Support language without line comment

[fortierq]

I would like to add a language (OCaml) which has only block comments, and no line comments.
However, _SCRIPT_EXTENSIONS expects line comments.
Is it easy to add support for block comments? Or should I give up?

This is what I did so far: https://github.com/fortierq/jupytext/commit/b85303bbcf689ff8be299aff4e8cd9489326d367

[mwouts]

Hi @fortierq , thanks for raising this.

Well, this line comment character is just used to comment out magic commands, which I guess are not so frequent in OCaml notebooks ?

Anyway I think it should be rather easy to handle this specificity of OCaml. I think we would just have to modify the functions jupytext.magics.comment_magic and jupytext.magics.unesc to remove the end block comment.

Would you like to update your notebook so that it includes a magic command? Also I think we should define the comment field as the block comment character, and modify the comment_magic and unesc functions to block comment every magic command.

[fortierq]

Hi @mwouts, thanks for your answer.

I don't plan to use magic commands and it is probably not used much indeed.
However, it looks like comments are also used to convert to a script (jupytext --to ml ...), for the Jupytext header and the markdown?

[mwouts]

However, it looks like comments are also used to convert to a script (jupytext --to ml ...), for the Jupytext header and the markdown?

Yes, you're right. Do you think that using block comments on every line would be acceptable? Also, for the markdown cells we have another option, which is to use multi-line strings - is it legal in OCaml to have multi line strings (and how do they look like)? Thanks!