Method postProcess

avida-core/source/tools/cInitFile.cc:217–279

void cInitFile::postProcess(Apto::Array<sLine*, Apto::Smart>& lines)
{
  m_mappings.Clear();
  m_imported_files.Clear();
  
  // We're going to handle this compression in multiple passes to make it
  // clean and easy.

  const int num_lines = lines.GetSize();

  // PASS 1: Remove all comments -- everything after a '#' sign -- and
  // compress all whitespace into a single space.
  for (int i = 0; i < num_lines; i++) {
    cString& cur_line = lines[i]->line;

    // Remove all characters past a comment mark and reduce whitespace.
    int comment_pos = cur_line.Find('#');
    if (comment_pos >= 0) cur_line.Clip(comment_pos);
    cur_line.CompressWhitespace();
  }

  // PASS 2: Merge each line ending with a continue marker '\' with the
  // next line.

  int prev_line_id = -1;
  bool continued = false;
  for (int i = 0; i < num_lines; i++) {
    // If the current line is a continuation, append it to the previous line.
    if (continued == true) {
      lines[prev_line_id]->line += lines[i]->line;
      lines[i]->line = "";
    }
    else prev_line_id = i;

    // See if the prev_line is continued, and if it is, take care of it.
    cString& prev_line = lines[prev_line_id]->line;
    if (prev_line.GetSize() > 0 && prev_line[prev_line.GetSize() - 1] == '\\') {
      prev_line.ClipEnd(1);  // Remove continuation mark.
      continued = true;
    }
    else continued = false;
  }

  // PASS 3: Remove now-empty lines.

  int next_id = 0;
  for (int i = 0; i < num_lines; i++) {
    // If we should keep this line, compact it.
    if (lines[i]->line.GetSize() > 0) {
      if (next_id != i) {
        delete lines[next_id];
        lines[next_id] = lines[i];
        lines[i] = NULL;
      }
      next_id++;
    }
  }