// @(#)root/main:$Name:  $:$Id: h2root.cxx,v 1.21 2004/02/24 15:02:50 brun Exp $
// Author: Rene Brun   20/09/96
/////////////////////////////////////////////////////////////////////////
//      Program to convert an HBOOK file into a ROOT file
//                      Author: Rene Brun
//
//  This program is invoked via:
//     h2root hbook_file_name root_file_name  compress tolower
//  if the second parameter root_file_name is missing the name will be
//  automatically generated from the hbook file name. Example:
//       h2root test.hbook
//     is identical to
//       h2root test.hbook test.root
//  if compress is missing (or = 1)the ROOT file will be compressed
//  if compress = 0 the ROOT file will not be compressed.
//  if tolower is missing (or = 1) ntuple column names are converted to lower case
//                but the first character is converted to upper case.
//  if tolower = 2 same as tolower=1 except that the first character is also
//                convertex to lower case
/////////////////////////////////////////////////////////////////////////

#include <stdlib.h>
#include <string.h>
#include <ctype.h>

#include "Riostream.h"
#include "TFile.h"
#include "TDirectory.h"
#include "TTree.h"
#include "TLeafI.h"
#include "TH1.h"
#include "TH2.h"
#include "TProfile.h"
#include "TGraph.h"
#include "TMath.h"
int Error;   //to be removed soon

//  Define the names of the Fortran common blocks for the different OSs

#ifndef WIN32
#define PAWC_SIZE 5000000
#  define pawc pawc_
#  define quest quest_
#  define hcbits hcbits_
#  define hcbook hcbook_
#  define rzcl rzcl_
int pawc[PAWC_SIZE];
int quest[100];
int hcbits[37];
int hcbook[51];
int rzcl[11];
#else
// on windows /pawc/ must have the same length as in libPacklib.a !!
#define PAWC_SIZE 2000000
#  define pawc   PAWC
#  define quest  QUEST
#  define hcbits HCBITS
#  define hcbook HCBOOK
#  define rzcl   RZCL
extern "C" int pawc[PAWC_SIZE];
extern "C" int quest[100];
extern "C" int hcbits[37];
extern "C" int hcbook[51];
extern "C" int rzcl[11];
#endif

int *iq, *lq;
float *q;
char idname[128];
int nentries;
char chtitl[128];
int ncx,ncy,nwt,idb;
int lcont, lcid, lcdir;
float xmin,xmax,ymin,ymax;
const Int_t kMIN1 = 7;
const Int_t kMAX1 = 8;

#if defined __linux
//On linux Fortran wants this, so we give to it!
int xargv=0;
int xargc=0;
void MAIN__() {}
#endif

//  Define the names of the Fortran subroutine and functions for the different OSs

#ifndef WIN32
# define hlimit  hlimit_
# define hropen  hropen_
# define hrin    hrin_
# define hnoent  hnoent_
# define hgive   hgive_
# define hgiven  hgiven_
# define hprntu  hprntu_
# define hgnpar  hgnpar_
# define hgnf    hgnf_
# define hgnt    hgnt_
# define rzink   rzink_
# define hdcofl  hdcofl_
# define hmaxim  hmaxim_
# define hminim  hminim_
# define hdelet  hdelet_
# define hntvar2 hntvar2_
# define hbname  hbname_
# define hbnamc  hbnamc_
# define hbnam   hbnam_
# define hi      hi_
# define hie     hie_
# define hif     hif_
# define hij     hij_
# define hix     hix_
# define hijxy   hijxy_
# define hije    hije_
# define hcdir   hcdir_
# define zitoh   zitoh_
# define uhtoc   uhtoc_

