meta: add c++ wrapper of core module

core-mm/include/blue/core/encoding.hpp

@@ -0,0 +1,106 @@
+#ifndef BLUE_CORE_ENCODING_HPP_
+#define BLUE_CORE_ENCODING_HPP_
+
+#include <blue/core/encoding.h>
+#include <cstddef>
+#include <cstdint>
+
+namespace blue::core
+{
+class wchar
+{
+    public:
+	static const int32_t INVALID = B_WCHAR_INVALID;
+
+	wchar();
+	wchar(std::int32_t v)
+	    : val_(v)
+	{
+	}
+	static wchar decode(const char *s);
+
+	operator int32_t() const
+	{
+		return val_;
+	}
+
+	bool is_alpha(void) const
+	{
+		return b_wchar_is_alpha(val_);
+	}
+	bool is_number(void) const
+	{
+		return b_wchar_is_number(val_);
+	}
+	bool is_bin_digit(void) const
+	{
+		return b_wchar_is_bin_digit(val_);
+	}
+	bool is_oct_digit(void) const
+	{
+		return b_wchar_is_oct_digit(val_);
+	}
+	bool is_hex_digit(void) const
+	{
+		return b_wchar_is_hex_digit(val_);
+	}
+	bool is_space(void) const
+	{
+		return b_wchar_is_space(val_);
+	}
+	bool is_alnum(void) const
+	{
+		return b_wchar_is_alnum(val_);
+	}
+	bool is_punct(void) const
+	{
+		return b_wchar_is_punct(val_);
+	}
+
+	bool is_valid_utf8_scalar(void) const
+	{
+		return b_wchar_utf8_is_valid_scalar(val_);
+	}
+	unsigned int get_utf8_codepoint_size(void) const
+	{
+		return b_wchar_utf8_codepoint_size(val_);
+	}
+
+	unsigned int encode_utf8(char s[4]) const
+	{
+		return b_wchar_utf8_codepoint_encode(val_, s);
+	}
+
+    private:
+	int32_t val_ = B_WCHAR_INVALID;
+};
+
+class utf8
+{
+    public:
+	static unsigned int decode_header(char c)
+	{
+		return b_wchar_utf8_header_decode(c);
+	}
+	static unsigned int get_codepoint_stride(const char *s)
+	{
+		return b_wchar_utf8_codepoint_stride(s);
+	}
+	static std::size_t get_codepoint_count(const char *s, std::size_t nr_bytes)
+	{
+		return b_wchar_utf8_codepoint_count(s, nr_bytes);
+	}
+	static std::size_t get_string_encoded_size(
+		const wchar *s, std::size_t nr_codepoints)
+	{
+		return b_wchar_utf8_string_encoded_size(
+			reinterpret_cast<const b_wchar *>(s), nr_codepoints);
+	}
+
+    private:
+	utf8() = delete;
+	~utf8() = delete;
+};
+}
+
+#endif