Re: custom type tests

["Lennart Borgman (gmail)" <lennart.borgman@gmail.com>]

Drew Adams wrote:
>> Thinking about it again, the code is in set-variable.
>> Look for :match there.
> 
> Thanks for checking and replying.
> 
> No, I don't see that, however. That code is about checking that a given
> value is of the right type.
> 
> I want to compare two types themselves, to see if they are compatible (one
> is <= the other). I don't want to check the type of a value.
> 
> I want to know if the custom types defined for two variables are compatible:
> whether the type defined for var1 is compatible with the type defined for
> var2. If the type of var1 is `regexp' and the type of var2 is `string', for
> example, then the types are compatible (var1's type <= var2's type) -
> regardless of the current values. Testing current values is not sufficient.
> 
> It's really what I said before:
> 
>>>> Given a custom type, how can I find all user options that
>>>> have that type (or a compatible type, such as a subtype)?
> 
> By "have that type", I meant "are defined with that type", not "have values
> of that type".


Ah, sorry, I see. I think that would require some work, especially since 
the same type may be expressed in several ways in custom.