--- parser3/src/classes/date.C 2001/07/07 17:59:02 1.2 +++ parser3/src/classes/date.C 2015/09/22 23:41:19 1.98 @@ -1,148 +1,539 @@ /** @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) 2001-2012 Art. Lebedev Studio (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 $"; #include "classes.h" +#include "pa_vmethod_frame.h" + #include "pa_request.h" #include "pa_vdouble.h" #include "pa_vdate.h" +#include "pa_vtable.h" -// defines - -#define DATE_CLASS_NAME "date" +volatile const char * IDENT_DATE_C="$Id: date.C,v 1.98 2015/09/22 23:41:19 moko Exp $" IDENT_PA_VDATE_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&) { return new VDate(0); } + +public: + MDate(); +}; + +// global variable +DECLARE_CLASS_VAR(date, new MDate, 0); + +// helpers + +class Date_calendar_table_template_columns: public ArrayString { public: - MDate(Pool& pool); -public: // Methoded - bool used_directly() { return true; } + 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); + + pa_time_t t=(pa_time_t)time(0); + if(params.count()==1) // ^now(offset) + t+=(pa_time_t)round(params.as_double(0, "offset must be double", r)*SECS_PER_DAY); + + vdate.set_time(t); +} + +static void _today(Request& r, MethodParams&) { + VDate& vdate=GET_SELF(r, VDate); + + time_t t=time(0); + + tm today=*localtime(&t); + today.tm_hour=0; + today.tm_min=0; + today.tm_sec=0; + + vdate.set_tm(today); +} + +static int to_year(int iyear) { + if(iyear<0 || iyear>9999) + throw Exception(DATE_RANGE_EXCEPTION_TYPE, 0, "year '%d' is out of range 0..9999", iyear); + return iyear-1900; +} + +static int to_month(int imonth) { + return max(1, min(imonth, 12)) -1; +} + + +static const char *skip_number_throw(char *string, char c, const char *valid){ + if(!valid[0]) + throw Exception("date.format", 0, "invalid character '%c' after number in '%s'", c, string); + if(!strcmp(valid, "+-Z")) + throw Exception("date.format", 0, "invalid timezone character '%c' after number in '%s'", c, string); + throw Exception("date.format", 0, "number delimiter '%c'%s expected, but found '%c' in date '%s'", + valid[0], valid[strlen(valid)-1] == 'Z' ? " or timezone":"", c, string); +} + +static char *skip_number(char* string, const char *valid_delim, char *delim) { + if(string) { + char *str=string; + // skipping whitespace + while(isspace(str[0])) str++; + // skipping +- + if(str[0]=='-' || str[0]=='+') str++; + // at least one digit should be present + if(!str[0]) + throw Exception("date.format", 0, "number expected in date '%s'", string); + if(!isdigit(str[0])) + throw Exception("date.format", 0, "'%c' must be number in date '%s'", str[0], string); + str++; + // skipping digits + while(isdigit(str[0])) str++; + // skipping trailing whitespace + if(!strchr(valid_delim, ' ')) + while(isspace(str[0])) str++; + // delimiter check + if(char c=str[0]){ + if(!strchr(valid_delim, c)) + skip_number_throw(string, c, valid_delim); + if(delim) + *delim=c; + str[0]=0; + return str+1; + } + } + if(delim) + *delim=0; + return 0; +} + +static char *skip_number(char** string_ref, const char *valid_delim, char *delim=0) { + char *result=*string_ref; + *string_ref=skip_number(*string_ref, valid_delim, delim); + return result; +} + +static char *skip_writespace(char* str) { + if(str){ + while(isspace(str[0])) str++; + return str[0] ? str : 0; + } + return 0; +} + +static char *numeric_tz(char prefix, char* tz) { + char *cur=tz; + // hours + if(!isdigit(*(cur++))) + return 0; + if(isdigit(cur[0])) + cur++; + if(cur[0] == ':'){ + // optional minutes + cur++; + if(!isdigit(*(cur++))) + return 0; + if(isdigit(cur[0])) + cur++; + } + // nothing more + if(skip_writespace(cur)) + return 0; + // returning POSIX TZ format + size_t size=4+(cur-tz)+1/*zero-teminator*/; + char *buf=new(PointerFreeGC) char[size]; + strcpy(buf, prefix=='+' ? "SUB-":"SUB+"); + strncpy(buf+4, tz, cur-tz); + buf[size-1]=0; + return buf; } -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}; +// SQL 2002-04-25 18:14:00 +// ISO 2002-04-25T18:14:00.45+01:00 +// TIME 18:14:00 +// ':' DELIMITED 2002:04:25 [+maybe time] +// not static, used in image.C +tm cstr_to_time_t(char *cstr, const char **tzOut) { + if( !cstr || !*cstr ) + throw Exception(DATE_RANGE_EXCEPTION_TYPE, 0, "empty string is not valid datetime"); + if(tzOut) + *tzOut=0; + + tm tmIn; + memset(&tmIn, 0, sizeof(tmIn)); + tmIn.tm_isdst=-1; + + char delim; + char *cur=cstr; + + const char *year, *month, *mday; + const char *hour, *min, *sec, *msec; + + year=skip_number(&cur, "-:", &delim); + if(delim != ':' || delim == ':' && strlen(year) >=4 ){ + // year present + month=skip_number(&cur, delim == ':' ? ":" : "-"); + mday=skip_number(&cur, tzOut ? " \tT":" \t", &delim); + if(delim != 'T'){ + // SQL date format + cur=skip_writespace(cur); + hour=skip_number(&cur, ":"); + min=skip_number(&cur, ":"); + sec=skip_number(&cur, "."); + msec=skip_number(&cur, ""); + } else { + // ISO date format + hour=skip_number(&cur, ":"); + min=skip_number(&cur, ":+-Z", &delim); + sec=delim==':' ? skip_number(&cur, ".+-Z", &delim) : 0; + msec=delim=='.' ? skip_number(&cur, "+-Z", &delim) : 0; + // timezone specification check + const char *tz = delim == 'Z' ? (skip_writespace(cur) ? 0 : "UTC") : (cur ? numeric_tz(delim, cur) : 0); + if(!tz){ + if(!delim) + throw Exception("date.format", 0, "empty timezone"); + throw Exception("date.format", 0, "invalid timezone '%c%s'", delim, cur ? cur : ""); + } + *tzOut=tz; + } + + tmIn.tm_year=to_year(pa_atoi(year)); + tmIn.tm_mon=month?pa_atoi(month)-1:0; + tmIn.tm_mday=mday?pa_atoi(mday):1; + } else { + // time only + hour=year; + min=skip_number(&cur, ":"); + sec=skip_number(&cur, "."); + msec=skip_number(&cur, ""); + + 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; + } + + 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(), &tz); + if(tz) + vdate.set_tz(tz); + vdate.set_tm(tmIn); + } else { // ^create(float days) or ^create[date object] + vdate.set_time(round(params.as_double(0, "float days must be double", r)*SECS_PER_DAY)); + } + } 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_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; + if(params.count()>3) 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_tm(tmIn); + }; } -static void _string(Request& r, const String& method_name, MethodParams *) { - Pool& pool=r.pool(); - VDate *vdate=static_cast(r.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(); - 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); +static void _sql_string(Request& r, MethodParams& params) { + VDate& vdate=GET_SELF(r, VDate); + + VDate::sql_string_type format = VDate::sql_string_datetime; + if(params.count() > 0) { + const String& what=params.as_string(0, "'type' must be string"); + if(what.is_empty() || what == "datetime") + format = VDate::sql_string_datetime; + else if(what == "date") + format=VDate::sql_string_date; + else if(what == "time") + format=VDate::sql_string_time; + else + throw Exception(PARSER_RUNTIME, &what, "'type' must be 'date', 'time' or 'datetime'"); + } + + r.write_assign_lang(*vdate.get_sql_string(format)); } +static void _gmt_string(Request& r, MethodParams&) { + 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); + r.write_assign_lang(*vdate.get_gmt_string()); +} - const String& what=params->as_string(0, "'what' must be string"); - int oyear=0; - int omonth=0; - int oday=0; +static void _iso_string(Request& r, MethodParams&) { + VDate& vdate=GET_SELF(r, VDate); + + r.write_assign_lang(*vdate.get_iso_string()); +} + +static void _roll(Request& r, MethodParams& params) { + 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, - &what, - "must be year|month|day"); - - *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); - 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); + else if(what=="TZ") { + const String& argument_tz=params.as_string(1, "'TZ' must be string"); + if(&r.get_self() == date_class){ + VDate::set_default_tz(argument_tz.cstr()); + } else { + VDate& vdate=GET_SELF(r, VDate); + vdate.set_tz(argument_tz.cstr()); + vdate.set_time(vdate.get_time()); + } + return; + } else + throw Exception(PARSER_RUNTIME, &what, "must be year|month|day|TZ"); + + if(&r.get_self() == date_class) + throw Exception(PARSER_RUNTIME, &what, "must be TZ to be called statically"); + + VDate& vdate=GET_SELF(r, VDate); + + *offset=params.as_int(1, "offset must be int", r); + + tm tmIn=vdate.get_tm(); + tm tmSaved=tmIn; + int adjust_day=0; + 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_day=tmIn.tm_mday; + vdate.set_tm(tmIn); /* normalize */ + + if(oday==0 && tmIn.tm_mday!