Re: How to approach a ConTeXt language server?

["Philipp A." <flying-sheep@web.de>]

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Thank you, that’s great information!

What’s the “export XML”?

Am Di., 4. Feb. 2020 um 19:09 Uhr schrieb Henning Hraban Ramm <
texml@fiee.net>:

>
> > Am 2020-02-04 um 16:45 schrieb Philipp A. <flying-sheep@web.de>:
> >
> > Language servers are the new big deal in editor and IDE development:
> https://langserver.org/
> >
> > It would be cool to have a ConTeXt one for autocompletion (for ConTeXt:
> command names, \cite IDs, labels, named parameters, …), go-to-definition,
> hover information (docs about a command) and so on.
> > The way it works is that you have a server process that is the source of
> truth for all this information, and the editor passes requests to it.
> > The editor tells the server when it opens/closes files and when the user
> requests something of the above.
> >
> > The way I’d implement it in ConTeXt is to keep a list of open ConTeXt
> projects in the server (obtained by following \include, \component,
> \product, \environment, \project).
> > Now my questions begin:
> >       • Then I’d make context load the project without compiling it to a
> PDF but make it execute some Lua (how do I do this?)
> >       • I’d need a way to get all available commands with their
> signatures into Lua. I assume this is done here, but how?
> http://www.pragma-ade.nl/general/qrcs/setup-en.pdf
>
> Look for the interface files i-*.xml
>
> >       • Optimally, for hover information and completion, I’d want some
> help/doc text for each command that has some. Is there a way to get it?
>
> No, there isn’t. It could be in the interface files if someone would put
> in the work.
>
> >       • Optimally, for label autocompletion, I’d also like a list of
> defined labels. Since I played around with bibliographies I already know
> how to query the bibliography DB from Lua.
> >       • Optimally I’d also want some parse tree of each document, but I
> assume the way macros work, this doesn’t exist? This would make things
> easier that I’d otherwise have to (imperfectly) parse out of the document
> (due to things like catcode changes, but I guess I can pretend they don’t
> exist and \unprotect is always on)
>
> You could run ConTeXt and use the export XML.
>
> >       • Optimally, for go-to-definition, I’d also want a list of files
> ConTeXt loaded so I can find definitions in it.
> > Can anyone help me, especially with 1-2? To get me started, it would be
> great to have an example script and a command line to invoke it, which
> makes ConTeXt load a main tex file, execute some Lua, and exit without
> creating a document or writing anything else to the channel Lua writes to
> (stdout?).
>
> Look at the .tuc file that’s created in a ConTeXt run, it’s a Lua table
> and contains “all“ the information about the project.
>
>
> Greetlings, Hraban
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