# define type_of_call
# define DEFCHAR  const char*
# define PASSCHAR(string) string
#else
# define hlimit  HLIMIT
# define hropen  HROPEN
# define hrin    HRIN
# define hnoent  HNOENT
# define hgive   HGIVE
# define hgiven  HGIVEN
# define hprntu  HPRNTU
# define hgnpar  HGNPAR
# define hgnf    HGNF
# define hgnt    HGNT
# define rzink   RZINK
# define hdcofl  HDCOFL
# define hmaxim  HMAXIM
# define hminim  HMINIM
# define hdelet  HDELET
# define hntvar2 HNTVAR2
# define hbname  HBNAME
# define hbnamc  HBNAMC
# define hbnam   HBNAM
# define hi      HI
# define hie     HIE
# define hif     HIF
# define hij     HIJ
# define hix     HIX
# define hijxy   HIJXY
# define hije    HIJE
# define hcdir   HCDIR
# define zitoh   ZITOH
# define uhtoc   UHTOC
# define type_of_call  _stdcall
# define DEFCHAR  const char*, const int
# define PASSCHAR(string) string, strlen(string)
#endif

extern "C" void  type_of_call hlimit(const int&);
#ifndef WIN32
extern "C" void  type_of_call hropen(const int&,DEFCHAR,DEFCHAR,DEFCHAR,
                        const int&,const int&,const int,const int,const int);
#else
extern "C" void  type_of_call hropen(const int&,DEFCHAR,DEFCHAR,DEFCHAR,
                        const int&,const int&);
#endif

extern "C" void  type_of_call hrin(const int&,const int&,const int&);
extern "C" void  type_of_call hnoent(const int&,const int&);
#ifndef WIN32
extern "C" void  type_of_call hgive(const int&,DEFCHAR,const int&,const float&,const float&,
   const int&,const float&,const float&,const int&,const int&,const int);
#else
extern "C" void  type_of_call hgive(const int&,DEFCHAR,const int&,const float&,const float&,
   const int&,const float&,const float&,const int&,const int&);
#endif

#ifndef WIN32
extern "C" void  type_of_call hgiven(const int&,DEFCHAR,const int&,DEFCHAR,
   const float&,const float&,const int,const int);
#else
extern "C" void  type_of_call hgiven(const int&,DEFCHAR,const int&,DEFCHAR,
   const float&,const float&);
#endif

#ifndef WIN32
extern "C" void  type_of_call hntvar2(const int&,const int&,DEFCHAR,DEFCHAR,DEFCHAR,int&,int&,int&,int&,int&,const int,const int, const int);
#else
extern "C" void  type_of_call hntvar2(const int&,const int&,DEFCHAR,DEFCHAR,DEFCHAR,int&,int&,int&,int&,int&);
#endif

#ifndef WIN32
extern "C" void  type_of_call hbnam(const int&,DEFCHAR,const int&,DEFCHAR,const int&,const int, const int);
#else
extern "C" void  type_of_call hbnam(const int&,DEFCHAR,const int&,DEFCHAR,const int&);
#endif

extern "C" void  type_of_call hprntu(const int&);
extern "C" void  type_of_call hgnpar(const int&,const char *,const int);
extern "C" void  type_of_call hgnf(const int&,const int&,const float&,const int&);
extern "C" void  type_of_call hgnt(const int&,const int&,const int&);
extern "C" void  type_of_call rzink(const int&,const int&,const char *,const int);
extern "C" void  type_of_call hdcofl();
extern "C" void  type_of_call hmaxim(const int&,const float&);
extern "C" void  type_of_call hminim(const int&,const float&);
extern "C" void  type_of_call hdelet(const int&);
extern "C" float type_of_call hi(const int&,const int&);
extern "C" float type_of_call hie(const int&,const int&);
extern "C" float type_of_call hif(const int&,const int&);
extern "C" float type_of_call hij(const int&,const int&,const int&);
extern "C" void  type_of_call hix(const int&,const int&,const float&);
extern "C" void  type_of_call hijxy(const int&,const int&,const int&,const float&,const float&);
extern "C" float type_of_call hije(const int&,const int&,const int&);
#ifndef WIN32
extern "C" void  type_of_call hcdir(DEFCHAR,DEFCHAR ,const int,const int);
#else
extern "C" void  type_of_call hcdir(DEFCHAR,DEFCHAR);
#endif

extern "C" void  type_of_call zitoh(const int&,const int&,const int&);
#ifndef WIN32
extern "C" void  type_of_call uhtoc(const int&,const int&,DEFCHAR,int&,const int);
#else
extern "C" void  type_of_call uhtoc(const int&,const int&,DEFCHAR,int&);
#endif

extern void convert_directory(const char*);
extern void convert_1d(Int_t id);
extern void convert_2d(Int_t id);
extern void convert_profile(Int_t id);
extern void convert_cwn(Int_t id);
extern void convert_rwn(Int_t id);

