Annotation of parser3/src/classes/date.C, revision 1.3
1.1 parser 1: /** @file
2: Parser: @b date parser class.
3:
4: Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com)
5:
6: Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)
7:
1.3 ! parser 8: $Id: date.C,v 1.2 2001/07/07 17:59:02 parser Exp $
1.1 parser 9: */
1.3 ! parser 10: static const char *RCSId="$Id: date.C,v 1.2 2001/07/07 17:59:02 parser Exp $";
1.1 parser 11:
12: #include "classes.h"
13: #include "pa_request.h"
14: #include "pa_vdouble.h"
15: #include "pa_vdate.h"
16:
17: // defines
18:
19: #define DATE_CLASS_NAME "date"
20:
21: // class
22:
23: class MDate : public Methoded {
24: public: // VStateless_class
25: Value *create_new_value(Pool& pool) { return new(pool) VDate(pool, 0); }
26:
27: public:
28: MDate(Pool& pool);
29: public: // Methoded
30: bool used_directly() { return true; }
31: };
32:
33: // methods
34:
35: static void _now(Request& r, const String& method_name, MethodParams *) {
36: Pool& pool=r.pool();
37: VDate *vdate=static_cast<VDate *>(r.self);
38: vdate->set_time(time(0));
39: }
40:
41: static void _set(Request& r, const String& method_name, MethodParams *params) {
42: Pool& pool=r.pool();
43: VDate *vdate=static_cast<VDate *>(r.self);
44:
45: time_t time;
46: if(params->size()==1) // ^set(float days)
47: time=(time_t)(params->as_double(0, r)*SECS_PER_DAY);
48: else if(params->size()>=3) { // ^set(y;m;d[;h[;m[;s]]])
49: tm tmIn={0};
50: tmIn.tm_isdst=-1;
51: int year=params->as_int(0, r);
52: if(year<70) // 0..69 -> 100..169 [2000..2069]
53: year+=100;
1.3 ! parser 54: if(year>=1900)
! 55: year-=1900;
1.1 parser 56: tmIn.tm_year=year;
57: tmIn.tm_mon=params->as_int(1, r)-1;
58: tmIn.tm_mday=params->as_int(2, r);
59: if(params->size()>3) tmIn.tm_hour=params->as_int(3, r);
60: if(params->size()>4) tmIn.tm_min=params->as_int(4, r);
61: if(params->size()>5) tmIn.tm_sec=params->as_int(5, r);
62: time=mktime(&tmIn);
63: if(time<0)
64: PTHROW(0, 0,
65: &method_name,
66: "invalid datetime");
67: } else
68: PTHROW(0, 0,
69: &method_name,
70: "invalid params count, must be 1 or >=3");
71: vdate->set_time(time);
72: }
73:
74: static void _string(Request& r, const String& method_name, MethodParams *) {
75: Pool& pool=r.pool();
76: VDate *vdate=static_cast<VDate *>(r.self);
1.2 parser 77: int size=1+ 4+1+2+1+2 +1+ 2+1+2+1+2 +1 +1;
1.1 parser 78: char *buf=(char *)pool.malloc(size);
79: time_t time=vdate->get_time();
1.2 parser 80: size=strftime(buf, size, "'%Y-%m-%d %H:%M:%S'", gmtime(&time));
1.1 parser 81:
82: Value& result=*new(pool) VString(*new(pool) String(pool, buf, size));
83: r.write_assign_lang(result);
84: }
85:
86:
87: static void _roll(Request& r, const String& method_name, MethodParams *params) {
88: Pool& pool=r.pool();
89: VDate *vdate=static_cast<VDate *>(r.self);
90:
91: const String& what=params->as_string(0, "'what' must be string");
92: int oyear=0;
93: int omonth=0;
94: int oday=0;
95: int *offset;
96: if(what=="year") offset=&oyear;
97: else if(what=="month") offset=&omonth;
98: else if(what=="day") offset=&oday;
99: else
100: PTHROW(0, 0,
101: &what,
102: "must be year|month|day");
103:
104: *offset=params->as_int(1, r);
105: if(!(*offset==1 || *offset==-1))
106: PTHROW(0, 0,
107: &method_name,
108: "offset must be +/- 1");
109:
110: time_t tIn=vdate->get_time();
111: tm *tmIn=localtime(&tIn);
112: tmIn->tm_year+=oyear;
113: time_t t=mktime(tmIn);
114: if(t<0)
115: PTHROW(0, 0,
116: &method_name,
117: "invalid datetime");
118: t+=omonth*getMonthDays(tmIn->tm_year, (tmIn->tm_mon+(omonth<0?-1:0)+12)%12)*SECS_PER_DAY;
119: t+=oday*SECS_PER_DAY;
120: vdate->set_time(t);
121: }
122:
123: // constructor
124:
125: MDate::MDate(Pool& apool) : Methoded(apool) {
126: set_name(*NEW String(pool(), DATE_CLASS_NAME));
127:
128:
129: // ^now[]
130: add_native_method("now", Method::CT_DYNAMIC, _now, 0, 0);
131:
132: // ^set(float days)
133: add_native_method("set", Method::CT_DYNAMIC, _set, 1, 6);
134:
135: // ^string[]
136: add_native_method("string", Method::CT_DYNAMIC, _string, 0, 0);
137:
138: // ^roll(year|month|day;+/- 1)
139: add_native_method("roll", Method::CT_DYNAMIC, _roll, 2, 2);
140:
141: }
142: // global variable
143:
144: Methoded *date_class;
145:
146: // creator
147:
148: Methoded *MDate_create(Pool& pool) {
149: return date_class=new(pool) MDate(pool);
150: }
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