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From "Uwe Schindler (JIRA)" <>
Subject [jira] [Updated] (LUCENE-4220) Replace benchmarks crazy HTML parser by a nekohtml 10-liner
Date Sun, 15 Jul 2012 17:28:33 GMT


Uwe Schindler updated LUCENE-4220:

    Attachment: LUCENE-4220.patch

The original patch had a bug (which was caused by my misunderstanding and missing test data).

Other changes:
- the new Parser now correctly implements TrecParser interface and also cleans up the whole
HTMLParser interface.
- removed useless InterruptedException from method signatures (was only there because of the
crazy old parser)
- Fixed NPE in parsing date from <meta.../> elements

It would be good if someone (e.g. Doron Cohen, who wrote the original parser or anybody else
who has a license) could temporarily provide the Gov2 TREC collection to me, so that I can
check that all is working as expected. The test data is horrible small.

Nevertheless, I will commit the current state soon to trunk and 4.x.
> Replace benchmarks crazy HTML parser by a nekohtml 10-liner
> -----------------------------------------------------------
>                 Key: LUCENE-4220
>                 URL:
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: modules/benchmark
>    Affects Versions: 4.0-ALPHA
>            Reporter: Uwe Schindler
>             Fix For: 4.0, 5.0
>         Attachments: LUCENE-4220.patch, LUCENE-4220.patch, LUCENE-4220.patch
> Benchmark contains a javacc-based HTML parser which of course violates all specs, is
huge and error prone.
> I can replace it by a NEKOHTML based one (approx 10 - 20 lines of code). NEKOHTML is
an extension for XERCES (that we already use to read wikipedia), that produces SAX-events
or DOM tree out of a HTML file usingg standard XML APIS. We could also use TIKA, but I refuse
to download the Internet to get TIKA running for just parsing a HTML file.

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