Int_t golower  = 1;
Int_t bufsize  = 64000;
Int_t optcwn = 1;
int main(int argc, char **argv)
{
  if (argc < 2) {
     printf("******Error in invoking h2root\n");
     printf("===>  h2root file.hbook  file.root [compress] [tolower] [lrecl] [bufsize] [optcwn] \n");
     printf("      if file.root is not given  it will be = file.root\n");
     printf("      compress = 1 by default (use 0 for no compression)\n");
     printf("      tolower  = 1 by default (use 0 to keep case of column names)\n");
     printf("      lrecl =0 by default (must be specified if >8092)\n");
     printf("      bufsize = 8000 by default (branch buffer size)\n");
     printf("      for cwn ntuple only: optcwn  = 1 (default)  1-byte int -> char, 2-byte int -> short, (use 0 to keep 4-byte int) \n");
     return 1;
  }
  lq = &pawc[9];
  iq = &pawc[17];
  void *qq = iq;
   q = (float*)qq;
  char *file_in=argv[1];
  char *file_out;
  Int_t compress = 1;
  int ier=0, record_size=0;
  if (argc > 7) {
    optcwn = atoi(argv[7]);
  }
  if (argc > 6) {
    bufsize = atoi(argv[6]);
  }
  if (argc > 5) {
    record_size = atoi(argv[5]);
  }
  if (argc > 4) {
    golower = atoi(argv[4]);
  }
  if (argc > 3) {
    compress = atoi(argv[3]);
  }
  if (argc > 2) {
    file_out=argv[2];
  } else {
    file_out= new char[128];
    strcpy(file_out,file_in);
    char *dot = strrchr(file_out,'.');
    if (dot) strcpy(dot+1,"root");
    else     strcat(file_out,".root");
  }

#if defined(_HIUX_SOURCE) && !defined(__GNUC__)
  hf_fint((char *)NULL);
#endif


  int pawc_size = PAWC_SIZE;
  hlimit(pawc_size);

  int lun = 10;
#ifndef WIN32
  hropen(lun,PASSCHAR("example"),PASSCHAR(file_in),PASSCHAR("p"),record_size,ier,7,strlen(file_in),1);
#else
  hropen(lun,PASSCHAR("example"),PASSCHAR(file_in),PASSCHAR("p"),record_size,ier);
#endif

  if (ier) printf (" Error on hropen was %d \n", ier);
  if (quest[0]) {
     printf("Error cannot open input file: %s\n",file_in);
     return 1;
  }

  char root_file_title[128];
  sprintf(root_file_title,"HBOOK file: %s converted to ROOT",file_in);
  TFile* hfile= TFile::Open(file_out,"RECREATE",root_file_title,compress);
  
  if (!hfile) {
     printf("Error: can't open output file: %s \n",file_out);
     return 1;
  }
  

  convert_directory("//example");

  hfile->Write();
  hfile->ls();
  hfile->Close();
  delete hfile;
  return(0);
}

//____________________________________________________________________________
void convert_directory(const char *dir)
{

