Specifying rules with strings

[MementoRC]

While using RuleCollection, a case of recursive import was annoying and it seemed interesting to be able to define the rules as strings and add a rudimentary lookup for class definitions within the same module or import of pascal_to_snake modules in sub-directories of the module defining the RuleCollection

While working on this, it felt interesting (though, of unforeseeable necessity/use case) to infer the calling frame of the Session and do the lookup in the calling module

Is this something that would be interesting?

@pytest.mark.parametrize(
    "source, expected, rules",
    [
        ("1+1", "1 - 1", "PlusToMinusRule"),
        ("1+1", "1+1", "Plus_MinusRule"),
    ],
)

First case : Find the class definition and applies the PlusToMinusRule
Second case: Typo in the string, ignore the non-existing rule

With RuleCollection:

class CollectPlusToMinusMultToMinusRuleWithString(RuleCollection):
    rules: ClassVar = ["PlusToMinusRule", MultToMinusRule, ]


class CollectPlus_MinusMultToMinusRuleWithString(RuleCollection):
    rules: ClassVar = ["Plus_MinusRule", MultToMinusRule, ]


@pytest.mark.parametrize(
    "source, expected, rules",
    [
        ("1+1*2", "1 - 1 - 2", CollectPlusToMinusMultToMinusRuleWithString),
        ("1+1*2", "1+1 - 2", CollectPlus_MinusMultToMinusRuleWithString),
    ]
)