Annotation of parser3/src/classes/date.C, revision 1.45
1.1 parser 1: /** @file
2: Parser: @b date parser class.
3:
1.42 paf 4: Copyright (c) 2001, 2003 ArtLebedev Group (http://www.artlebedev.com)
1.16 paf 5: Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
1.32 paf 6: */
1.1 parser 7:
1.45 ! paf 8: static const char* IDENT_DATE_C="$Date: 2003/04/09 11:18:33 $";
1.1 parser 9:
10: #include "classes.h"
11: #include "pa_request.h"
12: #include "pa_vdouble.h"
13: #include "pa_vdate.h"
1.10 parser 14: #include "pa_vtable.h"
1.1 parser 15:
16: // class
17:
18: class MDate : public Methoded {
19: public: // VStateless_class
20: Value *create_new_value(Pool& pool) { return new(pool) VDate(pool, 0); }
21:
22: public:
23: MDate(Pool& pool);
24: public: // Methoded
25: bool used_directly() { return true; }
26: };
27:
28: // methods
29:
1.23 paf 30: static void _now(Request& r, const String& method_name, MethodParams *params) {
1.1 parser 31: Pool& pool=r.pool();
1.37 paf 32: VDate *vdate=static_cast<VDate *>(r.get_self());
1.23 paf 33:
34: time_t t=time(0);
35: if(params->size()==1) // ^now(offset)
1.39 paf 36: t+=(time_t)round(params->as_double(0, "offset must be double", r)*SECS_PER_DAY);
1.23 paf 37:
38: vdate->set_time(t);
1.1 parser 39: }
40:
1.28 paf 41: static int NN_year_to_NNNN(int year) {
42: if(year<70) // 0..69 -> 100..169 [2000..2069]
43: year+=100;
44: if(year>=1900)
45: year-=1900;
46: return year;
47: }
48:
1.41 paf 49: // 2002-04-25 18:14:00
50: // 18:14:00
51: // 2002:04:25 [+maybe time]
52: time_t cstr_to_time_t(char *cstr, const String *report_error_origin) { // used in image.C
53: char *cur=cstr;
54: int date_delim=isdigit(cur[0])&&isdigit(cur[1])&&isdigit(cur[2])&&isdigit(cur[3])&&cur[4]==':'?':'
55: :'-';
56: const char *year=lsplit(&cur, date_delim);
57: const char *month=lsplit(&cur, date_delim);
58: const char *mday=lsplit(&cur, ' ');
59: if(!month)
60: cur=cstr;
61: const char *hour=lsplit(&cur, ':');
62: const char *min=lsplit(&cur, ':');
63: const char *sec=cur;
64:
65: tm tmIn={0};
66: tmIn.tm_isdst=-1;
67: if(!month)
68: if(min) {
69: year=mday=0; // HH:MM
70: time_t t=time(0);
71: tm *tmNow=localtime(&t);
72: tmIn.tm_year=tmNow->tm_year;
73: tmIn.tm_mon=tmNow->tm_mon;
74: tmIn.tm_mday=tmNow->tm_mday;
75: goto date_part_set;
76: } else
77: hour=min=sec=0; // not YYYY- & not HH: = just YYYY
78: tmIn.tm_year=NN_year_to_NNNN(atoi(year));
79: tmIn.tm_mon=month?atoi(month)-1:0;
80: tmIn.tm_mday=mday?atoi(mday):1;
81: date_part_set:
82: tmIn.tm_hour=hour?atoi(hour):0;
83: tmIn.tm_min=min?atoi(min):0;
84: tmIn.tm_sec=sec?atoi(sec):0;
85: time_t result=mktime(&tmIn);
86: if(result<0)
87: if(report_error_origin)
88: throw Exception(0,
89: report_error_origin,
90: "invalid datetime");
91:
92: return result;
93: }
94:
1.17 paf 95: static void _create(Request& r, const String& method_name, MethodParams *params) {
1.1 parser 96: Pool& pool=r.pool();
1.37 paf 97: VDate *vdate=static_cast<VDate *>(r.get_self());
1.1 parser 98:
1.23 paf 99: time_t t;
1.28 paf 100: if(params->size()==1) {
1.31 paf 101: // ^create[2002-04-25 18:14:00]
102: // ^create[18:14:00]
1.41 paf 103: if(const String *sdate=params->get(0).get_string())
104: t=cstr_to_time_t(sdate->cstr(), sdate);
105: else { // ^create(float days)
1.38 paf 106: t=(time_t)round(params->as_double(0, "float days must be double", r)*SECS_PER_DAY);
1.28 paf 107: if(t<0 || !localtime(&t))
108: throw Exception(0,
109: &method_name,
110: "invalid datetime");
111: }
1.40 paf 112: } else if(params->size()>=2) { // ^create(y;m;d[;h[;m[;s]]])