  printf(" Converting directory %s\n",dir);
  Int_t id;
//  Int_t nastycase=0;
//  Int_t nastyprint=0;
//  Int_t idold = 0;
  for (Int_t key=1;key<1000000;key++) {
     int z0 = 0;
     rzink(key,z0,"S",1);
     if (quest[0]) break;
     if (quest[13] & 8) {
        continue;
//        if (!nastyprint) {
//           printf("Found nasty Hbook case!! You had an Hbook error message\n");
//           printf(" when creating the file (too many records)\n");
//           printf(" Hbook file should have been created with a bigger LRECL\n");
//           printf(" ROOT will try to recover\n");
//           nastyprint = 1;
//        }
//        nastycase  = 1;
     }
     id = quest[20];
//     if (id == idold && nastycase) continue;
//     nastycase  = 0;
//     idold = id;
     int i999 = 999;
     hrin(id,i999,0);
     if (quest[0]) {
        printf("Error cannot read ID = %d\n",id);
        break;
     }
     hdcofl();
     lcid  = hcbook[10];
     lcont = lq[lcid-1];
     if (hcbits[3]) {
        if (iq[lcid-2] == 2) convert_rwn(id);
        else                 convert_cwn(id);
        hdelet(id);
        continue;
     }
     if (hcbits[0] && hcbits[7]) {
        convert_profile(id);
        hdelet(id);
        continue;
     }
     if (hcbits[0]) {
        convert_1d(id);
        hdelet(id);
        continue;
     }
     if (hcbits[1] || hcbits[2]) {
        convert_2d(id);
        hdelet(id);
     }
  }

// converting subdirectories of this directory
  const Int_t KLS = 26;
  const Int_t KNSD = 23;
  lcdir = rzcl[2];
  Int_t ls = iq[lcdir+KLS];
  Int_t ndir = iq[lcdir+KNSD];
  Int_t nch=16;
  Int_t ihdir[4];
  Int_t ncw = 4;
  TDirectory *cursav = gDirectory;
  Int_t i;
  char chdir[17];
  char hbookdir[17];
  for (Int_t k=0;k<ndir;k++) {
     lcdir = rzcl[2];
     zitoh(iq[lcdir+ls+7*k],ihdir[0],ncw);
     for (i=0;i<17;i++) chdir[i] = 0;
#ifndef WIN32
     uhtoc(ihdir[0],ncw,chdir,nch ,16);
#else
     uhtoc(ihdir[0],ncw,chdir,16,nch);
#endif
     strcpy(hbookdir,chdir);
     for (i=16;i>0;i--) {
        if (chdir[i] == 0) continue;
        if (chdir[i] != ' ') break;
        chdir[i] = 0;
     }
#ifndef WIN32
     hcdir(PASSCHAR(hbookdir),PASSCHAR(" "),16,1);
#else
     hcdir(PASSCHAR(hbookdir),PASSCHAR(" "));
#endif
     TDirectory *newdir = new TDirectory(chdir,chdir);
     newdir->cd();
     convert_directory(chdir);
#ifndef WIN32
     hcdir(PASSCHAR("\\"),PASSCHAR(" "),1,1);
#else
     hcdir(PASSCHAR("\\"),PASSCHAR(" "));
#endif
     newdir->Write();
     cursav->cd();
  }
}

//____________________________________________________________________________
  void convert_1d(Int_t id)
{
  if (id > 0) sprintf(idname,"h%d",id);
  else        sprintf(idname,"h_%d",-id);
  hnoent(id,nentries);
#ifndef WIN32
  hgive(id,chtitl,ncx,xmin,xmax,ncy,ymin,ymax,nwt,idb,80);
#else
  hgive(id,chtitl,80,ncx,xmin,xmax,ncy,ymin,ymax,nwt,idb);
#endif
  chtitl[4*nwt] = 0;
  TH1F *h1;
  Int_t i;
  if (hcbits[5]) {
     Int_t lbins = lq[lcid-2];
     Double_t *xbins = new Double_t[ncx+1];
     for (i=0;i<=ncx;i++) xbins[i] = q[lbins+i+1];
     h1 = new TH1F(idname,chtitl,ncx,xbins);
     delete [] xbins;
  } else {
     h1 = new TH1F(idname,chtitl,ncx,xmin,xmax);
  }
  if (hcbits[8]) h1->Sumw2();
  TGraph *gr = 0;
  if (hcbits[11]) {
     gr = new TGraph(ncx);
     h1->GetListOfFunctions()->Add(gr);
  }

