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https://issues.apache.org/jira/browse/MIME4J-304?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Benoit Tellier closed MIME4J-304.
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Resolution: Fixed
> DecoderUtil::decodeEncodedWords should not rely on REGEXP
> ---------------------------------------------------------
>
> Key: MIME4J-304
> URL: https://issues.apache.org/jira/browse/MIME4J-304
> Project: James Mime4j
> Issue Type: Improvement
> Components: core
> Affects Versions: 0.8.5
> Reporter: Benoit Tellier
> Priority: Major
> Labels: performance
> Fix For: 0.8.6
>
> Attachments: decode_handwritten_parser.png, decode_with_regex.png
>
> Time Spent: 40m
> Remaining Estimate: 0h
>
> Rationals: regular expressions are costly to execute, we are likely better
> off writing a parser for this.
> See attached:
> - The flameGraph before (regex) when using JMAP
> - The flameGraph after (hand written parser) when using JMAP
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