Navigation/Book

[chaoxu]

We want the system to be flexible enough so it can be either used to write a book, or a website.

We want to support some arbitrary navigation system. here are 4 types I was thinking about

1. All posts are completely independent: tag based navigation/reverse chronology blog post like navigation.
2. Some posts are related some are not, some categorization might be useful: The user can specify the navigation tree related to each post.
3. The posts are VERY related: then make this into a book.

This is completely inherent from the folder: in each folder there is a navigation.yaml which would specify which form it is. If non-exists, it defaults to reverse chronology based.

A book is a linearly ordered list of chapters. Occasionally, maybe allowing parts.
Here, we want each "post" to be the same as a chapter.
One issue might be a single chapter is too long for a post, it could also be just a section.
This should be something user can decide.