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https://issues.apache.org/jira/browse/LUCENE-1438?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12657143#action_12657143
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Greg Shackles commented on LUCENE-1438:
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I ran into this same problem. Some examples are:
www.1-800-flowers.com gets split into www.1-800 and flowers.com
1-800-flowers.com gets split into 1-800-flowers and com
Is there any chance of this being looked at sometime soon?
> StandardTokenizer splits host names with hyphens into multiple tokens
> ---------------------------------------------------------------------
>
> Key: LUCENE-1438
> URL: https://issues.apache.org/jira/browse/LUCENE-1438
> Project: Lucene - Java
> Issue Type: Bug
> Components: Analysis
> Affects Versions: 2.4
> Reporter: Robert Newson
>
> StandardTokenizer does not recognize host names with hyphens as a single HOST
> token. Specifically "www.m-w.com" is tokenized as "www.m" and "w.com", both
> of "<HOST>" type.
> StandardTokenizer should instead output a single HOST token for
> "www.m-w.com", since hyphens are a legitimate character in DNS host names.
> We've a local fix to the grammar file which also required us to significantly
> simplify the NUM type to get the behavior we needed for host names.
> here's a junit test for the desired behavior;
> public void testWithHyphens() throws Exception {
> final String host = "www.m-w.com";
> final StandardTokenizer tokenizer = new StandardTokenizer(
> new StringReader(host));
> final Token token = new Token();
> tokenizer.next(token);
> assertEquals("<HOST>", token.type());
> assertEquals("www.m-w.com", token.term());
> }
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