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_monetary.c
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2002-02-02
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/*
* Copyright (c) 1999
* Silicon Graphics Computer Systems, Inc.
*
* Copyright (c) 1999
* Boris Fomitchev
*
* This material is provided "as is", with absolutely no warranty expressed
* or implied. Any use is at your own risk.
*
* Permission to use or copy this software for any purpose is hereby granted
* without fee, provided the above notices are retained on all copies.
* Permission to modify the code and to distribute modified code is granted,
* provided the above notices are retained, and a notice that the code was
* modified is included with the above copyright notice.
*
*/
#ifndef _STLP_MONETARY_C
#define _STLP_MONETARY_C
# ifndef _STLP_INTERNAL_MONETARY_H
# include <stl/_monetary.h>
# endif
# if defined (_STLP_EXPOSE_STREAM_IMPLEMENTATION)
#ifndef _STLP_INTERNAL_IOS_H
# include <stl/_ios.h>
#endif
#ifndef _STLP_INTERNAL_NUM_PUT_H
# include <stl/_num_put.h>
#endif
#ifndef _STLP_INTERNAL_NUM_GET_H
# include <stl/_num_get.h>
#endif
_STLP_BEGIN_NAMESPACE
# if ( _STLP_STATIC_TEMPLATE_DATA > 0 )
template <class _CharT, class _InputIterator>
locale::id money_get<_CharT, _InputIterator>::id;
template <class _CharT, class _OutputIterator>
locale::id money_put<_CharT, _OutputIterator>::id;
# else /* ( _STLP_STATIC_TEMPLATE_DATA > 0 ) */
typedef money_get<char, const char*> money_get_char;
typedef money_put<char, char*> money_put_char;
typedef money_get<char, istreambuf_iterator<char, char_traits<char> > > money_get_char_2;
typedef money_put<char, ostreambuf_iterator<char, char_traits<char> > > money_put_char_2;
__DECLARE_INSTANCE(locale::id, money_get_char::id, );
__DECLARE_INSTANCE(locale::id, money_put_char::id, );
__DECLARE_INSTANCE(locale::id, money_get_char_2::id, );
__DECLARE_INSTANCE(locale::id, money_put_char_2::id, );
# ifndef _STLP_NO_WCHAR_T
typedef money_get<wchar_t, const wchar_t*> money_get_wchar_t;
typedef money_get<wchar_t, istreambuf_iterator<wchar_t, char_traits<wchar_t> > > money_get_wchar_t_2;
typedef money_put<wchar_t, wchar_t*> money_put_wchar_t;
typedef money_put<wchar_t, ostreambuf_iterator<wchar_t, char_traits<wchar_t> > > money_put_wchar_t_2;
__DECLARE_INSTANCE(locale::id, money_get_wchar_t::id, );
__DECLARE_INSTANCE(locale::id, money_put_wchar_t::id, );
__DECLARE_INSTANCE(locale::id, money_get_wchar_t_2::id, );
__DECLARE_INSTANCE(locale::id, money_put_wchar_t_2::id, );
# endif
# endif /* ( _STLP_STATIC_TEMPLATE_DATA > 0 ) */
// money_get facets
// helper functions for do_get
template <class _InIt1, class _InIt2>
pair<_InIt1, bool> __get_string(_InIt1 __first, _InIt1 __last,
_InIt2 __str_first, _InIt2 __str_last) {
pair<_InIt1, _InIt2> __pr = mismatch(__first, __last, __str_first);
return make_pair(__pr.first, __pr.second == __str_last);
}
template <class _InIt, class _OuIt, class _CharT>
bool
__get_monetary_value(_InIt& __first, _InIt __last, _OuIt __out,
const ctype<_CharT>& _c_type,
_CharT __point,
int __frac_digits,
_CharT __sep,
const string& __grouping,
bool& __syntax_ok)
{
if (__first == __last || !_c_type.is(ctype_base::digit, *__first))
return false;
char __group_sizes[128];
char* __group_sizes_end = __grouping.size() == 0 ? 0 : __group_sizes;
char __current_group_size = 0;
while (__first != __last) {
if (_c_type.is(ctype_base::digit, *__first)) {
++__current_group_size;
*__out++ = *__first++;
