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https://issues.apache.org/jira/browse/LUCENE-10008?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17424308#comment-17424308
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Vigya Sharma commented on LUCENE-10008:
---------------------------------------
Thanks [~mikemccand] for reviewing this bug fix PR. The [lucene-solr
PR|https://github.com/apache/lucene-solr/pull/2573] above addresses your
comments re: backporting this fix to lucene_8x.
> CommonGramsFilterFactory doesn't respect ignoreCase=true when default
> stopwords are used
> ----------------------------------------------------------------------------------------
>
> Key: LUCENE-10008
> URL: https://issues.apache.org/jira/browse/LUCENE-10008
> Project: Lucene - Core
> Issue Type: Bug
> Reporter: Chris M. Hostetter
> Priority: Major
> Time Spent: 10m
> Remaining Estimate: 0h
>
> CommonGramsFilterFactory's use of the "words" and "ignoreCase" config options
> is inconsistent with how StopFilterFactory uses them - leading to
> "ignoreCase=true" not being respected unless "words" is specified...
> StopFilterFactory...
> {code:java}
> public void inform(ResourceLoader loader) throws IOException {
> if (stopWordFiles != null) {
> ...
> } else {
> ...
> stopWords = new CharArraySet(EnglishAnalyzer.ENGLISH_STOP_WORDS_SET,
> ignoreCase);
> }
> }
> {code}
> CommonGramsFilterFactory...
> {code:java}
> @Override
> public void inform(ResourceLoader loader) throws IOException {
> if (commonWordFiles != null) {
> ...
> } else {
> commonWords = EnglishAnalyzer.ENGLISH_STOP_WORDS_SET;
> }
> }
> {code}
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