1AT&T test data from: 2 http://www2.research.att.com/~gsf/testregex/ 3 4The above link does not exist anymore; a copy of it is maintained at: 5 https://github.com/gburd/testregex 6 7Quoting from the page: 8 testregex.c 2004-05-31 is the latest source for the AT&T Research 9 regression test harness for the X/Open regex pattern match interface. 10 See testregex(1) for option and test input details. The source and 11 test data posted here are license free. 12 13