SAX dumper

[Al2Klimov]

Like the SAX parser, but for dumping. A class with methods called by the using app instead of being called.

[nlohmann]

The whole logic for dumping is in file https://github.com/nlohmann/json/blob/develop/include/nlohmann/detail/output/serializer.hpp which implements class serializer with constructor

serializer(output_adapter_t<char> s, const char ichar,
           error_handler_t error_handler_ = error_handler_t::strict)

and a public method

void dump(const BasicJsonType& val, const bool pretty_print,
          const bool ensure_ascii,
          const unsigned int indent_step,
          const unsigned int current_indent = 0)

taking that implements the traversal.

Some thoughts:

• We could add an overload of basic_json::dump that takes a serializer-like object and uses that for serialization. This would mean that if someone wants some user-defined serialization, she must provide the complete implementation for this.
• Alternatively, we could define a SAX-like interface like dump_string, dump_integer, etc. which separates the logic from the representation. However, I fear that there are so many possible adjustments people want to make to serialization, that it would be impossible to foresee all of them in the interface.

What do you think?

[Al2Klimov]

The second one sounds exactly like the issue description.

[nlohmann]

@Al2Klimov Right, but there are still a lot of details to decide.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[Al2Klimov]

@nlohmann Interesting... is that this feature request's end?

[nlohmann]

No, it's just no-one commented on this for 10 days, and I had no time to look into it.

[Al2Klimov]

I'm not stressing you... but I'm afraid the bot does.

[nlohmann]

The bot is not stressing me. :)

[Al2Klimov]

At least it may let some tickets disappear. For me a closed ticket stands for the subject is either done, rejected or a duplicate.