| AT&T POSIX Test Files | 
 | See textregex.c for copyright + license. | 
 |  | 
 | testregex.c	http://www2.research.att.com/~gsf/testregex/testregex.c | 
 | basic.dat	http://www2.research.att.com/~gsf/testregex/basic.dat | 
 | nullsubexpr.dat	http://www2.research.att.com/~gsf/testregex/nullsubexpr.dat | 
 | repetition.dat	http://www2.research.att.com/~gsf/testregex/repetition.dat | 
 |  | 
 | The test data has been edited to reflect RE2/Go differences: | 
 |   * In a star of a possibly empty match like (a*)* matching x, | 
 |     the no match case runs the starred subexpression zero times, | 
 |     not once.  This is consistent with (a*)* matching a, which | 
 |     runs the starred subexpression one time, not twice. | 
 |   * The submatch choice is first match, not the POSIX rule. | 
 |  | 
 | Such changes are marked with 'RE2/Go'. | 
 |  | 
 |  | 
 | RE2 Test Files | 
 |  | 
 | re2-exhaustive.txt.bz2 and re2-search.txt are built by running | 
 | 'make log' in the RE2 distribution https://github.com/google/re2/ | 
 |  | 
 | The exhaustive file is compressed because it is huge. |