mirror of
https://git.lyx.org/repos/lyx.git
synced 2024-11-09 18:31:04 +00:00
Add missing facets for extraction from an idocstream on platforms
lacking support for wchar_t. This solves bug 4076. git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@19233 a592a061-630c-0410-9148-cb99ea01b6c8
This commit is contained in:
Enrico Forestieri
parent
6b87509156
commit
128bb9ed49
@ -560,19 +560,146 @@ public:
|
||||
string_num_get_facet() : std::num_get<char, std::basic_string<char>::iterator>(1) {}
|
||||
};
|
||||
|
||||
private:
|
||||
bool isNumpunct(lyx::char_type const c) const
|
||||
/// Numpunct facet defining the I/O format.
|
||||
class numpunct_facet : public std::numpunct<char>
|
||||
{
|
||||
/// Only account for the standard numpunct "C" locale facet.
|
||||
return c < 0x80 && (c == '-' || c == '+' || isdigit(c)
|
||||
|| ('a' <= c && c <= 'f') || ('A' <= c && c <= 'F')
|
||||
|| c == 'x' || c == 'X');
|
||||
}
|
||||
public:
|
||||
numpunct_facet() : std::numpunct<char>(1) {}
|
||||
};
|
||||
|
||||
protected:
|
||||
iter_type
|
||||
do_get(iter_type iit, iter_type eit, std::ios_base & b,
|
||||
std::ios_base::iostate & err, bool & v) const
|
||||
{
|
||||
// This facet has been adapted from the STLPort library
|
||||
if (b.flags() & std::ios_base::boolalpha) {
|
||||
numpunct_facet p;
|
||||
lyx::docstring const truename = from_local8bit(p.truename());
|
||||
lyx::docstring const falsename = from_local8bit(p.falsename());
|
||||
bool true_ok = true;
|
||||
bool false_ok = true;
|
||||
size_t n = 0;
|
||||
for (; iit != eit; ++iit) {
|
||||
lyx::char_type c = *iit;
|
||||
true_ok = true_ok && (c == truename[n]);
|
||||
false_ok = false_ok && (c == falsename[n]);
|
||||
++n;
|
||||
if ((!true_ok && !false_ok) ||
|
||||
(true_ok && n >= truename.size()) ||
|
||||
(false_ok && n >= falsename.size())) {
|
||||
++iit;
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (true_ok && n < truename.size())
|
||||
true_ok = false;
|
||||
if (false_ok && n < falsename.size())
|
||||
false_ok = false;
|
||||
if (true_ok || false_ok) {
|
||||
err = std::ios_base::goodbit;
|
||||
v = true_ok;
|
||||
} else
|
||||
err = std::ios_base::failbit;
|
||||
if (iit == eit)
|
||||
err |= std::ios_base::eofbit;
|
||||
return iit;
|
||||
} else {
|
||||
long l;
|
||||
iter_type end = this->do_get(iit, eit, b, err, l);
|
||||
if (!(err & std::ios_base::failbit)) {
|
||||
if (l == 0)
|
||||
v = false;
|
||||
else if (l == 1)
|
||||
v = true;
|
||||
else
|
||||
err |= std::ios_base::failbit;
|
||||
}
|
||||
return end;
|
||||
}
|
||||
}
|
||||
|
||||
iter_type
|
||||
do_get(iter_type iit, iter_type eit, std::ios_base & b,
|
||||
std::ios_base::iostate & err, long & v) const
|
||||
{
|
||||
return do_get_integer(iit, eit, b, err, v);
|
||||
}
|
||||
|
||||
iter_type
|
||||
do_get(iter_type iit, iter_type eit, std::ios_base & b,
|
||||
std::ios_base::iostate & err, unsigned short & v) const
|
||||
{
|
||||
return do_get_integer(iit, eit, b, err, v);
|
||||
}
|
||||
|
||||
iter_type
|
||||
do_get(iter_type iit, iter_type eit, std::ios_base & b,
|
||||
std::ios_base::iostate & err, unsigned int & v) const
|
||||
{
|
||||
return do_get_integer(iit, eit, b, err, v);
|
||||
}
|
||||
|
||||
iter_type
|
||||
do_get(iter_type iit, iter_type eit, std::ios_base & b,
|
||||
std::ios_base::iostate & err, unsigned long & v) const
|
||||
{
|
||||
return do_get_integer(iit, eit, b, err, v);
|
||||
}
|
||||
|
||||
#ifdef _GLIBCXX_USE_LONG_LONG
|
||||
iter_type
|
||||
do_get(iter_type iit, iter_type eit, std::ios_base & b,
|
||||
std::ios_base::iostate & err, long long & v) const
