inline void append_hex(
std::basic_string<CharT,Traits,Allocator>& s,
boost::uint8_t n, bool is_upper)
{
std::pair<CharT,CharT> hex = to_hex_pair<CharT>(n, is_upper);
s.push_back(hex.first);
s.push_back(hex.second);
}
virtual typename base::int_type
overflow(typename base::int_type __c = base::traits_type::eof())
{
if (__c != base::traits_type::eof())
{
int n = static_cast<int>(str_.size());
str_.push_back(static_cast<CharT>(__c));
str_.resize(str_.capacity());
base::setp(const_cast<CharT*>(str_.data()),
const_cast<CharT*>(str_.data() + str_.size()));
base::pbump(n+1);
}
return __c;
}
std::basic_string < Elem, Traits > cell_encode(std::basic_string < Elem, Traits > Str, Elem Sep_, Elem Esc){
if(Str.find(Sep_) < Str.size() || Str.find(Esc) < Str.size()){
for(auto itr = Str.begin(); itr != Str.end(); ++itr){
if(*itr == Esc){
itr = Str.insert(++itr, Esc);
}
}
Str.insert(Str.begin(), Esc);
Str.push_back(Esc);
}
return std::move(Str);
}
virtual typename base::int_type
overflow(typename base::int_type ch = base::traits_type::eof())
{
if (ch != base::traits_type::eof())
{
std::size_t n = str_.size();
str_.push_back(static_cast<CharT>(ch));
str_.resize(str_.capacity());
base::setp(const_cast<CharT*>(str_.data()),
const_cast<CharT*>(str_.data() + str_.size()));
base::pbump(static_cast<int>(n+1));
}
return ch;
}
void unescape_wide_string(
const std::string &src,
std::basic_string<unsigned int> &dest)
{
dest.reserve(src.size()); // about that long, but may be shorter
for(unsigned i=0; i<src.size(); i++)
{
unsigned int ch=(unsigned char)src[i];
if(ch=='\\') // escape?
{
i++;
assert(i<src.size()); // backslash can't be last character
ch=(unsigned char)src[i];
switch(ch)
{
case '\\': dest.push_back(ch); break;
case 'n': dest.push_back('\n'); break; /* NL (0x0a) */
case 't': dest.push_back('\t'); break; /* HT (0x09) */
case 'v': dest.push_back('\v'); break; /* VT (0x0b) */
case 'b': dest.push_back('\b'); break; /* BS (0x08) */
case 'r': dest.push_back('\r'); break; /* CR (0x0d) */
case 'f': dest.push_back('\f'); break; /* FF (0x0c) */
case 'a': dest.push_back('\a'); break; /* BEL (0x07) */
case '"': dest.push_back('"'); break;
case '\'': dest.push_back('\''); break;
case 'u': // universal character
case 'U': // universal character
i++;
{
std::string hex;
unsigned count=(ch=='u')?4:8;
hex.reserve(count);
for(; count!=0 && i<src.size(); i++, count--)
hex+=src[i];
// go back
i--;
unsigned int result;
sscanf(hex.c_str(), "%x", &result);
ch=result;
}
dest.push_back(ch);
break;
case 'x': // hex
i++;
{
std::string hex;
while(i<src.size() && isxdigit(src[i]))
{
hex+=src[i];
i++;
}
// go back
i--;
unsigned int result;
sscanf(hex.c_str(), "%x", &result);
ch=result;
}
dest.push_back(ch);
break;
default:
if(isdigit(ch)) // octal
{
std::string octal;
while(i<src.size() && isdigit(src[i]))
{
octal+=src[i];
i++;
}
// go back
i--;
unsigned int result;
sscanf(octal.c_str(), "%o", &result);
ch=result;
dest.push_back(ch);
}
else
{
// Unknown escape sequence.
