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da0e9ce3 | 1 | //-------------------------------------------------------------------------- |
2 | // | |
3 | // Environment: | |
4 | // This software is part of the EvtGen package developed jointly | |
5 | // for the BaBar and CLEO collaborations. If you use all or part | |
6 | // of it, please give an appropriate acknowledgement. | |
7 | // | |
8 | // Copyright Information: See EvtGen/COPYRIGHT | |
9 | // Copyright (C) 1998 Caltech, UCSB | |
10 | // | |
11 | // Module: EvtParser.cc | |
12 | // | |
13 | // Description: Reading the decay table and produce a list of tokens. | |
14 | // | |
15 | // Modification history: | |
16 | // | |
17 | // RYD Febuary 11, 1998 Module created | |
18 | // | |
19 | //------------------------------------------------------------------------ | |
20 | // | |
21 | #include "EvtGenBase/EvtPatches.hh" | |
22 | #include "EvtGenBase/EvtPatches.hh" | |
23 | #include <fstream> | |
24 | #include <sstream> | |
25 | #include <string.h> | |
26 | #include "EvtGenBase/EvtParser.hh" | |
27 | #include "EvtGenBase/EvtReport.hh" | |
28 | using namespace std; | |
29 | ||
30 | #define MAXBUF 1024 | |
31 | ||
32 | EvtParser::EvtParser(){ | |
33 | _ntoken=0; | |
34 | _lengthoftokenlist=0; | |
35 | _tokenlist=0; | |
36 | _linelist=0; | |
37 | } | |
38 | ||
39 | EvtParser::~EvtParser(){ | |
40 | ||
41 | delete [] _tokenlist; | |
42 | delete [] _linelist; | |
43 | ||
44 | } | |
45 | ||
46 | ||
47 | int EvtParser::getNToken(){ | |
48 | ||
49 | return _ntoken; | |
50 | ||
51 | } | |
52 | ||
53 | const std::string& EvtParser::getToken(int i){ | |
54 | ||
55 | return _tokenlist[i]; | |
56 | ||
57 | } | |
58 | ||
59 | int EvtParser::getLineofToken(int i){ | |
60 | ||
61 | return _linelist[i]; | |
62 | ||
63 | } | |
64 | ||
65 | int EvtParser::read(const std::string filename){ | |
66 | ifstream fin; | |
67 | ||
68 | fin.open(filename.c_str()); | |
69 | if (!fin) { | |
70 | report(ERROR,"EvtGen") << "Could not open file '"<<filename.c_str()<<"'"<<endl; | |
71 | return -1; | |
72 | } | |
73 | ||
74 | char buf[MAXBUF]; | |
75 | char buf2[MAXBUF]; | |
76 | char c; | |
77 | ||
78 | int line=0; | |
79 | int i; | |
80 | ||
81 | while(fin.peek() != EOF){ | |
82 | line++; | |
83 | ||
84 | i=0; | |
85 | while((c=fin.get()) != '\n' && i<MAXBUF) { | |
86 | buf[i]=c; | |
87 | i++; | |
88 | } | |
89 | if(i==MAXBUF) { | |
90 | report(ERROR,"EvtGen") << "Error in EvtParser: line:" | |
91 | <<line<<" to long"<<endl; | |
92 | } | |
93 | else { | |
94 | buf[i] = '\0'; | |
95 | } | |
96 | ||
97 | //search for '#' which indicates comment for rest of line! | |
98 | i=0; | |
99 | do{ | |
100 | if (buf[i]=='#') buf[i]=0; | |
101 | i++; | |
102 | }while(buf[i-1]!=0); | |
103 | ||
104 | string tmp(buf,strlen(buf)); | |
105 | ||
106 | //read each token | |
107 | istringstream ist(tmp); | |
108 | while(ist>>buf2){ | |
109 | i=0; | |
110 | int semicolon=0; | |
111 | do{ | |
112 | if (buf2[i]==';') { | |
113 | buf2[i]=0; | |
114 | semicolon=1; | |
115 | } | |
116 | }while(buf2[i++]!=0); | |
117 | if (buf2[0]!=0){ | |
118 | addToken(line,buf2); | |
119 | } | |
120 | if (semicolon) addToken(line,";"); | |
121 | } | |
122 | } | |
123 | ||
124 | fin.close(); | |
125 | ||
126 | return 0; | |
127 | ||
128 | } | |
129 | ||
130 | ||
131 | ||
132 | void EvtParser::addToken(int line,const std::string& string){ | |
133 | ||
134 | //report(INFO,"EvtGen") <<_ntoken<<" "<<line<<" "<<string<<endl; | |
135 | ||
136 | if (_ntoken==_lengthoftokenlist) { | |
137 | ||
138 | int new_length=1000+4*_lengthoftokenlist; | |
139 | ||
140 | ||
141 | ||
142 | int* newlinelist= new int[new_length]; | |
143 | std::string* newtokenlist= new std::string[new_length]; | |
144 | ||
145 | int i; | |
146 | ||
147 | for(i=0;i<_ntoken;i++){ | |
148 | newlinelist[i]=_linelist[i]; | |
149 | newtokenlist[i]=_tokenlist[i]; | |
150 | } | |
151 | ||
152 | delete [] _tokenlist; | |
153 | delete [] _linelist; | |
154 | ||
155 | _tokenlist=newtokenlist; | |
156 | _linelist=newlinelist; | |
157 | ||
158 | _lengthoftokenlist=new_length; | |
159 | ||
160 | } | |
161 | ||
162 | ||
163 | _tokenlist[_ntoken]=string; | |
164 | ||
165 | _linelist[_ntoken]=line; | |
166 | ||
167 | _ntoken++; | |
168 | ||
169 | //report(INFO,"EvtGen") << "First:"<<_tokenlist[0]<<" last:"<<_tokenlist[_ntoken-1]<<endl; | |
170 | ||
171 | } | |
172 |