Book Image

Mastering Vim

By : Ruslan Osipov
Book Image

Mastering Vim

By: Ruslan Osipov

Overview of this book

Vim is a ubiquitous text editor that can be used for all programming languages. It has an extensive plugin system and integrates with many tools. Vim offers an extensible and customizable development environment for programmers, making it one of the most popular text editors in the world. Mastering Vim begins with explaining how the Vim editor will help you build applications efficiently. With the fundamentals of Vim, you will be taken through the Vim philosophy. As you make your way through the chapters, you will learn about advanced movement, text operations, and how Vim can be used as a Python (or any other language for that matter) IDE. The book will then cover essential tasks, such as refactoring, debugging, building, testing, and working with a version control system, as well as plugin configuration and management. In the concluding chapters, you will be introduced to additional mindset guidelines, learn to personalize your Vim experience, and go above and beyond with Vimscript. By the end of this book, you will be sufficiently confident to make Vim (or its fork, Neovim) your first choice when writing applications in Python and other programming languages.
Table of Contents (12 chapters)

Recording and playing macros

Macros are an extremely powerful tool that allow you to record and replay a set of actions.

Let's perform the same operation as before, using macros. We have the following code in farm.py:

...
def act(self, target):
for animal in self.animals:
if animal.get_kind() == 'cat':
print(animal.act(target, 'meows'))
elif animal.get_kind() == 'dog':
print(animal.act(target, 'barks'))
elif animal.get_kind() == 'sheep':
print(animal.act(target, 'baas'))
else:
print(animal.act(target, 'looks'))
...

We'd like to reorder arguments in animal.act calls. Open farm.py, and move your cursor to the top of the file with gg:

Enter macro recording mode using q followed by any register (let's pick a), as follows: qa...