--- parser3/src/classes/date.C 2001/07/09 16:13:17 1.3 +++ parser3/src/classes/date.C 2009/05/15 06:59:33 1.85 @@ -1,150 +1,453 @@ /** @file Parser: @b date parser class. - Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com) - - Author: Alexander Petrosyan (http://design.ru/paf) - - $Id: date.C,v 1.3 2001/07/09 16:13:17 parser Exp $ + Copyright (c) 2001-2009 ArtLebedev Group (http://www.artlebedev.com) + Author: Alexandr Petrosian (http://paf.design.ru) */ -static const char *RCSId="$Id: date.C,v 1.3 2001/07/09 16:13:17 parser Exp $"; + +static const char * const IDENT_DATE_C="$Date: 2009/05/15 06:59:33 $"; #include "classes.h" +#include "pa_vmethod_frame.h" + #include "pa_request.h" #include "pa_vdouble.h" #include "pa_vdate.h" - -// defines - -#define DATE_CLASS_NAME "date" +#include "pa_vtable.h" // class -class MDate : public Methoded { +class MDate: public Methoded { public: // VStateless_class - Value *create_new_value(Pool& pool) { return new(pool) VDate(pool, 0); } + Value* create_new_value(Pool&, HashStringValue&) { return new VDate(0); } public: - MDate(Pool& pool); + MDate(); public: // Methoded bool used_directly() { return true; } }; +// global variable + +DECLARE_CLASS_VAR(date, new MDate, 0); + +// helpers + +class Date_calendar_table_template_columns: public ArrayString { +public: + Date_calendar_table_template_columns(): ArrayString(6+2) { + for(int i=0; i<=6; i++) + *this+=new String(i, "%d"); // .i column name + + *this+=new String("week"); + *this+=new String("year"); + } +}; + + +Table date_calendar_table_template(new Date_calendar_table_template_columns); + // methods -static void _now(Request& r, const String& method_name, MethodParams *) { - Pool& pool=r.pool(); - VDate *vdate=static_cast(r.self); - vdate->set_time(time(0)); +static void _now(Request& r, MethodParams& params) { + VDate& vdate=GET_SELF(r, VDate); + + time_t t=time(0); + if(params.count()==1) // ^now(offset) + t+=(time_t)round(params.as_double(0, "offset must be double", r)*SECS_PER_DAY); + + vdate.set_time(t); +} + +/// shrinked range: 1970/1/1 to 2038/1/1 +static int to_year(int iyear) { + if(iyear<1970 || iyear>2038) + throw Exception(DATE_RANGE_EXCEPTION_TYPE, + 0, + "year '%d' is out of valid range", iyear); + return iyear; +} + +static int to_month(int imonth) { + return max(1, min(imonth, 12)) -1; +} + +static int to_tm_year(int iyear) { + return to_year(iyear)-1900; } -static void _set(Request& r, const String& method_name, MethodParams *params) { - Pool& pool=r.pool(); - VDate *vdate=static_cast(r.self); - - time_t time; - if(params->size()==1) // ^set(float days) - time=(time_t)(params->as_double(0, r)*SECS_PER_DAY); - else if(params->size()>=3) { // ^set(y;m;d[;h[;m[;s]]]) - tm tmIn={0}; + +// 2002-04-25 18:14:00 +// 18:14:00 +// 2002:04:25 [+maybe time] +/*not static, used in image.C*/ tm cstr_to_time_t(char *cstr) { + if( !cstr || !*cstr ) + throw Exception(DATE_RANGE_EXCEPTION_TYPE, + 0, + "empty string is not valid datetime"); + + char *cur=cstr; + char date_delim=isdigit((unsigned char)cur[0])&&isdigit((unsigned char)cur[1])&&isdigit((unsigned char)cur[2])&&isdigit((unsigned char)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=lsplit(&cur, '.'); + const char* msec=cur; + + tm tmIn; memset(&tmIn, 0, sizeof(tmIn)); + 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=msec=0; // not YYYY- & not HH: = just YYYY + tmIn.tm_year=to_tm_year(pa_atoi(year)); + tmIn.tm_mon=month?pa_atoi(month)-1:0; + tmIn.tm_mday=mday?pa_atoi(mday):1; +date_part_set: + tmIn.tm_hour=hour?pa_atoi(hour):0; + tmIn.tm_min=min?pa_atoi(min):0; + tmIn.tm_sec=sec?pa_atoi(sec):0; + //tmIn.tm_[msec<cstrm())); + } else { // ^create(float days) or ^create[date object] + time_t t=(time_t)round(params.as_double(0, "float days must be double", r)*SECS_PER_DAY); + if(t<0 || !localtime(&t)) + throw Exception(DATE_RANGE_EXCEPTION_TYPE, + 0, + "invalid datetime"); + vdate.set_time(t); + } + } else { // ^create(y;m;d[;h[;m[;s]]]) + assert(params.count()<=6); + tm tmIn; memset(&tmIn, 0, sizeof(tmIn)); tmIn.tm_isdst=-1; - int year=params->as_int(0, r); - if(year<70) // 0..69 -> 100..169 [2000..2069] - year+=100; - if(year>=1900) - year-=1900; - tmIn.tm_year=year; - tmIn.tm_mon=params->as_int(1, r)-1; - tmIn.tm_mday=params->as_int(2, r); - if(params->size()>3) tmIn.tm_hour=params->as_int(3, r); - if(params->size()>4) tmIn.tm_min=params->as_int(4, r); - if(params->size()>5) tmIn.tm_sec=params->as_int(5, r); - time=mktime(&tmIn); - if(time<0) - PTHROW(0, 0, - &method_name, - "invalid datetime"); - } else - PTHROW(0, 0, - &method_name, - "invalid params count, must be 1 or >=3"); - vdate->set_time(time); + tmIn.tm_year=to_tm_year(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.count()>2?params.as_int(2, "mday must be int", r):1; + int savedHour=0; + if(params.count()>3) savedHour=tmIn.tm_hour=params.as_int(3, "hour must be int", r); + if(params.count()>4) tmIn.tm_min=params.as_int(4, "minutes must be int", r); + if(params.count()>5) tmIn.tm_sec=params.as_int(5, "seconds must be int", r); + vdate.set_time(tmIn); + }; } -static void _string(Request& r, const String& method_name, MethodParams *) { - Pool& pool=r.pool(); - VDate *vdate=static_cast(r.self); +static void _sql_string(Request& r, MethodParams&) { + VDate& vdate=GET_SELF(r, VDate); 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(); - size=strftime(buf, size, "'%Y-%m-%d %H:%M:%S'", gmtime(&time)); - - Value& result=*new(pool) VString(*new(pool) String(pool, buf, size)); - r.write_assign_lang(result); + char *buf=new(PointerFreeGC) char[size]; + size=strftime(buf, size, "%Y-%m-%d %H:%M:%S", &vdate.get_localtime()); + + r.write_assign_lang(String(buf)); } +static void _gmt_string(Request& r, MethodParams&) { + VDate& vdate=GET_SELF(r, VDate); + + time_t when=vdate.get_time(); + + r.write_assign_lang(String(date_gmt_string(gmtime(&when)))); +} -static void _roll(Request& r, const String& method_name, MethodParams *params) { - Pool& pool=r.pool(); - VDate *vdate=static_cast(r.self); +static void _roll(Request& r, MethodParams& params) { + VDate& vdate=GET_SELF(r, VDate); - const String& what=params->as_string(0, "'what' must be string"); - int oyear=0; - int omonth=0; - int oday=0; + const String& what=params.as_string(0, "'what' must be string"); + int oyear=0; + int omonth=0; + int oday=0; int *offset; if(what=="year") offset=&oyear; else if(what=="month") offset=&omonth; else if(what=="day") offset=&oday; - else - PTHROW(0, 0, + else if(what=="TZ") { + const String& argument_tz=params.as_string(1, "'TZ' must be string"); + vdate.set_tz(&argument_tz); + return; + } else + throw Exception(PARSER_RUNTIME, &what, - "must be year|month|day"); + "must be year|month|day|TZ"); + + *offset=params.as_int(1, "offset must be int", r); + + 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(DATE_RANGE_EXCEPTION_TYPE, + 0, + "bad resulting time (rolled out of valid date range)"); + if(oday==0 && tmIn.tm_mon!