=saved_day /* 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; + } + + tmIn.tm_hour=tmSaved.tm_hour; + tmIn.tm_min=tmSaved.tm_min; + tmIn.tm_sec=tmSaved.tm_sec; + tmIn.tm_isdst=-1; + + vdate.set_tm(tmIn); } -// constructor +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); + + tm tmIn; + memset(&tmIn, 0, sizeof(tmIn)); + tmIn.tm_year=to_year(params.as_int(1, "year must be int", r)); + tmIn.tm_mon=to_month(params.as_int(2, "month must be int", r)); + tmIn.tm_mday=1; + + VDate t(tmIn); /* normalize */ + int weekDay1=tmIn.tm_wday; + + if(rus) + weekDay1=weekDay1?weekDay1-1:6; //sunday last + int monthDays=VDate::getMonthDays(tmIn.tm_year, tmIn.tm_mon); + + 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(tms)); + tms.tm_mday=_day; + tms.tm_mon=tmIn.tm_mon; + tms.tm_year=tmIn.tm_year; + + VDate ts(tms); /*normalize*/ + 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; +} -MDate::MDate(Pool& apool) : Methoded(apool) { - set_name(*NEW String(pool(), DATE_CLASS_NAME)); +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); + + tm tmIn; + memset(&tmIn, 0, sizeof(tmIn)); + tmIn.tm_year=to_year(params.as_int(1, "year must be int", r)); + tmIn.tm_mon=to_month(params.as_int(2, "month must be int", r)); + tmIn.tm_mday=params.as_int(3, "day must be int", r); + tmIn.tm_hour=18; + VDate t(tmIn); /* normalize */ + int baseWeekDay=tmIn.tm_wday; - // ^now[] - add_native_method("now", Method::CT_DYNAMIC, _now, 0, 0); + if(rus) + baseWeekDay=baseWeekDay?baseWeekDay-1:6; //sunday last + + t.set_time(t.get_time()-baseWeekDay*SECS_PER_DAY); + + for(int curWeekDay=0; curWeekDay<7; curWeekDay++, t.set_time(t.get_time()+SECS_PER_DAY)) { + Table::element_type row(new ArrayString(4)); + + tm tmOut=t.get_tm(); + *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"); - // ^set(float days) - add_native_method("set", Method::CT_DYNAMIC, _set, 1, 6); + result+=row; + } + + return result; +} - // ^string[] - add_native_method("string", Method::CT_DYNAMIC, _string, 0, 0); +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"); - // ^roll(year|month|day;+/- 1) - add_native_method("roll", Method::CT_DYNAMIC, _roll, 2, 2); + 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)); } -// global variable -Methoded *date_class; +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 VDouble((double)vdate.get_time())); + } else { + if(vdate.get_time()) + throw Exception(PARSER_RUNTIME, 0, "date object already constructed"); + // ^unix-timestamp(time_t) + vdate.set_time(params.as_double(0, "Unix timestamp must be number", r)); + } +} + +static void _last_day(Request& r, MethodParams& params) { + tm tmIn; + 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) + tmIn.tm_year=to_year(params.as_int(0, "year must be int", r)); + tmIn.tm_mon=to_month(params.as_int(1, "month must be int", r)); + } else { + if(params.count() != 0) + throw Exception(PARSER_RUNTIME, 0, "year and month must not be defined"); + // ^date.lastday[] + tmIn=GET_SELF(r, VDate).get_tm(); + } + r.write_no_lang(*new VInt(VDate::getMonthDays(tmIn.tm_year, tmIn.tm_mon))); +} -// creator +// constructor -Methoded *MDate_create(Pool& pool) { - return date_class=new(pool) MDate(pool); +MDate::MDate(): Methoded("date") { + // ^date::now[] + // ^date::now(offset float days) + add_native_method("now", Method::CT_DYNAMIC, _now, 0, 1); + + // ^date::today[] + add_native_method("today", Method::CT_DYNAMIC, _today, 0, 0); + + // ^date::create(float days) + // ^date::create[date] + // ^date::create(year;month;day[;hour[;minute[;sec]]]) + // ^date::create[yyyy-mm-dd[ hh:mm:ss]] + // ^date::create[hh:mm:ss] + 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, 1); + + // ^date.gmt-string[] + add_native_method("gmt-string", Method::CT_DYNAMIC, _gmt_string, 0, 0); + + // ^date.iso-string[] + add_native_method("iso-string", Method::CT_DYNAMIC, _iso_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_ANY, _roll, 2, 2); + + // ^date:calendar[rus|eng](year;month) = table + // ^date:calendar[rus|eng](year;month;day) = table + add_native_method("calendar", Method::CT_STATIC, _calendar, 3, 4); + + // ^date.unix-timestamp[] + // ^date::unix-timestamp(timestamp) + add_native_method("unix-timestamp", Method::CT_DYNAMIC, _unix_timestamp, 0, 1); }