📄 time_format_functions.h
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ws_char_a_t seconds_[] = "00.000";
ws_char_a_t const *hours = stlsoft_ns_qual(integer_to_string)(&hours_[0], STLSOFT_NUM_ELEMENTS(hours_), lpTime->wHour);
ws_char_a_t const *minutes = stlsoft_ns_qual(integer_to_string)(&minutes_[0], STLSOFT_NUM_ELEMENTS(minutes_), lpTime->wMinute);
stlsoft_ns_qual(integer_to_string)(&seconds_[3], 4, lpTime->wMilliseconds);
ws_char_a_t const *seconds = stlsoft_ns_qual(integer_to_string)(&seconds_[0], 3, lpTime->wSecond);
seconds_[2] = '.';
// Get the time markers
HKEY hkey;
LONG res = ::RegOpenKey(HKEY_CURRENT_USER, "Control Panel\\International", &hkey);
buffer_t am(0);
buffer_t pm(0);
if(ERROR_SUCCESS == res)
{
size_t cchAM = 0;
size_t cchPM = 0;
LONG r;
if( ERROR_SUCCESS != (r = reg_get_string_value(hkey, "s1159", static_cast<ws_char_a_t*>(NULL), cchAM)) ||
ERROR_SUCCESS != (r = (am.resize(cchAM), cchAM = am.size(), reg_get_string_value(hkey, "s1159", &am[0], cchAM))))
{
res = r;
}
else if(ERROR_SUCCESS != (r = reg_get_string_value(hkey, "s2359", static_cast<ws_char_a_t*>(NULL), cchPM)) ||
ERROR_SUCCESS != (r = (pm.resize(cchPM), cchPM = pm.size(), reg_get_string_value(hkey, "s2359", &pm[0], cchPM))))
{
res = r;
}
::RegCloseKey(hkey);
}
if(ERROR_SUCCESS != res)
{
am.resize(3);
pm.resize(3);
::lstrcpyA(&am[0], "AM");
::lstrcpyA(&pm[0], "PM");
}
ws_char_a_t const *timeMarker = (lpTime->wHour < 12) ? &am[0] : &pm[0];
const size_t cchMarker = (am.size() < pm.size()) ? pm.size() : am.size();
const size_t cchTimeMax = (cchPicture - 1) + (2 - 1) + (2 - 1) + (6 - 1) + 1 + cchMarker;
buffer_t buffer(1 + cchTimeMax);
size_t len = 0;
if(!buffer.empty())
{
ws_char_a_t const *r;
ws_char_a_t *w = &buffer[0];
ws_char_a_t prev = '\0';
ws_bool_t bMarker1 = true;
for(r = lpFormat; r != lpFormat + cchPicture; ++r)
{
const ws_char_a_t ch = *r;
switch(ch)
{
case 'h':
if( 'h' == prev &&
hours != &hours_[0])
{
--hours;
}
break;
case 'm':
if( 'm' == prev &&
minutes != &minutes_[0])
{
--minutes;
}
break;
case 's':
if( 's' == prev &&
seconds != &seconds_[0])
{
--seconds;
}
break;
case 't':
if('t' == prev)
{
bMarker1 = false;
}
break;
default:
{
ws_char_a_t const *p;
switch(prev)
{
case 'h': p = hours; break;
case 'm': p = minutes; break;
case 's': p = seconds; break;
case 't':
if(0 == (dwFlags & TIME_NOTIMEMARKER))
{
if(!bMarker1)
{
p = timeMarker;
break;
}
else
{
// Fall through
*w++ = *timeMarker;
++len;
}
}
// Fall through
default: p = ""; break;
}
for(; '\0' != *p; *w++ = *p++, ++len)
{}
}
*w++ = ch;
++len;
break;
}
if('\0' == ch)
{
break;
}
prev = ch;
}
}
// If 0 was specified, or
if( 0 == cchTime ||
len <= size_t(cchTime))
{
if(0 != cchTime)
{
::lstrcpyA(lpTimeStr, &buffer[0]);
}
return static_cast<int>(len);
}
else
{
return 0;
}
}
