make BaseCharFilter more efficient in performance
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Key: LUCENE-2098
URL: https://issues.apache.org/jira/browse/LUCENE-2098
Project: Lucene - Java
Issue Type: Improvement
Components: Analysis
Affects Versions: 2.9
Reporter: Koji Sekiguchi
Priority: Minor
Performance degradation in Solr 1.4 was reported. See:
http://www.lucidimagination.com/search/document/43c4bdaf5c9ec98d/html_stripping_slower_in_solr_1_4
The inefficiency has been pointed out in BaseCharFilter javadoc by Mike:
{panel}
NOTE: This class is not particularly efficient. For example, a new class
instance is created for every call to addOffCorrectMap(int, int), which is then
appended to a private list.
{panel}
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