[jira] [Commented] (LOG4J2-2339) format multiple conversion characters with one conversion specifier

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

    [ https://issues.apache.org/jira/browse/LOG4J2-2339?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16473528#comment-16473528 ] 

Matt Sicker commented on LOG4J2-2339:
-------------------------------------

I like the idea in theory, though I'm unsure about syntax. Perhaps a more generic grouping pattern converter?

> format multiple conversion characters with one conversion specifier
> -------------------------------------------------------------------
>
>                 Key: LOG4J2-2339
>                 URL: https://issues.apache.org/jira/browse/LOG4J2-2339
>             Project: Log4j 2
>          Issue Type: New Feature
>          Components: Core, Pattern Converters
>    Affects Versions: 2.8.2
>            Reporter: Jakub
>            Priority: Major
>
> I am writing on suggestion from [~remkop@yahoo.com] in [https://stackoverflow.com/questions/50311762/log4j-set-class-and-method-summary-length-in-pattern] 
>  
> I would like to format multiple conversion characters with one conversion specifier.
> As Remko explained, it is currently not possible
> _No, each modifier applies to one conversion. But Log4j could add a new converter that means what you want. You can propose such a new converter on the mailing list or issue tracker_
> Would it be a useful feature to add to log4j2 ? Would it be hard to implement ?
>  
> EG
> I would like to set summary length of class.method.line with
> %-60.60CML
> It's not possible now. Below what doc states
> [https://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/PatternLayout.html]
> {quote}Each conversion specifier starts with a percent sign (%) and is followed by optional format modifiers and a conversion charact*er*. The conversion charact*er* specifies the type of data
> The pattern parser knows when it has reached the end of a conversion specifier when it reads a conversion charact*er*.
> {quote}
> It writes only about single conversion character, I would like to modify multiple conversion characters with one conversion specifier.
>  



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