void test_strview_basics(const string_view& sv, const char *p, size_t n) {
ASSERT_EQ(p, sv.data());
ASSERT_EQ(n, sv.size());
ASSERT_EQ(n, sv.length());
ASSERT_EQ((n == 0), sv.empty());
ASSERT_EQ(p, sv.cbegin());
ASSERT_EQ(p, sv.begin());
ASSERT_EQ(p + n, sv.cend());
ASSERT_EQ(p + n, sv.end());
using reviter_t = std::reverse_iterator<string_view::const_iterator>;
ASSERT_EQ(reviter_t(sv.end()), sv.rbegin());
ASSERT_EQ(reviter_t(sv.begin()), sv.rend());
ASSERT_EQ(reviter_t(sv.cend()), sv.crbegin());
ASSERT_EQ(reviter_t(sv.cbegin()), sv.crend());
for (size_t i = 0; i < n; ++i) {
ASSERT_EQ(p[i], sv[i]);
ASSERT_EQ(p[i], sv.at(i));
}
ASSERT_THROW(sv.at(n), std::out_of_range);
ASSERT_THROW(sv.at(string_view::npos), std::out_of_range);
if (n > 0) {
ASSERT_EQ(p, &(sv.front()));
ASSERT_EQ(p + (n-1), &(sv.back()));
ASSERT_EQ(p[0], sv.front());
ASSERT_EQ(p[n-1], sv.back());
}
}
size_t find_icase(string_view const Str, wchar_t const What, size_t Pos)
{
if (Pos >= Str.size())
return Str.npos;
const auto It = std::find_if(Str.cbegin() + Pos, Str.cend(), [&](wchar_t const Char) { return equal_icase_t{}(What, Char); });
return It == Str.cend() ? Str.npos : It - Str.cbegin();
}
size_t find_icase(string_view const Str, string_view const What, size_t Pos)
{
if (Pos >= Str.size())
return Str.npos;
const auto It = std::search(Str.cbegin() + Pos, Str.cend(), ALL_CONST_RANGE(What), equal_icase_t{});
return It == Str.cend()? Str.npos : It - Str.cbegin();
}
int main()
{
typedef std::experimental::string_view string_view;
typedef std::experimental::u16string_view u16string_view;
typedef std::experimental::u32string_view u32string_view;
typedef std::experimental::wstring_view wstring_view;
test(string_view ());
test(u16string_view());
test(u32string_view());
test(wstring_view ());
test(string_view ( "123"));
test(wstring_view (L"123"));
#if __cplusplus >= 201103L
test(u16string_view{u"123"});
test(u32string_view{U"123"});
#endif
#if _LIBCPP_STD_VER > 11
{
constexpr string_view sv { "123", 3 };
constexpr u16string_view u16sv {u"123", 3 };
constexpr u32string_view u32sv {U"123", 3 };
constexpr wstring_view wsv {L"123", 3 };
static_assert ( *sv.begin() == sv[0], "" );
static_assert ( *u16sv.begin() == u16sv[0], "" );
static_assert ( *u32sv.begin() == u32sv[0], "" );
static_assert ( *wsv.begin() == wsv[0], "" );
static_assert ( *sv.cbegin() == sv[0], "" );
static_assert ( *u16sv.cbegin() == u16sv[0], "" );
static_assert ( *u32sv.cbegin() == u32sv[0], "" );
static_assert ( *wsv.cbegin() == wsv[0], "" );
}
#endif
}
std::list<CommandLine::segment> CommandLine::GetPrompt()
{
FN_RETURN_TYPE(CommandLine::GetPrompt) Result;
int NewPromptSize = DEFAULT_CMDLINE_WIDTH;
const auto& PrefixColor = colors::PaletteColorToFarColor(COL_COMMANDLINEPREFIX);
if (Global->Opt->CmdLine.UsePromptFormat)
{
const string_view Format = Global->Opt->CmdLine.strPromptFormat.Get();
auto Tail = Format.cbegin();
auto Color = PrefixColor;
FOR_CONST_RANGE(Format, Iterator)
{
bool Stop;
auto NewColor = PrefixColor;
const auto NextIterator = colors::ExtractColorInNewFormat(Iterator, Format.cend(), NewColor, Stop);
if (NextIterator == Iterator)
{
if (Stop)
break;
continue;
}
if (Iterator != Format.cbegin())
{
Result.emplace_back(segment{ string(Tail, Iterator), Color });
}
Iterator = NextIterator;
Tail = Iterator;
Color = NewColor;
}
Result.emplace_back(segment{ string(Tail, Format.cend()), Color });
for (auto Iterator = Result.begin(); Iterator != Result.end(); ++Iterator)
{
