source: tags/Mars-V0.10.3/mdata/MDataPhrase.h

Last change on this file was 8077, checked in by tbretz, 18 years ago
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1#ifndef MARS_MDataPhrase
2#define MARS_MDataPhrase
3
4#ifndef ROOT_TObjArray
5#include <TObjArray.h>
6#endif
7
8#ifndef MARS_MData
9#include "MData.h"
10#endif
11
12#ifndef MARS_MArrayD
13#include "MArrayD.h"
14#endif
15
16class TFormula;
17class MParList;
18
19
20class MDataPhrase : public MData
21{
22private:
23 TFormula *fFormula; // TFormula (its a pointer to be able to have no expression)
24 TObjArray fMembers; // List of arguments
25
26 MArrayD fStorage; //! Temporary storage used in GetValue (only!)
27
28 Int_t CheckForVariable(const TString &phrase, Int_t idx);
29 Int_t Substitute(TString &phrase, const TString &expr, Int_t idx) const;
30 TString Parse(TString phrase);
31
32public:
33 MDataPhrase(const char *rule=0, const char *name=0, const char *title=0);
34 MDataPhrase(MDataPhrase &ts);
35 ~MDataPhrase();
36
37 // TObject
38 void Clear(Option_t *o="");
39
40 // MParContainer
41 Bool_t IsReadyToSave() const;
42 void SetVariables(const TArrayD &arr);
43 Int_t ReadEnv(const TEnv &env, TString prefix, Bool_t print=kFALSE);
44
45 // MData
46 Bool_t IsValid() const;
47 Double_t GetValue() const;
48 TString GetRule() const;
49 Bool_t PreProcess(const MParList *plist);
50 // void Print(Option_t *opt = "") const;
51 // TString GetDataMember() const;
52
53 // MDataPhrase
54 Bool_t GetBool() const { return TMath::Nint(GetValue())!=0; }
55 Bool_t SetRule(const TString &phrase);
56
57 ClassDef(MDataPhrase, 1) // MDataPhrase is basically a mapper for TFormula supporting Mars features
58};
59
60#endif
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