inline int STLSOFT_STDCALL GetTimeFormat_msW_( LCID locale // locale
, DWORD dwFlags // options
, CONST SYSTEMTIME *lpTime // time
, ws_char_w_t const *lpFormat // time format string
, ws_char_w_t *lpTimeStr // formatted string buffer
, const int cchTime) // size of string buffer
{
typedef stlsoft_ns_qual(auto_buffer_old)< ws_char_w_t
, processheap_allocator<ws_char_w_t>
> buffer_t;
if(dwFlags & (TIME_NOMINUTESORSECONDS | TIME_NOSECONDS))
{
return ::GetTimeFormatW(locale, dwFlags, lpTime, lpFormat, lpTimeStr, cchTime);
}
if(dwFlags & LOCALE_NOUSEROVERRIDE)
{
locale = LOCALE_SYSTEM_DEFAULT;
}
buffer_t timePicture(1 + (NULL == lpFormat ? static_cast<ss_size_t>(::GetLocaleInfoW(locale, LOCALE_STIMEFORMAT, NULL, 0)) : 0));
ss_size_t cchPicture;
if(NULL == lpFormat)
{
::GetLocaleInfoW(LOCALE_USER_DEFAULT, LOCALE_STIMEFORMAT, &timePicture[0], static_cast<int>(timePicture.size()));
lpFormat = &timePicture[0];
cchPicture = timePicture.size() - 1;
}
else
{
cchPicture = static_cast<ss_size_t>(::lstrlenW(lpFormat));
}
ws_char_w_t hours_[] = L"00";
ws_char_w_t minutes_[] = L"00";
ws_char_w_t seconds_[] = L"00.000";
ws_char_w_t const *hours = stlsoft_ns_qual(integer_to_string)(&hours_[0], STLSOFT_NUM_ELEMENTS(hours_), lpTime->wHour);
ws_char_w_t const *minutes = stlsoft_ns_qual(integer_to_string)(&minutes_[0], STLSOFT_NUM_ELEMENTS(minutes_), lpTime->wMinute);
stlsoft_ns_qual(integer_to_string)(&seconds_[3], 4, lpTime->wMilliseconds);
ws_char_w_t const *seconds = stlsoft_ns_qual(integer_to_string)(&seconds_[0], 3, lpTime->wSecond);
seconds_[2] = '.';
// Get the time markers
HKEY hkey;
LONG res = ::RegOpenKey(HKEY_CURRENT_USER, "Control Panel\\International", &hkey);
buffer_t am(0);
buffer_t pm(0);
if(ERROR_SUCCESS == res)
{
size_t cchAM;
size_t cchPM;
LONG r;
if( ERROR_SUCCESS != (r = reg_get_string_value(hkey, L"s1159", static_cast<ws_char_w_t*>(NULL), cchAM)) ||
ERROR_SUCCESS != (r = (am.resize(cchAM), cchAM = am.size(), reg_get_string_value(hkey, L"s1159", &am[0], cchAM))))
{
res = r;
}
else if(ERROR_SUCCESS != (r = reg_get_string_value(hkey, L"s2359", static_cast<ws_char_w_t*>(NULL), cchPM)) ||
ERROR_SUCCESS != (r = (pm.resize(cchPM), cchPM = pm.size(), reg_get_string_value(hkey, L"s2359", &pm[0], cchPM))))
{
res = r;
}
::RegCloseKey(hkey);
}
if(ERROR_SUCCESS != res)
{
am.resize(3);
pm.resize(3);
::lstrcpyW(&am[0], L"AM");
::lstrcpyW(&pm[0], L"PM");
}
ws_char_w_t const *timeMarker = (lpTime->wHour < 12) ? &am[0] : &pm[0];
const size_t cchMarker = (am.size() < pm.size()) ? pm.size() : am.size();
const size_t cchTimeMax = (cchPicture - 1) + (2 - 1) + (2 - 1) + (6 - 1) + 1 + cchMarker;
buffer_t buffer(1 + cchTimeMax);
if(!buffer.empty())
{
ws_char_w_t const *r;
ws_char_w_t *w = &buffer[0];
ws_char_w_t prev = '\0';
ws_bool_t bMarker1 = true;
for(r = lpFormat; r != lpFormat + cchPicture; ++r)