  Float_t x;
  for (i=0;i<=ncx+1;i++) {
     x = h1->GetBinCenter(i);
     h1->Fill(x,hi(id,i));
     if (hcbits[8]) h1->SetBinError(i,hie(id,i));
     if (gr && i>0 && i<=ncx) gr->SetPoint(i,x,hif(id,i));
  }
  Float_t ymin, ymax;
  if (hcbits[19]) {
     ymax = q[lcid+kMAX1];
     h1->SetMaximum(ymax);
  }
  if (hcbits[20]) {
     ymin = q[lcid+kMIN1];
     h1->SetMinimum(ymin);
  }
  h1->SetEntries(nentries);
  h1->Write();
  delete h1;
}

//____________________________________________________________________________
  void convert_2d(Int_t id)
{
  if (id > 0) sprintf(idname,"h%d",id);
  else        sprintf(idname,"h_%d",-id);
  hnoent(id,nentries);
#ifndef WIN32
  hgive(id,chtitl,ncx,xmin,xmax,ncy,ymin,ymax,nwt,idb,80);
#else
  hgive(id,chtitl,80,ncx,xmin,xmax,ncy,ymin,ymax,nwt,idb);
#endif
  chtitl[4*nwt] = 0;
  TH2F *h2 = new TH2F(idname,chtitl,ncx,xmin,xmax,ncy,ymin,ymax);
  Float_t offsetx = 0.5*(xmax-xmin)/ncx;
  Float_t offsety = 0.5*(ymax-ymin)/ncy;
  Int_t lw = lq[lcont];
  if (lw) h2->Sumw2();

  Float_t x,y;
  for (Int_t j=0;j<=ncy+1;j++) {
     for (Int_t i=0;i<=ncx+1;i++) {
        hijxy(id,i,j,x,y);
        h2->Fill(x+offsetx,y+offsety,hij(id,i,j));
        if (lw) {
           Double_t err2 = hije(id,i,j);
           h2->SetCellError(i,j,err2);
        }
     }
  }
  h2->SetEntries(nentries);
  h2->Write();
  delete h2;
}

//____________________________________________________________________________
  void convert_profile(Int_t id)
{
// the following structure is used in Hbook
//    lcid points to the profile in array iq
//    lcont = lq(lcid-1)
//    lw    = lq(lcont)
//    ln    = lq(lw)
//      if option S jbyt(iq(lw),1,2) = 1
//      if option I jbyt(iq(lw),1,2) = 2

  if (id > 0) sprintf(idname,"h%d",id);
  else        sprintf(idname,"h_%d",-id);
  hnoent(id,nentries);
  Int_t lw = lq[lcont];
  Int_t ln = lq[lw];
#ifndef WIN32
  hgive(id,chtitl,ncx,xmin,xmax,ncy,ymin,ymax,nwt,idb,80);
#else
  hgive(id,chtitl,80,ncx,xmin,xmax,ncy,ymin,ymax,nwt,idb);
#endif
  Float_t offsetx = 0.5*(xmax-xmin)/ncx;
  chtitl[4*nwt] = 0;
  const char *option= " ";
  if (iq[lw] == 1) option = "S";
  if (iq[lw] == 2) option = "I";
  TProfile *p = new TProfile(idname,chtitl,ncx,xmin,xmax,ymin,ymax,option);

  const Int_t kCON1 = 9;
  Int_t i;
  Float_t x;
  Float_t y = 0.5*(ymin+ymax);
  for (i=1;i<=ncx;i++) {
     Int_t n = Int_t(q[ln+i]);
     hix(id,i,x);
     for (Int_t j=0;j<n;j++) {
        p->Fill(x+offsetx,y);
     }
     //p->SetBinEntries(i,n);  //this one should be much faster (to be tested)
     Float_t content = q[lcont+kCON1+i];
     Float_t error   = TMath::Sqrt(q[lw+i]);
     p->SetBinContent(i,content);
     p->SetBinError(i,error);
  }
  p->SetEntries(nentries);
  p->Write();
  delete p;
}

