[PATCH v2 (Draft)] emacs: split async json parser into utility function

[Ethan Glasser-Camp]

Mark Walters <markwalters1009 at gmail.com> writes:

> Split out the json parser into a utility function.
> ---
>
> Most of this patch is code movement: but I don't see how to arrange the
> patch to show that.

Hi! This looks like a straightforward patch and if it will make
notmuch-pick more efficient, I'm in favor.

I tagged this patch moreinfo because David Bremner's suggestions that
you expand on the docstrings for notmuch-json-parser and
notmuch-json-state are good ideas. I'd also propose that you split this
patch into two patches -- one that pulls out the variables and performs
the renames, and the other which breaks out the code into its own
function. This should make the code movement more obvious. I haven't
started full-time work yet so if you would like me to do this, I can ;)

Based on David Bremner's feedback that it might be a good idea to have a
commit message that explains exactly what is code movement and isn't,
here's my proposal for a commit message.

Split out the json parser into a utility function.

This patch breaks out a chunk of notmuch-search-process-filter, with the
following changes:

- notmuch-search-json-parser becomes notmuch-json-parser.
- notmuch-search-parser-state becomes notmuch-json-state.

We also rearrange the json-error case but are careful to always call
error-function in the results buffer.



Ethan