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Annotation of parser3/src/types/pa_vdate.h, revision 1.11

1.1       parser      1: /** @file
                      2:        Parser: @b date parser class decl.
                      3: 
1.7       paf         4:        Copyright (c) 2001, 2002 ArtLebedev Group (http://www.artlebedev.com)
1.8       paf         5:        Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
1.1       parser      6: */
                      7: 
                      8: #ifndef PA_VDATE_H
                      9: #define PA_VDATE_H
1.11    ! paf        10: 
        !            11: static const char* IDENT_VDATE_H="$Id: zzz $";
1.1       parser     12: 
                     13: #include "classes.h"
                     14: #include "pa_common.h"
                     15: #include "pa_vstateless_object.h"
                     16: #include "pa_vint.h"
                     17: 
1.9       paf        18: // defines
                     19: 
                     20: #define VDATE_TYPE "date"
                     21: 
                     22: // externs
                     23: 
1.1       parser     24: extern Methoded *date_class;
                     25: 
                     26: /// value of type 'date'. implemented with @c time_t
                     27: class VDate : public VStateless_object {
                     28: public: // Value
                     29: 
1.9       paf        30:        const char *type() const { return VDATE_TYPE; }
1.10      paf        31:        VStateless_class *get_class() { return date_class; }
                     32:        
1.1       parser     33:        /// VDate: ftime -> float days
                     34:        Value *as_expr_result(bool return_string_as_is=false) {
                     35:                return NEW VDouble(pool(), as_double());
                     36:        }
                     37: 
                     38:        /// VDate: ftime -> float days
1.4       parser     39:        double as_double() const { return ((double)ftime)/ SECS_PER_DAY; }
1.1       parser     40:        /// VDate: 0 or !0
1.4       parser     41:        bool as_bool() const { return ftime!=0; }
1.1       parser     42: 
                     43: 
1.3       parser     44:        /// VDate: CLASS,method,field
1.1       parser     45:        Value *get_element(const String& aname) {
1.3       parser     46:                // $CLASS,$method
1.1       parser     47:                if(Value *result=VStateless_object::get_element(aname))
                     48:                        return result;
                     49: 
                     50:                // $year month day  hour minute second  weekday
                     51:                tm *tmOut=localtime(&ftime);
                     52:                int result;
                     53:                if(aname=="year") result=1900+tmOut->tm_year;
                     54:                else if(aname=="month") result=1+tmOut->tm_mon;
                     55:                else if(aname=="day") result=tmOut->tm_mday;
                     56:                else if(aname=="hour") result=tmOut->tm_hour;
                     57:                else if(aname=="minute") result=tmOut->tm_min;
                     58:                else if(aname=="second") result=tmOut->tm_sec;
                     59:                else if(aname=="weekday") result=tmOut->tm_wday;
                     60:                else return 0;
                     61:                return NEW VInt(pool(), result);
                     62:        }
                     63: 
                     64: protected: // VAliased
                     65: 
                     66:        /// disable .CLASS element. @see VAliased::get_element
                     67:        bool hide_class() { return true; }
                     68: 
                     69: public: // usage
                     70: 
1.10      paf        71:        VDate(Pool& apool, time_t adate) : VStateless_object(apool), 
1.1       parser     72:                ftime(adate) {
                     73:        }
                     74: 
                     75:        time_t get_time() { return ftime; }
                     76:        void set_time(time_t atime) { ftime=atime; }
                     77: 
                     78: private:
                     79: 
                     80:        time_t ftime;
                     81: 
                     82: };
                     83: 
                     84: #endif