// Both GCC and CL turn \% into %.
dest.push_back(ch);
}
}
}
else
dest.push_back(ch);
}
}
bool join_sub_string
(
const basic_cstring_view<CharT, Traits>& in,
typename basic_cstring_view<CharT, Traits>::size_type& pos,
std::basic_string<CharT, Traits, Allocator>& out,
InputIterator valuesBegin,
InputIterator valuesEnd,
bool optional
)
{
using string_type = std::basic_string<CharT, Traits, Allocator>;
using size_type = typename string_type::size_type;
bool escapeChar = false;
bool replacedAllValues = true;
const auto numValues = static_cast<size_type>(std::distance(valuesBegin, valuesEnd));
if (numValues < 0)
throw std::invalid_argument("reversed range iterators in join_string");
for (auto num = in.size(); pos < num;)
{
/* Get next character */
auto c = in[pos++];
if (escapeChar)
{
/* Add character without transformation to output string */
out.push_back(c);
escapeChar = false;
}
else
{
if (c == CharT('\\'))
{
/* Next character will be added without transformation */
escapeChar = true;
}
else if (c == CharT('{'))
{
/* Parse index N in '{N}' */
string_type idxStr;
while (pos < num)
{
/* Get next character */
c = in[pos++];
if (c == CharT('}'))
break;
else
idxStr.push_back(c);
}
/* Get value by index from array */
const auto idx = static_cast<size_type>(std::stoul(idxStr));
if (idx < numValues)
{
/* Append value to output string */
const auto& val = *(valuesBegin + idx);
if (string_empty(val))
replacedAllValues = false;
else
string_append(out, val);
}
else if (optional)
{
/* This sub string will not be added to the final output string */
replacedAllValues = false;
}
else
{
/* If this value replacement was not optional -> error */
throw std::out_of_range(
"index (" + std::to_string(idx) + ") out of range [0, " +
std::to_string(numValues) + ") in join_string"
);
}
}
else if (c == CharT('['))
{
/* Parse optional part with recursive call */
string_type outOpt;
if (join_sub_string(in, pos, outOpt, valuesBegin, valuesEnd, true))
out.append(outOpt);
}
else if (c == CharT(']'))
{
/* Close optional part and return from recursive call */
break;
}
else
{
/* Add current character to output string */
out.push_back(c);
}
}
}
if (escapeChar)
throw std::invalid_argument("incomplete escape character in report string");
return replacedAllValues;
}
bool enum_file_lines::GetTString(std::vector<T>& From, std::basic_string<T>& To, eol::type& Eol, bool bBigEndian) const
{
To.clear();
// Обработка ситуации, когда у нас пришёл двойной \r\r, а потом не было \n.
// В этом случаем считаем \r\r двумя MAC окончаниями строк.
if (m_CrCr)
{
m_CrCr = false;
Eol = eol::type::mac;
return true;
}
auto CurrentEol = eol::type::none;
for (const auto* ReadBufPtr = ReadPos < ReadSize? From.data() + ReadPos / sizeof(T) : nullptr; ; ++ReadBufPtr, ReadPos += sizeof(T))
{
if (ReadPos >= ReadSize)
{
if (!(SrcFile.Read(From.data(), ReadBufCount * sizeof(T), ReadSize) && ReadSize))
{
Eol = CurrentEol;
return !To.empty() || CurrentEol != eol::type::none;
}
if (bBigEndian && sizeof(T) != 1)
{
swap_bytes(From.data(), From.data(), ReadSize);
}
ReadPos = 0;
ReadBufPtr = From.data();
}
if (CurrentEol == eol::type::none)
{
// UNIX
if (*ReadBufPtr == m_Eol.lf<T>())
{
CurrentEol = eol::type::unix;
continue;
}
// MAC / Windows? / Notepad?
else if (*ReadBufPtr == m_Eol.cr<T>())
{
CurrentEol = eol::type::mac;
continue;
}
}
else if (CurrentEol == eol::type::mac)
{
if (m_CrSeen)
{
m_CrSeen = false;
// Notepad
if (*ReadBufPtr == m_Eol.lf<T>())
{
CurrentEol = eol::type::bad_win;
continue;
}
else
{
// Пришёл \r\r, а \n не пришёл, поэтому считаем \r\r двумя MAC окончаниями строк
m_CrCr = true;
break;
}
}
else
{
// Windows
if (*ReadBufPtr == m_Eol.lf<T>())
{
CurrentEol = eol::type::win;
continue;
}
// Notepad or two MACs?
else if (*ReadBufPtr == m_Eol.cr<T>())
{
m_CrSeen = true;
continue;
}
else
{
break;
}
}
}
else
{
break;
}
To.push_back(*ReadBufPtr);
CurrentEol = eol::type::none;
}
Eol = CurrentEol;
return true;
}