void
print(
std::basic_ostream<
Ch,
Traits
> &_stream,
fcppt::container::tree::object<
Value
> const &_tree,
unsigned const _indent
)
{
for(
unsigned index = 0;
index < _indent;
++index
)
_stream
<< _stream.widen('\t');
_stream
<< _tree.value()
<< _stream.widen('\n');
for(
auto child : _tree
)
fcppt::container::tree::detail::print(
_stream,
child,
_indent + 1u
);
}
basic_csv_ostream<Char, Traits>::basic_csv_ostream
(std::basic_ostream<Char, Traits> & os, char_type delimiter)
: os_(os)
, delim_(delimiter)
, quote_(os.widen(QUOTE))
, first_(true)
{}
basic_csv_ostream<Char, Traits>::basic_csv_ostream
(std::basic_ostream<Char, Traits> & os)
: os_(os)
, delim_(os.widen(COMMA))
, quote_(os.widen(QUOTE))
, first_(true)
{}
void escape_char(std::basic_ostream<Char, Traits> &os, Char c, Char delim) {
const char escape = '\\';
if(c < 32 || c == 0x7f) {
os << escape;
switch(c) {
case '\0': os << os.widen('0'); break;
case '\a': os << os.widen('a'); break;
case '\b': os << os.widen('b'); break;
case '\f': os << os.widen('f'); break;
case '\n': os << os.widen('n'); break;
case '\r': os << os.widen('r'); break;
case '\t': os << os.widen('t'); break;
case '\v': os << os.widen('v'); break;
default: os << os.widen('x') << static_cast<unsigned long>(c);
}
}
else if(c == delim || c == escape) {
os << escape << c;
}
else {
os << c;
}
}
inline void fprint(std::basic_ostream<Elem, Traits>& out, const std::basic_string<Elem, Traits>& str, Args&&... arguments) {
if(sizeof...(arguments) < 1) {
out << str;
return;
}
auto args = std::make_tuple(std::forward<Args>(arguments)...);
string::is_digit cmp;
auto&& length = str.size();
auto&& original_width = out.width();
std::ios_base::fmtflags original_format = out.flags();
auto&& original_precision = out.precision();
for(decltype(str.size()) i = 0; i < length; ++i) {
auto&& c = str[i];
// doesn't start with { so just print it and continue
if(c != out.widen('{')) {
out << c;
continue;
}
// at this point, the character c points to {
// check if we're done printing
if(i + 1 > length) {
out << c;
break;
}
// check the next characters
auto j = i + 1;
unsigned index = 0;
decltype(out.width()) width = 0;
decltype(out.precision()) precision = 0;
auto format = original_format;
// escaped character
if(str[j] == out.widen('{')) {
out << str[i];
i = j;
continue;
}
// now we're at a sane point where we can work with the format string
// check if the next character is a digit
if(cmp(str[j])) {
do {
// since it is, multiply the index
index = (index * 10) + (str[j++] - out.widen('0'));
}
while(j < length && cmp(str[j]));
}
else {
// since it isn't a digit, it doesn't match our format string
throw std::runtime_error("invalid format string specified");
}
// check if alignment argument exists
if(str[j] == out.widen(',')) {
// check if the next character is valid
if(j + 1 < length) {
// check if the alignment is left or right
if(str[j + 1] == out.widen('-')) {
format |= out.left;
// increment by two to get to the numerical section
j += 2;
}
else {
format |= out.right;
++j;
}
// check if the next character is a digit
if(j < length && cmp(str[j])) {
do {
// since it is, multiply the width
width = (width * 10) + (str[j++] - out.widen('0'));
}
while(j < length && cmp(str[j]));
}
else {
// invalid format string found
throw std::runtime_error("invalid format string specified");
}
}
}
// check if format specifier exists
if(str[j] == out.widen(':')) {
// check if the character is valid
if(j + 1 < length) {
auto&& specifier = str[j + 1];
switch(specifier) {
case 'F':
format |= out.fixed;
break;
case 'O':
format = (format & ~out.basefield) | out.oct;
break;
case 'x':
format = (format & ~out.basefield) | out.hex;
break;
case 'X':
format = (format & ~out.basefield) | out.hex | out.uppercase;
break;
case 'E':
format |= out.scientific | out.uppercase;
break;
case 'e':
format |= out.scientific;
break;
case 'B':
format |= out.boolalpha;
break;
case 'S':
format |= out.showpos;
break;
default:
throw std::runtime_error("no such format specifier found");
break;
}
j += 2;
// handle precision specifier
if(j < length && cmp(str[j])) {
do {
precision = (precision * 10) + (str[j++] - out.widen('0'));
}
while(j < length && cmp(str[j]));
}
}
}
// now that we're done processing, handle the results
if(str[j] == out.widen('}')) {
out.flags(format);
out.width(width);
out.precision(precision);
detail::index_printer(out, index, args);
out.width(original_width);
out.flags(original_format);
out.precision(original_precision);
i = j;
}
}
}
inline void fprint(std::basic_ostream<Char, Trait>& out, const Char* str, Args&&... arguments) {
// %[parameter][flags][width][.precision]verb
// if it's *n$ instead of %n$ then it'll use the specific parameter number
// n starts at 1 to sizeof...(Args)
// at the moment I'm too lazy to do * at all.
