--- parser3/src/classes/date.C 2002/04/16 08:59:25 1.26 +++ parser3/src/classes/date.C 2003/04/09 11:18:33 1.44 @@ -1,22 +1,18 @@ /** @file Parser: @b date parser class. - Copyright (c) 2001, 2002 ArtLebedev Group (http://www.artlebedev.com) + Copyright (c) 2001, 2003 ArtLebedev Group (http://www.artlebedev.com) Author: Alexandr Petrosian (http://paf.design.ru) - - $Id: date.C,v 1.26 2002/04/16 08:59:25 paf Exp $ */ +static const char* IDENT_DATE_C="$Date: 2003/04/09 11:18:33 $"; + #include "classes.h" #include "pa_request.h" #include "pa_vdouble.h" #include "pa_vdate.h" #include "pa_vtable.h" -// defines - -#define DATE_CLASS_NAME "date" - // class class MDate : public Methoded { @@ -33,35 +29,90 @@ public: // Methoded static void _now(Request& r, const String& method_name, MethodParams *params) { Pool& pool=r.pool(); - VDate *vdate=static_cast(r.self); + VDate *vdate=static_cast(r.get_self()); time_t t=time(0); if(params->size()==1) // ^now(offset) - t+=(time_t)(params->as_double(0, "offset must be double", r)*SECS_PER_DAY); + t+=(time_t)round(params->as_double(0, "offset must be double", r)*SECS_PER_DAY); vdate->set_time(t); } +static int NN_year_to_NNNN(int year) { + if(year<70) // 0..69 -> 100..169 [2000..2069] + year+=100; + if(year>=1900) + year-=1900; + return year; +} + +// 2002-04-25 18:14:00 +// 18:14:00 +// 2002:04:25 [+maybe time] +time_t cstr_to_time_t(char *cstr, const String *report_error_origin) { // used in image.C + char *cur=cstr; + int date_delim=isdigit(cur[0])&&isdigit(cur[1])&&isdigit(cur[2])&&isdigit(cur[3])&&cur[4]==':'?':' + :'-'; + const char *year=lsplit(&cur, date_delim); + const char *month=lsplit(&cur, date_delim); + const char *mday=lsplit(&cur, ' '); + if(!month) + cur=cstr; + const char *hour=lsplit(&cur, ':'); + const char *min=lsplit(&cur, ':'); + const char *sec=cur; + + tm tmIn={0}; + tmIn.tm_isdst=-1; + if(!month) + if(min) { + year=mday=0; // HH:MM + time_t t=time(0); + tm *tmNow=localtime(&t); + tmIn.tm_year=tmNow->tm_year; + tmIn.tm_mon=tmNow->tm_mon; + tmIn.tm_mday=tmNow->tm_mday; + goto date_part_set; + } else + hour=min=sec=0; // not YYYY- & not HH: = just YYYY + tmIn.tm_year=NN_year_to_NNNN(atoi(year)); + tmIn.tm_mon=month?atoi(month)-1:0; + tmIn.tm_mday=mday?atoi(mday):1; +date_part_set: + tmIn.tm_hour=hour?atoi(hour):0; + tmIn.tm_min=min?atoi(min):0; + tmIn.tm_sec=sec?atoi(sec):0; + time_t result=mktime(&tmIn); + if(result<0) + if(report_error_origin) + throw Exception(0, + report_error_origin, + "invalid datetime"); + + return result; +} + static void _create(Request& r, const String& method_name, MethodParams *params) { Pool& pool=r.pool(); - VDate *vdate=static_cast(r.self); + VDate *vdate=static_cast(r.get_self()); time_t t; - if(params->size()==1) { // ^set(float days) - t=(time_t)(params->as_double(0, "float days must be double", r)*SECS_PER_DAY); - if(t<0 || !localtime(&t)) - throw Exception(0, - &method_name, - "invalid datetime"); - } else if(params->size()>=2) { // ^set(y;m;d[;h[;m[;s]]]) + if(params->size()==1) { + // ^create[2002-04-25 18:14:00] + // ^create[18:14:00] + if(const String *sdate=params->get(0).get_string()) + t=cstr_to_time_t(sdate->cstr(), sdate); + else { // ^create(float days) + t=(time_t)round(params->as_double(0, "float days must be double", r)*SECS_PER_DAY); + if(t<0 || !localtime(&t)) + throw Exception(0, + &method_name, + "invalid datetime"); + } + } else