Le 05/11/25 à 23h41, Hongyi Zhao a écrit : > The most significant advantage I've found is the on-the-fly > diagnostics. The server flags issues like undefined labels,
Arash has answered this point. > incorrect command usage, or missing packages as you type, often before > you even think about compiling. The TeXstudio (TXS) LaTeX IDE has such a nice feature. Indeed, if you insert a command/environment: - belonging to a package not loaded, - that is misspelled, it is instantly highlighted so that you can fix the problem before you compile. This feature is based on .cwl files, one per package (an also some for TeX, LaTeX, etc.), that contain the commands/environments the package define.Q Such .cwl files are manually created, essentially by Matthew Bertucci and the VSCode extension LaTeX workshop: https://github.com/James-Yu/LaTeX-Workshop converts TXS's .cwl into JSON files for its own completer. See e.g.: ┌──── │ https://github.com/James-Yu/LaTeX-Workshop/blob/master/data/packages/graphicx.json └──── You can see, at line: ┌──── │ https://github.com/James-Yu/LaTeX-Workshop/blob/91df98e9a2059abd686907b87c4d2d1ba18b7073/data/packages/graphicx.json#L57 └──── that the nature of the arguments can be controlled. Of course, not all the packages are covered and there are mistakes sometimes, and the final judge is the latex engine. Maybe these json files files could be used by Emacs in order to offer such a feature… > This shortens the feedback cycle dramatically and catches small > mistakes instantly. Indeed. Regards. -- Denis
