Dynamically load icu (Ubuntu)

PiPedalCommon/src/include/Utf8Utils.hpp

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+// Copyright (c) 2023 Robin E. R. Davies
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy of
+// this software and associated documentation files (the "Software"), to deal in
+// the Software without restriction, including without limitation the rights to
+// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+// the Software, and to permit persons to whom the Software is furnished to do so,
+// subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+#pragma once
+
+
+#include <cstdint>
+#include <string>
+#include <string_view>
+
+namespace pipedal {
+    size_t Utf8Index(size_t size, const std::string &text);
+    size_t Utf8Decrement(size_t size, const std::string &text);
+    size_t Utf8Increment(size_t size, const std::string &text);
+    size_t Utf8Length(const std::string&text);
+
+    std::string Utf8Erase(const std::string&text, size_t start, size_t end);
+    std::string Utf8Substring(const std::string&text, size_t start, size_t end);
+    inline std::string Utf8Substring(const std::string&text, size_t start) { 
+        return Utf8Substring(text,start,(size_t)-1); 
+    }
+    namespace implementation {
+        void Utf8RangeError();
+    }
+
+    std::string Utf8FromUtf32(char32_t value);
+
+
+    std::u16string Utf8ToUtf16(const std::string_view&s);
+    std::string Utf16ToUtf8(const std::u16string_view&s);
+
+
+}
+