//____________________________________________________________________________
  void convert_rwn(Int_t id)
{
  const int Nchar=9;
  int nvar;
  int ier=0;
  int i,j;
  char *chtag_out;
  float *x;
  float rmin[1000], rmax[1000];

  if (id > 0) sprintf(idname,"h%d",id);
  else        sprintf(idname,"h_%d",-id);
  hnoent(id,nentries);
  printf(" Converting RWN with ID= %d, nentries = %d\n",id,nentries);
  nvar=0;
#ifndef WIN32
  hgiven(id,chtitl,nvar,PASSCHAR(""),rmin[0],rmax[0],80,0);
#else
  hgiven(id,chtitl,80,nvar,PASSCHAR(""),rmin[0],rmax[0]);
#endif

  chtag_out = new char[nvar*Nchar+1];
  x = new float[nvar];

  chtag_out[nvar*Nchar]=0;
  for (i=0;i<80;i++)chtitl[i]=0;
#ifndef WIN32
  hgiven(id,chtitl,nvar,chtag_out,rmin[0],rmax[0],80,Nchar);
#else
  hgiven(id,chtitl,80,nvar,chtag_out,Nchar,rmin[0],rmax[0]);
#endif
  hgnpar(id,"?",1);
  char *name = chtag_out;
  for (i=80;i>0;i--) {if (chtitl[i] == ' ') chtitl[i] = 0; }
  TTree *tree = new TTree(idname,chtitl);
  Int_t first,last;
  for(i=0; i<nvar;i++) {
    name[Nchar-1] = 0;
    first = last = 0;
    // suppress traling blanks
    for (j=Nchar-2;j>0;j--) {
       if(golower) name[j] = tolower(name[j]);
       if (name[j] == ' ' && last == 0) name[j] = 0;
       else last = j;
    }
    if (golower == 2) name[0] = tolower(name[0]);

    // suppress heading blanks
    for (j=0;j<Nchar;j++) {
       if (name[j] != ' ') break;
       first = j+1;
    }
    tree->Branch(&name[first],&x[i],&name[first],bufsize);
    name += Nchar;
  }
  for(i=1;i<=nentries;i++) {
    hgnf(id,i,x[0],ier);
    tree->Fill();
  }
  tree->Write();
  delete tree;
  delete [] x;
}

//____________________________________________________________________________
  void convert_cwn(Int_t id)
{
  const int Nchar=9;
  int nvar;
  int ier=0;
  int i,j;
  int nsub,itype,isize,ielem;
  char *chtag_out;
  float *x;
  float rmin[1000], rmax[1000];

  if (id > 0) sprintf(idname,"h%d",id);
  else        sprintf(idname,"h_%d",-id);
  hnoent(id,nentries);
  printf(" Converting CWN with ID= %d, nentries = %d\n",id,nentries);
  nvar=0;
#ifndef WIN32
  hgiven(id,chtitl,nvar,PASSCHAR(""),rmin[0],rmax[0],80,0);
#else
  hgiven(id,chtitl,80,nvar,PASSCHAR(""),rmin[0],rmax[0]);
#endif


  chtag_out = new char[nvar*Nchar+1];
  Int_t *charflag = new Int_t[nvar];
  Int_t *lenchar  = new Int_t[nvar];
  Int_t *boolflag = new Int_t[nvar];
  Int_t *lenbool  = new Int_t[nvar];
  UChar_t *boolarr = new UChar_t[10000];
  x = new float[nvar];
  char *bigbuf = new char[2500000];

  chtag_out[nvar*Nchar]=0;
  for (i=0;i<80;i++)chtitl[i]=0;
#ifndef WIN32
  hgiven(id,chtitl,nvar,chtag_out,rmin[0],rmax[0],80,Nchar);
#else
  hgiven(id,chtitl,80,nvar,chtag_out,Nchar,rmin[0],rmax[0]);
#endif
#ifndef WIN32
  hbnam(id,PASSCHAR(" "),bigbuf[0],PASSCHAR("$CLEAR"),0,1,6);
#else
  hbnam(id,PASSCHAR(" "),bigbuf[0],PASSCHAR("$CLEAR"),0);
#endif

