Method NextTokenHead

IO/Geometry/vtkOpenFOAMReader.cxx:2994–3060

get next semantically valid character

// get next semantically valid character
int vtkFoamFile::NextTokenHead()
{
  while (true)
  {
    int c;
    while (isspace(c = this->Getc())) // isspace() accepts -1 as EOF
    {
      if (c == '\n')
      {
        ++this->Superclass::LineNumber;
#if VTK_FOAMFILE_RECOGNIZE_LINEHEAD
        this->Superclass::WasNewline = true;
#endif
      }
    }
    if (c == '/')
    {
      if ((c = this->Getc()) == '/')
      {
        while ((c = this->Getc()) != EOF && c != '\n')
          ;
        if (c == EOF)
        {
          return c;
        }
        ++this->Superclass::LineNumber;
#if VTK_FOAMFILE_RECOGNIZE_LINEHEAD
        this->Superclass::WasNewline = true;
#endif
      }
      else if (c == '*')
      {
        while (true)
        {
          while ((c = this->Getc()) != EOF && c != '*')
          {
            if (c == '\n')
            {
              ++this->Superclass::LineNumber;
            }
          }
          if (c == EOF)
          {
            return c;
          }
          else if ((c = this->Getc()) == '/')
          {
            break;
          }
          this->PutBack(c);
        }
      }
      else
      {
        this->PutBack(c); // may be an EOF
        return '/';
      }
    }