"strasse".Equals("STRAße",StringComparison.InvariantCultureIgnoreCase) This returns true. Which is correct. Unfortunately, when I store one of these in postgres, it thinks they are not the same w...

To compare two strings case insensitively, one correct way is to case fold them first. How is this better than upper casing or lower casing? I find examples where lower casing doesn't work right on...

I want to have a key insensitive string as key. Is it supported by the language or do I have to create it myself? thank you Edit: What I am looking for is a way to make it by default instead of h...

Are there JavaScript polyfill implementations of String.toLowerCase() and String.toUpperCase(), or other methods in JavaScript that can work with Unicode characters and are consistent across browse...

I'm trying to get case folding to be consistent between three languages (C++, Python and Golang) because I need to be able to check if a string matches the one saved no matter the language. An exa...

Been recently reading on casefold and string comparisons when ignoring case. I've read that the MSDN standard is to use InvariantCulture and definitely avoid toLowercase. However, casefold from wha...

I'm trying to implement a library for reading Microsoft CFB (Compound File Binary) Format files, according to the official specification of that format. The specification is available from this sit...

It sounds like a joke, but I can sort of prove it. Assumptions: Dot matches any single character. A case-insensitive pattern matches s if and only if it matches s.toUpperCase(). All of the fol...

I have a problem with converting uppercase letters with umlauts to lowercase ones. print("ÄÖÜAOU".lower()) The A, O and the U gets converted properly but the Ä,Ö and Ü stays uppercase. Any ideas...