1.1 parser 113: tm tmIn={0};
114: tmIn.tm_isdst=-1;
1.28 paf 115: tmIn.tm_year=NN_year_to_NNNN(params->as_int(0, "year must be int", r));
1.9 parser 116: tmIn.tm_mon=params->as_int(1, "month must be int", r)-1;
1.24 paf 117: tmIn.tm_mday=params->size()>2?params->as_int(2, "mday must be int", r):1;
1.9 parser 118: if(params->size()>3) tmIn.tm_hour=params->as_int(3, "hour must be int", r);
119: if(params->size()>4) tmIn.tm_min=params->as_int(4, "minutes must be int", r);
120: if(params->size()>5) tmIn.tm_sec=params->as_int(5, "seconds must be int", r);
1.23 paf 121: t=mktime(&tmIn);
122: if(t<0)
1.22 paf 123: throw Exception(0,
1.1 parser 124: &method_name,
125: "invalid datetime");
126: } else
1.22 paf 127: throw Exception("parser.runtime",
1.1 parser 128: &method_name,
1.24 paf 129: "invalid params count, must be 1 or >=2");
1.23 paf 130: vdate->set_time(t);
1.1 parser 131: }
132:
1.5 parser 133: static void _sql_string(Request& r, const String& method_name, MethodParams *) {
1.1 parser 134: Pool& pool=r.pool();
1.37 paf 135: VDate *vdate=static_cast<VDate *>(r.get_self());
1.2 parser 136: int size=1+ 4+1+2+1+2 +1+ 2+1+2+1+2 +1 +1;
1.1 parser 137: char *buf=(char *)pool.malloc(size);
138: time_t time=vdate->get_time();
1.14 paf 139: size=strftime(buf, size, "%Y-%m-%d %H:%M:%S", localtime(&time));
1.1 parser 140:
1.4 parser 141: String& string=*new(pool) String(pool);
142: string.APPEND_CLEAN(buf, size,
143: method_name.origin().file,
144: method_name.origin().line);
1.25 paf 145: r.write_assign_lang(string);
1.1 parser 146: }
147:
148:
149: static void _roll(Request& r, const String& method_name, MethodParams *params) {
150: Pool& pool=r.pool();
1.37 paf 151: VDate *vdate=static_cast<VDate *>(r.get_self());
1.1 parser 152:
153: const String& what=params->as_string(0, "'what' must be string");
1.43 paf 154: int oyear=0;
155: int omonth=0;
156: int oday=0;
1.1 parser 157: int *offset;
158: if(what=="year") offset=&oyear;
159: else if(what=="month") offset=&omonth;
160: else if(what=="day") offset=&oday;
161: else
1.22 paf 162: throw Exception("parser.runtime",
1.1 parser 163: &what,
164: "must be year|month|day");
165:
1.9 parser 166: *offset=params->as_int(1, "offset must be int", r);
1.1 parser 167:
1.13 paf 168: time_t self_time=vdate->get_time();
169: tm tmIn=*localtime(&self_time);
170: tm tmSaved=tmIn;
1.43 paf 171: int adjust_day=0;
172: time_t t_changed_date;
173: while(true) {
174: tmIn.tm_year+=oyear;
175: tmIn.tm_mon+=omonth;
176: tmIn.tm_mday+=oday+adjust_day;
177: tmIn.tm_hour=24/2;
178: tmIn.tm_min=0;
179: tmIn.tm_sec=0;
1.44 paf 180: int saved_mon=(tmIn.tm_mon+12*100)%12; // crossing year boundary backwards
1.43 paf 181: t_changed_date=mktime/*normalizetime*/(&tmIn);
182: if(t_changed_date<0)
183: throw Exception(0,
184: &method_name,
185: "bad resulting time (rolled out of valid date range)");
186: if(oday==0 && tmIn.tm_mon!=saved_mon) {
187: if(adjust_day <= -3/*31->28 max, so never, but...*/)
188: throw Exception(0,
189: &method_name,
190: "bad resulting time (day hole still with %d day adjustment)", adjust_day );
191:
192: tmIn=tmSaved; // restoring
193: --adjust_day; //retrying with prev day
194: } else
195: break;
196: }
1.13 paf 197:
1.43 paf 198: tm *tmOut=localtime(&t_changed_date);
1.13 paf 199: if(!tmOut)
1.22 paf 200: throw Exception(0,
1.1 parser 201: &method_name,
1.43 paf 202: "bad resulting time (seconds from epoch=%d)", t_changed_date);
1.13 paf 203:
1.43 paf 204: tmOut->tm_hour=tmSaved.tm_hour;
205: tmOut->tm_min=tmSaved.tm_min;
