Cross Reference: /freebsd-13-stable/contrib/netbsd-tests/lib/libc/regex/data/att/

AT&T test data from: http://www2.research.att.com/~gsf/testregex/

Quoting from the page:
    testregex.c 2004-05-31 is the latest source for the AT&T Research
    regression test harness for the X/Open regex pattern match interface.
    See testregex(1) for option and test input details. The source and
    test data posted here are license free.
Name		Date	Size
..		22-Jun-2021	22
basic.dat	H A D	22-Jun-2021	8.4 KiB
categorization.dat	H A D	22-Jun-2021	2.3 KiB
forcedassoc.dat	H A D	22-Jun-2021	1.3 KiB
leftassoc.dat	H A D	22-Jun-2021	615
nullsubexpr.dat	H A D	22-Jun-2021	1.8 KiB
README	H A D	22-Jun-2021	350
repetition.dat	H A D	22-Jun-2021	5.3 KiB
rightassoc.dat	H A D	22-Jun-2021	615