crd2enex: cardfile (.crd file of Windows 3.1) to Evernote export format (.enex) converter

crd2enex.cpp

// crd2enex.cpp
// Description: cardfile (.crd file of Windows 3.1) to Evernote export format (.enex) converter
// Copyright (C) 2014,2015 Takeshi Nishimatsu
// Gist: https://gist.github.com/t-nissie/9771048
// Compile: g++ -Wall -g -o crd2enex crd2enex.cpp
// Usage: ./crd2enex English.crd > English.enex
//        ./crd2enex Japanese.crd | nkf -S -w > Japanese.enex
// Bug: If a card has <> or [] in its text, its converted note will be irregular.
//      You can find the irregularity by synchronization failure of the note.
//      Please fix the irregular note manually.
// License: crd2enex.cpp is distributed in the hope that
//          it will be useful, but WITHOUT ANY WARRANTY.
//          You can copy, modify and redistribute crd2enex.cpp,
//          but only under the conditions described in
//          the GNU General Public License version 3 (the "GPLv3").
////
#include <stdlib.h>
#include <fstream>
#include <iostream>

int main( int argc, char *argv[] )
{
  int   i, j;
  int   NCard=0, ContentsLength=0 ;
  char  c, Index[41];
  long  ContentsSeekOffset=0L;
  char  *psNCard = (char *)&NCard;
  char  *psContentsSeekOffset = (char *)&ContentsSeekOffset;
  char  *psContentsLength = (char *)&ContentsLength;

  Index[40]=0;

  //******************  open the file *********************
  std::ifstream inCardFile(argv[1], std::ios::in);
  inCardFile.seekg(0L, std::ios::end );
  if ( inCardFile.tellg() < 0) {
    std::cerr << __FILE__ << ": cannot open file, " << argv[1] << std::endl;
    exit(1);
  }

  //********  get NCard, the number of the cards  *********
  inCardFile.seekg( 3L, std::ios::beg );
  inCardFile.read( psNCard, 2 );
  //std::cout << NCard << std::endl;

  std::cout << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>" << std::endl
        << "<!DOCTYPE en-export SYSTEM \"http://xml.evernote.com/pub/evernote-export.dtd\">" << std::endl
        << "<en-export export-date=\"20100503T054739Z\" application=\"Evernote\" version=\"Evernote Mac 1.8.1 (79826)\">"
        << std::endl;
  //*************************************************************
  //   LOOP
  //*************************************************************
  for(i=0 ; i < NCard ; i++){
   //******************************************************
   //          get Index
   //******************************************************
    inCardFile.seekg( 52L*i+11L, std::ios::beg );
    inCardFile.read( psContentsSeekOffset, 4 );  //*** get ContentsSeekOffset **
    inCardFile.seekg( 1L, std::ios::cur );
    inCardFile.read( Index, 40 );                //******* get Index ********
   //******  print index  *******************************
    std::cout << "<note><title>" << Index << "</title><content><![CDATA[<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<!DOCTYPE en-note SYSTEM \"http://xml.evernote.com/pub/enml2.dtd\">\n<en-note style=\"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; \"><span style=\"font-weight: bold;\">" <<  Index <<  "</span><br clear=\"none\" />";

   //******************************************************
   //          get contents and print cards
   //******************************************************
    inCardFile.seekg( ContentsSeekOffset+2L, std::ios::beg );
    inCardFile.read( psContentsLength, 2 );      //*** get contentsLength ***

   //******  get contents and print contents  ***********
    for (j=0 ; j<ContentsLength ; j++) {
      inCardFile.read( &c, 1 );
      if(c!=13) std::cout.write( &c, 1 );
    }
    std::cout << "<br clear=\"none\" /><br clear=\"none\" /></en-note>]]></content></note>" << std::endl;
  }
  return 0;
}
//Local variables:
//  compile-command: "g++ -Wall -g -o crd2enex crd2enex.cpp && ./crd2enex science.crd | nkf -S -w > science.enex"
//End: