enum_file_lines::enum_file_lines(const os::fs::file& SrcFile, uintptr_t CodePage) :
SrcFile(SrcFile),
BeginPos(SrcFile.GetPointer()),
m_CodePage(CodePage),
m_Eol(m_CodePage)
{
if (m_CodePage == CP_UNICODE || m_CodePage == CP_REVERSEBOM)
m_wReadBuf.resize(ReadBufCount);
else
m_ReadBuf.resize(ReadBufCount);
m_wStr.reserve(DELTA);
}
bool GetLangParam(const os::fs::file& LangFile, string_view const ParamName, string& strParam1, string* strParam2, uintptr_t CodePage)
{
const auto strFullParamName = concat(L'.', ParamName);
const auto CurFilePos = LangFile.GetPointer();
SCOPE_EXIT{ LangFile.SetPointer(CurFilePos, nullptr, FILE_BEGIN); };
for (const auto& i: enum_file_lines(LangFile, CodePage))
{
if (starts_with_icase(i.Str, strFullParamName))
{
const auto EqPos = i.Str.find(L'=');
if (EqPos != string::npos)
{
assign(strParam1, i.Str.substr(EqPos + 1));
if (strParam2)
strParam2->clear();
const auto pos = strParam1.find(L',');
if (pos != string::npos)
{
if (strParam2)
{
*strParam2 = trim_right(strParam1.substr(pos + 1));
}
strParam1.resize(pos);
}
inplace::trim_right(strParam1);
return true;
}
}
else if (starts_with(i.Str, L'"'))
{
// '"' indicates some meaningful string.
// Parameters can be only in the header, no point to go deeper
return false;
}
}
return false;
}