{
const ws_char_w_t ch = *r;
switch(ch)
{
case 'h':
if( 'h' == prev &&
hours != &hours_[0])
{
--hours;
}
break;
case 'm':
if( 'm' == prev &&
minutes != &minutes_[0])
{
--minutes;
}
break;
case 's':
if( 's' == prev &&
seconds != &seconds_[0])
{
--seconds;
}
break;
case 't':
if('t' == prev)
{
bMarker1 = false;
}
break;
default:
{
ws_char_w_t const *p;
switch(prev)
{
case 'h': p = hours; break;
case 'm': p = minutes; break;
case 's': p = seconds; break;
case 't':
if(0 == (dwFlags & TIME_NOTIMEMARKER))
{
if(!bMarker1)
{
p = timeMarker;
break;
}
else
{
// Fall through
*w++ = *timeMarker;
}
}
// Fall through
default: p = L""; break;
}
for(; '\0' != *p; *w++ = *p++)
{}
}
*w++ = ch;
break;
}
if('\0' == ch)
{
break;
}
prev = ch;
}
}
const size_t len = static_cast<ss_size_t>(::lstrlenW(&buffer[0]));
if( 0 == cchTime ||
size_t(cchTime) <= len + 1)
{
if(0 != cchTime)
{
::lstrcpyW(lpTimeStr, &buffer[0]);
}
return static_cast<int>(len + 1);
}
else
{
return 0;
}
}
#endif /* 0 */
inline int STLSOFT_STDCALL GetTimeFormat_msA( LCID locale // locale
, DWORD dwFlags // options
, CONST SYSTEMTIME *lpTime // time
, ws_char_a_t const *lpFormat // time format string
, ws_char_a_t *lpTimeStr // formatted string buffer
, int cchTime) // size of string buffer
{
#if 0
return GetTimeFormat_msA_(locale, dwFlags, lpTime, lpFormat, lpTimeStr, cchTime);
#else /* ? 0 */
return GetTimeFormat_ms_<ws_char_a_t>(locale, dwFlags, lpTime, lpFormat, lpTimeStr, cchTime);
#endif /* 0 */
}
inline int STLSOFT_STDCALL GetTimeFormat_msW( LCID locale // locale
, DWORD dwFlags // options
, CONST SYSTEMTIME *lpTime // time
, ws_char_w_t const *lpFormat // time format string
, ws_char_w_t *lpTimeStr // formatted string buffer
, int cchTime) // size of string buffer
{
#if 0
return GetTimeFormat_msW_(locale, dwFlags, lpTime, lpFormat, lpTimeStr, cchTime);
#else /* ? 0 */
return GetTimeFormat_ms_<ws_char_w_t>(locale, dwFlags, lpTime, lpFormat, lpTimeStr, cchTime);
#endif /* 0 */
}
////////////////////////////////////////////////////////////////////////////
// Unit-testing
#ifdef STLSOFT_UNITTEST
# include "./unittest/time_format_functions_unittest_.h"
#endif /* STLSOFT_UNITTEST */
/* ////////////////////////////////////////////////////////////////////// */
#ifndef _WINSTL_NO_NAMESPACE
# if defined(_STLSOFT_NO_NAMESPACE) || \
defined(STLSOFT_DOCUMENTATION_SKIP_SECTION)
} /* namespace winstl */
# else
} /* namespace winstl_project */
} /* namespace stlsoft */
# endif /* _STLSOFT_NO_NAMESPACE */
#endif /* !_WINSTL_NO_NAMESPACE */
/* ////////////////////////////////////////////////////////////////////// */
#endif /* !WINSTL_INCL_WINSTL_H_TIME_FORMAT_FUNCTIONS */
/* ////////////////////////////////////////////////////////////////////// */
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