importbibtex.cpp

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#include "importbibtex.h"
#include <qstring.h>
#include <stdio.h>
#include <qlineedit.h>
#include <importfile.h>

ImportBibTex::ImportBibTex(QWidget *parent): ImportBase(parent), c(0)  {
   view = new ImportFile(parent);
}

void ImportBibTex::process() {
   bt_initialize ();
   processFile(view->filename->text());
   bt_cleanup ();
}

bool ImportBibTex::processFile(QString filename)
{
   FILE *  infile;
   AST *   entry;
   boolean status, overall_status;
   

   infile = fopen (filename, "r");
   if (infile == NULL)
   {
      perror (filename);
      return false;
   }

   char *fname=strdup(filename);
   overall_status = true;                  /* assume success */
   while (1)
   {
      c++;
      entry = bt_parse_entry (infile, fname, 0, &status);
      overall_status &= status;
      if (!entry) break;
      fillDict(entry);
      bt_free_ast (entry);
   }
   delete fname;
   
   return overall_status;
} 



void ImportBibTex::fillDict (AST * entry)
{
   AST *   field;
   char *    fname;
   char *    value;
   int       i;
   bt_stringlist *namelist;
   bt_name * name;
      

   if (bt_entry_metatype (entry) != BTE_REGULAR)
   {
      printf ("skipping %s entry\n", bt_entry_type (entry));
      return;
   }
    
   printf ("parsing %s: %s\n", bt_entry_key (entry), bt_entry_type (entry));
   
   dict["bibtextype_"+QString().setNum(count())]=bt_entry_type(entry);

   field = NULL;
   while ((field = bt_next_field (entry, field, &fname)))
   {
      if (strcmp (fname, "author") == 0 ||
          strcmp (fname, "editor") == 0)
      {
         value = bt_get_text (field);

         printf ("field: %s:\n", fname);
         printf ("  %s\n", value);

         namelist = bt_split_list (value, "and", NULL, 0, "name");
         if (namelist != NULL)
         {
            printf ("  splits into %d names:\n", namelist->num_items);
            for (i = 0; i < namelist->num_items; i++)
            {
               printf ("    %s\n", namelist->items[i]);

               name = bt_split_name (namelist->items[i], NULL, 0, i);
               printf ("      ");
               
               QString firstnamekey="firstname"+QString().setNum(i)+"_"+QString().setNum(count());
               dict[firstnamekey]=extractComponent ("first", name, BTN_FIRST, "; ");
               
               QString lastname=extractComponent ("von", name, BTN_VON, "; ");
               lastname+=extractComponent ("last", name, BTN_LAST, "; ");
               lastname+=extractComponent ("jr", name, BTN_JR, NULL);
               
               QString lastnamekey="lastname"+QString().setNum(i)+"_"+QString().setNum(count());
               dict[lastnamekey]=lastname;
               printf ("\n");
               printf ("%s=>%s", lastnamekey.ascii(), lastname.ascii());
            }
         }
      } else {
        dict[QString(fname)+"_"+QString().setNum(count())]=bt_get_text(field);
        printf("found %s => %s\n", fname, bt_get_text(field));
      }
   }
}


QString ImportBibTex::extractComponent(char * comp, bt_name * name, int part, char * tail)
{
   int  i;
   char **tokens;
   int  num_tokens;
   QString s;
   
   tokens = name->parts[part];
   num_tokens = name->part_len[part];

   if(num_tokens > 0)
   {
      printf ("%s: ", comp);
      for (i = 0; i < num_tokens; i++)
      {
         printf ("%s/", tokens[i]);
         s+=tokens[i];
         s+=" ";
      }
   }
   return s;
}

int ImportBibTex::count() {
return c;
}

QWidget *ImportBibTex::customDlg() {
  return view;
}

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