Oh my God!!! That is the explanation '-' is part of the metalanguage.
Thanks
On Tuesday, July 17, 2012 09:16:46 AM David Winslow wrote:
> Ah right, I didn't think about it but "-" is a special character inside of
> character classes in Java regular expressions. So "|-|" is parsed as a
> range from | to | (inclusive.) I guess when the - is the first character
> in the class the parser assumes it should be treated as an escape, but if
> you want to be explicit you can also escape it with a \. Backslashes also
> must be escaped in Java string literals so the end result would be
> .split("[+\\-Z]")
>
> --
> David Winslow
> OpenGeo - http://opengeo.org/
>
> On Tue, Jul 17, 2012 at 3:28 AM, Mauricio Pazos
<[email protected]>wrote:
> > On Monday, July 16, 2012 09:47:59 AM David Winslow wrote:
> > > Actually, the square brackets denote a character class, so logical OR is
> > > the default behavior and | has no special meaning.
> >
> > String.split("[-|+|Z]")
> >
> > > will split on any of the characters '-' '+' '|' and 'Z' (note that the
> >
> > pipe
> >
> > > character is included in this list! that's probably not intended.) See
> > > http://docs.oracle.com/javase/6/docs/api/java/util/regex/Pattern.html#cc
> >
> > Thanks for clarification. The, bug here is related with the sequence in
> > the
> > character list. It looks like is not equal
> > str = "aaaa-bbbb"
> > str.split("[-|+|Z]") Not equal to str.split("[+|-|Z]")
> >
> > but
> >
> > str = "aaaa-bbbb"
> > str.split("[-+Z]") equal to str.split("[+-Z]")
> >
> > cheers
> > --
> > Mauricio Pazos
--
Mauricio Pazos
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