#8 startWith & named backreferences

[Aureliano Calvo]

I'm using startWith combined with Named backreferences.
And if I cut the reference,
the startWith method returns false even when it should
be true.
Here is the code:

Pattern p = new Pattern( "({ones}1*)a*{\ones}" );

String testCase = "11a1";

System.err.println( testCase + " startsWith() for the
pattern:" + p.startsWith(testCase) );

but, if I change the testCase to "11a11" or "11a" it
works fine.

[Ulf Dittmer]

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user_id=908396

I think you misunderstand what Pattern.startsWith does.
"11a1" is not a prefix of p, but both "11a" and "11a11" are.
The former matches "({ones}1*)a*", and the latter matches
the whole of p. That's because the "\ones" backreference
matches "11", not "1". (Also see my comment to bug 667201
and the other one you files.)