ON_String& ON_String::operator=(const ON_String& src)
{
	if (m_s != src.m_s)	
  {
    if ( src.IsEmpty() ) 
    {
      Destroy();
      Create();
    }
    else if (    src.Header()->ref_count > 0 
              && 0 == ON_WorkerMemoryPool()
            ) 
    {
      Destroy();
      src.Header()->ref_count++;
      m_s = src.m_s;
    }
    else 
    {
      ReserveArray(src.Length());
      memcpy( m_s, src.Array(), src.Length()*sizeof(*m_s));
      Header()->string_length = src.Length();
    }
  }
	return *this;
}
Exemple #2
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void ON_wString::AppendToArray( int size, const char* s )
{
  if ( size > 0 && s && s[0] ) {
	  ReserveArray(size + Header()->string_length );
    Header()->string_length += c2w( size, s, Header()->string_capacity-Header()->string_length, &m_s[Header()->string_length] );
    m_s[Header()->string_length] = 0;
  }
}
Exemple #3
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void ON_wString::AppendToArray( int size, const wchar_t* s )
{
  if ( size > 0 && s && s[0] ) {
	  ReserveArray(size + Header()->string_length );
	  memcpy(&m_s[Header()->string_length], s, size*sizeof(*m_s));
	  Header()->string_length += size;
    m_s[Header()->string_length] = 0;
  }
}
ON_String::ON_String( unsigned char c, int repeat_count )
{
  Create();
  if ( repeat_count > 0 ) {
    ReserveArray(repeat_count);
    memset( m_s, c, repeat_count*sizeof(*m_s) );
    m_s[repeat_count] = 0;
    Header()->string_length = repeat_count;
  }
}
void ON_String::SetLength(size_t string_length)
{
  int length = (int)string_length; // for 64 bit compilers
  if ( length >= Header()->string_capacity ) {
    ReserveArray(length);
  }
  if ( length >= 0 && length <= Header()->string_capacity ) {
    CopyArray();
    Header()->string_length = length;
    m_s[length] = 0;
  }
}
Exemple #6
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ON_wString::ON_wString( wchar_t c, int repeat_count )
{
  int i;
  Create();
  if ( repeat_count > 0 ) {
    ReserveArray(repeat_count);
    for (i=0;i<repeat_count;i++)
      m_s[i] = c;
    m_s[repeat_count] = 0;
    Header()->string_length = repeat_count;
  }
}
Exemple #7
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void ON_wString::CopyToArray( int size, const char* s )
{
  if ( size > 0 && s && s[0] ) {
	  ReserveArray(size);
    Header()->string_length = c2w( size, s, Header()->string_capacity, m_s );
    m_s[Header()->string_length] = 0;
  }
  else {
    if ( Header()->ref_count > 1 )
      Destroy();
    else {
      Header()->string_length = 0;
      m_s[0] = 0;
    }
  }
}
void ON_String::CopyToArray( int size, const char* s )
{
  if ( size > 0 && s && s[0] ) {
	  ReserveArray(size);
	  memcpy(m_s, s, size*sizeof(*m_s));
	  Header()->string_length = size;
    m_s[Header()->string_length] = 0;
  }
  else {
    if ( Header()->ref_count > 1 )
      Destroy();
    else {
      Header()->string_length = 0;
      m_s[0] = 0;
    }
  }
}
void ON_MSC_CDECL ON_String::Format( const unsigned char* sFormat, ...)
{
#define MAX_MSG_LENGTH 2048
  char sMessage[MAX_MSG_LENGTH];
  va_list args;

  /* put formatted message in sMessage */
  memset(sMessage,0,sizeof(sMessage));
  if (sFormat) {
    va_start(args, sFormat);
    on_vsnprintf(sMessage, MAX_MSG_LENGTH-1, (const char*)sFormat, args);
    sMessage[MAX_MSG_LENGTH-1] = 0;
    va_end(args);
  }
  const int len = Length(sMessage);
  if ( len < 1 ) {
    Destroy();
    Create();
  }
  else {
    ReserveArray( len );
    CopyToArray( len, sMessage );
  }
}
int ON_String::Replace( const char* token1, const char* token2 )
{
  int count = 0;

  if ( 0 != token1 && 0 != token1[0] )
  {
    if ( 0 == token2 )
      token2 = "";
    const int len1 = (int)strlen(token1);
    if ( len1 > 0 )
    {
      const int len2 = (int)strlen(token2);
      int len = Length();
      if ( len >= len1 )
      {
        // in-place
        ON_SimpleArray<int> n(32);
        const char* s = m_s;
        int i;
        for ( i = 0; i <= len-len1; /*empty*/ )
        {
          if ( strncmp(s,token1,len1) )
          {
            s++;
            i++;
          }
          else
          {
            n.Append(i);
            i += len1;
            s += len1;
          }
        }

        count = n.Count();

        // reserve array space - must be done even when len2 <= len1
        // so that shared arrays are not corrupted.
        const int newlen = len + (count*(len2-len1));
        if ( 0 == newlen )
        {
          Destroy();
          return count;
        }

        CopyArray();

        // 24 August 2006 Dale Lear
        //    This used to say
        //       ReserveArray(newlen);
        //    but when newlen < len and the string had multiple
        //    references, the ReserveArray(newlen) call truncated
        //    the input array.  
        ReserveArray( ((newlen<len) ? len : newlen) );

        int i0, i1, ni, j;

        if ( len2 > len1 )
        {
          // copy from back to front
          i1 = newlen;
          i0 = len;
          for ( ni =0; ni < count; ni++ )
            n[ni] = n[ni] + len1;
          for ( ni = count-1; ni >= 0; ni-- )
          {
            j = n[ni];
            while ( i0 > j )
            {
              i0--;
              i1--;
              m_s[i1] = m_s[i0];
            }
            i1 -= len2;
            i0 -= len1;
            memcpy(&m_s[i1],token2,len2*sizeof(m_s[0]));
          }
        }
        else
        {
          // copy from front to back
          i0 = i1 = n[0];
          n.Append(len);
          for ( ni = 0; ni < count; ni++ )
          {
            if ( len2 > 0 )
            {
              memcpy(&m_s[i1],token2,len2*sizeof(m_s[0]));
              i1 += len2;
            }
            i0 += len1;
            j = n[ni+1];
            while ( i0 < j )
            {
              m_s[i1++] = m_s[i0++];
            }
          }
        }
        Header()->string_length = newlen;
        m_s[newlen] = 0;
      }
    }
  }

  return count;
}