[jira] [Resolved] (LOG4J2-1169) PatternLayout: Possible variable substitution in equals substitution parameter

["Matt Sicker (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LOG4J2-1169?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Matt Sicker resolved LOG4J2-1169.
---------------------------------
       Resolution: Fixed
    Fix Version/s: 2.6

I've applied a modified version of that patch to master. Go ahead and verify and close.

Also, I'm not sure if this needs a documentation update. If so, I could do that.

> PatternLayout: Possible variable substitution in equals substitution parameter
> ------------------------------------------------------------------------------
>
>                 Key: LOG4J2-1169
>                 URL: https://issues.apache.org/jira/browse/LOG4J2-1169
>             Project: Log4j 2
>          Issue Type: Improvement
>          Components: Pattern Converters
>    Affects Versions: 2.4.1
>            Reporter: Gerald Kritzinger
>            Assignee: Matt Sicker
>            Priority: Critical
>             Fix For: 2.6
>
>         Attachments: LOG4J2-1169.patch, LOG4J2_1169-try2.patch
>
>
> Let the substitution parameter of the equals function also substitute variables.
> E.g.: 
> {noformat}
> %equals{%marker}{}{%msg} 
> {noformat}
> should print the message if the marker is empty, currently "%msg" is appended.



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