206: tmOut->tm_sec=tmSaved.tm_sec;
1.20 paf 207: tmOut->tm_isdst=-1;
1.13 paf 208: {
1.43 paf 209: time_t t_changed_time=mktime/*normalizetime*/(tmOut);
210: /*autofix: in msk timezone last sunday of april hour hole: [2am->3am)
1.21 paf 211: if(
212: tmOut->tm_hour!=tmSaved.tm_hour
213: ||tmOut->tm_min!=tmSaved.tm_min)
1.22 paf 214: throw Exception(0,
1.21 paf 215: &method_name,
1.24 paf 216: "bad resulting time (hour hole)");
1.43 paf 217: */
1.21 paf 218:
1.43 paf 219: if(t_changed_time<0)
1.22 paf 220: throw Exception(0,
1.21 paf 221: &method_name,
222: "bad resulting time (after reconstruction)");
1.13 paf 223:
1.43 paf 224: vdate->set_time(t_changed_time);
1.13 paf 225: }
1.1 parser 226: }
227:
1.10 parser 228: static Table *fill_month_days(Request& r,
1.45 ! paf 229: const String& method_name, MethodParams *params, bool rus){
1.10 parser 230: Pool& pool=r.pool();
1.45 ! paf 231: Table::Action_options table_options;
! 232: Table *result=new(pool) Table(pool, *date_calendar_table_template, table_options);
1.10 parser 233:
1.43 paf 234: int year=params->as_int(1, "year must be int", r);
235: int month=max(1, min(params->as_int(2, "month must be int", r), 12)) -1;
236:
237: tm tmIn={0, 0, 0, 1, month, year-1900};
238: time_t t=mktime(&tmIn);
1.10 parser 239: if(t<0)
1.22 paf 240: throw Exception(0,
1.10 parser 241: &method_name,
242: "invalid date");
1.43 paf 243: tm *tmOut=localtime(&t);
244:
245: int weekDay1=tmOut->tm_wday;
1.10 parser 246: if(rus)
247: weekDay1=weekDay1?weekDay1-1:6; //sunday last
1.43 paf 248: int monthDays=getMonthDays(year, month);
249:
250: for(int _day=1-weekDay1; _day<=monthDays;) {
1.10 parser 251: Array& row=*new(pool) Array(pool, 7);
1.34 paf 252: // calculating year week no [1..54]
253: char *weekno_buf;
254: size_t weekno_size;
1.36 paf 255: int weekyear;
1.34 paf 256: // 0..6 week days-cells fill with month days
1.43 paf 257: for(int wday=0; wday<7; wday++, _day++) {
1.34 paf 258: String *cell=new(pool) String(pool);
1.10 parser 259: if(_day>=1 && _day<=monthDays) {
260: char *buf=(char *)pool.malloc(2+1);
261: cell->APPEND_CLEAN(buf, sprintf(buf, "%02d", _day),
262: method_name.origin().file, method_name.origin().line);
263: }
264: row+=cell;
1.34 paf 265:
266: if(wday==(rus?3:4)/*thursday*/) {
267: tm tms={0,0,0, _day, month, year-1900};
268: /*normalize*/mktime(&tms);
269:
1.36 paf 270: weekyear=tms.tm_year+1900;
271:
1.35 paf 272: const int weekno_buf_size=2+1/*for stupid snprintfs*/ +1;
1.34 paf 273:
274: // http://www.merlyn.demon.co.uk/weekinfo.htm
275: 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};
1.36 paf 276: int n=1 + (tms.tm_yday-(FirstThurs[weekyear % 28]-3))/7;
1.34 paf 277: weekno_buf=(char *)pool.malloc(weekno_buf_size);
278: weekno_size=snprintf(weekno_buf, weekno_buf_size, "%02d", n);
279: }
280:
1.10 parser 281: }
1.34 paf 282: // appending year week no
283: {
284: String *cell=new(pool) String(pool);
285: cell->APPEND_CLEAN(weekno_buf, weekno_size,
1.36 paf 286: method_name.origin().file, method_name.origin().line);
287: row+=cell;
288: }
289: // appending year week year
290: {
291: String *cell=new(pool) String(pool);
292: char *buf=(char *)pool.malloc(4+1);
293: cell->APPEND_CLEAN(buf, sprintf(buf, "%02d", weekyear),
1.34 paf 294: method_name.origin().file, method_name.origin().line);
295: row+=cell;
296: }
1.10 parser 297: *result+=&row;
298: }
299:
300: return result;
301: }
302:
303: static Table *fill_week_days(Request& r,
304: const String& method_name, MethodParams *params, bool rus){
