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Annotation of parser3/src/types/pa_vdate.h, revision 1.4

1.1       parser      1: /** @file
                      2:        Parser: @b date parser class decl.
                      3: 
                      4:        Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com)
                      5: 
                      6:        Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)
                      7: 
1.4     ! parser      8:        $Id: pa_vdate.h,v 1.3.4.1 2001/09/20 07:47:50 parser Exp $
1.1       parser      9: */
                     10: 
                     11: #ifndef PA_VDATE_H
                     12: #define PA_VDATE_H
                     13: 
                     14: #include "classes.h"
                     15: #include "pa_common.h"
                     16: #include "pa_vstateless_object.h"
                     17: #include "pa_vint.h"
                     18: 
                     19: extern Methoded *date_class;
                     20: 
                     21: /// value of type 'date'. implemented with @c time_t
                     22: class VDate : public VStateless_object {
                     23: public: // Value
                     24: 
                     25:        const char *type() const { return "date"; }
                     26:        /// VDate: ftime -> float days
                     27:        Value *as_expr_result(bool return_string_as_is=false) {
                     28:                return NEW VDouble(pool(), as_double());
                     29:        }
                     30: 
                     31:        /// VDate: ftime -> float days
1.4     ! parser     32:        double as_double() const { return ((double)ftime)/ SECS_PER_DAY; }
1.1       parser     33:        /// VDate: 0 or !0
1.4     ! parser     34:        bool as_bool() const { return ftime!=0; }
1.1       parser     35: 
                     36: 
1.3       parser     37:        /// VDate: CLASS,method,field
1.1       parser     38:        Value *get_element(const String& aname) {
1.3       parser     39:                // $CLASS,$method
1.1       parser     40:                if(Value *result=VStateless_object::get_element(aname))
                     41:                        return result;
                     42: 
                     43:                // $year month day  hour minute second  weekday
                     44:                tm *tmOut=localtime(&ftime);
                     45:                int result;
                     46:                if(aname=="year") result=1900+tmOut->tm_year;
                     47:                else if(aname=="month") result=1+tmOut->tm_mon;
                     48:                else if(aname=="day") result=tmOut->tm_mday;
                     49:                else if(aname=="hour") result=tmOut->tm_hour;
                     50:                else if(aname=="minute") result=tmOut->tm_min;
                     51:                else if(aname=="second") result=tmOut->tm_sec;
                     52:                else if(aname=="weekday") result=tmOut->tm_wday;
                     53:                else return 0;
                     54:                return NEW VInt(pool(), result);
                     55:        }
                     56: 
                     57: protected: // VAliased
                     58: 
                     59:        /// disable .CLASS element. @see VAliased::get_element
                     60:        bool hide_class() { return true; }
                     61: 
                     62: public: // usage
                     63: 
                     64:        VDate(Pool& apool, time_t adate) : VStateless_object(apool, *date_class), 
                     65:                ftime(adate) {
                     66:        }
                     67: 
                     68:        time_t get_time() { return ftime; }
                     69:        void set_time(time_t atime) { ftime=atime; }
                     70: 
                     71: private:
                     72: 
                     73:        time_t ftime;
                     74: 
                     75: };
                     76: 
                     77: #endif