Completion Suggester Highlighting

[FabianKoestring]

Highlighting

Many search-as-you-type implementations highlight the portion of the term which has already been entered. We plan to add this to the response as we well.
You complete me (August 22, 2013)

Are there any plans when these feature will be implemented?

[s1monw]

@mikemccand @areek can you comment :)

[vgross]

+1

[telendt]

+1

[mikemccand]

I agree this is an important feature but it is unfortunately surprisingly challenging for FST-based suggesters.

We explored it a bit in https://issues.apache.org/jira/browse/LUCENE-4518 but the initial results were poor. The challenge is in how the FST "eagerly" matches outputs to inputs, at least in that initial patch.

Other suggesters e.g. the infix suggester (AnalyzingInfixSuggester) highlight very well since it's just a Lucene index under-the-hood.

[abrahamduran]

+1

[clintongormley]

Looks unlikely that we'll be able to implement this. If it is added to Lucene (see https://issues.apache.org/jira/browse/LUCENE-4518) then we'll get access to it. No need to keep this issue open.