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From Koji Sekiguchi <>
Subject Re: PatternReplaceCharFilter, LUCENE-3820
Date Mon, 27 Feb 2012 00:20:43 GMT
(12/02/23 18:59), Dawid Weiss wrote:
> Heads up.
> I've suggested a patch to PatternReplaceCharFilter that heavily
> simplifies the code, passes tests that previously didn't pass and,
> well, perhaps contains the processing logic that is a bit easier to
> understand (for me :).
> This patch does drop support for block delimiters and block processing
> though (!) so the entire input from CharStreams underneath is buffered
> and preprocessed in one go. Is anybody using these block delimiters?
> It should be possible to add them back in, but if it's a dead feature
> then we may as well just drop it entirely.

Hi Dawid,

As I thought that buffering entire String tends to take place OOM when doing
pattern matching, I introduced an idea of the block. If it shouldn't,
I think we can just drop it.

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