Geant4  9.6.p02
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G4Tokenizer.hh
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27 // $Id$
28 //
29 //
30 //---------------------------------------------------------------
31 // GEANT 4 class header file
32 //
33 // G4Tokenizer
34 //
35 // Class description:
36 //
37 // String tokenizer.
38 // It derives from the implementation of the Rogue Wave
39 // RWTokenizer. It intrinsically uses STL string.
40 
41 //---------------------------------------------------------------
42 
43 #ifndef __G4Tokenizer
44 #define __G4Tokenizer
45 
46 #include "G4String.hh"
47 
49 {
50 public:
51  G4Tokenizer(const G4String& stn):string2tokenize(stn),actual(0){}
52 
53  G4SubString operator()(const char* str=" \t\n",size_t l=0)
54  {
55  size_t i,j,tmp;
56  G4bool hasws=false;
57  if(l==0) l=strlen(str);
58  //Skip leading delimeters
59  while(actual<string2tokenize.size())
60  {
61 
62  for(i=0;i<l;i++)
63  if(string2tokenize[actual]==str[i]) hasws=true;
64  if(hasws)
65  {
66  actual++;
67  hasws=false;
68  }
69  else
70  break;
71  }
72 
73  for(j=actual;j<string2tokenize.size();j++)
74  {
75  for(i=0;i<l;i++)
76  if(string2tokenize[j]==str[i]) break;
77  if(i<l) break;
78  }
79  if(j!=string2tokenize.size())
80  {
81  tmp=actual;
82  actual=j+1;
83  return string2tokenize(tmp,j-tmp);
84  }
85  else
86  {
87  tmp=actual;
88  actual=j;
89  return string2tokenize(tmp,j-tmp);
90  }
91  }
92 
93 private:
94 
95  G4String string2tokenize;
96  size_t actual;
97 
98 };
99 
100 #endif
101