Hi Corinna, This seems like a design problem in the underlying Java library:
kepler/actors/src/org/resurgence/actor/StringSplitter.java uses java.util.String.split() http://java.sun.com/j2se/1.4.2/docs/api/java/lang/String.html#split%28java.lang.String%29 says > This method works as if by invoking the two-argument split method with the > given expression > and a limit argument of zero. Trailing empty strings are therefore not > included in the resulting array. > > The string "boo:and:foo", for example, yields the following results with > these expressions: > > Regex Result > : { "boo", "and", "foo" } > o { "b", "", ":and:f" } I added a comment to StringSplitter about this limitation. Probably what we need in this case is a StringTokenizer actor. _Christopher On 6/10/10 12:20 PM, Corinna Gries wrote: > Hi Madhu, > > when I run the attached workflow the output is this: > > {"6/19/2009", "CEW", "", "6/10/2009", "6", "1", "1000", "52.5", "31", > "1", "1", "1.017410714", "0.625589286", "1.3125"} > > and it is missing the empty string in position 14. I think you may have > had a space after the last comma, which made it work just fine. > > Corinna > > Madhusudan Gujral wrote: >> Hi Corinna, >> >> I passed the splitter results to dsplay actor. What I observe if >> following >> {"6/19/2009", "CEW", "", "6/10/2009", "6", "1", "1000", "52.5", "31", >> "1", "1", "1.017410714", "0.625589286", "1.3125", "", " "} >> >> It has elements 14 'No Space' and 15 'Space' displayed correctly. When >> I used Array Element actor to display the values for element 14, 15, >> it does not complain, but there is nothing to show. >> My guess is that the problem is related to post processing (processing >> the empty tokens). >> >> Thanks >> --Madhu >> >> ________________________________________ >> From: kepler-users-bounces at kepler-project.org >> [kepler-users-bounces at kepler-project.org] On Behalf Of Corinna Gries >> [cgries at wisc.edu] >> Sent: Thursday, June 10, 2010 11:31 AM >> To: Kepler User >> Subject: [kepler-users] string splitter >> >> Hi again, >> >> when I am running this line of data: >> 6/19/2009,CEW,,6/10/2009,6,1,1000,52.5,31,1,1,1.017410714,0.625589286,1.3125,, >> >> >> through the string splitter, splitting it on ',' it omits the last empty >> string, i.e. does not pass an empty string. Trying to read the array >> element in position 14 throws an error rather than returning an empty >> string, which is what I had expected. >> >> I can work around it by just adding something to end of the line but is >> that an otherwise meaningful behavior? >> >> Corinna >> _______________________________________________ >> Kepler-users mailing list >> Kepler-users at kepler-project.org >> http://mercury.nceas.ucsb.edu/kepler/mailman/listinfo/kepler-users > > > _______________________________________________ > Kepler-users mailing list > Kepler-users at kepler-project.org > http://mercury.nceas.ucsb.edu/kepler/mailman/listinfo/kepler-users -- Christopher Brooks, PMP University of California CHESS Executive Director US Mail: 337 Cory Hall Programmer/Analyst CHESS/Ptolemy/Trust Berkeley, CA 94720-1774 ph: 510.643.9841 fax:510.642.2718 (Office: 545Q Cory) home: (F-Tu) 707.665.0131 cell: 707.332.0670