=saved_mon/*but it changed*/) { + if(adjust_day <= -3/*31->28 max, so never, but...*/) + throw Exception(DATE_RANGE_EXCEPTION_TYPE, + 0, + "bad resulting time (day hole still with %d day adjustment)", adjust_day ); + + tmIn=tmSaved; // restoring + --adjust_day; //retrying with prev day + } else + break; + } + + tm *tmOut=localtime(&t_changed_date); + if(!tmOut) + throw Exception(DATE_RANGE_EXCEPTION_TYPE, + 0, + "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_isdst=-1; + { + time_t t_changed_time=mktime/*normalizetime*/(tmOut); + /*autofix: in msk timezone last sunday of march hour hole: [2am->3am) + if( + tmOut->tm_hour!=tmSaved.tm_hour + ||tmOut->tm_min!=tmSaved.tm_min) + throw Exception(0, + 0, + "bad resulting time (hour hole)"); + */ + + if(t_changed_time<0) + throw Exception(DATE_RANGE_EXCEPTION_TYPE, + 0, + "bad resulting time (after reconstruction)"); + + vdate.set_time(t_changed_time); + } +} + +static Table& fill_month_days(Request& r, MethodParams& params, bool rus){ + Table::Action_options table_options; + Table& result=*new Table(date_calendar_table_template, table_options); - *offset=params->as_int(1, r); - if(!(*offset==1 || *offset==-1)) - PTHROW(0, 0, - &method_name, - "offset must be +/- 1"); - - time_t tIn=vdate->get_time(); - tm *tmIn=localtime(&tIn); - tmIn->tm_year+=oyear; - time_t t=mktime(tmIn); + int year=to_year(params.as_int(1, "year must be int", r)); + int month=to_month(params.as_int(2, "month must be int", r)); + + tm tmIn; + memset(&tmIn, 0, sizeof(tmIn)); + tmIn.tm_mday=1; + tmIn.tm_mon=month; + tmIn.tm_year=year-1900; + + time_t t=mktime(&tmIn); if(t<0) - PTHROW(0, 0, - &method_name, - "invalid datetime"); - t+=omonth*getMonthDays(tmIn->tm_year, (tmIn->tm_mon+(omonth<0?-1:0)+12)%12)*SECS_PER_DAY; - t+=oday*SECS_PER_DAY; - vdate->set_time(t); + throw Exception(DATE_RANGE_EXCEPTION_TYPE, + 0, + "invalid date"); + 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;) { + Table::element_type row(new ArrayString(7)); + // calculating year week no [1..54] + int weekyear=0; // surely would be assigned to, but to calm down compiler + int weekno=0; // same + // 0..6 week days-cells fill with month days + for(int wday=0; wday<7; wday++, _day++) { + *row+=(_day>=1 && _day<=monthDays)?new String(_day, "%02d"):new String(); + + if(wday==(rus?3:4)/*thursday*/) { + tm tms; + memset(&tms, 0, sizeof(tmIn)); + tms.tm_mday=_day; + tms.tm_mon=month; + tms.tm_year=year-1900; + + /*normalize*/mktime(&tms); + weekyear=tms.tm_year+1900; + weekno=VDate::CalcWeek(tms).week; + } + } + // appending week no + *row+=new String(weekno, "%02d"); + + // appending week year + *row+=new String(weekyear, "%04d"); + + result+=row; + } + + return result; } -// constructor +static Table& fill_week_days(Request& r, MethodParams& params, bool rus){ + Table::columns_type columns(new ArrayString(4)); + *columns+=new String("year"); + *columns+=new String("month"); + *columns+=new String("day"); + *columns+=new String("weekday"); + Table& result=*new Table(columns); + + int year=to_year(params.as_int(1, "year must be int", r)); + int month=to_month(params.as_int(2, "month must be int", r)); + int day=params.as_int(3, "day must be int", r); + + tm tmIn; + memset(&tmIn, 0, sizeof(tmIn)); + tmIn.tm_hour=18; + tmIn.tm_mday=day; + tmIn.tm_mon=month; + tmIn.tm_year=year-1900; + + time_t t=mktime(&tmIn); + if(t<0) + throw Exception(DATE_RANGE_EXCEPTION_TYPE, + 0, + "invalid date"); + tm *tmOut=localtime(&t); + + int