Mastering Vim

Types of folds

Vim is somewhat intelligent when it comes to folding code, and supports multiple ways to fold code. The folding method is guarded by a foldmethod option in your .vimrc file. Supported fold methods are as follows:

• manual allows you to manually define folds. This becomes unrealistic when working with any substantial body of text.
• indent supports indentation-based folding, which is perfect for languages and code bases where indentation matters (regardless of the language you're working with, a standardized code base is likely to have some consistent indentation, making indent a quick and easy way to fold away bits you don't care for).
• expr allows using Vim scripting language to define folds. This is an extremely powerful tool ...