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Aggiunta la possibilita' di trattare le date in formato ANSI (YYYYMMDD).

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git-svn-id: svn://10.65.10.50/trunk@45 c028cbd2-c16b-5b4b-a496-9718f37d4682
This commit is contained in:
alex 1994-08-22 11:15:31 +00:00
parent 22611ac7b5
commit 441344d49c
1 changed files with 302 additions and 276 deletions
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280
include/date.cpp
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@ -9,268 +9,294 @@
#include <strings.h> #include <strings.h>
#include <utility.h> #include <utility.h>
#define DAYBIAS 36525L #define DAYBIAS 36525L
#define NULLDATE -99999L #define NULLDATE -99999L
TDate nodate, botime, eotime(31,12,2050); TDate nodate, botime, eotime(31,12,2050);
HIDDEN TDate __tmp_date; HIDDEN TDate __tmp_date;
HIDDEN char __date_tmp_string[20];
TDate::TDate(const TDate &d) : _val(d._val) {} TDate::TDate(const TDate &d) : _val(d._val) {}
TDate::TDate(long l) : _val(l) TDate::TDate(long l) : _val(l)
{ {
if (_val == TODAY) if (_val == TODAY)
{ {
char s[10]; char s[10];
cgetdata(&_val, s); cgetdata(&_val, s);
} }
} }
TDate::TDate(const char* s) TDate::TDate(const char* s)
{ {
_val = NULLDATE; _val = NULLDATE;
if (!isdate(s)) return; if (!isdate(s)) return;
if (strlen(s) == 10) if (strlen(s) == 10)
{ {
int day = atoi(s), int day = atoi(s), month = atoi(&s[3]), year = atoi(&s[6]);
month = atoi(&s[3]), long off = 0L;
year = atoi(&s[6]);
long off = 0L;
if (year > 1000) if (year > 1000)
{ {
if (year < 1951) off -= DAYBIAS; if (year < 1951) off -= DAYBIAS;
if (year < 1851) off -= DAYBIAS; if (year < 1851) off -= DAYBIAS;
if (year < 1751) off -= DAYBIAS; if (year < 1751) off -= DAYBIAS;
year %= 100; // modify year %= 100; // modify
} }
_val = makedata(day, month, year) + off; _val = makedata(day, month, year) + off;
} }
else _val = cpackdata((char*)s); else
if (strchr(s, '-') == NULL)
{
strcpy(__date_tmp_string, s);
int day = atoi(__date_tmp_string + 6); __date_tmp_string[6] = '\0';
int month = atoi(__date_tmp_string + 4); __date_tmp_string[4] = '\0';
int year = atoi(__date_tmp_string);
long off = 0L;
if (year > 1000)
{
if (year < 1951) off -= DAYBIAS;
if (year < 1851) off -= DAYBIAS;
if (year < 1751) off -= DAYBIAS;
year %= 100; // modify
}
_val = makedata(day, month, year) + off;
}
else _val = cpackdata((char*)s);
} }
TDate::TDate(int day, int month, int year) TDate::TDate(int day, int month, int year)
{ {
if (day == TODAY) if (day == TODAY)
{ {
char s[10]; char s[10];
cgetdata(&_val, s); cgetdata(&_val, s);
} }
else else
if ((day == 0) || (month == 0) || (year == 0)) _val = NULLDATE; if ((day == 0) || (month == 0) || (year == 0)) _val = NULLDATE;
else else
{ {
long off = 0L; long off = 0L;
if (year > 1000) if (year > 1000)
{ {
if (year < 1951) off -= DAYBIAS; if (year < 1951) off -= DAYBIAS;
if (year < 1851) off -= DAYBIAS; if (year < 1851) off -= DAYBIAS;
if (year < 1751) off -= DAYBIAS; if (year < 1751) off -= DAYBIAS;
year %= 100; // modify year %= 100; // modify
} }
_val = makedata(day, month, year) + off; _val = makedata(day, month, year) + off;
if (!ok()) _val = NULLDATE; if (!ok()) _val = NULLDATE;
} }
} }
TDate::operator const char*() const TDate::operator const char*() const
{ {
return string(4); return string(4);
} }
TDate& TDate::operator =(const char* s) TDate& TDate::operator =(const char* s)
{ {
return *this = TDate(s); return *this = TDate(s);
} }
void TDate::print_on(ostream& out) const void TDate::print_on(ostream& out) const
{ out << string(); } {
out << string();
}
void TDate::read_from(istream& in) void TDate::read_from(istream& in)
{ {
in >> __tmp_string; char s[256];
if (isdate(__tmp_string)) _val = cpackdata(__tmp_string);
else _val = NULLDATE; in >> s;
if (isdate(s)) _val = cpackdata(s);
else _val = NULLDATE;
} }
char* TDate::string(int yeardgts, char sep) const char* TDate::string(int yeardgts, char sep) const
{ {
if (!ok()) return ""; if (!ok()) return "";
long wv = _val; long wv = _val;
// int cnt = int(wv / DAYBIAS - (wv < 0 ? 1 : 0)); int cnt = wv >= DAYBIAS ? 2000 : 1900;
int cnt = wv >= DAYBIAS ? 2000 : 1900;
// int cnt = 0;
// bool over2000 = wv >= DAYBIAS;
while (wv < 0) while (wv < 0)
{ {
cnt -= 100; cnt -= 100;
wv += DAYBIAS; wv += DAYBIAS;
} }
ceditdata(wv, __tmp_string); ceditdata(wv, __date_tmp_string);
if (strcmp(__tmp_string, " - - ") == 0) return ""; if (strcmp(__date_tmp_string, " - - ") == 0) return "";
