feat!: Breaking changes, reworked the KString API inside the ne_kernel.

Signed-off-by: Amlal El Mahrouss <amlal@nekernel.org>

1 files changed, 181 insertions, 0 deletions

diff --git a/dev/kernel/NeKit/KString.inl b/dev/kernel/NeKit/KString.inl
new file mode 100644
index 00000000..a0dd3623
--- /dev/null
+++ b/dev/kernel/NeKit/KString.inl
@@ -0,0 +1,181 @@
+/* -------------------------------------------
+
+  Copyright (C) 2024-2025, Amlal El Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#include <NeKit/Utils.h>
+
+/// @file BasicKString<>.cc
+/// @brief Kernel String manipulation file.
+
+namespace Kernel {
+inline void rt_string_append(Char* lhs, const Char* rhs, Int32 cur) {
+  SizeT sz_rhs = rt_string_len(rhs);
+  SizeT rhs_i  = 0;
+
+  for (; rhs_i < sz_rhs; ++rhs_i) {
+    lhs[rhs_i + cur] = rhs[rhs_i];
+  }
+}
+
+template<>
+inline Char* BasicKString<>::Data() {
+  return this->fData;
+}
+
+template<>
+inline const Char* BasicKString<>::CData() const {
+  return const_cast<const Char*>(this->fData);
+}
+
+template<>
+inline SizeT BasicKString<>::Length() const {
+  return this->fDataSz;
+}
+
+template<>
+inline bool BasicKString<>::operator==(const BasicKString<>& rhs) const {
+  if (rhs.Length() != this->Length()) return false;
+
+  for (Size index = 0; index < this->Length(); ++index) {
+    if (rhs.fData[index] != this->fData[index]) return false;
+  }
+
+  return true;
+}
+
+template<>
+inline bool BasicKString<>::operator==(const Char* rhs) const {
+  if (rt_string_len(rhs) != this->Length()) return false;
+
+  for (Size index = 0; index < rt_string_len(rhs); ++index) {
+    if (rhs[index] != this->fData[index]) return false;
+  }
+
+  return true;
+}
+
+template<>
+inline bool BasicKString<>::operator!=(const BasicKString<>& rhs) const {
+  if (rhs.Length() != this->Length()) return false;
+
+  for (Size index = 0; index < rhs.Length(); ++index) {
+    if (rhs.fData[index] == this->fData[index]) return false;
+  }
+
+  return true;
+}
+
+template<>
+inline bool BasicKString<>::operator!=(const Char* rhs) const {
+  if (rt_string_len(rhs) != this->Length()) return false;
+
+  for (Size index = 0; index < rt_string_len(rhs); ++index) {
+    if (rhs[index] == this->fData[index]) return false;
+  }
+
+  return true;
+}
+
+template<>
+inline BasicKString<>& BasicKString<>::operator+=(const BasicKString<>& rhs) {
+  if (rt_string_len(rhs.fData) > this->Length()) return *this;
+
+  rt_string_append(this->fData, const_cast<Char*>(rhs.fData), this->fCur);
+  this->fCur += rt_string_len(const_cast<Char*>(rhs.fData));
+
+  return *this;
+}
+
+template<>
+inline BasicKString<>& BasicKString<>::operator+=(const Char* rhs) {
+  rt_string_append(this->fData, const_cast<Char*>(rhs), this->fCur);
+  this->fCur += rt_string_len(const_cast<Char*>(rhs));
+
+  return *this;
+}
+
+inline ErrorOr<BasicKString<>> KStringBuilder::Construct(const Char* data) {
+  if (!data || *data == 0) return ErrorOr<BasicKString<>>(new BasicKString<>(0));
+
+  BasicKString<>* view = new BasicKString<>(rt_string_len(data));
+  (*view) += data;
+
+  return ErrorOr<BasicKString<>>(*view);
+}
+
+inline const Char* KStringBuilder::FromBool(const Char* fmt, bool i) {
+  if (!fmt) return ("?");
+
+  const Char* boolean_expr = i ? "YES" : "NO";
+  Char*       ret          = (Char*) RTL_ALLOCA(rt_string_len(boolean_expr) + rt_string_len(fmt));
+
+  if (!ret) return ("?");
+
+  const auto fmt_len = rt_string_len(fmt);
+  const auto res_len = rt_string_len(boolean_expr);
+
+  for (Size idx = 0; idx < fmt_len; ++idx) {
+    if (fmt[idx] == '%') {
+      SizeT result_cnt = idx;
+
+      for (auto y_idx = idx; y_idx < res_len; ++y_idx) {
+        ret[result_cnt] = boolean_expr[y_idx];
+        ++result_cnt;
+      }
+
+      break;
+    }
+
+    ret[idx] = fmt[idx];
+  }
+
+  return ret;
+}
+
+inline bool KStringBuilder::Equals(const Char* lhs, const Char* rhs) {
+  if (rt_string_len(rhs) != rt_string_len(lhs)) return false;
+
+  for (Size index = 0; index < rt_string_len(rhs); ++index) {
+    if (rhs[index] != lhs[index]) return false;
+  }
+
+  return true;
+}
+
+inline bool KStringBuilder::Equals(const Utf8Char* lhs, const Utf8Char* rhs) {
+  if (urt_string_len(rhs) != urt_string_len(lhs)) return false;
+
+  for (Size index = 0; rhs[index] != 0; ++index) {
+    if (rhs[index] != lhs[index]) return false;
+  }
+
+  return true;
+}
+
+inline const Char* KStringBuilder::Format(const Char* fmt, const Char* fmt2) {
+  if (!fmt || !fmt2) return ("?");
+
+  Char* ret = (Char*) RTL_ALLOCA(sizeof(char) * (rt_string_len(fmt2) + rt_string_len(fmt)));
+
+  if (!ret) return ("?");
+
+  const auto len = rt_string_len(fmt);
+
+  for (Size idx = 0; idx < len; ++idx) {
+    if (fmt[idx] == '%' && idx < rt_string_len(fmt) && fmt[idx] == 's') {
+      Size result_cnt = idx;
+
+      for (Size y_idx = 0; y_idx < rt_string_len(fmt2); ++y_idx) {
+        ret[result_cnt] = fmt2[y_idx];
+        ++result_cnt;
+      }
+    }
+
+    ret[idx] = fmt[idx];
+  }
+
+  return ret;
+}
+}  // namespace Kernel