 10 11The tests themselves were modified for RE2/Go. A couple were modified further 12by me (Andrew Gallant) (only in repetition.dat) so that RE2/Go would pass them. 13(Yes, it seems like RE2/Go includes failing test cases.) This may or may not 14have been a bad idea, but I think being consistent with an established Regex 15library is worth something. 16 17After some number of years, these tests were transformed into a JSON format 18using the fowler-to-json script in this directory, e.g., 19 20 ./fowler-to-json basic.dat > basic.json 21 22which brings them into a sensible structured format in which other tests can 23be written. 24