}
else if (__group_sizes_end) {
if (*__first == __sep) {
*__group_sizes_end++ = __current_group_size;
__current_group_size = 0;
++__first;
}
else break;
}
else
break;
}
if (__grouping.size() == 0)
__syntax_ok = true;
else {
if (__group_sizes_end != __group_sizes)
*__group_sizes_end++ = __current_group_size;
__syntax_ok = __valid_grouping(__group_sizes, __group_sizes_end,
__grouping.data(), __grouping.data()+ __grouping.size());
if (__first == __last || *__first != __point) {
for (int __digits = 0; __digits != __frac_digits; ++__digits)
*__out++ = _CharT('0');
return true; // OK not to have decimal point
}
}
++__first;
size_t __digits = 0;
while (__first != __last && _c_type.is(ctype_base::digit, *__first)) {
*__out++ = *__first++;
++__digits;
}
__syntax_ok = __syntax_ok && (__digits == __frac_digits);
return true;
}
# ifndef _STLP_NO_LONG_DOUBLE
//===== methods ======
template <class _CharT, class _InputIter>
_InputIter
money_get<_CharT, _InputIter>::do_get(_InputIter __s, _InputIter __end, bool __intl,
ios_base& __str, ios_base::iostate& __err,
long double& __units) const {
string_type __buf;
__s = do_get(__s, __end, __intl, __str, __err, __buf);
if (__err == ios_base::goodbit || __err == ios_base::eofbit) {
__buf.push_back(0);
typename string_type::iterator __b = __buf.begin(), __e = __buf.end();
// Can't use atold, since it might be wchar_t. Don't get confused by name below :
// it's perfectly capable of reading long double.
__get_decimal_integer(__b, __e, __units);
}
if (__s == __end)
__err |= ios_base::eofbit;
return __s;
}
# endif
template <class _CharT, class _InputIter>
_InputIter
money_get<_CharT, _InputIter>::do_get(iter_type __s,
iter_type __end, bool __intl,
ios_base& __str, ios_base::iostate& __err,
string_type& __digits) const {
if (__s == __end) {
__err |= ios_base::eofbit;
return __s;
}
typedef moneypunct<_CharT, false> _Punct;
typedef moneypunct<_CharT, true> _Punct_intl;
typedef ctype<_CharT> _Ctype;
locale __loc = __str.getloc();
const _Punct& __punct = use_facet<_Punct>(__loc) ;
const _Punct_intl& __punct_intl = use_facet<_Punct_intl>(__loc) ;
const _Ctype& __c_type = use_facet<_Ctype>(__loc) ;
money_base::pattern __format = __intl ? __punct_intl.neg_format()
: __punct.neg_format();
string_type __ns = __intl ? __punct_intl.negative_sign()
: __punct.negative_sign();
string_type __ps = __intl ? __punct_intl.positive_sign()
: __punct.positive_sign();
int __i;
bool __is_positive = true;
bool __symbol_required = (__str.flags() & ios_base::showbase) !=0;
string_type __buf;
back_insert_iterator<string_type> __out(__buf);
// pair<iter_type, bool> __result;
for (__i = 0; __i < 4; ++__i) {
switch (__format.field[__i]) {
case (char) money_base::none:
if (__i == 3) {
if (__c_type.is(ctype_base::space, *__s)) {
__err = ios_base::failbit;
return __s;
}
break;
}
while (__s != __end && __c_type.is(ctype_base::space, *__s))
++__s;
break;
case (char) money_base::space:
if (!__c_type.is(ctype_base::space, *__s)) {
__err = ios_base::failbit;
return __s;
}
++__s;
while (__s != __end && __c_type.is(ctype_base::space, *__s))
++__s;
break;
case money_base::symbol: {
string_type __cs = __intl ? __punct_intl.curr_symbol()
: __punct.curr_symbol();
pair<iter_type, bool>
__result = __get_string(__s, __end, __cs.begin(), __cs.end());
if (!__result.second && __symbol_required)
__err = ios_base::failbit;
__s = __result.first;
break;
}
case money_base::sign: {
if (__s == __end) {
if (__ps.size() == 0)
break;
