Nice way to print formatted function tables, or formatted lists
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For example, if we want to print a truth table for a boolean function, right now the only options are:
- Just use a list comprehension like
[(p,q,f(p,q)) | p in [false, true], q in [false, true]]but this is not formatted nicely and hard to interpret. - Use
examples/truthtable.discowhich returns a nicely formatted truth table as a string, intended to be used with:print, but it's kind of magical and doesn't generalize well.
A simple idea would be just the ability to print lists in table format. Then at least the list comprehension would be formatted more nicely.
More generally we could have a special command for taking a function and printing a formatted table of its input and output values, either an exhaustive table in the case of finite inputs, or truncated in the case of infinite.
So perhaps there could be a special command :table that works in a type-directed way. When given a list expression, it prints a formatted table with one row per list element (and possibly with multiple columns depending on the type of the elements, e.g. lists or tuples). When given a function expression, it prints a table of inputs and outputs.