Known Command Does Not Show Up in Completion

[CakeUser321]

When using the package xfrac, the command \sfracdoes not show up in the auto completion list. However it is not marked red, so the command must be known.

Environment

• TeXstudio: TeXstudio 2.12.6 (hg 6631:16db084dae24)
• Qt: 5.9.5, compiled with Qt 5.9.3 R
• OS: Linux 5.3.0-46-generic LanguageTool errors not underlined #38~18.04.1-Ubuntu SMP Tue Mar 31 04:17:56 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
• TeX distribution: TexLive 2020

Expected behavior

\sfrac is available in the auto completion.

Actual behavior

\sfrac is not available in the auto completion.

How to reproduce

\documentclass[english]{book}
\usepackage{xfrac}

\begin{document}
	\sfrac{1}{2}
\end{document}

[muzimuzhi]

Currently texstudio does not contain the cwl file for xfrac package. And autogenerated cwl files are used for syntax highlighting (not marked red) only, not for autocompletion. See #336 (comment).

[CakeUser321]

Hello muzimuzhi, thank you for your prompt response! According to #336 (comment) the auto completion only works for a package if the corresponding cwl file is stored in ~/.config/texstudio/completion/user. However on my machine, this directory is empty. Nontheless, auto completion works quite well for most packages (e.g. FloatBarrier from placeins, although ~/.config/texstudio/completion/user/placeins.cwl does not exist).

[muzimuzhi]

I have opened #1089 to add xfrac.cwl to texstudio. As a quick solution, you can save the contents of file xfrac.cwl in ~/.config/texstudio/completion/user/xfrac.cwl.

[CakeUser321]

I have opened #1089 to add xfrac.cwl to texstudio. As a quick solution, you can save the contents of file xfrac.cwl in ~/.config/texstudio/completion/user/xfrac.cwl.

This fix does unfortunately not work for me.

[muzimuzhi]

According to #336 (comment) the auto completion only works for a package if the corresponding cwl file is stored in ~/.config/texstudio/completion/user.

The autocompletion works if there is a corresponding cwl file

• installed with texstudio (this is the case for placeins.cwl), or
• in path ~/.config/texstudio/completion/user.

[muzimuzhi]

I have opened #1089 to add xfrac.cwl to texstudio. As a quick solution, you can save the contents of file xfrac.cwl in ~/.config/texstudio/completion/user/xfrac.cwl.

This fix does unfortunately not work for me.

You need to reopen texstudio.

[CakeUser321]

You need to reopen texstudio.

I already tried that. Furthermore, I tried to enable xfrac.cwl manually in the options.
Neither

1. xfrac.cwl not manually imported + restart
   nor
2. xfrac.cwl manually imported + restart
   did work...

Edit: Maybe this was a bit ambiguous. I copied xfrac.cwl from ~/.config/texstudio/completion/autogenerated/xfrac.cwl to ~/.config/texstudio/completion/user/xfrac.cwl.

[CakeUser321]

The autocompletion works if there is a corresponding cwl file

* installed with texstudio (this is the case for `placeins.cwl`), or

* in path `~/.config/texstudio/completion/user`.

That makes sense, thank you. So what you are saying is, basically I have to wait until a .cwl file for the xfrac package has been manually created?

[muzimuzhi]

This is strange. On my side, after copying the xfrac.cwl to ~/.config/texstudio/user, I get command \sfrac shown in autocompletion.

Notice that you use a somewhat old release of texstudio (2.12.6), would you test the latest stable release (2.12.22)?

[CakeUser321]

Notice that you use a somewhat old release of texstudio (2.12.6), would you test the latest stable release (2.12.22)?

Sure, I can do that. Did you copy the xfrac.cwl file from the autogenerated directory or did you get this file from somewhere else?

[muzimuzhi]

You can get the contents of (tidy and reliable) xfrac.cwl here: https://github.com/texstudio-org/texstudio/pull/1089/files#diff-419ebdee302edda6b9a6de72fd25c326.

[CakeUser321]

Thanks, with the new xfrac.xwl is does work! Even with the old version. The problem was, that I copied the autogenerated file and not your new file.

[CakeUser321]

Maybe it would make sense to update the section Why does a command not show up in the completion? in the FAQ https://sourceforge.net/p/texstudio/wiki/Frequently%20Asked%20Questions/#why-does-a-command-not-show-up-in-the-completion. Your point is not included in it directly, one might think that the autogenerated files are sufficient

[muzimuzhi]

The problem was, that I copied the autogenerated file and not your new file.

I have opened #1089 to add xfrac.cwl to texstudio. As a quick solution, you can save the contents of file xfrac.cwl in ~/.config/texstudio/completion/user/xfrac.cwl.
quoted from #1088 (comment)

Ok, that might be my fault to not explicitly mention "save the contents of file xfrac.cwl provided in my pr."