[GDNative] How do I iterate through the characters in a String using wchar_t

Question

I have a variable of type string String term = String("にほん") and I want to check if any of its characters is in the japanese hiragana charater set. Something like this:

for (auto c : term) {
   if (c >= '\u3040' && c <= '\u309f') {
       return true;
    }
}

How do I do this the godot way in GDNative c++, ideally using String?

I tried doing it with std:string and std:wstring but I don't quiet know how to deal with UTF8 characters in c++.

Comments

excellent question, I also have the problem
I follow the topic

Answer 1

There's a [] operator and length function for a String.

{
  String term = "にほん";
  for (int i = 0; i < term.length(); i++) {
    auto& c = term[i];
     if (c >= L'\u3040' && c <= L'\u309f') {
       Godot::print("{0} :: {1}", i, String(c) );
      }
  }
}

Comments

Nice thank you! I see the L operator. C++ is soo weird.

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It's a normal literal constant modifier.

C++ is not weird, it's designed to be close to a hardware, so you need to explicitly distinguish between different-sized byte sequences.

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Well yea it's weird to me, because I'm just now starting to learn about it, but I totally understand the place c++ has, that's why I'm trying to learn it. Thanks, you really helped me out.