if(params->size()>=2) { // ^create(y;m;d[;h[;m[;s]]]) tm tmIn={0}; tmIn.tm_isdst=-1; - int year=params->as_int(0, "year must be int", r); - if(year<70) // 0..69 -> 100..169 [2000..2069] - year+=100; - if(year>=1900) - year-=1900; - tmIn.tm_year=year; + tmIn.tm_year=NN_year_to_NNNN(params->as_int(0, "year must be int", r)); tmIn.tm_mon=params->as_int(1, "month must be int", r)-1; tmIn.tm_mday=params->size()>2?params->as_int(2, "mday must be int", r):1; if(params->size()>3) tmIn.tm_hour=params->as_int(3, "hour must be int", r); @@ -81,7 +132,7 @@ static void _create(Request& r, const St static void _sql_string(Request& r, const String& method_name, MethodParams *) { Pool& pool=r.pool(); - VDate *vdate=static_cast(r.self); + VDate *vdate=static_cast(r.get_self()); int size=1+ 4+1+2+1+2 +1+ 2+1+2+1+2 +1 +1; char *buf=(char *)pool.malloc(size); time_t time=vdate->get_time(); @@ -97,12 +148,12 @@ static void _sql_string(Request& r, cons static void _roll(Request& r, const String& method_name, MethodParams *params) { Pool& pool=r.pool(); - VDate *vdate=static_cast(r.self); + VDate *vdate=static_cast(r.get_self()); const String& what=params->as_string(0, "'what' must be string"); - int oyear=0; - int omonth=0; - int oday=0; + int oyear=0; + int omonth=0; + int oday=0; int *offset; if(what=="year") offset=&oyear; else if(what=="month") offset=&omonth; @@ -117,83 +168,131 @@ static void _roll(Request& r, const Stri time_t self_time=vdate->get_time(); tm tmIn=*localtime(&self_time); tm tmSaved=tmIn; + int adjust_day=0; + time_t t_changed_date; + while(true) { + tmIn.tm_year+=oyear; + tmIn.tm_mon+=omonth; + tmIn.tm_mday+=oday+adjust_day; + tmIn.tm_hour=24/2; + tmIn.tm_min=0; + tmIn.tm_sec=0; + int saved_mon=(tmIn.tm_mon+12*100)%12; // crossing year boundary backwards + t_changed_date=mktime/*normalizetime*/(&tmIn); + if(t_changed_date<0) + throw Exception(0, + &method_name, + "bad resulting time (rolled out of valid date range)"); + if(oday==0 && tmIn.tm_mon!=saved_mon) { + if(adjust_day <= -3/*31->28 max, so never, but...*/) + throw Exception(0, + &method_name, + "bad resulting time (day hole still with %d day adjustment)", adjust_day ); + + tmIn=tmSaved; // restoring + --adjust_day; //retrying with prev day + } else + break; + } - tmIn.tm_year+=oyear; - tmIn.tm_mon+=omonth; - tmIn.tm_mday+=oday; - tmIn.tm_hour=24/2; - tmIn.tm_min=0; - tmIn.tm_sec=0; - time_t t=mktime/*normalizetime*/(&tmIn); - if(t<0) - throw Exception(0, - &method_name, - "bad resulting time (after roll)"); - if(oday==0 && tmIn.tm_mday!=tmSaved.tm_mday) - throw Exception(0, - &method_name, - "bad resulting time (day hole)", t); - - tm *tmOut=localtime(&t); + tm *tmOut=localtime(&t_changed_date); if(!tmOut) throw Exception(0, &method_name, - "bad resulting time (seconds from epoch=%ld)", t); + "bad resulting time (seconds from epoch=%d)", t_changed_date); - tmOut->tm_hour=tmSaved.tm_hour; - tmOut->tm_min=tmSaved.tm_min; - tmOut->tm_sec=tmSaved.tm_sec; + tmOut->tm_hour=tmSaved.tm_hour; + tmOut->tm_min=tmSaved.tm_min; + tmOut->tm_sec=tmSaved.tm_sec; tmOut->tm_isdst=-1; { - time_t t=mktime/*normalizetime*/(tmOut); + time_t t_changed_time=mktime/*normalizetime*/(tmOut); + /*autofix: in msk timezone last sunday of april hour hole: [2am->3am) if( tmOut->tm_hour!=tmSaved.tm_hour ||tmOut->tm_min!