Annotation of parser3/src/classes/double.C, revision 1.60
1.20 paf 1: /** @file
2: Parser: @b double parser class.
3:
1.58 paf 4: Copyright (c) 2001-2005 ArtLebedev Group (http://www.artlebedev.com)
1.43 paf 5: Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
1.48 paf 6: */
1.20 paf 7:
1.60 ! misha 8: static const char * const IDENT_DOUBLE_C="$Date: 2005/08/26 11:12:45 $";
1.1 paf 9:
1.24 paf 10: #include "classes.h"
1.54 paf 11: #include "pa_vmethod_frame.h"
12:
1.1 paf 13: #include "pa_request.h"
14: #include "pa_vdouble.h"
15: #include "pa_vint.h"
1.60 ! misha 16: #include "pa_vbool.h"
1.1 paf 17:
1.22 paf 18: // externs
1.1 paf 19:
1.54 paf 20: void _string_format(Request& r, MethodParams&);
1.22 paf 21:
22: // class
23:
1.54 paf 24: class MDouble: public Methoded {
1.22 paf 25: public:
1.54 paf 26: MDouble();
1.26 paf 27: public: // Methoded
1.30 parser 28: bool used_directly() { return true; }
1.22 paf 29: };
1.1 paf 30:
1.54 paf 31: // global variable
32:
33: DECLARE_CLASS_VAR(double, new MDouble, 0);
34:
1.1 paf 35: // methods
36:
1.54 paf 37: static void _int(Request& r, MethodParams& params) {
1.60 ! misha 38: // just checking (default) syntax validity, never really using it here, just for string.int compatibility
1.54 paf 39: if(params.count()>0)
1.59 paf 40: params.as_int(0, "default must be int", r);
1.45 paf 41:
1.54 paf 42: VDouble& vdouble=GET_SELF(r, VDouble);
43: r.write_no_lang(*new VInt(vdouble.as_int()));
1.1 paf 44: }
45:
1.54 paf 46: static void _double(Request& r, MethodParams& params) {
1.60 ! misha 47: // just checking (default) syntax validity, never really using it here, just for string.double compatibility
1.54 paf 48: if(params.count()>0)
1.59 paf 49: params.as_double(0, "default must be double", r);
1.45 paf 50:
1.54 paf 51: VDouble& vdouble=GET_SELF(r, VDouble);
52: r.write_no_lang(*new VDouble(vdouble.as_double()));
1.1 paf 53: }
54:
1.60 ! misha 55: static void _bool(Request& r, MethodParams& params) {
! 56: // just checking (default) syntax validity, never really using it here, just for string.bool compatibility
! 57: if(params.count()>0)
! 58: params.as_double(0, "default must be bool", r);
! 59:
! 60: VDouble& vdouble=GET_SELF(r, VDouble);
! 61: r.write_no_lang(*new VBool(vdouble.as_bool()));
! 62: }
! 63:
1.14 paf 64: typedef void (*vdouble_op_func_ptr)(VDouble& vdouble, double param);
65:
66: static void __inc(VDouble& vdouble, double param) { vdouble.inc(param); }
67: static void __dec(VDouble& vdouble, double param) { vdouble.inc(-param); }
68: static void __mul(VDouble& vdouble, double param) { vdouble.mul(param); }
69: static void __div(VDouble& vdouble, double param) { vdouble.div(param); }
70: static void __mod(VDouble& vdouble, double param) { vdouble.mod((int)param); }
71:
1.54 paf 72: static void vdouble_op(Request& r, MethodParams& params,
1.14 paf 73: vdouble_op_func_ptr func) {
1.54 paf 74: VDouble& vdouble=GET_SELF(r, VDouble);
75: double param=params.count()?
76: params.as_double(0, "param must be double", r):1/*used in inc/dec*/;
77: (*func)(vdouble, param);
1.1 paf 78: }
79:
1.54 paf 80: static void _inc(Request& r, MethodParams& params) { vdouble_op(r, params, &__inc); }
81: static void _dec(Request& r, MethodParams& params) { vdouble_op(r, params, &__dec); }
82: static void _mul(Request& r, MethodParams& params) { vdouble_op(r, params, &__mul); }
83: static void _div(Request& r, MethodParams& params) { vdouble_op(r, params, &__div); }
84: static void _mod(Request& r, MethodParams& params) { vdouble_op(r, params, &__mod); }
1.16 paf 85:
1.29 parser 86: // from string.C
87: extern
1.54 paf 88: const String* sql_result_string(Request& r, MethodParams& params,
89: HashStringValue*& options, Value*& default_code);
1.29 parser 90:
1.54 paf 91: static void _sql(Request& r, MethodParams& params) {
1.35 parser 92: double val;
1.54 paf 93: HashStringValue* options;
94: Value* default_code;
95: if(const String* string=sql_result_string(r, params, options, default_code))
1.35 parser 96: val=string->as_double();
97: else
1.39 parser 98: if(default_code)
1.46 paf 99: val=r.process_to_value(*default_code).as_double();
1.39 parser 100: else {
1.44 paf 101: throw Exception("parser.runtime",
1.54 paf 102: 0,
1.39 parser 103: "produced no result, but no default option specified");
1.35 parser 104: }
1.54 paf 105: r.write_no_lang(*new VDouble(val));
1.29 parser 106: }
107:
1.22 paf 108: // constructor
109:
1.54 paf 110: MDouble::MDouble(): Methoded("double") {
1.9 paf 111: // ^double.int[]
1.45 paf 112: add_native_method("int", Method::CT_DYNAMIC, _int, 0, 1);
1.9 paf 113:
114: // ^double.double[]
1.45 paf 115: add_native_method("double", Method::CT_DYNAMIC, _double, 0, 1);
1.60 ! misha 116:
! 117: // ^double.bool[]
! 118: add_native_method("bool", Method::CT_DYNAMIC, _bool, 0, 1);
1.9 paf 119:
1.14 paf 120: // ^double.inc[]
1.9 paf 121: // ^double.inc[offset]
1.22 paf 122: add_native_method("inc", Method::CT_DYNAMIC, _inc, 0, 1);
1.14 paf 123: // ^double.dec[]
124: // ^double.dec[offset]
1.22 paf 125: add_native_method("dec", Method::CT_DYNAMIC, _dec, 0, 1);
1.14 paf 126: // ^double.mul[k]
1.22 paf 127: add_native_method("mul", Method::CT_DYNAMIC, _mul, 1, 1);
1.14 paf 128: // ^double.div[d]
1.22 paf 129: add_native_method("div", Method::CT_DYNAMIC, _div, 1, 1);
1.14 paf 130: // ^double.mod[offset]
1.22 paf 131: add_native_method("mod", Method::CT_DYNAMIC, _mod, 1, 1);
1.12 paf 132:
1.20 paf 133: // ^double.format{format}
1.22 paf 134: add_native_method("format", Method::CT_DYNAMIC, _string_format, 1, 1);
1.29 parser 135:
1.36 parser 136: // ^sql[query]
137: // ^sql[query][$.limit(1) $.offset(2) $.default(0.0)]
1.34 parser 138: add_native_method("sql", Method::CT_STATIC, _sql, 1, 2);
1.1 paf 139: }
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