  Int_t bufpos = 0;
  Int_t isachar = 0;
  Int_t isabool = 0;
  char fullname[64];
  char name[32];
  char block[32];
  char oldblock[32];
  Int_t nbits = 0;
  strcpy(oldblock,"OLDBLOCK");
  Int_t oldischar = -1;
  for (i=80;i>0;i--) {if (chtitl[i] == ' ') chtitl[i] = 0; }
  TTree *tree = new TTree(idname,chtitl);
  for(i=0; i<nvar;i++) {
     memset(name,' ',sizeof(name));
     name[sizeof(name)-1] = 0;
     memset(block,' ',sizeof(block));
     block[sizeof(block)-1] = 0;
     memset(fullname,' ',sizeof(fullname));
     fullname[sizeof(fullname)-1]=0;
#ifndef WIN32
     hntvar2(id,i+1,PASSCHAR(name),PASSCHAR(fullname),PASSCHAR(block),nsub,itype,isize,nbits,ielem,32,64,32);
#else
     hntvar2(id,i+1,PASSCHAR(name),PASSCHAR(fullname),PASSCHAR(block),nsub,itype,isize,nbits,ielem);
#endif
     
     for (j=30;j>0;j--) {
       if(golower) name[j] = tolower(name[j]);
       if (name[j] == ' ') name[j] = 0;
     }
     if (golower == 2) name[0] = tolower(name[0]);
     
     for (j=62;j>0;j--) {
        if(golower && fullname[j-1] != '[') fullname[j] = tolower(fullname[j]);
        // convert also character after [, if golower == 2
        if (golower == 2) fullname[j] = tolower(fullname[j]);
        if (fullname[j] == ' ') fullname[j] = 0;
     }
     // convert also first character, if golower == 2
     if (golower == 2) fullname[0] = tolower(fullname[0]);
     for (j=30;j>0;j--) {
        if (block[j] == ' ') block[j] = 0;
        else break;
     }
     if (itype == 1) {
       if( isize == 4 )     strcat(fullname,"/F");
       else if( isize == 8) strcat(fullname,"/D");
     }
     
     
     // add support for 1-byte (Char_t) and 2-byte (Short_t) integers  
     Int_t nBytesUsed = 4; // default for integers
     
     if( itype == 2 )  
       {
	 if( optcwn == 1 ) 
	   { 
	     if( nbits > 16 ) 
	       {
		 strcat(fullname,"/I");
	       }
	     else 
	       {
		 if( nbits > 8 )
		   { 
		     strcat(fullname,"/S");
		     nBytesUsed = 2;
		   }
		 else
		   {
		     strcat(fullname,"/B");
		     nBytesUsed = 1;
		   }
	       }
	   }
	 else 
	   {
	     strcat(fullname,"/I");
	   }
       }
     
     // add support for 1-byte (UChar_t) and 2-byte (UShort_t) integers  
     if ( itype == 3 ) 
       {
	 if(  optcwn == 1 ) 
	   { 
	     if( nbits > 16) 
	       {
		 strcat(fullname,"/i");
	       }
	     else
	       {   
		 if( nbits > 8 )
		   {
		     strcat(fullname,"/s");
		     nBytesUsed = 2;
		   }
		 else
		   {
		     strcat(fullname,"/b");
		     nBytesUsed = 1;
		   }
	       }
	   }
	 else 
	   {
	     strcat(fullname,"/i");
	   }
       }
     
     
     
     
//     if (itype == 4) strcat(fullname,"/i");
     if (itype == 4) strcat(fullname,"/b");
     if (itype == 5) strcat(fullname,"/C");
printf("Creating branch:%s, block:%s, fullname:%s, nsub=%d, itype=%d, isize=%d, ielem=%d\n",name,block,fullname,nsub,itype,isize,ielem);
     Int_t ischar;
     if (itype == 5) ischar = 1;
     else            ischar = 0;
     if (ischar != oldischar || strcmp(oldblock,block) != 0) {
        strcpy(oldblock,block);
        oldischar = ischar;
        Int_t lblock   = strlen(block);
        Long_t add= (Long_t)&bigbuf[bufpos];
#ifndef WIN32
        hbnam(id,PASSCHAR(block),add,PASSCHAR("$SET"),ischar,lblock,4);
#else
        hbnam(id,PASSCHAR(block),add,PASSCHAR("$SET"),ischar);
#endif

