Annotation of parser3/src/classes/date.C, revision 1.2
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:
1.2 ! parser 8: $Id: date.C,v 1.1 2001/07/07 16:38:01 parser Exp $
1.1 parser 9: */
1.2 ! parser 10: static const char *RCSId="$Id: date.C,v 1.1 2001/07/07 16:38:01 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;
54: tmIn.tm_year=year;
55: tmIn.tm_mon=params->as_int(1, r)-1;
56: tmIn.tm_mday=params->as_int(2, r);
57: if(params->size()>3) tmIn.tm_hour=params->as_int(3, r);
58: if(params->size()>4) tmIn.tm_min=params->as_int(4, r);
59: if(params->size()>5) tmIn.tm_sec=params->as_int(5, r);
60: time=mktime(&tmIn);
61: if(time<0)
62: PTHROW(0, 0,
63: &method_name,
64: "invalid datetime");
65: } else
66: PTHROW(0, 0,
67: &method_name,
68: "invalid params count, must be 1 or >=3");
69: vdate->set_time(time);
70: }
71:
72: static void _string(Request& r, const String& method_name, MethodParams *) {
73: Pool& pool=r.pool();
74: VDate *vdate=static_cast<VDate *>(r.self);
1.2 ! parser 75: int size=1+ 4+1+2+1+2 +1+ 2+1+2+1+2 +1 +1;
1.1 parser 76: char *buf=(char *)pool.malloc(size);
77: time_t time=vdate->get_time();
1.2 ! parser 78: size=strftime(buf, size, "'%Y-%m-%d %H:%M:%S'", gmtime(&time));
1.1 parser 79:
80: Value& result=*new(pool) VString(*new(pool) String(pool, buf, size));
81: r.write_assign_lang(result);
82: }
83:
84:
85: static void _roll(Request& r, const String& method_name, MethodParams *params) {
86: Pool& pool=r.pool();
87: VDate *vdate=static_cast<VDate *>(r.self);
88:
89: const String& what=params->as_string(0, "'what' must be string");
90: int oyear=0;
91: int omonth=0;
92: int oday=0;
93: int *offset;
94: if(what=="year") offset=&oyear;
95: else if(what=="month") offset=&omonth;
96: else if(what=="day") offset=&oday;
97: else
98: PTHROW(0, 0,
99: &what,
100: "must be year|month|day");
101:
102: *offset=params->as_int(1, r);
103: if(!(*offset==1 || *offset==-1))
104: PTHROW(0, 0,
105: &method_name,
106: "offset must be +/- 1");
107:
108: time_t tIn=vdate->get_time();
109: tm *tmIn=localtime(&tIn);
110: tmIn->tm_year+=oyear;
111: time_t t=mktime(tmIn);
112: if(t<0)
113: PTHROW(0, 0,
114: &method_name,
115: "invalid datetime");
116: t+=omonth*getMonthDays(tmIn->tm_year, (tmIn->tm_mon+(omonth<0?-1:0)+12)%12)*SECS_PER_DAY;
117: t+=oday*SECS_PER_DAY;
118: vdate->set_time(t);
119: }
120:
121: // constructor
122:
123: MDate::MDate(Pool& apool) : Methoded(apool) {
124: set_name(*NEW String(pool(), DATE_CLASS_NAME));
125:
126:
127: // ^now[]
128: add_native_method("now", Method::CT_DYNAMIC, _now, 0, 0);
129:
130: // ^set(float days)
131: add_native_method("set", Method::CT_DYNAMIC, _set, 1, 6);
132:
133: // ^string[]
134: add_native_method("string", Method::CT_DYNAMIC, _string, 0, 0);
135:
136: // ^roll(year|month|day;+/- 1)
137: add_native_method("roll", Method::CT_DYNAMIC, _roll, 2, 2);
138:
139: }
140: // global variable
141:
142: Methoded *date_class;
143:
144: // creator
145:
146: Methoded *MDate_create(Pool& pool) {
147: return date_class=new(pool) MDate(pool);
148: }
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