unicode.cpp

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#include "unicode.h"

#include <stddef.h>

#include "../bscript/bobject.h"
#include "../clib/clib_endian.h"

namespace Pol
{
namespace Core
{
// Warning: Make sure that your buffer if large enough! Don't forget to add space for null
// terminator if requested.
bool convertArrayToUC( Bscript::ObjArray*& in_text, u16* out_wtext, size_t textlen,
                       bool ConvToBE /*false*/, bool nullterm /*true*/ )
{
  u16 value;
  size_t pos = 0;
  for ( size_t i = 0; i < textlen; i++ )
  {
    Bscript::BObject* bo = in_text->ref_arr[i].get();
    if ( bo == nullptr )
      continue;
    if ( !bo->isa( Bscript::BObjectImp::OTLong ) )
      return false;
    Bscript::BObjectImp* imp = bo->impptr();
    Bscript::BLong* blong = static_cast<Bscript::BLong*>( imp );
    value = ( u16 )( blong->value() & 0xFFFF );
    out_wtext[pos++] = ConvToBE ? ctBEu16( value ) : value;
    // Jump out on a nullptr (EOS) value (should stop exploits, too?)
    if ( value == 0L )
      return true;
  }
  if ( nullterm )
    out_wtext[pos] = (u16)0L;
  return true;
}

bool convertUCtoArray( const u16* in_wtext, Bscript::ObjArray*& out_text, size_t textlen,
                       bool ConvFromBE /*false*/ )
{
  u16 value;
  out_text = new Bscript::ObjArray();
  for ( size_t i = 0; i < textlen; i++ )
  {
    value = ConvFromBE ? cfBEu16( in_wtext[i] ) : in_wtext[i];
    // Jump out on a nullptr (EOS) value (should stop exploits, too?)
    if ( value == 0L )
      return true;
    out_text->addElement( new Bscript::BLong( value ) );
  }
  return true;
}
}
}