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| version 1.15, 2002/02/08 07:27:39 | version 1.43, 2003/04/09 10:58:43 |
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| Line 1 | Line 1 |
| /** @file | /** @file |
| Parser: @b date parser class. | 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: Alexander Petrosyan <paf@design.ru> (http://paf.design.ru) | Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru) |
| $Id$ | |
| */ | */ |
| static const char* IDENT_DATE_C="$Date$"; | |
| #include "classes.h" | #include "classes.h" |
| #include "pa_request.h" | #include "pa_request.h" |
| #include "pa_vdouble.h" | #include "pa_vdouble.h" |
| #include "pa_vdate.h" | #include "pa_vdate.h" |
| #include "pa_vtable.h" | #include "pa_vtable.h" |
| // defines | |
| #define DATE_CLASS_NAME "date" | |
| // class | // class |
| class MDate : public Methoded { | class MDate : public Methoded { |
| Line 31 public: // Methoded | Line 27 public: // Methoded |
| // methods | // methods |
| static void _now(Request& r, const String& method_name, MethodParams *) { | static void _now(Request& r, const String& method_name, MethodParams *params) { |
| Pool& pool=r.pool(); | Pool& pool=r.pool(); |
| VDate *vdate=static_cast<VDate *>(r.self); | VDate *vdate=static_cast<VDate *>(r.get_self()); |
| vdate->set_time(time(0)); | |
| time_t t=time(0); | |
| if(params->size()==1) // ^now(offset) | |
| 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 _set(Request& r, const String& method_name, MethodParams *params) { | static void _create(Request& r, const String& method_name, MethodParams *params) { |
| Pool& pool=r.pool(); | Pool& pool=r.pool(); |
| VDate *vdate=static_cast<VDate *>(r.self); | VDate *vdate=static_cast<VDate *>(r.get_self()); |
| time_t time; | time_t t; |
| if(params->size()==1) // ^set(float days) | if(params->size()==1) { |
| time=(time_t)(params->as_double(0, "float days must be double", r)*SECS_PER_DAY); | // ^create[2002-04-25 18:14:00] |
| else if(params->size()>=3) { // ^set(y;m;d[;h[;m[;s]]]) | // ^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}; | tm tmIn={0}; |
| tmIn.tm_isdst=-1; | tmIn.tm_isdst=-1; |
| int year=params->as_int(0, "year must be int", r); | tmIn.tm_year=NN_year_to_NNNN(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_mon=params->as_int(1, "month must be int", r)-1; | tmIn.tm_mon=params->as_int(1, "month must be int", r)-1; |
| tmIn.tm_mday=params->as_int(2, "mday must be int", r); | 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); | if(params->size()>3) tmIn.tm_hour=params->as_int(3, "hour must be int", r); |
| if(params->size()>4) tmIn.tm_min=params->as_int(4, "minutes must be int", r); | if(params->size()>4) tmIn.tm_min=params->as_int(4, "minutes must be int", r); |
| if(params->size()>5) tmIn.tm_sec=params->as_int(5, "seconds must be int", r); | if(params->size()>5) tmIn.tm_sec=params->as_int(5, "seconds must be int", r); |
| time=mktime(&tmIn); | t=mktime(&tmIn); |
| if(time<0) | if(t<0) |
| throw Exception(0, 0, | throw Exception(0, |
| &method_name, | &method_name, |
| "invalid datetime"); | "invalid datetime"); |
| } else | } else |
| throw Exception(0, 0, | throw Exception("parser.runtime", |
| &method_name, | &method_name, |
| "invalid params count, must be 1 or >=3"); | "invalid params count, must be 1 or >=2"); |
| vdate->set_time(time); | vdate->set_time(t); |
| } | } |
| static void _sql_string(Request& r, const String& method_name, MethodParams *) { | static void _sql_string(Request& r, const String& method_name, MethodParams *) { |
| Pool& pool=r.pool(); | Pool& pool=r.pool(); |
| VDate *vdate=static_cast<VDate *>(r.self); | VDate *vdate=static_cast<VDate *>(r.get_self()); |
| int size=1+ 4+1+2+1+2 +1+ 2+1+2+1+2 +1 +1; | int size=1+ 4+1+2+1+2 +1+ 2+1+2+1+2 +1 +1; |
| char *buf=(char *)pool.malloc(size); | char *buf=(char *)pool.malloc(size); |
