Log file with lua filter information

[estedeahora]

I am using pandoc with a set of custom lua filters. In the call to pandoc I use '--log=file.log', but I am interested in this log file incorporating information arising from the lua filters. In the lua filter I display this information in the console via io.write or error.

Is there any way to incorporate this directly into the 'file.log'?

Thanks!

[jgm]

I don't believe there is. @tarleb would it be feasible to expose a function that calls report and generates a special log message like FilterWarning or FilterInfo? I can't remember whether the kind of threading of state we do would allow this.

[tarleb]

Using warn should generate a pandoc log entry (since pandoc 3.1.4). Console output can then be controlled via warn('@on') and warn('@off').

[estedeahora]

Thank you very much for your answer, but it doesn't seem to be working with 'warn'. Any idea what I might be doing wrong?

[tarleb]

What's your pandoc version? This was added in pandoc 3.1.4, so maybe an update might make this work?

[estedeahora]

I'm using Pandoc 3.1.12.1.

I tried again and managed to solve it with 'warn'! I don't know what I did wrong yesterday.

Thank you very much!

[estedeahora]

Would it be possible to extend this behaviour to 'error' and 'io.write'?

[tarleb]

Maybe we could provide a report function as suggested by @jgm. This would give more general access to pandoc's logging system. There are other issues, like #9077, which could be solved by allowing finer-grained access to logging objects. Feel free to raise a separate issue for this.