const auto strExpandedDestStr = os::env::expand(Iterator->Text);
Iterator->Text.clear();
static const std::pair<wchar_t, wchar_t> ChrFmt[] =
{
{L'A', L'&'}, // $A - & (Ampersand)
{L'B', L'|'}, // $B - | (pipe)
{L'C', L'('}, // $C - ( (Left parenthesis)
{L'F', L')'}, // $F - ) (Right parenthesis)
{L'G', L'>'}, // $G - > (greater-than sign)
{L'L', L'<'}, // $L - < (less-than sign)
{L'Q', L'='}, // $Q - = (equal sign)
{L'S', L' '}, // $S - (space)
{L'$', L'$'}, // $$ - $ (dollar sign)
};
FOR_CONST_RANGE(strExpandedDestStr, it)
{
auto& strDestStr = Iterator->Text;
if (*it == L'$' && it + 1 != strExpandedDestStr.cend())
{
const auto Chr = upper(*++it);
const auto ItemIterator = std::find_if(CONST_RANGE(ChrFmt, Item)
{
return Item.first == Chr;
});
if (ItemIterator != std::cend(ChrFmt))
{
strDestStr += ItemIterator->second;
}
else
{
const auto& AddCollapsible = [&](string&& Str)
{
if (strDestStr.empty())
{
strDestStr = std::move(Str);
Iterator->Collapsible = true;
}
else
{
Iterator = Result.insert(std::next(Iterator), segment{ std::move(Str), Iterator->Colour, true });
}
// No need to introduce a new segment if we're at the very end
if (std::next(Iterator) != Result.end() && std::next(it) != strExpandedDestStr.cend())
{
Iterator = Result.insert(std::next(Iterator), segment{ {}, Iterator->Colour, false });
}
};
switch (Chr)
{
/* эти не реaлизованы
$E - Escape code (ASCII code 27)
$V - Windows version number
$_ - Carriage return and linefeed
*/
case L'M': // $M - Отображение полного имени удаленного диска, связанного с именем текущего диска, или пустой строки, если текущий диск не является сетевым.
{
string strTemp;
if (DriveLocalToRemoteName(DRIVE_UNKNOWN, m_CurDir[0], strTemp))
{
AddCollapsible(std::move(strTemp));
}
break;
}
case L'+': // $+ - Отображение нужного числа знаков плюс (+) в зависимости от текущей глубины стека каталогов PUSHD, по одному знаку на каждый сохраненный путь.
{
strDestStr.append(ppstack.size(), L'+');
break;
}
case L'H': // $H - Backspace (erases previous character)
{
if (!strDestStr.empty())
{
strDestStr.pop_back();
}
else
{
auto Prev = Iterator;
while (Prev != Result.begin())
{
--Prev;
if (!Prev->Text.empty())
{
Prev->Text.pop_back();
break;
}
}
}
break;
}
case L'@': // $@xx - Admin
{
if (it + 1 != strExpandedDestStr.cend())
{
const auto lb = *++it;
if (it + 1 != strExpandedDestStr.cend())
{
const auto rb = *++it;
if (os::security::is_admin())
{
append(strDestStr, lb, msg(lng::MConfigCmdlinePromptFormatAdmin), rb);
}
}
}
break;
}
case L'D': // $D - Current date
case L'T': // $T - Current time
{
strDestStr += MkStrFTime(Chr == L'D'? L"%D" : L"%T");
break;
}
case L'N': // $N - Current drive
{
const auto Type = ParsePath(m_CurDir);
if(Type == root_type::drive_letter)
strDestStr += upper(m_CurDir[0]);
else if(Type == root_type::unc_drive_letter)
strDestStr += upper(m_CurDir[4]);
else
strDestStr += L'?';
break;
}
case L'W': // $W - Текущий рабочий каталог (без указания пути)
{
const auto pos = FindLastSlash(m_CurDir);
if (pos != string::npos)
{
AddCollapsible(m_CurDir.substr(pos + 1));
}
break;
}
case L'P': // $P - Current drive and path
{
AddCollapsible(string{ m_CurDir });
break;
}
case L'#': //$#nn - max prompt width in %
{
if (it + 1 != strExpandedDestStr.end())
{
size_t pos;
if (from_string(string(it + 1, strExpandedDestStr.cend()), NewPromptSize, &pos))
it += pos;
// else
// bad format, NewPromptSize unchanged
// TODO: diagnostics
}
}
}
if (it == strExpandedDestStr.cend())
{
break;
}
}
}
else
{
