[logback-user] ANSI coloring?

ceki ceki at qos.ch
Thu Jun 7 16:49:34 CEST 2012

Hi Adam,

Color control is done within the pattern by color converters which are 
just composite converters, i.e. converters containing other conveters. 
Here is a sample "pattern" property:

   <pattern>%highlight(%-5level) %cyan(%logger) - %msg%n</pattern>

Note the %highlight and %cyan composite conversion specifiers which 
contain other conversion specifiers (you can have as many as you want).

For instance, the following is legal:

   <pattern>%highlight(%-5level %logger - %msg)%n</pattern>

The %highlight specifier is implemented by 
HighlightingCompositeConverter [1] all in about 10 lines of code.

[1] http://goo.gl/YJA8T

On 07.06.2012 15:53, Adam Gordon wrote:
> I'm on my mobile at the moment so I can't look at highlight.xml.  I
> would assume that this file controls the color to log level mapping?
> I wrote a custom encoder a while ago that essentially does this,
> however, am happy to upgrade to the latest logback and see if it will
> work for us.  if so, I'm happy to use it and have one less dependency.
> will check later this morning.
> --adam
> On Jun 7, 2012, at 2:49, ceki<ceki at qos.ch>  wrote:
>> Hello all,
>> Has anyone had a chance to try ANSI coloring [1] as introduced in
>> logback 1.0.5? It's a seemingly cool feature but I am curious whether
>> it's actually useful.
>> [1] http://logback.qos.ch/manual/layouts.html#coloring
>> --
>> Ceki
>> http://twitter.com/#!/ceki

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