[jira] [Commented] (LUCENE-8278) UAX29URLEmailTokenizer is not detecting some tokens as URL type

["Steve Rowe (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/LUCENE-8278?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16459032#comment-16459032 ] 

Steve Rowe commented on LUCENE-8278:
------------------------------------

Confirming there is an issue, but I don't think the spellings of "example.com" and "example.net" are the problem though; more likely this is related to an end-of-input issue.  This test added to {{TestUAX29URLEmailTokenizer}} fails for me:
  
{noformat}
  public void testExampleURLs() throws Exception {
    Analyzer analyzer = new Analyzer() {
      @Override protected TokenStreamComponents createComponents(String fieldName) {
        return new TokenStreamComponents(new UAX29URLEmailTokenizer(newAttributeFactory()));
      }};

    // A trailing space allows these to succeed
    BaseTokenStreamTestCase.assertAnalyzesTo(analyzer, "example.com ", new String[]{"example.com"}, new String[]{"<URL>"});
    BaseTokenStreamTestCase.assertAnalyzesTo(analyzer, "example.net ", new String[]{"example.net"}, new String[]{"<URL>"});
    
    // These fail
    BaseTokenStreamTestCase.assertAnalyzesTo(analyzer, "example.com", new String[]{"example.com"}, new String[]{"<URL>"});
    BaseTokenStreamTestCase.assertAnalyzesTo(analyzer, "example.net", new String[]{"example.net"}, new String[]{"<URL>"});
  }
{noformat}

So there is an issue here with no-scheme end-of-input URLs not being recognized as type {{<URL>}}.

> UAX29URLEmailTokenizer is not detecting some tokens as URL type
> ---------------------------------------------------------------
>
>                 Key: LUCENE-8278
>                 URL: https://issues.apache.org/jira/browse/LUCENE-8278
>             Project: Lucene - Core
>          Issue Type: Bug
>            Reporter: Junte Zhang
>            Priority: Minor
>
> We are using the UAX29URLEmailTokenizer so we can use the token types in our plugins.
> However, I noticed that the tokenizer is not detecting certain URLs as <URL> but <ALPHANUM> instead.
> Examples that are not working:
>  * example.com is <ALPHANUM>
>  * example.net is <ALPHANUM>
> But:
>  * https://example.com is <URL>
>  * as is https://example.net
> Examples that work:
>  * example.ch is <URL>
>  * example.co.uk is <URL>
>  * example.nl is <URL>
> I have checked this JIRA, and could not find an issue. I have tested this on Lucene (Solr) 6.4.1 and 7.3.
> Could someone confirm my findings and advise what I could do to (help) resolve this issue?



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)

---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@lucene.apache.org
For additional commands, e-mail: dev-help@lucene.apache.org