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-rw-r--r--dev/lib/core/chunk_string.hpp102
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+/*
+* File: core/chunk_string.hpp
+ * Purpose: String implementation for the OCL C++ library.
+ * Author: Amlal El Mahrouss (amlal@nekernel.org)
+ * Copyright 2025, Amlal El Mahrouss
+ */
+
+#ifndef OCL_UTILITY_CHUNK_STRING_HPP
+#define OCL_UTILITY_CHUNK_STRING_HPP
+
+#include <lib/core/includes.hpp>
+
+namespace ocl
+{
+ template <typename char_type, std::size_t max_chunk_size = 8196>
+ class basic_chunk_string;
+
+ template <typename char_type, std::size_t max_chunk_size>
+ class basic_chunk_string final
+ {
+ private:
+ char_type packed_chunks_[max_chunk_size] = {0};
+ std::size_t chunk_total_{};
+
+ bool bad_{false};
+
+ public:
+ const bool& bad{bad_};
+
+ basic_chunk_string() = default;
+
+ basic_chunk_string(const char_type* in)
+ {
+ this->operator+=(in);
+ }
+
+ basic_chunk_string(const std::basic_string<char_type>& in)
+ {
+ this->operator+=(in);
+ }
+
+ ~basic_chunk_string() = default;
+
+ basic_chunk_string& operator=(const basic_chunk_string&) = delete;
+ basic_chunk_string(const basic_chunk_string&) = delete;
+
+ public:
+ basic_chunk_string& operator+=(const std::basic_string<char_type>& in)
+ {
+ if (in.empty() || bad_)
+ return *this;
+
+ if (in.size() > max_chunk_size)
+ {
+ bad_ = true;
+ return *this;
+ }
+
+ if (chunk_total_ > max_chunk_size)
+ {
+ bad_ = true;
+ return *this;
+ }
+
+ const auto& sz = in.size();
+ const static auto size_max_chunk = max_chunk_size;
+ const auto& ptr = in.data();
+
+ if (chunk_total_ < size_max_chunk)
+ {
+ std::memcpy(packed_chunks_ + chunk_total_, ptr, sz);
+ chunk_total_ += sz;
+ }
+
+ return *this;
+ }
+
+ std::basic_string<char_type> str() const noexcept
+ {
+ static std::basic_string<char_type> ret;
+
+ if (ret.size() > 0)
+ ret.clear();
+
+ ret += packed_chunks_;
+
+ return ret;
+ }
+
+ void print() noexcept
+ {
+ ocl::io::print(packed_chunks_);
+ }
+ };
+
+ template <typename char_type>
+ inline void print(basic_chunk_string<char_type>& fmt) noexcept
+ {
+ fmt.print();
+ }
+} // namespace ocl
+#endif // ifndef OCL_UTILITY_CHUNK_STRING_HPP