Annotation of parser3/src/types/pa_vstring.h, revision 1.8
1.1 paf 1: /*
2: Parser
3: Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com)
1.2 paf 4: Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)
1.1 paf 5:
1.8 ! paf 6: $Id: pa_vstring.h,v 1.7 2001/03/15 09:37:57 paf Exp $
1.1 paf 7: */
8:
9: #ifndef PA_VSTRING_H
10: #define PA_VSTRING_H
11:
12: #include <stdlib.h>
13:
1.4 paf 14: #include "pa_vstateless_object.h"
1.1 paf 15: #include "pa_vdouble.h"
16: #include "_string.h"
17:
1.4 paf 18: class VString : public VStateless_object {
1.1 paf 19: public: // Value
20:
21: // all: for error reporting after fail(), etc
22: const char *type() const { return "string"; }
23: // string: fvalue as VDouble
24: Value *get_expr_result() { return NEW VDouble(pool(), get_double()); }
25: // string: fvalue
26: const String *get_string() { return &fvalue; };
27: // string: fvalue
1.6 paf 28: double get_double() {
29: double result;
30: const char *cstr=fvalue.cstr();
31: char *error_pos=0;
1.8 ! paf 32: // 0xABC
! 33: if(cstr[0]=='0' && (cstr[1]=='x' || cstr[1]=='X'))
1.6 paf 34: result=(double)strtoul(cstr, &error_pos, 0);
35: else
36: result=strtod(cstr, &error_pos);
37:
1.8 ! paf 38: if(error_pos&&*error_pos)
! 39: THROW(0, 0,
! 40: &fvalue,
! 41: "invalid number");
! 42:
! 43: //return error_pos&&*error_pos?0:result;
! 44: return result;
1.6 paf 45: }
1.1 paf 46: // string: empty or not
47: bool get_bool() { return fvalue.size()!=0; };
48:
49: public: // usage
50:
1.4 paf 51: VString(Pool& apool) : VStateless_object(apool, *string_class),
1.5 paf 52: fvalue(*new(apool) String(apool)) {
1.1 paf 53: }
54:
1.4 paf 55: VString(const String& avalue) : VStateless_object(avalue.pool(), *string_class),
1.1 paf 56: fvalue(avalue) {
57: }
58:
59: const String& value() { return fvalue; }
60:
61: private:
62: const String& fvalue;
63:
64: };
65:
66: #endif
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