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2017 Apr 05
0
Bug report: POSIX regular expression doesn't match for somewhat higher values of upper bound
>>>>> <dietmar.schindler at manroland-web.com> >>>>> on Tue, 4 Apr 2017 08:45:30 +0000 writes: > Dear Sirs, > while >> regexpr('(.{1,2})\\1', 'foo') > [1] 2 > attr(,"match.length") > [1] 2 > attr(,"useBytes") > [1] TRUE > yields the correct match, an
2017 Apr 04
2
Bug report: POSIX regular expression doesn't match for somewhat higher values of upper bound
Dear Sirs, while > regexpr('(.{1,2})\\1', 'foo') [1] 2 attr(,"match.length") [1] 2 attr(,"useBytes") [1] TRUE yields the correct match, an incremented upper bound in > regexpr('(.{1,3})\\1', 'foo') [1] -1 attr(,"match.length") [1] -1 attr(,"useBytes") [1] TRUE incorrectly yields no match. R versions tested: 2.11.1