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/* -------------------------------------------
Copyright (C) 2024-2025, Amlal El Mahrouss, all rights reserved.
------------------------------------------- */
#include <NewKit/KString.h>
#include <NewKit/Utils.h>
/// @file KString.cc
/// @brief Kernel String manipulation file.
namespace Kernel
{
Char* KString::Data()
{
return this->fData;
}
const Char* KString::CData() const
{
return const_cast<const Char*>(this->fData);
}
Size KString::Length() const
{
return this->fDataSz;
}
bool KString::operator==(const KString& 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;
}
bool KString::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;
}
bool KString::operator!=(const KString& 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;
}
bool KString::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;
}
ErrorOr<KString> KStringBuilder::Construct(const Char* data)
{
if (!data || *data == 0)
return {};
KString* view = new KString(rt_string_len(data));
(*view) += data;
return ErrorOr<KString>(*view);
}
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;
}
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;
}
bool KStringBuilder::Equals(const WideChar* lhs, const WideChar* rhs)
{
for (Size index = 0; rhs[index] != 0; ++index)
{
if (rhs[index] != lhs[index])
return false;
}
return true;
}
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;
}
STATIC 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];
}
}
KString& KString::operator+=(const Char* rhs)
{
rt_string_append(this->fData, rhs, this->fCur);
this->fCur += rt_string_len(rhs);
return *this;
}
KString& KString::operator+=(const KString& 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;
}
} // namespace Kernel
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