Most efficient way to replace unicode characters from a string in C++ 17

Question

I need a string of only ASCII characters, I get the original string from a text file, so it could contain any character, and I want to replace those encoded characters with a space or some other char

the reason why I only need ASCII is because I need to identify tokens, keywords, literals, etc, and the reason why I don't need to modify the original string, or throw an error is because what I am doing isn't a compiler, it's a kind of intellisense/autocompletition for a little known language

If that's not the correct approach, and I should iterate over the original string anyway, how can I read encoded characters as just one char?

question from:https://stackoverflow.com/questions/65886075/most-efficient-way-to-replace-unicode-characters-from-a-string-in-c-17

Answer 1

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