Management of NULL value

[tmtben]

Hello,

Thanks again for this great tool. I've got one suggestion to make it even better.

By my side, when I create a csv file, I try to tell apart NULL value and empty string.
Here is an example with comma separator:
• ,, means NULL
• ,"", means empty string

In fact, all my strings are encapsulated by double quotes:
,"My string",

For me, numerical values, booleans and timestamps are not string:
,1234567890,

For my use case, the solution could be:
If input field of csvdiff is encapsulated by double quotes, output field of csvdiff must be encapsulated too (even if output value is empty).

Best regards,
Ben

[aswinkarthik]

In Golang, nulls cannot be stored as a string. It is read as an empty string by the csvreader. Only a pointer can store nils. I will think about a solution for this.