Feature request: Include padding for sign for columns with positive and negative numbers

[Heeten]

I love csvlens, this has been a super helpful tool for my work. I am wondering what you think about this feature request. If I have the following table:

date         a           b 
2019-01-02   -0.002426   -0.002555
2019-01-03   -0.008189   -0.008318
2019-01-04   -0.001163   -0.001294
2019-01-07   0.005784    0.005654
2019-01-08   0.004757    0.004627
2019-01-09   0.000067    -0.000062
2019-01-10   0.000059    -0.000070
2019-01-11   -0.001242   -0.001371
2019-01-14   0.002140    0.002010

I would like if the columns without - had an extra space so it rendered aligned.

[YS-L]

Thanks for the suggestion!

One principle I would like csvlens to follow in general is to not interpret the content of the csv beyond parsing out the fields, and to render the content faithfully. Adding extra spaces requires recognizing a column as numeric with a certain formatting and also modifies the original content, which kind of goes against that principle.

So for now I think it's unlikely that I will prioritize this, but I'm also curious what other users think about this.

[pataquets]

Although the OP FR is very desirable, I agree with @YS-L's stance on this and I also think such principle should prevail here.
The only "no exceptions/specific code" alternate approach I can see this being achievable is under some sort of printf-style generic column formatting feature, which would cover also this case for numbers.
Needless to say, this feature should fail gracefully if the column type could not be determined (ideally, the formatter would be responsible of guessing the type), so no nasty side effects if the user chooses an incorrect format and no extra type-guessing code would overflow outside the formatting feature.
Just my 2c.