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https://issues.apache.org/jira/browse/LUCENE-1166?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12566188#action_12566188
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Steven Rowe commented on LUCENE-1166:
-------------------------------------
Hi Thomas,
Looking at [http://offo.sourceforge.net/hyphenation/licenses.html], which seems
to be the same information as in the off-hyphenation.zip file you attached to
this issue, the license issue may be a problem - the hyphenation data is
covered by different licenses on a per-language basis. For example, there are
two German data files, and both are licensed under a LaTeX license, as is the
Danish file, and these two languages are the most likely targets for your
TokenFilter. IANAL, but unless Apache licenses can be secured for this data, I
don't think the files can be incorporated directly into an Apache project.
Also, I don't see Swedish among the hyphenation data licenses - is it covered
in some other way?
> A tokenfilter to decompose compound words
> -----------------------------------------
>
> Key: LUCENE-1166
> URL: https://issues.apache.org/jira/browse/LUCENE-1166
> Project: Lucene - Java
> Issue Type: New Feature
> Components: Analysis
> Reporter: Thomas Peuss
> Attachments: CompoundTokenFilter.patch, de.xml, hyphenation.dtd
>
>
> A tokenfilter to decompose compound words you find in many germanic languages
> (like German, Swedish, ...) into single tokens.
> An example: Donaudampfschiff would be decomposed to Donau, dampf, schiff so
> that you can find the word even when you only enter "Schiff".
> I use the hyphenation code from the Apache XML project FOP
> (http://xmlgraphics.apache.org/fop/) to do the first step of decomposition.
> Currently I use the FOP jars directly. I only use a handful of classes from
> the FOP project.
> My question now:
> Would it be OK to copy this classes over to the Lucene project (renaming the
> packages of course) or should I stick with the dependency to the FOP jars?
> The FOP code uses the ASF V2 license as well.
> What do you think?
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