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Create a printer callback function

Source: R/printr.R
printer_callback.Rd

A printer callback function is a function can performs the actual printing. It has a number of subcommands, that are called by the printer package, in a form


    printer_callback("subcommand", argument1, argument2, ...)

See the examples below.

Usage

printer_callback(fun)

Arguments

fun

The function to use as a printer callback function.

Details

The subcommands:

length

The length of the data to print, the number of items, in natural units. E.g. for a list of objects, it is the number of objects.

min_width

TODO

width

Width of one item, if no items will be printed. TODO

print

Argument: no. Do the actual printing, print no items.

done

TODO

See also

Other printer callbacks: is_printer_callback()