Add support for JSON.STRAPPEND and JSON.STRLEN command

[guojidan]

This closes #1823 #1824

[guojidan]

I fixed the problem you pointed out : )

[PragmaTwice]

Even if you want to use -1 as a flag number, you DO NOT need to change unsigned integer type to signed integer. It is useless and make the situation more complicted.

If you don't get this point, you can refer to https://en.cppreference.com/w/cpp/string/basic_string/npos.

It also gonna be a blocking issue of this PR.

[guojidan]

Even if you want to use -1 as a flag number, you DO NOT need to change unsigned integer type to signed integer. It is useless and make the situation more complicted.

If you don't get this point, you can refer to https://en.cppreference.com/w/cpp/string/basic_string/npos.

It also gonna be a blocking issue of this PR.

I understand

[PragmaTwice]

Hi @guojidan, before we review this PR, you can first try to solve these conflicts with unstable.

[guojidan]

Hi @guojidan, before we review this PR, you can first try to solve these conflicts with unstable.

hi @PragmaTwice Thank you very much for your help, now I already rebase this pr

[PragmaTwice]

Sorry but it still has several issues which need to be addressed before merging.

[guojidan]

@guojidan Are you still working on this PR?

@guojidan Are you still working on this PR?

yes, this pr wait review

[git-hulk]

Some places need to be improved, but I will do it in another PR:

• Keep consistent of the integer receiver, should be std::vector<std::optional<uint64_t>>.
• Add a function to covert std::vector<std::optional<uint64_t>> to the Redis output to avoid duplicate code blocks.

To avoid PR being pending too long and those improvements are code style-related. So it's good for me to approve this PR first and improve it later.

[git-hulk]

@guojidan Cloud you please resolve conflicts again

fixed

[sonarqubecloud]

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5.4% Duplication