     }
     TBranch *branch = tree->Branch(name,(void*)&bigbuf[bufpos],fullname,bufsize);
     boolflag[i] = -10;
     charflag[i] = 0;
     if (itype == 4) {isabool++; boolflag[i] = bufpos; lenbool[i] = ielem;}
     bufpos += isize*ielem;
     if (ischar) {isachar++; charflag[i] = bufpos-1; lenchar[i] = isize*ielem;}
     TObjArray *ll= branch->GetListOfLeaves();
     TLeaf *leaf = (TLeaf*)ll->UncheckedAt(0);
     if (!leaf) continue;
     TLeafI *leafcount = (TLeafI*)leaf->GetLeafCount();
     if (leafcount) {
        if (leafcount->GetMaximum() <= 0) leafcount->SetMaximum(ielem);
     }
  }
  Int_t cf,l;
  for(i=1;i<=nentries;i++) {
     hgnt(id,i,ier);
     if (isabool) { // if column is boolean
        for (j=0;j<nvar;j++) {
           cf = boolflag[j];
           if (cf >-1) {
              for (l=0;l<lenbool[j];l++) {
#ifdef R__BYTESWAP
                 boolarr[l] = (UChar_t)bigbuf[cf+4*l];
#else
                 boolarr[l] = (UChar_t)bigbuf[cf+4*l+3];
#endif
              }
              memcpy(&bigbuf[cf],boolarr,lenbool[j]);
           }
        }
     }
     if (isachar) { // if column is character, set terminator
        for (j=0;j<nvar;j++) {
           cf = charflag[j];
           if (cf) {
              bigbuf[cf] = '\0';
              if (bigbuf[cf-1] != ' ') continue;
              bigbuf[cf-1] = '\0';
              if (bigbuf[cf-2] != ' ') continue;
              bigbuf[cf-2] = '\0';
           }
        }
     }

    // if optimizing cwn ntuple then look up bufpos and adjust integers to be shorts or chars
    if(  optcwn == 1 ) 
      { 
	bufpos = 0;
	for(int k=0; k<nvar;k++) 
	  {
#ifndef WIN32
	    hntvar2(id,k+1,PASSCHAR(name),PASSCHAR(fullname),PASSCHAR(block),nsub,itype,isize,nbits,ielem,32,64,32);
#else
	    hntvar2(id,k+1,PASSCHAR(name),PASSCHAR(fullname),PASSCHAR(block),nsub,itype,isize,nbits,ielem);
#endif
	    
	    Int_t nBytesUsed = 4; // default for integers
	    
	    if ( itype == 2 || itype == 3) 
	      {
		if( nbits > 16) 
		  {
		    // do nothing for integers of 4 byte
		  }
		else
		  {   
		    if( nbits > 8 )
		      {
			nBytesUsed = 2;
		      }
		    else
		      {
			nBytesUsed = 1;
		      }
		  }
	      }
	    
	    if(nBytesUsed == 1)
	      {
		
		for(Int_t index = 0; index < ielem; index++)
		  {
		    // shift all chars with data to be one after another
		    bigbuf[bufpos + index*nBytesUsed ] =  bigbuf[bufpos + index * isize];
		  }
	      } 
	    else
	      {
		if(nBytesUsed == 2)
		  {
		    
		    for(Int_t index = 0; index < ielem; index++)
		      {
			// shift all shorts ( 2 chars) with data to be one after another 
			bigbuf[bufpos + index*nBytesUsed ] =  bigbuf[bufpos + index * isize];
			bigbuf[bufpos + index*nBytesUsed+1 ] =  bigbuf[bufpos + index * isize+1];
		      }
		  }
	      }
	    bufpos += isize*ielem;
	  }
      }

     tree->Fill();
  }
  tree->Print();
  tree->Write();
  delete tree;
  delete [] x;
  delete [] bigbuf;
  delete [] charflag;
  delete [] lenchar;
  delete [] boolflag;
  delete [] lenbool;
  delete [] boolarr;
  delete [] chtag_out;
}
