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CWL Files

CWL stands for Completion Word List.

The format was originally used in Kile and
defined commands in the auto-completer.

TeXStudio uses an extended version of CWL to include additional
semantic information and allow for cursor / placeholder placement.

Uses

Creation

TeXStudio ships .cwl files for most Common Packages.

If a packages .cwl file cannot be found, TeXStudio
tries to auto-generate it from the given .sty file.

Naturally, auto-generation is not perfect and .cwl files can supply
more information, like marking commands as citations so they can
be handled like \cite for auto-completion and citation checking.

You can use your own .cwl files by placing them in the settings directory.

Check the User Manual for the format specification.

You can also Contribute CWLs for not yet included packages.

Location

TeXStudio comes with Built-In .cwl files.

CWL files are searched for in the folloing places:

Versions > 2.10.8
Older Versions

Loading

Every time you use the \usepackage command,
the corresponding .cwl file is loaded for the
current document.

You can also statically link files in Options › Completion.

Early TeXStudio

Early versions used to only allow for statical linking,
now just tex.cwl is activated in this way (by default).