[jira] Commented: (SOLR-1706) wrong tokens output from WordDelimiterFilter when english possessives are in the text

["Robert Muir (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SOLR-1706?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12797366#action_12797366 ] 

Robert Muir commented on SOLR-1706:
-----------------------------------

by the way, i do not have a patch here. i am putting the finishing touches on converting this tokenstream to the new tokenstream API so one alternative is to fix it under SOLR-1657.

the problem is i am autogenerating many test cases for all 512 combos of the 9 boolean options across various strings and seeing things like this.

so, at the least i would like agreement that its buggy behavior.. if someone knows how to fix the existing code that would be even better, it would make testing easier on me.


> wrong tokens output from WordDelimiterFilter when english possessives are in the text
> -------------------------------------------------------------------------------------
>
>                 Key: SOLR-1706
>                 URL: https://issues.apache.org/jira/browse/SOLR-1706
>             Project: Solr
>          Issue Type: Bug
>          Components: Schema and Analysis
>    Affects Versions: 1.4
>            Reporter: Robert Muir
>
> the WordDelimiterFilter english possessive stemming "'s"  removal (on by default) unfortunately causes strange behavior:
> below you can see that when I have requested to only output numeric concatenations (not words), these english possessive stems are still sometimes output, ignoring the options i have provided, and even then, in a very inconsistent way.
> {code}
>   assertWdf("Super-Duper-XL500-42-AutoCoder's", 0,0,0,1,0,0,0,0,1, null,
>     new String[] { "42", "AutoCoder" },
>     new int[] { 18, 21 },
>     new int[] { 20, 30 },
>     new int[] { 1, 1 });
>   assertWdf("Super-Duper-XL500-42-AutoCoder's-56", 0,0,0,1,0,0,0,0,1, null,
>     new String[] { "42", "AutoCoder", "56" },
>     new int[] { 18, 21, 33 },
>     new int[] { 20, 30, 35 },
>     new int[] { 1, 1, 1 });
>   assertWdf("Super-Duper-XL500-AB-AutoCoder's", 0,0,0,1,0,0,0,0,1, null,
>     new String[] {  },
>     new int[] {  },
>     new int[] {  },
>     new int[] {  });
>   assertWdf("Super-Duper-XL500-42-AutoCoder's-BC", 0,0,0,1,0,0,0,0,1, null,
>     new String[] { "42" },
>     new int[] { 18 },
>     new int[] { 20 },
>     new int[] { 1 });
> {code}
> where assertWdf is 
> {code}
>   void assertWdf(String text, int generateWordParts, int generateNumberParts,
>       int catenateWords, int catenateNumbers, int catenateAll,
>       int splitOnCaseChange, int preserveOriginal, int splitOnNumerics,
>       int stemEnglishPossessive, CharArraySet protWords, String expected[],
>       int startOffsets[], int endOffsets[], String types[], int posIncs[])
>       throws IOException {
>     TokenStream ts = new WhitespaceTokenizer(new StringReader(text));
>     WordDelimiterFilter wdf = new WordDelimiterFilter(ts, generateWordParts,
>         generateNumberParts, catenateWords, catenateNumbers, catenateAll,
>         splitOnCaseChange, preserveOriginal, splitOnNumerics,
>         stemEnglishPossessive, protWords);
>     assertTokenStreamContents(wdf, expected, startOffsets, endOffsets, types,
>         posIncs);
>   }
> {code}

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