Method ProcessModifiers

src/proxy/ControlBase.cc:776–856

}

const char *
ControlBase::ProcessModifiers(matcher_line *line_info)
{
  // Variables for error processing
  const char *errBuf = nullptr;
  mod_errors  err    = ME_UNKNOWN;

  int n_elts = line_info->num_el; // Element count for line.

  // No elements -> no modifiers.
  if (0 >= n_elts) {
    return nullptr;
  }
  // Can't have more modifiers than elements, so reasonable upper bound.
  _mods.clear();
  _mods.reserve(n_elts);

  // As elements are consumed, the labels are nulled out and the element
  // count decremented. So we have to scan the entire array to be sure of
  // finding all the elements. We'll track the element count so we can
  // escape if we've found all of the elements.
  for (int i = 0; n_elts && ME_UNKNOWN == err && i < MATCHER_MAX_TOKENS; ++i) {
    Modifier *mod = nullptr;

    char *label = line_info->line[0][i];
    char *value = line_info->line[1][i];

    if (!label) {
      continue; // Already use.
    }
    if (!value) {
      err = ME_PARSE_FAILED;
      break;
    }

    if (strcasecmp(label, "port") == 0) {
      mod = PortMod::make(value, &errBuf);
    } else if (strcasecmp(label, "iport") == 0) {
      mod = IPortMod::make(value, &errBuf);
    } else if (strcasecmp(label, "scheme") == 0) {
      mod = SchemeMod::make(value, &errBuf);
    } else if (strcasecmp(label, "method") == 0) {
      mod = MethodMod::make(value, &errBuf);
    } else if (strcasecmp(label, "prefix") == 0) {
      mod = PrefixMod::make(value, &errBuf);
    } else if (strcasecmp(label, "suffix") == 0) {
      mod = SuffixMod::make(value, &errBuf);
    } else if (strcasecmp(label, "src_ip") == 0) {
      mod = SrcIPMod::make(value, &errBuf);
    } else if (strcasecmp(label, "time") == 0) {
      mod = TimeMod::make(value, &errBuf);
    } else if (strcasecmp(label, "tag") == 0) {
      mod = TagMod::make(value, &errBuf);
    } else if (strcasecmp(label, "internal") == 0) {
      mod = InternalMod::make(value, &errBuf);
    } else {
      err = ME_BAD_MOD;
    }