Hey Simon Are you using the latest released version? ~P
> Date: Sat, 7 Jan 2012 22:58:12 +0100
> From: si...@devhost.se
> To: lucene-net-dev@lucene.apache.org
> Subject: [Lucene.Net] Repro if LUCENENET-54 (ArgumentOutOfRangeException in
> SnowballProgram)
>
> Hi,
>
> I've written a simple reproduction of LUCENENET-54
> (ArgumentOutOfRangeException in SnowballProgram). I'm not sure about the
> correct workflow to reopen this issue (it was closed as invalid in 2007
> due to missing information), so I'm throwing what I got into the
> developer mailing list and hope that someone else knows the correct
> approach. Problem originates in SnowballProgram.slice_to, where the
> second argument to StringBuilder.ToString(start, length) where the last
> parameter is passed an index instead of the length.
>
> Reproduction:
> using System.IO;
> using Lucene.Net.Analysis.Snowball;
> using Lucene.Net.Analysis.Tokenattributes;
> using NUnit.Framework;
>
> namespace ConsoleApplication {
> [TestFixture]
> public class LuceneRepo {
> [Test(Description = "LUCENENET-54")]
> public void Repro() {
> var analyzer = new SnowballAnalyzer("Finnish");
>
> var input = new StringReader("terve");
> var tokenStream = analyzer.TokenStream("fieldName", input);
> var termAttr =
> (TermAttribute)tokenStream.AddAttribute(typeof (TermAttribute));
>
> Assert.That(tokenStream.IncrementToken(), Is.True);
> Assert.That(termAttr.Term(), Is.EqualTo("terv"));
> }
> }
> }
>
> Unexpected exception:
> System.ArgumentOutOfRangeException: Index and length must refer to a
> location within the string.
> Parameter name: length
> at System.Text.StringBuilder.ToString(Int32 startIndex, Int32 length)
> at SF.Snowball.SnowballProgram.slice_to(StringBuilder s) in
> C:\Dev\Third
> Party\Lucene.NET\src\contrib\Snowball\SF\Snowball\SnowballProgram.cs:line 467
> at SF.Snowball.Ext.FinnishStemmer.r_tidy() in C:\Dev\Third
> Party\Lucene.NET\src\contrib\Snowball\SF\Snowball\Ext\FinnishStemmer.cs:line
> 974
> at SF.Snowball.Ext.FinnishStemmer.Stem() in C:\Dev\Third
> Party\Lucene.NET\src\contrib\Snowball\SF\Snowball\Ext\FinnishStemmer.cs:line
> 1137
>
> Expected result:
> The unit test should pass.
>
> // Simon
>
