Method parse_unquoted_expr

plugins/experimental/txn_box/plugin/src/Config.cc:260–304

}

Rv<Expr>
Config::parse_unquoted_expr(swoc::TextView const &text)
{
  // Integer?
  TextView parsed;
  auto     n = swoc::svtoi(text, &parsed);
  if (parsed.size() == text.size()) {
    return Expr{Feature{n}};
  }

  // bool?
  auto b = BoolNames[text];
  if (b != BoolTag::INVALID) {
    return Expr{Feature{b == BoolTag::True}};
  }

  // float?
  double f = swoc::svtod(text, &parsed);
  if (parsed.size() == text.size()) {
    return Expr{Feature{f}};
  }

  // IP Address?
  swoc::IPAddr addr;
  if (addr.load(text)) {
    return Expr{Feature{addr}};
  }

  // Presume an extractor.
  Extractor::Spec spec;
  bool            valid_p = spec.parse(text);
  if (!valid_p) {
    return Errata(S_ERROR, R"(Invalid syntax for extractor "{}" - not a valid specifier.)", text);
  }
  auto &&[vt, errata] = this->validate(spec);
  if (!errata.is_ok()) {
    return std::move(errata);
  }

  if (vt.is_cfg_const()) {
    return Expr{spec._exf->extract(*this, spec)};
  }

  return Expr{spec, vt};
}

Rv<Expr>
Config::parse_composite_expr(TextView const &text)