| time_t time=vdate->get_time(); | time_t time=vdate->get_time(); |
| Line 82 static void _sql_string(Request& r, cons | Line 142 static void _sql_string(Request& r, cons |
| string.APPEND_CLEAN(buf, size, | string.APPEND_CLEAN(buf, size, |
| method_name.origin().file, | method_name.origin().file, |
| method_name.origin().line); | method_name.origin().line); |
| Value& result=*new(pool) VString(string); | r.write_assign_lang(string); |
| r.write_assign_lang(result); | |
| } | } |
| static void _roll(Request& r, const String& method_name, MethodParams *params) { | static void _roll(Request& r, const String& method_name, MethodParams *params) { |
| Pool& pool=r.pool(); | Pool& pool=r.pool(); |
| VDate *vdate=static_cast<VDate *>(r.self); | VDate *vdate=static_cast<VDate *>(r.get_self()); |
| const String& what=params->as_string(0, "'what' must be string"); | const String& what=params->as_string(0, "'what' must be string"); |
| int oyear=0; | int oyear=0; |
| int omonth=0; | int omonth=0; |
| int oday=0; | int oday=0; |
| int *offset; | int *offset; |
| if(what=="year") offset=&oyear; | if(what=="year") offset=&oyear; |
| else if(what=="month") offset=&omonth; | else if(what=="month") offset=&omonth; |
| else if(what=="day") offset=&oday; | else if(what=="day") offset=&oday; |
| else | else |
| throw Exception(0, 0, | throw Exception("parser.runtime", |
| &what, | &what, |
| "must be year|month|day"); | "must be year|month|day"); |
| *offset=params->as_int(1, "offset must be int", r); | *offset=params->as_int(1, "offset must be int", r); |
| if(!(*offset==1 || *offset==-1)) | |
| throw Exception(0, 0, | |
| &method_name, | |
| "offset must be +/- 1"); | |
| time_t self_time=vdate->get_time(); | time_t self_time=vdate->get_time(); |
| tm tmIn=*localtime(&self_time); | tm tmIn=*localtime(&self_time); |
| // we will preserve daytime from day-light-saving shifts across roll | |
| tm tmSaved=tmIn; | tm tmSaved=tmIn; |
| tmIn.tm_hour=24/2; tmIn.tm_min=tmIn.tm_sec=0; | 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; | |
| 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; | tm *tmOut=localtime(&t_changed_date); |
| time_t t=mktime(&tmIn); | |
| t+=omonth*getMonthDays(tmIn.tm_year, (tmIn.tm_mon+(omonth<0?-1:0)+12)%12)*SECS_PER_DAY; | |
| t+=oday*SECS_PER_DAY; | |
| tm *tmOut=localtime(&t); | |
| if(!tmOut) | if(!tmOut) |
| throw Exception(0, 0, | throw Exception(0, |
| &method_name, | &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_hour=tmSaved.tm_hour; |
| tmOut->tm_min=tmSaved.tm_min; | tmOut->tm_min=tmSaved.tm_min; |
| tmOut->tm_sec=tmSaved.tm_sec; | tmOut->tm_sec=tmSaved.tm_sec; |
| tmOut->tm_isdst=-1; | |
| { | { |
| time_t t=mktime(tmOut); | time_t t_changed_time=mktime/*normalizetime*/(tmOut); |
| if(t<0) | /*autofix: in msk timezone last sunday of april hour hole: [2am->3am) |
| throw Exception(0, 0, | if( |
| &method_name, | tmOut->tm_hour!=tmSaved.tm_hour |
| "bad resulting time (after reconstruction)"); | ||tmOut->tm_min!=tmSaved.tm_min) |
| throw Exception(0, | |
| &method_name, | |
| "bad resulting time (hour hole)"); | |
| */ | |
| 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, | static Table *fill_month_days(Request& r, |
| const String& method_name, MethodParams *params, bool rus){ | const String& method_name, MethodParams *params, bool rus){ |
| Pool& pool=r.pool(); | Pool& pool=r.pool(); |
| Table *result=new(pool) Table(pool, &method_name, 0/*&columns*/); | Table *result=new(pool) Table(pool, *date_calendar_table_template); |
| 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}; | int year=params->as_int(1, "year must be int", r); |
| time_t t=mktime(&tmIn); | 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) | if(t<0) |
| throw Exception(0, 0, | throw Exception(0, |
| &method_name, | &method_name, |
