- Renamed Transformation::evaluate to Transformation::transform to avoid
confusion with Action's overload methods.
- Updated Transformation::transform signature to receive the value by
reference and perform the transformation inline, if possible.
- Some transformations still need to use a temporary std::string to
perform their work, and then copy the result back.
- Made Transformation::transform methods const and updated Transaction
parameter to be const.
- Transaction parameter could not be removed because it's used by just
a single transformation, UrlDecodeUni.
- Removed std::string Action::evaluate(const std::string &exp,
Transaction *transaction); which was only implemented by
Transformation but was not used from the base class, but only after
downcasting to Transformation, so it can just be declared there (and
not pollute other actions with a default member implementation -that
does nothing- which is never called).
- std::ctime returns a pointer to a string that "may be shared between
std::asctime and std::ctime, and may be overwritten on each invocation
of any of those functions.".
- https://en.cppreference.com/w/cpp/chrono/c/ctime
- Replaced with call to strftime to generate the same string
representation (using the format string: %c)
- Leveraged localtime_r (which is thread-safe) to convert time_t to
struct tm, as required by strftime.
- Initialize `log` temporary value on construction instead of doing
default initialization and then calling `append`.
- Leverage `std::string_view` to replace `const std::string&` parameters
in `utils::string::replaceAll` to avoid creating a `std::string`
object (and associated allocation and copy) for the string literal`%d`
