initial rando generator hookup

src/dusk/randomizer/utility/string.cpp

@@ -0,0 +1,52 @@
+#include "../utility/string.hpp"
+
+#include <locale>
+#include <string>
+#include <map>
+#include <iostream>
+#include <cstdarg>
+
+namespace tphdr::utility::str {
+    //can't use codecvt on Wii U, deprecated in c++17 and g++ hates it
+    //Borrowed from https://docs.microsoft.com/en-us/cpp/standard-library/codecvt-class?view=msvc-170#out
+    std::string toUTF8(const std::u16string& str) {
+        if(str.empty()) return "";
+
+        std::string ret;
+        ret.resize(str.size());
+        char* pszNext;
+        const char16_t* pwszNext;
+        std::mbstate_t state = {0}; // zero-initialization represents the initial conversion state for mbstate_t
+        std::locale loc("C");
+        int res = std::use_facet<std::codecvt<char16_t, char, mbstate_t>>(loc).out(state, str.c_str(), &str[str.size()], pwszNext,
+        &ret[0], &ret[ret.size()], pszNext);
+
+        if(res == std::codecvt_base::error) return "";
+        return ret;
+    }
+
+    std::u16string toUTF16(const std::string& str)
+    {
+        if(str.empty()) return u"";
+
+        std::u16string ret;
+        ret.resize(str.size());
+        const char* pszNext;
+        char16_t* pwszNext;
+        std::mbstate_t state = {0}; // zero-initialization represents the initial conversion state for mbstate_t
+        std::locale loc("C");
+        int res = std::use_facet<std::codecvt<char16_t, char, mbstate_t>>(loc).in(state, str.c_str(), &str[str.size()], pszNext,
+        &ret[0], &ret[ret.size()], pwszNext);
+
+        if(res == std::codecvt_base::error) return u"";
+
+        // Remove extra null terminators that may have been created from multi-byte
+        // UTF-8 characters
+        while(ret.size() > 0 && ret[ret.size() - 1] == u'\0')
+        {
+            ret.pop_back();
+        }
+
+        return ret;
+    }
+}