Larry Wall schreef: > Dr.Ruud: >> What would be the way to define-or-set that a specific hash has >> non-case-sensitive keys? > > Use a shaped hash with a key type that defines infix:<===> > appropriately, since object hashes are based on infix:<===> rather > than infix:<eq>.
Suppose I want the keys to be Normalization-Form-C, and the values to be regexes, would this be the way to say that? my Regex %hash{ NFC } ; http://www.unicode.org/notes/tn5/ http://icu.sourceforge.net/ http://www.ibm.com/software/globalization/icu/ >> Or broader: that the keys should be normalized (think NFKC()) before >> usage? > > I think it would be up to the type to generate, transform to and/or > cache such a canonicalized key. OK, alternatively "delegate it to the type". >> Would it be easy to "delegate it to the hash"? (or use a hardly >> noticeable wrapper) > > Probably--just give the hash a shape with a key type that is easily > coerced from the input types, I suspect. Hash keys could probably > afford to do an implicit .as(KeyType) even if the current language > were to disallow implicit conversions in general. Maybe not hash keys in general, but only hash keys of a type that needs it. But wait, even stringification is coercion. -- Affijn, Ruud "Gewoon is een tijger."