305: Pool& pool=r.pool();
306: Array& columns=*new(pool) Array(pool, 4);
1.18 paf 307: columns+=new(pool) String(pool, "year");
308: columns+=new(pool) String(pool, "month");
309: columns+=new(pool) String(pool, "day");
1.19 paf 310: columns+=new(pool) String(pool, "weekday");
1.10 parser 311: Table *result=new(pool) Table(pool, &method_name, &columns);
312:
313: int year=params->as_int(1, "year must be int", r);
314: int month=max(1, min(params->as_int(2, "month must be int", r), 12)) -1;
315: int day=params->as_int(3, "day must be int", r);
316:
317: tm tmIn={0, 0, 18, day, month, year-1900};
318: time_t t=mktime(&tmIn);
319: if(t<0)
1.22 paf 320: throw Exception(0,
1.10 parser 321: &method_name,
322: "invalid date");
323: tm *tmOut=localtime(&t);
324:
325: int baseWeekDay=tmOut->tm_wday;
326: if(rus)
327: baseWeekDay=baseWeekDay?baseWeekDay-1:6; //sunday last
328:
329: t-=baseWeekDay*SECS_PER_DAY;
330:
331: for(int curWeekDay=0; curWeekDay<7; curWeekDay++, t+=SECS_PER_DAY) {
332: tm *tmOut=localtime(&t);
333: Array& row=*new(pool) Array(pool, 4);
334: #define WDFILL(size, value) { \
335: char *buf=(char *)pool.malloc(size+1); \
336: String *cell=new(pool) String(pool); \
337: cell->APPEND_CLEAN(buf, sprintf(buf, "%0"#size"d", value), \
338: method_name.origin().file, \
339: method_name.origin().line); \
340: row+=cell; \
341: }
342: WDFILL(4, 1900+tmOut->tm_year);
343: WDFILL(2, 1+tmOut->tm_mon);
344: WDFILL(2, tmOut->tm_mday);
345: WDFILL(2, tmOut->tm_wday);
346: *result+=&row;
347: }
348:
349: return result;
350: }
351:
352: static void _calendar(Request& r, const String& method_name, MethodParams *params) {
353: Pool& pool=r.pool();
354:
355: const String& what=params->as_string(0, "format must be strig");
356: bool rus=false;
357: if(what=="rus")
358: rus=true;
359: else if(what=="eng")
360: rus=false;
361: else
1.22 paf 362: throw Exception("parser.runtime",
1.10 parser 363: &what,
364: "must be rus|eng");
365:
366: Table *table;
367: if(params->size()==1+2)
368: table=fill_month_days(r, method_name, params, rus);
369: else // 1+3
370: table=fill_week_days(r, method_name, params, rus);
371:
372: VTable& result=*new(pool) VTable(pool, table);
373: r.write_no_lang(result);
374: }
375:
1.1 parser 376: // constructor
377:
1.27 paf 378: MDate::MDate(Pool& apool) : Methoded(apool, "date") {
1.1 parser 379: // ^now[]
1.23 paf 380: add_native_method("now", Method::CT_DYNAMIC, _now, 0, 1);
1.1 parser 381:
1.30 paf 382: // ^create(float days)
1.17 paf 383: add_native_method("create", Method::CT_DYNAMIC, _create, 1, 6);
1.28 paf 384: // old name for compatibility with <= v1.17 2002/2/18 12:13:42 paf
1.17 paf 385: add_native_method("set", Method::CT_DYNAMIC, _create, 1, 6);
1.1 parser 386:
1.6 parser 387: // ^sql-string[]
1.5 parser 388: add_native_method("sql-string", Method::CT_DYNAMIC, _sql_string, 0, 0);
1.1 parser 389:
390: // ^roll(year|month|day;+/- 1)
391: add_native_method("roll", Method::CT_DYNAMIC, _roll, 2, 2);
1.10 parser 392:
393: // ^date:calendar[month|montheng;year;month] = table
394: // ^date:calendar[week|weekeng;year;month;day] = table
395: add_native_method("calendar", Method::CT_STATIC, _calendar, 3, 4);
1.1 parser 396:
397: }
398: // global variable
399:
400: Methoded *date_class;
401:
402: // creator
403:
404: Methoded *MDate_create(Pool& pool) {
405: return date_class=new(pool) MDate(pool);
406: }
E-mail:
![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to date.C CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [parser3project] / parser3 / src / classes