Converting TEvtGen to native cmake

[u/mrichter/AliRoot.git] / TEvtGen / EvtGen / EvtGenBase / EvtParser.cpp

diff --git a/TEvtGen/EvtGen/EvtGenBase/EvtParser.cpp b/TEvtGen/EvtGen/EvtGenBase/EvtParser.cpp
new file mode 100644 (file)
index 0000000..1f23b83
--- /dev/null
+++ b/TEvtGen/EvtGen/EvtGenBase/EvtParser.cpp
@@ -0,0 +1,172 @@
+//--------------------------------------------------------------------------
+//
+// Environment:
+//      This software is part of the EvtGen package developed jointly
+//      for the BaBar and CLEO collaborations.  If you use all or part
+//      of it, please give an appropriate acknowledgement.
+//
+// Copyright Information: See EvtGen/COPYRIGHT
+//      Copyright (C) 1998      Caltech, UCSB
+//
+// Module: EvtParser.cc
+//
+// Description: Reading the decay table and produce a list of tokens.
+//
+// Modification history:
+//
+//    RYD     Febuary 11, 1998        Module created
+//
+//------------------------------------------------------------------------
+// 
+#include "EvtGenBase/EvtPatches.hh"
+#include "EvtGenBase/EvtPatches.hh"
+#include <fstream>
+#include <sstream>
+#include <string.h>
+#include "EvtGenBase/EvtParser.hh"
+#include "EvtGenBase/EvtReport.hh"
+using namespace std;
+
+#define MAXBUF 1024
+
+EvtParser::EvtParser(){
+  _ntoken=0;
+  _lengthoftokenlist=0;
+  _tokenlist=0;
+  _linelist=0;
+}
+
+EvtParser::~EvtParser(){
+
+  delete [] _tokenlist;
+  delete [] _linelist;
+
+}
+
+
+int EvtParser::getNToken(){
+
+  return _ntoken;
+
+}
+
+const std::string& EvtParser::getToken(int i){
+
+  return _tokenlist[i];
+
+}
+
+int EvtParser::getLineofToken(int i){
+
+  return _linelist[i];
+
+}
+
+int EvtParser::read(const std::string filename){
+  ifstream fin;
+  
+  fin.open(filename.c_str());
+  if (!fin) {
+    report(ERROR,"EvtGen") << "Could not open file '"<<filename.c_str()<<"'"<<endl;
+    return -1;
+  }
+
+  char buf[MAXBUF];
+  char buf2[MAXBUF];
+  char c;
+
+  int line=0;
+  int i;
+
+  while(fin.peek() != EOF){
+    line++;
+    
+    i=0;
+    while((c=fin.get()) != '\n' && i<MAXBUF) {
+      buf[i]=c;
+      i++;
+    }
+    if(i==MAXBUF) {
+      report(ERROR,"EvtGen") << "Error in EvtParser: line:"
+                            <<line<<" to long"<<endl;
+    }
+    else {
+      buf[i] = '\0';
+    }
+    
+    //search for '#' which indicates comment for rest of line!
+    i=0;
+    do{
+      if (buf[i]=='#') buf[i]=0;
+      i++;
+    }while(buf[i-1]!=0);
+
+    string tmp(buf,strlen(buf));
+
+    //read each token
+    istringstream ist(tmp);
+    while(ist>>buf2){
+      i=0;
+      int semicolon=0;
+      do{
+       if (buf2[i]==';') {
+         buf2[i]=0;
+         semicolon=1;
+       }
+      }while(buf2[i++]!=0);
+      if (buf2[0]!=0){
+       addToken(line,buf2);
+      }
+      if (semicolon) addToken(line,";");
+    }
+  }
+
+  fin.close();
+
+  return 0;
+  
+}
+
+
+
+void EvtParser::addToken(int line,const std::string& string){
+
+  //report(INFO,"EvtGen") <<_ntoken<<" "<<line<<" "<<string<<endl;  
+
+  if (_ntoken==_lengthoftokenlist) {
+
+    int new_length=1000+4*_lengthoftokenlist;
+
+
+    
+    int*     newlinelist= new int[new_length];
+    std::string* newtokenlist= new std::string[new_length];
+  
+    int i;
+
+    for(i=0;i<_ntoken;i++){
+     newlinelist[i]=_linelist[i];
+     newtokenlist[i]=_tokenlist[i];
+    }
+
+    delete [] _tokenlist;
+    delete [] _linelist;
+
+    _tokenlist=newtokenlist;
+    _linelist=newlinelist;    
+
+    _lengthoftokenlist=new_length;
+
+  }
+
+
+  _tokenlist[_ntoken]=string;
+
+  _linelist[_ntoken]=line;
+ 
+  _ntoken++;  
+
+  //report(INFO,"EvtGen") << "First:"<<_tokenlist[0]<<" last:"<<_tokenlist[_ntoken-1]<<endl;
+
+}
+