baseWeekDay=tmOut->tm_wday; + if(rus) + baseWeekDay=baseWeekDay?baseWeekDay-1:6; //sunday last + + t-=baseWeekDay*SECS_PER_DAY; + + for(int curWeekDay=0; curWeekDay<7; curWeekDay++, t+=SECS_PER_DAY) { + tm *tmOut=localtime(&t); + Table::element_type row(new ArrayString(4)); + + *row+=new String(1900+tmOut->tm_year, "%04d"); + *row+=new String(1+tmOut->tm_mon, "%02d"); + *row+=new String(tmOut->tm_mday, "%02d"); + *row+=new String(tmOut->tm_wday, "%02d"); -MDate::MDate(Pool& apool) : Methoded(apool) { - set_name(*NEW String(pool(), DATE_CLASS_NAME)); + result+=row; + } + + return result; +} +static void _calendar(Request& r, MethodParams& params) { + const String& what=params.as_string(0, "format must be strig"); + bool rus=false; + if(what=="rus") + rus=true; + else if(what=="eng") + rus=false; + else + throw Exception(PARSER_RUNTIME, + &what, + "must be rus|eng"); + + Table* table; + if(params.count()==1+2) + table=&fill_month_days(r, params, rus); + else // 1+3 + table=&fill_week_days(r, params, rus); - // ^now[] - add_native_method("now", Method::CT_DYNAMIC, _now, 0, 0); + r.write_no_lang(*new VTable(table)); +} - // ^set(float days) - add_native_method("set", Method::CT_DYNAMIC, _set, 1, 6); +static void _unix_timestamp(Request& r, MethodParams& params) { + VDate& vdate=GET_SELF(r, VDate); - // ^string[] - add_native_method("string", Method::CT_DYNAMIC, _string, 0, 0); + if(params.count()==0) { + // ^date.unix-timestamp[] + r.write_no_lang(*new VInt((int)vdate.get_time())); + } else { + if(vdate.get_time()) + throw Exception(PARSER_RUNTIME, + 0, + "date object already constructed"); - // ^roll(year|month|day;+/- 1) - add_native_method("roll", Method::CT_DYNAMIC, _roll, 2, 2); + // ^unix-timestamp(time_t) + time_t t=(time_t)params.as_int(0, "Unix timestamp must be integer", r); + vdate.set_time(t); + } } -// global variable -Methoded *date_class; +static void _last_day(Request& r, MethodParams& params) { + int year; + int month; + if(&r.get_self() == date_class) { + if(params.count() != 2) + throw Exception(PARSER_RUNTIME, + 0, + "year and month must be defined"); + + // ^date:lastday(year;month) + year=to_year(params.as_int(0, "year must be int", r)); + month=to_month(params.as_int(1, "month must be int", r)); + } else { + // ^date.lastday[] + tm &tmIn=GET_SELF(r, VDate).get_localtime(); + year=tmIn.tm_year+1900; + month=tmIn.tm_mon; + } + r.write_no_lang(*new VInt(getMonthDays(year, month))); +} + + +// constructor + +MDate::MDate(): Methoded("date") { + // ^date::now[] + add_native_method("now", Method::CT_DYNAMIC, _now, 0, 1); + + // ^date::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); + + // ^date.sql-string[] + add_native_method("sql-string", Method::CT_DYNAMIC, _sql_string, 0, 0); + + // ^date.gmt-string[] + add_native_method("gmt-string", Method::CT_DYNAMIC, _gmt_string, 0, 0); + + // ^date:lastday(year;month) + // ^date.lastday[] + add_native_method("last-day", Method::CT_ANY, _last_day, 0, 2); + + // ^date.roll(year|month|day;+/- 1) + add_native_method("roll", Method::CT_DYNAMIC, _roll, 2, 2); + + // ^date:calendar[month|montheng;year;month] = table + // ^date:calendar[week|weekeng;year;month;day] = table + add_native_method("calendar", Method::CT_STATIC, _calendar, 3, 4); -// creator -Methoded *MDate_create(Pool& pool) { - return date_class=new(pool) MDate(pool); + // ^date.unix-timestamp[] + // ^date::unix-timestamp[] + add_native_method("unix-timestamp", Method::CT_DYNAMIC, _unix_timestamp, 0, 1); }