Add capability for multi-line items

Sometimes you want an item to be a block of text. Using a special character like \n doesn’t follow Margin’s rules of plain text readability.

Maybe something like a pipe | character that enforces strict text blocks:

Favorite Quotes

    | Be thankful for what you have; you’ll end up having more. 
    | If you concentrate on what you don’t have, you will never, ever have enough. 
    |
    | - Oprah Winfrey

    | You can discover more about a person in an hour of play than in a year of conversation.
    |
    | - Plato

[burlesona]

I disagree with this for two reasons:

First, for the human, I would very much like to be able to make simple lists like…

Shoe Brands:
  Nike
  Adidas
  Puma

… without being required to leave extra empty lines or delimiters between things to indicate they are separate items.

Second, from the point of view of trying to balance this being simple for both humans and computers, I would argue that the spec should instead be strict, that an item exists as one line only, terminated by a \n. Nearly every program that displays text can (and does) word wrap, and many allow you to define a custom word wrapping. I don’t think the added complexity and ambiguity is worth the benefit of supporting manual line breaks without splitting items.

[benjaminwil]

After exploring this some more, I think that I agree.

I think it would be reasonable for an application that is concerned with long-form content to find their own way to join multiple items post-Margin.

JSON arrays seem to preserve ordering, too, so an array of children would be reproducible over and over again in different applications. 💯