| "invalid date"); | "invalid date"); |
| tm *tmOut=localtime(&t); | tm *tmOut=localtime(&t); |
| int weekDay1=tmOut->tm_wday; | int weekDay1=tmOut->tm_wday; |
| if(rus) | if(rus) |
| weekDay1=weekDay1?weekDay1-1:6; //sunday last | weekDay1=weekDay1?weekDay1-1:6; //sunday last |
| int monthDays=getMonthDays(year, month); | int monthDays=getMonthDays(year, month); |
| for(int _day=1-weekDay1; _day<=monthDays;) { | for(int _day=1-weekDay1; _day<=monthDays;) { |
| Array& row=*new(pool) Array(pool, 7); | Array& row=*new(pool) Array(pool, 7); |
| for(int wday=0; wday<7; wday++, _day++) { | // calculating year week no [1..54] |
| String *cell=new(pool) String(pool); | 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) { | if(_day>=1 && _day<=monthDays) { |
| char *buf=(char *)pool.malloc(2+1); | char *buf=(char *)pool.malloc(2+1); |
| cell->APPEND_CLEAN(buf, sprintf(buf, "%02d", _day), | cell->APPEND_CLEAN(buf, sprintf(buf, "%02d", _day), |
| method_name.origin().file, method_name.origin().line); | method_name.origin().file, method_name.origin().line); |
| } | } |
| row+=cell; | 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; | *result+=&row; |
| } | } |
| Line 183 static Table *fill_week_days(Request& r, | Line 303 static Table *fill_week_days(Request& r, |
| const String& method_name, MethodParams *params, bool rus){ | const String& method_name, MethodParams *params, bool rus){ |
| Pool& pool=r.pool(); | Pool& pool=r.pool(); |
| Array& columns=*new(pool) Array(pool, 4); | Array& columns=*new(pool) Array(pool, 4); |
| columns+=new(pool) String(pool, "year"); | |
| columns+=new(pool) String(pool, "month"); | |
| columns+=new(pool) String(pool, "day"); | |
| columns+=new(pool) String(pool, "weekday"); | |
| Table *result=new(pool) Table(pool, &method_name, &columns); | Table *result=new(pool) Table(pool, &method_name, &columns); |
| int year=params->as_int(1, "year must be int", r); | int year=params->as_int(1, "year must be int", r); |
| Line 192 static Table *fill_week_days(Request& r, | Line 316 static Table *fill_week_days(Request& r, |
| tm tmIn={0, 0, 18, day, month, year-1900}; | tm tmIn={0, 0, 18, day, month, year-1900}; |
| time_t t=mktime(&tmIn); | time_t t=mktime(&tmIn); |
| if(t<0) | if(t<0) |
| throw Exception(0, 0, | throw Exception(0, |
| &method_name, | &method_name, |
| "invalid date"); | "invalid date"); |
| tm *tmOut=localtime(&t); | tm *tmOut=localtime(&t); |
| Line 234 static void _calendar(Request& r, const | Line 358 static void _calendar(Request& r, const |
| else if(what=="eng") | else if(what=="eng") |
| rus=false; | rus=false; |
| else | else |
| throw Exception(0, 0, | throw Exception("parser.runtime", |
| &what, | &what, |
| "must be rus|eng"); | "must be rus|eng"); |
| Line 245 static void _calendar(Request& r, const | Line 369 static void _calendar(Request& r, const |
| table=fill_week_days(r, method_name, params, rus); | table=fill_week_days(r, method_name, params, rus); |
| VTable& result=*new(pool) VTable(pool, table); | VTable& result=*new(pool) VTable(pool, table); |
| result.set_name(method_name); | |
| r.write_no_lang(result); | r.write_no_lang(result); |
| } | } |
| // constructor | // constructor |
| MDate::MDate(Pool& apool) : Methoded(apool) { | MDate::MDate(Pool& apool) : Methoded(apool, "date") { |
| set_name(*NEW String(pool(), DATE_CLASS_NAME)); | |
| // ^now[] | // ^now[] |
| add_native_method("now", Method::CT_DYNAMIC, _now, 0, 0); | add_native_method("now", Method::CT_DYNAMIC, _now, 0, 1); |
| // ^set(float days) | // ^create(float days) |
| add_native_method("set", Method::CT_DYNAMIC, _set, 1, 6); | 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[] | // ^sql-string[] |
| add_native_method("sql-string", Method::CT_DYNAMIC, _sql_string, 0, 0); | add_native_method("sql-string", Method::CT_DYNAMIC, _sql_string, 0, 0); |