Define custom items in template grammar

[nkakouros]

I would like to define a pattern, e.g.

{{_tomorrow_}}

that would do what

{{_lua:os.execute('date --date="next day" +%Y-%m-%d')_}}

would do. The reason is that I use the tomorrow date in several places in my templates and it is hard to maintain it by replicating the lua snippet everywhere.

[nkakouros]

Thank you adding this by default in your plugin.

But given that users will have a lot of different types of such patterns, would you consider providing a way to the user to extend the expr table?

[glepnir]

provide a custom expression interface will make sense.