|
||||
{
|
||||
return do_get_integer(iit, eit, b, err, v);
|
||||
}
|
||||
|
||||
iter_type
|
||||
do_get(iter_type iit, iter_type eit, std::ios_base & b,
|
||||
std::ios_base::iostate & err, unsigned long long & v) const
|
||||
{
|
||||
return do_get_integer(iit, eit, b, err, v);
|
||||
}
|
||||
#endif
|
||||
|
||||
iter_type
|
||||
do_get(iter_type iit, iter_type eit, std::ios_base & b,
|
||||
std::ios_base::iostate & err, float & v) const
|
||||
{
|
||||
return do_get_float(iit, eit, b, err, v);
|
||||
}
|
||||
|
||||
iter_type
|
||||
do_get(iter_type iit, iter_type eit, std::ios_base & b,
|
||||
std::ios_base::iostate & err, double & v) const
|
||||
{
|
||||
return do_get_float(iit, eit, b, err, v);
|
||||
}
|
||||
|
||||
iter_type
|
||||
do_get(iter_type iit, iter_type eit, std::ios_base & b,
|
||||
std::ios_base::iostate & err, long double & v) const
|
||||
{
|
||||
return do_get_float(iit, eit, b, err, v);
|
||||
}
|
||||
|
||||
iter_type
|
||||
do_get(iter_type iit, iter_type eit, std::ios_base & b,
|
||||
std::ios_base::iostate & err, void * & v) const
|
||||
{
|
||||
unsigned long val;
|
||||
iter_type end = do_get_integer(iit, eit, b, err, val);
|
||||
if (!(err & std::ios_base::failbit))
|
||||
v = reinterpret_cast<void *>(val);
|
||||
return end;
|
||||
}
|
||||
|
||||
private:
|
||||
template <typename ValueType>
|
||||
iter_type
|
||||
do_get_integer(iter_type iit, iter_type eit, std::ios_base & b,
|
||||
std::ios_base::iostate & err, ValueType & v) const
|
||||
{
|
||||
std::string s;
|
||||
s.reserve(64);
|
||||
@ -585,9 +712,65 @@ protected:
|
||||
s += ' ';
|
||||
string_num_get_facet f;
|
||||
f.get(s.begin(), s.end(), b, err, v);
|
||||
if (iit == eit)
|
||||
err |= std::ios_base::eofbit;
|
||||
|
||||
return iit;
|
||||
}
|
||||
|
||||
bool isNumpunct(lyx::char_type const c) const
|
||||
{
|
||||
/// Only account for the standard numpunct "C" locale facet.
|
||||
return c < 0x80 && (c == '-' || c == '+' || isdigit(c)
|
||||
|| ('a' <= c && c <= 'f') || ('A' <= c && c <= 'F')
|
||||
|| c == 'x' || c == 'X');
|
||||
}
|
||||
|
||||
template <typename ValueType>
|
||||
iter_type
|
||||
do_get_float(iter_type iit, iter_type eit, std::ios_base & b,
|
||||
std::ios_base::iostate & err, ValueType & v) const
|
||||
{
|
||||
// Gather a string of the form
|
||||
// [+-]? [0-9]* .? [0-9]* ([eE] [+-]? [0-9]+)?
|
||||
std::string s;
|
||||
s.reserve(64);
|
||||
char c;
|
||||
numpunct_facet p;
|
||||
char const dot = p.decimal_point();
|
||||
char const sep = p.thousands_sep();
|
||||
// Get an optional sign
|
||||
if (iit != eit && (*iit == '-' || *iit == '+')) {
|
||||
s += static_cast<char>(*iit);
|
||||
++iit;
|
||||
}
|
||||
for (; iit != eit && isDigitOrSep(*iit, sep); ++iit)
|
||||
s += static_cast<char>(*iit);
|
||||
if (iit != eit && *iit == dot) {
|
||||
s += dot;
|
||||
++iit;
|
||||
for (; iit != eit && isDigitOrSep(*iit, 0); ++iit)
|
||||
s += static_cast<char>(*iit);
|
||||
if (iit != eit && (*iit == 'e' || *iit == 'E')) {
|
||||
s += static_cast<char>(*iit);
|
||||
++iit;
|
||||
for (; iit != eit && isDigitOrSep(*iit, 0); ++iit)
|
||||
s += static_cast<char>(*iit);
|
||||
}
|
||||
}
|
||||
s += '\n';
|
||||
string_num_get_facet f;
|
||||
f.get(s.begin(), s.end(), b, err, v);
|
||||
if (iit == eit)
|
||||
err |= std::ios_base::eofbit;
|
||||
|
||||
return iit;
|
||||
}
|
||||
|
||||
bool isDigitOrSep(lyx::char_type const c, char const sep) const
|
||||
{
|
||||
return (c >= '0' && c <= '9') || (c != 0 && c == sep);
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user