Text file src/regexp/testdata/README

     1  AT&T POSIX Test Files
     2  See textregex.c for copyright + license.
     3  
     4  testregex.c	http://www2.research.att.com/~gsf/testregex/testregex.c
     5  basic.dat	http://www2.research.att.com/~gsf/testregex/basic.dat
     6  nullsubexpr.dat	http://www2.research.att.com/~gsf/testregex/nullsubexpr.dat
     7  repetition.dat	http://www2.research.att.com/~gsf/testregex/repetition.dat
     8  
     9  The test data has been edited to reflect RE2/Go differences:
    10    * In a star of a possibly empty match like (a*)* matching x,
    11      the no match case runs the starred subexpression zero times,
    12      not once.  This is consistent with (a*)* matching a, which
    13      runs the starred subexpression one time, not twice.
    14    * The submatch choice is first match, not the POSIX rule.
    15  
    16  Such changes are marked with 'RE2/Go'.
    17  
    18  
    19  RE2 Test Files
    20  
    21  re2-exhaustive.txt.bz2 and re2-search.txt are built by running
    22  'make log' in the RE2 distribution https://github.com/google/re2/
    23  
    24  The exhaustive file is compressed because it is huge.
    25  

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