Is there a theme to color TSV (or CSV) output by column?

[leonqli]

Thanks!

[nojhan]

The question is ambiguous in many ways, but my wild guess is that it is easily feasible without needing a theme, for instance:
cat file.csv | colout --colormap "([^,]*),*" blue,yellow" gives something like:

Is it what you want to achieve?

[leonqli]

Thanks @nojhan ! It is very similar already!

The following screenshot is colored in vim with the plugin rainbow_csv. I wonder if it could be done with colout in output and/or if it is worth the effort to create an theme.

[nojhan]

I did not succeed to find a vanilla way to do that, the best I came up with would be:

cat file.csv | colout -g $(for i in $(seq 1 7); do echo -n "([^,]*),*"; done) rainbow

(Which requires to know in advance the number of columns).

Now I'm thinking of what would be the best option to integrate that as a feature.
So far I'm thinking of:

• Add an option to reset the colormap counting after each line.
• Put the random seed within this reset.

This would allow to use both rainbows and random colormaps in such a way.