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Text file src/regexp/testdata/README

Documentation: regexp/testdata

     1AT&T POSIX Test Files
     2See textregex.c for copyright + license.
     3
     4testregex.c	http://www2.research.att.com/~gsf/testregex/testregex.c
     5basic.dat	http://www2.research.att.com/~gsf/testregex/basic.dat
     6nullsubexpr.dat	http://www2.research.att.com/~gsf/testregex/nullsubexpr.dat
     7repetition.dat	http://www2.research.att.com/~gsf/testregex/repetition.dat
     8
     9The 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
    16Such changes are marked with 'RE2/Go'.
    17
    18
    19RE2 Test Files
    20
    21re2-exhaustive.txt.bz2 and re2-search.txt are built by running
    22'make log' in the RE2 distribution https://github.com/google/re2/
    23
    24The exhaustive file is compressed because it is huge.

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