Re: color by default

On 2020-03-26 07:36, Michael Paquier wrote:
> I am not sure that deleting all the mentions would be a good idea, as
> we'd lose track of which tool supports coloring or not, and that could
> confuse users. What about switching the existing paragraph to a
> simple sentence with a link to the new appendix you are adding? Say:
> "pg_foo supports <place_your_link_here>colorized output</>".

I didn't do this because it would create additional complications in the
man pages. But there is now an index entry, so it's possible to find
more information.

>> + <para>
>> + The actual colors to be used are configured using the environment variable
>> + <envar>PG_COLORS</envar><indexterm><primary>PG_COLORS</primary></indexterm>
>> + (note plural). The value is a colon-separated list of
>> + <literal><replaceable>key</replaceable>=<replaceable>value</replaceable></literal>
>> + pairs. The keys specify what the color is to be used for. The values are
>> + SGR (Select Graphic Rendition) specifications, which are interpreted by the
>> + terminal.
>> + </para>
>
> A reference to SGR to understand better what's the list of values
> supported would be nice?

I'm not sure how to do that. The full list of possible values is huge,
and exactly what is supported depends on the terminal.

>> + <para>
>> + The default value is <literal>error=01;31:warning=01;35:locus=01</literal>.
>> + </para>
>
> Could it be possible to have more details about what those three
> fields map to?

I have added information about that and explained the example values. I
think if you search for "Select Graphic Rendition" and look for the
example values, you can make sense of this.

Committed with those changes. This closes the commit fest item.

--
Peter Eisentraut http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services