Make CharFilter reusable
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Key: LUCENE-2788
URL: https://issues.apache.org/jira/browse/LUCENE-2788
Project: Lucene - Java
Issue Type: Improvement
Components: Analysis
Reporter: Robert Muir
Priority: Minor
The CharFilter API lets you wrap a Reader, altering the contents before the
Tokenizer sees them.
It also allows you to correct the offsets so this is transparent to
highlighting.
One problem is that the API isn't reusable, if you have a lot of short
documents its going to be efficient.
Additionally there is some unnecessary wrapping in Tokenizer (see the
CharReader.get in the ctor, but *not* in reset(Reader)!!!)
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