if (sep != '-') if (sep != '-')
for (char* s = __tmp_string; *s; s++) for (char* s = __date_tmp_string; *s; s++)
if (*s == '-') *s = sep; if (*s == '-') *s = sep;
if (yeardgts > 2) if (yeardgts > 2)
{ {
char s[8]; char s[8];
// int year = ::year(wv) - cnt * 100; int year = cnt + atoi(__date_tmp_string + 6);
// if (year > 2000 && !over2000) year -= 100;
// int year = 1900 + cnt * 100 + atoi(__tmp_string + 6);
int year = cnt + atoi(__tmp_string + 6);
if (yeardgts == 3) sprintf(s, "%03d", year % 1000); if (yeardgts == 3) sprintf(s, "%03d", year % 1000);
else sprintf(s, "%04d", year); else sprintf(s, "%04d", year);
__tmp_string[6] = '\0'; __date_tmp_string[6] = '\0';
strcat(__tmp_string, s); strcat(__date_tmp_string, s);
} }
return __tmp_string; else
if (yeardgts == ANSI)
{
char* s = __date_tmp_string; s[2] = '\0'; s[5] = '\0';
const int day = atoi(s);
const int month = atoi(s + 3);
const int year = atoi(s + 6);
sprintf(__date_tmp_string, "%04d%02d%02d", year, month, day);
}
return __date_tmp_string;
} }
int TDate::day() const int TDate::day() const
{ {
return ::day(_val); return ::day(_val);
} }
int TDate::month() const int TDate::month() const
{ {
return ::month(_val); return ::month(_val);
} }
int TDate::year() const int TDate::year() const
{ {
return ::year(_val); return ::year(_val);
} }
void TDate::addmonth(int nmonth) void TDate::addmonth(int nmonth)
{ {
_val = ::addmonth(_val, nmonth); _val = ::addmonth(_val, nmonth);
} }
void TDate::addyear(int nyear) void TDate::addyear(int nyear)
{ {
_val = ::addyear(_val, nyear); _val = ::addyear(_val, nyear);
} }
bool TDate::isdate(const char* s) bool TDate::isdate(const char* s)
{ {
if (!*s) return FALSE; if (!*s) return FALSE;
if (strlen(s) == 10) if (strlen(s) == 10)
{ {
int day = atoi(s), int day = atoi(s),
month = atoi(&s[3]), month = atoi(&s[3]),
year = atoi(&s[6]); year = atoi(&s[6]);
if (day < 1 || day > 31 || if (day < 1 || day > 31 ||
month < 1 || month > 12 || month < 1 || month > 12 ||
year < 1700 || year > 2100) year < 1700 || year > 2100)
return FALSE; return FALSE;
char s1[16]; char s1[16];
sprintf(s1, "%02d-%02d-%02d", day, month, year%100); sprintf(s1, "%02d-%02d-%02d", day, month, year%100);
return (bool)cverdata(s1); return (bool)cverdata(s1);
} }
return (bool)cverdata((char*)s); return (bool)cverdata((char*)s);
} }
bool TDate::ok() const bool TDate::ok() const
{ {
return _val <= 2 * DAYBIAS && _val >= -2 * DAYBIAS; return _val <= 2 * DAYBIAS && _val >= -2 * DAYBIAS;
} }
TDate& operator +(const TDate& a, long nday) TDate& operator +(const TDate& a, long nday)
{ {
__tmp_date = long(a) + nday; __tmp_date = long(a) + nday;
return __tmp_date; return __tmp_date;
} }
TDate& operator +(const long nday, const TDate& b) TDate& operator +(const long nday, const TDate& b)
{ {
__tmp_date = long(b) + nday; __tmp_date = long(b) + nday;
return __tmp_date; return __tmp_date;
} }
TDate& operator -(const TDate& a, long nday) TDate& operator -(const TDate& a, long nday)
{ {
__tmp_date = long(a)- nday; __tmp_date = long(a)- nday;
return __tmp_date; return __tmp_date;
} }
void swap(TDate& a, TDate& b) void swap(TDate& a, TDate& b)
{ {
__tmp_date = b; __tmp_date = b;
b = a; b = a;
a = __tmp_date; a = __tmp_date;
} }
const TDate& fnc_min(const TDate& a, const TDate& b) const TDate& fnc_min(const TDate& a, const TDate& b)
{ {
if (a < b) return a; if (a < b) return a;
else return b; else return b;
} }
const TDate& fnc_max(const TDate& a, const TDate& b) const TDate& fnc_max(const TDate& a, const TDate& b)
{ {
if (a > b) return a; if (a > b) return a;
else return b; else return b;
} }
// Converte un numero da 1 a 12 nel corrispondente mese // Converte un numero da 1 a 12 nel corrispondente mese
const char* itom(byte m) const char* itom(byte m)
{ {
const char* nomi[12] = const char* nomi[12] =
{ {
"Gennaio", "Febbraio", "Marzo", "Aprile", "Maggio", "Giugno", "Gennaio", "Febbraio", "Marzo", "Aprile", "Maggio", "Giugno",
"Luglio", "Agosto", "Settembre", "Ottobre", "Novembre", "Dicembre" "Luglio", "Agosto", "Settembre", "Ottobre", "Novembre", "Dicembre"
}; };
return nomi[(m-1) % 12]; return nomi[(m-1) % 12];
} }
const char* itow(byte d) const char* itow(byte d)
{ {
const char* nomi[7] = const char* nomi[7] =
{ "Lunedi", "Martedi", "Mercoledi", "Giovedi", "Venerdi", { "Lunedi", "Martedi", "Mercoledi", "Giovedi", "Venerdi",
"Sabato", "Domenica" }; "Sabato", "Domenica" };
return nomi[(d-1) % 7]; return nomi[(d-1) % 7];
} }