Clojure's clojure.string/trim uses Java's String/trim, but
clojure.string/triml and trimr use Java's Character/isWhitespace to
determine which characters are white space to remove. CLJ-935 has a
suggested patch to make them all use Character/isWhitespace:
http://dev.clojure.org/jira/browse/CLJ-935
Character/isWhitespace doesn't consider Unicode code point 0x00A0 a
whitespace character, either, though. Java's Character/isSpaceChar does,
but neither of those Java methods recognize a set of whitespace characters
that is a superset of the other. Fun, eh?
I'd recommend writing your own trim that gets rid of exactly what you
want. Start by copying from the existing triml or the version of trim in
the patch for CLJ-935 and tailoring the condition for whitespace characters
to your heart's desire.
Andy
On Sun, Aug 11, 2013 at 5:54 PM, Tim Visher <tim.vis...@gmail.com> wrote:
> Sorry, I should have been more clear. In the following the space at
> the end of the string is a no break space and the first execution is
> under clojurescript, the second under clojure.
>
> user> (clojure.string/trim "54 ")
> "54"
> bible-plan.mcheyne> :cljs/quit
> :cljs/quit
> bible-plan.piggieback-rhino> (clojure.string/trim "54 ")
> "54 "
>
> So under clojurescript, a no break space is considered whitespace
> (certainly what I would expect!) but on the jvm it is not.
>
> That's the discrepancy I'm talking about. The unicode character NO
> BREAK SPACE (http://www.fileformat.info/info/unicode/char/a0/index.htm)
> seems like it should be considered whitespace.
>
> Of course I know that JVM land String.trim does not do this but I
> would basically consider that a bug.
>
> Further thoughts?
>
> --
>
> In Christ,
>
> Timmy V.
>
> http://blog.twonegatives.com/
> http://five.sentenc.es/ -- Spend less time on mail
>
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