=tmSaved.tm_min) throw Exception(0, &method_name, "bad resulting time (hour hole)"); + */ - if(t<0) + if(t_changed_time<0) throw Exception(0, &method_name, "bad resulting time (after reconstruction)"); - vdate->set_time(t); + vdate->set_time(t_changed_time); } } static Table *fill_month_days(Request& r, const String& method_name, MethodParams *params, bool rus){ Pool& pool=r.pool(); - Table *result=new(pool) Table(pool, &method_name, 0/*&columns*/); - - int year=params->as_int(1, "year must be int", r); - int month=max(1, min(params->as_int(2, "month must be int", r), 12)) -1; + Table *result=new(pool) Table(pool, *date_calendar_table_template); - tm tmIn={0, 0, 0, 1, month, year-1900}; - time_t t=mktime(&tmIn); + int year=params->as_int(1, "year must be int", r); + int month=max(1, min(params->as_int(2, "month must be int", r), 12)) -1; + + tm tmIn={0, 0, 0, 1, month, year-1900}; + time_t t=mktime(&tmIn); if(t<0) throw Exception(0, &method_name, "invalid date"); - tm *tmOut=localtime(&t); - - int weekDay1=tmOut->tm_wday; + tm *tmOut=localtime(&t); + + int weekDay1=tmOut->tm_wday; if(rus) weekDay1=weekDay1?weekDay1-1:6; //sunday last - int monthDays=getMonthDays(year, month); - - for(int _day=1-weekDay1; _day<=monthDays;) { + int monthDays=getMonthDays(year, month); + + for(int _day=1-weekDay1; _day<=monthDays;) { Array& row=*new(pool) Array(pool, 7); - for(int wday=0; wday<7; wday++, _day++) { - String *cell=new(pool) String(pool); + // calculating year week no [1..54] + char *weekno_buf; + size_t weekno_size; + int weekyear; + // 0..6 week days-cells fill with month days + for(int wday=0; wday<7; wday++, _day++) { + String *cell=new(pool) String(pool); if(_day>=1 && _day<=monthDays) { char *buf=(char *)pool.malloc(2+1); cell->APPEND_CLEAN(buf, sprintf(buf, "%02d", _day), method_name.origin().file, method_name.origin().line); } row+=cell; + + if(wday==(rus?3:4)/*thursday*/) { + tm tms={0,0,0, _day, month, year-1900}; + /*normalize*/mktime(&tms); + + weekyear=tms.tm_year+1900; + + const int weekno_buf_size=2+1/*for stupid snprintfs*/ +1; + + // http://www.merlyn.demon.co.uk/weekinfo.htm + const int FirstThurs[] = {7,5,4,3,2,7,6,5,4,2,1,7,6,4,3,2,1,6,5,4,3,1,7,6,5,3,2,1}; + int n=1 + (tms.tm_yday-(FirstThurs[weekyear % 28]-3))/7; + weekno_buf=(char *)pool.malloc(weekno_buf_size); + weekno_size=snprintf(weekno_buf, weekno_buf_size, "%02d", n); + } + } + // appending year week no + { + String *cell=new(pool) String(pool); + cell->APPEND_CLEAN(weekno_buf, weekno_size, + method_name.origin().file, method_name.origin().line); + row+=cell; + } + // appending year week year + { + String *cell=new(pool) String(pool); + char *buf=(char *)pool.malloc(4+1); + cell->APPEND_CLEAN(buf, sprintf(buf, "%02d", weekyear), + method_name.origin().file, method_name.origin().line); + row+=cell; + } *result+=&row; } @@ -270,21 +369,18 @@ static void _calendar(Request& r, const table=fill_week_days(r, method_name, params, rus); VTable& result=*new(pool) VTable(pool, table); - result.set_name(method_name); r.write_no_lang(result); } // constructor -MDate::MDate(Pool& apool) : Methoded(apool) { - set_name(*NEW String(pool(), DATE_CLASS_NAME)); - - +MDate::MDate(Pool& apool) : Methoded(apool, "date") { // ^now[] add_native_method("now", Method::CT_DYNAMIC, _now, 0, 1); - // ^set(float days) + // ^create(float days) add_native_method("create", Method::CT_DYNAMIC, _create, 1, 6); + // old name for compatibility with <= v1.17 2002/2/18 12:13:42 paf add_native_method("set", Method::CT_DYNAMIC, _create, 1, 6); // ^sql-string[]