auto&& args = std::make_tuple(std::forward<Args>(arguments)...);
stream_state<Char, Trait> original{out};
stream_state<Char, Trait> changed;
printer<Char, Trait> func(out);
const Char percent = out.widen('%');
const Char zero = out.widen('0');
auto&& loc = out.getloc();
size_t index = 0;
size_t position = 0;
bool has_positional = false;
while(*str != 0) {
// not a %
if(!Trait::eq(*str, percent)) {
out << *str++;
continue;
}
// at this point -- *str == '%'
// so just increment it to get to the format-spec
++str;
// escaped %
if(*str && Trait::eq(*str, percent)) {
out << percent;
++str;
continue;
}
// beginning of format-spec
changed = original;
// check for [parameter], i.e. n$
// or a numeric value for [width]
position = parse_integer(str, zero, loc);
// check if it's [parameter] rather than [width]
if(Trait::eq(*str, out.widen('$'))) {
has_positional = true;
++str;
}
// check for [flags]
// they are as follows:
// + - equivalent to std::showpos
// - - left aligns instead of right align, i.e. std::left
// 0 - pad with 0s instead of spaces
// '[char] - pad with [char] instead of spaces
while(*str) {
if(Trait::eq(*str, out.widen('+'))) {
changed.flags |= out.showpos;
}
else if(Trait::eq(*str, out.widen('-'))) {
changed.flags |= out.left;
}
else if(Trait::eq(*str, out.widen('0'))) {
changed.fill = out.widen('0');
}
else if(Trait::eq(*str, out.widen('\''))) {
// the next character is unconditionally the fill character
changed.fill = *(++str);
}
else {
// unknown flag, so just exit
break;
}
++str;
}
// check for [width]
changed.width = parse_integer(str, zero, loc);
// check for [precision]
if(Trait::eq(*str, out.widen('.'))) {
changed.precision = parse_integer(++str, zero, loc);
}
size_t final_index = has_positional ? position - 1 : index++;
// check for verb
if(Trait::eq(*str, out.widen('s')) || Trait::eq(*str, out.widen('c'))) {
// do nothing since these don't add any extra format specifiers.
// many of these are provided as a thin compatibility layer for
// the original printf -- albeit strict compatibility is not a requirement here.
}
else if(Trait::eq(*str, out.widen('f')) || Trait::eq(*str, out.widen('F'))) {
changed.flags |= out.fixed;
}
else if(Trait::eq(*str, out.widen('e'))) {
changed.flags |= out.scientific;
}
else if(Trait::eq(*str, out.widen('E'))) {
changed.flags |= out.scientific;
changed.flags |= out.uppercase;
}
else if(Trait::eq(*str, out.widen('g'))) {
changed.flags &= ~out.floatfield;
}
else if(Trait::eq(*str, out.widen('G'))) {
changed.flags &= ~out.floatfield;
changed.flags |= out.uppercase;
}
else if(Trait::eq(*str, out.widen('x')) || Trait::eq(*str, out.widen('p'))) {
changed.flags |= out.hex;
}
else if(Trait::eq(*str, out.widen('X'))) {
changed.flags |= out.hex;
changed.flags |= out.uppercase;
}
else if(Trait::eq(*str, out.widen('d')) || Trait::eq(*str, out.widen('i')) || Trait::eq(*str, out.widen('u'))) {
changed.flags |= out.dec;
}
else if(Trait::eq(*str, out.widen('o'))) {
changed.flags |= out.oct;
}
else {
std::string error = "invalid verb given ";
auto narrowed = out.narrow(*str, 0x00);
if(narrowed == 0x00) {
error.push_back('\'');
error.push_back(narrowed);
error.push_back('\'');
}
else {
error.append(" (unable to convert to char)");
}
throw std::runtime_error(error);
}
changed.apply(out);
apply(args, final_index, func);
original.apply(out);
++str;
}
}
typename
std::enable_if<
mizuiro::color::is_color<
Color
>::value,
std::basic_ostream<
Ch,
Traits
> &
>::type
operator<<(
std::basic_ostream<
Ch,
Traits
> &_stream,
Color const &_color
)
{
_stream
<< _stream.widen('(');
mizuiro::color::for_each_channel(
_color,
[
&_color,
&_stream
](
auto const _channel
)
{
_stream
<<
static_cast<
mizuiro::detail::promote_type<
mizuiro::color::types::channel_value<
mizuiro::color::format::get<
Color
>,
std::remove_const_t<
decltype(
_channel
)
>
>
>
>(
_color.get(
_channel
)
)
<<
// FIXME
_stream.widen(',');
}
);
_stream
<< _stream.widen(')');
return
_stream;
}