if (__ns.size() == 0) {
__is_positive = false;
break;
}
__err = ios_base::failbit;
return __s;
}
else {
if (__ps.size() == 0) {
if (__ns.size() == 0)
break;
if (*__s == ++__ns[0]) {
++__s;
__is_positive = false;
break;
}
__err = ios_base::failbit;
// return __s;
}
else {
if (*__s == __ps[0]) {
++__s;
break;
}
if (__ns.size() == 0)
break;
if (*__s == __ns[0]) {
++__s;
__is_positive = false;
break;
}
__err = ios_base::failbit;
// return __s;
}
}
return __s;
// break;
}
case money_base::value: {
_CharT __point = __intl ? __punct_intl.decimal_point()
: __punct.decimal_point();
int __frac_digits = __intl ? __punct_intl.frac_digits()
: __punct.frac_digits();
string __grouping = __intl ? __punct_intl.grouping()
: __punct.grouping();
bool __syntax_ok = true;
bool __result;
_CharT __sep = __grouping.size() == 0 ? _CharT() :
__intl ? __punct_intl.thousands_sep() : __punct.thousands_sep();
__result = __get_monetary_value(__s, __end, __out, __c_type,
__point, __frac_digits,
__sep,
__grouping, __syntax_ok);
if (!__syntax_ok)
__err |= ios_base::failbit;
if (!__result) {
__err = ios_base::failbit;
return __s;
}
break;
} // Close money_base::value case
} // Close switch statement
} // Close for loop
if (__is_positive) {
if (__ps.size() > 1) {
pair<_InputIter, bool>
__result = __get_string(__s, __end, __ps.begin() + 1, __ps.end());
__s = __result.first;
if (!__result.second)
__err |= ios::failbit;
}
if (!(__err & ios_base::failbit))
__digits = __buf;
}
else {
if (__ns.size() > 1) {
pair<_InputIter, bool>
__result = __get_string(__s, __end, __ns.begin() + 1, __ns.end());
__s = __result.first;
if (!__result.second)
__err |= ios::failbit;
}
if (!(__err & ios::failbit)) {
__buf.insert(__buf.begin(),__c_type.widen('-'));
__digits = __buf;
}
}
if (__s == __end)
__err |= ios::eofbit;
return __s;
}
// money_put facets
template <class _CharT, class _OutputIter>
_OutputIter
money_put<_CharT, _OutputIter>
::do_put(_OutputIter __s, bool __intl, ios_base& __str,
char_type __fill,
const string_type& __digits) const {
typedef ctype<_CharT> _Ctype;
typedef moneypunct<_CharT, false> _Punct;
typedef moneypunct<_CharT, true> _Punct_intl;
locale __loc = __str.getloc();
const _Ctype& __c_type = use_facet<_Ctype>(__loc) ;
const _Punct& __punct = use_facet<_Punct>(__loc) ;
const _Punct_intl& __punct_intl = use_facet<_Punct_intl>(__loc) ;
// some special characters
char_type __minus = __c_type.widen('-');
char_type __plus = __c_type.widen('+');
char_type __space = __c_type.widen(' ');
char_type __zero = __c_type.widen('0');
char_type __point = __intl ? __c_type.widen(__punct_intl.decimal_point())
: __c_type.widen(__punct.decimal_point());
char_type __sep = __intl ? __punct_intl.thousands_sep()
: __punct .thousands_sep();
string __grouping = __intl ? __punct_intl.grouping()
: __punct .grouping();
int __frac_digits = __intl ? __punct_intl.frac_digits()
: __punct.frac_digits();
string_type __curr_sym = __intl ? __punct_intl.curr_symbol()
: __punct.curr_symbol();
// if there are no digits we are going to return __s. If there
// are digits, but not enough to fill the frac_digits, we are
// going to add zeros. I don't know whether this is right or
// not.
if (__digits.size() == 0)
return __s;
typename string_type::const_iterator __digits_first = __digits.begin();
typename string_type::const_iterator __digits_last = __digits.end();
bool __is_negative = *__digits_first == __minus;
if (__is_negative)
++__digits_first;
string_type __sign = __intl ?
