--- parser3/src/classes/date.C 2001/07/07 17:59:02 1.2 +++ parser3/src/classes/date.C 2006/11/20 18:43:06 1.75 @@ -1,148 +1,424 @@ /** @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 1.2 2001/07/07 17:59:02 parser Exp $ + Copyright (c) 2001-2005 ArtLebedev Group (http://www.artlebedev.com) + Author: Alexandr Petrosian (http://paf.design.ru) */ -static const char *RCSId="$Id: date.C,v 1.2 2001/07/07 17:59:02 parser Exp $"; + +static const char * const IDENT_DATE_C="$Date: 2006/11/20 18:43:06 $"; #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++) { + char *cname=new(PointerFreeGC) char[1/*strlen("6")*/+1/*terminating 0*/]; + *this+=new String(cname, sprintf(cname, "%d", i)); // .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_tm_year(int iyear) { + if(iyear<1970 || iyear>2038) + throw Exception(0, + 0, + "year '%d' is out of valid range", iyear); + return iyear-1900; +} + +// 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(0, + 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<(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}; +static void _create(Request& r, MethodParams& params) { + VDate& vdate=GET_SELF(r, VDate); + + if(params.count()==1) { + // ^create[2002-04-25 18:14:00] + // ^create[18:14:00] + if(const String* sdate=params[0].get_string()) + vdate.set_time(cstr_to_time_t(sdate->cstrm())); + else { // ^create(float days) + 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(0, + 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; - 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)); + char *buf=new(PointerFreeGC) char[size]; + size=strftime(buf, size, "%Y-%m-%d %H:%M:%S", &vdate.get_localtime()); - Value& result=*new(pool) VString(*new(pool) String(pool, buf, size)); - r.write_assign_lang(result); + r.write_assign_lang(String(buf, size)); } +static void _roll(Request& r, MethodParams& params) { + VDate& vdate=GET_SELF(r, VDate); -static void _roll(Request& r, const String& method_name, MethodParams *params) { - Pool& pool=r.pool(); - VDate *vdate=static_cast(r.self); - - 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(0, + 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(0, + 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(0, + 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(0, + 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); + + 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; - *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); + 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(0, + 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] + char *weekno_buf=0; // surely would be assigned to, but to calm down compiler + size_t weekno_size=0; // same + int weekyear=0; // same + // 0..6 week days-cells fill with month days + for(int wday=0; wday<7; wday++, _day++) { + String* cell=new String; + if(_day>=1 && _day<=monthDays) { + char *buf=new(PointerFreeGC) char[2+1]; + cell->append_know_length(buf, sprintf(buf, "%02d", _day), String::L_CLEAN); + } + *row+=cell; + + 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; + + const int weekno_buf_size=2+1/*for stupid snprintfs*/ +1; + + weekno_buf=new(PointerFreeGC) char[weekno_buf_size]; + weekno_size=snprintf(weekno_buf, weekno_buf_size, "%02d", VDate::week_no(tms)); + } + + } + // appending year week no + *row+=new String(weekno_buf, weekno_size); + // appending year week year + { + char* buf=new(PointerFreeGC) char[4+1]; + *row+=new String(buf, sprintf(buf, "%02d", weekyear)); + } + 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=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; + 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(0, + 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)); +#define WDFILL(size, value) { \ + char *buf=new(PointerFreeGC) char[size+1]; \ + *row+=new String(buf, sprintf(buf, "%0"#size"d", value)); \ + } + WDFILL(4, 1900+tmOut->tm_year); + WDFILL(2, 1+tmOut->tm_mon); + WDFILL(2, tmOut->tm_mday); + WDFILL(2, tmOut->tm_wday); + result+=row; + } + + return result; +} -MDate::MDate(Pool& apool) : Methoded(apool) { - set_name(*NEW String(pool(), DATE_CLASS_NAME)); +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); + + r.write_no_lang(*new VTable(table)); +} + +static void _unix_timestamp(Request& r, MethodParams& params) { + VDate& vdate=GET_SELF(r, VDate); + if(params.count()==0) { + // ^date.unix-timestamp[] + r.write_no_lang(*new VInt((int)vdate.get_time())); + } else { + if(vdate.get_time()) + throw Exception(0, + 0, + "date object already constructed"); + + // ^unix-timestamp(time_t) + time_t t=(time_t)params.as_int(0, "Unix timestamp must be integer", r); + + vdate.set_time(t); + } +} + +// constructor + +MDate::MDate(): Methoded("date") { // ^now[] - add_native_method("now", Method::CT_DYNAMIC, _now, 0, 0); + add_native_method("now", Method::CT_DYNAMIC, _now, 0, 1); - // ^set(float days) - add_native_method("set", Method::CT_DYNAMIC, _set, 1, 6); + // ^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); - // ^string[] - add_native_method("string", Method::CT_DYNAMIC, _string, 0, 0); + // ^sql-string[] + add_native_method("sql-string", Method::CT_DYNAMIC, _sql_string, 0, 0); // ^roll(year|month|day;+/- 1) add_native_method("roll", Method::CT_DYNAMIC, _roll, 2, 2); -} -// global variable - -Methoded *date_class; + // ^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); + // ^unix-timestamp[] + add_native_method("unix-timestamp", Method::CT_DYNAMIC, _unix_timestamp, 0, 1); }