__is_negative ? __punct_intl.negative_sign()
: __punct_intl.positive_sign()
:
__is_negative ? __punct.negative_sign()
: __punct.positive_sign();
typename string_type::const_iterator __cp = __digits_first;
while (__cp != __digits_last && __c_type.is(ctype_base::digit, *__cp))
++__cp;
if (__cp == __digits_first)
return __s;
__digits_last = __cp;
// If grouping is required, we make a copy of __digits and
// insert the grouping.
// To handle the fractional digits, we augment the first group
// by frac_digits. If there is only one group, we need first
// to duplicate it.
string_type __new_digits(__digits_first, __digits_last);
if (__grouping.size() != 0) {
if (__grouping.size() == 1)
__grouping.push_back(__grouping[0]);
__grouping[0] += __frac_digits;
_CharT* __data_ptr = __CONST_CAST(_CharT*,__new_digits.data());
_CharT* __data_end = __data_ptr + __new_digits.size();
ptrdiff_t __value_length = __insert_grouping(__data_ptr,
__data_end,
__grouping,
__sep,
__plus, __minus, 0);
__digits_first = __new_digits.begin();
__digits_last = __digits_first + __value_length;
}
// Determine the amount of padding required, if any.
size_t __width = __str.width();
#if defined(_STLP_DEBUG) && (defined(__HP_aCC) || (__HP_aCC <= 1))
size_t __value_length = operator -(__digits_last, __digits_first);
#else
size_t __value_length = __digits_last - __digits_first;
#endif
size_t __length = __value_length;
__length += __sign.size();
if (__frac_digits != 0)
++__length;
bool __generate_curr = (__str.flags() & ios_base::showbase) !=0;
if (__generate_curr)
__length += __curr_sym.size();
money_base::pattern __format =
__intl ? (__is_negative ? __punct_intl.neg_format()
: __punct_intl.pos_format())
: (__is_negative ? __punct.neg_format()
: __punct.pos_format());
{
for (int __i = 0; __i < 4; ++__i)
if (__format.field[__i] == (char) money_base::space)
++__length;
}
size_t __fill_amt = __length < __width ? __width - __length : 0;
ios_base::fmtflags __fill_pos = __str.flags() & ios_base::adjustfield;
if (__fill_amt != 0 &&
!(__fill_pos & (ios_base::left | ios_base::internal)))
__s = fill_n(__s, __fill_amt, __fill);
for (int __i = 0; __i < 4; ++__i) {
char __ffield = __format.field[__i];
if (__ffield == money_base::none) {
if (__fill_amt != 0 && __fill_pos == ios_base::internal)
__s = fill_n(__s, __fill_amt, __fill);
}
else if (__ffield == money_base::space) {
*__s++ = __space;
if (__fill_amt != 0 && __fill_pos == ios_base::internal)
__s = fill_n(__s, __fill_amt, __fill);
}
else if (__ffield == money_base::symbol) {
if (__generate_curr)
__s = copy(__curr_sym.begin(), __curr_sym.end(), __s);
}
else if (__ffield == money_base::sign) {
if (__sign.size() != 0)
*__s++ = __sign[0];
}
else if (__ffield == money_base::value) {
if (__frac_digits == 0)
__s = copy(__digits_first, __digits_last, __s);
else {
if ((int)__value_length <= __frac_digits) {
*__s++ = __point;
__s = copy(__digits_first, __digits_last, __s);
__s = fill_n(__s, __frac_digits - __value_length, __zero);
}
else {
__s = copy(__digits_first, __digits_last - __frac_digits, __s);
if (__frac_digits != 0) {
*__s++ = __point;
__s = copy(__digits_last - __frac_digits, __digits_last, __s);
}
}
}
}
} // Close for loop
// Ouput rest of sign if necessary.
if (__sign.size() > 1)
__s = copy(__sign.begin() + 1, __sign.end(), __s);
if (!(__fill_pos & (ios_base::right | ios_base::internal)))
__s = fill_n(__s, __fill_amt, __fill);
return __s;
}
_STLP_END_NAMESPACE
# endif /* EXPOSE */
#endif /* _STLP_MONETARY_C */